A MXene-based sensor probe preparation method, sensor probe and application

Abstract

The present application discloses a method for preparing a MXene-based sensor probe, a sensor probe, and an application thereof, for improving sensor sensitivity. The method of the present application comprises: preparing a MXene solution, and sealing and refrigerating it for standby use; winding an optical fiber on an optical fiber fixing disk to form a single-layer optical fiber sensitive disk; taking a preset amount of MXene solution, and adding graphene oxide, cellulose, and zinc sulfate heptahydrate solution for ultrasonic and stirring to form a mixed solution; introducing the mixed solution into a self-made template, placing a single-layer optical fiber sensitive disk, and placing a prefabricated copper sheet under the self-made template, and performing a freeze-drying operation after the placement is completed to obtain a freeze-dried MXene-based optical fiber sensitive disk; curing the MXene-based optical fiber sensitive disk to obtain a cured optical fiber sensitive disk; connecting a first Faraday rotator mirror and a one-to-two bare optical fiber coupler to the two ends of the surface of the cured optical fiber sensitive disk, and connecting a second Faraday rotator mirror to the other end of the one-to-two bare optical fiber coupler to obtain a MXene-based sensor probe.

Description

Technical Field

[0001] The present application relates to the field of sensing technology, and in particular to a method for preparing a MXene-based sensing probe, a sensing probe, and applications. Background Art

[0002] In the broadest definition, a sensor or sensing probe is a sensing device, module or subsystem whose purpose is to detect events or changes in the environment and send this information to other electronic devices.

[0003] Fiber optic sensors are a new type of sensor that has emerged alongside the development of optical fiber and fiber optic communication technologies. They are corrosion-resistant, have minimal impact on media, and are highly resistant to electromagnetic interference. Compared to traditional sensors, fiber optic sensors use light as a carrier of sensitive information and optical fiber as a medium for transmitting this information. They share the unique characteristics of fiber optics and optical measurement. This new technology has been widely used in many fields in my country in recent years.

[0004] Although the optical fiber sensors currently on the market are developing towards sensitivity and precision, their sensitivity is still not sensitive enough. For example, the measurement sensitivity to relatively small mechanical force signals is not sensitive enough. Summary of the Invention

[0005] The present application provides a MXene-based sensor probe preparation method, a sensor probe, and an application thereof, for improving the sensing sensitivity of the sensor probe.

[0006] The first aspect of the present application provides a method for preparing a MXene-based sensing probe, comprising:

[0007] Prepare MXene solution, seal and refrigerate for later use;

[0008] Winding optical fiber on the optical fiber fixing disk to make a single-layer optical fiber sensitive disk;

[0009] A predetermined amount of MXene solution is taken, and graphene oxide, cellulose, and zinc sulfate heptahydrate solution are added thereto, followed by ultrasonication and stirring to prepare a mixed solution;

[0010] The mixed solution is introduced into a self-made template, the single-layer optical fiber sensitive disk is placed, and a prefabricated copper sheet is placed under the self-made template. After the placement is completed, a freeze-drying operation is performed to obtain a freeze-dried MXene-based optical fiber sensitive disk;

[0011] curing the MXene-based optical fiber sensitive disk to obtain a cured optical fiber sensitive disk;

[0012] A first Faraday rotator mirror and a one-to-two bare fiber coupler are respectively connected to both ends of the surface of the cured optical fiber sensitive disk, and a second Faraday rotator mirror is connected to the other end of the one-to-two bare fiber coupler to obtain a MXene-based sensing probe.

[0013] Optionally, preparing the MXene solution comprises:

[0014] Place lithium fluoride and concentrated hydrochloric acid in a first centrifuge tube, place them in an ice bath, and stir them thoroughly. Then, add titanium aluminum carbide in three portions. After all the titanium aluminum carbide is added to the first centrifuge tube, place them in an ice bath again and stir them. Finally, heat and stir them in a 40° C. water bath to obtain the original reaction solution.

[0015] The original reaction solution is introduced into a second centrifuge tube, and hydrochloric acid solution is added for centrifugal washing to obtain a precipitate;

[0016] refrigerating the sediment for 8 to 10 hours;

[0017] The refrigerated precipitate was placed in water for ice bath, ultrasonication and centrifugation, and the supernatant was taken to obtain the MXene solution.

[0018] Optionally, the step of placing lithium fluoride and concentrated hydrochloric acid in a first centrifuge tube, placing them in an ice bath and stirring them thoroughly is followed by adding titanium aluminum carbide in three portions. After all the titanium aluminum carbide is added to the first centrifuge tube, the step of placing them in an ice bath and stirring them again is followed by heating and stirring them in a 40° C. water bath to obtain the original reaction solution, which comprises:

[0019] Place 1 g of lithium fluoride, 4 mL of water, and 12 mL of concentrated hydrochloric acid in a first centrifuge tube and stir in an ice bath for 5 min.

[0020] Add 0.15 g of titanium aluminum carbide every 3 minutes for a total of 3 times. After all the titanium aluminum carbide is added, stir in an ice bath for 10 minutes.

[0021] The mixture was heated and stirred in a 40°C water bath for 48 h to obtain the original reaction solution.

[0022] Optionally, the centrifugal cleaning process includes:

[0023] Add hydrochloric acid solution to the second centrifuge tube after the original reaction solution is introduced, centrifuge at 4000 rpm for 5 minutes, discard the supernatant, continue to add hydrochloric acid solution, and repeat the above steps three times;

[0024] An aqueous solution was added to the centrifuge tube and washed with water three times.

[0025] Optionally, the hydrochloric acid solution is a hydrochloric acid solution with a concentration of 18.5%.

[0026] Optionally, placing the refrigerated precipitate in water for ice bath, ultrasonication and centrifugation comprises:

[0027] The refrigerated precipitate was placed in 120-150 mL of aqueous solution, subjected to ice bath ultrasound for 40 min, and then centrifuged at 4000 rpm for 5 min.

[0028] Optionally, the capacity of the MXene solution is 15 mL, the capacity of the graphene oxide is 120 mg, the capacity of the cellulose is 150 mg to 200 mg, and the capacity of the zinc sulfate heptahydrate solution is 0.12 mL.

[0029] Optionally, the inner ring radius of the single-layer optical fiber sensitive disk is 3.2 cm, and the outer ring radius is 5.8 cm.

[0030] A second aspect of the present application provides a MXene-based sensing probe, which is prepared according to the sensing probe preparation method described in the first aspect, comprising:

[0031] One-to-two bare fiber coupler, MXene-based fiber sensitive disk, first Faraday rotator mirror, and second Faraday rotator mirror;

[0032] The optical fiber sensitive disk is connected to the first Faraday rotator mirror;

[0033] The one-to-two bare fiber coupler is connected to the optical fiber sensitive disk and the second Faraday rotation mirror respectively.

[0034] A third aspect of the present application provides an application of a MXene-based sensing probe as a sensing probe of a Michelson interferometer, including:

[0035] The MXene-based sensing probe is the MXene-based sensing probe described in the second aspect.

[0036] It can be seen from the above technical solutions that this application has the following advantages:

[0037] First, a MXene solution is prepared and sealed and refrigerated for later use; an optical fiber is wound around an optical fiber fixing disk to form a single-layer optical fiber sensitive disk; a preset amount of MXene solution is taken, and graphene oxide, cellulose, and zinc sulfate heptahydrate solution are added for ultrasonic and stirring to form a mixed solution; the mixed solution is introduced into a self-made template, a single-layer optical fiber sensitive disk is placed, and a prefabricated copper sheet is placed under the self-made template. After the placement is completed, the template is freeze-dried to obtain a freeze-dried MXene-based optical fiber sensitive disk; the MXene-based optical fiber sensitive disk is cured to obtain a cured MXene-based optical fiber sensitive disk; a first Faraday rotator mirror and a one-to-two bare fiber coupler are connected to the two ends of the surface of the optical fiber sensitive disk, and a second Faraday rotator mirror is connected to the other end of the one-to-two bare fiber coupler to obtain a MXene-based sensing probe.

[0038] Therefore, the present application provides a MXene-based sensing probe, in which MXene is solidified onto the surface of the sensing element of the sensing probe, namely the surface of the optical fiber sensing disk. Due to the advantages of MXene materials such as excellent conductivity, high sensitivity, and a wide strain range, as well as its unique "accordion" layered structure, it is highly sensitive to external forces. When slightly stimulated by external forces, the layered MXene structure quickly deforms, transmitting the mechanical force to the surface of the optical fiber sensing disk. Therefore, the sensing probe of the present application can improve its sensitivity to tiny mechanical force signals, thereby improving the sensing sensitivity of the sensing probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in this application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 A schematic flow chart of an embodiment of a method for preparing a MXene-based sensor probe provided in this application;

[0041] Figure 2 A schematic flow chart of another embodiment of the method for preparing a MXene-based sensor probe provided in this application;

[0042] Figure 3 A schematic structural diagram of an embodiment of a MXene-based sensing probe provided in this application;

[0043] Figure 4 Schematic diagram of the sensitivity test results of the MXene-based sensing probe provided in this application. DETAILED DESCRIPTION

[0044] The present application provides a MXene-based sensor probe preparation method, a sensor probe, and applications for improving the sensing sensitivity of the sensor probe.

[0045] See also Figure 1 , Figure 1 An embodiment of a method for preparing a MXene-based sensing probe provided in this application includes:

[0046] 101. Prepare a MXene solution, and seal and refrigerate for later use;

[0047] MXene materials are a class of metal carbon / nitrides with a two-dimensional layered structure. Their general chemical formula is Mn+1XnTX, where (n=1–3), M represents an early transition metal such as Ti, Zr, V, Mo, etc.; X represents C or N elements, and TX is a surface group, usually -OH, -O, -F and -Cl. Due to its lamellar structure similar to graphene, it is named MXene.

[0048] In this embodiment, a titanium aluminum carbide material can be added to a mixed solution of hydrochloric acid and a fluoride salt for reaction, followed by centrifugation, washing, and sonication to obtain a MXene solution. The titanium aluminum carbide material can be Ti3AlC2, Ti3SiC2, or Ti3AlCN, or at least one of the three. The fluoride salt can be LiF, NaF, or KF. After the MXene solution is obtained, it is sealed and refrigerated until use.

[0049] 102. Winding the optical fiber on the optical fiber fixing disk to form a single-layer optical fiber sensitive disk;

[0050] In this embodiment, the optical fiber fixing disk or optical fiber winding disk is a device capable of winding an optical fiber. Therefore, the optical fiber can be wound on the optical fiber fixing disk to form a single-layer optical fiber sensitive disk. For example, the optical fiber sensitive disk can be as follows: Figure 3 Fiber optic sensitive disk 2 is shown in FIG. Specifically, an 8-meter-long optical fiber can be wound into a single-layer fiber optic sensitive disk with an inner ring radius of 3.2 cm and an outer ring radius of 5.8 cm. Alternatively, other structures are possible. Alternatively, a single-layer fiber optic sensitive disk can be fabricated first and then the MXene solution prepared. The specific structure is not limited here.

[0051] 103. Take a preset amount of MXene solution, add graphene oxide, cellulose, and zinc sulfate heptahydrate solution, perform ultrasonication and stirring, and prepare a mixed solution;

[0052] In this embodiment, an appropriate amount of MXene solution can be measured according to actual needs, graphene oxide can be added, ultrasonicated and stirred to form a suspension, cellulose can be added and stirred, and finally zinc sulfate heptahydrate solution can be added and stirred to form a MXene solution. It should be noted that the ratio of the MXene solution, graphene oxide, and cellulose can be set according to actual needs. For example, the ratio of the MXene solution, graphene oxide, and cellulose can be adjusted according to the elasticity and voids of the MXene to be constructed, and the specific ratio is not limited here.

[0053] 104. Introducing the mixed solution into a self-made template, placing the single-layer optical fiber sensitive disk, and placing a prefabricated copper sheet under the self-made template. After the placement is completed, freeze-drying is performed to obtain a freeze-dried MXene-based optical fiber sensitive disk;

[0054] In this embodiment, after the mixed solution in step 103 is prepared, the mixed solution is introduced into a self-made template, and an optical fiber is placed into the self-made template. A prefabricated copper sheet is placed below the self-made template, and the prefabricated copper sheet and the self-made template are bonded together. It should be noted that the prefabricated copper sheet or template can be made in-house according to actual conditions, or an existing copper sheet or template can be used, and the specific details are not limited here.

[0055] After all the placement is complete, the homemade copper sheet and template are freeze-dried to obtain a freeze-dried MXene-based optical fiber sensor disk. Specifically, the freeze-drying process involves first rapidly freezing the disk using liquid nitrogen, then transferring the disk to a freeze dryer for drying. This yields a freeze-dried MXene-based optical fiber sensor disk. It should be noted that other refrigerants can also be used for rapid freezing in this example, and the specifics are not limited here.

[0056] 105. Curing the MXene-based optical fiber sensitive disk to obtain a cured optical fiber sensitive disk;

[0057] In this embodiment, the freeze-dried MXene material adheres to the optical fiber surface of the optical fiber sensing disk. To enhance the adhesion stability of the MXene material to the optical fiber, the MXene-based optical fiber sensing disk needs to be cured after it is obtained to strengthen the connection between the MXene material and the optical fiber sensing disk. For example, the MXene and optical fiber sensing disk can be cured by gel curing, coagulation bath treatment, or other curing methods, which are not limited here.

[0058] 106. Connect a first Faraday rotator mirror and a one-to-two bare fiber coupler to both ends of the surface of the cured optical fiber sensing disk, and connect a second Faraday rotator mirror to the other end of the one-to-two bare fiber coupler to obtain a MXene-based sensing probe.

[0059] In this embodiment, after obtaining the cured MXene-based optical fiber sensitive disk, a first Faraday rotator mirror and a one-to-two bare fiber coupler are connected to the two ends of the optical fiber sensitive disk. Specifically, the first Faraday rotator mirror and the one-to-two bare fiber coupler are connected to the connection ports at both ends of the optical fiber of the optical fiber sensitive disk. Then, a second Faraday rotator mirror is connected to the other end of the one-to-two bare fiber coupler to obtain a MXene-based sensing probe. Among them, the two Faraday rotators are used to reduce polarization attenuation. It should be noted that the first Faraday rotator mirror, the second Faraday rotator mirror and the one-to-two bare fiber coupler can be prepared according to the existing technology, and the specific details are not described here.

[0060] In this embodiment, a MXene-based sensing probe is prepared by the above-mentioned preparation method. During operation, the optical fiber of the optical fiber sensitive disk produces elastic bending of the disk surface under the action of external vibration, resulting in a corresponding strain distribution, thereby realizing signal measurement. Compared with the limited vibration measurement range achievable by traditional optical fiber sensing probes, resulting in limited measurement sensitivity, the MXene-based sensing probe of the present application has a special "accordion" layered structure unique to the MXene material. When stimulated by a slight force, the MXene space undergoes rapid deformation, making the sensing probe more sensitive to external forces, having higher mechanical flexibility, and being able to measure tiny vibration stimuli, achieving a wider vibration measurement range, and improving the sensing sensitivity of the sensing probe.

[0061] To make the MXene-based sensor probe preparation method provided in this application more clear and easy to understand, the embodiments of the present invention will be further described in detail below in conjunction with specific implementation examples:

[0062] 201. Place lithium fluoride and concentrated hydrochloric acid in a first centrifuge tube, place them in an ice bath and stir them thoroughly, then add titanium aluminum carbide in three portions. After all the titanium aluminum carbide is added to the first centrifuge tube, place them in an ice bath again and stir them, and finally heat and stir them in a 40° C. water bath to obtain the original reaction solution;

[0063] In this embodiment, lithium fluoride and concentrated hydrochloric acid are reacted, and Ti3AlC2 is slowly added to prepare the original reaction solution. Specifically, the preparation can be carried out according to the following material ratio and operation method:

[0064] 1) First, weigh 1 g of lithium fluoride (LiF), 4 mL of water, and 12 mL of concentrated hydrochloric acid solution. The weighed lithium fluoride, water, and concentrated hydrochloric acid solution are placed in a 50 mL first centrifuge tube. The first centrifuge tube is then placed in an ice bath and stirred for 5 minutes in the ice bath to allow for full reaction.

[0065] 2) Weigh 0.45g of Ti3AlC2 and add 0.15g max (maximum 0.15g) of Ti3AlC2 to the first centrifuge tube three times every 3 minutes. After all the Ti3AlC2 has been added, continue stirring the reaction solution in the first centrifuge tube in an ice bath for 10 minutes.

[0066] 3) Seal the first centrifuge tube after stirring, for example, by tightening the mouth of the centrifuge tube with a rubber band, and then place it in a 40° C. water bath for heating and stirring for 48 hours. Specifically, place the first centrifuge tube in a water bath and stir in the water bath for 48 hours to obtain the original reaction solution.

[0067] 202. Pour the original reaction solution into a second centrifuge tube, add hydrochloric acid solution and centrifuge to obtain a precipitate;

[0068] In this embodiment, after obtaining the original reaction solution after the reaction is completed, the original reaction solution is transferred from the first centrifuge tube to a second centrifuge tube and then washed with a hydrochloric acid solution to obtain a precipitate for use. Specifically, after the reaction is completed, the rubber band is cut with scissors, the original reaction solution in the first centrifuge tube is poured into the second centrifuge tube, 18.5% hydrochloric acid solution is added, and the precipitate is centrifuged at 4000 rpm for 5 minutes to wash the precipitate. The remaining solution after centrifugation is then discarded, and the precipitate obtained after centrifugation is obtained. 18.5% hydrochloric acid solution is further added, and the above steps are repeated three times to wash the precipitate. The precipitate is then washed three times with an aqueous solution to obtain a final precipitate.

[0069] 203. Refrigerate the sediment for 8 to 10 hours;

[0070] In this embodiment, after obtaining the precipitate, the precipitate is placed in a refrigerator or a refrigeration device and refrigerated for 8 to 10 hours.

[0071] 204. The refrigerated precipitate is placed in water for ice bath, ultrasonication, and centrifugation, and the supernatant is collected to obtain a MXene solution;

[0072] In this embodiment, the refrigerated precipitate is placed in an aqueous solution for ultrasonic dispersion in an ice bath, and then centrifuged to obtain the supernatant after the precipitate is dispersed in water. The supernatant is the MXene solution. Specifically, first take a 500mL beaker and a 100mL measuring cylinder. The precipitate is placed in a beaker, and 120mL-150mL of water is measured using a measuring cylinder and added to the beaker. Then, ultrasonication is performed in an ice bath state for 40 minutes to ultrasonically disperse the precipitate. Finally, the solution in the beaker is centrifuged at a speed of 4000rpm for 5 minutes to centrifuge and stratify the solution in the beaker, and then the supernatant in the beaker is obtained to obtain the prepared MXene solution. The MXene solution is then sealed and refrigerated for later use.

[0073] 205. Winding the optical fiber on the optical fiber fixing disk to form a single-layer optical fiber sensitive disk;

[0074] Step 205 in this embodiment is the same as the aforementioned Figure 1 Step 102 in the illustrated embodiment is similar and will not be described in detail here.

[0075] 206. Take a predetermined amount of MXene solution, add graphene oxide, cellulose, and zinc sulfate heptahydrate solution, perform ultrasonication and stirring, and prepare a mixed solution;

[0076] In this embodiment, the amount of MXene solution can be determined based on the structural dimensions of the single-layer optical fiber sensitive disk or the concentration of the MXene solution. Then, a preset amount of MXene solution is obtained, and corresponding amounts of graphene oxide, cellulose, and zinc sulfate heptahydrate solution are added to react to form a MXene-based mixed solution. For example, if the structural dimensions of the single-layer optical fiber sensitive disk are a circular sensitive disk with an inner ring radius of 3.2 cm and an outer ring radius of 5.8 cm. When the MXene solution is prepared according to the ratio described in the above steps, the concentration of the MXene solution is approximately 2 g / L. In this embodiment, 15 mL of MXene solution can be measured and stirred for ten minutes. Then, 120 mg of graphene oxide is added and ultrasonicated for 0.5 h, followed by magnetic stirring for 0.5 h. After forming a suspension of the MXene solution and graphene oxide, 150 mg-200 mg of cellulose (CNF-C) is added, and magnetic stirring is continued for 20 h-24 h. Finally, 0.12 mL of 5 g / L zinc sulfate heptahydrate solution was added and magnetically stirred for 10 min to obtain a MXene-based mixed solution.

[0077] In this embodiment, adding a certain amount of cellulose and graphene oxide to the MXene solution can adjust the spatial structure size of the MXene during configuration, that is, adjust the spatial state of the MXene when it forms an "accordion" layered structure. For example, the elastic state of the MXene material itself and the gap state between the layered structures can be adjusted.

[0078] 207. The mixed solution is introduced into a self-made template, a single-layer optical fiber sensitive disk is placed, and a prefabricated copper sheet is placed under the self-made template. After the placement is completed, a freeze-drying operation is performed to obtain a freeze-dried MXene-based optical fiber sensitive disk;

[0079] 208. Curing the MXene-based optical fiber sensitive disk to obtain a cured optical fiber sensitive disk;

[0080] 209. A first Faraday rotator mirror and a one-to-two bare fiber optical coupler are connected to both ends of the surface of the cured optical fiber sensitive disk, and a second Faraday rotator mirror is connected to the other end of the one-to-two bare fiber optical coupler to obtain a MXene-based sensing probe.

[0081] Steps 207 to 209 in this embodiment are similar to those in the aforementioned Figure 1 Steps 104 to 106 in the illustrated embodiment are similar and are not described in detail here.

[0082] It should be noted that the above Figure 2 The embodiments shown are implemented based on the technology of the present invention, but the protection scope of the present invention is not limited to the above embodiments.

[0083] In this example, the prepared MXene-based mixed solution and the optical fiber sensing disk are cured and connected. Due to the advantages of MXene materials such as excellent conductivity, high sensitivity, and a wide strain range, as well as its unique "accordion" layered structure, it is very sensitive to external forces. When slightly stimulated by external forces, the layered MXene structure quickly deforms and transmits the mechanical force to the surface of the optical fiber sensing disk, thereby improving the sensing sensitivity of the sensor probe. For details, please refer to Figure 4 , Figure 4 The following are the measurement results of the frequency and sensitivity of the traditional sensor probe and the MXene-based sensor probe prepared by the above method under the condition of controlling variables. The original sensitivity data is the measurement data using the traditional sensor probe, and the sensitivity MXene is the measurement data using the MXene-based sensor probe. Figure 4 It can be seen that the sensitivity of MXene-based sensing probes has been greatly improved compared with traditional sensing probes.

[0084] The above describes the preparation method of the MXene-based sensor probe provided in this application. The following describes the MXene-based sensor probe provided in this application:

[0085] See also Figure 3 , Figure 3 An embodiment of a MXene-based sensing probe provided in this application includes:

[0086] A one-to-two bare fiber coupler, a MXene-based fiber sensitive disk, a first Faraday rotator mirror, and a second Faraday rotator mirror; the fiber sensitive disk is connected to the first Faraday rotator mirror; the one-to-two bare fiber coupler is connected to the fiber sensitive disk and the second Faraday rotator mirror respectively.

[0087] In this embodiment, the MXene-based fiber optic sensor disk is fabricated according to the aforementioned preparation method. A two-way bare fiber coupler is used for signal splitting and combining, and two Faraday rotators are used to mitigate polarization attenuation. Compared to traditional bare fiber optic sensor disks, the MXene-based fiber optic sensor disk is more sensitive to external vibrations. This effectively enhances the sensitivity of the sensor probe when used for sensing.

[0088] This application also provides the use of a MXene-based sensor probe as a sensor probe for a Michelson interferometer. Specifically, the MXene-based sensor probe is a MXene-based sensor probe prepared by the above-described preparation method. After the sensor probe is fixedly packaged and connected to the Michelson interferometer, the MXene-based sensor probe can be used for sensing detection during operation of the Michelson interferometer, thereby improving the sensing sensitivity of the Michelson interferometer.

[0089] It should be noted that the above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for preparing a MXene-based sensor probe, characterized in that: The sensor probe preparation method comprises: 1 g of lithium fluoride, 4 mL of water, and 12 mL of concentrated hydrochloric acid were placed in a first centrifuge tube and stirred in an ice bath for 5 minutes; 0.15 g of titanium aluminum carbide was added every 3 minutes for a total of 3 times. After all the titanium aluminum carbide was added, the mixture was stirred in an ice bath for 10 minutes; the mixture was heated and stirred in a 40° C. water bath for 48 hours to obtain an original reaction solution; the original reaction solution was introduced into a second centrifuge tube, hydrochloric acid solution was added, and the mixture was centrifuged and washed to obtain a precipitate; The sediment is refrigerated for 8 to 10 hours; The precipitate after refrigeration was placed in water for ice bath, ultrasonication and centrifugation, and the supernatant was collected to obtain the MXene solution, which was sealed and refrigerated for later use; Winding optical fiber on the optical fiber fixing disk to make a single-layer optical fiber sensitive disk; A predetermined amount of MXene solution is taken, and graphene oxide, cellulose, and zinc sulfate heptahydrate solution are added thereto, followed by ultrasonication and stirring to prepare a mixed solution; The mixed solution is introduced into a self-made template, the single-layer optical fiber sensitive disk is placed, and a prefabricated copper sheet is placed under the self-made template. After the placement is completed, a freeze-drying operation is performed to obtain a freeze-dried MXene-based optical fiber sensitive disk; curing the MXene-based optical fiber sensitive disk to obtain a cured optical fiber sensitive disk; A first Faraday rotator mirror and a one-to-two bare fiber coupler are respectively connected to both ends of the surface of the cured optical fiber sensitive disk, and a second Faraday rotator mirror is connected to the other end of the one-to-two bare fiber coupler to obtain a MXene-based sensing probe.

2. The method for preparing a sensor probe according to claim 1, wherein: The process of centrifugal cleaning comprises: Add hydrochloric acid solution to the second centrifuge tube after the original reaction solution is introduced, centrifuge at 4000 rpm for 5 minutes, discard the supernatant, continue to add hydrochloric acid solution, and repeat the above steps three times; An aqueous solution was added to the centrifuge tube and washed with water three times.

3. The method for preparing a sensor probe according to claim 2, wherein: The hydrochloric acid solution is a hydrochloric acid solution with a concentration of 18.5%.

4. The method for preparing a sensor probe according to claim 1, wherein: The step of placing the refrigerated precipitate in water for ice bathing, ultrasonication and centrifugation comprises: The refrigerated precipitate was placed in 120-150 mL of aqueous solution, subjected to ice bath ultrasound for 40 min, and then centrifuged at 4000 rpm for 5 min.

5. The method for preparing a sensor probe according to any one of claims 1 to 4, characterized in that: The capacity of the MXene solution is 15 mL, the capacity of the graphene oxide is 120 mg, the capacity of the cellulose is 150 mg to 200 mg, and the capacity of the zinc sulfate heptahydrate solution is 0.12 mL.

6. The method for preparing a sensor probe according to any one of claims 1 to 4, characterized in that: The inner ring radius of the single-layer optical fiber sensitive disk is 3.2 cm, and the outer ring radius is 5.8 cm.

7. A MXene-based sensing probe, characterized in that: The sensor probe is prepared according to the sensor probe preparation method according to any one of claims 1 to 6, and the sensor probe comprises: One-to-two bare fiber coupler, MXene-based fiber sensitive disk, first Faraday rotator mirror, and second Faraday rotator mirror; The optical fiber sensitive disk is connected to the first Faraday rotator mirror; The one-to-two bare fiber coupler is connected to the optical fiber sensitive disk and the second Faraday rotation mirror respectively.

8. Application of a MXene-based sensing probe as a sensing probe of a Michelson interferometer, characterized in that: include: The MXene-based sensing probe is the MXene-based sensing probe according to claim 7.

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