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Preparation method of CuO-Cu2O/CM nanowire array heterostructure and application

A technology of nanowire arrays and heterogeneous structures, applied in measuring devices, material analysis through optical means, instruments, etc., can solve expensive and time-consuming problems, achieve low detection limits, good detection stability, and good stability Effect

Pending Publication Date: 2020-02-28
QUFU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Despite great efforts to accurately and sensitively determine PSA, expensive equipment or time-consuming procedures remain drawbacks of these methods

Method used

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  • Preparation method of CuO-Cu2O/CM nanowire array heterostructure and application
  • Preparation method of CuO-Cu2O/CM nanowire array heterostructure and application
  • Preparation method of CuO-Cu2O/CM nanowire array heterostructure and application

Examples

Experimental program
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Effect test

Embodiment 1

[0034] (1) Dissolve 3.2g NaOH and 0.91g ammonium persulfate in 25mL deionized water respectively, mix NaOH solution and ammonium persulfate solution, and stir for 5 minutes to obtain a clear solution; place the pretreated copper grid in the above clear solution Soak in medium for 20 minutes; take out the sample, wash with deionized water and ethanol respectively, and air-dry at 60°C to obtain Cu(OH) 2 precursor.

[0035] (2) The Cu(OH) prepared in step (1) 2 The precursors were calcined at 350 °C for 15 min in air. Take out the copper grid, and finally the obtained sample (CuO-Cu 2 O / CM) were washed several times with deionized water and dried in air.

Embodiment 2

[0037] (1) Dissolve 3.5g NaOH and 1.0g ammonium persulfate in 20mL deionized water respectively, mix NaOH solution and ammonium persulfate solution, and stir for 10 minutes to obtain a clear solution; place the pretreated copper grid in the above clear solution Soak in medium for 25 minutes; take out the sample, wash with deionized water and ethanol respectively, and air-dry at 60°C to obtain Cu(OH) 2 precursor.

[0038] (2) The Cu(OH) prepared in step (1) 2 The precursors were calcined at 350 °C for 20 min in air. Take out the copper grid, and finally the obtained sample (CuO-Cu 2 O / CM) were washed several times with deionized water and dried in air.

Embodiment 3

[0040] (1) Dissolve 3.3g NaOH and 0.95g ammonium persulfate in 23mL deionized water respectively, mix NaOH solution and ammonium persulfate solution, and stir for 8 minutes to obtain a clear solution; place the pretreated copper grid in the above clear solution Soak in medium for 23 minutes; take out the sample, wash with deionized water and ethanol respectively, and air-dry at 60°C to obtain Cu(OH) 2 precursor.

[0041] (2) The Cu(OH) prepared in step (1) 2 The precursors were calcined at 350 °C for 18 min in air. Take out the copper grid, and finally the obtained sample (CuO-Cu 2 O / CM) were washed several times with deionized water and dried in air.

[0042] photoelectrochemical biosensor

[0043] The photoelectrochemical biosensor of the present invention comprises a working electrode connected to an electrochemical workstation, a reference electrode (Ag|AgCl|Cl - ), the counter electrode (platinum electrode), using a xenon lamp as a simulated light source, the working...

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Abstract

The invention belongs to the technical field of new nano materials, and particularly relates to a preparation method of a CuO-Cu2O / CM nanowire array heterostructure and an application. The preparationmethod comprises the steps: mixing and stirring a NaOH solution and an ammonium persulfate solution to obtain a clear solution, placing a pretreated copper net in the mixed solution to be subjected to a soaking reaction, washing a product with distilled water, and then performing air drying to obtain a Cu(OH)2 precursor; placing the obtained Cu(OH)2 precursor in a tubular furnace, and performingcalcining to obtain a CuO-Cu2O / CM nanowire array. The nanowire array prepared by the invention has the advantages of large surface area, high active site density, good stability, high catalytic efficiency and the like, and is beneficial to generating a PEC signal.

Description

technical field [0001] The invention belongs to the technical field of new nanometer materials, in particular to a CuO-Cu 2 Preparation method and application of O / CM nanowire array heterostructure. Background technique [0002] The detection of tumor markers is of great significance for early clinical diagnosis and subsequent cancer recurrence. Prostate-specific antigen (PSA) secreted by prostate epithelial cells is considered a classic biomarker for screening prostate cancer, one of the most common malignancies in men. It is well established that although a threshold level of 4 ng / mL is commonly found in cancer patients, PSA is usually within the threshold to 10 ng / mL range. Therefore, there is a great need for an effective method to achieve sensitive detection of PSA. To date, many techniques have been employed for quantitative detection of PSA, such as fluorescent immunoassay, electrochemiluminescence, colorimetric immunoassay. and electrochemical methods. Despite g...

Claims

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Application Information

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IPC IPC(8): G01N21/17G01N27/327
CPCG01N21/17G01N27/3278
Inventor 渠凤丽李晓萌李钦夏莲张梦颖
Owner QUFU NORMAL UNIV
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