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Method for preparing carbon quantum dots from olive plant essential oil extraction residues

A technology of plant essential oils and carbon quantum dots, applied in chemical instruments and methods, nano-carbon, luminescent materials, etc., can solve the problems of low yield of essential oils of olive plants, achieve high-value utilization, solve waste problems, and quantum The effect of increasing productivity

Pending Publication Date: 2021-11-05
GUANGDONG PHARMA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Essential oils of olive plants are mainly obtained by distillation of olive plants or resins of olive plants, such as: frankincense essential oil and myrrh essential oil are mainly obtained by distillation of frankincense and myrrh, but the yield of olive plant essential oils is usually low, and each Each distillation will leave a large solid residue

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  • Method for preparing carbon quantum dots from olive plant essential oil extraction residues
  • Method for preparing carbon quantum dots from olive plant essential oil extraction residues
  • Method for preparing carbon quantum dots from olive plant essential oil extraction residues

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Experimental program
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Effect test

Embodiment 1

[0045] Prior to this embodiment, the reaction system was investigated in acid solubility Myrrh essential oil extraction residue, the results obtained, acid solubility Myrrh essential oil extraction residue was 16.38%.

[0046] . S1 Myrrh essential oil extraction residue was collected, dried and pulverized to obtain a powder residue myrrh;

[0047] . S2 weigh 1g step S1 myrrh powder residue was added 30mL of water and 4mL of acetic acid was added, stirred for 1h at room temperature to obtain a mixture;

[0048] S3. The resulting mixture was placed in step S2 apparatus 170 ℃ hot water in the hydrothermal reaction, the reaction time of 8h, the resulting product was cooled, filtered, the filtrate was collected and dried using a molecular weight cut-off dialysis tubing 1000Da in distilled water dialyzed 18h, the solution after the dialysis was centrifuged at 8000rpm 15min, the resulting supernatant is the carbon quantum dot solution.

[0049] Quantum dots quantum yield of carbon obtain...

Embodiment 2

[0051] Prior to this embodiment, it investigated the solubility of the acid residue frankincense extract the reaction system, the results obtained, frankincense acid on the solubility of the extracted residue of 0.64%.

[0052] . S1 frankincense extract residue was collected, dried and pulverized to obtain a powder residue frankincense;

[0053] . S2 Step S1 Weigh 0.5g of powder was added to the residue mastic 15mL of water and 2mL acid was added, stirred for 1h at room temperature to obtain a mixture;

[0054] S3. The resulting mixture was placed in step S2 apparatus 200 ℃ hot water in the hydrothermal reaction, the reaction time of 8h, the resulting product was cooled, filtered, the filtrate was collected and dried using a molecular weight cut-off dialysis tubing 1000Da in distilled water dialyzed 18h, the solution after the dialysis was centrifuged at 10000rpm 10min, the resulting supernatant is the carbon quantum dot solution.

[0055] Quantum dots quantum yield of carbon obta...

Embodiment 3

[0057] Prior to this embodiment, the solubility of the reaction system was investigated in the extraction residue of ethylenediamine myrrh oil, results obtained, ethylenediamine solubility Myrrh essential oil extraction residue was 24.48%.

[0058] . S1 Myrrh essential oil extraction residue was collected, dried and pulverized to obtain a powder residue myrrh;

[0059] . S2 Step S1 Weigh 0.5g of residue myrrh powder into 20mL of water and 1mL of ethylenediamine was added, stirred for 2h at room temperature to obtain a mixture;

[0060] S3. The resulting mixture was placed in step S2 apparatus 200 ℃ hot water in the hydrothermal reaction, 9H reaction time, the resulting product was cooled, filtered, the filtrate was collected and dried using a molecular weight cut-off dialysis tubing 1000Da in distilled water dialyzed 36h, the solution after the dialysis was centrifuged at 10000rpm 10min, the resulting supernatant is the carbon quantum dot solution.

[0061] Quantum dots quantum yi...

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Abstract

The invention provides application of olive plant essential oil extraction residues in preparation of carbon quantum dots and a method for preparing the carbon quantum dots from the olive plant essential oil extraction residues. The method provided by the invention not only solves the problem of resource waste of the extraction residues of the olive plant essential oil, but also can realize high-value utilization of the extraction residues of the olive plant essential oil, and has positive effects on economic benefits and environmental protection. The invention provides the method for preparing the carbon quantum dots through a hydrothermal method by taking the olive plant essential oil extraction residues as a carbon source and adding a water-soluble organic solvent into a reaction system, and the quantum yield of the carbon quantum dots can be effectively improved. According to the method, acetic acid is further added into myrrh essential oil extraction residues, the quantum yield of the carbon quantum dots prepared through a hydrothermal method reaches up to 21.68%, and compared with the quantum yield of the carbon quantum dots prepared without adding acetic acid under the same condition, the quantum yield of the carbon quantum dots is improved by 12.91%.

Description

Technical field [0001] The present invention pertains to resource recycling and quantum dots, and in particular, to a method of olive oil extraction plants for the preparation of carbon residue quantum dots. Background technique [0002] Point Carbon, also known as quantum dots carbon, in recent years a relatively new carbon nano fluorescent material, because of its good optical properties are used in many fields of biological imaging, environmental monitoring, chemical analysis. Prepared wide sources of raw materials, such as carbon nanotubes, carbon fiber, graphite rods, and citric acid. Considering the green concept of sustainable development, the plant biomass and so can be used as a carbon source, carbon quantum dots prepared by one-step method or a hydrothermal solvothermal. For example: wood flour Done after processing, the resulting xylose as a carbon source, the biomass carbon prepared quantum dots may be on the water contaminants photocatalytic degradation of organic dy...

Claims

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Application Information

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IPC IPC(8): C01B32/15C09K11/65
CPCC01B32/15C09K11/65
Inventor 黄超黄忠英胡勇高静吴沂李志璇
Owner GUANGDONG PHARMA UNIV
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