Nanogold particle preparing method
A kind of nano gold and particle technology, applied in the nano field, to achieve the effect of simple process and mild reaction
Inactive Publication Date: 2015-11-18
赵兵
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
There is no report on the preparation of nano-gold with humic substances as stabilizers and reducing agents
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0014] Add 1g of chloroauric acid and 1g of humic substances into 100ml of deionized water, mix and stir evenly, and then irradiate under a 254nm ultraviolet lamp for 1h, wash repeatedly with ethanol and deionized water, centrifuge, and dry to obtain gold nanoparticles.
Embodiment 2
[0016] Add 1g of chloroauric acid and 5g of humic substances into 100ml of deionized water, mix and stir evenly, and then irradiate under a 254nm ultraviolet lamp for 6h, wash repeatedly with ethanol and deionized water, centrifuge, and dry to obtain gold nanoparticles.
Embodiment 3
[0018] Add 1g of chloroauric acid and 10g of humic substances into 100ml of deionized water, mix and stir evenly, and then irradiate under a 254nm ultraviolet lamp for 12h, wash repeatedly with ethanol and deionized water, centrifuge, and dry to obtain gold nanoparticles.
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Abstract
The invention relates to a nanogold particle preparing method. The method includes the steps that humus is added to a chloroauric acid solution to be mixed and stirred evenly, then the mixture is irradiated for 1-12 h through a 254nm ultraviolet lamp and is repeatedly cleaned with ethyl alcohol and deionized water, and nanogold particles are obtained after centrifugal treatment and drying treatment. Under microwave irradiation, nanogold colloid is prepared rapidly with chloroauric acid as a gold source, water as a solvent and the humus as a photosensitizer, a stabilizer and a reducing agent and without other reducing agents. The nanogold particle preparing method has the advantages of the simple process, moderate reaction, environmental friendliness and the like.
Description
technical field [0001] The invention belongs to the field of nanometers, in particular to a method for preparing nanometer gold particles. Background technique [0002] In recent years, nanotechnology has become a cutting-edge technology among various disciplines such as physics, chemistry, biology, medicine, and material science. It has attracted the attention of researchers because of its immeasurable impact on energy, medicine, electronics, and aviation industries. . Metal nanoparticles have aroused great interest due to their unique physical, chemical, optical, electrical, magnetic, thermal, biological and other properties. Metal nanoparticles, especially gold nanoparticles, have great potential application value in many fields. Such as sensing technology, optical devices, catalysis, biomarkers, drug delivery and cancer therapy, etc. [0003] The traditional preparation of gold nanoparticles can be divided into physical and chemical methods. The physical method has hi...
Claims
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IPC IPC(8): B22F9/24
Inventor 赵兵
Owner 赵兵