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Indium sulfide photocatalyst with ultrahigh photocatalytic activity and preparation method and application thereof

A technology of photocatalytic activity and photocatalyst, which is applied in the field of photocatalytic degradation, can solve the problems of low utilization rate of sunlight, toxicity, limited use and the like, and achieves the effect of simple and easy preparation method.

Inactive Publication Date: 2016-10-12
牛和林
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Titanium dioxide was the first semiconductor material discovered and used in photocatalysis. However, due to its low utilization rate of sunlight, other semiconductor materials with narrow band gaps have been continuously excavated, such as nanomaterials such as CdS and CdSe, but Its disadvantages such as toxicity and light corrosion make its use limited

Method used

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  • Indium sulfide photocatalyst with ultrahigh photocatalytic activity and preparation method and application thereof
  • Indium sulfide photocatalyst with ultrahigh photocatalytic activity and preparation method and application thereof
  • Indium sulfide photocatalyst with ultrahigh photocatalytic activity and preparation method and application thereof

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Embodiment 1

[0023] An indium sulfide photocatalyst with ultra-high photocatalytic activity is a three-dimensional porous flower-like structure, in which ultra-thin nano-sheets are interlaced and assembled, and the thickness of the nano-sheets is 5-7nm.

[0024] The preparation method of the above-mentioned ultra-high photocatalytic activity indium sulfide photocatalyst specifically comprises the following steps:

[0025] First add 2mmol In(NO 3 ) 3 .xH 2 Dissolve 0, 6mmol sodium diethyldithiocarbamate in deionized water respectively, stir magnetically until the raw materials are dissolved, slowly add the aqueous solution of sulfur source to the aqueous solution of indium source to form white flocs, continue to stir for 2h, and let it sit for 2h , vacuum filtered and washed several times with water, and dried at a constant temperature of 60°C to obtain a white precursor; weigh 0.4g of the white precursor to the reaction kettle, add deionized water; heat the adjusted solution in an oven a...

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Abstract

The invention discloses an indium sulfide photocatalyst with ultrahigh photocatalytic activity and a preparation method and application thereof, and belongs to the technical field of photocatalytic degradation. Indium sulfide nanometer materials are stimulated by visible light to be used for catalyzing and degrading wastewater. Indium nitrate aquo-complex is used as an indium source, sodium diethyl dithiocarbamate is used as a sulphur source, and a hydrothermal method is adopted for preparing a target product. The indium sulfide photocatalyst has the advantages that the preparation process is simple and easy to operate, reaction conditions are mild, and large-scale production can be achieved; the prepared indium sulfide photocatalyst with ultrahigh photocatalytic activity has high specific area and provides a large number of active sites, and photoproduction electron hole overlapping is restrained. The nanometer material is applied for photocatalytic degradation of methyl orange, the degradation rate within 15 min is 99.6%, and stability is good; the degradation rate can still reach 98.8% after 16 cycles of photocatalytic degradation of methyl orange; the degration rate reaches 90.1% after 60 min of visible light catalytic degradation oxytetracycline.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic degradation in environmental pollution control, in particular to an indium sulfide photocatalyst with ultrahigh photocatalytic activity and a preparation method thereof. Background technique [0002] With the rapid development of industry, agriculture, and commerce, there are more and more environmental problems, and people's requirements for environmental quality are also increasing, so that the development and use of clean energy and the use of light energy to catalyze the degradation of wastewater have received more and more attention. Titanium dioxide was the first semiconductor material discovered and used in photocatalysis. However, due to its low utilization rate of sunlight, other semiconductor materials with narrow band gaps have been continuously excavated, such as nanomaterials such as CdS and CdSe, but Its disadvantages such as toxicity and light corrosion make its use limited. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04B01J35/10C02F1/30C02F101/38
CPCC02F1/30B01J27/04C02F2101/38C02F2305/10B01J35/60B01J35/39Y02W10/37
Inventor 牛和林程洋周心晨陈京帅毛昌杰宋吉明张胜义
Owner 牛和林
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