Silver phosphate/molybdenum disulfide compound visible-light-driven photocatalyst and preparation method thereof

A molybdenum disulfide and photocatalyst technology, applied in the field of photocatalysis, achieves the effects of simple and easy preparation method, shortened photodegradation time and mild reaction conditions

Inactive Publication Date: 2014-02-05
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, there is no research on silver phosphate / molybdenum disulfide composite visible light photocatalyst (hereinafter referred to as Ag 3 PO 4 / MoS 2 Composite visible light photocatalyst) report

Method used

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  • Silver phosphate/molybdenum disulfide compound visible-light-driven photocatalyst and preparation method thereof
  • Silver phosphate/molybdenum disulfide compound visible-light-driven photocatalyst and preparation method thereof
  • Silver phosphate/molybdenum disulfide compound visible-light-driven photocatalyst and preparation method thereof

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Embodiment 1

[0027] a kind of Ag 3 PO 4 / MoS 2 Composite visible light photocatalyst, which is formed by loading silver phosphate on flake molybdenum disulfide, wherein the amount of silver phosphate and molybdenum disulfide is calculated by mass ratio, that is, silver phosphate:molybdenum disulfide is 1.0:0.0088.

[0028] One of the above Ag 3 PO 4 / MoS 2 The preparation method of composite visible light photocatalyst specifically comprises the following steps:

[0029] (1) Preparation of flaky molybdenum disulfide materials by hydrothermal method

[0030] Put 0.8g of ammonium molybdate tetrahydrate and 6.4g of thiourea in a beaker, add 80ml of deionized water and stir to mix evenly, pour it into an autoclave and control the temperature at 200°C for hydrothermal reaction for 24 hours, and filter the obtained reaction solution Finally, the obtained filter cake was vacuum-dried at a controlled temperature of 60 °C to obtain sheet-like MoS 2 ;

[0031] The used ammonium molybdate tet...

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Abstract

The invention discloses a preparation method for a silver phosphate / molybdenum disulfide compound visible-light-driven photocatalyst. The silver phosphate / molybdenum disulfide compound visible-light-driven photocatalyst is formed by loading silver phosphate onto a molybdenum disulfide flaky material, the mass ratio of the silver phosphate and molybdenum disulfide is 1.0:(0.005-0.015). The preparation method comprises steps of firstly preparing the molybdenum disulfide flaky material through a hydrothermal method, then mixing with silver ions so as to obtain a uniform solution, adding phosphate radical ions for stirring and reacting, then filtering, and carrying out vacuum drying on the obtained filter cakes so as to obtain the silver phosphate / molybdenum disulfide compound visible-light-driven photocatalyst. The silver phosphate / molybdenum disulfide compound visible-light-driven photocatalyst has high reactivity when being used for photocatalysis and degradation of organic pollutant rhodamine B, and the preparation method is simple and easy to operate, has low production cost, has no contamination in the production process, and is suitable for industrial scale production.

Description

technical field [0001] The invention belongs to the photocatalytic technology in environmental pollution control, in particular to a silver phosphate / molybdenum disulfide composite visible light photocatalyst with relatively high photocatalytic activity and a preparation method thereof. technical background [0002] Photocatalytic technology has become one of the current research hotspots in solar energy utilization due to its advantages of easy operation, no pollution, and direct use of sunlight. The traditional photocatalyst, titanium dioxide, has attracted widespread attention due to its advantages of non-toxicity, stability, low cost, and good catalytic activity. Due to the wide band gap of titanium dioxide, the photocatalytic activity can only be displayed under the excitation of ultraviolet light less than 400nm, and the available solar energy only accounts for about 4% of the solar energy. Visible light (400-750nm) accounts for 43% of the total energy of sunlight. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/18
Inventor 姚伟峰王佩福钮付涛罗木华洪元琛
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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