Photoactivation preparation method for nano-AgCl/Ag visible-light catalyst
A catalyst, visible light technology, applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of difficult to achieve multiple recycling of catalysts, low effective utilization of solar energy, and easy damage to operators. problem, to achieve good application prospects, simple method, short time effect
Inactive Publication Date: 2012-05-09
TONGHUA NORMAL UNIV
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The invention belongs to the technical field of sewage treatment, specifically relates to a preparation method for a high activity catalyst with visible-light response ability, and an application of the catalyst in degradation of organic dyes. According to the preparation method, AgCl nanoparticles are firstly prepared in an ethylene glycol solvent with an assistant effect of polyvinylpyrrolidone; then the partial AgCl is subjected to photoreduction to form Ag nanoparticles by illumination so as to obtain the nano-AgCl/Ag composite photocatalyst. According to the present invention, the preparation method has characteristics of simpleness, fastness, mild conditions and high yield; the prepared product has high catalytic efficiency and strong light corrosion resistance, and still maintains the high catalytic activity after repeatedly using the product six times; the catalyst of the present invention does not require the special light source, and can performs the catalytic operation under sunlight or ordinary sunlight lamp simulating the sunlight, and the degraded products are CO2 and H2O, such that the catalytic operation has characteristics of simpleness, no toxic and side-effect, and short time, wherein the 100% degradation of the organic dye can be completed in 15-30 minutes.
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