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Stephanoporate photocatalysis function composite material for venomousness liquid pollutant cleaning treatment

A functional composite material and purification treatment technology, applied in the direction of physical/chemical process catalyst, light water/sewage treatment, chemical/physical process, etc., can solve the problems of high price, poor processing performance, low adsorption index, etc.

Inactive Publication Date: 2008-07-16
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adsorption index of ACF to organic pollutants in water is very low. Even in the air, when the relative humidity is high, the adsorption capacity of ACF to organic pollutants such as toluene will drop sharply; moreover, ACF is expensive and has poor processability. etc. are insufficient, so suitable carriers are still a problem that needs to be well solved by this technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This embodiment relates to a kind of porous sodium zirconium phosphate / nano-titanium dioxide photocatalytic functional composite material for the purification and treatment of toxic liquid pollutants, including sodium zirconium phosphate and nano-titanium dioxide, and its proportion (percentage by weight) is: sodium zirconium phosphate 80%, nanometer 10% of titanium dioxide, 10% of magnesium dihydrogen phosphate binder, wherein the particle size of nano titanium dioxide is 5nm.

Embodiment 2

[0017] This embodiment relates to a kind of porous sodium zirconium phosphate / nano-titanium dioxide photocatalytic functional composite material for the purification and treatment of toxic liquid pollutants, including sodium zirconium phosphate and nano-titanium dioxide, and its proportion (percentage by weight) is: sodium zirconium phosphate 50%, nanometer Titanium dioxide 30%, magnesium dihydrogen phosphate and sodium phosphate two kinds of binding agents, its addition (percentage by weight) is respectively 15% and 5%. Wherein the particle size of nano titanium dioxide is 20nm.

Embodiment 3

[0019] This embodiment relates to a kind of porous sodium zirconium phosphate / nano-titanium dioxide photocatalytic functional composite material for the purification and treatment of toxic liquid pollutants, including sodium zirconium phosphate and nano-titanium dioxide, and its proportion (percentage by weight) is: sodium zirconium phosphate 65%, nanometer Titanium dioxide 20%, magnesium dihydrogen phosphate and sodium phosphate two kinds of binders, its addition (weight percentage) is respectively 5% and 10%. Wherein the particle size of nano titanium dioxide is 50nm.

[0020] The present invention can be prepared by foam impregnation method, and the specific process steps are as follows:

[0021] (1) take by weighing the oxide compound of K, Na, Mg and make aqueous solution;

[0022] (2) Take by weighing sodium zirconium phosphate, nano-titanium dioxide and alumina powder in proportion and mix uniformly;

[0023] (3) Containing K + 、Na + , Mg 2+ The aqueous solution an...

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Abstract

The invention relates to a porous photo catalytic compound material used for the purification treatment of toxic liquid contaminants, in particular to a porous sodium zirconium phosphate / nano titanium dioxide photo catalytic compound material, which is provided with absorption, decomposition and purification functions, and can quickly separate, high effectively absorb and rapidly decompose such toxic organic contaminants as toluene and phenol under ultraviolet or natural light, and can purify water source through highly effective absorption even without lighting. The compound material has a porous structure, and has the weight percentages of: 50 to 80 percent of sodium zirconium phosphate, 5 to 30 percent of nano titanium dioxide, and 5 to 30 percent of phosphate adhesive; the phosphate adhesive is selected from one or more of aluminum dihydrogen phosphate, magnesium dihydrogen phosphate, potassium phosphate and sodium phosphate; the particle sizes of nano titanium dioxide range between 1nm and 500nm. The compound material can be prepared from such methods as foam immersion.

Description

technical field [0001] The invention relates to a porous sodium zirconium phosphate / nano-titanium dioxide photocatalytic functional composite material for the purification treatment of toxic liquid pollutants, and belongs to the technical fields of environmental protection and toxic pollutant purification treatment. Background technique [0002] In recent years, nano-TiO 2 Photocatalytic technology has also made great progress in the treatment of toxic liquid pollution. Utilizing photocatalysis and using active free radicals to oxidize and decompose liquid pollutants is a simple and efficient method for treating liquid pollutants. Using nano-TiO 2 Under ultraviolet and visible light, free hydroxyl groups (·OH) and active oxygen (·O) with strong oxidative decomposition ability are formed on the surface of the material to decompose the organic substances attached to the surface. However, under the condition of no light or dark light in water, the utilization rate of solar en...

Claims

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Application Information

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IPC IPC(8): B01J27/18B01J21/06C02F1/30
Inventor 储成林董寅生浦跃朴林萍华吴巍
Owner SOUTHEAST UNIV
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