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Zeolite-porous carbon-photocatalyst ternary composite material, preparation method thereof and wastewater treatment device

A composite material and photocatalyst technology, applied in the field of photocatalyst composite material preparation, can solve problems such as unsatisfactory water treatment effect of photocatalyst composite material, and achieve the effects of improving catalytic effect, delaying poisoning and improving utilization efficiency

Active Publication Date: 2019-10-08
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a zeolite-porous carbon-photocatalyst ternary composite material, its preparation method and wastewater treatment device to solve the problem of unsatisfactory water treatment effect of photocatalyst composite materials in the prior art

Method used

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preparation example Construction

[0025] In another typical embodiment of the present application, a preparation method of zeolite-porous carbon-photocatalyst ternary composite material is provided, the preparation method includes: step S1, zeolite powder, photocatalyst sol and biomass-derived carbonaceous The mesophase powder is mixed to form a gel system; step S2, granulating or molding the gel system to obtain a composite molding material; step S3, carbonizing the composite molding material to obtain the zeolite-porous carbon-photocatalyst Ternary composite materials.

[0026] The zeolite, the porous carbon and the photocatalyst are compounded through the above mixing, heat treatment and carbonization, and the preparation method is simple and easy to be popularized industrially. The obtained ternary composite material includes a carrier and a photocatalyst, and the carrier includes composite zeolite and porous carbon; the photocatalyst is loaded on the inner surface and the outer surface of the carrier, bec...

Embodiment 1

[0035] The natural zeolite powder (derived from natural clinoptilolite in Jinyun County, Zhejiang Province), nano-titanium dioxide sol and biomass-derived carbonaceous mesophase powder are uniformly mixed at a weight percentage of 40%, 5%, and 55% to obtain a gel system , wherein the particle size of the zeolite powder and the biomass-derived carbonaceous mesophase powder is 200 mesh; the gel system is granulated by a granulator to obtain a composite molding material;

[0036] In a pure nitrogen atmosphere, the composite molding material was heat-treated at 450° C. for 6 hours to obtain a finished composite material of zeolite-titanium dioxide-porous carbon.

[0037] The obtained composite material was detected by XRD diffraction, and the characteristic peaks of clinoptilolite, anatase crystal form titanium dioxide and rutile crystal form titanium dioxide appeared in the obtained diffraction pattern.

[0038] Put the composite material into the industrial wastewater treatment ...

Embodiment 2

[0040] The natural zeolite powder (derived from natural clinoptilolite in Jinyun County, Zhejiang Province), nano-titanium dioxide sol and biomass-derived carbonaceous mesophase powder are uniformly mixed at a weight percentage of 40%, 5%, and 55% to obtain a gel system , wherein the particle size of the zeolite powder and the biomass-derived carbonaceous mesophase powder is 200 mesh; the gel system is granulated by a granulator to obtain a composite molding material;

[0041] In vacuum, the composite molding material is heat-treated at 800° C. for 2 hours to obtain a finished composite material of zeolite-titanium dioxide-porous carbon.

[0042] The obtained composite material was detected by XRD diffraction, and the characteristic peaks of clinoptilolite, anatase crystal form titanium dioxide and rutile crystal form titanium dioxide appeared in the obtained diffraction pattern.

[0043] Put the composite material into the industrial wastewater treatment device, in which the ...

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Abstract

The invention provides a zeolite-porous carbon-photocatalyst ternary composite material and a preparation method thereof. The ternary composite material comprises a carrier and photocatalysts, whereinthe carrier comprises composite zeolite and porous carbon, and the photocatalysts are loaded on the inner surface and the outer surface of the carrier. The carrier of the zeolite-porous carbon-photocatalyst ternary composite material comprises the zeolite and the porous carbon, and the wastewater treatment effect of the ternary composite material is improved by the aid of the composite zeolite serving as a carrier. The carrier of the ternary composite material is a porous carrier, so that an adsorption environment is provided for the photocatalysts, the zeolite or the porous carbon functionsin adsorption and filtration, heavy metals are adsorbed, or irons are exchanged, organic matters are intercepted and fixed, microorganisms are adsorbed on the surface of the zeolite or the porous carbon, the intercepted organic matters are degraded and decomposed, photocatalyst nano-particles are prepared into a strong oxidation environment, and all the organic matters in water are decomposed.

Description

technical field [0001] The invention relates to the field of preparation of photocatalyst composite materials, in particular to a zeolite-porous carbon-photocatalyst ternary composite material, a preparation method thereof and a waste water treatment device. Background technique [0002] Photocatalyst is a semiconductor material with excellent performance. It is a promising semiconductor material because of its biological and chemical inertness, light resistance and chemical corrosion. In recent years, photocatalysts have been widely used in water and air pollutant treatment, microbial degradation, inactivation of cancer cells, photolysis of water to generate hydrogen and other fields. Among them, the degradation of methyl orange, benzene and other pollutants in water by photocatalyst photocatalyst is a new type of pollution control technology that has emerged in recent years. When photocatalyst is used as a photocatalyst, it has high catalytic activity, good selectivity, mi...

Claims

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Application Information

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IPC IPC(8): B01J29/18B01J29/70B01J35/00B01J37/08C02F1/30C02F101/20C02F101/16C02F101/30
CPCB01J29/185B01J29/7049B01J37/084B01J37/082C02F1/30B01J2229/20C02F2101/20C02F2101/16C02F2305/10C02F2101/30C02F2209/08B01J35/39
Inventor 赵斌元龙明策刘河洲吕安平
Owner SHANGHAI JIAO TONG UNIV
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