Carbon nanotube and {001}surface TiO2 microsphere composite material photocatalyst

A carbon nanotube, composite material technology, applied in physical/chemical process catalysts, other chemical processes, chemical instruments and methods, etc., can solve the problems of reducing the total removal efficiency of photocatalytic degradation rate, low specific surface area, application limitations, etc. Achieve the effect of broad environmental protection application potential
CN102489283AActive Publication Date: 2012-06-13GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2012-06-13

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Abstract

The invention, belonging to the technical field of adsorption catalysis materials, discloses a carbon nanotube and {001}surface TiO2 microsphere composite material photocatalyst, its preparation method and application. The preparation method comprises the following steps: adding titanium tetrafluoride in water, fully stirring, and then adding nanotubes pretreated by acids, carrying out ultrasonicdispersion, carrying out hydro-thermal reaction in a teflon pot, collecting precipitates in the pot, cleaning in a centrifugal way, and drying to obtain the carbon nanotube and {001}surface TiO2 microsphere composite material photocatalyst. The photocatalyst has strong adsorption properties to volatile organic compounds and strong photocatalytic activity, so as to realize the integration of the absorption and photocatalytic oxidation of the volatile organic compounds, thus hydroxy radicals generated on the surface of the catalyst can be allowed to effectively mineralize and degrade the volatile organic compounds absorbed and gathered by the adsorption material in situ, and the reaction rate and efficiency of the photocatalytic oxidation of organic pollutants are greatly enhanced. The photocatalyst can be applied as an adsorbent or photocatalyst for the field of environmental protection.
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Description

technical field

[0001] The invention belongs to the technical field of adsorption catalytic materials, in particular to a carbon nanotube and {001} surface TiO 2 Microsphere composite photocatalyst material and its preparation method and application in the field of atmospheric environmental protection. Background technique

[0002] Volatile organic compounds have brought us a lot of environmental problems and seriously threatened the safety of human life. More and more physical, chemical and biological technologies are used for the treatment of volatile organic compounds, among which photocatalytic oxidation technology can oxidize volatile organic compounds into CO in the presence of light irradiation and photocatalyst. 2 and H 2 O has received widespread attention. Among many photocatalysts, TiO 2 As a stable photocatalyst, it is used to deal with various environmental problems such as water and air purification problems.

[0003] Both theoretical calculation and exper...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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