化工新型材料

化工新型材料 ›› 2020, Vol. 48 ›› Issue (7) : 196-200. DOI: 10.19817/j.cnki.issn 1006-3536.2020.07.045

科学研究

暴露{101}晶面的锐钛矿型TiO₂光热协同催化降解苯的性能研究

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Photothermocatalysis of anatase TiO₂ with exposed {101} facet for benzene degradation

Ren Lu¹, Mao Mingyang², Jiang Ke³

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Received		Published
2020-01-02		2020-07-20
Issue Date	Revised Date
2022-11-01	2020-01-02

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摘要

讨论了温度对暴露{101}晶面锐钛矿型TiO₂光催化性能的影响,测定了热催化性能,对比了锐钛矿型TiO₂{101}晶面和{001}晶面的光催化和光热协同催化性能。结果表明:暴露{101}晶面的锐钛矿型TiO₂随着反应温度的升高,光催化降解苯的效率越高。光催化反应和热催化反应之间存在着协同效应。光热协同催化降解苯的CO₂本征生成速率较光催化提升了7.19倍。锐钛矿型TiO₂{101}晶面比{001}晶面具有更高的光催化降解苯的活性,较低的光热协同活性。

Abstract

Anatase TiO₂ with exposed {101} facets was discussed in the influence of temperature to the photocatalysis.The thermocatalysis for benzene degradation was tested.The photocatalysis and photothermocatalysis were contrasted between anatase TiO₂ with exposed {101} facets and {001} facets.The results indicated that with the increase of the temperature,the photocatalysis for benzene degradation improved.There was synergetic effect between photocatalysis and thermocatalysis.The CO₂ specific production rate of photothermocatalysis for benzene degradation increased 7.19 times higher than that of photocatalysis.Anatase TiO₂ with exposed {101} facets showed higher photocatalytic activity and lower photothermocatalytic activity for benzene degradation than anatase TiO₂ with exposed {001} facets.

关键词

TiO₂ / 锐钛矿 / 晶面 / 光热协同 / 苯

Key words

TiO₂ / anatase / crystal facet / photothermocatalysis / benzene

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暴露{101}晶面的锐钛矿型TiO₂光热协同催化降解苯的性能研究[J]. 化工新型材料, 2020, 48(7): 196-200 DOI:10.19817/j.cnki.issn 1006-3536.2020.07.045

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