文献类型：期刊文献

英文题名：The Application of Bi-Doped TiO2 for the Photocatalytic Oxidation of Formaldehyde

作者：Sun, Yiran[1];Feng, Bowen[2];Li, Qianchen[2];Tian, Chengcheng[2];Ma, Liang[2];Li, Zongzhe[2]

机构：[1]Beijing Univ Chem Technol, Beijing Lab Biomed Mat, Beijing 100029, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2022

卷号：57

期号：6

外文期刊名：CRYSTAL RESEARCH AND TECHNOLOGY

收录：;EI(收录号：20221011747378);WOS:【SCI-EXPANDED(收录号:WOS:000765061800001)】；

基金：This work was supported by the sponsorship of the National Key Research and Development Program of China, China (2016YFC0204500), the National Natural Science Foundation of China, China (51608203), and the Fundamental Research Funds for the Central Universities, China.

语种：英文

外文关键词：doping; formaldehyde; photocatalytic oxidation; TiO2; Bi2O3 catalyst

摘要：The photocatalytic oxidation technology has a great potential for the removal of volatile organic compounds (VOCs). In this research, a novel TiO2/Bi2O3 catalyst is developed to degrade indoor formaldehyde by the photocatalytic oxidation technology. The TiO2/Bi2O3 catalysts with different mass fractions of Bismuth(Bi) are prepared by impregnation method. The characterizations of the TiO2/Bi2O3 catalysts by X-ray diffraction (XRD), ultraviolet-visible (UV-vis) spectrophotometry, and Brunauer-Emmett-Teller analyses suggest that the doping of TiO2 with Bi neither changes the crystal structure nor the crystal phase of the TiO2, but increases the number of mesopores on the TiO2/Bi2O3 surface and the specific surface area of the TiO2/Bi2O3. By optimizing such parameters as the flow rate; the concentration; and the relative humidity of formaldehyde, the mass fraction of Bi, and the loading amount of the catalyst, a formaldehyde degradation efficiency as high as 96% is obtained.