Catalytic oxidation of low concentration formaldehyde over Pt/TiO_(2) catalyst
Catalytic oxidation of low concentration formaldehyde over Pt/TiO2 catalyst作者机构：State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China State Key Laboratory of Heavy Oil ProcessingChina University of PetroleumBeijing 102249China
出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)
年 卷 期：2021年第34卷第1期
页 面：190-195页
核心收录：
学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：Catalyst support Catalysis Fixed-bed Pt/TiO_(2)
摘 要：Formaldehyde(HCHO) is an important indoor *** oxidize low concentration HCHO is an effective way to eliminate indoor *** this study,a series of Pt/TiO_(2) catalysts are prepared by impregnation and reduced by NaBH_*** effects of loading amount of Pt and cry stal type of TiO_(2) on the physical and chemical properties and the catalytic performance in HCHO oxidation reaction are *** results show that the quantity of active site and the oxygen vacancy of catalysts increa sed with increasing Pt content,which is beneficial to promote the further performance of ***,with the further rises of Pt content,the specific surface area further decreases,and the proportion of Pt^(2+) species on the catalyst surface which is significant to catalytic properties also decreases,causing catalytic performance *** with the catalyst supporting on rutile,the Pt/α-TiO_(2) catalyst supporting on anatase has larger specific surface area,more Pt^(2+) phase and easier to form oxygen vacancy in the support,which cause better catalytic *** catalyst with Pt content of0.1 wt% and supported by anatase TiO_(2) has the best catalytic *** HCHO conversion efficiency reaches 98% and 100% at 50℃ and 100 ℃, and the stabilization time is longer than 140 h.
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