负载型贵金属催化剂用于室温催化氧化甲醛和室内空气净化  

Review of noble metal catalysts for the oxidation of formaldehyde and air purification in indoor environment at room temperature

作　　者：张长斌[1] 贺泓[1] 王莲[1] 姜风 邢焕 赵倩 暴伟[3] 

机构地区：[1]中国科学院生态环境研究中心,北京100085 [2]北京亚都空气污染治理技术有限责任公司,北京102206 [3]北京新奥集团有限公司,北京100029

出　　处：《科学通报》2009年第3期278-286,共9页Chinese Science Bulletin

基　　金：国家科技支撑计划绿色奥运科技专项(编号:2007BAK12B12);国家自然科学基金(批准号:20607029);国家高技术研究发展计划(编号:2007AA061402);中国科学院优秀博士学位论文获得者科研启动专项资金资助项目

摘　　要：随着室内空气污染状况受到日益关注,许多研究者开始致力于开发高效、安全、经济的室内空气净化材料和技术.本文介绍了我们研究室内甲醛净化催化剂的过程,比较了室温下负载型贵金属催化剂利用空气中的氧气完全氧化甲醛的性能,阐述了Pt/TiO2催化剂的高效活性本质,明确了贵金属催化剂上催化氧化甲醛的反应机理.应用研究方面,建立了成型催化剂和甲醛净化组件的制备生产工艺,研发了新型空气净化器和通风管道内应用的净化机.上述两种产品实现了高效、安全和经济的室内甲醛净化,已经供应市场并应用于2008年北京奥运会部分室内空气质量的保障,为绿色奥运、科技奥运、人文奥运做出了应有的贡献,并将惠及千家万户百姓的生活.With increasing concern on indoor air pollution, many researchers apply themselves to developing the efficient, safe and economic materials and/or techniques for the indoor air purification. In this review, we introduced our recent study on the catalytic oxidation of indoor HCHO. The catalytic activities for the complete oxidation of HCHO over noble metal catalysts with oxygen at room temperature were evaluated. A mechanism for the catalytic oxidation of HCHO over noble metal catalysts was proposed to explain the high activity of Pt/TiO2 at room temperature. The preparation processes of monolith catalyst and catalytic converter for HCHO purification were developed, and the new type air purifiers were designed and manufactured, which can be used in room and ventilating pipe： The air purifiers have been commercialized, and were employed in air purification for the 2008 Olympic Games in Beijing. This work contributed to the Green Olympics, High-tech Olympics and People＇s Olympics, and it will also benefit many people in the future.

关 键 词：室内空气 甲醛 室温催化氧化 贵金属 反应机理 空气净化 北京奥运 

分 类 号：X51[环境科学与工程—环境工程]