| 光催化降解馆藏文物环境的低浓度NOx和有机酸 |
| |
| 引用本文： | 魏华,修光利,刘兆辅,张大年,徐方圆,吴来明,解玉林.光催化降解馆藏文物环境的低浓度NOx和有机酸[J].环境科学与管理,2009,34(4):113-117. |
| |
| 作者姓名： | 魏华 修光利 刘兆辅 张大年 徐方圆 吴来明 解玉林 |
| |
| 作者单位： | 1. 国家环境保护化工过程环境风险评价与控制重点实验室,上海,200237;华东理工大学资源与环境工程学院,上海,200237
2. 馆藏文物保存环境国家文物局重点科研基地,上海博物馆,上海,200050 |
| |
| 基金项目： | 国家科技部支捧计划，上海市重点学科资助项目 |
| |
| 摘 要： | 馆藏文物环境中氮氧化物和有机酸对文物材料的破坏性很大,净化难度很大。研究了气-固相下光催化耦合净化馆藏文物环境低浓度NOx与有机酸的效果,探讨了动力学过程。实验结果表明：负载型TiO2/γ-Al2O3光催化剂在可见光照条件下对馆藏文物保护环境下的有机酸和NOx都有良好的降解效果,可达到97%以上。净化效率受到初始浓度的影响较大,但在低浓度下NOx和有机酸之间没有明显的竞争抑制作用,光催化反应过程遵循表观一级反应动力学。
|
| 关 键 词： | 文物保护 有机酸 NOx 耦合效应 光催化 |
Photocatalytic Treatment of Low Concentration of Indoor Air Pollutant under Solar Light in Museum |
| |
| Hua Wei,Guangli Xiu,Zhaofu Liu,Danian Zhang,Fangyuan Xu,Laiming Wu,Yulin Xie.Photocatalytic Treatment of Low Concentration of Indoor Air Pollutant under Solar Light in Museum[J].Environmental Science and Management,2009,34(4):113-117. |
| |
| Authors: | Hua Wei Guangli Xiu Zhaofu Liu Danian Zhang Fangyuan Xu Laiming Wu Yulin Xie |
| |
| Institution: | 1.Key Lab for Risk Assessment and Control of Chemical Processes;Ministry of Environmental Protection;Shanghai 200237;P.R.China;2.The Research Laboratory for Conservation and Archaeology;Shanghai Museum;Shanghai 200050;3.School of Resources and Environmental Engineering;East China University of Science & Technology;China |
| |
| Abstract: | Airborne NOx and organic acids have great deteriorate effects on relic conservation, but they are very difficuh to be treated because of their trace concentration, complicated components and strict requirements for purification. A continuous TiO2 gas - solid photo - reactor utilizing visible light was investigated for coupling removal of NOx combined with organic acid, and the kinetic mechanism was also discussed. Results showed that there were good removal efficiency of both NOx and organic acids for the TiO2/γ -Al2O3 photocatalyst illuminated by solar light. The removal efficiency both roached over 97%. The removal efficiency was influenced by initial concentration, but no clear inter - inhibitation effects were observed between NOx and organic acids at ppb level. The photo - catalytic oxidation process of NOx was found to follow first - order reaction. |
| |
| Keywords: | NOx |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
