帮助 关于我们

返回检索结果

MnO_2基材料常温催化降解甲醛研究进展
Research progress on room-temperature catalytic degradation of formaldehyde over MnO_2- based catalysts

查看参考文献89篇

刘亚茹 1,2,3   黄宇 1,3 *  
文摘 甲醛(HCHO)是室内空气中的主要污染物之一,已被世界卫生组织确定为致癌和致畸形物质,对人体健康构成了极大威胁。常温催化技术在室温下即可将甲醛降解为无毒无害的CO_2和H_2O,能耗低,具有较好的应用前景。二氧化锰(MnO_2)具有价格低廉、环境友好等优势,且晶型种类多,表现出优异的甲醛催化性能,具有较大的实际应用价值而被广泛研究。本文综述了MnO_2基催化剂,包括离子掺杂MnO_2、MnO_2固溶体和负载型MnO_2的甲醛催化活性及其制备方法,并探讨了其活性影响因素、常温催化反应机理,分析了其研究现状及发展趋势。
其他语种文摘 Background, aim, and scope Formaldehyde (HCHO), a potential carcinogen, usually exists at high concentration in indoor air, which poses a serious threat on human health. Therefore, it is essential to explore efficient methods to remove formaldehyde. The catalytic technologies for formaldehyde removal at room temperature can fully degrade formaldehyde with low energy consumption. It is the most promising method to remove indoor formaldehyde. The valence state of Mn element ranges from +2 to +7, and MnO_2 possesses four different crystal phases consisting of unique [MnO_6] octahedral structure, which allows MnO_2-based materials to have excellent low-temperature redox ability. Thus, MnO_2-based materials are the most promising catalysts to degrade HCHO of low concentration at room temperature. It is of great practical significance to review the application of MnO_2-based materials in the catalytical degradation of formaldehyde at room temperature. In this paper, the structure-activity relationship of doped MnO_2, MnO_2 composites and supported MnO_2 at room temperature were discussed in terms of formaldehyde degradation. And the potential application of MnO_2-based materials in the degradation of formaldehyde at room temperature was also discussed. Materials and methods A total of 63 articles were retrieved by WOS (Web of Science) retrieval TS = (HCHO* AND MnO_2) from all databases before 2019-04-03, and more relevant literatures were found through the references, similar literatures and cited literatures of these articles. And the factors affecting the catalytic activity of MnO_2-based materials for HCHO degradation at room temperature and the corresponding catalytic mechanism were summarized based on these articles. The potential research areas for the catalytic removal of formaldehyde at ambient temperature were proposed. Results Among the formaldehyde catalytic materials, the precious metal-based catalysts can convert formaldehyde of high concentration into CO_2 and H_2O at room temperature, while the MnO_2-based materials of the transition metal oxide-based catalysts are abundant and have showed excellent activity for HCHO of low concentration at room temperature. The actual concentration of HCHO in indoor air is relatively low. Discussion At present, more attentions are focused on noble metal materials to remove HCHO at room temperature. However, the precious metal-based catalyst is very expensive, sintering easily and not convenient for industrial application, while MnO_2-based materials possess special structures and strong redox ability. It is most likely to replace precious metals to degrade formaldehyde of low concentration at room temperature. However, the relationship between the activity and structure of MnO_2-based materials in formaldehyde catalysis at room temperature, and its practical application have been rarely reviewed. Conclusions Supported-MnO_2 is expected to completely degrade formaldehyde of low concentration and does have great application prospect in the field of indoor air purification. Recommendations and perspectives (1) MnO_2-based materials combined with AC, PET, ACF and other materials may be more effective and suitable to remove formaldehyde at low concentration in indoor air; (2) The room temperature catalytic activity of MnO_2-based materials for formaldehyde at low concentration in some complex environments with high humidity and other VOCs pollutants still needs to be further investigated.
来源 地球环境学报 ,2020,11(1):14-30 【扩展库】
DOI 10.7515/JEE191003
关键词 MnO_2基催化剂 ; 甲醛降解 ; 常温催化 ; 反应机理 ; 影响因素
地址

1. 中国科学院地球环境研究所, 黄土与第四纪地质国家重点实验室, 西安, 710061  

2. 中国科学院大学, 北京, 100049  

3. 中国科学院气溶胶化学与物理重点实验室, 中国科学院气溶胶化学与物理重点实验室, 西安, 710061

语种 中文
文献类型 综述型
ISSN 1674-9901
学科 行业污染、废物处理与综合利用
文献收藏号 CSCD:6696821

参考文献 共 89 共5页

1.  Akbarzadeh R. Vanadia-titania thin films for photocatalytic degradation of formaldehyde in sunlight. Applied Catalysis A: General,2010,374(1/2):103-109 CSCD被引 12 次    
2.  An N H. Catalytic oxidation of formaldehyde over different silica supported platinum catalysts. Chemical Engineering Journal,2013,215:1-6 CSCD被引 18 次    
3.  Bai B Y. Progress in research on catalysts for catalytic oxidation of formaldehyde. Chinese Journal of Catalysis,2016,37(1):102-122 CSCD被引 49 次    
4.  Bellat J P. Capture of formaldehyde by adsorption on nanoporous materials. Journal of Hazardous Materials,2015,300:711-717 CSCD被引 17 次    
5.  Chen B B. Complete oxidation of formaldehyde at ambient temperature over γ-Al_2O_3 supported Au catalyst. Catalysis Communications,2013,42:93-97 CSCD被引 14 次    
6.  Chen H M. Self-assembly of novel mesoporous manganese oxide nanostructures and their application in oxidative decomposition of formaldehyde. The Journal of Physical Chemistry C,2007,111(49):18033-18038 CSCD被引 28 次    
7.  Chen T. Tunnel structure effect of manganese oxides in complete oxidation of formaldehyde. Microporous and Mesoporous Materials,2009,122(1/2/3):270-274 CSCD被引 25 次    
8.  Chen Y X. Sodium rivals silver as single-atom active centers for catalyzing abatement of formaldehyde. Environmental Science & Technology,2017,51(12):7084-7090 CSCD被引 9 次    
9.  Ching S. Sol-gel synthesis of layered birnessite-type manganese oxides. Inorganic Chemistry,1997,36(5):883-890 CSCD被引 14 次    
10.  Dai Z J. Nanocrystalline MnO_2 on an activated carbon fiber for catalytic formaldehyde removal. RSC Advances,2016,6(99):97022-97029 CSCD被引 10 次    
11.  Devaraj S. Effect of crystallographic structure of MnO_2 on its electrochemical capacitance properties. The Journal of Physical Chemistry C,2008,112(11):4406-4417 CSCD被引 88 次    
12.  Fang R M. Effect of K~+ ions on efficient room-temperature degradation of formaldehyde over MnO_2 catalysts. Catalysis Today,2019,327:154-160 CSCD被引 4 次    
13.  Fang R M. Efficient MnOx supported on coconut shell activated carbon for catalytic oxidation of indoor formaldehyde at room temperature. Chemical Engineering Journal,2018,334:2050-2057 CSCD被引 23 次    
14.  Gao J Y. Activating inert alkali-metal ions by electron transfer from manganese oxide for formaldehyde abatement. Chemistry,2018,24(3):681-689 CSCD被引 1 次    
15.  Giraudet S. Adsorption and electrothermal desorption of volatile organic compounds and siloxanes onto an activated carbon fiber cloth for biogas purification. Energy & Fuels,2014,28(6):3924-3932 CSCD被引 10 次    
16.  Guan S N. A review of the preparation and applications of MnO_2 composites in formaldehyde oxidation. Journal of Industrial and Engineering Chemistry,2018,66:126-140 CSCD被引 13 次    
17.  Hakim M. Volatile organic compounds of lung cancer and possible biochemical pathways. Chemical Reviews,2012,112(11):5949-5966 CSCD被引 30 次    
18.  Huang K L. Indoor air quality analysis of residential buildings in northeast China based on field measurements and longtime monitoring. Building and Environment,2018,144:171-183 CSCD被引 3 次    
19.  Huang S D. Indoor formaldehyde concentrations in urban China: preliminary study of some important influencing factors. Science of the Total Environment,2017,590/591:394-405 CSCD被引 19 次    
20.  Hong Y C. Comparison of catalytic combustion of carbon monoxide and formaldehyde over Au/ZrO_2 catalysts. Catalysis Today,2010,158(3/4):415-422 CSCD被引 6 次    
引证文献 4 篇

1 洪晓梅 临泽红色低品位凹凸棒石黏土负载δ-MnO_2室温降解甲醛 复合材料学报,2022,39(4):1617-1627
CSCD被引 1 次

2 周之琳 低品位褐铁矿尾矿复合催化剂室温下净化甲醛 硅酸盐学报,2023,51(10):2680-2688
CSCD被引 0 次

显示所有4篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护：中国科学院文献情报中心
地址：北京中关村北四环西路33号 邮政编码：100190 联系电话：(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号