光催化降解室内VOCs的应用探讨
|
摘要
近年来,由于空气污染日益严重以及建筑装修的热潮,导致室内VOCs(挥发性有机化合物)含量较高,危害人体健康。为降低室内污染物浓度,研究了二氧化钛光催化降解室内VOCs的效果,并从光催化的应用前景、试验设计、不同元素掺杂P25后的测试结果、光催化的影响因素以及性能评价指标等方面,来探讨提高光催化效率的方法,同时对光催化的评价与实际应用做出展望。得出银掺杂P25后会有较好的催化效果,采用一次通过率来评价光触媒的性能更全面。
In recent years, it has a higher content of indoor VOCs(volatile organic compounds) so that endangering human health due to the increasingly serious air pollution and building decoration of the boom. In order to reduce the concentration of indoor pollutants, the effect of titanium dioxide photocatalytic degradation of indoor VOCs was studied in this paper. The methods of improving the photocatalytic efficiency were discussed from the aspects of photocatalytic application prospect, experimental design, test results after doping P25, the influence factors of photocatalysis and the evaluation indexes of performance. At the same time, it makes a prospect by the evaluation of photocatalysis and practical application. It is concluded that the silver is doped to P25 which will have a better catalytic effect. And the performance of the photocatalyst will be more comprehensive by using the passing rate at once.
In recent years, it has a higher content of indoor VOCs(volatile organic compounds) so that endangering human health due to the increasingly serious air pollution and building decoration of the boom. In order to reduce the concentration of indoor pollutants, the effect of titanium dioxide photocatalytic degradation of indoor VOCs was studied in this paper. The methods of improving the photocatalytic efficiency were discussed from the aspects of photocatalytic application prospect, experimental design, test results after doping P25, the influence factors of photocatalysis and the evaluation indexes of performance. At the same time, it makes a prospect by the evaluation of photocatalysis and practical application. It is concluded that the silver is doped to P25 which will have a better catalytic effect. And the performance of the photocatalyst will be more comprehensive by using the passing rate at once.
引文
[1]孙松.TiO2基光催化剂的制备、结构及光催化降解VOCs性能与机理研究[D].合肥:中国科学技术大学,2010.
[2]刘鹏,周湘梅.VOC的回收与处理技术简介[J].石油化工环境保护,2001,(3):39-42.
[3]郭玉芳,叶代启.废气治理的低温等离子体-催化协同净化技术[J].环境污染治理技术与设备,2003, 4(7):41-46.
[4] Morton R, Bao M, Ackman P, et al. Comparison of Different Biotrickling Filter Technologies For Treating Air from Wastewater Treatment Facilities[J]. Proceedings of the Water Environment Federation, 2004,2004(3):604-619.
[5] Den W, Huang C, Li C H. Effects of cross-substrate interaction on biotrickling filtration for the control of VOC emissions[J]. Chemosphere,2004,57(7):0-709.
[6]储方为,邱佳铭,蒋红,李戎.TiO2光触媒纺织品自清洁性能评价方法探究[J].中国纤检,2012,(22):64-69.
[7]张文彬,谢利群,白元峰.纳米TiO2光催化机理及改性研究进展[J].化工科技,2005,13(6):52-57.
[8]宋雪瑞.风道式光催化反应器降解VOCs的实验研究[D].重庆大学,2016.
[9] Hossain M M, Raupp G B, Hay S O, et al.Three-dimensional developing flow model for photocatalytic monolith reactors[J]. AICh E Journal,1999,45(6):1309-1321.
[10] Mo J H, Zhang Y P, Yang R, et al. Influence of fins on formaldehyde removal in annular photocatalytic reactors[J]. Building and Environment, 2008,43:238-245.
[11] GB/T 50325-2010,民用建筑工程室内环境污染控制规范[S].北京:中国建设出版社,2013.
[12]严娜,张军,巨龙,等.光触媒Ti02薄膜的改性方法研究进展[J].中国科技信息,2017,(2):83-84.
[13] Mo J H, Zhang Y P, Xu Q J, et al. Photocatalytic purification of volatile organic compounds in indoor air:A literature review[J]. Atmospheric Environment, 2009,43:2229-2246.
[14]李文彩,鹿院卫,常梦媛,等.反应物流速和湿度对室内污染物甲醛的光催化氧化影响的实验研究[J].太阳能学报,2007,28(1):43-46.
[15]张寅平,张立志,刘晓华,等.建筑环境传质学(第一版)[M].北京:中国建筑工业出版社,2006:268-338.
[16]唐峰.光催化降解室内VOCs相关性研究[D].北京:清华大学,2010.
[17]张寅平,杨瑞,许瑛,等.纳米材料光催化空气净化器空气净化器VOCs降解模型及应用[C].全国暖通空调制冷2002年学术年会论文集,2002:1032-1037.
[2]刘鹏,周湘梅.VOC的回收与处理技术简介[J].石油化工环境保护,2001,(3):39-42.
[3]郭玉芳,叶代启.废气治理的低温等离子体-催化协同净化技术[J].环境污染治理技术与设备,2003, 4(7):41-46.
[4] Morton R, Bao M, Ackman P, et al. Comparison of Different Biotrickling Filter Technologies For Treating Air from Wastewater Treatment Facilities[J]. Proceedings of the Water Environment Federation, 2004,2004(3):604-619.
[5] Den W, Huang C, Li C H. Effects of cross-substrate interaction on biotrickling filtration for the control of VOC emissions[J]. Chemosphere,2004,57(7):0-709.
[6]储方为,邱佳铭,蒋红,李戎.TiO2光触媒纺织品自清洁性能评价方法探究[J].中国纤检,2012,(22):64-69.
[7]张文彬,谢利群,白元峰.纳米TiO2光催化机理及改性研究进展[J].化工科技,2005,13(6):52-57.
[8]宋雪瑞.风道式光催化反应器降解VOCs的实验研究[D].重庆大学,2016.
[9] Hossain M M, Raupp G B, Hay S O, et al.Three-dimensional developing flow model for photocatalytic monolith reactors[J]. AICh E Journal,1999,45(6):1309-1321.
[10] Mo J H, Zhang Y P, Yang R, et al. Influence of fins on formaldehyde removal in annular photocatalytic reactors[J]. Building and Environment, 2008,43:238-245.
[11] GB/T 50325-2010,民用建筑工程室内环境污染控制规范[S].北京:中国建设出版社,2013.
[12]严娜,张军,巨龙,等.光触媒Ti02薄膜的改性方法研究进展[J].中国科技信息,2017,(2):83-84.
[13] Mo J H, Zhang Y P, Xu Q J, et al. Photocatalytic purification of volatile organic compounds in indoor air:A literature review[J]. Atmospheric Environment, 2009,43:2229-2246.
[14]李文彩,鹿院卫,常梦媛,等.反应物流速和湿度对室内污染物甲醛的光催化氧化影响的实验研究[J].太阳能学报,2007,28(1):43-46.
[15]张寅平,张立志,刘晓华,等.建筑环境传质学(第一版)[M].北京:中国建筑工业出版社,2006:268-338.
[16]唐峰.光催化降解室内VOCs相关性研究[D].北京:清华大学,2010.
[17]张寅平,杨瑞,许瑛,等.纳米材料光催化空气净化器空气净化器VOCs降解模型及应用[C].全国暖通空调制冷2002年学术年会论文集,2002:1032-1037.