文献类型：期刊文献

英文题名：Highly efficient photo-Fenton degradation of methyl orange facilitated by slow light effect and hierarchical porous structure of Fe2O3-SiO2 photonic crystals

作者：Zhou, Liang[1];Lei, Juying[1];Wang, Lingzhi[2];Liu, Yongdi[1];Zhang, Jinlong[2,3]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Sch Resources & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Adv Mat & Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Suzhou Jukang New Mat Co Ltd Sci & Technol, 558 Fenhu Rd, Suzhou 201211, Peoples R China

年份：2018

卷号：237

起止页码：1160

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20173704164371);WOS:【SCI-EXPANDED(收录号:WOS:000442973700118)】；

基金：This work was financially supported by National Nature Science Foundation of China (21777044, 21407049, 21237003 and 21377038), China Postdoctoral Science Foundation (2015T80409), the Science and Technology Commission of Shanghai Municipality (16JC1401400), and the Science and Technology Commission of Jiangsu Province (BC2015135).

语种：英文

外文关键词：Hierarchical macro-mesoporous; Fe2O3-SiO2 photonic crystal; Slow light effect; H2O2; Photo-Fenton

摘要：In this work, the Fe2O3-SiO2 composite photo-Fenton catalyst was designed and synthesized as a photonic crystal with a hierarchical macro-mesoporous structure, which possesses a slow-light-effect region that overlaps with the absorption spectrum of methyl orange (MO). The prepared material exhibits remarkably high and stable photo-Fenton catalytic performance for the degradation of MO using only a low concentration of H2O2 under visible light irradiation. The catalytic activity of the as-prepared material is better than that of the corresponding macroporous or mesoporous Fe2O3-SiO2 composites as well as commercial Fe2O3 or the homogenous photo Fenton system of FeCl3 center dot 6H(2)O. The efficient use of H2O2 and the high catalytic activity are attributed to (i) the excellent adsorption of MO by the hierarchical macro-mesoporous structure and (ii) enhanced light harvesting from coupling the absorption spectrum of MO with the slow-light-effect region of the photonic crystal. This hierarchical macro-mesoporous Fe2O3-SiO2 photonic crystal is expected to be a promising cost-effective photo Fenton catalyst for degradation of a variety of dyes by deliberately tuning its slow-light-effect region, and opens up new perspectives for the development of highly efficient photo-Fenton catalysts for environmental re mediation technology.