文献类型：期刊文献

英文题名：ZnAl2O4/BiPO4 composites as a heterogeneous catalyst for photo-Fenton treatment of textile and pulping wastewater

作者：Tian, Qingwen[1,2] Ran, Miao[1] Fang, Guigan[1,2] Ding, Laibao[1] Pan, Aixiang[1] Shen, Kuizhong[1] Deng, Yongjun[1]

第一作者：Tian, Qingwen;田庆文

通信作者：Fang, Guigan

机构：[1] Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Lab. of Biomass Energy and Material, Jiangsu Province, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Lab. For Biomass Chemical Utilization, Nanjing, 210042, China; [2] Collaborative Innovation Center for High Efficient Processing and Utilization of Forestry Resources, Nanjing Forestry University, Nanjing, 210037, China

年份：2020

卷号：239

外文期刊名：Separation and Purification Technology

收录：EI(收录号：20200408071178);Scopus(收录号：2-s2.0-85078562404)

语种：英文

外文关键词：Aromatic compounds - Heterojunctions - Image enhancement - Irradiation - Photocatalytic activity - Photodegradation - Rate constants - Textiles - Wastewater treatment

摘要：ZnAl2O4/BiPO4 heterostructures were successfully obtained via co-precipitation and hydrothermal method. The photocatalytic efficiency of ZnAl2O4/BiPO4 composites were improved and seriously influenced by the loading content of ZnAl2O4 under UV light. Photocatalytic tests showed that the kinetic constant of 1 wt% ZnAl2O4/BiPO4 composites for methylene blue degradation under UV irradiation were 0.959 h?1, which is 2.47 and 18.10 times as large as that of pure ZnAl2O4 and BiPO4, respectively. The enhanced photocatalytic performance of ZnAl2O4/BiPO4 heterojunctions was ascribed to effective separation of photo-generated electron–hole pairs. The photogenerated holes (h+) and [rad]OH were the primary reactive species in the MB degradation over ZnAl2O4/BiPO4 composites. Photo-Fenton-like reaction was initiated with H2O2 addition, which significantly improved the photocatalytic activity of ZnAl2O4/BiPO4. The CODCr and color removals of textile wastewater over ZnAl2O4/BiPO4/H2O2 under UV irradiation were 76.74% and 83.22%, and the CODCr and color removals of eucalyptus chemimechanical pulp wastewater (ECMPW) over ZnAl2O4/BiPO4/H2O2 under UV irradiation were 73.98% and 84.54%, respectively. This work provides a new insight for constructing efficient flexible heterogeneous photocatalysts for wastewater purification. ? 2020 Elsevier B.V.