文献类型：期刊文献

英文题名：Rapid Ferric Transformation by Reductive Dissolution of Schwertmannite for Highly Efficient Catalytic Degradation of Rhodamine B

作者：Ran, Jingyu Yu, Bo

第一作者：冉景榆

通信作者：Ran, JY[1]

机构：[1]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Tianjin 300072, Peoples R China

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2018

卷号：11

期号：7

外文期刊名：MATERIALS

收录：;EI(收录号：20182805538221);Scopus(收录号：2-s2.0-85049654267);WOS:【SCI-EXPANDED(收录号:WOS:000442117300116)】；

基金：This work was supported by the Guizhou Province Science and Technology Department- Guizhou Institute of Technology Joint Fund (Guizhou Science and Technology Agency LH [2015] 7097).

语种：英文

外文关键词：ferric transformation; reductive dissolution; schwertmannite; heterogeneous

摘要：In this study, reductive dissolution of iron oxides was considered for the acceleration of the transformation from Fe(III) to Fe(II) to improve the degradation of rhodamine B (RhB) by potassium persulfate (PS) activation on schwertmannite. The addition of hydroxylamine (HA) showed an enhancement effect on the degradation at pH 3 and 5, but insignificant efficiency of the addition was obtained at pH 9. The surface reduction from Fe(III)-OH to Fe(II)-OH by HA was considered dominant for the acceleration of PS activation through the reductive dissolution process, and the hydroxyl and sulfate radicals generated by the decomposition of surface complexes were main primary reactive oxidants that contributed to the degradation of RhB.