化工学报2019，Vol.70Issue(1)：207-213,7.DOI:10.11949/j.issn.0438⁃1157.20180918
rGO-Fe3O4活化过硫酸盐处理酸性红73
Treatment of acid red 73 by persulfate in the presence of rGO-Fe3O4 composite
摘要
Abstract
A reduced graphene oxide nanosheet-iron oxide composite (rGO-Fe3O4) was synthesized by using coprecipitation method, and characterized by using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The rGO-Fe3O4 composite was used as heterogeneous catalyst to activate persulfate (PS) to decolor acid red 73 (AR73). The effects of catalyst dosage, PS concentration, initial pH value and reaction temperature on the decolorization efficiency were investigated. The results showed that 50 mg/L AR73 was totally removed in 10 min at room temperature when the concentrations of rGO-Fe3O4 and PS were both 1.0 g/L. Singlet oxygen was confirmed to be the primary reactive oxygen species by quenching experiment. This study shows that the rGO-Fe3O4 composite is a promising catalyst for activating PS to treat wastewater due to its high activity and easy separation.关键词
还原石墨烯/四氧化三铁/高级氧化/单线态氧/过硫酸钠Key words
reduced graphene/magnetite/advanced oxidation processes/singlet oxygen/persulfate分类
资源环境引用本文复制引用
尹飞,王翠,童少平..rGO-Fe3O4活化过硫酸盐处理酸性红73[J].化工学报,2019,70(1):207-213,7.基金项目
国家自然科学基金项目(21176225) （21176225）
