摘要
制备了Fe2O3-CeO2/生物炭(BC)催化剂,用于活化过硫酸盐(PS)处理有机污染物。考察了各因素对污染物去除效果的影响。结果表明:Fe2O3-CeO2/BC孔结构发达、表面积大,表面存在Fe2+/Fe3+、Ce3+/Ce4+电对和氧空位,利于催化反应;Fe2O3-CeO2和BC有协同作用,最优条件下酸性橙7去除率达80.1%,催化剂重复利用性良好;Fe2O3-CeO2/BC+PS体系pH适用范围宽(4~8),可处理多种有机污染物和实际水体中的污染物,具备一定应用潜力。
A novel catalyst Fe2O3-CeO2/biochar(BC)was synthesized for activating persulfate(PS)to remove organic pollutants.The effects of various factors on the removal of pollutants were investigated.The results showed that the abundant pore structure,high surface area,surface Fe2+/Fe3+,Ce3+/Ce4+redox couples and oxygen vacancies of Fe2O3-CeO2/BC were conducive to the catalytic reaction.There was a synergy between Fe2O3-CeO2 and BC in the catalytic removal process.Under the optimal conditions,the removal rate of acid orange 7 reached 80.1%,and good reusability of the catalyst was achieved.Moreover,the wide pH range of 4-8,treatment of multiple organics and pollutants in ac-tual water showed a certain application potential of Fe2O3-CeO2/BC+PS.
作者
仙光
李乾岗
张光明
阳帆
魏婷
张毅
邹志国
Xian Guang;Li Qiangang;Zhang Guangming;Yang Fan;Wei Ting;Zhang Yi;Zou Zhiguo(School of Environment&Natural Resource,Renmin University of China,Beijing 100872,China;Department of Military Installations,Army Logistics University of PLA,Chongqing 401311,China;Shandong Public Holdings Limited,Jining 277200,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2020年第7期24-28,共5页
Industrial Water Treatment
基金
国家水体污染控制与治理科技重大专项(2018ZX07110003)
山东省重点研发计划(2018CXGC1007)。
