碳基负载铁钴纳米球活化过硫酸盐降解水中微量药物  

Degradation of the Micro-Medicine in Water by Carbon-Based Loaded Iron-Cobalt Nanosphere Activated Persulfate

作　　者：崔野 CUI Ye(Real Estate Development Corporation Limited of CE20G,Chongqing 400000,China)

机构地区：[1]中铁二十局集团房地产开发有限公司,重庆400000

出　　处：《水处理技术》2023年第11期73-79,共7页Technology of Water Treatment

基　　金：中国铁建·东林道项目海绵城市建设综合技术研究(YF1999FJ01B)。

摘　　要：针对水环境中检出的微量药物问题,通过水热法合成了碳负载铁钴纳米球催化材料(CoFe_(2)O_(4)/C),考察了铁钴比例和热解温度对其催化效能的影响。构建CoFe_(2)O_(4)/C耦合过硫酸盐体系降解水中卡马西平(CBZ),探究了催化剂投加量、初始pH、氧化剂浓度对耦合体系中CBZ降解的影响。机理研究表明,CBZ的降解主要归功于体系中产生的SO_(4)^(·-)、·OH和^(1)O_(2)等强氧化性物质。另外,CoFe_(2)O_(4)/C-PDS耦合体系中催化剂重复使用3次后,30 min内CBZ的去除率仍高达86.05%,表明制备的CoFe_(2)O_(4)/C催化剂具有良好的稳定性,实际应用潜力较强。本研究可为开发绿色高效的水处理技术提供参考。Aiming at the problem of neurodrugs detected in a water environment,carbon-based supported iron-cobalt nanospheres catalytic materials(CoFe_(2)O_(4)/C)catalysts were synthesized by hydrothermal method,and the effects of iron-cobalt ratio and pyrolysis temperature on their catalytic performance were investigated.The CoFe_(2)O_(4)/C coupled PDS system was constructed for the degradation of carbamazepine(CBZ)in water.The effects of catalyst dosage,initial pH,and oxidant concentration on the CBZ degradation in the coupled system were investigated.The mechanism study showed that the degradation of CBZ was mainly attributed to the strong oxidizing substances such as SO_(4)^(·-),•OH,and,^(1)O_(2)produced in the system.In addition,the removal efficiency of CBZ could still reach 86.05%within 30 min after the reused catalysts three times in the CoFe_(2)O_(4)/C-PDS system,indicating that the prepared CoFe_(2)O_(4)/C catalyst had good stability and strong practical application potential.This research could provide a reference for the development of green and efficient water treatment technology.

关 键 词：铁钴催化剂 水处理 药物污染 过硫酸盐 活化机理 

分 类 号：X703.1[环境科学与工程—环境工程]