三价铜络合物降解萘普生:一种高效的氧化剂  

Degradation of Naproxen by Trivalent Copper Complex:an Efficient Oxidant

作　　者：侯梓峰 陈家斌 吴玮[1] 徐劼 葛丹丹 HOU Zifeng;CHEN Jiabin;WU Wei;XU Jie;GE Dandan(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;School of Environmental Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]苏州科技大学环境科学与工程学院,江苏苏州215009 [2]同济大学环境科学与工程学院,上海200092

出　　处：《水处理技术》2022年第5期95-99,共5页Technology of Water Treatment

基　　金：国家自然科学基金(51878431)。

摘　　要：首次利用三价铜(Cu(Ⅲ))降解非甾体抗炎药萘普生(NPX),探讨了Cu(Ⅲ)降解NPX的影响因素、活性种类及毒性研究。结果表明,pH=7.0,反应5 min时,0.1 mmol/L的Cu(Ⅲ)降解了80%的NPX并且降解率随Cu(Ⅲ)浓度增加而增大;自由基猝灭实验表明体系中Cu(Ⅲ)为主要活性物种;酸性条件下Cu(Ⅲ)难以存在,并且Cu(Ⅲ)特征峰强度随pH的增大而增大;Cl-、HCO_(3)-和HA对NPX的降解无明显影响;体系TOC值随着反应的进行逐渐降低,并且NPX的中间降解产物的急性生物毒性要低于NPX;另外推测Cu(Ⅲ)是一种单电子氧化剂,对具有富含电子结构的污染物具有良好的氧化效果。The non-steroidal anti-inflammatory drug naproxen(NPX)was degraded by Cu(Ⅲ)for the first time.The influence factors,active species and toxicity of Cu(Ⅲ)on the degradation of NPX were investigated.The results showed that 80%of NPX was degraded by 0.1 mmol/L Cu(Ⅲ)on the condition of pH=7.0 for 5 min,and the degradation rate improved with the increase of Cu(Ⅲ)concentration.The free radical quenching experiment showed that Cu(Ⅲ)was the main active species in the system;It was difficult for Cu(Ⅲ)to exist under acidic conditions and the intensity of Cu(Ⅲ)characteristic peak increased with the increase of pH;It was not obviously affected for the degradation of NPX with Cl-,HCO_(3)-and HA;The TOC of the system decreased gradually with the reaction and the acute biotoxicity of intermediate degradation products of NPX was lower than that of NPX.In addition,it was speculated that Cu(Ⅲ)was a single electron oxidant,which could have a promising oxidation effect on pollutants with rich electronic structures.

关 键 词：Cu(Ⅲ) 非甾体抗炎药 萘普生 大肠杆菌 毒性 

分 类 号：TQ031.7[化学工程]