电辅助下非晶态Co-Ni-Fe对五氯苯酚的加氢脱氯  

Hydrodechlorination of pentachlorophenol by amorphous alloys Co-Ni-Fe with electrical assistance

作　　者：王颖 王淑娴 孙天宇 申伟 崔春月 Wang Ying;Wang Shuxian;Sun Tianyu;Shen Wei;Cui Chunyue(Qingdao Engineering Research Center for Rural Environment,College of Resource and Environment,Qingdao Agricultural University,Qingdao 266109,China)

机构地区：[1]青岛农业大学资源与环境学院,青岛市农村环境工程研究中心,山东青岛266109

出　　处：《工业水处理》2021年第3期48-52,共5页Industrial Water Treatment

基　　金：国家自然基金(51678323);山东省自然科学基金(ZR2017MEE013)。

摘　　要：采用化学还原法制备了非晶态Co-Ni-Fe三元催化剂,通过改变金属盐的比例制得不同Co含量的复合催化剂。分析了催化剂的特征,并在电辅助体系下考察了对五氯苯酚(PCP)的催化加氢脱氯性能。结果表明,Ni-Fe催化剂中,Co的引入有效地提高了水中PCP的加氢脱氯效率。当Co、Ni、Fe物质的量比为0.5∶0.5∶9,电位为-0.2 V,硫酸浓度为0.2 mol/L,催化剂投加量为4 g/L时,脱氯率达到90%。从产物分析可知,PCP最终完全脱氯为苯酚。Amorphous Co-Ni-Fe ternary catalysts were prepared by chemical reduction method,and composite catalysts with different Co contents were prepared by changing the ratio of metal salts.The characteristics of the catalyst were analyzed.The catalytic hydrodechlorination performance of pentachlorophenol was investigated under the electrical assistance system.The results showed that in the Ni-Fe catalyst,the introduction of Co effectively improved the hydrodechlorination efficiency of PCP in water.When the molar ratio of Co∶Ni∶Fe was 0.5∶0.5∶9,the potential was-0.2 V,the concentration of H2SO4 was 0.2 mol/L and the catalyst dosage was 4 g/L,the dechlorination efficiency reached 90%.According to product analysis,PCP was finally completely dechlorinated into phenolit.

关 键 词：Co-Ni-Fe 加氢脱氯 电辅助 五氯苯酚 

分 类 号：X703[环境科学与工程—环境工程]