摘要
采用电吸附法去除水中的离子型表面活性CTAB,利用全自动表面张力仪测定了CTAB的CMC值,研究了电压、支持电解质、pH及初始浓度等因素对CTAB去除率的影响.结果表明,CTAB的CMC值为180 mg/L;适当增大电压,有助于提高去除速率,缩短平衡时间,且平衡时的去除率也相应增大,最佳吸附电压为2.5 V;去除率随支持电解质浓度及pH值的升高而升高,随初始浓度的升高而降低.电吸附法可有效去除水中的离子型表面活性剂CTAB,为水中表面活性剂的处理提供了一种新思路.
The removal of CTAB from water by electrosorption was studied.The CMC value of CTAB was measured by automatic surface tension meter.The effects of voltage,supporting electrolyte,pH and initial concentration on the removal rate of CTAB were studied.The results showed that the CMC value of CTAB was 180 mg/L;The optimum adsorption voltage was 2.5 V;The removal rate increased with the increase of supporting electrolyte concentration and pH value,and decreased with the increase of initial concentration.electrosorption method can effectively remove CTAB from water,which provides a new idea for the treatment of surfactant in water.
作者
杨志
高云涛
熊华斌
李文义
李晓芬
YANG Zhi;GAO Yun-tao;XIONG Hua-bin;LI Wen-yi;LI Xiao-fen(School of Chemistry&Environment,Yunnan Minzu University,Kunming 650500,China;Key Laboratory of Chemistry in Ethnic Medicinal Resources,State Ethnic Affairs Commission and Ministry of Education,Yunnan Minzu University,Kunming 650500,China)
出处
《云南民族大学学报（自然科学版）》
CAS
2021年第5期515-518,共4页
Journal of Yunnan Minzu University:Natural Sciences Edition
基金
云南省应用基础研究青年项目(2017FD117).
