氧化石墨烯基水凝胶对丁基黄药的吸附性能及作用机理研究  

Study on the Adsorption Performance and Mechanisms of Graphene Oxide Based Hydrogel for Butyl Xanthate

作　　者：张鹏羽 刘登 何成浩 李洪强 陈骞 ZHANG Pengyu;LIU Deng;HE Chenghao;LI Hongqiang;CHEN Qian(Zhongye Changtian International Engineering Co.,Ltd.,Changsha 410205,China;Hubei Chulong Mining Co.,Ltd.,Jingmen 448000,China;School of Resource and Safety Engineering,Wuhan Institute of Technology,Wuhan 430000,China)

机构地区：[1]中冶长天国际工程有限责任公司,湖南长沙410205 [2]湖北楚龙矿业有限公司,湖北荆门448000 [3]武汉工程大学资源与安全工程学院,湖北武汉430000

出　　处：《金属矿山》2025年第2期233-239,共7页Metal Mine

基　　金：国家自然科学基金面上项目(编号:51974205)。

摘　　要：氧化石墨烯因独特的层状结构和富氧官能团而在污水处理方面展现出广阔的应用前景。研究在制备铅离子改性氧化石墨烯基水凝胶(Lead(Pb^(2+))-modified graphene oxide hydrogel,PGP)基础上,探究了其对含丁基黄药选矿废水的吸附效果。试验结果表明:在PGP投加量0.4 g/L、丁基黄药浓度100 mg/L、溶液pH=10、温度25℃的条件下,PGP对丁基黄药的最大吸附量为170.0 mg/g,去除率为68.0%;PGP对丁基黄药的吸附行为符合拟二级吸附动力学模型和Langmuir等温吸附模型,PGP主要通过表面活性位点与丁基黄药生成Pb(C_(4)H_(9)OCS_(2))_(2),实现单分子层化学吸附。Graphene oxide has shown broad application prospects in wastewater treatment due to its unique layered structure and oxygen-rich functional groups.Based on the preparation of Lead(Pb^(2+))-modified graphene oxide hydrogel(PGP),its adsorption effect on butyl xanthate-containing beneficiation wastewater was investigated.The results show that under the conditions of PGP dosage 0.4 g/L,butyl xanthate concentration 100 mg/L,solution pH=10 and temperature 25℃,the maximum adsorption capacity of PGP to butyl xanthate is 170.0 mg/g,and the removal rate is 68.0%.The adsorption behavior of PGP on butyl xanthate conforms to the pseudo-second-order adsorption kinetic model and the Langmuir isothermal adsorption model.PGP mainly forms Pb(C_(4)H_(9)OCS_(2))_(2)with butyl xanthate through surface active sites to achieve monolayer chemical adsorption.

关 键 词：氧化石墨烯水凝胶 丁基黄药 吸附动力学 吸附等温线 吸附机理 

分 类 号：X751[环境科学与工程—环境工程]