气泡的ζ电位  

ζ Potential of air bubble

作　　者：黄斌[1] 王晖[1] 顾帼华[2] 

机构地区：[1]中南大学化学化工学院有色金属资源化学教育部重点实验室,湖南长沙410083 [2]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《应用化工》2014年第1期142-145,147,共5页Applied Chemical Industry

基　　金：国家自然科学基金(51374249)

摘　　要：对气泡ζ电位的测量方法以及纯水中、表面活性剂体系中、电解质体系中气泡ζ电位的测量结果进行综述。研究表明,气泡在纯水中的等电点处于pH 1.5~3.5之间。阴、阳离子型表面活性剂会改变气泡表面的ζ电位,非离子型表面活性剂对ζ电位的影响与其结构和基团有关,当浓度达到临界胶束浓度时,ζ电位不再发生变化。无机电解质对ζ电位的影响与离子在溶液中的存在形式及吸附状态有关,pH对ζ电位的影响主要是通过影响H＋和OH-的吸附量以及溶液中表面活性剂和无机电解质的存在形式来实现。Reviewed the measurement methods of ζ potential of air bubble,and the methods of ζ potential of air bubble in pure water,in surfactant solution and in inorganic electrolyte solution system. Studies have shown that in pure water system isoelectric point pH value is 1. 5 ~ 3. 5,the cationic and anionic surfactants can change ζ potential,and nonionic surfactant can influence ζ potential because of its structure and groups,reaching critical micelle concentration（CMC） all sufactants can not change ζ potential value,the effect of inorganic electrolyte on ζ potential is related to the existing forms and adsorption state of inorganic ions in solution,the impacts of pH include varying adsorption capacity of H＋and OH-and changing the existing forms of surfactants and inorganic electrolyte in solution.

关 键 词：气泡 Ζ电位 电泳 表面活性剂 

分 类 号：TQ013[化学工程] TQ150