Experimental Study on the Adsorption of pH-responsive Emulsifier on Silica Nanoparticles
An experimental study on the adsorption of a pH-responsive emulsifier from an aqueous solution on the surface of a non-porous silicon dioxide nanoparticles,as an alternative way for the preparation of a nanocomposite emulsifier.The adsorption isotherm was generated experimentally and the adsorption ca-pacity of nanoparticles was examined under variable conditions of temperature,background electrolyte,pH as well as the accompanied surface charges during the adsorption process.A type Ⅱ adsorption pat-tern was observed,which indicates the presence of multilayers.The adsorption mechanism was predicted to be an endothermic process that is there was an increase in the adsorption capacity as the temperature was increased.The outcomes reveal the important conditions that will guarantee the most extreme sorp-tion of surfactant aqueous solution on to the surface of nanoparticles for their application as Pickering emulsifiers or pH-responsive nanocomposite emulsifier.
Adsorption nanocomposite surface charge emulsifiers nanoparticles electrolyte
Foster Dodzi Gomado Yanling Wang Kobina Forson Augustus Owusu-Boadi Chuanbao Zhang
School of Petroleum Engineering,China University of Petroleum(East China),Qingdao,Shandong,266580,China
国内会议
青岛
英文
23-31
2018-06-20（万方平台首次上网日期，不代表论文的发表时间）