Photocatalysis: A novel approach to efficient demulsification
Photocatalysis: A novel approach to efficient demulsification
复制标题
光催化：一种高效破乳的新方法
DOI：
10.1016/j.catcom.2015.12.008
复制
发表时间：
2016-02-05
影响因子：
3.7
通讯作者：
Wu, Hongjun
中科院分区：
文献类型：
--
作者：
Wang, Baohui;Gu, Di;Wu, Hongjun
为了开发一种直接破乳分离水包油型乳状液的方法，利用乳化和破乳理论，对光催化破乳进行了研究。通过静态沉降和静态重力沉降对这一现象进行了系统的研究。结果表明，破乳效果与破乳剂的破乳率直接相关。从理论和实验两个方面证实了光催化作用和破乳效果的增强作用，并将其归因于光生电荷、自取向纳米TiO2的再分布以及光照下油水界面膜内乳化剂的光催化氧化。提出了经典破乳过程的扩展，并将其有效地转变为一种实用的破乳新过程。(C)2015 Elsevier B.V.版权所有。
Using the theories of photocatalysis and emulsification, photocatalytic demulsification was introduced and studied for developing a direct method for destabilization and separation of oil-in-water emulsion. This was systematically investigated by photocatalysis and quiescent gravitational settling. The results demonstrated that the high demulsification efficiency directly correlated with photocatalysis. The photocatalytic effect and demulsifying enhancement have theoretically and experimentally been displayed and attributed to photocharge generation, redistribution of the self-oriented nano-TiO2, and photocatalytic oxidation of emulsifiers inside oil water interface film under illumination. The extension of the classical photocatalysis is presented and effectively shifted to a novel process for practical demulsification. (C) 2015 Elsevier B.V. All rights reserved.