Reaction Mechanism between Zn2+ and Diatomite in Preparation of Zn2+/Diatomite Antibacterial Agent
The reaction mechanism between Zn2+ and diatomite in preparation of Zn2+/diatomite antibacterial agent by diatomite adsorbing and solidifying Zn2+ in its pores was studied. Microporous adsorption, characterized by hydrated Zn2+ adsorbed in the micropores of diatomite, and surface coordinate adsorption, featured with coordination of Zn2+ with functional groups on the surfaces of diatomite, were the main adsorption ways accompanied by ion exchange adsorption and physical adsorption. SEM was used to observe the morphologies of diatomite before and after adsorption. Due to the dehydration between OH groups on the surfaces of diatomite when heat treated at high temperature, Si-O-Zn bonds were formed, combining Zn2+ with diatomite together. Reaction model between Zn2+ and diatomite was established.
diatomite zinc ion microporous adsorption surface coordinate adsorption
Ning Liang Hao Ding Yongteng Hu Baikun Wang
School of Materials Science and Technology, China University of Geosciences (Beijing),No.29 of XueYu School of Materials Science and Technology, China University of Geosciences (Beijing), No.29 of XueY
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
260-263
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）