|Table of Contents|

Surface Modification of Nanosized TiO2 by Aqueous Anionic Hyperdispersant(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2008年02期
Page:
51-55
Research Field:
Publishing date:

Info

Title:
Surface Modification of Nanosized TiO2 by Aqueous Anionic Hyperdispersant
Author(s):
Wang Wei1; 2; Feng Xiaojian1; 2; Hu Huaguo1
1.School of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China;2.National Key Laboratory of Solid State Microstructure,Nanjing University,Nanjing 210093,China
Keywords:
anion ic;  hyperd ispersant;  nanosized T iO2;  dispersib ility
PACS:
TB383.1
DOI:
-
Abstract:
Nano sized T iO2 w as mod ified by w ater-based an ion ic hype rd ispersant in orde r to obta in steady nanosized T iO2 aqueous suspension. IR, UV, SEM, sedim entation experim ent, v isco sim etryw ere used to character ize the dispe rsibility o f T iO2. The resu lts show ed that the hyperd ispersantw as adso rbed onto theT iO2 surface successfully; the SEM show ed that there w as no agm ina ted mod ified T iO2 particles and the whole average size w as less than 100 nm; the nano sized T iO2 aqueous suspension was very stable at pH va lue 9, them od ified nanosized TiO2 can be steadily suspended for 1 152 h in w ater so lvent, com pa red w ith the pre-m odified T iO2 the dispers ibility w as increased g reatly.

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Last Update: 2013-04-24