Hexagonal tungsten trioxide nanorods as a rapid adsorbent for methylene blue

被引：30
作者：
Wang, Feng
Li, Chuanhao
Yu, Jimmy C. [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2012年 / 91卷
关键词：
Imprinting-adsorption; Methylene blue; Tungsten trioxide; NATURAL ORGANIC-MATTER; WASTE-WATER; AZO-DYE; ADSORPTION; REMOVAL; OXIDE; WO3; CARBON; DESORPTION; NANOTUBES;
D O I：
10.1016/j.seppur.2011.12.001
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Hexagonal tungsten trioxide (WO3) nanorods were prepared from ammonium metatungstate, tetrapropyl ammonium hydroxide and potassium chloride. The product exhibited a high adsorption capacity toward methylene blue (MB), and the time required for reaching adsorption equilibrium is less than 5 s. The amount of MB adsorbed by WO3 in 5 s was equivalent to that adsorbed by activated carbon for 30 min. FTIR and UV-vis spectroscopies were used to examine the interaction between WO3 and MB. Ionic interaction and "imprinting-adsorption" were proposed to explain the adsorption property of as-prepared WO3 sample. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：103 / 107
页数：5
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