共 25 条
Adsorption of methylene blue and orange II onto unmodified and surfactant-modified zeolite
被引:193
作者:
Jin, Xiaoying
[1
]
Jiang, Ming-qin
[1
]
Shan, Xaio-quan
[2
]
Pei, Zhi-guo
[2
]
Chen, Zuliang
[1
]
机构:
[1] Fujan Normal Univ, Sch Chem & Mat Sci, Fuzhou 350007, Peoples R China
[2] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China
关键词:
Unmodified and surfactant-modified zeolite;
Adsorption;
Methylene blue;
Orange II;
D O I:
10.1016/j.jcis.2008.08.066
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Adsorption of cationic methylene blue and anionic orange II onto unmodified and surfactant-modified zeolites was studied using a batch equilibration method. The effects of equilibrium time, solution pH, and sorption temperature were examined. The results suggested that 2% sodium dodecyl benzenesulfonate (SDBS)- and 3% sodium dodecyl sulfate (SDS)-modified zeolites had higher adsorption capacities for methylene blue than the unmodified zeolite, while 2% cetylpyridinium bromide hexadecyl (CPB)- and 2% hexadecylammonium bromide (HDTMA)-modified zeolites were the best adsorbents for orange II. The adsorption conditions were optimized, and the mechanisms of adsorption are briefly discussed. (C) 2008 Elsevier Inc. All rights reserved.
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页码:243 / 247
页数:5
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