Adsorption, desorption and condensation of nitrobenzene solution from active carbon: A comparison of two cyclodextrins and two surfactants

被引：41

作者：

Chen, Ming ^{[1
,2
]}

Cui, Lei ^{[1
,2
]}

Li, Chunhui ^{[1
,2
]}

Diao, Guowang ^{[1
,2
]}

机构：

[1] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Peoples R China

[2] Key Lab Environm Mat & Environm Engn Jiangsu Prov, Yangzhou 225002, Jiangsu, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 162卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Hydroxypropyl-beta-cyclodextrin; Nitrobenzene; Adsorption; Desorption; Condensation; Active carbon; Extractants; BETA-CYCLODEXTRIN; POROUS-MEDIA; ENHANCED SOLUBILIZATION; CONTAMINATED SOIL; DEGRADATION; REMOVAL; WATER; PENTACHLOROPHENOL; BIOAVAILABILITY; PHENANTHRENE;

D O I：

10.1016/j.jhazmat.2008.05.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The adsorption of nitrobenzene on active carbon was researched. The experimental results shown the adsorption of nitrobenzene on active carbon can be described by Freundlich's adsorption model. On the other hand, beta-cyclodextrin (beta-CD) and hydroxypropyl-beta-cyclodextrin (HP-beta-CD) can react with nitrobenzene to form inclusion complex, which will enhance the aqueous solubility of nitrobenzene. By using different concentrations of beta-CD and HP-beta-CD as extractants, nitrobenzene on active carbon has been desorbed statically. As a comparison, surfactant CTAB and SDS were also selected as extractants. The desorbing of mechanism has been discussed. The low concentration of NB was effectively condensed by enrichment of active carbon and desorption of HP-beta-CD, HP-beta-CD is regarded as a potential extractant to deal with soil, sediment or active carbon. (C) 2008 Published by Elsevier B.V.

引用

页码：23 / 28

页数：6

共 28 条

[1]

[Anonymous], ENV SCI

[2] Enhanced solubilization and removal of naphthalene and phenanthrene by cyclodextrins from two contaminated soils [J].