Fabrication of magnetic chitosan nanoparticles grafted with β-cyclodextrin as effective adsorbents toward hydroquinol

被引：75

作者：

Fan, Lulu ^{[1
]}

Li, Miao ^{[2
]}

Lv, Zhen ^{[1
]}

Sun, Min ^{[1
]}

Luo, Chuannan ^{[1
]}

Lu, Fuguang ^{[1
]}

Qiu, Huamin ^{[1
]}

机构：

[1] Univ Jinan, Key Lab Chem Sensing & Anal, Shandong Univ, Sch Chem & Chem Engn, Jinan 250022, Peoples R China

[2] Yantai Entry Exit Inspect & Quarantine Bur, Yantai 264000, Peoples R China

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2012年 / 95卷

关键词：

Chitosan; Magnetic; Cyclodextrin; Adsorption; Hydroquinol; AQUEOUS-SOLUTION; ACTIVATED CARBON; P-NITROPHENOL; ADSORPTION; REMOVAL; PHENOL; DYES; SORPTION; COPPER; ACID;

D O I：

10.1016/j.colsurfb.2012.02.007

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The adsorption characteristics of hydroquinol from aqueous solutions onto the beta-cyclodextrin modified magnetic chitosan nanoparticles (CMCN) had been investigated. The characteristics results of FTIR, SEM and XRD showed that CMCN was successfully prepared. The influences of the pH of the solution and the contact time on the adsorption amounts had been discussed, and the appropriate process conditions for the adsorption of hydroquinol had been obtained. Equilibrium experiments fitted well with the Freundlich isotherm model, and the maximum adsorption capacity of the CMCN at 303 K was determined to be 1.75 mmol/g for hydroquinol at the concentration of 9.0 mmol/L, much higher than some conventional adsorbents. The CMCN was stable and easily recovered. Moreover, the adsorption capacity was about 90% of the initial saturation adsorption capacity after being used four times. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：42 / 49

页数：8

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