Synthesis of citric acid modified β-cyclodextrin/activated carbon hybrid composite and their adsorption properties toward methylene blue

被引：21

作者：

Tang, Kaili ^{[1
]}

Li, Yanhui ^{[1
]}

Zhang, Xiaoping ^{[1
]}

Li, Meixiu ^{[1
,2
]}

Du, Qiuju ^{[1
]}

Li, Hong ^{[1
]}

Wang, Yuqi ^{[1
]}

Wang, Dechang ^{[1
]}

Wang, Cuiping ^{[1
]}

Sui, Kunyan ^{[1
,2
]}

Li, Hongliang ^{[1
,2
]}

Xia, Yanzhi ^{[1
]}

机构：

[1] Qingdao Univ, Coll Mech & Elect Engn, State Key Lab Biofibers & Ecotext, Qingdao 266071, Shandong, Peoples R China

[2] Qingdao Univ, Coll Mat Sci & Engn, 308 Ningxia Rd, Qingdao 266071, Shandong, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2020年 / 137卷 / 04期

基金：

中国国家自然科学基金;

关键词：

activated carbon; adsorption; beta-cyclodextrin; citric acid; methylene blue; ACTIVATED CARBON; AQUEOUS-SOLUTIONS; EFFICIENT REMOVAL; DYE ADSORPTION; CEDAR SAWDUST; BISPHENOL-A; CONGO RED; BASIC DYE; WATER; EQUILIBRIUM;

D O I：

10.1002/app.48315

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this article, citric acid modified beta-cyclodextrin/activated carbon hybrid (CA-beta-CD/AC) composites were synthesized by crosslinking reaction, and their adsorption properties for methylene blue were studied. The scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and Brunauer-Emmett-Teller (BET) method were used to characterize the structure and the morphology of composite materials. It was investigated that the effect of experiment parameters on the adsorption performance including weight fraction of AC in the composite, the adsorbent dose, the initial concentration of MB, the solution pH value, contact time, and temperature. The maximum adsorption capacity calculated by the Langmuir isotherm is 862.07 mg g(-1). Kinetic studies show that the adsorption process follows the pseudo-first-order and pseud-second-order reaction models. Thermodynamic analysis indicated that the adsorption behavior was an exothermic reaction. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48315.

引用

页数：9

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