Adsorptive removal of phenol from aqueous solution with zeolitic imidazolate framework-67

被引：65

作者：

Pan, Yong ^{[1
]}

Li, Zhi ^{[1
]}

Zhang, Zhe ^{[1
]}

Tong, Xiong-Shi ^{[1
]}

Li, Hai ^{[1
]}

Jia, Chong-Zhi ^{[1
]}

Liu, Bei ^{[1
]}

Sun, Chang Yu ^{[1
]}

Yang, Lan-Ying ^{[1
]}

Chen, Guang-Jin ^{[1
]}

Ma, De-Yun ^{[2
]}

机构：

[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

[2] Zhaoqing Univ, Sch Chem & Chem Engn, Zhaoqing 526061, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2016年 / 169卷

基金：

中国国家自然科学基金;

关键词：

Adsorption; Phenol; Aqueous solution; Removal; Zinc-methylimidazolate framework-67; ACTIVATED CARBON; WATER; RECOVERY; SORPTION; DESIGN; SIZE;

D O I：

10.1016/j.jenvman.2015.12.030

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

ZIF-67(zinc-methylimidazolate framework-67), one of the zeolitic imidazolate frameworks (ZIFs), was used for the removal of phenol from aqueous solutions via adsorption and shows high adsorption capacity for phenol. The thermodynamic and kinetic adsorption behavior of ZIF-67 for phenol in water with concentration ranging from 50 to 300 ppm were investigated in a batch reactor and a ZIF-67 packed column, respectively. The effects of pH, contact time, zeta potential of the adsorbent and temperature on the adsorption behavior were evaluated, and the results demonstrated that the adsorption is primarily brought about by a specific favorable interaction (electrostatic interaction) between phenol and ZIF-67 surface. The suitability of the Langmuir adsorption model to the equilibrium data was investigated for each phenol-adsorbent system, which the results showed that the equilibrium data for all the phenol-sorbent systems fitted the Langmuir model. Thermodynamic parameters such as Gibbs free energy are calculated from the experimental data at different temperatures. The adsorbent could be perfectly regenerated at 120 degrees C with little loss in the adsorption ability. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：167 / 173

页数：7

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