Enhanced adsorption of phthalic acid from aqueous solution by LDH@ZIF-8 composites

被引：0
作者：
Wang, Yingwei [1 ]
Yang, Yingli [2 ]
Yan, Xinlong [2 ]
机构：
[1] Sinopec Petr Engn Corp, Shandong Prov Key Lab Treatment Oilfield Produced, Dongying 257026, Peoples R China
[2] China Univ Min & Technol, Coll Chem Engn, Xuzhou 221116, Peoples R China
来源：
DESALINATION AND WATER TREATMENT | 2023年 / 307卷
关键词：
Hydrotalcite; Zeolitic imidazolate frameworks (ZIFs); In-situ synthesis; Adsorption; Phthalic acid; ZIF-8; KINETICS; REMOVAL;
D O I：
10.5004/dwt.2023.29844
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
LDH@ZIF-8 composite has been synthesized via in-situ growth of zeolitic imidazolate frameworks-8 (ZIF-8) on Zn/Al hydrotalcite. The morphology and composition of the samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscope and N2 adsorption-desorption technics. The adsorption performances of LDH@ZIF-8 sample for phthalic acid were investigated. The results show that the adsorption capacity of LDH@ZIF-8 could be as high as 508.72 mg/g at 20 degrees C, C0 = 100 mg/g. The adsorption isotherms and adsorption kinetics were well described by Freundlich isotherm model and the pseudo-first-order kinetic equation, respectively. In addition, recycling experiments revealed that the behavior of LDH@ZIF-8 is maintained after recycling for at least three times.
引用
收藏
页码：63 / 71
页数：9
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