Adsorptive removal of toluene and carbon tetrachloride from gas phase using Zeolitic Imidazolate Framework-8: Effects of synthesis method, particle size, and pretreatment of the adsorbent

被引：72
作者：
Jafari, Saeed [1 ,2 ]
Ghorbani-Shahna, Farshid [2 ]
Bahrami, Abdulrahman [2 ]
Kazemian, Hossein [3 ,4 ]
机构：
[1] Shiraz Univ Med Sci, Dept Occupat Hlth Engn, Shiraz, Iran
[2] Hamadan Univ Med Sci, Ctr Excellence Occupat Hlth, Occupat Hlth & Safety Res Ctr, Sch Publ Hlth, Hamadan, Iran
[3] Univ Northern British Columbia, Coll Sci & Management, Prince George, BC, Canada
[4] Western Univ, Dept Chem & Biochem Engn, London, ON, Canada
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2018年 / 268卷
关键词：
Zeolitic Imidazolate Framework-8 (ZIF-8); Dynamic adsorption; Toluene; Carbon tetrachloride; Volatile organic compounds (VOCs); VOLATILE ORGANIC-COMPOUNDS; ACTIVATED CARBON; INDOOR ENVIRONMENT; CONTAMINATED AIR; AQUEOUS-SOLUTION; BENZENE; METAL; ZIF-8; XYLENE; SELECTIVITY;
D O I：
10.1016/j.micromeso.2018.04.013
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Dynamic adsorption of toluene and carbon tetrachloride was studied on Zeolitic Imidazolate Framework-8 (ZIF-8). The ZIF-8 was synthesized using environmentally friendly procedures in an aqueous solution at ambient temperature with different concentrations of precursors. ZIF-8 samples were characterized by XRD, FTIR, SEM, DLS, and BET, and the results indicated that both synthesis methods lead to pure ZIF-8 products. The adsorption of toluene and carbon tetrachloride from gas phase was studied in a fixed bed reactor. The effects of different pretreatment conditions, particle size, and surface area of ZIF-8 on the adsorption performance were studied using a breakthrough curve. Experimental results revealed that ZIF-8 adsorption performance was improved as pretreatment temperatures was increased and particle size was reduced. The results of the experimental dynamic adsorption of toluene and carbon tetrachloride on ZIF-8 were fitted into the Thomas and Yan models. It was observed that toluene adsorption breakthrough curves were fitted in both models better than those of carbon tetrachloride curves.
引用
收藏
页码：58 / 68
页数：11
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