Research on the adsorption of RhB on CTMAB modified zeolite: adsorption kinetics, isotherm and thermodynamics studies

被引：4
|
作者：
Ma, Hongfei [1 ]
Li, Wei [1 ]
Li, Zhuqing [1 ]
Li, Judi [1 ]
Han, Qiuju [1 ]
机构：
[1] Liaoning Petrochem Univ, Sch Environm & Safety Engn, Fushun 113001, Liaoning, Peoples R China
来源：
2022 INTERNATIONAL CONFERENCE ON MATERIALS ENGINEERING AND APPLIED MECHANICS, ICMEAAE 2022 | 2022年 / 2285卷
关键词：
REMOVAL; ADSORBENTS;
D O I：
10.1088/1742-6596/2285/1/012033
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Cetyltrimethylammonium bromide (CTMAB) modified zeolite was used as the adsorbent, the adsorption behavior of simulated rhodamine B (RhB) dye wastewater was studied. The effects of adsorbent dosage and pH on RhB adsorption by the modified zeolite were investigated. The results show that the increase of the dosage of modified zeolite can improve the removal rate of RhB. The change of pH has a certain influence on the adsorption effect of RhB. The pseudo-second order kinetic model can accurately describe the adsorption kinetics. The study of adsorption equilibrium shows that Freundlich model can better fit the adsorption process than Langmuir model, and the maximum adsorption capacity was 15.97mg/g (303k). The thermodynamic calculation results show that the adsorption of RhB on cetyltrimethylammonium bromide (CTMAB) modified zeolite was an endothermic process, and the increase of the temperature was conducive to the reaction.
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页数：7
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