Adsorption of Rhodamine B dye on potassium permanganate modified peanut shell: adsorption kinetics, thermodynamics and isotherm studies

被引：1
作者：
Zhai, Qing-Zhou [1 ]
机构：
[1] Changchun Univ Sci & Technol, Res Ctr Nanotechnol, South Campus,7186 Weixing Rd, Changchun 130022, Peoples R China
来源：
DESALINATION AND WATER TREATMENT | 2023年 / 303卷
关键词：
Rhodamine B; Modified peanut shell; Adsorption; Kinetics; Thermodynamics; Isotherm; METAL-ORGANIC FRAMEWORK; LOW-COST ADSORBENT; AQUEOUS-SOLUTION; METHYLENE-BLUE; ACTIVATED CARBON; CRYSTAL VIOLET; MESOPOROUS SBA-15; REMOVAL; SEQUESTRATION; BEHAVIOR;
D O I：
10.5004/dwt.2023.29798
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In order to study the adsorption effect of peanut shell on dye in industrial wastewater, the dye Rhodamine B was used as the research object and the peanut shell was modified. After modifica-tion, the best adsorption effect is potassium permanganate modified materials. The factors affect-ing the adsorption of Rhodamine B on peanut shell, such as pH value, initial concentration of dye, amount of adsorbent, contact time, adsorption temperature and ionic strength, were investigated. The best adsorption conditions of peanut shell for Rhodamine B were obtained. The adsorption thermodynamic equation, adsorption kinetic equation and the sorption isotherms were determined. The results showed that the adsorption process satisfied Freundlich isothermal adsorption equation and the adsorption process was spontaneous and exothermic. The adsorption of Rhodamine B on peanut shell accorded with the pseudo-second-order adsorption kinetics.
引用
收藏
页码：212 / 223
页数：12
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