Adsorption properties of graphite oxide for Rhodamine B

被引：21
作者：
Yin, Minyuan [1 ]
Pan, Yusong [1 ]
Pan, Chengling [1 ]
机构：
[1] An Hui Univ Sci & Technol, Sch Mat Sci & Engn, Huai Nan 232001, Peoples R China
来源：
MICRO & NANO LETTERS | 2019年 / 14卷 / 11期
关键词：
pH; adsorption; monolayers; wastewater treatment; adsorption properties; graphite oxide; Rhodamine B; maximum adsorption capacity; pH value; adsorption kinetics; pseudosecond-order model adsorption process; monolayer chemical adsorption; Langmuir isothermal model; temperature; 303; 15; K; GRAPHENE OXIDE; PHOTOCATALYTIC DEGRADATION; AQUEOUS-SOLUTION; CRYSTAL VIOLET; DYE REMOVAL; VOID SPACE; CONGO RED; WATER; CARBON; PERFORMANCE;
D O I：
10.1049/mnl.2018.5820
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the present study, the adsorption properties of graphite oxide (GO) for Rhodamine B (RhB) under different conditions was investigated. The specific surface area of the GO adsorbent decreased from 71.5 m(2) g(-1) for before adsorption of RhB to 4.9 m(2) g(-1) for after adsorption of RhB. The maximum adsorption capacity was 578.0 mg g(-1) at 303.15 K. Moreover, the pH value has a great influence on the adsorption properties of GO. The adsorption capacity of GO for RhB increased first and then decreased with the rise of pH value. Study on the adsorption kinetics verified that the adsorption process conformed to the pseudo-second-order model adsorption process. The isothermal model is consistent with the Langmuir isothermal model and belongs to the monolayer chemical adsorption.
引用
收藏
页码：1192 / 1197
页数：6
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