Adsorption properties of graphite oxide for Rhodamine B

Micro & nano letters

article

Minyuan Yin¹  Yusong Pan¹  Chengling Pan¹ 

[1] School of Material Science & Engineering, An Hui University of Science and Technology

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;   

DOI  :  10.1049/mnl.2018.5820

学科分类：计算机科学（综合）

来源: Wiley

【 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.

【 授权许可】

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