Performance and characteristics of methylene blue adsorption using nanomagnetite graphite adsorbent

被引：0
|
作者：
Wen, Shuangxi [1 ]
Zhang, Juanjuan [1 ]
Meng, Dele [1 ]
Yang, Hongyi [1 ]
Yang, Tongneng [1 ]
Xiao, Mi [1 ]
机构：
[1] Guiyang Univ, Coll Biol & Environm Engn, Guiyang 550005, Guizhou, Peoples R China
来源：
2020 INTERNATIONAL CONFERENCE ON GREEN DEVELOPMENT AND ENVIRONMENTAL SCIENCE AND TECHNOLOGY | 2020年 / 615卷
关键词：
D O I：
10.1088/1755-1315/615/1/012071
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
In this paper, a nanomagnetite graphite adsorbent (MGNP) was developed for removal of methylene blue from aqueous solutions. MGNP was synthesized through the nanographite powder (GNP) functionalized with magnetic gamma-Fe2O3 nanoparticles under alkaline conditions and calcining for 3 h at 300 degrees C. The MGNP featured a quick separation process from solutions with an external magnet. The surface charge of the adsorbent was pH-dependent, the pH(pzc) of MGNP was approximately 7.2. The methylene blue adsorption isotherm of the MGNP can be well fitted by the Langmuir model, the maximum adsorption capacity was about 114.94 mg/g at 25 degrees C when pH = 7 +/- 0.1. In conclusion, the MGNP could be a potential adsorbent for the uptake of methylene blue from wastewater.
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页数：5
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