Facile fabrication of 3D graphene hydrogel (rGH) for enhanced removal of heavy metal Cr (VI)

被引：0
|
作者：
Li, Y. [1 ,2 ]
Zhao, X. Y. [3 ]
Guo, X. C. [4 ]
Wang, J. [4 ]
Chen, W. [1 ]
机构：
[1] North China Univ Sci & Technol, Coll Met & Energy, Hebei Prov High Qual Steel Continuous Casting Engn, Tangshan 063210, Hebei, Peoples R China
[2] North China Univ Sci & Technol, Comprehens test & Anal Ctr, Tangshan 063210, Hebei, Peoples R China
[3] Tangshan Open Univ, Tangshan 063210, Hebei, Peoples R China
[4] North China Univ Sci & Technol, Yisheng Coll, Tangshan 063210, Hebei, Peoples R China
来源：
DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES | 2023年 / 18卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Graphene hydrogel (rGH); Adsorption; Reduction; Cr(VI); AQUEOUS-SOLUTION; ADSORPTION; CARBON;
D O I：
10.15251/DJNB.2023.182.463
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The reduced graphene hydrogel (rGH) was prepared by chemical reduction method, and removal performance of heavy metal Cr (VI) in static water was studied. The rGH has a three-dimensional structure and narrow pore size distribution, that the adsorption process of Cr (VI) by rGH is in accordance with Langmuir isotherm model, and the maximum adsorption capacity is 139.6 mg & BULL;g-1.The significant adsorption capacity is mainly attributed to the fact that rGH has nano-sheet structure, and maintains the surface adsorption characteristics of graphene with rapid adsorption. The & pi;-& pi; action will reduce the competitive adsorption of water and increase the adsorption capacity.
引用
收藏
页码：463 / 474
页数：12
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