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Chemcial Industry and Engineering 2024, Vol. 41 Issue (4) :28-37    DOI: 10.13353/j.issn.1004.9533.20226001
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Preparation and adsorption properties of series of cross-linked graphene sponge
LIN Yanxin1, WANG Xin1, SHI Ruijie1, JIANG Xu1, WANG Ning1, WANG Ping2, FENG Yaqing1, MENG Shuxian1
1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300354, China;
2. Tianjin Modern InnovativeChinese Medicine Technology Co. Ltd., Tianjin 300191, China

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Abstract In order to explore the preparation and adsorption properties of small molecules and graphene crosslinking materials, graphene hydrogels were prepared by hydrothermal method, and three cross-linked graphene sponge materials were synthesized from ethylenediamine, 1,3-Diaminopropane and Diethylenetriamine, respectively. The structure was characterized by SEM, FTIR and BET, and the difference of liquid adsorption capacity of three cross-linked graphene sponge materials before and after expansion was investigated. Methylene blue was further used as organics in sewage for adsorption simulation experiment. The results show that these series of graphene material have excellent adsorption properties, and the adsorption process conforms to the pseudo-second-order kinetic equation. With the increase of the number of carbons in cross-linked small molecular, the adsorption capacity increases by 26% and the adsorption rate increases to a certain extent. The adsorption performance after expansion is obviously better than that before expansion, which is raised by 1.37 times than before.
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Articles by authors
LIN Yanxin
WANG Xin
SHI Ruijie
JIANG Xu
WANG Ning
WANG Ping
FENG Yaqing
MENG Shuxian
Keywordsgraphene   adsorption material   sewage treatment   adsorption kinetics     
Received 2022-02-09;
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LIN Yanxin, WANG Xin, SHI Ruijie, JIANG Xu, WANG Ning, WANG Ping, FENG Yaqing, MENG Shuxian.Preparation and adsorption properties of series of cross-linked graphene sponge[J]  Chemcial Industry and Engineering, 2024,V41(4): 28-37
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