Study of the effect of chemical composition on the surface wettability of three-dimensional graphene foams  

作　　者：Guihua Huang Xinhong Song Yiying Chen Fangyuan Lin Yipeng Huang Feiming Li Zhiyong Guo Qiuhong Yao Xi Chen 

机构地区：[1]Institute of Analytical Technology and Smart Instruments,College of Environment and Public Health,XiamenHuaxia University,Xiamen 361024,China [2]State Key Laboratory of Marine Environmental Science,Xiamen University,Xiamen 361005,China [3]College of Ocean Science and Engineering.Shanghai Maritime University,Shanghai 201306,China

出　　处：《Chinese Chemical Letters》2020年第7期1839-1842,共4页中国化学快报（英文版）

基　　金：the National Natural Science Foundation of China(No.21675133)。

摘　　要：The chemical composition obviously affects the surface wettability of a three-dimensional(3D)graphene material apart from its surface energy and microstructure.In the hydrothermal preparation,the heteroatom doping changes the chemical composition and wettability of the 3D graphene material.To realize the controllable surface wettability of graphene materials,aminobenzene sulfonic acid(ABSA)was selected as a typical doping agent for the preparation of nitrogen and sulfur co-doped 3D graphene foam(SNGF)using a hydrothermal method.Different from using o-ABSA or p-ABSA as the dopant,SNGF with tunable surface wettability is obtained only when m-ABSA is used.This result indicates that the substituent position of-SO3H group in the benzene ring of ABSA is rather important for the tunable wettability.This work provides some theo retical foundations for dopant selection and some new insights in manipulating the properties of 3D graphene foams by adjusting the configuration of dopants.

关 键 词：3D graphene foam Surface wettability Dopant configuration Chemical composition Aminobenzene sulfonic acid 

分 类 号：TQ127.11[化学工程—无机化工]