碱改性石墨烯材料制备及对亚甲基蓝吸附性能研究  

Preparation of Alkali Modified Graphene Materials and its Performance in Adsorption of Methylene Blue

作　　者：陈亚诺 陈林霞 张鑫祥 唐剑飞 金姚姚 孙培夫 李伟东[1,2] 曹勇 Chen Yanuo;Chen Linxia;Zhang Xinxiang;Tang Jianfei;Jin Yaoyao;Sun Peifu;Li Weidong;Cao Yong(Qianjiang College of Hangzhou Normal University,Hangzhou 310018;School of Engineering,Hangzhou Normal University,Hangzhou 311121;Zhejiang Province Environmental Engineering Co.,Ltd.,Hangzhou 310012,China)

机构地区：[1]杭州师范大学钱江学院,浙江杭州310018 [2]杭州师范大学工学院,浙江杭州311121 [3]浙江省环境工程公司,浙江杭州310012

出　　处：《广东化工》2023年第13期23-25,共3页Guangdong Chemical Industry

基　　金：浙江省基础公益研究计划项目(GF22B070001);浙江省新苗人才计划项目(2021R426059);国家级大学生创新创业训练计划项目(202210346069);杭州师范大学钱江学院科研项目(2022QJJL06)。

摘　　要：通过超声辅助技术,用强碱对石墨烯改性制备新型改性石墨烯材料。采用透射电子显微镜、傅里叶红外光谱和X射线衍射分析对改性材料进行表征。结果显示:改性后的石墨烯材料比表面积更大,形成更多的孔径结构,增加改性石墨烯的吸附活性位点。对亚甲基蓝的吸附实验表明,改性石墨烯材料对MB的吸附性能与超声时间、温度变化成正相关关系,且随着强碱含量的提高而前增后减,故碱改性对石墨烯的热吸附特性也有提高效果。在MB浓度为120 mg/L时,改性材料对MB的最大吸附容量为236.5 mg/g。A new modified graphene material was prepared by using strong alkali modified by ultrasonic assisted technology.The as-prepared samples were characterized using X-ray diffraction(XRD),scanning electron microscopy(SEM),and Fourier transform infrared(FT-IR)spectroscopy.The results showed that the modified graphene material had larger surface area,formed more pore size structure,and increased the adsorption active sites of the modified graphene.The methylene blue adsorption experiment showed that the adsorption performance of the modified graphene material for MB was positively correlated with the change of ultrasonic time and temperature,and increased before and then decreased with the increase of strong alkali content.Therefore,alkali modification also improved the thermal adsorption properties of graphene.When the concentration of MB is 120 mg/L,the maximum adsorption capacity of the modified material for MB is 236.5 mg/g.

关 键 词：改性石墨烯 氢氧化钠 亚甲基蓝 

分 类 号：TQ[化学工程]