水热法三维多孔石墨烯的制备及吸附性能研究

Non-Metallic Mines(2021)

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Abstract
通过水热法自组装制备三维多孔石墨烯(3D-RGO),采用比表面积分析(BET)仪、X射线衍射(XRD)仪和扫描电子显微镜(SEM)对3D-RGO比表面积、微观形貌及结构进行表征,考察3D-RGO对有机染料亚甲基蓝(MB)溶液的吸附特性.结果表明,3D-RGO具有介孔孔状结构,比表面积为141.686m2/g;在pH值为8,吸附时间为360min,吸附温度为70℃,吸附剂用量为40mg条件下,3D-RGO对200mL3mg/L的MB溶液吸附量为13.608mg,去除率为90.75%;3D-RGO对MB溶液的吸附为吸热过程,符合准一阶动力学模型和Langmuir等温线模型.
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