蔗渣基多孔碳的制备及结构和孔径分布研究

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英文篇名：Preparation, Structure and Pore Size Distribution of Bagasse-based Porous Carbon 作者：李锦荣 ; 曾建 ; 康佩姿 ; 马年方 英文作者：LI Jin-rong;ZENG Jian;KANG Pei-zi;MA Nian-fang;Guangdong Provincial Bioengineering Institute (Guangzhou Sugarcane Industry Research Institute)/Guangdong Key Lab of Sugarcane Improvement & Biorefinery;Guangdong Engineering Research & Development of Plant Fiber;Guangdong Province Engineering Laboratory for High-Value Utilization of Biomass; 关键词：蔗渣 ; 多孔碳 ; 高比表面积 英文关键词：Bagasse;;Porous carbon;;High specific surface area 中文刊名：甘蔗糖业 英文刊名：Sugarcane and Canesugar 机构：广东省生物工程研究所(广州甘蔗糖业研究所)广东省甘蔗改良与生物炼制重点实验室;广东省植物纤维综合利用工程技术研究开发中心;广东省生物质高值化利用工程实验室; 出版日期：2019-04-15 出版单位：甘蔗糖业 年：2019 期：02 基金：广东省科技计划项目(2016A010103018);; 广东省科学院专项资金(2018GDASCX-0105、2017GDASCX-0105) 语种：中文; 页：48-53 页数：6 CN：44-1210/TS ISSN：1005-9695 分类号：TQ424

摘要

以具有自然分级的甘蔗渣为原料通过炭化和KOH活化制备了高比表面积和丰富微孔结构的多孔碳。对多孔碳制备工艺以碳得率和比表面积为综合考查指标,对活化剂量和活化温度进行优化,并研究蔗渣基多孔碳的孔径分布和表面有机化学组成。结果表明,蔗渣基多孔碳的最佳制备工艺为活化温度700℃,KOH︰炭化蔗渣(CB)剂量比例为4︰1,制备的蔗渣基多孔碳比表面积高达2220.2m2/g,有丰富的微孔结构,且含有部分羧基,是一种非常有前景的重金属离子吸附材料。
        In this paper, bagasse porous carbon with high specific surface area and micropore structure was prepared from natural grading bagasse by carbonization and KOH activation. The parameters affecting the preparation of porous carbon, such as activation temperature and activate agent dosage, were optimized based on carbon yield and specific surface area. The pore size distribution and surface organic chemical composition of bagasse-based porous carbon were studied. The results showed that the optimum preparation parameters of bagasse-based porous carbon were as follows: the activation temperature was 700℃ and the weight ratio of KOH︰carbon bagasse was 4︰1. The specific surface area of bagasse-based porous carbon was as high as2220.2 m2/g, which contained mainly microporous structure and some carboxyl groups on the surface. It was a promising heavy metal ion adsorption material.

引文

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