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聚合物碳化制备高比表面积微孔炭材料及其CO2吸附性能

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田忠卫, 向敏, 赵文艳, 蔡进军. 聚合物碳化制备高比表面积微孔炭材料及其CO2吸附性能[J]. 环境化学, 2016, 35(5): 1007-1013. doi: 10.7524/j.issn.0254-6108.2016.05.2015112003
引用本文: 田忠卫, 向敏, 赵文艳, 蔡进军. 聚合物碳化制备高比表面积微孔炭材料及其CO2吸附性能[J]. 环境化学, 2016, 35(5): 1007-1013. doi: 10.7524/j.issn.0254-6108.2016.05.2015112003
shu
TIAN Zhongwei, XIANG Min, ZHAO Wenyan, CAI Jinjun. High-surface-area microporous carbons derived from polymers carbonization and their CO2 adsorption properties[J]. Environmental Chemistry, 2016, 35(5): 1007-1013. doi: 10.7524/j.issn.0254-6108.2016.05.2015112003
Citation: TIAN Zhongwei, XIANG Min, ZHAO Wenyan, CAI Jinjun. High-surface-area microporous carbons derived from polymers carbonization and their CO2 adsorption properties[J]. Environmental Chemistry, 2016, 35(5): 1007-1013. doi: 10.7524/j.issn.0254-6108.2016.05.2015112003
shu

聚合物碳化制备高比表面积微孔炭材料及其CO2吸附性能

  • 1.

    湘潭大学化工学院, 湘潭, 411105;

  • 2.

    固体废物处理与环境安全教育部重点实验室, 清华大学, 北京, 100084

  • 基金项目:

    国家自然科学基金(21506184),中国博士后基金(2015M572258),湘潭大学博士启动项目(15QDZ13)和中联环SWMES教育部重点实验室开放基金(SWMES2015-15)资助.

High-surface-area microporous carbons derived from polymers carbonization and their CO2 adsorption properties

  • 1.

    School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China;

  • 2.

    Key Laboratory for Solid Waste Management and Environment Safety(Tsinghua University), Ministry of Education of China, Beijing, 100084, China

  • Fund Project: Supported by the National Natural Science Foundation of China(21506184), China Postdoctoral Science Foundation(2015M572258), PhD Startup Foundation of Xiangtan University (15QDZ13), SWMES Key Lab Foundation of Ministry of Education of China, Tsinghua University (SWMES2015-15).

  • 摘要: 以商业化副产物聚偏二氯乙烯(PVDC)树脂粉末为碳源制备炭材料并研究了298 K时CO2的吸附性能.研究结果表明,PVDC树脂直接碳化得到比表面积为1220 m2·g-1且孔径小于1.5 nm的纯微孔炭材料,CO2在1 bar下的吸附量高达3.97 mmol·g-1.在此基础上用KOH对微孔炭材料进行活化处理,发现KOH活化在增大炭材料比表面积的同时能保持高微孔率,但1 bar下的CO2吸附量适度降低.高压下CO2吸附量与炭材料的比表面积呈正比,20 bar时在比表面积为2150 m2·g-1样品上的吸附量为18.27 mmol·g-1,这与其他类型高比表面积吸附剂相比都处于较高水平.
    Abstract: Porous carbons were prepared from the waste commercial byproduct of poly(vinylidene chloride) resin powders, and the corresponding CO2 adsorption properties at 298 K were studied. The results indicated that carbons with surface areas of 1220 m2·g-1 were obtained through direct carbonization and all pores were less than 1.5 nm, showing high CO2 uptake of 3.97 mmol·g-1 at 1 bar. KOH activation was applied to adjust pore structure and this process greatly enhanced the surface area and retained high porosity in the resulting carbons. However, CO2 uptake at 1 bar was slightly lowered in activated carbons compared with pristine one and uptake at high pressure was proportional to surface area. The carbon with surface area of 2150 m2·g-1 has CO2 uptake up to 18.27 mmol·g-1 at 20 bar, larger than many other related porous adsorbents.
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  • 收稿日期:  2015-11-20
  • 刊出日期:  2016-05-15
田忠卫, 向敏, 赵文艳, 蔡进军. 聚合物碳化制备高比表面积微孔炭材料及其CO2吸附性能[J]. 环境化学, 2016, 35(5): 1007-1013. doi: 10.7524/j.issn.0254-6108.2016.05.2015112003
引用本文: 田忠卫, 向敏, 赵文艳, 蔡进军. 聚合物碳化制备高比表面积微孔炭材料及其CO2吸附性能[J]. 环境化学, 2016, 35(5): 1007-1013. doi: 10.7524/j.issn.0254-6108.2016.05.2015112003
shu
TIAN Zhongwei, XIANG Min, ZHAO Wenyan, CAI Jinjun. High-surface-area microporous carbons derived from polymers carbonization and their CO2 adsorption properties[J]. Environmental Chemistry, 2016, 35(5): 1007-1013. doi: 10.7524/j.issn.0254-6108.2016.05.2015112003
Citation: TIAN Zhongwei, XIANG Min, ZHAO Wenyan, CAI Jinjun. High-surface-area microporous carbons derived from polymers carbonization and their CO2 adsorption properties[J]. Environmental Chemistry, 2016, 35(5): 1007-1013. doi: 10.7524/j.issn.0254-6108.2016.05.2015112003
shu

聚合物碳化制备高比表面积微孔炭材料及其CO2吸附性能

  • 1.  湘潭大学化工学院, 湘潭, 411105;
  • 2.  固体废物处理与环境安全教育部重点实验室, 清华大学, 北京, 100084
  • 收稿日期:  2015-11-20
基金项目:

国家自然科学基金(21506184),中国博士后基金(2015M572258),湘潭大学博士启动项目(15QDZ13)和中联环SWMES教育部重点实验室开放基金(SWMES2015-15)资助.

摘要: 以商业化副产物聚偏二氯乙烯(PVDC)树脂粉末为碳源制备炭材料并研究了298 K时CO2的吸附性能.研究结果表明,PVDC树脂直接碳化得到比表面积为1220 m2·g-1且孔径小于1.5 nm的纯微孔炭材料,CO2在1 bar下的吸附量高达3.97 mmol·g-1.在此基础上用KOH对微孔炭材料进行活化处理,发现KOH活化在增大炭材料比表面积的同时能保持高微孔率,但1 bar下的CO2吸附量适度降低.高压下CO2吸附量与炭材料的比表面积呈正比,20 bar时在比表面积为2150 m2·g-1样品上的吸附量为18.27 mmol·g-1,这与其他类型高比表面积吸附剂相比都处于较高水平.

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