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Synthesis of zeolitic material from basalt rock and its adsorption properties for carbon dioxide

机译：玄武岩岩石沸石合成及其二氧化碳的吸附性能

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摘要

A zeolitic 4A type material was successfully prepared from natural basalt rock by applying an alkali fusion process and hydrothermal synthesis. In particular, the optimum synthetic conditions were examined at different crystallization times. Several methods such as XRD, SEM, EDX, and N-2 and CO2 adsorption analysis were used to characterize the synthesized 4A type zeolite. In addition, CO2 adsorption equilibrium capacities for this basalt base zeolite were measured over temperature ranges from 283 to 303 K and pressure ranges from 0.1 to 1500 kPa in a volumetric adsorption apparatus. Then the results were compared to those of commercial zeolite. Moreover, to further investigate the surface energetic heterogeneity of the prepared zeolite, the isosteric heat of adsorption and adsorption energy distribution was determined. We found that basalt based zeolite 4A shows a CO 2 adsorption equilibrium capacity of 5.9 mmol g(-1) (at 293 K and 1500 kPa) which is much higher than the 3.6 mmol g(-1) of the commercial zeolite as its micro-pore surface area, micro-pore volume and surface heterogeneity indicate.
机译：通过施加碱融合工艺和水热合成，通过天然玄武岩岩石成功制备沸石4A型材料。特别地，在不同的结晶时间内检查最佳的合成条件。使用诸如XRD，SEM，EDX和N-2和CO 2吸附分析的几种方法来表征合成的4A型沸石。此外，在体积吸附装置中，在283至303k的温度范围内测量该玄武岩基沸石的CO 2吸附平衡容量，并且在体积吸附装置中的压力范围为0.1至1500kPa。然后将结果与商业沸石的比较。此外，为了进一步研究制备的沸石的表面大能量异质性，测定吸附和吸附能量分布的旁边热量。我们发现玄武岩基沸石4a显示了5.9mmol g（-1）（在293k和1500kpa）的CO 2吸附平衡容量，其远高于商业沸石的3.6mmol g（-1）作为其微量-Pore表面积，微孔体积和表面异质性表明。

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  • 来源
    《RSC Advances》 |2018年第17期|共6页
  • 作者

    Hwang Kyung-Jun; Choi Won-Seok; Jung Sung-Hoon; Kwon Young-Jun; Hong Soonkook; Choi Chulmin; Lee Jae-Wook; Shim Wang-Geun;

  • 作者单位

    Cheorwon Plasma Res Inst Adv Mat &

    Strateg Planning Div Cheorwon Gun 24047 Gangwon Do South Korea;

    Cheorwon Plasma Res Inst Adv Mat &

    Strateg Planning Div Cheorwon Gun 24047 Gangwon Do South Korea;

    Chosun Univ Dept Biochem &

    Polymer Engn Gwangju 61452 South Korea;

    Kyung Hee Univ Dept Chem Engn Yongin 17104 Gyeonggi Do South Korea;

    Korea Naval Acad Dept Mech &

    Naval Architectural Engn Changwon Si 51704 Kyungsangnam Do South Korea;

    NanoSD Inc 11575 Sorrento Valley Rd San Diego CA 92121 USA;

    Chosun Univ Dept Biochem &

    Polymer Engn Gwangju 61452 South Korea;

    Sunchon Natl Univ Dept Polymer Sci &

    Engn 255 Jungang Ro Sunchon 57975 South Korea;

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  • 正文语种 eng
  • 中图分类 化学;
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