Synthesis and characterization of co-crystalline zeolite composite of LSX/A

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• 作者：Supak Tontisirin^a ; ^b ; ^{supak.t@eng.kmutnb.ac.th}
• 关键词：Low Silica X ; Zeolite A ; Zeolite composite ; Co-crystallization ; Copper adsorption
• 刊名：Microporous and Mesoporous Materials
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：239
• 期：Complete
• 页码：123-129
• 全文大小：1614 K
• 卷排序：239

文摘

Suggest the ratio of KOH/SiO2 = 1 in the synthesis gel of LSX to develop the co-crystalline zeolite composite (Na/K)-LSX/A. The composite has hierarchical structure with high pore volume of 0.27 cm3/g. The composite has higher structural transformation temperature at 963 °C. Prove of hierarchical structure throughout the crystal of the composite using TEM of cross-section of the crystal. The composite is an effective adsorbent for copper(II) ions adsorption with high uptake capacity of 2.36 mmol/g or 150 mg/g.