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Controllable Preparation of Zeolite-P/Calcined Diatomite with MgCl2

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Abstract

Developing highly efficient calcined diatomite (C-D)-based filter aids with excellent adsorption performance is of great significance. Herein, Zeolite-P was successfully synthesized on the surface of C-D through hydrothermal modification with NaOH and MgCl2 as efficient morphology control agents. The optimal Zeolite-P/C-D material perfectly retained the diatomite structure and showed a whiteness of 83.36% and a high specific surface area of 237.47 m2/g, leading to an excellent adsorption capacity for methylene blue trihydrate (MB) of 125.46 mg/g and a good permeability of 0.43 darcy. The porous fibrous microspheres Zeolite-P was synthesized on the surface of C-D under controlled conditions to improve the adsorption performance of Zeolite-P/C-D material. By developing diatomite-based composites for filter aids applications, this study paves the way for the comprehensive and efficient utilization of low-cost diatomite resources.

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Authors and Affiliations

  1. School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, 430070, China

    Zhengzheng Guo, Zijie Ren, Huimin Gao & Junfang Guan

  2. Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan, 430070, China

    Zijie Ren, Huimin Gao & Junfang Guan

  3. CNBM Research Institute for Advanced Glass Materials Group Co., Ltd, Bengbu, 233018, People’s Republic of China

    Peiyue Li

  4. School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China

    Renji Zheng

  5. China Energy Green Building Material CO., Wuhan, 430070, LT, China

    Hang Yin

  6. Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia

    Zhijie Chen

Authors
  1. Zhengzheng Guo
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  2. Zijie Ren
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  3. Huimin Gao
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  4. Junfang Guan
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  5. Peiyue Li
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  6. Renji Zheng
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  7. Hang Yin
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  8. Zhijie Chen
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Contributions

ZG: experiment, data processing and analysis, writing-original draft, revised manuscript preparation. ZR: supervision, writing—review and editing, resources. HG: writing—review and editing, resources. JG: writing—review and editing. ZC: supervision and editing. PL: validation. RZ: supervision and editing. HY: validation.

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Correspondence to Zijie Ren or Renji Zheng.

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Guo, Z., Ren, Z., Gao, H. et al. Controllable Preparation of Zeolite-P/Calcined Diatomite with MgCl2. Korean J. Chem. Eng. 41, 1851–1859 (2024). https://doi.org/10.1007/s11814-024-00013-8

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  • DOI: https://doi.org/10.1007/s11814-024-00013-8

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