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Study on the removal and adsorption kinetics of malachite green in water by NaY molecular sieve prepared from coal gangue

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  • gnest_06944_in press.pdf
  • Paper ID
    gnest_06944
  • Paper status
    In press
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.06944
Graphical abstract
Abstract

The synthesis of NaY molecular sieve from coal gangue and its adsorption properties for malachite green were studied. The process adopts high-temperature sintering hydrothermal method, which not only improves the utilization rate of coal gangue, but also analyzes the key parameters affecting the formation of molecular sieve with high adsorption efficiency of organic pollutants, and characterizes the materials by XRD, SEM, EDS, BET, etc. The adsorption process of malachite green solution was analyzed by adsorption kinetics and isotherm, and the adsorption mechanism was elucidated by XRD, FTIR, XPS and SEM. The results show that the maximum adsorption capacity of NaY molecular sieve for malachite green is 1910mg/g under the best conditions, which conforms to the quasi-second-order kinetic equation and Langmuir isothermal adsorption model.

Keywords
gangu NaY molecular sieve hydrothermal method MG adsorption
Cite this article
Wang, Q., min, J. and Xu, W. (2025) “Study on the removal and adsorption kinetics of malachite green in water by NaY molecular sieve prepared from coal gangue”, Global NEST Journal [Preprint]. Available at: https://doi.org/10.30955/gnj.06944.
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  • gnest_06944_in press.pdf