Vol. 2 No. 07 (2026), Articles
Vol. 2 No. 07 (2026)

ADSORPTION BEHAVIOR OF MOLYBDENUM IONS ON A CPVC-BASED ANION-EXCHANGE SORBENT: KINETIC, ISOTHERMAL, AND MECHANISTIC ASPECTS

Articles
Published 2026-04-16
Gafurova D.A
National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan
Shaxidova D.N
National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan
Azimova G.Z
National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan
Qurbonov H.G‘
Tashkent State Medical University, Tashkent, Uzbekistan
Qoraboyeva N.M
National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan
Ikramova S.M
National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan
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Keywords

CPVC-based sorbent; molybdenum adsorption; adsorption kinetics; chemisorption; water purification

How to Cite

D.A, G., D.N, S., G.Z, A., H.G‘, Q., N.M, Q., & S.M, I. (2026). ADSORPTION BEHAVIOR OF MOLYBDENUM IONS ON A CPVC-BASED ANION-EXCHANGE SORBENT: KINETIC, ISOTHERMAL, AND MECHANISTIC ASPECTS. Advances in Science and Environment, 2(07), 31-35. https://doi.org/10.70728/envire.v02.i07.007
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Abstract

This study examines the adsorption behavior of Mo(VI) ions on a chlorinated polyvinyl chloride (CPVC)-based sorbent under static conditions at various concentrations and temperatures. Kinetic results revealed rapid initial uptake followed by a slower approach to equilibrium, suggesting a two-stage adsorption mechanism. Adsorption capacity increased slightly with increasing temperature, indicating improved ion mobility and diffusion. Equilibrium analysis revealed that the process conforms to the Langmuir isotherm model, confirming monolayer adsorption on a homogeneous surface. Thermodynamic parameters revealed that the adsorption process is spontaneous and endothermic, with increasing disorder at the solid–solution interface.

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