Synthesis and characterization of metallic 1T-VS2 adsorbents for methylene blue removal
Özet
This study presents a comprehensive evaluation of methylene blue (MB) removal using hydrothermally synthesized 1 T metallic VS2 adsorbents. Among samples synthesized at 120–200 °C, VS2-200 exhibited optimal structural purity, a BET surface area of 10.97 m2 g−1, high MB removal efficiencies (95–100%), and a maximum monolayer adsorption capacity ( q max ) of 53.19 mg g−1. Equilibrium data were fitted to Langmuir, Freundlich, and Temkin models, while kinetics were best described by the pseudo-second-order model alongside intraparticle diffusion. For VS2-200, adsorption was enhanced under alkaline conditions via electrostatic attraction. Furthermore, VS2-200 maintained stability across varying ionic strengths, retained over 90% capacity after regeneration, and demonstrated high cationic selectivity in binary dye (MB/ Methyl Orange, MO) tests. In conclusion, metallic 1T-VS2-200 exhibits promising features as an energy-free, dark-active adsorbent for potential utilization in water decontamination processes.
Anahtar kelimeler
Atıf için künye
GÜLTEPE, O., Yaldiz, H., GÜR, E., Budak, H. F., & ATAY, F. (2026). Synthesis and characterization of metallic 1T-VS2 adsorbents for methylene blue removal. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 14(6). https://doi.org/10.1016/j.jece.2026.125106
BibTeX
@article{gultepe2026-341231,
author = {GÜLTEPE, ORKUN and Yaldiz, Hande and GÜR, EMRE and Budak, Hasan Feyzi and ATAY, FERHUNDE},
title = {Synthesis and characterization of metallic 1T-VS2 adsorbents for methylene blue removal},
journal = {JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING},
year = {2026},
volume = {14},
number = {6},
issn = {2213-2929},
doi = {10.1016/j.jece.2026.125106},
url = {https://akademik.atauni.edu.tr/yayinlar/341231-synthesis-and-characterization-of-metallic-1t-vs2-adsorbents-for-methylene-blue}
}