Synergetic effect of zinc oxide, iron oxide, and bentonite/zeolite P1 for the effective crystal violet removal based on Fenton-like oxidation

https://doi.org/10.31130/ud-jst.2025.23(12).464E

Tóm tắt: 2 | PDF: 5

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Author

  • Tran Nguyen Phuong Lan
    Can Tho University, Vietnam
    Ly Kim Phung
    Can Tho University, Vietnam
    Nguyen Minh Nhut
    Can Tho University, Vietnam
    Cao Luu Ngoc Hanh
    Can Tho University, Vietnam
    Duong Thi My Tuyen
    Can Tho University, Vietnam
    Tran Thanh Thao
    Vinh Long University of Technology and Education, Vietnam

Từ khóa:

Bentonite
crystal violet
Fenton-like reaction
heterogeneous catalysts
ZnO and α-Fe2O3

Tóm tắt

In this study, a ZnO/α-Fe2O3/bentonite/zeolite P1 (ZFBP) composite was successfully synthesised using natural bentonite sourced from Vietnam. The influence of zinc concentration on the Fenton-like catalytic efficiency toward crystal violet (CV) degradation and the physicochemical characteristics of ZFBP was evaluated through various analytical methods. At Fe2O3 and ZnO loadings of 15.14 wt.% and 7.34 wt.%, respectively, 92.54% degradation of CV was achieved in 40 min. Kinetic analysis revealed that the CV removal followed a pseudo-first-order model, with a reaction rate constant of 0.06 1/min under the optimal conditions. The removal mechanisms comprised of adsorption and the Fenton-like oxidation reaction, with the synergistic effect of the ZFBP components actively supporting the good removal efficiency. Furthermore, the composite demonstrated remarkable reusability after 10 cycles. These findings highlight the promising potential of ZFBP as an effective material for the treatment of organic dyes.

Tài liệu tham khảo

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Dec 31, 2025
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Lan, T. N. P., L. K. Phung, N. M. Nhut, C. L. N. Hanh, D. T. M. Tuyen, và T. T. Thao. “Synergetic Effect of Zinc Oxide, Iron Oxide, and bentonite/Zeolite P1 for the Effective Crystal Violet Removal Based on Fenton-Like Oxidation”. Tạp Chí Khoa học Và Công nghệ - Đại học Đà Nẵng, vol 23, số p.h 12, Tháng Chạp 2025, tr 54-59, doi:10.31130/ud-jst.2025.23(12).464E.

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