Effective elimination of 4‐nitrophenol in water by reduced graphene oxide/CoFe2O4/Fe nanocomposite

Vu Dinh Thao, Nguyen Dinh Sinh, Nguyen Trung Dung, Vu Ngoc Toan, Nguyen Nhat Huy
Author affiliations

Authors

  • Vu Dinh Thao Faculty of Physical and Chemical Engineering, Le Quy Don Technical University, 236 Hoang Quoc Viet, Nghia Do Ward, Ha Noi, Viet Nam https://orcid.org/0000-0002-8952-2897
  • Nguyen Dinh Sinh Faculty of Physical and Chemical Engineering, Le Quy Don Technical University, 236 Hoang Quoc Viet, Nghia Do Ward, Ha Noi, Viet Nam
  • Nguyen Trung Dung Faculty of Physical and Chemical Engineering, Le Quy Don Technical University, 236 Hoang Quoc Viet, Nghia Do Ward, Ha Noi, Viet Nam
  • Vu Ngoc Toan Insitute of New Technology, 17 Hoang Sam, Nghia Do Ward, Ha Noi, Viet Nam
  • Nguyen Nhat Huy Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City, Viet Nam https://orcid.org/0000-0002-2918-7935

DOI:

https://doi.org/10.15625/2525-2518/19447

Keywords:

Reduced graphene oxide, Cobalt ferrite, Zero-valent iron, Photocatalysis, 4‐nitrophenol

Abstract

There is great potential for practical applications of visible-light photocatalysts with magnetic and Fenton-like properties. In this study, a reduced graphene oxide/cobalt ferrite/zero valent iron (rGO/CoFe2O4/Fe) ternary material was synthesized by combining co-precipitation, hydrothermal,  and reduction with NaBH4. The as‐prepared rGO/CoFe2O4/Fe nanocomposite was characterized by FTIR, XRD, UV-Vis DRS, VSM, SEM, EDX, Raman, and BET analyses. As a result, rGO sheets were effectively covered with a high density of CoFe2O4 and Fe0 (40 – 100 nm) nanoparticles. The rGO/CoFe2O4/Fe exhibited outstanding properties such as high saturated magnetization (31.18 emu/g at 11 kOe) with superparamagnetic property, high 4‐nitrophenol (4‐NP) degradation efficiency (98.78%), fast removal rate (k = 0.0361 min−1), and narrow band gap energy (1.327 eV). As an excellent magnetic visible-light photo-Fenton-like catalyst, rGO/CoFe2O4/Fe nanocomposite has the potential for practical applications in wastewater treatment.

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Published

28-08-2025

How to Cite

[1]
V. D. Thao, N. D. Sinh, N. T. Dung, V. N. Toan, and Nguyen Nhat Huy, “Effective elimination of 4‐nitrophenol in water by reduced graphene oxide/CoFe2O4/Fe nanocomposite”, Vietnam J. Sci. Technol., vol. 63, no. 4, pp. 780–791, Aug. 2025.

Issue

Vol. 63 No. 4 (2025)

Section

Environment

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