RGO supported g-C3N4/CoFe2O4 heterojunction: Visible-light-active photocatalyst for effective utilization of H2O2 to organic pollutant degradation and OH radicals production. Issue 1 (February 2021)

• Record Type: Journal Article
• Authors: Palanivel, Baskaran; Lallimathi, Mathiazhagan; Arjunkumar, B.; Shkir, Mohd.; Alshahrani, T.; Al-Namshah, Khadijah S.; Hamdy, Mohamed S.; Shanavas, S.; Venkatachalam, Munusamy; Ramalingam, G.
• Is Part Of: Journal of environmental chemical engineering. Volume 9:Issue 1(2021)
• Publication Date: 2021-02
• Subjects: Hereogeneous photocatalysis -- H2O2 -- rGO -- g-C3N4 -- CoFe2O4; Chemical engineering -- Environmental aspects -- Periodicals; Environmental engineering -- Periodicals; Chemical engineering -- Environmental aspects; Environmental engineering; Periodicals; 660.0286
• DOI: 10.1016/j.jece.2020.104698
• Languages: English
• ISSNs: 2213-2929

Abstract

Graphical abstract: Highlights: rGO supported g-C3 N4 /CoFe2 O4 nanocomposite was prepared by hydrothermal route. Synergistic effect between the nanoparticles helps to enhance the photocatalytic activity. Higher production of OH radicals are supported by elemental trapping experiment and H2 O2 consumption analysis. 4-NP organic pollutant degradation experiment was performed under various environmental condition. Abstract: Construction of visible-light active photocatalyst with robust stability and efficient activity towards organic pollutant degradation and the reactive radical's production still motivate the research in the photocatalytic environmental remediation application. Herein, the effective and recyclable rGO supported g-C3 N4 /CoFe2 O4 heterojunction was successfully prepared by the hydrothermal route. The optical property analysis demonstrated the prepared nanoparticles are visible-light active for the degradation process. Moreover, the interfacial heterojunction formation between the nanoparticles inhibits the electron-hole recombination during the photocatalysis process. This synergistic strategy of the nanocomposite helps to utilize the chemical oxidant (H2 O2 ) for bossing the OH radical production and 4-NP degradation. The ternary nanocomposite rGO/g-CN/CFO exhibits superior photocatalytic activity with a higher amount of H2 O2 consumption and robust recycle stability. Moreover, the prepared ternary nanocomposite shows the extraordinary degradation activity for a wide range of pH conditions. Hence, we believed that this ternary nanocomposite would be an effective photocatalyst for environmental remediation applications.