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Z-Scheme G-C3n4/Fe3o4/Ag3po4 @Sep Magnetic Nanocomposites As Heterojunction Photocatalysts for Green Malachite Degradation and Dynamic Molecular Studies Publisher



Haounati R1 ; Ighnih H1 ; Ouachtak H1, 2 ; Malekshah RE3 ; Hafid N4 ; Jada A5, 6 ; Ait Addi A1
Authors
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Authors Affiliations
  1. 1. Laboratory of Organic and Physical Chemistry, Faculty of Science, Ibn Zohr University, Agadir, Morocco
  2. 2. Department of Applied Chemistry, Faculty of Applied Sciences, Ibn Zohr University, Ait Melloul, Morocco
  3. 3. Medical Biomaterial Research Centre (MBRC), Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Center For Education & Training Profession Souss Massa, Morocco
  5. 5. Institute of Materials Science of Mulhouse (IS2M), Haute Alsace University, Mulhouse, 68100, France
  6. 6. Strasbourg University, Strasbourg, 67081, France

Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects Published:2023


Abstract

In this study, we successfully prepared a Z-scheme heterostructures’ nanocomposite using a co-precipitation method. The nanocomposite was characterized using several techniques, and the results showed that the surface of sepiolite was occupied by Fe3O4, Ag3PO4, and g-C3N4 nanoparticles. The photocatalytic performance of the g-C3N4/Fe3O4/Ag3PO4 @Sep nanocomposite was found to be significantly better than that of pure g-C3N4, g-C3N4 @Sep, and g-C3N4/Ag3PO4 @Sep. The enhancement in photocatalytic activity was attributed to the synergistic effects of the Z-scheme heterojunction construction, which improved light usage and charge carrier migration rate. The nanocomposite also exhibited good stability and reusability even after four cycles, as it was confirmed by MD calculations. Additionally, the DFT-D correction was used to optimize all the structures, and the MG adsorption was investigated using the adsorption locator module, suggesting the thermodynamic stability of the system. Overall, this study provides important insights into the design and synthesis of Z-scheme nanocomposite heterojunctions for efficient photocatalytic applications. © 2023 Elsevier B.V.