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Samarasinghe LV, Muthukumaran S, Baskaran K. Recent advances in visible light-activated photocatalysts for degradation of dyes: A comprehensive review. CHEMOSPHERE 2024; 349:140818. [PMID: 38056717 DOI: 10.1016/j.chemosphere.2023.140818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
The rapid development in industrialization and urbanization coupled with an ever-increasing world population has caused a tremendous increase in contamination of water resources globally. Synthetic dyes have emerged as a major contributor to environmental pollution due to their release in large quantities into the environment, especially owing to their high demand in textile, cosmetics, clothing, food, paper, rubber, printing, and plastic industries. Photocatalytic treatment technology has gained immense research attention for dye contaminated wastewater treatment due to its environment-friendliness, ability to completely degrade dye molecules using light irradiation, high efficiency, and no generation of secondary waste. Photocatalytic technology is evolving rapidly, and the foremost goal is to synthesize highly efficient photocatalysts with solar energy harvesting abilities. The current review provides a comprehensive overview of the most recent advances in highly efficient visible light-activated photocatalysts for dye degradation, including methods of synthesis, strategies for improving photocatalytic activity, regeneration and their performance in real industrial effluent. The influence of various operational parameters on photocatalytic activity are critically evaluated in this article. Finally, this review briefly discusses the current challenges and prospects of visible-light driven photocatalysts. This review serves as a convenient and comprehensive resource for comparing and studying the fundamentals and recent advancements in visible light photocatalysts and will facilitate further research in this direction.
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Affiliation(s)
| | - Shobha Muthukumaran
- Institute for Sustainability Industries and Liveable Cities, College of Sport, Health & Engineering, Victoria University, Melbourne, VIC, 8001, Australia
| | - Kanagaratnam Baskaran
- Faculty of Science, Engineering and Built Environment, Deakin University, Victoria, 3216, Australia
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Al-Mushki AAA, Ahmed AAA, Abdulwahab AM, Qaid SAS, Alzayed NS, Shahabuddin M, Abduljalil JMA, Saad FAA. Effect of the molar ratio of (Ni 2+ and Fe 3+) on the magnetic, optical and antibacterial properties of ternary metal oxide CdO-NiO-Fe 2O 3 nanocomposites. Sci Rep 2023; 13:9021. [PMID: 37270550 DOI: 10.1038/s41598-023-36262-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023] Open
Abstract
In this work, the effect of the molar ratio of (Ni2+ and Fe3+) on the properties of CdO-NiO-Fe2O3 nanocomposites was investigated. The synthesis of CdO-NiO-Fe2O3 nanocomposites was carried out by self-combustion. XRD, UV-Vis, PL and VSM were used to describe the physical properties of the materials. The results showed significant progress in structural and optical properties supporting antibacterial activity. For all samples, the particle size decreased from 28.96 to 24.95 nm with increasing Ni2+ content and decreasing Fe3+ content, as shown by the XRD pattern, which also shows the crystal structure of cubic CdO, cubic NiO, and cubic γ-Fe2O3 spinel. The Ni2+ and Fe3+ contents in the CdO-NiO-Fe2O3 nanocomposites have also been shown to enhance the ferromagnetic properties. Due to the significant coupling between Fe2O3 and NiO, the coercivity Hc values of the samples increase from 66.4 to 266 Oe. The potential of the nanocomposites for antibacterial activity was investigated against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa, Escherichia coli, and Moraxella catarrhalis) bacteria. Comparison of P. aeruginosa with E. coli, S. aureus and M. catarrhalis showed that it has a stronger antibacterial activity with a ZOI of 25 mm.
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Affiliation(s)
- Asma A A Al-Mushki
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Abdullah A A Ahmed
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen.
| | - A M Abdulwahab
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Salem A S Qaid
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Nasser S Alzayed
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mohammed Shahabuddin
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Jameel M A Abduljalil
- Department of Biology, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Fuad A A Saad
- Department of Biology, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
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