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Synthesis of innovative TiO2-inulin-Fe3O4 nanocomposite for removal of Ni (II), Cr (III), crystal violet and malachite green from aqueous solutions. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03186-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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Highly synergic adsorption/photocatalytic efficiency of Alginate/Bentonite impregnated TiO2 beads for wastewater treatment. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113215] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Chkirida S, Zari N, Achour R, Qaiss AEK, Bouhfid R. Efficient hybrid bionanocomposites based on iron-modified TiO 2 for dye degradation via an adsorption-photocatalysis synergy under UV-Visible irradiations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:14018-14027. [PMID: 33201510 DOI: 10.1007/s11356-020-11664-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
To overcome the titanium oxide limitations, Fe2O3- and Fe3O4-modified TiO2 (3:1) nanoparticles were synthesized by a humid and solid path, respectively. These nanoparticles were embedded in sodium alginate biopolymer to prepare beads with efficient adsorption and photocatalytic behaviors in cationic dye degradation under both UV and visible irradiations. Operating conditions were investigated such as initial methylene blue (MB) concentration and contact time to evaluate their impact on the process. The bead recycling was also scrutinized. We have come to the conclusion that Fe2O3-modified TiO2-Alg displayed superiorities, including expanded responsive wavelength range in the visible region (up to 700 nm), narrower band gap (1.79 eV), and better efficiency for MB removal in terms of adsorption capacities and photocatalytic effectiveness under both UV and visible irradiations. Furthermore, these beads can be effortlessly recovered from the reaction medium after the photocatalytic process and reused up to 5 cycles without any noteworthy decline in their initial properties.
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Affiliation(s)
- Soulaima Chkirida
- Composites and Nanocomposites Center, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center, Rue Mohamed El Jazouli, Madinat El Irfane, 10100, Rabat, Morocco
- Laboratory of Heterocyclic Organic Chemistry, Faculty of Sciences, University Mohammed V, Rabat, Morocco
| | - Nadia Zari
- Composites and Nanocomposites Center, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center, Rue Mohamed El Jazouli, Madinat El Irfane, 10100, Rabat, Morocco
| | - Redouane Achour
- Laboratory of Heterocyclic Organic Chemistry, Faculty of Sciences, University Mohammed V, Rabat, Morocco
| | - Abou El Kacem Qaiss
- Composites and Nanocomposites Center, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center, Rue Mohamed El Jazouli, Madinat El Irfane, 10100, Rabat, Morocco
| | - Rachid Bouhfid
- Composites and Nanocomposites Center, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center, Rue Mohamed El Jazouli, Madinat El Irfane, 10100, Rabat, Morocco.
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