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Haruna A, Chong FK, Ho YC, Merican ZMA. Preparation and modification methods of defective titanium dioxide-based nanoparticles for photocatalytic wastewater treatment-a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:70706-70745. [PMID: 36044146 DOI: 10.1007/s11356-022-22749-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
The rapid population growth and industrial expansion worldwide have created serious water contamination concerns. To curb the pollution issue, it has become imperative to use a versatile material for the treatment. Titanium dioxide (TiO2) has been recognized as the most-studied nanoparticle in various fields of science and engineering due to its availability, low cost, efficiency, and other fascinating properties with a wide range of applications in modern technology. Recent studies revealed the photocatalytic activity of the material for the treatment of industrial effluents to promote environmental sustainability. With the wide band gap energy of 3.2 eV, TiO2 can be activated under UV light; thus, many strategies have been proposed to extend its photoabsorption to the visible light region. In what follows, this has generated increasing attention to study its characteristics and structural modifications in different forms for photocatalytic applications. The present review provides an insight into the understanding of the synthesis methods of TiO2, the current progress in the treatment techniques for the degradation of wide environmental pollutants employing modified TiO2 nanoparticles, and the factors affecting its photocatalytic activities. Further, recent developments in using titania for practical applications, the approach for designing novel nanomaterials, and the prospects and opportunities in this exciting area have been discussed.
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Affiliation(s)
- Abdurrashid Haruna
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia.
- Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria.
- Centre of Innovative Nanostructures & Nanodevices (COINN), Institute of Autonomous System, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia.
| | - Fai-Kait Chong
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
- Centre of Innovative Nanostructures & Nanodevices (COINN), Institute of Autonomous System, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia
| | - Yeek-Chia Ho
- Civil and Environmental Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
- Centre for Urban Resource Sustainability, Institute for Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Zulkifli Merican Aljunid Merican
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
- Institute of Contaminant Management for Oil & Gas, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
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Liu Y, Lai M, Long L, Zhang Y, Luo L, Shen F, Zhang X, Zhang S, Deng S, Chen X. Photonic TiO 2 photoelectrodes for environmental protections: Can color be used as a quick selection indicator for photoelectrocatalytic performance? JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122867. [PMID: 33027876 DOI: 10.1016/j.jhazmat.2020.122867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 04/05/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
Colored photonic TiO2 photoelectrodes have been prepared by a simple anodizing-annealing method. Traditionally, the photoelectrocatalytic (PEC) properties of the film are obtained by measuring the actual decomposition of organic pollutants under ultraviolet or visible light, which may take tens of minutes or even hours. Here, through the combined analysis of the apparent features and PEC properties, we found that the structure would affect the color and optical performance, and the films with different colors showed different PEC performance. Interestingly, after repeated verifications, we got a rule that the PEC performance of the TiO2 films decreased in the order with typical color of yellow, blue-green, dark yellow, blue, yellow-grey, and purple. Therefore, we provide a new idea for the visualization screening of PEC performance for the film photoelectrodes, that is, color can be used as a quick selection indicator for TiO2 films.
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Affiliation(s)
- Yan Liu
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China
| | - Min Lai
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China
| | - Lulu Long
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China
| | - Yanzong Zhang
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China.
| | - Ling Luo
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China
| | - Fei Shen
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China
| | - Xiaohong Zhang
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China
| | - Shirong Zhang
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China
| | - Shihuai Deng
- College of Environment, Sichuan Agricultural University, 211 Huiming Road, Wenjiang District, Chengdu, Sichuan 611130, China
| | - Xiaobo Chen
- Department of Chemistry, University of Missouri-Kansas City, Kansas City, MO 64110, USA.
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Etaiw SEH, Abd El-Aziz DM, Elzeny I. Nano-architecture cobalt (III) supramolecular coordination polymer based on host-guest recognition as an effective catalyst for phenolic degradation and chemical sensor. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Zimbone M, Cacciato G, Spitaleri L, Egdell RG, Grimaldi MG, Gulino A. Sb-Doped Titanium Oxide: A Rationale for Its Photocatalytic Activity for Environmental Remediation. ACS OMEGA 2018; 3:11270-11277. [PMID: 31459235 PMCID: PMC6645530 DOI: 10.1021/acsomega.8b01452] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/05/2018] [Indexed: 05/12/2023]
Abstract
The problem of water purification is one of the most urgent issues in developing countries, where large infrastructures and energy resources are limited. Among the possibilities for a cheap route to clean water, photocatalytic materials in the form of coatings or nanostructures are among the most promising. The most widely studied photocatalytic material is titanium dioxide (TiO2). Here, we investigate the photocatalytic properties of 1.5% Sb-doped TiO2 and laser-irradiated Sb-doped TiO x . Calcined Sb-doped TiO2 was found to adopt the rutile structure, but it turned amorphous after laser irradiation. Photocatalytic tests for Sb-doped TiO2 showed an activity 1 order of magnitude higher than that of an undoped TiO2 control sample under both ultraviolet and visible irradiation. A further sizeable enhancement resulted from laser irradiation. The increased photocatalytic activity is ascribed to both enhanced visible region absorption associated with Sb-induced lone pair surface electronic states and trapping of the holes at the lone pair surface sites, thus inhibiting the recombination of the electrons and holes generated in the initial photoexcitation step. This study shows the first rationalization of the photocatalytic properties of Sb-TiO2 in terms of its electronic structure.
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Affiliation(s)
| | | | - Luca Spitaleri
- Dipartimento
di Scienze Chimiche and INSTM, UdR of Catania, Viale Andrea Doria 6, 95123 Catania, Italy
| | - Russell G. Egdell
- Department
of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K.
| | - Maria Grazia Grimaldi
- CNR-IMM,
and Dipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123 Catania, Italy
| | - Antonino Gulino
- Dipartimento
di Scienze Chimiche and INSTM, UdR of Catania, Viale Andrea Doria 6, 95123 Catania, Italy
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