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Bouzidi I, Fkiri A, Saidani W, Khazri A, Mezni A, Mougin K, Beyrem H, Sellami B. The pharmaceutical triclosan induced oxidative stress and physiological disorder in marine organism and nanoparticles as a potential mitigating tool. MARINE ENVIRONMENTAL RESEARCH 2024; 196:106424. [PMID: 38428315 DOI: 10.1016/j.marenvres.2024.106424] [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: 06/15/2023] [Revised: 01/05/2024] [Accepted: 02/24/2024] [Indexed: 03/03/2024]
Abstract
Environmental research plays a crucial role in formulating novel approaches to pollution management and preservation of biodiversity. This study aims to assess the potential harm of pharmaceutical triclosan (TCS) to non-target aquatic organism, the mussel Mytilus galloprovincialis. Furthermore, our study investigates the potential effectiveness of TiO2 and ZnO nanomaterials (TiO2 NPs and ZnO NPs) in degrading TCS. To ascertain the morphology, structure, and stability of the nanomaterials, several chemical techniques were employed. To evaluate the impact of TCS, TiO2 NPs, and ZnO NPs, both physiological (filtration rate (FR) and respiration rate (RR)), antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST)) activities and malondialdehyde (MDA) contents were measured in M. galloprovincialis gills and digestive gland. The mussel's responses varied depending on the contaminant, concentration, and organ, underscoring the significance of compiling these factors in ecotoxicity tests. The main toxic mechanisms of TCS and ZnO NPs at a concentration of 100 μg/L were likely to be a decrease in FR and RR, an increase in oxidative stress, and increased lipid peroxidation. Our findings indicate that a mixture of TCS and NPs has an antagonist effect on the gills and digestive gland. This effect is particularly notable in the case of TCS2 = 100 μg/L combined with TiO2 NP2 = 100 μg/L, which warrants further investigation to determine the underlying mechanism. Additionally, our results suggest that TiO2 NPs are more effective than ZnO NPs at degrading TCS, which may have practical implications for pharmaceutical control in marine ecosystems and in water purification plants. In summary, our study provides valuable information on the impact of pharmaceuticals on non-target organisms and sheds light on potential solutions for their removal from aqueous environments.
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Affiliation(s)
- Imen Bouzidi
- Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Faculté des Sciences de Bizerte, Zarzouna, Bizerte, 7021, Tunisia; Institut Supérieur de Biotechnologies de Béja, Université de Jendouba, Jendouba, 8189, Tunisia
| | - Anis Fkiri
- Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, 7021, Tunisia
| | - Wiem Saidani
- Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Faculté des Sciences de Bizerte, Zarzouna, Bizerte, 7021, Tunisia
| | - Abdelhafidh Khazri
- Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Faculté des Sciences de Bizerte, Zarzouna, Bizerte, 7021, Tunisia
| | - Amine Mezni
- Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, 7021, Tunisia
| | - Karine Mougin
- Institut de Science des Matériaux, Université de Haute Alsace, IS2M-CNRS-UMR 7361, 15 Rue Jean Starcky, 68057, Mulhouse, France
| | - Hamouda Beyrem
- Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Faculté des Sciences de Bizerte, Zarzouna, Bizerte, 7021, Tunisia
| | - Badreddine Sellami
- National Institute of Marine Sciences and Technologies, Tabarka, 8110, Tunisia.
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Mao X, Hao C. Recent advances in the use of composite titanium dioxide nanomaterials in the food industry. J Food Sci 2024; 89:1310-1323. [PMID: 38343295 DOI: 10.1111/1750-3841.16968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/08/2023] [Accepted: 01/18/2024] [Indexed: 03/12/2024]
Abstract
Titanium dioxide (TiO2 ) nanomaterials have attracted significant attention due to their good biocompatibility and potential for multifunctional applications. In the last few years, there has been growing interest in the use of TiO2 nanomaterials in the food industry. However, a systematic review of the synthesis methods, properties, and applications of TiO2 nanomaterials in the food industry is lacking. In this review, we provide a summary of the synthesis and properties of TiO2 nanomaterials and their composites, with a focus on their applications in the food industry. We also discuss the potential benefits and risks of using TiO2 nanomaterials in food applications. This review aims to promote food innovation and improve food quality and safety.
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Affiliation(s)
- Xixi Mao
- School of Marxism, Jiangnan University, Wuxi, Jiangsu, China
| | - Changlong Hao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
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Othman SS, El-Waseif AAE, Hameed MA, Abbas QA. Antimicrobial behavior of nanocoated orthodontic micro-implants: An in vitro study. J Orthod Sci 2024; 13:2. [PMID: 38516118 PMCID: PMC10953694 DOI: 10.4103/jos.jos_115_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/14/2023] [Accepted: 01/08/2024] [Indexed: 03/23/2024] Open
Abstract
OBJECTIVE The need to overcome the failure of orthodontic micro-implants which might reach to 30% has led to the development of different methods, one of which is nanoparticle deposition. AIM OF STUDY To evaluate the anti-microbial efficiency of TiO2 and ZnO nanoparticles (NP) when used as a coating for orthodontic micro-implants. METHODS Thirty titanium alloy micro-implants were used in the presented study. They were divided into three groups according to the coating method and the coating materials used: the control group without surface coating; the titanium dioxide (TiO2)-coated group, in which direct current (DC) spattering was used to coat the micro-implants with a TiO2 layer; and the TiO2 and zinc oxide (TiO2ZnO)-coated group, in which the micro-implants were coated with a TiO2 layer via direct current (DC) spattering and a zinc oxide (ZnO) layer via laser vacuum. The micro-implant surfaces were characterized using scanning electron microscopy (SEM) and an energy-dispersive spectrometer (EDS). The antibacterial susceptibility was assessed using gram-positive and gram-negative bacteria. RESULTS SEM and EDS tests confirmed the coating of the micro-implants in the TiO2- and TiO2ZnO-coated groups. The micro-implants in the TiO2- and TiO2ZnO-coated groups demonstrated higher antibacterial ability than the control group. CONCLUSION This study demonstrated the significance of improving the surface of orthodontic micro-implants by coating them with TiO2 and ZnO nanoparticles to improve osseointegration and prevent biofilm formation.
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Affiliation(s)
- Samer Salim Othman
- Department of Clinical Dental Sciences, College of Dentistry, Ibnsina University of Medical and Pharmaceutical Sciences, Baghdad, Iraq
| | | | | | - Qusay Adnan Abbas
- Department of Physics, College of Sciences, Baghdad University, Baghdad, Iraq
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Shi H, Shi C, Jia Z, Zhang L, Wang H, Chen J. Titanium dioxide-based anode materials for lithium-ion batteries: structure and synthesis. RSC Adv 2022; 12:33641-33652. [PMID: 36505712 PMCID: PMC9682492 DOI: 10.1039/d2ra05442f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/08/2022] [Indexed: 11/24/2022] Open
Abstract
Lithium-ion batteries (LIBs) have high energy density, long life, good safety, and environmental friendliness, and have been widely used in large-scale energy storage and mobile electronic devices. As a cheap and non-toxic anode material for LIBs, titanium dioxide (TiO2) has a good application prospect. However, its poor electrical conductivity leads to unsatisfactory electrochemical performance, which limits its large-scale application. In this review, the structure of three TiO2 polymorphs which are widely investigated are briefly described, then the preparation and electrochemical performance of TiO2 with different morphologies, such as nanoparticles, nanowires, nanotubes, and nanospheres, and the related research on the TiO2 composite materials with carbon, silicon, and metal materials are discussed. Finally, the development trend of TiO2-based anode materials for LIBs has been briefly prospected.
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Affiliation(s)
- Huili Shi
- College of Chemistry and Chemical Engineering, Guizhou University Guiyang 550025 China
| | - Chaoyun Shi
- College of Chemistry and Chemical Engineering, Guizhou University Guiyang 550025 China
| | - Zhitong Jia
- College of Chemistry and Chemical Engineering, Guizhou University Guiyang 550025 China
| | - Long Zhang
- College of Chemistry and Chemical Engineering, Guizhou University Guiyang 550025 China
| | - Haifeng Wang
- College of Material and Metallurgy, Guizhou University Guiyang 550025 China
| | - Jingbo Chen
- College of Chemistry and Chemical Engineering, Guizhou University Guiyang 550025 China
- Collaborative Innovation Center of Guizhou Province for Efficient Utilization of Phosphorus and Fluorine Resources, Guizhou University Guiyang 550025 China
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Ben Saber N, Mezni A, Alrooqi A, Altalhi T. Facile one-pot solvothermal approach to produce inorganic hybrid TiO 2@CoTiO 3 green nano-pigment: structural, optical and photocatalytic properties. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2048020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Nesrine Ben Saber
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
| | - Amine Mezni
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
| | - Arwa Alrooqi
- Department of Chemistry, Faculty of Science, Baha University, Saudi Arabia
| | - Tariq Altalhi
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
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Hasan IMA, Tawfik AR, Assaf FH. GC/MS screening of buckthorn phytochemicals and their use to synthesize ZnO nanoparticles for photocatalytic degradation of malachite green dye in water. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:664-684. [PMID: 35100146 DOI: 10.2166/wst.2021.638] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) were biosynthesized. According to gas chromatography/mass spectrometry analysis, chalcone, the main phytochemical, is probably complexed with Zn ions that are then oxidized to ZnO NPs by atmospheric O2 during heating. The ZnO NPs were characterized by thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, and Brunauer-Emmett-Teller surface area analysis. Sphere-like ZnO NPs were formed with 11 nm mean crystallite size, 5.2 m2 g-1 surface area, and 0.02 cm3 g-1 total pore volume. The synthesized ZnO showed excellent photocatalytic degradation (96.5±0.24% in 1 hour at 25 °C) of malachite green (MG) in aqueous solutions under ultraviolet light at optimum conditions; pH 10, MG initial concentration of 20 mg L-1, and ZnO dose of 1.5 g L-1. Also, ZnO showed very good reusability (92.9± 0.2% after five runs). The experimental data obeyed pseudo-first-order kinetics (R2 = 0.92). The photocatalysis process was dependent on the following species in the order: OH. > electron/positive hole pairs > O2.-. Moreover, photodegradation efficiency decreased in the presence of CO32-, HCO3-, and Cl-, but increased in the presence of NO3- and SO42- ions. Thus, the green synthesized ZnO NPs can be applied as an efficient photocatalyst for the removal of MG from aqueous media.
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Affiliation(s)
- Ibrahem M A Hasan
- Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt E-mail:
| | - Ahmed R Tawfik
- Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt E-mail:
| | - Fawzy H Assaf
- Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt E-mail:
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Ben Saber N, Mezni A, Alrooqi A, Altalhi T. Ternary Pt@TiO2/rGO Nanocomposite to Boost Photocatalytic Activity for Environmental and Energy Use. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02001-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bouzidi I, Fkiri A, Sellami B, Harrath AH, Boufahja F, Mezni A, Vidal L, Vaulot C, Josien L, Beyrem H, Mougin K. Does the photocatalytic activity of nanoparticles protect the marine mussel Mytilus galloprovincialis from polycyclic aromatic hydrocarbon toxicity? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:44301-44314. [PMID: 33851291 DOI: 10.1007/s11356-021-13908-4] [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: 12/22/2020] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
In the present study, five NPs (containing ZnO, Au-ZnO, Cu-ZnO, TiO2, and Au-TiO2) were characterized using dynamic light scattering and transmission electron microscopy, in order to observe their behavior under environmental change. The applicability of NPs for degradation of three polycyclic aromatic hydrocarbons (PAHs), including benzo(a)pyrene, fluoranthene, and benzanthracene, using UV irradiation showed the high photocatalytic efficiency of doped NPs for the removal of the study pollutants. To predict the environmental impact and interaction between NPs and PAHs on marine organisms, Mytilus galloprovincialis mussels were exposed to concentrations of each chemical (50 and 100 μg/L) for 14 days. The mussel's response was determined using the oxidative stress biomarker approach. Measured biomarkers in the mussel's digestive gland showed possible oxidative mechanisms in a concentration-dependent manner occurring after exposure to PAHs and NPs separately. Overall, this finding provides an interesting combination to remove PAHs in water, and the incorporation of chemical element into the crystallographic structure of NPs and the combination of two different NPs to form a binary hybrid NPs are promising materials.
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Affiliation(s)
- Imen Bouzidi
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia.
- Université de Strasbourg, Université de Haute Alsace, Institut de Science des Matériaux, IS2M-CNRS-UMR 7361, 15 Rue Jean Starcky, 68057, Mulhouse, France.
| | - Anis Fkiri
- Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Faculty of Sciences of Bizerte, University of Carthage, 7021, Zarzouna, Tunis, Tunisia
| | - Badreddine Sellami
- Institut National des Sciences et Technologies de la Mer, Tabarka, Tunisia
| | - Abdel Halim Harrath
- Zoology Department, College of Science, King Saud University, Box 2455, Riyadh, 11451, Saudi Arabia
| | - Fehmi Boufahja
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia
| | - Amine Mezni
- Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Faculty of Sciences of Bizerte, University of Carthage, 7021, Zarzouna, Tunis, Tunisia
| | - Loic Vidal
- Université de Strasbourg, Université de Haute Alsace, Institut de Science des Matériaux, IS2M-CNRS-UMR 7361, 15 Rue Jean Starcky, 68057, Mulhouse, France
| | - Cyril Vaulot
- Université de Strasbourg, Université de Haute Alsace, Institut de Science des Matériaux, IS2M-CNRS-UMR 7361, 15 Rue Jean Starcky, 68057, Mulhouse, France
| | - Ludovic Josien
- Université de Strasbourg, Université de Haute Alsace, Institut de Science des Matériaux, IS2M-CNRS-UMR 7361, 15 Rue Jean Starcky, 68057, Mulhouse, France
| | - Hamouda Beyrem
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia
| | - Karine Mougin
- Université de Strasbourg, Université de Haute Alsace, Institut de Science des Matériaux, IS2M-CNRS-UMR 7361, 15 Rue Jean Starcky, 68057, Mulhouse, France
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Ben Saber N, Mezni A, Alrooqi A, Altalhi T. Facile one-pot synthesis of TiO 2@ZnTiO 3 nanocomposites with efficient photocatalytic activity. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1952251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Nesrine Ben Saber
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
- Université de Carthage, Faculté des Sciences de Bizerte, Laboratoire des composés hétéro-organiques et des matériaux nanostructurés, Zarzouna, Tunisia
| | - Amine Mezni
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
| | - Arwa Alrooqi
- Department of Chemistry, Faculty of Science, Albaha University, Al Baha Saudi Arabia
| | - Tariq Altalhi
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
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10
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Altalhi T. Rapid synthesis of TiO2 nanocrystal in aqueous solution at room temperature. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1913603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Tariq Altalhi
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
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11
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Cai Y, Yuan F, Li F, Kang H, Xue D, Huo S, Yu F, Fang J, Yang Y. Spacing prior to decorating TiO 2 nanowires with dewetted Au nanoparticles for boosting photoelectrochemical water oxidation. CrystEngComm 2021. [DOI: 10.1039/d1ce00886b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Dewetted Au nanoparticles are used as masks to space out TiO2 nanowires, which restrict the planar coalescence of nanowires and favor the successive decoration of Au nanoparticles by dewetting, thus boosting the PEC water oxidation performance.
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Affiliation(s)
- Yun Cai
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fengyu Yuan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fan Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Huihui Kang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Daxiang Xue
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Siping Huo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fengjiao Yu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jun Fang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yang Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
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Mezni A, Ben Saber N, Ibrahim MM, Shaltout AA, Mersal GAM, Mostafa NY, Alharthi S, Boukherroub R, Altalhi T. Pt–ZnO/M (M = Fe, Co, Ni or Cu): A New Promising Hybrid-Doped Noble Metal/Semiconductor Photocatalysts. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01588-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Wang Z, Song Y, Cai X, Zhang J, Tang T, Wen S. Rapid preparation of terbium-doped titanium dioxide nanoparticles and their enhanced photocatalytic performance. ROYAL SOCIETY OPEN SCIENCE 2019; 6:191077. [PMID: 31824714 PMCID: PMC6837207 DOI: 10.1098/rsos.191077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/02/2019] [Indexed: 06/10/2023]
Abstract
Further applications of photocatalysis were limited by the high recombination probability of photo-induced electron-hole pairs in traditional titanium dioxide nanoparticles (TiO2 NPs). Herein, we modified them with rare earth metal via a facile sol-gel method, using tetrabutyl titanate as a precursor and terbium (III) nitrate hexahydrate as terbium (Tb) source. The resulting samples with different Tb doping amounts (from 0 to 2%) have been characterized by X-ray diffraction, UV-visible diffuse reflectance spectroscopy, X-ray photo-electron spectroscopy and a scanning electron microscope. The photocatalytic performance of Tb-doped TiO2 was evaluated by the degradation of methylene blue. The effects of Tb doping amount and initial pH value of solution were investigated in detail. The composite with Tb doping amount of 1.0 wt% showed the highest photocatalytic performance. It exhibited approximately three times enhancement in photocatalytic activity with a reaction rate constant of 0.2314 h-1 when compared with that of commercial P25 (0.0827 h-1). In addition, it presented low toxicity on zebrafishes with 96 h-LC50 of 23.2 mg l-1, and has been proved to be reusable for at least four cycles without significant loss of photocatalytic activity. A probable photocatalytic mechanism of Tb-doped TiO2 was proposed according to the active species trapping experiments. The high photocatalytic performance, excellent reusability and low toxicity of Tb-doped TiO2 indicated that it is a promising candidate material in the future treatment of dye wastewater.
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Affiliation(s)
- Zhencui Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education and School of Tropical Medicine and Laboratory Medicine, Hainan Medical University, Haikou, Hainan 571199, People's Republic of China
- Laboratory of Environmental Monitoring, College of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, People's Republic of China
| | - Yuechao Song
- Laboratory of Environmental Monitoring, College of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, People's Republic of China
| | - Xingfei Cai
- Guangdong Tianyuan Environment Co., Ltd, Shenzhen 578061, People's Republic of China
| | - Jun Zhang
- Laboratory of Environmental Monitoring, College of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, People's Republic of China
| | - Tianle Tang
- Laboratory of Environmental Monitoring, College of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, People's Republic of China
| | - Shaobai Wen
- Key Laboratory of Tropical Translational Medicine of Ministry of Education and School of Tropical Medicine and Laboratory Medicine, Hainan Medical University, Haikou, Hainan 571199, People's Republic of China
- Laboratory of Environmental Monitoring, College of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, People's Republic of China
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Facile Synthesis of Ag/ZnO Photocatalysts on the Degradation of Diuron Herbicide Under Simulated Solar Light and the Investigation of Its Antibacterial Activity for Waste-Water Treatment. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-1044-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Lusvardi G, Barani C, Giubertoni F, Paganelli G. Synthesis and Characterization of TiO₂ Nanoparticles for the Reduction of Water Pollutants. MATERIALS 2017; 10:ma10101208. [PMID: 29053593 PMCID: PMC5667014 DOI: 10.3390/ma10101208] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 10/13/2017] [Accepted: 10/18/2017] [Indexed: 11/16/2022]
Abstract
The aim of this manuscript was the optimization of the synthesis of TiO₂ nanoparticles (TiO₂ NPs) with conditions that could be easily reproducible at the industrial level. Several procedures were tested and those with C12H28O₄Ti and CO(NH₂)₂ as precursors seemed the most promising and, consequently, were improved with different molar ratios, lower temperatures and the addition of NH₄Cl as a secondary dopant of nitrogen. The obtained samples were studied with analytical techniques such as X-ray powder diffraction (XRPD) and field emission scanning electron microscopy (FESEM). To complete the study, dye degradation and bacteriological tests were also performed. The results indicate that it is possible to obtain TiO₂ NPs at lower temperatures with respect to those used in the literature; the best candidate that could satisfy all the requirements was a sample with a molar ratio of C12H28O₄Ti:CO(NH₂)₂ at 2:1 and obtained at 50 °C.
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Affiliation(s)
- Gigliola Lusvardi
- Department of Chemistry and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
| | - Corrado Barani
- Barchemicals, Via S. Allende 14, 41051 Castelnuovo Rangone (MO), Italy.
| | | | - Giulia Paganelli
- Department of Chemistry and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
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