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Sacco N, Iguini A, Gamba I, Marchesini FA, García G. Pd:In-Doped TiO 2 as a Bifunctional Catalyst for the Photoelectrochemical Oxidation of Paracetamol and Simultaneous Green Hydrogen Production. Molecules 2024; 29:1073. [PMID: 38474584 DOI: 10.3390/molecules29051073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/24/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
The integration of clean energy generation with wastewater treatment holds promise for addressing both environmental and energy concerns. Focusing on photocatalytic hydrogen production and wastewater treatment, this study introduces PdIn/TiO2 catalysts for the simultaneous removal of the pharmaceutical contaminant paracetamol (PTM) and hydrogen production. Physicochemical characterization showed a high distribution of Pd and In on the support as well as a high interaction with it. The Pd and In deposition enhance the light absorption capability and significantly improve the hydrogen evolution reaction (HER) in the absence and presence of paracetamol compared to TiO2. On the other hand, the photoelectroxidation of PTM at TiO2 and PdIn/TiO2 follows the full mineralization path and, accordingly, is limited by the adsorption of intermediate species on the electrode surface. Thus, PdIn-doped TiO2 stands out as a promising photoelectrocatalyst, showcasing enhanced physicochemical properties and superior photoelectrocatalytic performance. This underscores its potential for both environmental remediation and sustainable hydrogen production.
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Affiliation(s)
- Nicolás Sacco
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE (UNL-CONICET), Facultad de Ingeniería Química, Santiago del Estero 2829, Santa Fe 3000, Argentina
| | - Alexander Iguini
- Departamento de Química, Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna (ULL), P.O. Box 456, 38200 La Laguna, Spain
| | - Ilaria Gamba
- Departamento de Química, Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna (ULL), P.O. Box 456, 38200 La Laguna, Spain
| | - Fernanda Albana Marchesini
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE (UNL-CONICET), Facultad de Ingeniería Química, Santiago del Estero 2829, Santa Fe 3000, Argentina
| | - Gonzalo García
- Departamento de Química, Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna (ULL), P.O. Box 456, 38200 La Laguna, Spain
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2
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Xu J, Olvera-Vargas H, Ou GHX, Randriamahazaka H, Lefebvre O. Hybrid TiO 2/Carbon quantum dots heterojunction photoanodes for solar photoelectrocatalytic wastewater treatment. CHEMOSPHERE 2023; 341:140077. [PMID: 37690559 DOI: 10.1016/j.chemosphere.2023.140077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 08/23/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023]
Abstract
The modification of titanium dioxide (TiO2) is a strategy to maximize the utilization of sunlight. Carbon quantum dots (CQDs) are carbon nanomaterials with outstanding optical and electronic properties that are suitable for that purpose. In this work, three types of hybrid TiO2/CQD photoelectrodes were synthesized following different methods: 1) deposition of a CQD layer on top of TiO2 (labelled as TiO2-CQD); 2) deposition of a TiO2 layer on top of CQDs (labelled as CQD-TiO2) and; 3) deposition of a mixed CQD + TiO2 layer (labelled as CQD + TiO2). The photoelectrodes were investigated for the photoelectrocatalytic degradation of phenol as model pollutant under simulated solar light and TiO2-CQD showed the highest apparent reaction rate constant of kapp = 0.0117 min-1 with 40% of TOC removal in 6 h of treatment. CQDs were found to enhance photon absorption in the visible region of the electromagnetic spectrum and in turn phenol degradation by promoting the separation of photogenerated charge carriers through electron transfer via the Ti-O-C bonds formed at the TiO2-CQD interface. Finally, the performance of the TiO2-CQD photoanode was evaluated for the treatment of real wastewater from the membrane fabrication sector, confirming its photoelectrocatalytic efficiency under solar radiation with 93% of TOC removal in 8 h of treatment and kapp = 0.0058 min-1.
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Affiliation(s)
- Jianxiong Xu
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore
| | - Hugo Olvera-Vargas
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore; Instituto de Energías Renovables, Universidad Nacional Autónoma de México (IER-UNAM), Priv. Xochicalco S/N, Col. Centro, Temixco, Morelos, 62580, Mexico
| | - Gloria Hui Xin Ou
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore
| | | | - Olivier Lefebvre
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore; NUS Environmental Research Institute, National University of Singapore, #02-03, T-Lab Building 5A Engineering Drive 1, Singapore,117411.
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3
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Mbrouk O, Fawzy M, El-Shafey HM, Saif M, Abdel Mottaleb MSA, Hafez H. Viable production of hydrogen and methane from polluted water using eco-friendly plasmonic Pd-TiO 2 nanocomposites. RSC Adv 2023; 13:770-780. [PMID: 36686912 PMCID: PMC9809211 DOI: 10.1039/d2ra07442g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 12/12/2022] [Indexed: 01/04/2023] Open
Abstract
Solar-to-fuel conversion is a novel clean energy approach that has gained the interest of many researchers. Solar-driven photocatalysts have become essential to providing valuable fuel gases such as methane and hydrogen. Solar energy has emerged as a renewable, abundant energy source that can efficiently drive photochemical reactions through plasmonic photocatalysis. As a capping agent, orange peel extract was used in this study in a microwave-assisted green method to incorporate titanium dioxide with distinct amounts (3, 5, and 7 wt%) from Pd-plasmonic nanoparticles (2-5 nm). The leading role for plasmonic nanoparticles made from Pd-metal is enhancing the photocatalyst's ability to capture visible light, improving its performance. X-Ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), Brunauer, Emmett, and Teller (BET) surface area analysis, and UV-vis DRS analyses have investigated the obtained plasmonic photocatalysts' crystallographic, morphological, and optical characteristics. The UV-vis absorption spectra demonstrated the visible light absorption capacity attributed to the localized surface plasmonic resonance (LSPR) behavior of the newly formed nanoplasmonic photocatalysts. The generated Pd-TiO2 nanomaterials' photocatalytic activity has been examined and evaluated for combustible gas production, including the formation of CH4 and H2 from the photocatalytic degradation of Reactive Yellow 15 (RY) during a deoxygenated photoreaction in a homemade solar photobiogas reactor.
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Affiliation(s)
- Omar Mbrouk
- Nano-Photochemistry and Its Environmental Applications Laboratory, Environmental Studies, and Research Institute (ESRI), University of Sadat City (USC, ) P. O. 32897 Sadat City 23897 Menofia Egypt
| | - M Fawzy
- Nano-Photochemistry and Its Environmental Applications Laboratory, Environmental Studies, and Research Institute (ESRI), University of Sadat City (USC, ) P. O. 32897 Sadat City 23897 Menofia Egypt
| | - H M El-Shafey
- Nano-Photochemistry and Its Environmental Applications Laboratory, Environmental Studies, and Research Institute (ESRI), University of Sadat City (USC, ) P. O. 32897 Sadat City 23897 Menofia Egypt
| | - M Saif
- Chemistry Department, Faculty of Education, Ain Shams University Roxy Cairo Egypt
| | - M S A Abdel Mottaleb
- Nano-Photochemistry, Solar Chemistry, and Computational Chemistry Laboratories, Department of Chemistry, Faculty of Science, Ain Shams University Abbassia 11566 Cairo Egypt
| | - H Hafez
- Nano-Photochemistry and Its Environmental Applications Laboratory, Environmental Studies, and Research Institute (ESRI), University of Sadat City (USC, ) P. O. 32897 Sadat City 23897 Menofia Egypt
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Sayegh S, Tanos F, Nada A, Lesage G, Zaviska F, Petit E, Rouessac V, Iatsunskyi I, Coy E, Viter R, Damberga D, Weber M, Razzouk A, Stephan J, Bechelany M. Tunable TiO 2-BN-Pd nanofibers by combining electrospinning and atomic layer deposition to enhance photodegradation of acetaminophen. Dalton Trans 2022; 51:2674-2695. [PMID: 35088785 DOI: 10.1039/d1dt03715c] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The demand for fresh and clean water sources is increasing globally, and there is a need to develop novel routes to eliminate micropollutants and other harmful species from water. Photocatalysis is a promising alternative green technology that has shown great performance in the degradation of persistent pollutants. Titanium dioxide is the most used catalyst owing to its attractive physico-chemical properties, but this semiconductor presents limitations in the photocatalysis process due to the high band gap and the fast recombination of the photogenerated carriers. Herein, a novel photocatalyst has been developed, based on titanium dioxide nanofibers (TiO2 NFs) synthesized by electrospinning. The TiO2 NFs were coated by atomic layer deposition (ALD) to grow boron nitride (BN) and palladium (Pd) on their surface. The UV-Vis spectroscopy measurements confirmed the increase of the band gap and the extension of the spectral response to the visible range. The obtained TiO2/BN/Pd nanofibers were then tested for photocatalysis, and showed a drastic increase of acetaminophen (ACT) degradation (>90%), compared to only 20% degradation obtained with pure TiO2 after 4 h of visible light irradiation. The high photocatalytic activity was attributed to the good dispersion of Pd NPs on TiO2-BN nanofibers, leading to a higher transfer of photoexcited hole carriers and a decrease of photogenerated electron-charge recombination. To confirm its reusability, recycling tests on the hybrid photocatalyst TiO2/BN/Pd have been performed, showing a good stability over 5 cycles under UV and visible light. In addition, toxicity tests as well as quenching tests were carried out to check the toxicity of the byproducts formed and to determine active species responsible for the degradation. The results presented in this work demonstrate the potential of TiO2/BN/Pd nanomaterials, and open new prospects for the preparation of tunable photocatalysts.
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Affiliation(s)
- Syreina Sayegh
- Institut Européen des Membranes, IEM UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
- Laboratoire d'Analyses Chimiques, LAC - Lebanese University, Faculty of Sciences, Jdeidet 90656, Lebanon
| | - Fida Tanos
- Institut Européen des Membranes, IEM UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
- Laboratoire d'Analyses Chimiques, LAC - Lebanese University, Faculty of Sciences, Jdeidet 90656, Lebanon
| | - Amr Nada
- Institut Européen des Membranes, IEM UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
- Department of Analysis and Evaluation, Egyptian Petroleum Research Institute, Cairo, 11727, Egypt
| | - Geoffroy Lesage
- Institut Européen des Membranes, IEM UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
| | - François Zaviska
- Institut Européen des Membranes, IEM UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
| | - Eddy Petit
- Institut Européen des Membranes, IEM UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
| | - Vincent Rouessac
- Institut Européen des Membranes, IEM UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Roman Viter
- Institut of Atomic Physics and Spectroscopy, University of Latvia, Rainis Blvd., LV-1586, Riga, Latvia
- Center for Collective Use of Scientific Equipment, Sumy State University, 31, Sanatornaya st, 40018 Sumy, Ukraine
| | - Daina Damberga
- Institut of Atomic Physics and Spectroscopy, University of Latvia, Rainis Blvd., LV-1586, Riga, Latvia
| | - Matthieu Weber
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LMGP, F-38000 Grenoble, France
| | - Antonio Razzouk
- Laboratoire d'Analyses Chimiques, LAC - Lebanese University, Faculty of Sciences, Jdeidet 90656, Lebanon
| | - Juliette Stephan
- Laboratoire d'Analyses Chimiques, LAC - Lebanese University, Faculty of Sciences, Jdeidet 90656, Lebanon
| | - Mikhael Bechelany
- Institut Européen des Membranes, IEM UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier cedex 5, France.
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Chen C, Ma Q, Liu F, Gao J, Li X, Sun S, Yao H, Liu C, Young J, Zhang W. Photocatalytically reductive defluorination of perfluorooctanoic acid (PFOA) using Pt/La 2Ti 2O 7 nanoplates: Experimental and DFT assessment. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126452. [PMID: 34198220 DOI: 10.1016/j.jhazmat.2021.126452] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
To enable efficient degradation of perfluorooctanoic acid (PFOA), we prepared and investigated a nanosheet photocatalyst (Pt/La2Ti2O7). Doping platinum nanoparticles on La2Ti2O7 varied the band structure and improved the photocatalytic activity due to the enhanced charge separation. Methanol as the electron donor and sacrificial reagent significantly promoted the photocatalytically reductive degradation of PFOA that reduced by 40% within 180 min under UV254 irradiation (1 mW∙cm2). The density functional theory calculations were used to analyze the effects of Pt doping and band structures on interfacial electron transfer and degradation pathways. As opposed to photocatalytic oxidation, this UV/Pt/La2Ti2O7/CH3OH photocatalysis could abstract electrons from methanol and convert to free reactive radicals and photo-generated electrons to reductively defluorinate PFOA and potentially other polyhalogenated or perhalogenated organic compounds.
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Affiliation(s)
- Chen Chen
- Department of Municipal and Environmental Engineering, Qingdao University of Technology, Qingdao 266033, PR China; John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Qingquan Ma
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Fangzhou Liu
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Jianan Gao
- Department of Municipal and Environmental Engineering, Qingdao University of Technology, Qingdao 266033, PR China; John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Xinyang Li
- Beijing International Scientific and Technological Cooperation Base of Water Pollution Control Techniques for Antibiotics and Resistance Genes, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Department of municipal and environmental Engineering, School of civil engineering, Beijing Jiaotong University, Beijing 100044, PR China
| | - Shaobin Sun
- Beijing International Scientific and Technological Cooperation Base of Water Pollution Control Techniques for Antibiotics and Resistance Genes, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Department of municipal and environmental Engineering, School of civil engineering, Beijing Jiaotong University, Beijing 100044, PR China
| | - Hong Yao
- Beijing International Scientific and Technological Cooperation Base of Water Pollution Control Techniques for Antibiotics and Resistance Genes, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Department of municipal and environmental Engineering, School of civil engineering, Beijing Jiaotong University, Beijing 100044, PR China
| | - Changqing Liu
- Department of Municipal and Environmental Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Joshua Young
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA.
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6
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Alonizan N, Chouiref L, Omri K, Gondal MA, Madkhali N, Ghrib T, Alhassan AI. Photocatalytic Activity, Microstructures and Luminescent Study of Ti-ZS:M Nano-composites Materials. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01598-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Gopinath KP, Madhav NV, Krishnan A, Malolan R, Rangarajan G. Present applications of titanium dioxide for the photocatalytic removal of pollutants from water: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 270:110906. [PMID: 32721341 DOI: 10.1016/j.jenvman.2020.110906] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/26/2020] [Accepted: 06/01/2020] [Indexed: 05/20/2023]
Abstract
The evolution of modern technology and industrial processes has been accompanied by an increase in the utilization of chemicals to derive new products. Water bodies are frequently contaminated by the presence of conventional pollutants such as dyes and heavy metals, as well as microorganisms that are responsible for various diseases. A sharp rise has also been observed in the presence of new compounds heretofore excluded from the design and evaluation of wastewater treatment processes, categorized as "emerging pollutants". While some are harmless, certain emerging pollutants possess the ability to cause debilitating effects on a wide spectrum of living organisms. Photocatalytic degradation has emerged as an increasingly popular solution to the problem of water pollution due to its effectiveness and versatility. The primary objective of this study is to thoroughly scrutinize recent applications of titanium dioxide and its modified forms as photocatalytic materials in the removal and control of several classes of water pollutants as reported in literature. Different structural modifications are used to enhance the performance of the photocatalyst such as doping and formation of composites. The principles of these modifications have been scrutinized and evaluated in this review in order to present their advantages and drawbacks. The mechanisms involved in the removal of different pollutants through photocatalysis performed by TiO2 have been highlighted. The factors affecting the mechanism of photocatalysis and those affecting the performance of different TiO2-based photocatalysts have also been thoroughly discussed, thereby presenting a comprehensive view of all aspects involved in the application of TiO2 to remediate and control water pollution.
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Affiliation(s)
| | - Nagarajan Vikas Madhav
- Department of Chemical Engineering, SSN College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Abhishek Krishnan
- Department of Chemical Engineering, SSN College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Rajagopal Malolan
- Department of Chemical Engineering, SSN College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Goutham Rangarajan
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Ontario, M5S 3E5, Canada
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Design and construction of a highly efficient photoelectrocatalytic system based on dual-Pd/TNAs photoelectrodes for elimination of triclosan. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116232] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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9
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Zhang R, Ye M, Yang YN, Huang R, Wang XL, Yao YF. Operando NMR study on the effect of photon flux and wavelength on photocatalytic reforming of methanol. J Catal 2020. [DOI: 10.1016/j.jcat.2019.12.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Feng Z, Zeng L, Zhang Q, Ge S, Zhao X, Lin H, He Y. In situ preparation of g-C 3N 4/Bi 4O 5I 2 complex and its elevated photoactivity in Methyl Orange degradation under visible light. J Environ Sci (China) 2020; 87:149-162. [PMID: 31791488 DOI: 10.1016/j.jes.2019.05.032] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/22/2019] [Accepted: 05/23/2019] [Indexed: 05/16/2023]
Abstract
A graphite carbon nitride (g-C3N4) modified Bi4O5I2 composite was successfully prepared in-situ via the thermal treatment of a g-C3N4/BiOI precursor at 400°C for 3 hr. The as-prepared g-C3N4/Bi4O5I2 showed high photocatalytic performance in Methyl Orange (MO) degradation under visible light. The best sample presented a degradation rate of 0.164 min-1, which is 3.2 and 82 times as high as that of Bi4O5I2 and g-C3N4, respectively. The g-C3N4/Bi4O5I2 was characterized by X-ray powder diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman, X-ray photoelectron spectroscopy (XPS), ultraviolet-visible diffuse reflectance spectra (DRS), electrochemical impedance spectroscopy (EIS) and transient photocurrent response in order to explain the enhanced photoactivity. Results indicated that the decoration with a small amount of g-C3N4 influenced the specific surface area only slightly. Nevertheless, the capability for absorbing visible light was improved measurably, which was beneficial to the MO degradation. On top of that, a strong interaction between g-C3N4 and Bi4O5I2 was detected. This interplay promoted the formation of a favorable heterojunction structure and thereby enhanced the charge separation. Thus, the g-C3N4/Bi4O5I2 composite presented greater charge separation efficiency and much better photocatalytic performance than Bi4O5I2. Additionally, g-C3N4/Bi4O5I2 also presented high stability. •O2- and holes were verified to be the main reactive species.
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Affiliation(s)
- Zhe Feng
- Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Lin Zeng
- Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Qingle Zhang
- Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Shifeng Ge
- Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Xinyue Zhao
- Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Hongjun Lin
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Yiming He
- Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China; Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China.
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11
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Poly (3, 4-ethylenedioxythiophene) modified polyvinylidene fluoride membrane for visible photoelectrocatalysis and filtration. J Colloid Interface Sci 2019; 553:220-227. [PMID: 31203006 DOI: 10.1016/j.jcis.2019.06.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/06/2019] [Accepted: 06/07/2019] [Indexed: 11/23/2022]
Abstract
A polyvinylidene fluoride (PVDF) organic conductive membrane with photoelectric activity was successfully developed via printing of oxidant (FeCl3·6H2O) layer by layer and then chemical vapor deposition (CVD) of Poly (3, 4-ethylenedioxythiophene) (PEDOT). Four kinds of membranes were prepared by changing the number of oxidant coatings layers. The structure and photoelectric properties of four membranes were well characterized. The photocurrent density of 3.7 × 10-4 A indicated that the four-oxidant coating layers membrane achieved the best performance in photo-electricity activity. A comprehensive study of degradation efficiency under different photoelectric conditions was carried out. Results showed that the photoelectrocatalytic removal of tetracycline hydrochloride was 1.6 and 7.9 times higher than that of photocatalysis and photolysis, respectively, under a voltage of 3 V assisted with visible light irradiation. The anti-interference and stability tests in continuous filtration process demonstrated that the dissolved organic matters (DOMs) can result in a 30% fluctuation on removal rate. The streaming potential tests of DOMs adsorption on membrane surface indicated that the more obvious the adsorption phenomenon was, the degradation of tetracycline hydrochloride was weaker. The degradation intermediates were identified and pathways were proposed in this work. The photoelectrocatalysis of PEDOT modified PVDF membrane provided a new potential for water purification.
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12
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Zhang B, Yang F, Liu H, Yan L, Yang W, Xu C, Huang S, Li Q, Bao W, Liu B, Li Y. Assembling Graphene-Encapsulated Pd/TiO2 Nanosphere with Hierarchical Architecture for High-Performance Visible-Light-Assisted Methanol Electro-Oxidation Material. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03619] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bing Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Fan Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Hongchen Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Linan Yan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Wang Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Chong Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Shuo Huang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Qi Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Weijie Bao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Bei Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Yongfeng Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
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13
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Oh WC, Nguyen DCT, Ullah K, Zhu L, Areerob Y. Fabrication of CdO–graphene embedded mesoporous TiO 2 composite for the visible-light response and its organic dye remediation. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1602648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Won-Chun Oh
- College of Materials Science and Engineering, Anhui University of Science & Technology, Huainan, PR China
- Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungcheongnam-do, South Korea
| | - Dinh Cung Tien Nguyen
- Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungcheongnam-do, South Korea
| | - Kefayat Ullah
- Department of Applied Physical and Material Sciences, University of Swat, Mingora, Pakistan
| | - Lei Zhu
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, China
| | - Yonrapach Areerob
- Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungcheongnam-do, South Korea
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14
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A facile strategy to synthesize Pd/TiO2 nanotube arrays with high visible light photocatalytic performance. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-018-03728-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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15
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Li H, Li Y, Wang M, Niu Z, Wang X, Hou B. Preparation and photocathodic protection property of ZnIn 2S 4/RGO/TiO 2 composites for Q235 carbon steel under visible light. NANOTECHNOLOGY 2018; 29:435706. [PMID: 30106009 DOI: 10.1088/1361-6528/aada28] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
For improving the photocathodic protection performance of TiO2 photoanode, ZnIn2S4/reduced graphene oxide (RGO)/TiO2 nanotubes (NTs) composite was synthesized by electrochemical anodizing combined with hydrothermal method. The photoelectrochemical and photocathodic protection properties of the ZnIn2S4/RGO/TiO2 composite were investigated in detail. Compared with pure TiO2 NTs, the ZnIn2S4/RGO/TiO2 composite showed a significant improvement in photocathodic protection performances. The photogenerated open circuit potential drop of ZnIn2S4/RGO/TiO2 coupled with Q235 carbon steel in 3.5 wt% NaCl solution under visible light could reach 420 mV versus saturated calomel electrode, which was more than twice as much as that of pure TiO2. The photogenerated current density of ZnIn2S4/RGO/TiO2 could reach 5.6 mA cm-2, which was twice as much as that of pure TiO2. The appearance of the adsorbed oxygen (OA) enabled the ZnIn2S4/RGO/TiO2 to have better photo-carrier separation efficiency and better photogenerated cathodic protection than pure TiO2. The present work demonstrated ZnIn2S4/RGO/TiO2 could be a potential material for photoanodes because of its better visible-light response, higher electrical conductivity and smaller charge transfer resistance.
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Affiliation(s)
- Hong Li
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, People's Republic of China
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16
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Hu YL, Ou S, Huang J, Ji H, Xiang S, Zhu Y, Chen Z, Gong C, Sun L, Lian J, Sun D, Fu Y, Ma T. ZnGaNO Photocatalyst Particles Prepared from Methane-Based Nitridation Using Zn/Ga/CO 3 LDH as Precursor. Inorg Chem 2018; 57:9412-9424. [PMID: 30028597 DOI: 10.1021/acs.inorgchem.8b01415] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Methane-based nitridation was employed to produce wurtzite zinc-gallium oxynitride (ZnGaNO) photocatalyst particles using Zn/Ga/CO3 layered double hydroxides (LDHs) as precursor. Introduction of methane to nitridation would promote the formation of Zn-O bonding and suppress shallow acceptor complexes such as V(Zn)-Ga(Zn) and Ga-Oi in ZnGaNO particles. On the other hand, high flow rate of methane would induce breaking of Ga-N bonding and enhance surface deposition of metallic Ga atoms. After loading with Rh and RuO2, ZnGaNO particles had free electron density in an order of S50 > S20 > S90 > S0, which correlated well with their photocatalytic performance upon visible-light irradiation. The best performance of the loaded S50 was ascribed to the relatively flat surface band bending of the particle. Methane-based nitridation of Zn/Ga/CO3 LDHs would provide a new route to tune the surface chemistry of ZnGaNO and enhance the photocatalytic performance to its full potential.
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Affiliation(s)
- Yan-Ling Hu
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering , Xiamen University of Technology , Xiamen , 361024 , P. R. China
| | - Shuhua Ou
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology , South China University of Technology , 381 Wushan Road, Tianhe District , Guangzhou 510641 , P. R. China
| | - Jialiang Huang
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering , Xiamen University of Technology , Xiamen , 361024 , P. R. China
| | - Huayu Ji
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering , Xiamen University of Technology , Xiamen , 361024 , P. R. China
| | - Siwan Xiang
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Xiamen University , Xiamen , 361005 , P. R. China
| | - Yuqin Zhu
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering , Xiamen University of Technology , Xiamen , 361024 , P. R. China
| | - Zhibang Chen
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology , South China University of Technology , 381 Wushan Road, Tianhe District , Guangzhou 510641 , P. R. China
| | - Cheng Gong
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Xiamen University , Xiamen , 361005 , P. R. China
| | - Lan Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Xiamen University , Xiamen , 361005 , P. R. China
| | - Jiqiong Lian
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering , Xiamen University of Technology , Xiamen , 361024 , P. R. China
| | - Dongya Sun
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering , Xiamen University of Technology , Xiamen , 361024 , P. R. China
| | - Yongsheng Fu
- Key Laboratory for Soft Chemistry and Functional Materials , Nanjing University of Science and Technology, Ministry of Education , Nanjing , 210094 , P. R. China
| | - Tongmei Ma
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology , South China University of Technology , 381 Wushan Road, Tianhe District , Guangzhou 510641 , P. R. China
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17
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Fabrication of B doped g-C3N4/TiO2 heterojunction for efficient photoelectrochemical water oxidation. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.06.090] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Yuan X, Xu Y, Meng H, Han Y, Wu J, Xu J, Zhang X. Fabrication of ternary polyaniline-graphene oxide-TiO2 hybrid films with enhanced activity for photoelectrocatalytic hydrogen production. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.10.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Leong KH, Aziz AA, Sim LC, Saravanan P, Jang M, Bahnemann D. Mechanistic insights into plasmonic photocatalysts in utilizing visible light. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:628-648. [PMID: 29527438 PMCID: PMC5827636 DOI: 10.3762/bjnano.9.59] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 01/17/2018] [Indexed: 05/08/2023]
Abstract
The utilisation of sunlight as an abundant and renewable resource has motivated the development of sustainable photocatalysts that can collectively harvest visible light. However, the bottleneck in utilising the low energy photons has led to the discovery of plasmonic photocatalysts. The presence of noble metal on the plasmonic photocatalyst enables the harvesting of visible light through the unique characteristic features of the noble metal nanomaterials. Moreover, the formation of interfaces between noble metal particles and semiconductor materials further results in the formation of a Schottky junction. Thereby, the plasmonic characteristics have opened up a new direction in promoting an alternative path that can be of value to the society through sustainable development derived through energy available for all for diverse applications. We have comprehensively prepared this review to specifically focus on fundamental insights into plasmonic photocatalysts, various synthesis routes, together with their strengths and weaknesses, and the interaction of the plasmonic photocatalyst with pollutants as well as the role of active radical generation and identification. The review ends with a pinnacle insight into future perspectives regarding realistic applications of plasmonic photocatalysts.
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Affiliation(s)
- Kah Hon Leong
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900, Kampar, Perak, Malaysia
| | - Azrina Abd Aziz
- Faculty of Engineering Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, 26300 Kuantan, Pahang, Malaysia
| | - Lan Ching Sim
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900, Kampar, Perak, Malaysia
| | - Pichiah Saravanan
- Environmental Nanotechnology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM) Dhanbad 826004, Jharkhand, India
| | - Min Jang
- Department of Environmental Engineering, Kwangwoon University, 447-1 Wolgye-Dong, Nowon-Gu, Seoul, South Korea
| | - Detlef Bahnemann
- Institut für Technische Chemie, Leibniz Universität Hannover, Callinstrasse 3, 30167 Hannover, Germany
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UV-irradiation-mediated palladium nanoparticle catalytic system: Heck and decarboxylative coupling reactions. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.07.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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21
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Yang C, Dong W, Cui G, Zhao Y, Shi X, Xia X, Tang B, Wang W. Enhanced photocatalytic activity of PANI/TiO2 due to their photosensitization-synergetic effect. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.037] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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