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Li DT, Yu H, Huang Y. Facile H 2PdCl 4-induced photoreforming of insoluble PET waste for C1-C3 compound production. Front Chem 2023; 11:1265556. [PMID: 37795385 PMCID: PMC10546182 DOI: 10.3389/fchem.2023.1265556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 08/28/2023] [Indexed: 10/06/2023] Open
Abstract
Plastic pollution has emerged as a pressing global concern, driven by the extensive production and consumption of plastic, resulting in over 8 billion tons of plastic waste generated to date. Conventional disposal methods have proven inadequate in effectively managing polymer waste, necessitating the exploration of novel techniques. Previous research has demonstrated the successful application of photoreforming (PR) in converting water-soluble oligomer fragments of plastics into valuable chemicals. However, an unresolved challenge remains in dealing with the insoluble oligomer fragments characterized by complex chemical structures and larger molecular sizes. In this study, we propose a facile approach that involves H2PdCl4-induced activation on PET substrate for PR of PET bottles. Remarkably, this method enables the production of C1-C3 compounds without the reliance on sacrificial reagents or photocatalysts. The significant findings of this study offer a practical solution to address the most formidable aspect of plastic PR, specifically targeting the insoluble oligomer fragments. Moreover, this research contributes to the advancement of effective strategies for the sustainable management of plastic waste.
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Affiliation(s)
- Dani Tong Li
- Stephen Perse Foundation, Cambridge, United Kingdom
| | - He Yu
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, PSL Research University, Sorbonne Université, Centre national de la recherche scientifique, Paris, France
| | - Ying Huang
- Key Laboratory of Industrial Equipment Quality Big Data, No.5 Electronics Research Institute of Ministry of Industry and Information Technology (MIIT), Guangzhou, China
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Li Z, Wang K, Zhang J, Chang Y, Kowalska E, Wei Z. Enhanced Photocatalytic Activity of Hierarchical Bi2WO6 Microballs by Modification with Noble Metals. Catalysts 2022; 12:130. [DOI: 10.3390/catal12020130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Visible-responsive photocatalysts for environmental purification and fuel generation are, currently, highly sought after. Among the possible candidates, Bi2WO6 (BWO) has been considered due to its efficient light harvesting, stability, and promising activities. Here, hierarchical BWO microballs have been prepared using a hydrothermal method, and additionally modified with deposits of noble metals (gold, silver, copper, palladium and platinum) by the photodeposition method. The structure, morphology, photoabsorption properties, and surface composition of bare and metal-modified BWO samples were investigated by XRD, SEM, DRS and XPS analyses. The photocatalytic activity was evaluated by the oxidative degradation of model dye (methyl orange (MO)) under UV/vis, and hydrogen generation under vis and/or UV irradiation. It was found that hierarchical morphology is detrimental for high photocatalytic activity in both tested systems, resulting in the improved degradation of MO (ca. 65% during 90 min of UV/vis irradiation), and hydrogen evolution (0.1 and 0.4 μmol h−1 under vis and UV/vis irradiation, respectively). Moreover, the type of noble metal and its properties influence the overall photocatalytic performance. It was found that, under UV/vis irradiation, only platinum accelerates hydrogen evolution, whereas under vis irradiation the activity follows the order: BWO < BWO/Cu < BWO/Ag < BWO/Pt < BWO/Pd < BWO/Au. It was concluded that zero-valent metal is recommended for high vis response, probably due to plasmonic photocatalysis, efficient light harvesting ability, and co-catalytic role.
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Bielan Z, Dudziak S, Kubiak A, Kowalska E. Application of Spinel and Hexagonal Ferrites in Heterogeneous Photocatalysis. Applied Sciences 2021; 11:10160. [DOI: 10.3390/app112110160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Semiconducting materials display unique features that enable their use in a variety of applications, including self-cleaning surfaces, water purification systems, hydrogen generation, solar energy conversion, etc. However, one of the major issues is separation of the used materials from the process suspension. Therefore, chemical compounds with magnetic properties have been proposed as crucial components of photocatalytic composites, facilitating separation and recovery of photocatalysts under magnetic field conditions. This review paper presents the current state of knowledge on the application of spinel and hexagonal ferrites in heterogeneous photocatalysis. The first part focuses on the characterization of magnetic (nano)particles. The next section presents the literature findings on the single-phase magnetic photocatalyst. Finally, the current state of scientific knowledge on the wide variety of magnetic-photocatalytic composites is presented. A key aim of this review is to indicate that spinel and hexagonal ferrites are considered as an important element of heterogeneous photocatalytic systems and are responsible for the effective recycling of the photocatalytic materials.
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Abstract
Plasmonic photocatalysts, i [...]
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Affiliation(s)
- Radim Beranek
- Institute of ElectrochemistryUlm University Albert-Einstein-Allee 47 89081 Ulm Germany
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Beranek R. Selectivity of Chemical Conversions: Do Light‐Driven Photoelectrocatalytic Processes Hold Special Promise? Angew Chem Int Ed Engl 2019; 58:16724-16729. [DOI: 10.1002/anie.201908654] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/07/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Radim Beranek
- Institute of ElectrochemistryUlm University Albert-Einstein-Allee 47 89081 Ulm Germany
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Hori H, Takase M, Takashima M, Amano F, Shibayama T, Ohtani B. Mechanism of formation, structural characteristics and photocatalytic activities of hierarchical-structured bismuth-tungstate particles. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Janczarek M, Kowalska E. On the Origin of Enhanced Photocatalytic Activity of Copper-Modified Titania in the Oxidative Reaction Systems. Catalysts 2017; 7:317. [DOI: 10.3390/catal7110317] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Choudhury SP, Bhattacharjee A. Sensing of 0.1 ppm of methanol, ethanol, and propanol vapors at 130°C by SnO2 thin film. Particulate Science and Technology 2016. [DOI: 10.1080/02726351.2016.1154909] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Ayon Bhattacharjee
- Department of Physics, National Institute of Technology Meghalaya, Shillong, India
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Du YE, Du D, Feng Q, Yang X. Delithation, Exfoliation, and Transformation of Rock-Salt-Structured Li2TiO3 to Highly Exposed {010}-Faceted Anatase. ACS Appl Mater Interfaces 2015; 7:7995-8004. [PMID: 25822787 DOI: 10.1021/acsami.5b00227] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
{010}-Facet-exposed anatase TiO2 crystals exhibit the highest photoreactivity among the exposed facets. To obtain a higher exposure rate of this facet, the work investigated the transformation of the nanosheets with cavities within the layers derived from a rock-salt-structured Li2TiO3 precursor. All the lithium ions were extracted from the precursor by H+/Li+ ion exchange in HCl aqueous solutions, and after tetramethylammonium ions were intercalated, the precursor can delaminated into the nanosheets. The [TiO3]2- nanosheets were hydrothermally treated under different temperatures and pH values. The results showed that the anatase phase was formed in a wider range of pH and temperature, compared with using nanoribbons of [Ti4O9]2- and nanosheets of [Ti1.73O4]1.07-. At low pH, [111]-faceted nanorod-shaped anatase nanocrystals were formed preferentially, and the nanocrystals preferentially grow along the [001] direction with the increase of solution pH, leading to a large percentage of {010} facets on their surface. The photocatalytic activity increases with the increase of exposure rate of {010} facets.
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Affiliation(s)
- Yi-en Du
- †Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875, China
- ‡Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu-shi, 761-0396, Japan
| | - Dejian Du
- †Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Qi Feng
- ‡Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu-shi, 761-0396, Japan
| | - Xiaojing Yang
- †Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing, 100875, China
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Kowalska E, Wei ZS, Karabiyik B, Janczarek M, Endo M, Wang KL, Rokicka P, Markowska-szczupak A, Ohtani B. Development of Plasmonic Photocatalysts for Environmental Application. ACTA ACUST UNITED AC 2014; 93:174-83. [DOI: 10.4028/www.scientific.net/ast.93.174] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Regarding catalytic and plasmonic properties of gold nanoparticles (NPs), the novel area of research on photocatalytic gold properties has been recently started. In contrast with catalytically active gold NPs, where nanosized gold is recommended, our results showed that polydispersity of deposited gold NPs on semiconducting support was beneficial for photocatalytic activity under visible light irradiation. It is thought that wide size/shape distribution of gold NPs, and thus the ability of absorption of light in a wide wavelengths range is responsible for the high level of photoactivity. Though desirable absorption properties of plasmonic photocatalysts can be easily obtained by preparation of nanoparticles of different sizes and shapes, their photocatalytic activities under visible light irradiation are still low and should be enanced. The improvement of photocatalytic activities under visible light irradiation was achieved by enlargement of interfacial contact between titania and NPs of noble metals, extension of photoabsorption ranges (by preparation of NPs of various sizes and shapes or composed of two kinds of noble metals), and by deposition of noble metals NPs on faceted titania, i.e., octahedral (OAPs) and decahedral (DAPs). Plasmonic photocatalysts composed of titania and NPs of silver, gold or copper showed also high antiseptic properties under visible light irradiation, due to possible synergism of antiseptic properties of noble metals and photodisinfection properties of photocatalyst, since reactive oxygen species or photogenerated holes are formed on the surface of irradiated semiconductor.
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Yasuda M, Tomo T, Hirata S, Shiragami T, Matsumoto T. Neighboring Hetero-Atom Assistance of Sacrificial Amines to Hydrogen Evolution Using Pt-Loaded TiO2-Photocatalyst. Catalysts 2014; 4:162-73. [DOI: 10.3390/catal4020162] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Nakamura Y, Murayama T, Ueda W. Reduced Vanadium and Molybdenum Oxides Catalyze the Equivalent Formation of Ethane and Acetaldehyde from Ethanol. ChemCatChem 2014. [DOI: 10.1002/cctc.201300991] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Fu P, Zhang P. Characterization of Pt-TiO2 film used in three formaldehyde photocatalytic degradation systems: UV254 nm, O3+UV254 nm and UV254+185 nm via X-ray photoelectron spectroscopy. Chinese Journal of Catalysis 2014. [DOI: 10.1016/s1872-2067(12)60740-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Neubert S, Ramakrishnan A, Strunk J, Shi H, Mei B, Wang L, Bledowski M, Guschin DA, Kauer M, Wang Y, Muhler M, Beranek R. Surface-Modified TiO2Photocatalysts Prepared by a Photosynthetic Route: Mechanism, Enhancement, and Limits. Chempluschem 2013; 79:163-170. [DOI: 10.1002/cplu.201300277] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 11/11/2013] [Indexed: 11/12/2022]
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Panagiotopoulou P, Karamerou EE, Kondarides DI. Kinetics and mechanism of glycerol photo-oxidation and photo-reforming reactions in aqueous TiO2 and Pt/TiO2 suspensions. Catal Today 2013. [DOI: 10.1016/j.cattod.2012.09.029] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Shiragami T, Tomo T, Matsumoto T, Yasuda M. Structural Dependence of Alcoholic Sacrificial Agents on TiO2-Photocatalytic Hydrogen Evolution. BCSJ 2013. [DOI: 10.1246/bcsj.20120274] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tsutomu Shiragami
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki
| | - Takayuki Tomo
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki
| | - Tomoko Matsumoto
- Center for Collaborative Research and Community Cooperation, University of Miyazaki
| | - Masahide Yasuda
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki
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Shiraishi Y, Fujiwara K, Sugano Y, Ichikawa S, Hirai T. N-Monoalkylation of Amines with Alcohols by Tandem Photocatalytic and Catalytic Reactions on TiO2 Loaded with Pd Nanoparticles. ACS Catal 2013. [DOI: 10.1021/cs300756f] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yasuhiro Shiraishi
- Research Center for Solar Energy
Chemistry, and Division of Chemical Engineering, Graduate School of
Engineering Science, Osaka University,
Toyonaka 560-8531, Japan
| | - Keisuke Fujiwara
- Research Center for Solar Energy
Chemistry, and Division of Chemical Engineering, Graduate School of
Engineering Science, Osaka University,
Toyonaka 560-8531, Japan
| | - Yoshitsune Sugano
- Research Center for Solar Energy
Chemistry, and Division of Chemical Engineering, Graduate School of
Engineering Science, Osaka University,
Toyonaka 560-8531, Japan
| | - Satoshi Ichikawa
- Institute for NanoScience Design, Osaka University, Toyonaka 560-8531, Japan
| | - Takayuki Hirai
- Research Center for Solar Energy
Chemistry, and Division of Chemical Engineering, Graduate School of
Engineering Science, Osaka University,
Toyonaka 560-8531, Japan
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Choi H, Chen WT, Kamat PV. Know thy nano neighbor. Plasmonic versus electron charging effects of metal nanoparticles in dye-sensitized solar cells. ACS Nano 2012; 6:4418-27. [PMID: 22494109 DOI: 10.1021/nn301137r] [Citation(s) in RCA: 173] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Neighboring metal nanoparticles influence photovoltaic and photocatalytic behavior of semiconductor nanostructures either through Fermi level equilibration by accepting electrons or inducing localized surface plasmon effects. By employing SiO(2)- and TiO(2)-capped Au nanoparticles we have identified the mechanism with which the performance of dye-sensitized solar cells (DSSC) is influenced by the neighboring metal nanoparticles. The efficiency of an N719 dye-sensitized solar cell (9.3%) increased to 10.2% upon incorporation of 0.7% Au@SiO(2) and to 9.8% upon loading of 0.7% Au@TiO(2) nanoparticles. The plasmonic effect as monitored by introducing Au@SiO(2) in DSSC produces higher photocurrent. However, Au nanoparticles undergo charge equilibration with TiO(2) nanoparticles and shift the apparent Fermi level of the composite to more negative potentials. As a result, Au@TiO(2) nanoparticle-embedded DSSC exhibit higher photovoltage. A better understanding of these two effects is crucial in exploiting the beneficial aspects of metal nanoparticles in photovoltaics.
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Affiliation(s)
- Hyunbong Choi
- Radiation Laboratory, Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
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Kowalska E, Rau S, Ohtani B. Plasmonic Titania Photocatalysts Active under UV and Visible-Light Irradiation: Influence of Gold Amount, Size, and Shape. Journal of Nanotechnology 2012; 2012:1-11. [DOI: 10.1155/2012/361853] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Plasmonic titania photocatalysts were prepared by titania modification with gold by photodeposition. It was found that for smaller amount of deposited gold (≤0.1 wt%), anatase presence and large surface area were beneficial for efficient hydrogen evolution during methanol dehydrogenation. After testing twelve amounts of deposited gold on large rutile titania, the existence of three optima for 0.5, 2 and >6 wt% of gold was found during acetic acid degradation. Under visible light irradiation, in the case of small gold NPs deposited on fine anatase titania, the dependence of photoactivity on gold amount was parabolic, and large gold amount (2 wt%), observable as an intensively coloured powder, caused photoactivity decrease. While for large gold NPs deposited on large rutile titania, the dependence represented cascade increase, due to change of size and shape of deposited gold with its amount increase. It has been thought that spherical/hemispherical shape of gold NPs, in comparison with rod-like ones, is beneficial for higher level of photoactivity under visible light irradiation. For all tested systems and regardless of deposited amount of gold, each rutile Au/TiO2photocatalyst of large gold and titania NPs exhibited much higher photoactivity than anatase Au/TiO2of small gold and titania NPs.
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Cargnello M, Gasparotto A, Gombac V, Montini T, Barreca D, Fornasiero P. Photocatalytic H
2
and Added‐Value By‐Products – The Role of Metal Oxide Systems in Their Synthesis from Oxygenates. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100532] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Matteo Cargnello
- Department of Chemical and Pharmaceutical Sciences and ICCOM CNR Trieste Research Unit, Trieste University, Via L. Giorgieri 1, 34127 Trieste, Italy, Fax: +39‐040‐5583903
| | - Alberto Gasparotto
- Department of Chemistry, Padova University and INSTM, Via F. Marzolo 1, 35131 Padova, Italy
| | - Valentina Gombac
- Department of Chemical and Pharmaceutical Sciences and ICCOM CNR Trieste Research Unit, Trieste University, Via L. Giorgieri 1, 34127 Trieste, Italy, Fax: +39‐040‐5583903
| | - Tiziano Montini
- Department of Chemical and Pharmaceutical Sciences and ICCOM CNR Trieste Research Unit, Trieste University, Via L. Giorgieri 1, 34127 Trieste, Italy, Fax: +39‐040‐5583903
| | - Davide Barreca
- CNR‐ISTM and INSTM, Department of Chemistry, Padova University, Via F. Marzolo 1, 35131 Padova, Italy, Fax: +39‐049‐8275161
| | - Paolo Fornasiero
- Department of Chemical and Pharmaceutical Sciences and ICCOM CNR Trieste Research Unit, Trieste University, Via L. Giorgieri 1, 34127 Trieste, Italy, Fax: +39‐040‐5583903
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Zhao X, Wang L, Xu X, Lei X, Xu S, Zhang F. Fabrication and photocatalytic properties of novel ZnO/ZnAl2O4 nanocomposite with ZnAl2O4 dispersed inside ZnO network. AIChE J 2011. [DOI: 10.1002/aic.12597] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Affiliation(s)
- Xiaobo Chen
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Shaohua Shen
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Liejin Guo
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Samuel S. Mao
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
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Shiraishi Y, Sugano Y, Tanaka S, Hirai T. One-Pot Synthesis of Benzimidazoles by Simultaneous Photocatalytic and Catalytic Reactions on Pt@TiO2 Nanoparticles. Angew Chem Int Ed Engl 2010; 49:1656-60. [PMID: 20112317 DOI: 10.1002/anie.200906573] [Citation(s) in RCA: 177] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yasuhiro Shiraishi
- Research Center for Solar Energy Chemistry and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan.
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Shiraishi Y, Sugano Y, Tanaka S, Hirai T. One-Pot Synthesis of Benzimidazoles by Simultaneous Photocatalytic and Catalytic Reactions on Pt@TiO2 Nanoparticles. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906573] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Suprabha T, Roy HG, Thomas J, Praveen Kumar K, Mathew S. Microwave-Assisted Synthesis of Titania Nanocubes, Nanospheres and Nanorods for Photocatalytic Dye Degradation. Nanoscale Res Lett 2008; 4:144-152. [PMID: 20596288 PMCID: PMC2894357 DOI: 10.1007/s11671-008-9214-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Accepted: 11/11/2008] [Indexed: 05/06/2023]
Abstract
TiO(2) nanostructures with fascinating morphologies like cubes, spheres, and rods were synthesized by a simple microwave irradiation technique. Tuning of different morphologies was achieved by changing the pH and the nature of the medium or the precipitating agent. As-synthesized titania nanostructures were characterized by X-ray diffraction (XRD), UV-visible spectroscopy, infrared spectroscopy (IR), BET surface area, photoluminescence (PL), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and atomic force microscopy (AFM) techniques. Photocatalytic dye degradation studies were conducted using methylene blue under ultraviolet light irradiation. Dye degradation ability for nanocubes was found to be superior to the spheres and the rods and can be attributed to the observed high surface area of nanocubes. As-synthesized titania nanostructures have shown higher photocatalytic activity than the commercial photocatalyst Degussa P25 TiO(2).
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Affiliation(s)
- T Suprabha
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India
| | - Haizel G Roy
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India
| | - Jesty Thomas
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India
| | - K Praveen Kumar
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India
| | - Suresh Mathew
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India
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Hirakawa T, Daimon T, Kitazawa M, Ohguri N, Koga C, Negishi N, Matsuzawa S, Nosaka Y. An approach to estimating photocatalytic activity of TiO2 suspension by monitoring dissolved oxygen and superoxide ion on decomposing organic compounds. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2007.03.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Dey GR, Pushpa KK. Methane generated during photocatalytic redox reaction of alcohols on TiO2 suspension in aqueous solutions. Res Chem Intermed 2006. [DOI: 10.1163/156856706778606462] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Wakasa M, Ishii N, Okano M. Magnetic field effect on photocatalytic decomposition reaction of tert-butanol with platinized TiO2 particles. CR CHIM 2006. [DOI: 10.1016/j.crci.2005.02.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lin CH, Lee CH, Chao JH, Kuo CY, Cheng YC, Huang WN, Chang HW, Huang YM, Shih MK. Photocatalytic Generation of H2 Gas from Neat Ethanol over Pt/TiO2 Nanotube Catalysts. Catal Letters 2004. [DOI: 10.1007/s10562-004-6450-x] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Blaková A, Csölleová L, Brezová V. Effect of light sources on the phenol degradation using Pt/TiO2 photocatalysts immobilized on glass fibres. J Photochem Photobiol A Chem 1998; 113:251-6. [DOI: 10.1016/s1010-6030(97)00341-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Brezová V, Blažková A, Karpinský Ľ, Grošková J, Havlínová B, Jorík V, Čeppan M. Phenol decomposition using Mn+/TiO2 photocatalysts supported by the sol-gel technique on glass fibres. J Photochem Photobiol A Chem 1997. [DOI: 10.1016/s1010-6030(97)00121-4] [Citation(s) in RCA: 99] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ohtani B, Ogawa Y, Nishimoto SI. Photocatalytic Activity of Amorphous−Anatase Mixture of Titanium(IV) Oxide Particles Suspended in Aqueous Solutions. J Phys Chem B 1997. [DOI: 10.1021/jp962702+] [Citation(s) in RCA: 698] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ohtani B, Iwai K, Nishimoto SI, Sato S. Role of Platinum Deposits on Titanium(IV) Oxide Particles: Structural and Kinetic Analyses of Photocatalytic Reaction in Aqueous Alcohol and Amino Acid Solutions. J Phys Chem B 1997. [DOI: 10.1021/jp962060q] [Citation(s) in RCA: 213] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bunsho Ohtani
- Contribution from the Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan, and Catalysis Research Center, Hokkaido University, Sapporo 060, Japan
| | - Kunihiro Iwai
- Contribution from the Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan, and Catalysis Research Center, Hokkaido University, Sapporo 060, Japan
| | - Sei-ichi Nishimoto
- Contribution from the Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan, and Catalysis Research Center, Hokkaido University, Sapporo 060, Japan
| | - Shinri Sato
- Contribution from the Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan, and Catalysis Research Center, Hokkaido University, Sapporo 060, Japan
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Ohtani B, Kawaguchi J, Kozawa M, Nakaoka Y, Nosaka Y, Nishimoto S. Effect of platinum loading on the photocatalytic activity of cadmium(II) sulfide particles suspended in aqueous amino acid solutions. J Photochem Photobiol A Chem 1995. [DOI: 10.1016/1010-6030(95)04084-s] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Park KH, Joo HS, Ahn KI, Jun K. One step synthesis of 4-ethoxy-1,2,3,4-tetrahydroquinoline from nitroarene and ethanol: A TiO2 mediated photocatalytic reaction. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)01204-u] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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