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Gao F, Fan S, Liu H, Hu W, Wei C, Liu H, Li X, Chen Y. Photoinduced electron transfer for improved FET performance based on the hybrid film of an amphiphilic perylene diimide and CdS. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Truong PL, Kidanemariam A, Park J. A critical innovation of photocatalytic degradation for toxic chemicals and pathogens in air. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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3
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Ji Q, Xu Z, Xiang W, Wu Y, Cheng X, Xu C, Qi C, He H, Hu J, Yang S, Li S, Zhang L. Enhancing the performance of pollution degradation through secondary self-assembled composite supramolecular heterojunction photocatalyst BiOCl/PDI under visible light irradiation. CHEMOSPHERE 2020; 253:126751. [PMID: 32302913 DOI: 10.1016/j.chemosphere.2020.126751] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/23/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
A novel n-n type inorganic/organic heterojunction of flaky-like BiOCl/PDI photocatalyst was constructed by water bath heating method. Meanwhile, a simple method - secondary self-assembly was used to prepare the BiOCl/PDI with a special band structure. The photocatalytic activities were evaluated by degrading aqueous organic pollutants under visible light (λ > 420 nm). The removal rates of 5 mg L-1 phenol (non-ionic type), methyl orange (MO, anionic type), rhodamine B (RhB, cationic type) and 10 mg L-1 RhB by secondary self-assembly BiOCl/PDI (BiOCl/PDI-2) were 8.0%, 3.4%, 27.8% and 78.9% higher than self-assembly BiOCl/PDI (BiOCl/PDI-1) under visible light (λ > 420 nm). The better photocatalytic activity for BiOCl/PDI-2 was attributed to the optimization of energy-band structures, which arose from different exposed surfaces, narrower interplanar spacing and stronger visible light absorption performance. Under acidic condition, BiOCl/PDI-2 showed a good photocatalytic activity, which was not affected by neutral ionic intensity and had good recycling properties. Moreover, the photocatalytic mechanism was explored by free radical capture test and electron paramagnetic resonance (EPR), and contribution of active species was calculated. The main active species of BiOCl/PDI-2 were ·O2-, 1O2 and h+. Our work may provide a route to design efficient inorganic/organic heterojunctions for organic pollutants degradation.
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Affiliation(s)
- Qiuyi Ji
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Zhe Xu
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Weiming Xiang
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Yijie Wu
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Xinying Cheng
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Chenmin Xu
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Chengdu Qi
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Huan He
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China; College of Ecological and Resource Engineering, Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, Fujian 354300, PR China.
| | - Jiapeng Hu
- College of Ecological and Resource Engineering, Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, Fujian 354300, PR China
| | - Shaogui Yang
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Shiyin Li
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, PR China
| | - Limin Zhang
- Green Economy Development Institute, Nanjing University of Finance and Economics, Nanjing, 210023, PR China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing, 210023, PR China.
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Du YE, Li W, Bai Y, Huangfu Z, Wang W, Chai R, Chen C, Yang X, Feng Q. Facile synthesis of TiO 2/Ag 3PO 4 composites with co-exposed high-energy facets for efficient photodegradation of rhodamine B solution under visible light irradiation. RSC Adv 2020; 10:24555-24569. [PMID: 35516206 PMCID: PMC9055145 DOI: 10.1039/d0ra04183a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 06/19/2020] [Indexed: 11/21/2022] Open
Abstract
In this study, TiO2/Ag3PO4 composites based on anatase TiO2 nanocrystals with co-exposed {101}, {010}/{100}, {001} and [111]-facets and Ag3PO4 microcrystals with irregular and cubic-like polyhedron morphologies were successfully synthesized by combining hydrothermal and ion-exchange methods. The anatase TiO2 nanocrystals with different high-energy facets were controllably prepared via hydrothermal treatment of the exfoliated [Ti4O9]2−/[Ti2O5]2− nanosheet solutions at desired pH values. The Ag3PO4 microcrystal with different morphologies was prepared via the ion-exchange method in the presence of AgNO3 and NH4H2PO4 at room temperature, which was used as a substrate to load the as-prepared anatase TiO2 nanocrystals on its surface and to form TiO2/Ag3PO4 heterostructures. The apparent rate constant of the pH 3.5-TiO2/Ag3PO4 composite was the highest at 12.0 × 10−3 min−1, which was approximately 1.1, 1.2, 1.4, 1.6, 13.3, and 24.0 fold higher than that of pH 0.5-TiO2/Ag3PO4 (10.5 × 10−3 min−1), pH 7.5-TiO2/Ag3PO4 (10.2 × 10−3 min−1), pH 11.5-TiO2 (8.8 × 10−3 min−1), Ag3PO4 (7.7 × 10−3 min−1), blank sample (0.9 × 10−3 min−1), and the commercial TiO2 (0.5 × 10−3 min−1), respectively. The pH 3.5-TiO2/Ag3PO4 composite exhibited the highest visible-light photocatalytic activity which can be attributed to the synergistic effects of its heterostructure, relatively small crystal size, large specific surface area, good crystallinity, and co-exposed high-energy {001} and [111]-facets. The as-prepared TiO2/Ag3PO4 composites still exhibited good photocatalytic activity after three successive experimental runs, indicating that they had remarkable stability. This study provides a new way for the preparation of TiO2/Ag3PO4 composite semiconductor photocatalysts with high energy crystal surfaces and high photocatalytic activity. TiO2/Ag3PO4 composites with co-exposed {101}, {010}/{100}, {001} and [111]-facets were successfully synthesized by combining hydrothermal and ion-exchange methods.![]()
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Affiliation(s)
- Yi-En Du
- School of Chemistry & Chemical Engineering, Jinzhong University Jinzhong 030619 China .,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
| | - Wanxi Li
- School of Chemistry & Chemical Engineering, Jinzhong University Jinzhong 030619 China
| | - Yang Bai
- School of Chemistry & Chemical Engineering, Jinzhong University Jinzhong 030619 China
| | - Zewen Huangfu
- School of Chemistry & Chemical Engineering, Jinzhong University Jinzhong 030619 China
| | - Weijin Wang
- School of Chemistry & Chemical Engineering, Jinzhong University Jinzhong 030619 China
| | - Ruidong Chai
- School of Chemistry & Chemical Engineering, Jinzhong University Jinzhong 030619 China
| | - Changdong Chen
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University Fushun 113001 China
| | - Xiaojing Yang
- 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
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5
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Hamrouni A, Azzouzi H, Rayes A, Palmisano L, Ceccato R, Parrino F. Enhanced Solar Light Photocatalytic Activity of Ag Doped TiO 2-Ag 3PO 4 Composites. NANOMATERIALS 2020; 10:nano10040795. [PMID: 32326155 PMCID: PMC7221970 DOI: 10.3390/nano10040795] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022]
Abstract
Composites comprised of Ag3PO4 and bare TiO2 (TiO2@Ag3PO4) or silver doped TiO2 (Ag@TiO2–Ag3PO4) have been synthesized by coupling sol–gel and precipitation methods. For the sake of comparison, also the bare components have been similarly prepared. All the samples have been characterized by X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM), Fourier transformed infrared spectroscopy (FTIR), photoelectrochemical measurements, and specific surface area (SSA) analysis. The optoelectronic and structural features of the samples have been related to their photocatalytic activity for the degradation of 4–nitrophenol under solar and UV light irradiation. Coupling Ag3PO4 with silver doped TiO2 mitigates photocorrosion of the Ag3PO4 counterpart, and remarkably improves the photocatalytic activity under solar light irradiation with respect to the components, to the TiO2–Ag3PO4 sample, and to the benchmark TiO2 Evonik P25. These features open the route to future applications of this material in the field of environmental remediation.
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Affiliation(s)
- Abdessalem Hamrouni
- Laboratoire de Recherche Catalyse et Matériaux pour l’Environnement et les Procédés URCMEP (UR11ES85), Faculté des Sciences de Gabès, Université de Gabès, Campus Universitaire Cité Erriadh, Gabès 6072, Tunisia; (A.H.); (H.A.); (A.R.)
| | - Hanen Azzouzi
- Laboratoire de Recherche Catalyse et Matériaux pour l’Environnement et les Procédés URCMEP (UR11ES85), Faculté des Sciences de Gabès, Université de Gabès, Campus Universitaire Cité Erriadh, Gabès 6072, Tunisia; (A.H.); (H.A.); (A.R.)
| | - Ali Rayes
- Laboratoire de Recherche Catalyse et Matériaux pour l’Environnement et les Procédés URCMEP (UR11ES85), Faculté des Sciences de Gabès, Université de Gabès, Campus Universitaire Cité Erriadh, Gabès 6072, Tunisia; (A.H.); (H.A.); (A.R.)
| | - Leonardo Palmisano
- Department of Engineering, University of Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy;
| | - Riccardo Ceccato
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy;
| | - Francesco Parrino
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy;
- Correspondence:
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6
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Bellardita M, Camera-Roda G, Loddo V, Parrino F, Palmisano L. Coupling of membrane and photocatalytic technologies for selective formation of high added value chemicals. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.09.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Regulska E, Rivera-Nazario DM, Karpinska J, Plonska-Brzezinska ME, Echegoyen L. Zinc Porphyrin-Functionalized Fullerenes for the Sensitization of Titania as a Visible-Light Active Photocatalyst: River Waters and Wastewaters Remediation. Molecules 2019; 24:molecules24061118. [PMID: 30901824 PMCID: PMC6471970 DOI: 10.3390/molecules24061118] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 03/17/2019] [Accepted: 03/19/2019] [Indexed: 11/24/2022] Open
Abstract
Zinc porphyrin-functionalized fullerene [C60] derivatives have been synthesized and used to prepare titania-based composites. The electrochemical properties and HOMO and LUMO levels of the photosensitizers were determined by electrochemical measurements. Raman and IR techniques were used to study chemical groups present on the titania surface. Absorption properties of the composites were measured in the solid state by diffuse reflectance UV-Vis spectra (DRS). The zeta potential and aggregate sizes were determined using dynamic light scattering (DLS) and electrophoretic light scattering (ELS) techniques. Surface areas were estimated based on Brunauer–Emmett–Teller (BET) isotherms. The photocatalytic activity of the photocatalysts was tested using two model pollutants, phenol and methylene blue. The composite with the highest photocatalytic potential (1/TiO2) was used for river and wastewater remediation. The photodegradation intermediates were identified by LC-UV/Vis-MS/MS techniques.
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Affiliation(s)
- Elzbieta Regulska
- Institute of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland.
| | | | - Joanna Karpinska
- Institute of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland.
| | - Marta Eliza Plonska-Brzezinska
- Department of Organic Chemistry, Faculty of Pharmacy with the Division of Laboratory Medicine, Medical University of Bialystok, Mickiewicza 2A, 15-222 Bialystok, Poland.
| | - Luis Echegoyen
- Department of Chemistry, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA.
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Parrino F, De Pasquale C, Palmisano L. Influence of Surface-Related Phenomena on Mechanism, Selectivity, and Conversion of TiO 2 -Induced Photocatalytic Reactions. CHEMSUSCHEM 2019; 12:589-602. [PMID: 30387918 DOI: 10.1002/cssc.201801898] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/28/2018] [Indexed: 06/08/2023]
Abstract
Heterogeneous photocatalysis is the result of an inextricable connection of several factors differently contributing to the overall process. Photon absorption is the "sine qua non" condition for the reaction to occur. In fact, photons can be considered as immaterial reactants, and all of the phenomena related to the interaction of light-matter play a prominent role. However, other factors contribute in a concerted way to address the reaction, so that the relative contribution of each of them is often difficult to evaluate. In this framework, the present paper highlights some aspects of the interaction of TiO2 surface-adsorbate species that could be underestimated and their influence on the conversion, selectivity, and mechanisms of photocatalytic reactions. To this aim, some paradigmatic examples on the adsorption of water and organics on TiO2 are reported.
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Affiliation(s)
- Francesco Parrino
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, viale delle Scienze 8, 90128, Palermo, Italy
- Dipartimento di Energia, Ingegneria dell'informazione e Modelli Matematici (DEIM), Università degli Studi di Palermo, viale delle Scienze Ed. 6, 90128, Palermo, Italy
- Dipartimento di Ingegneria Industriale (DII), Università di Trento, via Sommarive 9, 38123, Trento, Italy
| | - Claudio De Pasquale
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, viale delle Scienze 8, 90128, Palermo, Italy
| | - Leonardo Palmisano
- Dipartimento di Energia, Ingegneria dell'informazione e Modelli Matematici (DEIM), Università degli Studi di Palermo, viale delle Scienze Ed. 6, 90128, Palermo, Italy
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9
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Parrino F, Bellardita M, García-López EI, Marcì G, Loddo V, Palmisano L. Heterogeneous Photocatalysis for Selective Formation of High-Value-Added Molecules: Some Chemical and Engineering Aspects. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03093] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- F. Parrino
- “Schiavello-Grillone” Photocatalysis Group, University of Palermo, Department of Energy, Information Engineering and Mathematical Models (DEIM), Viale delle Scienze, 90128 Palermo, Italy
| | - M. Bellardita
- “Schiavello-Grillone” Photocatalysis Group, University of Palermo, Department of Energy, Information Engineering and Mathematical Models (DEIM), Viale delle Scienze, 90128 Palermo, Italy
| | - E. I. García-López
- “Schiavello-Grillone” Photocatalysis Group, University of Palermo, Department of Energy, Information Engineering and Mathematical Models (DEIM), Viale delle Scienze, 90128 Palermo, Italy
| | - G. Marcì
- “Schiavello-Grillone” Photocatalysis Group, University of Palermo, Department of Energy, Information Engineering and Mathematical Models (DEIM), Viale delle Scienze, 90128 Palermo, Italy
| | - V. Loddo
- “Schiavello-Grillone” Photocatalysis Group, University of Palermo, Department of Energy, Information Engineering and Mathematical Models (DEIM), Viale delle Scienze, 90128 Palermo, Italy
| | - L. Palmisano
- “Schiavello-Grillone” Photocatalysis Group, University of Palermo, Department of Energy, Information Engineering and Mathematical Models (DEIM), Viale delle Scienze, 90128 Palermo, Italy
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10
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Parrino F, Camera Roda G, Loddo V, Palmisano L. Green synthesis of bromine by TiO2 heterogeneous photocatalysis and/or ozone: A kinetic study. J Catal 2018. [DOI: 10.1016/j.jcat.2018.07.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Inorganic semiconductors-graphene composites in photo(electro)catalysis: Synthetic strategies, interaction mechanisms and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.06.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Lachheb H, Ajala F, Hamrouni A, Houas A, Parrino F, Palmisano L. Electron transfer in ZnO–Fe2O3 aqueous slurry systems and its effects on visible light photocatalytic activity. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01085k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The strong interactions between ZnO and Fe2O3 modify the nanocomposite's electronic structure producing efficient charge separation and superior photoactivity.
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Affiliation(s)
- H. Lachheb
- Unité de Recherche Catalyse et Matériaux pour l'Environnement et les Procédés URCMEP (UR11ES85)
- Faculté des Sciences de Gabès/Université de Gabès
- Campus Universitaire Cité Erriadh
- Gabès 6072
- Tunisia
| | - F. Ajala
- Unité de Recherche Catalyse et Matériaux pour l'Environnement et les Procédés URCMEP (UR11ES85)
- Faculté des Sciences de Gabès/Université de Gabès
- Campus Universitaire Cité Erriadh
- Gabès 6072
- Tunisia
| | - A. Hamrouni
- Unité de Recherche Catalyse et Matériaux pour l'Environnement et les Procédés URCMEP (UR11ES85)
- Faculté des Sciences de Gabès/Université de Gabès
- Campus Universitaire Cité Erriadh
- Gabès 6072
- Tunisia
| | - A. Houas
- Unité de Recherche Catalyse et Matériaux pour l'Environnement et les Procédés URCMEP (UR11ES85)
- Faculté des Sciences de Gabès/Université de Gabès
- Campus Universitaire Cité Erriadh
- Gabès 6072
- Tunisia
| | - F. Parrino
- “Schiavello-Grillone” Photocatalysis Group
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM)
- Università di Palermo
- Palermo 90128
- Italy
| | - L. Palmisano
- “Schiavello-Grillone” Photocatalysis Group
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM)
- Università di Palermo
- Palermo 90128
- Italy
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15
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Parrino F, Camera Roda G, Loddo V, Palmisano L. Elemental Bromine Production by TiO2
Photocatalysis and/or Ozonation. Angew Chem Int Ed Engl 2016; 55:10391-5. [DOI: 10.1002/anie.201603635] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 06/21/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Francesco Parrino
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM); University of Palermo; viale delle Scienze Ed. 6 90128 Palermo Italy
| | - Giovanni Camera Roda
- Department of Civil, Chemical, Environmental, and Materials Engineering; University of Bologna; via Terracini 28 40131 Bologna Italy
| | - Vittorio Loddo
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM); University of Palermo; viale delle Scienze Ed. 6 90128 Palermo Italy
| | - Leonardo Palmisano
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM); University of Palermo; viale delle Scienze Ed. 6 90128 Palermo Italy
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16
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Parrino F, Camera Roda G, Loddo V, Palmisano L. Elemental Bromine Production by TiO2
Photocatalysis and/or Ozonation. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603635] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Francesco Parrino
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM); University of Palermo; viale delle Scienze Ed. 6 90128 Palermo Italy
| | - Giovanni Camera Roda
- Department of Civil, Chemical, Environmental, and Materials Engineering; University of Bologna; via Terracini 28 40131 Bologna Italy
| | - Vittorio Loddo
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM); University of Palermo; viale delle Scienze Ed. 6 90128 Palermo Italy
| | - Leonardo Palmisano
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM); University of Palermo; viale delle Scienze Ed. 6 90128 Palermo Italy
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17
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Abd-Elaal A, Parrino F, Ciriminna R, Loddo V, Palmisano L, Pagliaro M. Alcohol-Selective Oxidation in Water under Mild Conditions via a Novel Approach to Hybrid Composite Photocatalysts. ChemistryOpen 2015; 4:779-85. [PMID: 27308204 PMCID: PMC4906505 DOI: 10.1002/open.201500110] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Indexed: 11/08/2022] Open
Abstract
The oxidation of alcohols to carbonyl compounds in a clean fashion (i.e., with water as a solvent or under solvent‐free conditions, and using O2 or H2O2 as the primary oxidant) is the subject of considerable research efforts. A new approach for the selective oxidation of soluble aromatic alcohols in water under mild conditions via a novel composite photocatalyst has been developed. The catalyst is synthesized by grafting 4‐(4‐(4‐hydroxyphenylimino)cyclohexa‐2,5dienylideneamino)phenol and silver nanoparticles onto the surface of moderately crystalline titanium dioxide. The titanium dioxide‐based composite was first extensively characterized and then employed in the catalytic oxidation of 4‐methoxybenzyl alcohol to 4‐methoxybenzaldehyde under UV irradiation in water at room temperature. The corresponding aldehyde was obtained with unprecedented high selectivity (up to 86 %). The method is general and opens the route to fabrication of photocatalytic composites based on titanium dioxide functionalized with shuttle organic molecules and metal nanoparticles for a variety of oxidative conversions.
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Affiliation(s)
- Ali Abd-Elaal
- Egyptian Petroleum Research Institute 1 Ahmed El-Zomor St. 11727 Cairo Egypt; "Schiavello-Grillone" Photocatalysis Group DEIM Università degli Studi di Palermoviale delle Scienze 90128 Palermo Italy; Istituto per lo Studio dei Materiali Nanostrutturati CNR Via U. La Malfa 153-90146 Palermo Italy
| | - Francesco Parrino
- "Schiavello-Grillone" Photocatalysis Group DEIM Università degli Studi di Palermo viale delle Scienze 90128 Palermo Italy
| | - Rosaria Ciriminna
- Istituto per lo Studio dei Materiali Nanostrutturati CNR Via U. La Malfa 153-90146 Palermo Italy
| | - Vittorio Loddo
- "Schiavello-Grillone" Photocatalysis Group DEIM Università degli Studi di Palermo viale delle Scienze 90128 Palermo Italy
| | - Leonardo Palmisano
- "Schiavello-Grillone" Photocatalysis Group DEIM Università degli Studi di Palermo viale delle Scienze 90128 Palermo Italy
| | - Mario Pagliaro
- Istituto per lo Studio dei Materiali Nanostrutturati CNR Via U. La Malfa 153-90146 Palermo Italy
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Carini Jr. G, Parrino F, Palmisano G, Scandura G, Citro I, Calogero G, Bartolotta A, Di Marco G. Nanostructured anatase TiO2 densified at high pressure as advanced visible light photocatalysts. Photochem Photobiol Sci 2015; 14:1685-93. [DOI: 10.1039/c5pp00149h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uniaxial high pressure up to 2.1 GPa on anatase TiO2 nanopowders induces structural defects, increases visible light absorption and enhances acetaldehyde production.
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Affiliation(s)
| | - Francesco Parrino
- Dipartimento Energia
- Ingegneria dell'Informazione e Modelli Matematici (DEIM)
- Università degli Studi di Palermo
- Palermo
- Italy
| | - Giovanni Palmisano
- IPCF-CNR
- 37-98158 Messina
- Italy
- Department of Chemical and Environmental Engineering
- Institute Center for Water and Environment (iWater)
| | - Gabriele Scandura
- Dipartimento Energia
- Ingegneria dell'Informazione e Modelli Matematici (DEIM)
- Università degli Studi di Palermo
- Palermo
- Italy
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