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Lincho J, Zaleska-Medynska A, Martins RC, Gomes J. Nanostructured photocatalysts for the abatement of contaminants by photocatalysis and photocatalytic ozonation: An overview. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 837:155776. [PMID: 35537515 DOI: 10.1016/j.scitotenv.2022.155776] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/30/2022] [Accepted: 05/04/2022] [Indexed: 06/14/2023]
Abstract
The water scarcity, the presence of different contaminants in the worldwide waters and wastewaters and their impacts should motivate their good elimination and water management. With this, photocatalysis and photocatalytic ozonation are strong solutions to obtain good quality reclaimed water, for different applications. Nanostructured supported photo-active catalysts, such as the TiO2, WO3 or ZnO can positively affect the performance of such technologies. Therefore, different semiconductors materials have been aroused the interest of the scientific community, mainly due to its functional properties as well as characteristics imposed by the different nanostructures. With this, this work overviews different works and perspective on the TiO2 nanotubes and other semiconductors nanostructures, with the analysis of different works from 2001 to 2022. Aspects as the substrate effect, electrolyte nature, aspect ratio, electrolyte aging, and annealing treatment but also the effect of morphology, anodization time, applied voltage, temperature and viscosity are discussed. Modification of TiO2 nanotubes is also presented in this paper. The main objective of this work is to present and discuss the key parameters and their effects on the anodization of different semiconductors, as well as the results obtained until today on the degradation of different contaminants by photocatalysis and photocatalytic ozonation, as well as their use on the treatment of real wastewater. TiO2 nanotubes present unique properties and highly ordered configuration, which motivate their use on photo-driven technologies for the pollutant's abatement, even when compared to other nanostructures. However, photocatalysts with activity on the visible range and solar radiation, such as the WO3, can present higher performance and can decrease operational costs, and must be an important source and a key to find efficient and cost-friendly solutions.
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Affiliation(s)
- João Lincho
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal
| | - Adriana Zaleska-Medynska
- Faculty of Chemistry, Department of Environmental Technology, University of Gdansk, 80-308 Gdańsk, Poland
| | - Rui C Martins
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal.
| | - João Gomes
- University of Coimbra, CIEPQPF - Chemical Engineering Processes and Forest Products Research Center, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal
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Ndabankulu VO, Maddila S, Jonnalagadda SB. Ozone facilitated degradation of caffeine using Ce-TiO 2 catalyst. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2018; 54:138-146. [PMID: 30596313 DOI: 10.1080/03601234.2018.1530549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/24/2018] [Indexed: 06/09/2023]
Abstract
The ozone initiated oxidation of 1,3,7-trimethylxanthine (caffeine), commonly found in wastewaters as model compound is reported using cerium (Ce)/titanium dioxide (TiO2) as catalyst. The effect of pH and loading of ceria on titania were investigated. Effect of reaction conditions on degradation of caffeine based on their pseudo first-order rate constants were compared. The combination of catalyst Ce-TiO2 and ozone aeration significantly enhanced the degradation of caffeine compared to uncatalysed ozonation. The oxidation of caffeine ensued via the free radical mechanism, through enhanced ozone decomposition into OH radicals. Ce/TiO2(0.5 wt%) showed good activity in degradation of caffeine at pH 6, in both natural stream and river water samples showing about 60% total organic carbon removal in 2 h ozonation period. Using liquid chromatography-mass spectroscopy, degradation products were analysed. A reaction intermediate and one final product were positively identified. Nano-catalysts with different loadings of Ce on TiO2 synthesized by sol-gel route were characterized by scanning electron microscope, transmission electron microscopy, BET and powder X-ray diffraction spectrum techniques. The results showed that the material retained a highly ordered mesoporous structure and possessed large surface area.
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Affiliation(s)
- Vuyolwethu O Ndabankulu
- a Department of Chemistry, School of Chemistry and Physics , University of KwaZulu-Natal , Durban , South Africa
| | - Suresh Maddila
- a Department of Chemistry, School of Chemistry and Physics , University of KwaZulu-Natal , Durban , South Africa
| | - Sreekantha B Jonnalagadda
- a Department of Chemistry, School of Chemistry and Physics , University of KwaZulu-Natal , Durban , South Africa
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Toledano Garcia D, Ozer LY, Parrino F, Ahmed M, Brudecki GP, Hasan SW, Palmisano G. Photocatalytic ozonation under visible light for the remediation of water effluents and its integration with an electro-membrane bioreactor. CHEMOSPHERE 2018; 209:534-541. [PMID: 29945046 DOI: 10.1016/j.chemosphere.2018.05.197] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 06/08/2023]
Abstract
Photocatalysis and photocatalytic ozonation under visible light have been applied for the purification of a complex aqueous matrix such as the grey water of Masdar City (UAE), by using N-doped brookite-rutile catalysts. Preliminary runs on 4-nitrophenol (4-NP) solutions allowed to test the reaction system in the presence of a model pollutant and to afford the relevant kinetic parameters of the process. Subsequently, the remediation of grey water effluent has been evaluated in terms of the reduction of total organic carbon (TOC) and bacterial counts. The concentration of the most abundant inorganic ionic species in the effluent has been also monitored during reaction. Photocatalytic ozonation under visible light allowed to reduce the TOC content of the grey water by ca. 60% in the optimized experimental conditions and to reduce the total bacterial count by ca. 97%. The extent of TOC mineralization reached ca. 80% when the photocatalytic ozonation occurred downstream to a preliminary electro-membrane bioreactor (eMBR). Coupling the two processes enhanced the global efficiency. In fact, the eMBR treatment lowered the turbidity and the organic load of the effluent entering the photocatalytic ozonation treatment, which in turn enhanced the extent of purification and disinfection.
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Affiliation(s)
- Diego Toledano Garcia
- Department of Chemical Engineering, Khalifa University of Science and Technology, Masdar City, PO BOX 54224, Abu Dhabi, United Arab Emirates
| | - Lütfiye Y Ozer
- Department of Chemical Engineering, Khalifa University of Science and Technology, Masdar City, PO BOX 54224, Abu Dhabi, United Arab Emirates
| | - Francesco Parrino
- Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici (DEIM), University of Palermo, Viale delle Scienze Ed. 6, Palermo, 90128, Italy
| | - Menatalla Ahmed
- Department of Chemical Engineering, Khalifa University of Science and Technology, Masdar City, PO BOX 54224, Abu Dhabi, United Arab Emirates
| | - Grzegorz Przemyslaw Brudecki
- Department of Research Laboratories, Khalifa University of Science and Technology - Masdar Institute, Masdar City, PO BOX 54224, Abu Dhabi, United Arab Emirates
| | - Shadi W Hasan
- Department of Chemical Engineering, Khalifa University of Science and Technology, Masdar City, PO BOX 54224, Abu Dhabi, United Arab Emirates
| | - Giovanni Palmisano
- Department of Chemical Engineering, Khalifa University of Science and Technology, Masdar City, PO BOX 54224, Abu Dhabi, United Arab Emirates.
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Cionti C, Della Pina C, Meroni D, Falletta E, Ardizzone S. Triply green polyaniline: UV irradiation-induced synthesis of a highly porous PANI/TiO2 composite and its application in dye removal. Chem Commun (Camb) 2018; 54:10702-10705. [DOI: 10.1039/c8cc04745f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An eco-friendly synthesis of polyaniline/TiO2 composites with good crystallinity and tailored morphology is reported for dye removal from an aqueous matrix.
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Affiliation(s)
- Carolina Cionti
- Dpt. of Chemistry
- Università degli Studi di Milano
- 20133 Milano
- Italy
- Consorzio INSTM
| | | | - Daniela Meroni
- Dpt. of Chemistry
- Università degli Studi di Milano
- 20133 Milano
- Italy
- Consorzio INSTM
| | - Ermelinda Falletta
- Dpt. of Chemistry
- Università degli Studi di Milano
- 20133 Milano
- Italy
- ISTM-CNR
| | - Silvia Ardizzone
- Dpt. of Chemistry
- Università degli Studi di Milano
- 20133 Milano
- Italy
- Consorzio INSTM
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Green and low cost tetracycline degradation processes by nanometric and immobilized TiO 2 systems. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.08.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Pargoletti E, Mostoni S, Rassu G, Pifferi V, Meroni D, Falciola L, Davoli E, Marelli M, Cappelletti G. Zn- vs Bi-based oxides for o-toluidine photocatalytic treatment under solar light. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:8287-8296. [PMID: 28160178 DOI: 10.1007/s11356-017-8430-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 01/09/2017] [Indexed: 06/06/2023]
Abstract
The photodegradation of the highly toxic o-toluidine pollutant was deeply investigated both under UV and solar irradiations by using three different semiconductors: pure ZnO, Bi-impregnated ZnO, and Bi2O3 nanopowders (synthesized by precipitating method). All the samples were deeply characterized on structural, morphological, surface, and optical points of view. The disappearance and the relative mineralization of o-toluidine molecules were followed by linear sweep voltammetry (LSV) and total organic carbon (TOC) determinations, respectively. Hence, correlations between their physico-chemical properties and the photocatalytic performances, passing from UV to solar light, were drawn and a hypothesis on the photodegradation mechanism has been proposed, on the basis of the HPLC/MS results. Bare Bi2O3 samples, due to the exploitation of both their visible light absorption and the negligible intermediates formation, resulted to be higher performing under solar irradiation than either pure or Bi-doped ZnO nanopowders. Graphical abstract.
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Affiliation(s)
- E Pargoletti
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133, Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121, Florence, Italy
| | - S Mostoni
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133, Milan, Italy
- Dipartimento di Scienza dei Materiali, Università degli Studi di Milano Bicocca, via Roberto Cozzi 55, 20125, Milan, Italy
| | - G Rassu
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133, Milan, Italy
| | - V Pifferi
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133, Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121, Florence, Italy
| | - D Meroni
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133, Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121, Florence, Italy
| | - L Falciola
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133, Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121, Florence, Italy
| | - E Davoli
- IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Via La Masa 19, 20156, Milan, Italy
| | - M Marelli
- CNR-ISTM/ISTeM, via Fantoli 15/16, 20138, Milan, Italy
| | - G Cappelletti
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133, Milan, Italy.
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121, Florence, Italy.
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Tailored routes for home-made Bi-doped ZnO nanoparticles. Photocatalytic performances towards o-toluidine, a toxic water pollutant. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2016.10.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Xiao J, Xie Y, Cao H. Organic pollutants removal in wastewater by heterogeneous photocatalytic ozonation. CHEMOSPHERE 2015; 121:1-17. [PMID: 25479808 DOI: 10.1016/j.chemosphere.2014.10.072] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 10/10/2014] [Accepted: 10/31/2014] [Indexed: 05/06/2023]
Abstract
Heterogeneous photocatalysis and ozonation are robust advanced oxidation processes for eliminating organic contaminants in wastewater. The combination of these two methods is carried out in order to enhance the overall mineralization of refractory organics. An apparent synergism between heterogeneous photocatalysis and ozonation has been demonstrated in many literatures, which gives rise to an improvement of total organic carbon removal. The present overview dissects the heterogeneous catalysts and the influences of different operational parameters, followed by the discussion on the kinetics, mechanism, economic feasibility and future trends of this integrated technology. The enhanced oxidation rate mainly results from a large amount of hydroxyl radicals generated from a synergistically induced decomposition of dissolved ozone, besides superoxide ion radicals and the photo-induced holes. Six reaction pathways possibly exist for the generation of hydroxyl radicals in the reaction mechanism of heterogeneous photocatalytic ozonation.
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Affiliation(s)
- Jiadong Xiao
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China; Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongbing Xie
- Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Beijing Engineering Research Center of Process Pollution Control, Beijing 100190, China.
| | - Hongbin Cao
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China; Beijing Engineering Research Center of Process Pollution Control, Beijing 100190, China.
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Cappelletti G, Pifferi V, Mostoni S, Falciola L, Di Bari C, Spadavecchia F, Meroni D, Davoli E, Ardizzone S. Hazardous o-toluidine mineralization by photocatalytic bismuth doped ZnO slurries. Chem Commun (Camb) 2015; 51:10459-62. [DOI: 10.1039/c5cc02620b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photocatalytic mineralization of o-toluidine in aqueous media under UV/solar irradiation was achieved by bare and bismuth doped zinc oxide nanoparticles.
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Affiliation(s)
- G. Cappelletti
- Dipartimento di Chimica
- Università degli Studi di Milano
- Milano
- Italy
| | - V. Pifferi
- Dipartimento di Chimica
- Università degli Studi di Milano
- Milano
- Italy
| | - S. Mostoni
- Dipartimento di Chimica
- Università degli Studi di Milano
- Milano
- Italy
| | - L. Falciola
- Dipartimento di Chimica
- Università degli Studi di Milano
- Milano
- Italy
| | - C. Di Bari
- Dipartimento di Chimica
- Università degli Studi di Milano
- Milano
- Italy
| | - F. Spadavecchia
- Dipartimento di Chimica
- Università degli Studi di Milano
- Milano
- Italy
| | - D. Meroni
- Dipartimento di Chimica
- Università degli Studi di Milano
- Milano
- Italy
| | - E. Davoli
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”
- Milano
- Italy
| | - S. Ardizzone
- Dipartimento di Chimica
- Università degli Studi di Milano
- Milano
- Italy
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Spadavecchia F, Ceotto M, Presti LL, Aieta C, Biraghi I, Meroni D, Ardizzone S, Cappelletti G. Second Generation Nitrogen Doped Titania Nanoparticles: A Comprehensive Electronic and Microstructural Picture. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400502] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Antonello A, Soliveri G, Meroni D, Cappelletti G, Ardizzone S. Photocatalytic remediation of indoor pollution by transparent TiO2 films. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.12.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ochiai T, Fujishima A. Photoelectrochemical properties of TiO2 photocatalyst and its applications for environmental purification. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2012. [DOI: 10.1016/j.jphotochemrev.2012.07.001] [Citation(s) in RCA: 347] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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Cappelletti G, Ardizzone S, Meroni D, Soliveri G, Ceotto M, Biaggi C, Benaglia M, Raimondi L. Wettability of bare and fluorinated silanes: a combined approach based on surface free energy evaluations and dipole moment calculations. J Colloid Interface Sci 2012; 389:284-91. [PMID: 23041024 DOI: 10.1016/j.jcis.2012.09.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 09/03/2012] [Accepted: 09/04/2012] [Indexed: 11/17/2022]
Abstract
The assessment of the surface free energy (SFE) of a material permits to control and predict a large number of physicochemical properties of a solid surface and its reactivity. Here, the surface energies of a series of bare and fluorinated silanes are determined by means of different semi-empirical models on the grounds of contact angle determinations for different solvents. Literature data are also considered in order to produce a series of films with increasing SFE. Wetting envelopes (WE) are obtained for the various surfaces in order to predict the wettability of the films by numerous commonly employed solvents. The polar and disperse components of the surface energies are obtained by the Owens-Wendt-Rabel-Kaelbe (OWRK) method; the values of the polar components are compared with gas-phase dipole moments obtained by theoretical calculations employing semi-empirical Hamiltonians. The sequences of the polar components of the SFE and of the calculated dipole moments for the different molecules are strictly the same. The interplay between theoretical and experimental approaches proves efficient in predicting the behavior of different systems and it could be employed in tuning the SFE of a solid surface with respect to its final applications.
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Affiliation(s)
- G Cappelletti
- Dipartimento di Chimica, Università di Milano, Milano, Italy.
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