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Cescon M, Stevanin C, Ardit M, Orlandi M, Martucci A, Chenet T, Pasti L, Caramori S, Cristino V. Solvothermally Grown Oriented WO 3 Nanoflakes for the Photocatalytic Degradation of Pharmaceuticals in a Flow Reactor. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:860. [PMID: 38786816 PMCID: PMC11124514 DOI: 10.3390/nano14100860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
Contamination by pharmaceuticals adversely affects the quality of natural water, causing environmental and health concerns. In this study, target drugs (oxazepam, OZ, 17-α-ethinylestradiol, EE2, and drospirenone, DRO), which have been extensively detected in the effluents of WWTPs over the past decades, were selected. We report here a new photoactive system, operating under visible light, capable of degrading EE2, OZ and DRO in water. The photocatalytic system comprised glass spheres coated with nanostructured, solvothermally treated WO3 that improves the ease of handling of the photocatalyst and allows for the implementation of a continuous flow process. The photocatalytic system based on solvothermal WO3 shows much better results in terms of photocurrent generation and photocatalyst stability with respect to state-of-the-art WO3 nanoparticles. Results herein obtained demonstrate that the proposed flow system is a promising prototype for enhanced contaminant degradation exploiting advanced oxidation processes.
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Affiliation(s)
- Mirco Cescon
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (M.C.); (V.C.)
| | - Claudia Stevanin
- Department of Environmental and Prevention Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.S.); (T.C.)
| | - Matteo Ardit
- Department of Geosciences, University of Padova, Via Gradenigo 6, 35131 Padova, Italy;
- Department of Physics and Earth Sciences, University of Ferrara, Via Saragat 1, 44121 Ferrara, Italy;
| | - Michele Orlandi
- Department of Physics, University of Trento, Via Sommarive 14, 38123 Trento, Italy;
| | - Annalisa Martucci
- Department of Physics and Earth Sciences, University of Ferrara, Via Saragat 1, 44121 Ferrara, Italy;
| | - Tatiana Chenet
- Department of Environmental and Prevention Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.S.); (T.C.)
| | - Luisa Pasti
- Department of Environmental and Prevention Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.S.); (T.C.)
| | - Stefano Caramori
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (M.C.); (V.C.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), University of Ferrara Research Unit, 44121 Ferrara, Italy
| | - Vito Cristino
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (M.C.); (V.C.)
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Piccioni A, Kopula Kesavan J, Amidani L, Mazzaro R, Berardi S, Caramori S, Pasquini L, Boscherini F. Operando double-edge high-resolution X-ray absorption spectroscopy study of BiVO 4 photoanodes. JOURNAL OF SYNCHROTRON RADIATION 2024; 31:464-468. [PMID: 38619290 DOI: 10.1107/s1600577524002741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 03/26/2024] [Indexed: 04/16/2024]
Abstract
High energy resolution fluorescence detected X-ray absorption spectroscopy is a powerful method for probing the electronic structure of functional materials. The X-ray penetration depth and photon-in/photon-out nature of the method allow operando experiments to be performed, in particular in electrochemical cells. Here, operando high-resolution X-ray absorption measurements of a BiVO4 photoanode are reported, simultaneously probing the local electronic states of both cations. Small but significant variations of the spectral lineshapes induced by the applied potential were observed and an explanation in terms of the occupation of electronic states at or near the band edges is proposed.
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Affiliation(s)
- Alberto Piccioni
- Department of Physics and Astronomy, Alma Mater Studiorum - Università di Bologna, Viale C. Berti Pichat 6/2, 40127 Bologna, Italy
| | - Jagadesh Kopula Kesavan
- Department of Physics and Astronomy, Alma Mater Studiorum - Università di Bologna, Viale C. Berti Pichat 6/2, 40127 Bologna, Italy
| | - Lucia Amidani
- The Rossendorf Beamline at the European Synchrotron Radiation Facility, Grenoble, France
| | - Raffaello Mazzaro
- Department of Physics and Astronomy, Alma Mater Studiorum - Università di Bologna, Viale C. Berti Pichat 6/2, 40127 Bologna, Italy
| | - Serena Berardi
- Dipartimento di Chimica e Scienze Parafarmaceutiche, Università di Ferrara, Italy
| | - Stefano Caramori
- Dipartimento di Chimica e Scienze Parafarmaceutiche, Università di Ferrara, Italy
| | - Luca Pasquini
- Department of Physics and Astronomy, Alma Mater Studiorum - Università di Bologna, Viale C. Berti Pichat 6/2, 40127 Bologna, Italy
| | - Federico Boscherini
- Department of Physics and Astronomy, Alma Mater Studiorum - Università di Bologna, Viale C. Berti Pichat 6/2, 40127 Bologna, Italy
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Subramanian H, Santhaseelan H, Dinakaran VT, Devendiran V, Rathinam AJ, Mahalingam A, Ramachandran SK, Muthukumarasamy A, Muthukumar K, Mathimani T. Hydrothermal synthesis of spindle structure copper ferrite-graphene oxide nanocomposites for enhanced photocatalytic dye degradation and in-vitro antibacterial activity. ENVIRONMENTAL RESEARCH 2023; 231:116095. [PMID: 37182825 DOI: 10.1016/j.envres.2023.116095] [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: 12/27/2022] [Revised: 04/10/2023] [Accepted: 05/09/2023] [Indexed: 05/16/2023]
Abstract
In this study, a one-step hydrothermal approach was used to make pure magnetic copper ferrite (CuFe2O4) and copper ferrite-graphene oxide (CuFe2O4-rGO) nanocomposites (NCs) and spinel structure CuFe2O4 with a single phase of tetragonal CuFe2O4-rGO-NCs was confirmed by the XRD. Then, characterization of CuFe2O4-rGO-NCs was done using ng Raman spectroscopy, FT-IR, TGA-DTA, EDS, SEM, and TEM. The synthesized NCs was exposed to UV light to evaluate its photocatalytic activity for the degradation of methylene blue (MB) and rhodamine B (RhB) with CuFe2O4 and CuFe2O4-rGO-NCs, respectively. The catalyst CuFe2O4-rGO-NCs provided higher degradation of MB (94%) than for RhB (86%) under UV light irradiation compared to CuFe2O4. Further, the antibacterial activities of CuFe2O4-NPs and CuFe2O4-rGO-NCs were tested against Gram-negative and -positive bacterial pathogens such as Vibrio cholera (V. cholera); Escherichia coli (E. coli); Pseudomonas aeruginosa (P. aeruginosa); Bacillus subtilis (B. subtilis); Staphylococcus aureus (S. aureus); and Staphylococcus epidermidis (S. epidermidis) by well diffusion method. At 100 μg/mL concentrations of CuFe2O4-rGO-NCs, maximal growth inhibition was shown against E. coli (18 mm) and minimum growth inhibition against S. epidermidis (12 mm). This study suggests that CuFe2O4-rGO-NCs as a high-efficacy antibacterial material and plays an important role in exhibiting higher sensitivity depending on concentrations. The results encourage that the synthesized CuFe2O4-rGO-NCs can be used as a promising material for the antibacterial activity and also for dye degradation in the water/wastewater treatment plants.
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Affiliation(s)
- Harinee Subramanian
- Department of Physics, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India
| | - Henciya Santhaseelan
- Department of Marine Science, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India
| | | | - Velmurugan Devendiran
- Department of Marine Science, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India
| | - Arthur James Rathinam
- Department of Marine Science, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India
| | - Ashok Mahalingam
- Department of Physics, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India
| | - Sathish Kumar Ramachandran
- Department of Biomaterials, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, Tamil Nadu, India
| | - Arulmozhi Muthukumarasamy
- Department of Petrochemical Technology, University College of Engineering, Bharathidasan Institute of Technology Campus, Anna University, Tiruchirappalli, 620 024, Tamil Nadu, India
| | - Krishnan Muthukumar
- Department of Petrochemical Technology, University College of Engineering, Bharathidasan Institute of Technology Campus, Anna University, Tiruchirappalli, 620 024, Tamil Nadu, India.
| | - Thangavel Mathimani
- Department of Energy and Environment, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India.
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Synthesis of Bimetallic BiPO 4/ZnO Nanocomposite: Enhanced Photocatalytic Dye Degradation and Antibacterial Applications. Int J Mol Sci 2023; 24:ijms24031947. [PMID: 36768271 PMCID: PMC9916082 DOI: 10.3390/ijms24031947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/22/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023] Open
Abstract
Multidrug-resistant strains (MDRs) are becoming a major concern in a variety of settings, including water treatment and the medical industry. Well-dispersed catalysts such as BiPO4, ZnO nanoparticles (NPs), and different ratios of BiPO4/ZnO nanocomposites (NCs) were synthesized through hydrothermal treatments. The morphological behavior of the prepared catalysts was characterized using XRD, Raman spectra, PL, UV-Vis diffuse reflectance spectroscopy (UV-DRS), SEM, EDX, and Fe-SEM. MDRs were isolated and identified by the 16s rDNA technique as belonging to B. flexus, B. filamentosus, P. stutzeri, and A. baumannii. The antibacterial activity against MDRs and the photocatalytic methylene blue (MB) dye degradation activity of the synthesized NPs and NCs were studied. The results demonstrate that the prepared BiPO4/ZnO-NCs (B1Z4-75:300; NCs-4) caused a maximum growth inhibition of 20 mm against A. baumannii and a minimum growth inhibition of 12 mm against B. filamentosus at 80 μg mL-1 concentrations of the NPs and NCs. Thus, NCs-4 might be a suitable alternative to further explore and develop as an antibacterial agent. The obtained results statistically justified the data (p ≤ 0.05) via one-way analysis of variance (ANOVA). According to the results of the antibacterial and photocatalytic study, we selected the best bimetallic NCs-4 for the photoexcited antibacterial effect of MDRs, including Gram ve+ and Gram ve- strains, via UV light irradiation. The flower-like NCs-4 composites showed more effectiveness than those of BiPO4, ZnO, and other ratios of NCs. The results encourage the development of flower-like NCs-4 to enhance the photocatalytic antibacterial technique for water purification.
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Orimolade BO, Arotiba OA. Enhanced photoelectrocatalytic degradation of diclofenac sodium using a system of Ag-BiVO 4/BiOI anode and Ag-BiOI cathode. Sci Rep 2022; 12:4214. [PMID: 35273333 PMCID: PMC8913733 DOI: 10.1038/s41598-022-08213-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 02/28/2022] [Indexed: 01/20/2023] Open
Abstract
We report the photoelectrocatalysis of diclofenac sodium using a reactor consisting of Ag-BiVO4/BiOI anode and Ag-BiOI cathode. The electrodes were prepared through electrodeposition on FTO glass and modified with Ag nanoparticles through photodeposition. The structural and morphological studies were carried out using XRD, SEM, and EDS which confirmed the successful preparation of the materials. The optical properties as observed with UV-DRS revealed that the electrodes were visible light active and incorporation of metallic Ag particles on the surface increased the absorption in the visible light region. Presence of p-n heterojunction in the anode led to decrease in the spontaneous recombination of photoexcited electron–hole pairs as seen in the photocurrent response. The results from photoelectrocatalytic degradation experiments revealed that replacing platinum sheet with Ag-BiOI as counter electrode resulted in higher (92%) and faster removal of diclofenac sodium as evident in the values of apparent rate constants. The reaction mechanism further revealed that efficiently separated photogenerated holes played a major role in the degradation of the pharmaceutical. The prepared electrodes showed good stability and impressive reusability. The reports from this study revealed that the dual photoelectrodes system has a great potential in treating pharmaceutical polluted wastewater using visible light irradiation.
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Affiliation(s)
- Benjamin O Orimolade
- Department of Chemical Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Omotayo A Arotiba
- Department of Chemical Sciences, University of Johannesburg, Johannesburg, South Africa. .,Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa.
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Ma M, E L, Zhao D, Xin Y, Wu X, Meng Y, Liu Z. The p-n heterojunction of BiVO4/Cu2O was decorated by plasma Ag NPs for efficient photoelectrochemical degradation of Rhodamine B. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127834] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Goulart LA, Moratalla A, Lanza MRV, Sáez C, Rodrigo MA. Photoelectrocatalytic treatment of levofloxacin using Ti/MMO/ZnO electrode. CHEMOSPHERE 2021; 284:131303. [PMID: 34182289 DOI: 10.1016/j.chemosphere.2021.131303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
Here, the antibiotic levofloxacin (LFX) widely used and detected in the environment was degraded by photoelectrolysis using a new electrode based on zinc oxide (ZnO) and a mixture of mixed oxides of ruthenium and titanium (MMO). The influence of the potential and irradiation of UV light was investigated in the photostability of the Ti/MMO/ZnO electrode and in the degradation of the antibiotic. The experiments were conducted at different pH values (5.0, 7.0 and 9.0) in sodium sulfate solution in a glass reactor with central lighting. It was observed that the new Ti/MMO/ZnO electrode has good stability under light irradiation and potential, presenting excellent photocurrent and high photoactivity in LFX photoelectrolysis. The removal efficiency of the compound was directly related to the formation of oxidizing species in solution, the photo-generated charges on the electrode and the electrostatic characteristics of the molecule. The mineralization rate, the formation of reaction intermediates and short chain carboxylic acids (acetic, maleic, oxalic and oxamic acid), in addition to the formation of N-mineral species (NO3- and NH4+) was dependent on the pH of the solution and the investigated processes: photoelectrolysis was more efficient than photolysis, which, in turn, was more efficient than electrolysis. The synergistic effect and the high rate of degradation of LFX after 4.0 h of treatment (100%) observed in photoelectrolysis at alkaline pH, was associated with the high stability of the Ti/MMO/ZnO electrode at this pH, the photoactivation of sulfate ions and the ease generation of oxidizing radicals, such as OH.
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Affiliation(s)
- Lorena A Goulart
- Institute of Chemistry - São Carlos, University of São Paulo, P.O. Box 780, CEP-13560-970, São Carlos, SP, Brazil; Department of Chemical Engineering, Universidad de Castilla-La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Angela Moratalla
- Department of Chemical Engineering, Universidad de Castilla-La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Marcos R V Lanza
- Institute of Chemistry - São Carlos, University of São Paulo, P.O. Box 780, CEP-13560-970, São Carlos, SP, Brazil.
| | - Cristina Sáez
- Department of Chemical Engineering, Universidad de Castilla-La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain
| | - Manuel A Rodrigo
- Department of Chemical Engineering, Universidad de Castilla-La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain.
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Goulart LA, Moratalla A, Lanza MR, Saez C, Rodrigo MA. Photocatalytic performance of Ti/MMO/ZnO at degradation of levofloxacin: Effect of pH and chloride anions. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114894] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Bismuth vanadate in photoelectrocatalytic water treatment systems for the degradation of organics: A review on recent trends. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114724] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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