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Noroozi R, Gholami M, Oskoei V, Hesami Arani M, Mousavifard SA, Nguyen Le B, Fattahi M. Fabrication of new composite NCuTiO 2/CQD for photocatalytic degradation of ciprofloxacin and pharmaceutical wastewater treatment: degradation pathway, toxicity assessment. Sci Rep 2023; 13:16287. [PMID: 37770590 PMCID: PMC10539511 DOI: 10.1038/s41598-023-42922-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 09/16/2023] [Indexed: 09/30/2023] Open
Abstract
In this research, the photocatalytic degradation of CIP from aqueous solutions using CQD decorated on N-Cu co-doped titania (NCuTCQD) was made during two synthesis steps by sol-gel and hydrothermal methods. The fabricated catalysts were analyzed using various techniques, including XRD, FT-IR, BET, FESEM, EDX, and DRS. The results showed that N and Cu atoms were doped on TiO2 and CQD was well deposited on NCuT. The investigation of effective operational parameters demonstrated that the complete removal of ciprofloxacin (CIP: 20 mg/L) could be achieved at pH 7.0, NCuTCQD4wt%: 0.8 g/L, and light intensity: 100 mW/cm2 over 60 min reaction time. The O2•- and OH˙ radicals were identified as the primary reactive species during the decontamination process. The synthesized photocatalyst could be recycled after six consecutive cycles of CIP decomposition with an insignificant decrease in performance. Pharmaceutical wastewater was treated through the optimum degradation conditions which showed the photocatalytic degradation eliminated 89% of COD and 75% of TOC within 180 min. In the effluent toxicity evaluation, the EC50 values for treated and untreated pharmaceutical wastewater increased from 62.50% to 140%, indicating that the NCuTCQD4wt%/Vis system can effectively reduce the toxic effects of pharmaceutical wastewater on aquatic environments.
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Affiliation(s)
- Roghayeh Noroozi
- Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran.
| | - Mitra Gholami
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Vahide Oskoei
- School of Life and Environmental Science, Deakin University, Geelong, Australia
| | - Mohsen Hesami Arani
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Azar Mousavifard
- Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran
| | - Binh Nguyen Le
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- School of Engineering &Technology, Duy Tan University, Da Nang, Vietnam
| | - Mehdi Fattahi
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
- School of Engineering &Technology, Duy Tan University, Da Nang, Vietnam.
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Zhao J, Dang Z, Muddassir M, Raza S, Zhong A, Wang X, Jin J. A New Cd(II)-Based Coordination Polymer for Efficient Photocatalytic Removal of Organic Dyes. Molecules 2023; 28:6848. [PMID: 37836691 PMCID: PMC10574129 DOI: 10.3390/molecules28196848] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/16/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Coordination polymers (CPs) are a diverse class of multi-dimensional compounds that show promise as photocatalysts for degrading dyes in polluted water. Herein, a new 1D Cd(II)-based coordination polymer with the formula [Cd(bpyp)(nba)2] (1) (bpyp = 2,5-bis(pyrid-4-yl)pyridine and Hnba = 4-nitrobenzoic acid) is synthesized and characterized. In 1, the two carboxyl groups of two different nba- ligands show μ2-η1:η1 and μ1-η1:η1 coordination modes to connect the CdII centers and sit on either side of the chain along the b direction. The produced CP 1 was utilized as the photocatalyst in the process of the photodegradation of methyl blue (MB), methyl orange (MO), rhodamine B (RhB), and methyl violet (MV) dyes when exposed to UV light. The photocatalytic degradation activities of CP 1 were analyzed, and the results suggest that it exhibits an extraordinary efficiency in the degradation of MB, MV, MO, and RhB. RhB has a 95.52% efficiency of degradation, whereas MV has a 58.92% efficiency, MO has 35.44%, and MB has 29.24%. The photodecomposition of dyes is catalyzed mostly by •O2- and •OH-, as shown by research involving the trapping of radicals.
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Affiliation(s)
- Juanjuan Zhao
- School of Physics and Materials Engineering, Hefei Normal University, Hefei 230601, China
| | - Zhuoyu Dang
- School of Physics and Materials Engineering, Hefei Normal University, Hefei 230601, China
| | - Mohd. Muddassir
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Saleem Raza
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Aiguo Zhong
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China;
| | - Xiaoxiong Wang
- School of Materials and Environmental Engineering, Shenzhen Polytechnic University, Shenzhen 518055, China;
| | - Juncheng Jin
- Key Laboratory of Biomimetic Sensor and Detecting Technology of Anhui Province, West Anhui University, Liuan 237012, China
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Ahmad I, Alshimaysawee S, Romero-Parra RM, Al-Hamdani MM, Rahimpoor R, Mengelizadeh N, Balarak D. Application of a novel composite of Fe 3O 4@SiO 2/PAEDTC surrounded by MIL-101(Fe) for photocatalytic degradation of penicillin G under visible light. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:100018-100036. [PMID: 37620704 DOI: 10.1007/s11356-023-29283-1] [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: 04/18/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023]
Abstract
The novel photocatalyst of Fe3O4@SiO2/PAEDTC@MIL-101(Fe) was prepared based on the sol-gel method, and its structure and morphology were determined by SEM mapping, TEM, XRD, FTIR, and N2 adsorption-desorption analyses. The photocatalytic activity of nanocomposite was evaluated in comparison with other particles as well as adsorption and photolysis processes. The effect of operating parameters showed that the complete degradation of penicillin G (PNG) can be provided at a photocatalyst dosage of 0.6 g/L, radiation intensity of 36 W, pH of 5, and time of 60 min. In the optimum condition, 84% TOC removal was attained and the BOD5/COD rate for the treated effluent was above 0.4, which was representative of the high biodegradability of the treated effluent compared to the raw sample. The findings of energy consumption showed that PNG can be easily and effectively treated by the photocatalytic process based on magnetic MIL-101(Fe) with electrical energy per order between 10 and 20.87 kWh/m3. Due to the excellent interaction between the MIL-101(Fe) and Fe3O4@SiO2/PAEDTC, the photocatalyst stability test showed a recyclability of the particles for 5 consecutive reaction cycles with a minimum reduction of 7%. Solution treated with photocatalyst under UV and visible light sources explained that the toxicity of the effluent after treatment is significantly reduced with the growth of Escherichia coli. Scavenging experiments showed that •OH radical and hole (h+) are the main agents in degrading PNG to CO2, H2O, and biodegradable and low-toxicity products. Finally, the findings of the diagnostic analysis and comparative experiments proved that with the interaction of Fe3O4@SiO2, NH2, and MIL-101(Fe), a lower band gap can be prepared for more absorption of photons and pollutant and also more and faster production of active radicals.
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Affiliation(s)
- Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | | | | | - Razzagh Rahimpoor
- Department of Occupational Health Engineering, School of Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Nezamaddin Mengelizadeh
- Department of Environmental Health Engineering, Faculty of Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Davoud Balarak
- Department of Environmental Health Engineering, Infectious Diseases and Tropical Medicine Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
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VafaeiAsl M, Keshavarz I, Shemirani F, Jamshidi P. Green synthesis of a novel magnetic Fe3O4@SiO2/TiO2@WO3 nanocomposite for methylene blue removal under UV and visible light irradiations. RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-023-04963-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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Kulis-Kapuscinska A, Kwoka M, Borysiewicz MA, Wojciechowski T, Licciardello N, Sgarzi M, Cuniberti G. Photocatalytic degradation of methylene blue at nanostructured ZnO thin films. NANOTECHNOLOGY 2023; 34:155702. [PMID: 36595265 DOI: 10.1088/1361-6528/aca910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
The photocatalytic degradation of the wastewater dye pollutant methylene blue (MB) at ZnO nanostructured porous thin films, deposited by direct current reactive magnetron sputtering on Si substrates, was studied. It was observed that over 4 photocatalytic cycles (0.3 mg · l-1MB solution, 540 minUV irradiation), the rate constantkof MB degradation decreased by ∼50%, varying in the range (1.54 ÷ 0.78) · 10-9(mol·l-1·min-1). For a deeper analysis of the photodegradation mechanism, detailed information on the nanostructured ZnO surface morphology and local surface and subsurface chemistry (nonstoichiometry) were obtained by using scanning electron microscopy (SEM) and x-ray photoelectron spectroscopy (XPS) as complementary analytical methods. The SEM studies revealed that at the surface of the nanostructured ZnO thin films a coral reef structure containing polycrystalline coral dendrites is present, and that, after the photocatalytic experiments, the sizes of individual crystallites increased, varying in the range 43 ÷ 76 nm for the longer axis, and in the range 28 ÷ 58 nm for the shorter axis. In turn, the XPS studies showed a slight non-stoichiometry, mainly defined by the relative [O]/[Zn] concentration of ca. 1.4, whereas [C]/[Zn] was ca. 1.2, both before and after the photocatalytic experiments. This phenomenon was directly related to the presence of superficial ZnO lattice oxygen atoms that can participate in the oxidation of the adsorbed MB molecules, as well as to the presence of surface hydroxyl groups acting as hole-acceptors to produce OH· radicals, which can be responsible for the generation of superoxide ions. In addition, after experiments, the XPS measurements revealed the presence of carboxyl and carbonyl functional groups, ascribable to the oxidation by-products formed during the photodegradation of MB.
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Affiliation(s)
- Anna Kulis-Kapuscinska
- Department of Cybernetics, Nanotechnology and Data Processing, Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland
| | - Monika Kwoka
- Department of Cybernetics, Nanotechnology and Data Processing, Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland
| | - Michal Adam Borysiewicz
- Łukasiewicz Research Network-Institute of Microelectronics and Photonics, Aleja Lotników 32/46, 02-668 Warsaw, Poland
| | - Tomasz Wojciechowski
- International Research Centre MagTop, Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, 02-668 Warsaw, Poland
| | - Nadia Licciardello
- Institute for Materials Science, Max Bergmann Centre of Biomaterials and Dresden Center for Nanoanalysis, TU Dresden, D-01062, Dresden, Germany
| | - Massimo Sgarzi
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, I-30172 Venezia Mestre, Italy
| | - Gianaurelio Cuniberti
- Institute for Materials Science, Max Bergmann Centre of Biomaterials and Dresden Center for Nanoanalysis, TU Dresden, D-01062, Dresden, Germany
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Synthesis of NiFe2O4/SiO2/NiO Magnetic and Application for the Photocatalytic Degradation of Methyl Orange Dye under UV Irradiation. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2022. [DOI: 10.9767/bcrec.17.4.15788.699-711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
NiFe2O4/SiO2/NiO magnetic was successfully synthesized using NiFe2O4, SiO2, and NiO as the core, interlayer, and shell, respectively. NiFe2O4/SiO2/NiO under UV light irradiation was used for photocatalytic degradation of methyl orange dye with different pH, catalyst dose, and initial dye concentration. This composite was characterized by X-ray Diffraction (XRD), Fourier Transform Infra-Red (FTIR), Scanning Electron Microscopy-Electron Dispersive X-ray Spectroscopy (SEM-EDs), Vibrating Sample Magnetometer (VSM), UV-Vis Diffuse Reflectance Spectroscopy (UV-Vis DRS), and Point of Zero Charge (pHpzc). The results showed that the composite is a superparamagnetic material with a saturation magnetization value of 44.13 emu/g. It also has a band gap of 2.67 eV with a pHpzc of 6.33. The optimum conditions for photocatalytic degradation were at pH of 4; 0.50 g/L catalyst dose, and 10 mg/L initial concentration. NiFe2O4/SiO2/NiO degradation efficiency to methyl orange dye was 95.76%. The photocatalytic degradation in different concentrations follows the pseudo-first-order, where the greater the concentration, the smaller the constant rate (k). After five cycles of repeated usage, NiFe2O4/SiO2/NiO has good catalytic performance as well as efficient and favourable of a recyclable photocatalyst. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF 4/TiO 2 composite films. Sci Rep 2022; 12:13748. [PMID: 35961994 PMCID: PMC9374679 DOI: 10.1038/s41598-022-17256-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 07/22/2022] [Indexed: 11/28/2022] Open
Abstract
The photocatalytic approach is known to be one of the most promising advanced oxidation processes for the tertiary treatment of polluted water. In this paper, β-NaYF4/TiO2 composite films have been synthetized through a novel sol–gel/spin-coating approach using a mixture of β-diketonate complexes of Na and Y, and Yb3+, Tm3+, Gd3+, Eu3+ as doping ions, together with the TiO2 P25 nanoparticles. The herein pioneering approach represents an easy, straightforward and industrially appealing method for the fabrication of doped β-NaYF4/TiO2 composites. The effect of the doped β-NaYF4 phase on the photocatalytic activity of TiO2 for the degradation of methylene blue (MB) has been deeply investigated. In particular, the upconverting TiO2/β-NaYF4: 20%Yb, 2% Gd, x% Tm (x = 0.5 and 1%) and the downshifting TiO2/β-NaYF4: 10% Eu composite films have been tested on MB degradation both under UV and visible light irradiation. An improvement up to 42.4% in the degradation of MB has been observed for the TiO2/β-NaYF4: 10% Eu system after 240 min of UV irradiation.
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Roy N, Kannabiran K, Mukherjee A. Studies on photocatalytic removal of antibiotics, ciprofloxacin and sulfamethoxazole, by Fe3O4-ZnO-Chitosan/Alginate nanocomposite in aqueous systems. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sekar P, Sadanand Joshi D, Manjunatha M, Mahalingam H. Enhanced disinfection of E. faecalis and levofloxacin antibiotic degradation using tridoped B-Ce-Ag TiO 2 photocatalysts synthesized by ecofriendly citrate EDTA complexing method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:50765-50779. [PMID: 35239118 DOI: 10.1007/s11356-022-19268-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 02/13/2022] [Indexed: 06/14/2023]
Abstract
Since its use for photochemical water splitting reported first in 1972, TiO2 is one of the most extensively studied photocatalysts for a diverse range of applications. Monodoping or codoping of the catalyst is a proven strategy to enhance the functionality of TiO2 under solar or visible light. However, the use of three or more dopants in the development of more efficient and visible light active photocatalysts has not been investigated widely, especially for microbial disinfection. Boron/cerium/silver tridoped TiO2 photocatalysts with curated amounts of the dopants (B = 1, 2 at.%, Ce = 0.1 at.%, Ag = 0.06 at.%), synthesized by the ecofriendly EDTA-citrate method, were evaluated for the disinfection of water using Enterococcus faecalis under UV-A irradiation and degradation of levofloxacin antibiotic under solar light. The catalyst characterization revealed that the spherical nanoparticles had a crystallite size of ~ 13 nm and bandgap energy values of 2.8-2.9 eV. 2B-0.1Ce-0.06Ag-TiO2 is the best catalyst for microbial disinfection with a log reduction and kinetic rate constant ~ 30 and ~ 4.5 times higher than those values determined for the other codoped or monodoped catalysts, confirming an enhanced performance. Regarding levofloxacin degradation, the best performing catalyst is 1B-0.1Ce-0.06Ag-TiO2 with degradation of 99% and 83% COD reduction in 100 min. The tridoped photocatalysts are very effective in the inactivation of Enterococcus faecalis, thus solving the problem of antimicrobial resistance in waters containing antibiotic residues.
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Affiliation(s)
- Pooja Sekar
- Department of Chemical Engineering, National Institute of Technology Karnataka (NITK) Surathkal, Mangalore, 575025, Karnataka, India
| | - Deepti Sadanand Joshi
- Department of Chemical Engineering, National Institute of Technology Karnataka (NITK) Surathkal, Mangalore, 575025, Karnataka, India
| | - Manasa Manjunatha
- Department of Chemical Engineering, National Institute of Technology Karnataka (NITK) Surathkal, Mangalore, 575025, Karnataka, India
| | - Hari Mahalingam
- Department of Chemical Engineering, National Institute of Technology Karnataka (NITK) Surathkal, Mangalore, 575025, Karnataka, India.
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Chemical exfoliation of silica filters used on methylene blue degradation by photocatalysis. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02253-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gupta S, Gomaa H, Ray MB. Performance characterization of a hybrid adsorptive-photocatalytic (APC) oscillatory membrane reactor for micropollutant removal. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119706] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Su G, Liu L, Zhang L, Liu X, Xue J, Tang A. Fabrication of magnetic Fe 3O 4@SiO 2@Bi 2O 2CO 3/rGO composite for enhancing its photocatalytic performance for organic dyes and recyclability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:50286-50301. [PMID: 33956322 DOI: 10.1007/s11356-021-14248-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
A novel magnetic Fe3O4@SiO2@Bi2O2CO3/rGO composite comprising of uniform core-shell-structured Fe3O4@SiO2@Bi2O2CO3 microspheres mounted on reduced graphene oxide (rGO) sheets was successfully fabricated by using a facile hydrothermal method. The adsorption-desorption isotherm of Fe3O4@SiO2@Bi2O2CO3/rGO belonged to type IV with an H4-type hysteresis loop. The specific surface areas and magnetization saturation value (Ms) of Fe3O4@SiO2@Bi2O2CO3/rGO (x = 0.15 g) were 102.12 m2/g and 25.4 emu/g, respectively. Fe3O4@SiO2@Bi2O2CO3/rGO (x = 0.15 g) exhibited remarkable photocatalytic degradation activity and mineralization effect for MO and decolorization performance for the mixed solution of MO, Rh B, and MB. MO degradation by Fe3O4@SiO2@Bi2O2CO3/rGO conformed to a first-order kinetic reaction, and the corresponding kapp value was 0.05553 min-1. A suitable amount of rGO in Fe3O4@SiO2@Bi2O2CO3/rGO could decrease the energy band gap, inhibit the recombination of photo-induced electron/hole (e-/h+) pair, and broaden and enhance the response of the catalyst to visible light, thereby enhancing the visible-light catalytic degradation of organic dyes. The active species produced in the photocatalysis included •O2-, •OH, and h+, with •O2- being the dominant active species. The as-prepared photocatalyst also showed excellent magnetic separation performance and stability. Results show that the as-prepared Fe3O4@SiO2@Bi2O2CO3/rGO composite is a promising photocatalyst with considerable application potential in organic dyes removal.
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Affiliation(s)
- Gang Su
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Lihua Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Xiangtan, 411201, China.
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan, 411201, China.
| | - Lixing Zhang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Xing Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Jianrong Xue
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Xiangtan, 411201, China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan, 411201, China
| | - Anping Tang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Xiangtan, 411201, China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan, 411201, China
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Manasa M, Chandewar PR, Mahalingam H. Photocatalytic degradation of ciprofloxacin & norfloxacin and disinfection studies under solar light using boron & cerium doped TiO2 catalysts synthesized by green EDTA-citrate method. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Application of TiO2-Based Photocatalysts to Antibiotics Degradation: Cases of Sulfamethoxazole, Trimethoprim and Ciprofloxacin. Catalysts 2021. [DOI: 10.3390/catal11060728] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The extensive application of antibiotics in human and veterinary medicine has led to their widespread occurrence in a natural aquatic environment. Global health crisis is associated with the fast development of antimicrobial resistance, as more and more infectious diseases cannot be treated more than once. Sulfamethoxazole, trimethoprim and ciprofloxacin are the most commonly detected antibiotics in water systems worldwide. The persistent and toxic nature of these antibiotics makes their elimination by conventional treatment methods at wastewater treatment plants almost impossible. The application of advanced oxidation processes and heterogeneous photocatalysis over TiO2-based materials is a promising solution. This highly efficient technology has the potential to be sustainable, cost-efficient and energy-efficient. A comprehensive review on the application of various TiO2-based photocatalysts for the degradation of sulfamethoxazole, trimethoprim and ciprofloxacin is focused on highlighting their photocatalytic performance under various reaction conditions (different amounts of pollutant and photocatalyst, pH, light source, reaction media, presence of inorganic ions, natural organic matter, oxidants). Mineralization efficiency and ecotoxicity of final products have been also considered. Further research needs have been presented based on the literature findings. Among them, design and development of highly efficient under sunlight, stable, recyclable and cost-effective TiO2-based materials; usage of real wastewaters for photocatalytic tests; and compulsory assessment of products ecotoxicity are the most important research tasks in order to meet requirements for industrial application.
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Ghasemzadeh MA, Elyasi Z, Monfared MRZ. Enhanced Removal of Methyl Violet Dye from Aqueous Solution by a Novel Co3O4@SiO2@TiO2-Ag Heterogeneous Semiconductor. Comb Chem High Throughput Screen 2021; 25:883-894. [PMID: 33645475 DOI: 10.2174/1386207324666210301090123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/28/2021] [Accepted: 02/08/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND This research introduces the application of a novel photocatalyst including Co3O@SiO2@TiO2-Ag nanocomposite with highly photocatalytic stability and core-shell structure for the removal of toxic methyl violet from aqueous solution. OBJECTIVE The removal of toxic dyes and organic contaminants from water is outstanding research area between scientists. Methyl violet as a toxic cationic pollutant has disruptive influence for humans. In this research, with a aim to remove to methyl violet from the wastewater we developed a new photocatalyst including Co3O4@SiO2@TiO2-Ag nanocomposite as a eco-friendly and low-cost nanostructure with high photocatalytic activity in order to reduce the risks of this pollutant from aqueous media. METHODS The Co3O4@SiO2@TiO2-Ag nanostructure was prepared via hydrothermal and sol-gel methods and the structure elucidation of the prepared photocatalyst was analyzed by different spectroscopy techniques including XRD, FT-IR, FE-SEM, TEM, VSM and EDX. RESULTS Photodegradation of methyl violet in the presence of different structures showed that Co3O4@SiO2@TiO2-Ag is superior photocatalytic activity (about 98% was decomposed after 40 min) compared to the previous shells and pure Co3O4 NPs. Loadings of SiO2@TiO2-Ag nanocomposite over the Co3O4 surface led to the reduction in the band gap energy of visible light and improvement in the photocatalytic activity of Methyl Violet dye for the aqueous phase decomposition. CONCLUSION The remarkable benefits of this nanocomposite are highly photocatalytic efficiency in the degradation of methyl violet (almost 100 % within 1 h), easy magnetic separation, low cost, and high chemical stability. The collected results demonstrated the rate of degradation is increased by increasing the irradiation time, while the rate of degradation is decreased by dye concentration.
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Affiliation(s)
- Mohammad Ali Ghasemzadeh
- Department of Chemistry, Qom Branch, Islamic Azad University, Qom, I. R. Iran Post Box: 37491-13191. Iran
| | - Zahar Elyasi
- Department of Chemistry, Qom Branch, Islamic Azad University, Qom, I. R. Iran Post Box: 37491-13191. Iran
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Wu Q. Fabrication of black TiO 2-x /NiFe 2O 4 supported on diatomaceous earth with enhanced sonocatalytic activity for ibuprofen mitigation. NANOTECHNOLOGY 2021; 32:055706. [PMID: 33065561 DOI: 10.1088/1361-6528/abc20c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study reports a facile fabrication of black TiO2-x /NiFe2O4 (Ti3+ self-doped titania coupled with nickel ferrite), an efficient sonocatalyst for ibuprofen (IBP) mitigation. Compared with TiO2-x or NiFe2O4, TiO2-x /NiFe2O4 heterojunction displayed higher sonocatalytic activity, and their immobilization onto diatomaceous earth further enhanced mitigation efficiency due to the synergy between adsorption and sonocatalysis. About 96.7% of 10 mg l-1 IBP was removed in 100 min using 0.7 g l-1 catalyst at pH = 6, with the ultrasonic power of 144 W and frequency of 60 KHz. Quenching experiment results demonstrated the roles of reactive species. The intermediates during IBP sono-oxidation were determined by HPLC-MS method, and the acute toxicity was evaluated. Furthermore, the reaction mechanism was proposed. The sonocatalyst revealed excellent reusability, suggesting itself promising for wastewater treatment.
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Affiliation(s)
- Qiong Wu
- College of Environment, Liaoning University, Shenyang 110036, People's Republic of China
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Huh JY, Lee J, Bukhari SZA, Ha JH, Song IH. Development of TiO 2-coated YSZ/silica nanofiber membranes with excellent photocatalytic degradation ability for water purification. Sci Rep 2020; 10:17811. [PMID: 33082457 PMCID: PMC7576826 DOI: 10.1038/s41598-020-74637-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/30/2020] [Indexed: 11/09/2022] Open
Abstract
Numerous reports have elucidated that TiO2 nanoparticles (TiO2-NPs) exhibit respectable photocatalytic degradation capacities due to their high specific surface areas. However, the current recovery process leads to a loss of TiO2-NPs; therefore, there is a need to immobilize TiO2-NPs on the substrate used. Herein, TiO2-coated yttria-stabilized zirconia/silica nanofiber (TiO2-coated YSZ/silica NF) was prepared by coating TiO2 on the surface of YSZ/silica NF using a sol-gel process. The TiO2 coating layer on the nanofiber surface improved the separation ability of the membrane as well as the photocatalytic degradation ability. The pore size of the TiO2-coated YSZ/silica NF membrane was less than that of the pristine YSZ/silica NF membrane, and it rejected over 99.6% of the 0.5 μm polymeric particles. In addition, the TiO2-coated YSZ/silica NF membrane showed excellent adsorption/degradation of humic acid (HA, 88.2%), methylene blue (MB, 92.4%), and tetracycline (TC, 99.5%). Six recycling tests were performed to evaluate the reusability of the TiO2-coated YSZ/silica NF membrane. The adsorption/degradation efficiency for HA, MB, and TC decreased by 3.7%, 2.8%, and 2.2%, respectively. We thus verified the high separation ability, excellent photocatalytic degradation ability, and excellent reusability of the TiO2-coated YSZ/silica NF membranes.
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Affiliation(s)
- Jin Young Huh
- Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsangu, Changwon, 51508, Republic of Korea
| | - Jongman Lee
- Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsangu, Changwon, 51508, Republic of Korea.
- Department of Advanced Materials Engineering, University of Science & Technology (UST), 797 Changwondaero, Seongsangu, Changwon, 51508, Republic of Korea.
| | - Syed Zaighum Abbas Bukhari
- Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsangu, Changwon, 51508, Republic of Korea
| | - Jang-Hoon Ha
- Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsangu, Changwon, 51508, Republic of Korea
| | - In-Hyuck Song
- Powder & Ceramics Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsangu, Changwon, 51508, Republic of Korea
- Department of Advanced Materials Engineering, University of Science & Technology (UST), 797 Changwondaero, Seongsangu, Changwon, 51508, Republic of Korea
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Wu Q, Zhang Z. Fabrication of black TiO 2−x/CuFe 2O 4 decorated on diatomaceous earth with enhanced sonocatalytic activity for ibuprofen mitigation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01478h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study reports facile fabrication of black TiO2−x/CuFe2O4 (Ti3+ self-doped titania coupled with copper ferrite), an efficient sonocatalyst for ibuprofen (IBP) mitigation.
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Affiliation(s)
- Qiong Wu
- College of Environment
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Zhaohong Zhang
- College of Environment
- Liaoning University
- Shenyang 110036
- P. R. China
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19
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Geng N, Chen W, Xu H, Ding M, Liu Z, Shen Z. A sono-photocatalyst for humic acid removal from water: Operational parameters, kinetics and mechanism. ULTRASONICS SONOCHEMISTRY 2019; 57:242-252. [PMID: 31078395 DOI: 10.1016/j.ultsonch.2019.03.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/07/2019] [Accepted: 03/22/2019] [Indexed: 06/09/2023]
Abstract
As a precursor of disinfection byproducts, humic acid (HA) has adverse effects on aquatic environments and human health. Currently, many advanced oxidation processes (AOPs) have been proposed to remove HA from drinking water, one of which is photocatalysis. However, the long reaction time required for degradation and drawbacks of the photocatalysts limit the large-scale application of photocatalysis. Therefore, two principal objectives were achieved in this work. First regarding the technology, we combined photocatalysis with ultrasonic waves to remove HA. Second regarding the photocatalyst, quaternary Fe3O4/TiO2-N-GO (FTNG) sono-photocatalysts with different amounts of Fe3O4 were first synthesized using a simple hydrothermal method. Characterizations were performed to confirm the successful synthesis of the sono-photocatalyst and to determine some of its properties. The influence of different experimental factors such as Fe3O4 content, ultrasonic power, catalyst dosage and initial HA concentration were studied. The first-order kinetic and second-order kinetic equations were used to simulate the experimental data. The results showed that FTNG-0.2 with 0.2 g of Fe3O4, which was added upon preparation, showed the highest sono-photocatalytic ability. In our experimental setup, greater than 99% removal efficiency (UV254) and 94% mineralization rate (TOC) were achieved within 90 min at the optimum conditions (60 W ultrasound power and 1.0 g/L catalyst dosage for 30 mg/L HA). Compared with the pseudo-first-order kinetic model, pseudo-second-order model fitted better with the experimental data and it had higher R2 values of 0.92, 0.98 and 0.98 for 30, 40 and 50 mg/L of HA, respectively. According to the scavenging tests and the ESR analysis, both of the OH and O2- were produced in the reaction, however, O2- radicals were assumed to be the dominating reactive species for the HA degradation. Moreover, after five repetitive experiments, the removal efficiency of HA can still reach 88.5%, indicating high stability of FTNG-0.2 sono-photocatalyst. The mechanism of degradation of HA by FTNG-0.2 in sono-photocatalytic system was mentioned based on several factors including the ultrasonic cavitation effect, Fenton-like reactions, photocatalytic reactions, etc. In fact, this was the first study to treat HA through sono-photocatalytic process, which showed great potential in drinking water treatment.
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Affiliation(s)
- Nannan Geng
- College of Environment, Hohai University, Nanjing 210098, PR China
| | - Wei Chen
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China
| | - Hang Xu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Mingmei Ding
- College of Environment, Hohai University, Nanjing 210098, PR China
| | - Zhigang Liu
- College of Environment, Hohai University, Nanjing 210098, PR China
| | - Zhen Shen
- College of Environment, Hohai University, Nanjing 210098, PR China
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Chung WJ, Nguyen DD, Bui XT, An SW, Banu JR, Lee SM, Kim SS, Moon DH, Jeon BH, Chang SW. A magnetically separable and recyclable Ag-supported magnetic TiO 2 composite catalyst: Fabrication, characterization, and photocatalytic activity. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 213:541-548. [PMID: 29478848 DOI: 10.1016/j.jenvman.2018.02.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 02/12/2018] [Accepted: 02/16/2018] [Indexed: 05/24/2023]
Abstract
In this study, a magnetically separable, highly active, and recyclable photocatalyst was synthesized by physico-chemical incorporation of Ag, TiO2, and Fe3O4 into one structure. The physical and chemical properties of the catalysts were evaluated by X-ray diffraction, X-ray fluorescence spectrometry, scanning electron microscopy, field emission transmission electron microscopy, energy dispersive X-ray spectroscopy, and diffuse reflectance spectroscopy. The Ag-supported magnetic TiO2 composite demonstrated desirable properties and features such as a narrow band gap of 1.163 eV, modifiable structure, and high degradation efficiency. The activity and durability of the synthesized photocatalyst in the degradation of methyl orange (MO) in aqueous solutions under visible light irradiation and different experimental conditions were evaluated and compared to those of commercial TiO2 and Ag/TiO2 composites. It was found that the synthesized composite showed a much higher MO photodegradation efficiency than the other composites under visible light irradiation. Moreover, it exhibited a high photocatalytic activity and was recoverable and durable; its photocatalytic efficiency in MO removal was consistently higher than 93.1% after five reuses without any evident signs of deactivation. Thus, the developed photocatalyst is a very promising material for practical applications in environmental pollution remediation.
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Affiliation(s)
- Woo Jin Chung
- Department of Environmental Energy Engineering, Kyonggi University, 94 San, Iui-dong, Youngtong-gu, Suwon-si, Gyeonggi-do, 16227, Republic of Korea
| | - Dinh Duc Nguyen
- Department of Environmental Energy Engineering, Kyonggi University, 94 San, Iui-dong, Youngtong-gu, Suwon-si, Gyeonggi-do, 16227, Republic of Korea.
| | - Xuan Thanh Bui
- Faculty of Environment and Natural Resources, University of Technology, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Sang Woo An
- Wizinnotek Co. Ltd, 452 Nohae-ro, Nowon-gu, Seoul, 01762, Republic of Korea
| | - J Rajesh Banu
- Department of Civil Engineering, Regional Campus of Anna University, Tirunelveli 627007, Tamil Nadu, India
| | - Sang Moon Lee
- Department of Environmental Energy Engineering, Kyonggi University, 94 San, Iui-dong, Youngtong-gu, Suwon-si, Gyeonggi-do, 16227, Republic of Korea
| | - Sung Su Kim
- Department of Environmental Energy Engineering, Kyonggi University, 94 San, Iui-dong, Youngtong-gu, Suwon-si, Gyeonggi-do, 16227, Republic of Korea
| | - Dea Hyun Moon
- Department of Environmental Energy Engineering, Kyonggi University, 94 San, Iui-dong, Youngtong-gu, Suwon-si, Gyeonggi-do, 16227, Republic of Korea
| | - Byong Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Soon Woong Chang
- Department of Environmental Energy Engineering, Kyonggi University, 94 San, Iui-dong, Youngtong-gu, Suwon-si, Gyeonggi-do, 16227, Republic of Korea.
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Teixeira S, Magalhães B, Martins PM, Kühn K, Soler L, Lanceros‐Méndez S, Cuniberti G. Reusable Photocatalytic Optical Fibers for Underground, Deep-Sea, and Turbid Water Remediation. GLOBAL CHALLENGES (HOBOKEN, NJ) 2018; 2:1700124. [PMID: 31565326 PMCID: PMC6607349 DOI: 10.1002/gch2.201700124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/17/2018] [Indexed: 05/09/2023]
Abstract
An approach for underground, deep, and turbid water remediation is presented based on optical fibers with a photocatalytic coating. Thus, photocatalytic TiO2 P25 nanoparticles immobilized in a poly(vinylidene difluoride) (PVDF) matrix are coated on polymeric optical fibers (POFs) and the photocatalytic performance of the system is assessed under artificial sunlight. To the best of our knowledge, poly(methyl methacrylate)-POF coated with TiO2/PVDF and the reusability of any type of POF for photocatalytic applications are not previously reported. The photocatalytic efficiency of the hybrid material in the degradation of ciprofloxacin (CIP) and its reusability are evaluated here. It is shown that 50 w/w% of TiO2 P25 achieves a degradation of 95% after 72 h under artificial sunlight and a reusability of three times leads to a loss of activity inferior to 11%. The efficient removal of ciprofloxacin and the stability of the POF coated with TiO2 P25 successfully demonstrate its suitability in the degradation of pollutants with potential application in regions with low light illumination, as in underground and deep water.
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Affiliation(s)
- Sara Teixeira
- Institute for Materials Science and Max Bergmann Center of BiomaterialsTU Dresden01062DresdenGermany
| | - Bruno Magalhães
- Centro/Departamento de Física da University of MinhoCampus de Gualtar4710‐057BragaPortugal
| | - Pedro M. Martins
- Centro/Departamento de Física da University of MinhoCampus de Gualtar4710‐057BragaPortugal
- Centro de Engenharia BiológicaUniversity of Minho4710‐057BragaPortugal
| | - Klaus Kühn
- Institute for Materials Science and Max Bergmann Center of BiomaterialsTU Dresden01062DresdenGermany
| | - Lluís Soler
- Institut de Tècniques EnergètiquesDepartament d'Enginyeria Química and Barcelona Research Center for Multiscale Science and EngineeringUniversitat Politècnica de CatalunyaEEBE08019BarcelonaSpain
| | - Senentxu Lanceros‐Méndez
- Centro/Departamento de Física da University of MinhoCampus de Gualtar4710‐057BragaPortugal
- BCMaterialsBasque Center for MaterialsApplications and NanostructuresUPV/EHU Science Park48940LeioaSpain
- IKERBASQUEBasque Foundation for Science48013BilbaoSpain
| | - Gianaurelio Cuniberti
- Institute for Materials Science and Max Bergmann Center of BiomaterialsTU Dresden01062DresdenGermany
- Dresden Center for Computational Materials Science (DCMS)TU Dresden01062DresdenGermany
- Center for Advancing Electronics Dresden (CFAED)TU Dresden01062DresdenGermany
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