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Raguram T, Rajni KS, Kanchana D, José SE, Granados-Tavera K, Cárdenas-Jirón G, Shobana M, Meher SR. Exploring structural and optical properties of iodine-doped TiO 2 nanoparticles in Rhodamine-B dye degradation: Experimental and theoretical investigation. CHEMOSPHERE 2024; 364:143183. [PMID: 39214412 DOI: 10.1016/j.chemosphere.2024.143183] [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: 06/18/2024] [Revised: 08/19/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Energy conversion and pollutant degradation are critical for advancing sustainable technologies, yet they often encounter challenges related to charge recombination and efficiency limitations. This study explores iodine-doped TiO2 nanoparticles as a potential solution for enhancing both energy conversion and pollutant degradation. The nanoparticles were synthesized via the sol-gel method with varying iodine precursor concentrations (0.025-0.1 M) and were characterized for their structural, compositional, and optical properties, particularly in relation to their photocatalytic performance in Rhodamine-B dye degradation. X-ray diffraction confirmed a tetragonal anatase crystal structure, with the average crystallite size decreasing from 10.06 nm to 8.82 nm with increase in iodine concentration. Selected area electron diffraction patterns verified the polycrystalline nature of the nanoparticles. Dynamic light scattering analysis showed hydrodynamic radii ranging from 95 to 125 nm. Fourier-transform infrared spectroscopy identified metal-oxygen vibrations at 441 cm⁻1, and electron microscopy confirmed the spherical morphology of the nanoparticles. Elemental analysis detected the presence of Ti, O, and I in the samples. Diffuse reflectance spectroscopy indicated the optical absorption edges for the doped samples in the visible region from which the corresponding band gap values were deduced. Photoluminescence spectroscopy revealed that the sample with 0.1 M iodine exhibit the lowest emission intensity, suggesting reduced charge recombination. Notably, 0.1 M iodine doped TiO2 samples demonstrated the highest photocatalytic efficiency, achieving 82.36% degradation of Rhodamine-B dye within 140 min under visible light. Additionally, ab-initio density functional theory calculations were performed to investigate the structural, optical, and adsorption properties of TiO2, iodine-doped TiO2, Rhodamine-B, and their composites, providing further insight into the enhanced photocatalytic activity observed in the experiments.
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Affiliation(s)
- T Raguram
- Centre for Applied Nanomaterials, Chennai Institute of Technology, Chennai - 600 069, Tamil Nadu, India.
| | - K S Rajni
- Department of Sciences, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, India; Functional Materials Laboratory, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India.
| | - D Kanchana
- Department of Computer Science and Applications, SRM Institute of Science and Technology, Ramapuram Campus, Chennai, Tamil Nadu, India
| | - Solar-Encinas José
- Laboratory of Theoretical Chemistry, Faculty of Chemistry and Biology, University of Santiago de Chile (USACH), Santiago, Chile
| | | | - Gloria Cárdenas-Jirón
- Laboratory of Theoretical Chemistry, Faculty of Chemistry and Biology, University of Santiago de Chile (USACH), Santiago, Chile.
| | - M Shobana
- Centre for Applied Nanomaterials, Chennai Institute of Technology, Chennai - 600 069, Tamil Nadu, India
| | - S R Meher
- Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632 014, India
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2
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Gorgolis G, Kotsidi M, Messina E, Mazzurco Miritana V, Di Carlo G, Nhuch EL, Martins Leal Schrekker C, Cuty JA, Schrekker HS, Paterakis G, Androulidakis C, Koutroumanis N, Galiotis C. Antifungal Hybrid Graphene-Transition-Metal Dichalcogenides Aerogels with an Ionic Liquid Additive as Innovative Absorbers for Preventive Conservation of Cultural Heritage. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3174. [PMID: 38998257 PMCID: PMC11242601 DOI: 10.3390/ma17133174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024]
Abstract
The use and integration of novel materials are increasingly becoming vital tools in the field of preventive conservation of cultural heritage. Chemical factors, such as volatile organic compounds (VOCs), but also environmental factors such as high relative humidity, can lead to degradation, oxidation, yellowing, and fading of the works of art. To prevent these phenomena, highly porous materials have been developed for the absorption of VOCs and for controlling the relative humidity. In this work, graphene and transition-metal dichalcogenides (TMDs) were combined to create three-dimensional aerogels that absorb certain harmful substances. More specifically, the addition of the TMDs molybdenum disulfide and tungsten disulfide in such macrostructures led to the selective absorption of ammonia. Moreover, the addition of the ionic liquid 1-hexadecyl-3-methylimidazolium chloride promoted higher rates of VOCs absorption and anti-fungal activity against the fungus Aspergillus niger. These two-dimensional materials outperform benchmark porous absorbers in the absorption of all the examined VOCs, such as ammonia, formic acid, acetic acid, formaldehyde, and acetaldehyde. Consequently, they can be used by museums, galleries, or even storage places for the perpetual protection of works of art.
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Affiliation(s)
- George Gorgolis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504 Patras, Greece
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | - Maria Kotsidi
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | - Elena Messina
- Institute for the Study of Nanostructured Materials (ISMN), National Research Council (CNR), SP35d, 9, 00010 Montelibretti, Italy;
| | - Valentina Mazzurco Miritana
- Department of Energy Technologies and Renewable Sources, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Via Anguillarese 301, 00123 Rome, Italy
| | - Gabriella Di Carlo
- Institute for the Study of Nanostructured Materials (ISMN), National Research Council (CNR), SP35d, 9, 00010 Montelibretti, Italy;
| | - Elsa Lesaria Nhuch
- Laboratory of Technological Processes and Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre 91.501-970, RS, Brazil
| | - Clarissa Martins Leal Schrekker
- Laboratory of Technological Processes and Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre 91.501-970, RS, Brazil
| | - Jeniffer Alves Cuty
- Laboratory of Technological Processes and Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre 91.501-970, RS, Brazil
| | - Henri Stephan Schrekker
- Laboratory of Technological Processes and Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre 91.501-970, RS, Brazil
| | - George Paterakis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504 Patras, Greece
| | - Charalampos Androulidakis
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, O&N1, Herestraat 49, PB 813, 3000 Leuven, Belgium
| | - Nikos Koutroumanis
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | - Costas Galiotis
- Institute of Chemical Engineering Sciences, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, 26504 Patras, Greece
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
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3
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Ogoh-Orch B, Keating P, Ivaturi A. Visible-Light-Active BiOI/TiO 2 Heterojunction Photocatalysts for Remediation of Crude Oil-Contaminated Water. ACS OMEGA 2023; 8:43556-43572. [PMID: 38027343 PMCID: PMC10666155 DOI: 10.1021/acsomega.3c04359] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023]
Abstract
In this study, BiOI-sensitized TiO2 (BiOI/TiO2) nanocomposites with different levels of BiOI deposited via sequential ionic layer adsorption and reaction (SILAR) have been explored for the degradation of methyl orange, 4-chlorophenol (4-CP), and crude oil in water under visible (>400 nm) irradiation with excellent degradation performance. The reaction progress for methyl orange and 4-chlorophenol was monitored by a UV-vis spectrophotometer, and the degradation of the crude oil hydrocarbons was determined by GC-MS. The BiOI/TiO2 heterojunction improves separation of photogenerated charges, which enhances the degradation efficiency. Evaluation of the visible-light photocatalytic performance of the synthesized catalysts against methyl orange degradation confirmed that four SILAR cycles are the optimal deposition condition for the best degradation efficiency. The efficiency was further confirmed by degrading 4-CP and crude oil, achieving 38.30 and 85.62% degradation, respectively, compared with 0.0% (4-CP) and 70.56% (crude oil) achieved by TiO2. The efficiency of TiO2 in degrading crude oil was mainly due to adsorption along with photolysis. This study provides a simple and cost-effective alternative to traditional remediation methods requiring high energy consumption for remediation of crude oil-polluted water and refinery wastewater using visible-light photocatalysis along with adsorption.
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Affiliation(s)
- Blessing Ogoh-Orch
- Smart Materials Research
and Device Technology (SMaRDT) Group, Department of Pure and Applied
Chemistry, Thomas Graham Building, University
of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Patricia Keating
- Smart Materials Research
and Device Technology (SMaRDT) Group, Department of Pure and Applied
Chemistry, Thomas Graham Building, University
of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Aruna Ivaturi
- Smart Materials Research
and Device Technology (SMaRDT) Group, Department of Pure and Applied
Chemistry, Thomas Graham Building, University
of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
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4
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Cifre-Herrando M, Roselló-Márquez G, Navarro-Gázquez PJ, Muñoz-Portero MJ, Blasco-Tamarit E, García-Antón J. Characterization and Comparison of WO 3/WO 3-MoO 3 and TiO 2/TiO 2-ZnO Nanostructures for Photoelectrocatalytic Degradation of the Pesticide Imazalil. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2584. [PMID: 37764613 PMCID: PMC10535956 DOI: 10.3390/nano13182584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
Tungsten oxide (WO3) and zinc oxide (ZnO) are n-type semiconductors with numerous applications in photocatalysis. The objective of this study was to synthesize and characterize different types of nanostructures (WO3, WO3-Mo, TiO2, and TiO2-ZnO) for a comparison of hybrid and pure nanostructures to use them as a photoanodes for photoelectrocatalytic degradation of emerging contaminants. With the aim of comparing the properties of both samples, field emission scanning electron microscopy (FE-SEM) and confocal laser-Raman spectroscopy were used to study the morphology, composition, and crystallinity, respectively. Electrochemical impedances, Mott-Schottky, and water splitting measurements were performed to compare the photoelectrochemical properties of photoanodes. Finally, the photoelectrocatalytic degradation of the pesticide Imazalil was carried out with the best optimized nanostructure (TiO2-ZnO).
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Affiliation(s)
- Mireia Cifre-Herrando
- Ingeniería Electroquímica y Corrosión (IEC), Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, C/Camino de Vera s/n, 46022 Valencia, Spain
| | - Gemma Roselló-Márquez
- Ingeniería Electroquímica y Corrosión (IEC), Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, C/Camino de Vera s/n, 46022 Valencia, Spain
| | - Pedro José Navarro-Gázquez
- Ingeniería Electroquímica y Corrosión (IEC), Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, C/Camino de Vera s/n, 46022 Valencia, Spain
| | - María José Muñoz-Portero
- Ingeniería Electroquímica y Corrosión (IEC), Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, C/Camino de Vera s/n, 46022 Valencia, Spain
| | - Encarnación Blasco-Tamarit
- Ingeniería Electroquímica y Corrosión (IEC), Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, C/Camino de Vera s/n, 46022 Valencia, Spain
| | - José García-Antón
- Ingeniería Electroquímica y Corrosión (IEC), Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM), Universitat Politècnica de València, C/Camino de Vera s/n, 46022 Valencia, Spain
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5
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Grochowska K, Haryński Ł, Karczewski J, Jurak K, Siuzdak K. Scanning with Laser Beam over the TiO 2 Nanotubes Covered with Thin Chromium Layers towards the Activation of the Material under the Visible Light. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2572. [PMID: 37048866 PMCID: PMC10095246 DOI: 10.3390/ma16072572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
This work presents pulsed UV laser treatment (355 nm, 2 Hz) of TiO2 nanotubes decorated with chromium oxides. The modification was performed in a system equipped with a beam homogenizer, and during the irradiation, the samples were mounted onto the moving motorized table. In such a system, both precisely selected areas and any large area of the sample can be modified. Photoelectrochemical tests revealed photoresponse of laser-treated samples up to 1.37- and 18-fold under the illumination with ultraviolet-visible and visible light, respectively, in comparison to bare titania. Optimal beam energy fluence regarding sample photoresponse has been established. Scanning electron microscopy images, X-ray diffraction patterns, along with Raman and X-ray photoelectron spectra, suggest that the enhanced photoresponse results from changes solely induced in the layer of chromium oxides. It is believed that the results of the present work will contribute to a wider interest in laser modification of semiconductors exhibiting improved photoelectrochemical activity.
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Affiliation(s)
- Katarzyna Grochowska
- Centre for Plasma and Laser Engineering, Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 Street, 80-231 Gdańsk, Poland
| | - Łukasz Haryński
- Centre for Plasma and Laser Engineering, Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 Street, 80-231 Gdańsk, Poland
| | - Jakub Karczewski
- Faculty of Applied Physics and Mathematics, Institute of Nanotechnology and Materials Engineering, Gdańsk University of Technology, Narutowicza 11/12 Street, 80-233 Gdańsk, Poland
| | - Kacper Jurak
- Department of Biomedical Engineering, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, Narutowicza 11/12 Street, 80-233 Gdańsk, Poland
| | - Katarzyna Siuzdak
- Centre for Plasma and Laser Engineering, Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 Street, 80-231 Gdańsk, Poland
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6
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Said A, Zhang G, Liu C, Wang D, Niu H, Liu Y, Chen G, Tung CH, Wang Y. A butterfly-like lead-doped titanium-oxide compound with high performance in photocatalytic cycloaddition of CO 2 to epoxide. Dalton Trans 2023; 52:2392-2403. [PMID: 36723215 DOI: 10.1039/d2dt03990g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The cycloaddition reaction of CO2 to epoxides is quite promising for CO2 capture and storage as well as the production of value-added fine chemicals. Herein, a novel atomically precise lead-doped titanium-oxide cluster with the formula Ti10Pb2O16(phen)4(Ac)12(DMF)2 (denoted as Ti10Pb2; phen = 1,10-phenanthroline; Ac = acetate; DMF = dimethylformamide) was synthesized through a facile solvothermal process, and is a molecular photocatalyst with surface-anchored main-group metal active sites. Its structure was characterized by single-crystal X-ray diffraction and other complementary techniques. Ti10Pb2 showed high photo-response and charge-separation efficiency under simulated sunlight irradiation. Ti10Pb2 was successfully used in the cycloaddition reaction of CO2 with epoxides under solvent-free conditions. While its catalytic activity due to the Lewis acidity was moderate, simulated solar light irradiation further enhanced the reaction rate, demonstrating the synergistic effect of photocatalysis and Lewis-acid thermocatalysis.
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Affiliation(s)
- Amir Said
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Guanyun Zhang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Caiyun Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Dexin Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Huihui Niu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Yanshu Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Guanjie Chen
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Yifeng Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China. .,State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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7
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Cifre-Herrando M, Roselló-Márquez G, García-García DM, García-Antón J. Degradation of Methylparaben Using Optimal WO 3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4286. [PMID: 36500910 PMCID: PMC9740506 DOI: 10.3390/nano12234286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
In this work, WO3 nanostructures were synthesized with different complexing agents (0.05 M H2O2 and 0.1 M citric acid) and annealing conditions (400 °C, 500 °C and 600 °C) to obtain optimal WO3 nanostructures to use them as a photoanode in the photoelectrochemical (PEC) degradation of an endocrine disruptor chemical. These nanostructures were studied morphologically by a field emission scanning electron microscope. X-ray photoelectron spectroscopy was performed to provide information of the electronic states of the nanostructures. The crystallinity of the samples was observed by a confocal Raman laser microscope and X-ray diffraction. Furthermore, photoelectrochemical measurements (photostability, photoelectrochemical impedance spectroscopy, Mott-Schottky and water-splitting test) were also performed using a solar simulator with AM 1.5 conditions at 100 mW·cm-2. Once the optimal nanostructure was obtained (citric acid 0.01 M at an annealing temperature of 600 °C), the PEC degradation of methylparaben (CO 10 ppm) was carried out. It was followed by ultra-high-performance liquid chromatography and mass spectrometry, which allowed to obtain the concentration of the contaminant during degradation and the identification of degradation intermediates. The optimized nanostructure was proved to be an efficient photocatalyst since the degradation of methylparaben was performed in less than 4 h and the kinetic coefficient of degradation was 0.02 min-1.
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Wei Z, He Y, Xiao X, Huang Z, Jiao H. Coupled catalytic-biodegradation of toluene over manganese oxide-coated catalytic membranes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:73552-73562. [PMID: 35624373 DOI: 10.1007/s11356-022-20697-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Volatile organic compounds (VOCs) harm human health and the ecological environment. This work demonstrated manganese oxide catalytic membrane coupled to biodegradation of toluene in a catalytic membrane biofilm rector (CMBfR). Toluene removal efficiency in CMBfR was up to 91% in a 200-day operation. Manganese oxide combined to membrane biofilm reactor could promote degradation of toluene. Manganese oxide catalysts were characterized by XRD, Raman, XPS, and FT-IR. Raman and XPS spectra verified the existence of Mn defects, adsorbed oxygen species, and the oxygen vacancy, which was catalytic of toluene on the Mn oxides coated membranes significantly. Pseudomonas, Hydrogenophaga, Flavobacterium, Bacillus, Clostridium and Prosthecobacter were the dominant bacteria of toluene degradation. Mn oxides catalysis could degrade toluene into intermediate products; these products were entered into the biological phase eventually metabolized to CO2 and H2O. These results show that the catalytic membrane biofilm reactor is achievable and opens new possibilities for applying the catalytic membrane biofilm reactor to VOCs treatment.
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Affiliation(s)
- Zaishan Wei
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Yiming He
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiaoliang Xiao
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Zhenshan Huang
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Huaiyong Jiao
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
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Łęcki T, Hamad H, Zarębska K, Wierzyńska E, Skompska M. Mechanistic insight into photochemical and photoelectrochemical degradation of organic pollutants with the use of BiVO4 and BiVO4/Co-Pi. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Chen F, Tian L, Liu B, Sun Y, Ge S, Hou J. Investigation on the gaseous benzene removed by photocatalysis employing TiO 2 modified with cobalt and iodine as photocatalysts under visible light. ENVIRONMENTAL TECHNOLOGY 2022; 43:2990-2999. [PMID: 33820487 DOI: 10.1080/09593330.2021.1912833] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
A new type of photocatalysts, nanocrystalline titanium dioxide (TiO2) doped with Co and I, were synthesized and modified via the sol-gel method to enhance the utilization of visible light. Herein, mono- and co-doped TiO2 (i.e. Co-TiO2, I-TiO2, Co-I-TiO2) were employed as the photocatalysts to investigate the photocatalytic performance on gaseous benzene removal. The prepared photocatalysts were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET)-specific surface areas, Raman spectroscopy, UV-visible diffuse reflectance spectroscopy (UV-vis-DRS), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL), and electrochemical impedance spectroscopy (EIS). Results indicated that both particle sizes and band gaps of TiO2 were significantly reduced by doping with Co/I. Also, the lattice defects and the specific surface areas of TiO2 were substantially augmented by adding Co/I because of the increase of oxygen vacancies, especially for Co-I-TiO2. Meanwhile, Co and I were distributed on the titanium base with the existence of multivalent states. The benzene treatment capacity of Co-I-TiO2, Co-TiO2, I-TiO2 and Pure TiO2 is 441.46, 424.36, 388.06, and 51.25 μgC6H6/(g·h), respectively. To sum up, photocatalytic degradation of gaseous benzene could be improved by doping with Co/I because of the extension of catalyst lifetime and light response range covering visible light.
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Affiliation(s)
- Fulong Chen
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, People's Republic of China
| | - Lijiang Tian
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, People's Republic of China
| | - Bingkun Liu
- Sinoma International Engineering Co., Ltd., Nanjing, People's Republic of China
| | - Yue Sun
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, People's Republic of China
| | - Sijie Ge
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, People's Republic of China
| | - Jing Hou
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, People's Republic of China
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11
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Narouie S, Rounaghi GH, Saravani H, Shahbakhsh M. Iodine/iodide-doped polymeric nanospheres for simultaneous voltammetric detection of p-aminophenol, phenol, and p-nitrophenol. Mikrochim Acta 2022; 189:267. [PMID: 35779180 DOI: 10.1007/s00604-022-05361-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/25/2022] [Indexed: 11/29/2022]
Abstract
A sensor was developed for the first time based on polydopamine nanospheres doped with I2, I-, and IO3- species (PDA-Iodine), to determine the concentration of p-aminophenol (p-AP), phenol (Ph), and p-nitrophenol (p-NP) simultaneously. These polymeric nanospheres were successfully characterized using a variety of techniques including field emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared, Raman spectroscopy, and X-ray diffraction analysis. A carbon paste electrode was modified with the PDA-Iodine (CPE/PDA-Iodine). Because of the electrocatalytic activity of DA/DQ, I2 and I- species (in the structure of PDA-Iodine), CPE/PDA-Iodine shows enhancement in the electrooxidation peak currents as well as slight negative shift in peak potentials of p-AP, Ph, and p-NP compared with a bare carbon paste electrode. Under optimal experimental conditions, the linear calibration plots are linear in the ranges 0.5-120 μM for p-AP, 0.7-120 μM for Ph, and 1.0-100 μM for p-NP with limits of detection of 30, 40, and 80 nM for p-AP, Ph, and p-NP, respectively (S/N = 3). To prove the performance of the method, the repeatability of the signals of CPE/PDA-Iodine was evaluated and the RSD values obtained were 2.9%, 3.2%, and 3.1% for p-AP (45 µM), Ph (40 µM), and p-NP (40 µM), respectively. The CPE/PDA-Iodine is a promising new sensor for sensing p-AP, Ph, and p-NP simultaneously in tap and river water sample and the values of recoveries for spiked samples were in the range 94.0-104.4%.
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Affiliation(s)
- Sabereh Narouie
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, P.O. Box 9177948974, Mashhad, Iran
| | - Gholam Hossein Rounaghi
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, P.O. Box 9177948974, Mashhad, Iran.
| | - Hamideh Saravani
- Inorganic Chemistry Research Laboratory, Department of Chemistry, University of Sistan and Baluchestan, P.O. Box 98135-674, Zahedan, Iran
| | - Mehdi Shahbakhsh
- Analytical Chemistry Research Laboratory, Department of Chemistry, University of Sistan and Baluchestan, P.O. Box 98135-674, Zahedan, Iran
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Trzciński K, Szkoda M, Zarach Z, Sawczak M, Nowak AP. Towards spectroscopic monitoring of photoelectrodes: In-situ Raman photoelectrochemistry of a TiO2/prussian blue photoanode. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Santos JS, Fereidooni M, Marquez V, Arumugam M, Tahir M, Praserthdam S, Praserthdam P. Single-step fabrication of highly stable amorphous TiO 2 nanotubes arrays (am-TNTA) for stimulating gas-phase photoreduction of CO 2 to methane. CHEMOSPHERE 2022; 289:133170. [PMID: 34875298 DOI: 10.1016/j.chemosphere.2021.133170] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/14/2021] [Accepted: 12/02/2021] [Indexed: 06/13/2023]
Abstract
This study investigates the facile fabrication of interfacial defects assisted amorphous TiO2 nanotubes arrays (am-TNTA) for promoting gas-phase CO2 photoreduction to methane. The am-TNTA catalyst was fabricated via a one-step synthesis, without heat treatment, by anodization of Titanium in Ethylene glycol-based electrolyte in a shorter anodizing time. The samples presented a TiO2 nanostructured array with a nanotubular diameter of 100 ± 10 nm, a wall thickness of 26 ± 5 nm, and length of 3.7 ± 0.3 μm, resulting in a specific surface of 0.75 m2 g. The am-TNTA presented prolonged chemical stability, a high exposed surface area, and a large number of surface traps that can reduce the recombination of the charge carriers. The am-TNTA showed promising photoactivity when tested in the CO2 reduction reaction with water under UV irradiation with a methane production rate of 14.0 μmol gcat-1 h-1 for a pure TiO2 material without any modification procedure. This enhanced photocatalytic activity can be explained in terms of surface defects of the amorphous structure, mainly OH groups that can act as electron traps for increasing the electron lifetime. The CO2 interacts directly with those traps, forming carbonate species, which favors the catalytic conversion to methane. The am-TNTA also exhibited a high stability during six reaction cycles. The photocatalytic activity, the significantly reduced time for synthesis, and high stability for continuous CH4 production make this nanomaterial a potential candidate for a sustainable CO2 reduction process and can be employed for other energy applications.
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Affiliation(s)
- Janaina S Santos
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Mohammad Fereidooni
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Victor Marquez
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Malathi Arumugam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Muhammad Tahir
- Chemical and Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates; Chemical Reaction Engineering Group (CREG), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM, Johor Bahru, Johor, Malaysia
| | - Supareak Praserthdam
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Piyasan Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
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14
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Roselló-Márquez G, Fernández-Domene R, Sánchez-Tovar R, García-Antón J. Influence of annealing conditions on the photoelectrocatalytic performance of WO3 nanostructures. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116417] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Nano-morphology, crystallinity and surface potential of anatase on micro-arc oxidized titanium affect its protein adsorption, cell proliferation and cell differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110204. [DOI: 10.1016/j.msec.2019.110204] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/29/2019] [Accepted: 09/12/2019] [Indexed: 12/26/2022]
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16
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Olejnik A, Siuzdak K, Karczewski J, Grochowska K. A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures. ELECTROANAL 2019. [DOI: 10.1002/elan.201900455] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Adrian Olejnik
- Faculty of ChemistryGdańsk University of Technology Narutowicza 11/12 St. 80-233 Gdańsk Poland
| | - Katarzyna Siuzdak
- Centre for Plasma and Laser Engineering, The Szewalski Institute of Fluid-Flow MachineryPolish Academy of Sciences Fiszera 14 St. 80-231 Gdańsk Poland
| | - Jakub Karczewski
- Faculty of Applied Physics and MathematicsGdańsk University of Technology Narutowicza 11/12 St. 80-233 Gdańsk Poland
| | - Katarzyna Grochowska
- Centre for Plasma and Laser Engineering, The Szewalski Institute of Fluid-Flow MachineryPolish Academy of Sciences Fiszera 14 St. 80-231 Gdańsk Poland
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17
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Nath K, Chandra M, Pradhan D, Biradha K. Supramolecular Organic Photocatalyst Containing a Cubanelike Water Cluster and Donor-Acceptor Stacks: Hydrogen Evolution and Dye Degradation under Visible Light. ACS APPLIED MATERIALS & INTERFACES 2018; 10:29417-29424. [PMID: 30106559 DOI: 10.1021/acsami.8b07437] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Supramolecular organic photocatalysts are scarcely explored for the generation of sustainable energy as well as for environmental remediation purposes. An organic photocatalyst, containing a cubanelike water cluster and donor-acceptor stacks, was efficiently developed through a supramolecular approach. The material exhibited remarkable photocatalytic hydrogen generation, in the absence of any cocatalyst, with excellent stability and recyclability. The photoactivity was further assessed through time-resolved photoluminescence and electrochemical impedance spectroscopy. The material also exhibited highly efficient sunlight-driven photocatalytic activity through the degradation of harmful organic dye methylene blue.
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18
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Szkoda M, Nowaczyk G, Lisowska-Oleksiak A, Siuzdak K. The influence of polarization of titania nanotubes modified by a hybrid system made of a conducting polymer PEDOT and Prussian Blue redox network on the Raman spectroscopy response and photoelectrochemical properties. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.05.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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19
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Szkoda M, Trzciński K, Nowak A, Coy E, Wicikowski L, Łapiński M, Siuzdak K, Lisowska-Oleksiak A. Titania nanotubes modified by a pyrolyzed metal-organic framework with zero valent iron centers as a photoanode with enhanced photoelectrochemical, photocatalytical activity and high capacitance. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.05.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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20
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Fu Y, Mo A. A Review on the Electrochemically Self-organized Titania Nanotube Arrays: Synthesis, Modifications, and Biomedical Applications. NANOSCALE RESEARCH LETTERS 2018; 13:187. [PMID: 29956033 PMCID: PMC6023805 DOI: 10.1186/s11671-018-2597-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 06/07/2018] [Indexed: 02/05/2023]
Abstract
Titania nanotubes grown by anodic oxidation have intrigued the material science community by its many unique and potential properties, and the synthesis of technology is merging to its mature stage. The present review will focus on TiO2 nanotubes grown by self-organized electrochemical anodization from Ti metal substrate, which critically highlights the synthesis of this type of self-organized titania nanotube layers and the means to influence the size, shape, the degree of order, and crystallized phases via adjusting the anodization parameters and the subsequent thermal annealing. The relationship between dimensions and properties of the anodic TiO2 nanotube arrays will be presented. The latest progress and significance of the research on formation mechanism of anodic TiO2 nanotubes are briefly discussed. Besides, we will show the most promising applications reported recently in biomedical directions and modifications carried out by doping, surface modification, and thermal annealing toward improving the properties of anodically formed TiO2 nanotubes. At last, some unsolved issues and possible future directions of this field are indicated.
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Affiliation(s)
- Yu Fu
- State Key Laboratory of Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 China
| | - Anchun Mo
- State Key Laboratory of Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 China
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21
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Ali S, Granbohm H, Lahtinen J, Hannula SP. Titania nanotubes prepared by rapid breakdown anodization for photocatalytic decolorization of organic dyes under UV and natural solar light. NANOSCALE RESEARCH LETTERS 2018; 13:179. [PMID: 29900489 PMCID: PMC5999600 DOI: 10.1186/s11671-018-2591-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
Titania nanotube (TNT) powder was prepared by rapid breakdown anodization (RBA) in a perchloric acid electrolyte. The photocatalytic efficiency of the as-prepared and powders annealed at temperatures between 250 and 550 °C was tested under UV and natural sunlight irradiation by decolorization of both anionic and cationic organic dyes, i.e., methyl orange (MO) and rhodamine B (RhB), as model pollutants. The tubular structure of the nanotubes was retained up to 250 °C, while at 350 °C and above, the nanotubes transformed into nanorods and nanoparticles. Depending on the annealing temperature, the TNTs consist of anatase, mixed anatase/brookite, or anatase/rutile phases. The bandgap of the as-prepared nanotubes is 3.04 eV, and it shifts towards the visible light region upon annealing. The X-ray photoelectron spectroscopy (XPS) results show the presence of titania and impurities including chlorine on the surface of the TNTs. The atomic ratio of Ti/O remains unchanged for the annealed TNTs, but the concentration of chlorine decreases with temperature. The photoluminescence (PL) indicate high electron-hole recombination for the as-prepared TNTs, probably due to the residual impurities, low crystallinity, and vacancies in the structure, while the highest photocurrent was observed for the TNT sample annealed at 450 °C. The TNTs induce a small degradation of the dyes under UV light; however, contrary to previous reports, complete decolorization of dyes is observed under sunlight. All TNT samples showed higher decolorization rates under sunlight irradiation than under UV light. The highest reaction rate for the TNT samples was obtained for the as-prepared TNT powder sample under sunlight using RhB (κ1 = 1.29 h-1). This is attributed to the bandgap, specific surface area and the crystal structure of the nanotubes. The as-prepared TNTs performed most efficiently for decolorization of RhB and outperformed the reference anatase powder under sunlight irradiation. This could be attributed to the abundance of reactive sites, higher specific surface area, and degradation mechanism of RhB. These RBA TNT photocatalyst powders demonstrate a more efficient use of the sunlight spectrum, making them viable for environmental remediation.
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Affiliation(s)
- Saima Ali
- Department of Chemistry and Materials Science, Aalto University School of Chemical Engineering, P.O. Box 16100, FI-00076 Espoo, Finland
| | - Henrika Granbohm
- Department of Chemistry and Materials Science, Aalto University School of Chemical Engineering, P.O. Box 16100, FI-00076 Espoo, Finland
| | - Jouko Lahtinen
- Department of Applied Physics, School of Science, Aalto University, P.O. Box 15100, FI 00076 Espoo, Finland
| | - Simo-Pekka Hannula
- Department of Chemistry and Materials Science, Aalto University School of Chemical Engineering, P.O. Box 16100, FI-00076 Espoo, Finland
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22
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Demirci S, Yurddaskal M, Dikici T, Sarıoğlu C. Fabrication and characterization of novel iodine doped hollow and mesoporous hematite (Fe 2O 3) particles derived from sol-gel method and their photocatalytic performances. JOURNAL OF HAZARDOUS MATERIALS 2018; 345:27-37. [PMID: 29128724 DOI: 10.1016/j.jhazmat.2017.11.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 10/24/2017] [Accepted: 11/05/2017] [Indexed: 05/16/2023]
Abstract
In this work, iodine (I) doped hollow and mesoporous Fe2O3 photocatalyst particles were fabricated for the first time through sol-gel method. Phase structure, surface morphology, particle size, specific surface area and optical band gap of the synthesized Fe2O3 photocatalysts were analyzed by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), X-ray photoelectron spectroscopy (XPS), BET surface analysis, particle size analyzer and UV-vis diffuse reflectance spectrum (UV-vis DRS), respectively. Also, electrochemical properties and photoluminescence spectra of Fe2O3 particles were measured. The results illustrated that high crystalline, hollow and mesoporous Fe2O3 particles were formed. The optical band gap values of the Fe2O3 photocatalysts changed between 2.104 and 1.93eV. Photocatalytic efficiency of Fe2O3 photocatalysts were assessed via MB solution. The photocatalytic activity results exhibited that I doping enhanced the photocatalytic efficiency. 1% mole iodine doped (I-2) Fe2O3 photocatalyst had 97.723% photodegradation rate and 8.638×10-2min-1 kinetic constant which showed the highest photocatalytic activity within 45min. Moreover, stability and reusability experiments of Fe2O3 photocatalysts were carried out. The Fe2O3 photocatalysts showed outstanding stability after four sequence tests. As a result, I doped Fe2O3 is a good candidate for photocatalysts.
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Affiliation(s)
- Selim Demirci
- Department of Metallurgical and Materials Engineering, Marmara University, Kadiköy, 34722, Istanbul, Turkey; Institute of Pure and Applied Sciences, Marmara University, Kadiköy, 34722, Istanbul, Turkey.
| | - Metin Yurddaskal
- The Graduate School of Natural and Applied Sciences, Dokuz Eylul University, Buca, 35390, Izmir, Turkey; Center for Fabrication and Application of Electronic Materials, Dokuz Eylul University, Buca, 35390, Izmir, Turkey
| | - Tuncay Dikici
- Center for Fabrication and Application of Electronic Materials, Dokuz Eylul University, Buca, 35390, Izmir, Turkey
| | - Cevat Sarıoğlu
- Department of Metallurgical and Materials Engineering, Marmara University, Kadiköy, 34722, Istanbul, Turkey
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23
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Does the low optical band gap of yellow Bi3YO6 guarantee the photocatalytical activity under visible light illumination? J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-3918-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Nagarajan V, Nitthin Ananth AJ, Ramaswamy S. Remarkable Enhancement on Optical Properties of Alkali Metals Doped Anthracene Crystals. CRYSTAL RESEARCH AND TECHNOLOGY 2017. [DOI: 10.1002/crat.201700217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vairakani Nagarajan
- Research centre & PG Department of Physics; NMSSVN College; Madurai 625019 Tamilnadu India
| | | | - Seenivasan Ramaswamy
- Research centre & PG Department of Physics; NMSSVN College; Madurai 625019 Tamilnadu India
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25
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Hwang J, Kalanur SS, Seo H. Identification of Visible Photocatalytic and Photoelectrochemical Properties of I-TiO2 via Electronic Band Structure. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.09.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Li X, Liu X, Lin C, Qi C, Zhang H, Ma J. Enhanced activation of periodate by iodine-doped granular activated carbon for organic contaminant degradation. CHEMOSPHERE 2017; 181:609-618. [PMID: 28476000 DOI: 10.1016/j.chemosphere.2017.04.134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/31/2017] [Accepted: 04/26/2017] [Indexed: 06/07/2023]
Abstract
In this study, iodine-doped granular activated carbon (I-GAC) was prepared and subsequently applied to activate periodate (IO4-) to degrade organic contaminants at ambient temperature. The physicochemical properties of GAC and I-GAC were examined using scanning electron microscopy, N2 adsorption/desorption, Raman spectroscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. No significant difference was observed between the two except for the existence of triiodide (I3-) and pentaiodide (I5-) on I-GAC. The catalytic activity of I-GAC towards IO4- was evaluated by the degradation of acid orange 7 (AO7), and superior catalytic performance was achieved compared with GAC. The effects of some influential parameters (preparation conditions, initial solution pH, and coexisting anions) on the catalytic ability were also investigated. Based on radical scavenging experiments, it appeared that IO3 was the predominant reactive species in the I-GAC/IO4- system. The mechanism underlying the enhanced catalytic performance of I-GAC could be explained by the introduction of negatively charged I3- and I5- into I-GAC, which induced positive charge density on the surface of I-GAC. This accelerated the interaction between I-GAC and IO4-, and subsequently mediated the increasing generation of iodyl radicals (IO3). Furthermore, a possible degradation pathway of AO7 was proposed according to the intermediate products identified by gas chromatography-mass spectrometry.
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Affiliation(s)
- Xiaowan Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xitao Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Chunye Lin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Chengdu Qi
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Huijuan Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Jun Ma
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
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27
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Ordered titanium templates functionalized by gold films for biosensing applications – Towards non-enzymatic glucose detection. Talanta 2017; 166:207-214. [DOI: 10.1016/j.talanta.2017.01.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 01/24/2017] [Accepted: 01/26/2017] [Indexed: 11/24/2022]
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28
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Electrochemical and photoelectrochemical characterization of photoanodes based on titania nanotubes modified by a BiVO4 thin film and gold nanoparticles. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.194] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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29
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Nischk M, Mazierski P, Wei Z, Siuzdak K, Kouame NA, Kowalska E, Remita H, Zaleska-Medynska A. Enhanced photocatalytic, electrochemical and photoelectrochemical properties of TiO 2 nanotubes arrays modified with Cu, AgCu and Bi nanoparticles obtained via radiolytic reduction. APPLIED SURFACE SCIENCE 2016; 387:89-102. [PMID: 27917012 PMCID: PMC5009629 DOI: 10.1016/j.apsusc.2016.06.066] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 06/07/2016] [Accepted: 06/10/2016] [Indexed: 05/23/2023]
Abstract
TiO2 nanotubes arrays (NTs), obtained via electrochemical anodization of Ti foil, were modified with monometallic (Cu, Bi) and bimetallic (AgCu) nanoparticles. Different amounts of metals' precursors were deposited on the surface of NTs by the spin-coating technique, and the reduction of metals was performed via gamma radiolysis. Surface modification of titania was studied by EDS and XPS analysis. The results show that AgCu nanoparticles exist in a Agcore-Cushell form. Photocatalytic activity was examined under UV irradiation and phenol was used as a model pollutant of water. Over 95% of phenol degradation was achieved after 60 min of irradiation for almost all examined samples, but only slight difference in degradation efficiency (about 3%) between modified and bare NTs was observed. However, the initial phenol degradation rate and TOC removal efficiency was significantly enhanced for the samples modified with 0.31 and 0.63 mol% of Bi as well as for all the samples modified with Cu and AgCu nanoparticles in comparison with bare titania nanotubes. The saturated photocurrent, under the influence of simulated solar light irradiation, for the most active Bi- and AgCu-modified samples, was over two times higher than for pristine NTs. All the examined materials were resistant towards photocorrosion processes that enables their application for long term processes induced by light.
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Affiliation(s)
- Michał Nischk
- Department of Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, 11/12 G. Narutowicza 11/12 St., 80-233 Gdansk, Poland
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 63 Wita Stwosza St., 80-308 Gdansk, Poland
| | - Paweł Mazierski
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 63 Wita Stwosza St., 80-308 Gdansk, Poland
| | - Zhishun Wei
- Institute for Catalysis, Hokkaido University, N21, W10, 001-0021, Sapporo, Japan
| | - Katarzyna Siuzdak
- Centre for Plasma and Laser Engineering, The Szewalski Institute of Fluid-Flow Machinery, Polish Academy of Sciences, 14 Fiszera St., 80-231 Gdansk, Poland
| | - Natalie Amoin Kouame
- Laboratoire de Chimie Physique, CNRS—UMR 8000,Université Paris-Sud, Université Paris-Saclay, Bâtiment 349, 91405 Orsay, France
| | - Ewa Kowalska
- Institute for Catalysis, Hokkaido University, N21, W10, 001-0021, Sapporo, Japan
| | - Hynd Remita
- Laboratoire de Chimie Physique, CNRS—UMR 8000,Université Paris-Sud, Université Paris-Saclay, Bâtiment 349, 91405 Orsay, France
| | - Adriana Zaleska-Medynska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 63 Wita Stwosza St., 80-308 Gdansk, Poland
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30
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Sun Q, Yang C, Li J, Raza H, Zhang L. Lycopene: Heterogeneous Catalytic E
/Z
Isomerization and In Vitro
Bioaccessibility Assessment Using a Diffusion Model. J Food Sci 2016; 81:C2381-C2389. [DOI: 10.1111/1750-3841.13419] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 06/26/2016] [Accepted: 07/19/2016] [Indexed: 11/26/2022]
Affiliation(s)
- Qingrui Sun
- State Key Laboratory of Food Science and Technology; Wuxi 214122 China
- College of Food Science; Heilongjiang Bayi Agricultural Univ; Daqing 163319 China
| | - Cheng Yang
- School of Food Science and Technology; Jiangnan Univ; Wuxi 214122 China
| | - Jing Li
- School of Food Science and Technology; Jiangnan Univ; Wuxi 214122 China
| | - Husnain Raza
- School of Food Science and Technology; Jiangnan Univ; Wuxi 214122 China
| | - Lianfu Zhang
- State Key Laboratory of Food Science and Technology; Wuxi 214122 China
- School of Food Science and Technology; Jiangnan Univ; Wuxi 214122 China
- Natl. Engineering Research Center for Functional Food; Wuxi 214122 China
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31
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Optimization of boron-doping process of titania nanotubes via electrochemical method toward enhanced photoactivity. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3185-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Sun Q, Yang C, Li J, Aboshora W, Raza H, Zhang L. Highly efficient trans–cis isomerization of lycopene catalyzed by iodine-doped TiO2nanoparticles. RSC Adv 2016. [DOI: 10.1039/c5ra24074c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Highly efficienttrans–cisisomerization of lycopene was achieved in the presence of a novel iodine-doped titanium dioxide (I-TiO2) catalyst.
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Affiliation(s)
- Qingrui Sun
- State Key Laboratory of Food Science and Technology
- Wuxi 214122
- China
- School of Food Science and Technology
- Bayi Agricultural University
| | - Cheng Yang
- School of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
| | - Jing Li
- School of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
| | - Waleed Aboshora
- School of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
| | - Husnain Raza
- School of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
| | - Lianfu Zhang
- State Key Laboratory of Food Science and Technology
- Wuxi 214122
- China
- School of Food Science and Technology
- Jiangnan University
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33
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Wang Y, Fang HB, Ye RQ, Zheng YZ, Li N, Tao X. Functionalization of ZnO aggregate films via iodine-doping and TiO2 decorating for enhanced visible-light-driven photocatalytic activity and stability. RSC Adv 2016. [DOI: 10.1039/c6ra00903d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A multifunctional visible-light-driven photocatalyst composed of ZnO aggregates film via iodine-doping and TiO2 decorating is developed.
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Affiliation(s)
- Yuan Wang
- State Key Laboratory of Organic–Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Hua-Bin Fang
- State Key Laboratory of Organic–Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Rong-Qin Ye
- State Key Laboratory of Organic–Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yan-Zhen Zheng
- State Key Laboratory of Organic–Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Research Center of the Ministry of Education for High Gravity Engineering & Technology
| | - Nan Li
- State Key Laboratory of Organic–Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Xia Tao
- State Key Laboratory of Organic–Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
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34
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Siuzdak K, Szkoda M, Lisowska-Oleksiak A, Karczewski J, Ryl J. Highly stable organic–inorganic junction composed of hydrogenated titania nanotubes infiltrated by a conducting polymer. RSC Adv 2016. [DOI: 10.1039/c6ra01986b] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A poly(3,4-ethylenedioxythiophene) conducting polymer doped with poly(2-styrene sulfonate) (pEDOT:PSS) was efficiently electrodeposited on a layer composed of ordered titania nanotubes.
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Affiliation(s)
- Katarzyna Siuzdak
- Centre
- for Plasma and Laser Engineering
- Szewalski Institute of Fluid Flow Machinery
- Polish Academy of Science
- Gdańsk 80-231
| | - Mariusz Szkoda
- Department of Chemistry and Technology of Functional Materials
- Chemical Faculty
- Gdańsk University of Technology
- Gdańsk 80-233
- Poland
| | - Anna Lisowska-Oleksiak
- Department of Chemistry and Technology of Functional Materials
- Chemical Faculty
- Gdańsk University of Technology
- Gdańsk 80-233
- Poland
| | - Jakub Karczewski
- Faculty of Applied Physics and Mathematics
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
| | - Jacek Ryl
- Department of Electrochemistry, Corrosion and Materials Engineering
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
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35
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Szkoda M, Siuzdak K, Lisowska-Oleksiak A, Karczewski J, Ryl J. Facile preparation of extremely photoactive boron-doped TiO 2 nanotubes arrays. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2015.09.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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