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Cosma DV, Tudoran C, Coroș M, Socaci C, Urda A, Turza A, Roșu MC, Barbu-Tudoran L, Stanculescu I. Modification of Cotton and Leather Surfaces Using Cold Atmospheric Pressure Plasma and TiO 2-SiO 2-Reduced Graphene Oxide Nanopowders. Materials (Basel) 2023; 16:1397. [PMID: 36837027 PMCID: PMC9967795 DOI: 10.3390/ma16041397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/01/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Surface modification of textile fabrics and leathers is very versatile and allows the products quality improvement. In this work, cotton and leather substrates were pre-treated with cold atmospheric pressure plasma (CAPP) and further coated with TiO2-SiO2-reduced graphene oxide composites in dispersion form. By using a Taguchi scheme, this research evaluated the effect of three significant parameters, i.e., the pre-treatment with CAPP, organic dispersion coating and TiO2-SiO2-reduced graphene oxide (TS/GR) composites, that may affect the morpho-structural properties and photocatalytic activity of modified cotton and leather surfaces. The characteristics of cotton/leather surfaces were evaluated by morphological, structural, optical and self-cleaning ability using scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX), X-ray powder diffraction (XRD), attenuated total reflection-Fourier Transform Infrared spectroscopy (ATR-FTIR) and UV-Vis spectroscopy. The self-cleaning performance of the obtained cotton and leather samples was evaluated by photocatalytic discoloration of berry juice surface stains under UV light irradiation for 12 h. The successfulness of coating formulations was proven by the SEM analysis and UV-Vis spectroscopy. The XRD patterns and ATR-FTIR spectra revealed the cellulose and collagen structures as dominant components of cotton and leather substrates. The CAPP treatment did not damage the cotton and leather structures. The photocatalytic results highlighted the potential of TiO2-SiO2-reduced graphene oxide composites in organic dispersion media, as coating formulations, for further use in the fabrication of innovative self-cleaning photocatalytic cotton and leather products.
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Affiliation(s)
- Dragoș-Viorel Cosma
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM), 67-103 Donat Street, 400293 Cluj-Napoca, Romania
| | - Cristian Tudoran
- Cetatea, National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM), 67-103 Donat Street, 400293 Cluj-Napoca, Romania
| | - Maria Coroș
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM), 67-103 Donat Street, 400293 Cluj-Napoca, Romania
| | - Crina Socaci
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM), 67-103 Donat Street, 400293 Cluj-Napoca, Romania
| | - Alexandra Urda
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM), 67-103 Donat Street, 400293 Cluj-Napoca, Romania
| | - Alexandru Turza
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM), 67-103 Donat Street, 400293 Cluj-Napoca, Romania
| | - Marcela-Corina Roșu
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies (INCDTIM), 67-103 Donat Street, 400293 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Electron Microscopy Center “Prof. C. Crăciun”, Faculty of Biology & Geology, “Babeș-Bolyai” University, 5-7 Clinicilor Street, 400006 Cluj-Napoca, Romania
- Electron Microscopy Integrated Laboratory, National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania
| | - Ioana Stanculescu
- Analytical Chemistry and Physical Chemistry Department, Faculty of Chemistry, University of Bucharest, Regina Elisabeta, no. 4-12, 030018 Bucharest, Romania
- Horia Hulubei National Institute of Research and Development for Physics and Nuclear Engineering, 30 Reactorului Str., 077125 Magurele, Romania
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Liao S, Lin L, Huang J, Jing X, Chen S, Li Q. Microorganism-Templated Nanoarchitectonics of Hollow TiO 2-SiO 2 Microspheres with Enhanced Photocatalytic Activity for Degradation of Methyl Orange. Nanomaterials (Basel) 2022; 12:1606. [PMID: 35564314 DOI: 10.3390/nano12091606] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 12/04/2022]
Abstract
In this study, hollow SiO2 microspheres were synthesized by the hydrolysis of tetraethyl orthosilicate (TEOS) according to the Stober process, in which Pichia pastoris GS 115 cells were served as biological templates. The influence of the preprocessing method, the TEOS concentration, the ratio of water to ethanol, and the aging time on the morphology of microspheres was investigated and the optimal conditions were identified. Based on this, TiO2-SiO2 microspheres were prepared by the hydrothermal process. The structures and physicochemical properties of TiO2-SiO2 photocatalysts were systematically characterized and discussed. The photocatalytic activity for the degradation of methyl orange (MO) at room temperature under Xe arc lamp acting as simulated sunlight was explored. The result showed that the as-prepared TiO2-SiO2 microspheres exhibited a good photocatalytic performance.
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Antonov DO, Tambasova DP, Shishmakov AB, Kirilyuk IA, Kovaleva EG. Acidic and Electrosurface Properties of Binary TiO 2-SiO 2 Xerogels Using EPR of pH-Sensitive Nitroxides. Gels 2021; 7:119. [PMID: 34449616 PMCID: PMC8395927 DOI: 10.3390/gels7030119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/03/2021] [Accepted: 08/06/2021] [Indexed: 11/16/2022] Open
Abstract
The binary xerogels TiO2-SiO2 are widely used as catalysts and their carriers in organic synthesis. Characterization and adjustment of the electrostatic properties of the surface and the local acidity inside the pores, are necessary for the further development of TiO2-SiO2 xerogels applications. This research investigates acid-base equilibria in the pores, and the surface electrostatic potential (SEP) of binary TiO2-SiO2 xerogels, by the EPR of stable pH-sensitive nitroxide radicals. These radicals are small enough to penetrate directly into the pores, and to be adsorbed onto the surface of the material under study. This makes it possible to obtain valuable information on the acidic and electrosurface properties of the studied system. The highest negative surface electrical charge associated with surface electrical potential (SEP) was equal to -196 ± 6 mV. It was induced by the surface of the sample with a 7% TiO2 content. The local acidity inside the pores of this sample was found to be higher, by approximately 1.49 pH units, as compared to that in the external bulk solution.
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Affiliation(s)
- Denis O. Antonov
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B N Yeltsin, Mira St., 19, 620002 Yekaterinburg, Russia; (D.P.T.); (E.G.K.)
| | - Daria P. Tambasova
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B N Yeltsin, Mira St., 19, 620002 Yekaterinburg, Russia; (D.P.T.); (E.G.K.)
| | - Andrey B. Shishmakov
- Laboratory of Organic Materials, I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Akademicheskaya/S. Kovalevskoy, 22/20, 620990 Ekaterinburg, Russia;
| | - Igor A. Kirilyuk
- Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Akad. Lavrent’ev Av. 9, 630090 Novosibirsk, Russia;
| | - Elena G. Kovaleva
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B N Yeltsin, Mira St., 19, 620002 Yekaterinburg, Russia; (D.P.T.); (E.G.K.)
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Joseph CG, Taufiq-Yap YH, Musta B, Sarjadi MS, Elilarasi L. Application of Plasmonic Metal Nanoparticles in TiO 2-SiO 2 Composite as an Efficient Solar-Activated Photocatalyst: A Review Paper. Front Chem 2021; 8:568063. [PMID: 33628762 PMCID: PMC7897925 DOI: 10.3389/fchem.2020.568063] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 12/18/2020] [Indexed: 11/23/2022] Open
Abstract
Over the last decade, interest in the utilization of solar energy for photocatalysis treatment processes has taken centre-stage. Researchers had focused on doping TiO2 with SiO2 to obtain an efficient degradation rate of various types of target pollutants both under UV and visible-light irradiation. In order to further improve this degradation effect, some researchers resorted to incorporate plasmonic metal nanoparticles such as silver and gold into the combined TiO2-SiO2 to fully optimize the TiO2-SiO2’s potential in the visible-light region. This article focuses on the challenges in utilizing TiO2 in the visible-light region, the contribution of SiO2 in enhancing photocatalytic activities of the TiO2-SiO2 photocatalyst, and the ability of plasmonic metal nanoparticles (Ag and Au) to edge the TiO2-SiO2 photocatalyst toward an efficient solar photocatalyst.
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Affiliation(s)
- Collin G Joseph
- Sonophotochemistry Research Group, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Kota Kinabalu, Sabah.,Water Research Unit, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Kota Kinabalu, Sabah.,Industrial Chemistry Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Kota Kinabalu, Sabah
| | - Yun Hin Taufiq-Yap
- Chancellery Office, Universiti Malaysia Sabah, Kota Kinabalu, Sabah.,Catalysis Science and Technology Research Centre, Faculty of Science, Universiti Putra Malaysia, Serdang, Malaysia.,Industrial Chemistry Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Kota Kinabalu, Sabah
| | - Baba Musta
- Water Research Unit, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Kota Kinabalu, Sabah
| | - Mohd Sani Sarjadi
- Industrial Chemistry Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Kota Kinabalu, Sabah
| | - L Elilarasi
- Sonophotochemistry Research Group, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Kota Kinabalu, Sabah.,Centre of Foundation, Language and Malaysian Studies, International University of Malaya-Wales, Kuala Lumpur, Malaysia
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Šuligoj A, Pliekhova O, Vodišek N, Mihelčič M, Surca AK, Kunič R, Šubic B, Starman J, Ugovšek A, Lavrenčič Štangar U. Field Test of Self-Cleaning Zr-Modified-TiO 2-SiO 2 Films on Glass with a Demonstration of Their Anti-Fogging Effect. Materials (Basel) 2019; 12:ma12132196. [PMID: 31288427 PMCID: PMC6651866 DOI: 10.3390/ma12132196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 12/17/2022]
Abstract
The number of commercial products claiming self-cleaning properties is rising and testing of long-term activity and durability of such coatings needs to be addressed more. The time-dependent changes of different characteristics like haze, transparency, and color are essential for transparent glazing materials. Herein, we aimed to examine whether the laboratory results obtained on the Zr-modified-titania-silica (TiZr) self-cleaning materials would translate to larger-scale outdoor-exposed testing. TiZr thin films were deposited via spraying onto float glass window surfaces and exposed into three different environments for 20 months. For comparison, a commercially available active SGG BIOCLEANTM glass and standard float glass were simultaneously exposed in the same conditions. It was shown that the self-cleaning property of either a commercial product or TiZr-coated float glass was not considerably effective in real field test conditions, although the previous laboratory tests showed pronounced photocatalytic activity of TiZr thin films. The inclination angle; however, was shown to have a considerable effect on the self-cleaning ability of samples, as did the rain patterns during the testing period. On the other hand, the anti-fogging effect of our TiZr material was very well expressed in controlled laboratory conditions (measuring droplet formation time) as well as in the real outdoor environment.
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Affiliation(s)
- Andraž Šuligoj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia.
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia.
| | - Olena Pliekhova
- University of Nova Gorica, Vipavska 13, SI-5000 Nova Gorica, Slovenia
| | - Nives Vodišek
- University of Nova Gorica, Vipavska 13, SI-5000 Nova Gorica, Slovenia
| | - Mohor Mihelčič
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Angelja K Surca
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Roman Kunič
- Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia
| | - Barbara Šubic
- M-Sora d.d., Industrijska ul. 13, SI-4226 Žiri, Slovenia
| | - Jernej Starman
- M-Sora d.d., Industrijska ul. 13, SI-4226 Žiri, Slovenia
| | - Aleš Ugovšek
- M-Sora d.d., Industrijska ul. 13, SI-4226 Žiri, Slovenia
| | - Urška Lavrenčič Štangar
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
- University of Nova Gorica, Vipavska 13, SI-5000 Nova Gorica, Slovenia
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Matos J, Llano B, Montaña R, Poon PS, Hidalgo MC. Design of Ag/ and Pt/TiO 2-SiO 2 nanomaterials for the photocatalytic degradation of phenol under solar irradiation. Environ Sci Pollut Res Int 2018; 25:18894-18913. [PMID: 29717427 DOI: 10.1007/s11356-018-2102-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
The design of hybrid mesoporous TiO2-SiO2 (TS1) materials decorated with Ag and Pt nanoparticles was performed. The photocatalytic degradation of phenol under artificial solar irradiation was studied and the activity and selectivity of the intermediate products were verified. TiO2-SiO2 was prepared by sol-gel method while Ag- and Pt-based photocatalysts (TS1-Ag and TS1-Pt) were prepared by photodeposition of the noble metals on TS1. Two series of photocatalysts were prepared varying Ag and Pt contents (0.5 and 1.0 wt%). An increase in the photocatalytic activity up to two and five times higher than TS1 was found on TS1-Ag-1.0 and TS1-Pt-1.0, respectively. Changes in the intermediate products were detected on Ag- and Pt-based photocatalysts with an increase in the catechol formation up to 3.3 and 6.6 times higher than that observed on TS1, respectively. A two-parallel reaction mechanism for the hydroquinone and catechol formation is proposed. A linear correlation between the photocatalytic activity and the surface concentration of noble metals was found indicating that the electron affinity of noble metals is the driven force for both the increase in the photoactivity and for the remarkable changes in the selectivity of products.
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Affiliation(s)
- Juan Matos
- Hybrid and Carbon Materials Group, Bioenergy Department, Technological Development Unit (UDT), University of Concepcion, Av. Cordillera, 2634, Parque Industrial Coronel, Coronel, Bio Bio, Chile.
| | - Biviana Llano
- Grupo Procesos Químicos Industriales, Facultad de Ingeniería, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
| | - Ricmary Montaña
- Hybrid and Carbon Materials Group, Bioenergy Department, Technological Development Unit (UDT), University of Concepcion, Av. Cordillera, 2634, Parque Industrial Coronel, Coronel, Bio Bio, Chile
| | - Po S Poon
- Hybrid and Carbon Materials Group, Bioenergy Department, Technological Development Unit (UDT), University of Concepcion, Av. Cordillera, 2634, Parque Industrial Coronel, Coronel, Bio Bio, Chile
| | - Maria C Hidalgo
- Instituto de Ciencia de Materiales de Sevilla (ICMS), Centro Mixto CSIC-Universidad de Sevilla, C/Américo Vespucio 49, 41092, Sevilla, Spain
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Chinthaparthi RR, Bhatnagar I, Gangireddy CSR, Syama SC, Cirandur SR. Green synthesis of α-aminophosphonate derivatives on a solid supported TiO2 -SiO2 catalyst and their anticancer activity. Arch Pharm (Weinheim) 2013; 346:667-76. [PMID: 23959690 DOI: 10.1002/ardp.201300214] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 06/27/2013] [Accepted: 06/28/2013] [Indexed: 11/12/2022]
Abstract
Syntheses of a new series of biologically potent α-aminophosphonates were accomplished by one-pot Kabachnik-Fields reaction using TiO2-SiO2 as solid supported catalyst under microwave irradiation conditions. The chemical structures of all the newly synthesized compounds were confirmed by analytical and spectral (IR, 1H, 13C, 31P NMR, and mass) data. Their anticancer nature was evaluated by screening the in vitro activity on two human cancer cell lines, HeLa and SK-BR-3. Compounds 4i and 4o showed the best activity on these cancer cells even though the majority of the compounds, and particularly 4l and 4p, have good cytotoxic activity against them.
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