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Jin Y, Wang J, Gao X, Ren F, Chen Z, Sun Z, Ren P. Spent Coffee Grounds Derived Carbon Loading C, N Doped TiO 2 for Photocatalytic Degradation of Organic Dyes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5137. [PMID: 37512411 PMCID: PMC10385829 DOI: 10.3390/ma16145137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023]
Abstract
Titanium dioxide (TiO2) is an ideal photocatalyst candidate due to its high activity, low toxicity and cost, and high chemical stability. However, its practical application in photocatalysis is seriously hindered by the wide band gap energy of TiO2 and the prone recombination of electron-hole pairs. In this study, C, N doped TiO2 were supported on spent coffee grounds-derived carbon (ACG) via in situ formation, which was denoted as C, N-TiO2@ACG. The obtained C, N-TiO2@ACG exhibits increased light absorption efficiency with the band gap energy decreasing from 3.31 eV of TiO2 to 2.34 eV, a higher specific surface area of 145.8 m2/g, and reduced recombination rates attributed to the synergistic effect of a spent coffee grounds-derived carbon substrate and C, N doping. Consequently, the optimal 1:1 C, N-TiO2@ACG delivers considerable photocatalytic activity with degradation efficiencies for methylene blue (MB) reaching 96.9% within 45 min, as well as a high reaction rate of 0.06348 min-1, approximately 4.66 times that of TiO2 (0.01361 min-1). Furthermore, it also demonstrated greatly enhanced photocatalytic efficiency towards methyl orange (MO) in the presence of MB compared with a single MO solution. This work provides a feasible and universal strategy of synchronous introducing nonmetal doping and biomass-derived carbon substrates to promote the photocatalytic performance of TiO2 for the degradation of organic dyes.
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Affiliation(s)
- Yanling Jin
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
- School of Materials Science and Engineering, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Jiayi Wang
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Xin Gao
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Fang Ren
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
- School of Materials Science and Engineering, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Zhengyan Chen
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
- School of Materials Science and Engineering, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Zhenfeng Sun
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Penggang Ren
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
- School of Materials Science and Engineering, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
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Kalarikkandy AV, Sree N, Ravichandran S, Dheenadayalan G. Copolymer-MnO 2 nanocomposites for the adsorptive removal of organic pollutants from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:71454-71463. [PMID: 35871200 DOI: 10.1007/s11356-022-22137-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/16/2022] [Indexed: 06/14/2023]
Abstract
The copolymer beads prepared by suspension polymerisation were decorated with MnO2 nanoparticles and successfully implemented for the efficient removal of toxic organic contaminants from water. Copolymer-MnO2 nanocomposite was further analysed using XRD, SEM and optical microscope. The SEM images showed the surface characteristics of MnO2 nanoparticles on copolymer beads. The efficiency of the copolymer-MnO2 nanocomposite for the removal of model pollutant methylene blue and rhodamine B is then analysed by changing the concentration of pollutant. The results obtained exhibited 18.45 mg/g for methylene blue adsorption and 3.125 mg/g for rhodamine B. The adsorption equilibrium results were fitted to Langmuir adsorption isotherm for both methylene blue and rhodamine B adsorption. The desorption studies were performed for five consecutive cycles, and material was showing good regenerating capacity towards both organic pollutants. The obtained results show that copolymer-MnO2 nanocomposite is an efficient material for the removal of organic contaminants from wastewater.
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Affiliation(s)
- Arun Viswan Kalarikkandy
- Department of Sciences, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore, India
| | - Nirmal Sree
- Department of Sciences, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore, India
| | - Sanjay Ravichandran
- Department of Sciences, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore, India
| | - Gangadharan Dheenadayalan
- Department of Sciences, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore, India.
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Skiba M, Vorobyova V. Evaluation of antibacterial, antioxidant, photocatalytic activities of silver-decorated TiO2 comparison green and classic capping agent. APPLIED NANOSCIENCE 2023. [DOI: 10.1007/s13204-022-02748-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Alvarez-Amparán MA, Martínez-Cornejo V, Cedeño-Caero L, Hernandez-Hernandez KA, Cadena-Nava RD, Alonso-Núñez G, Moyado SF. Characterization and photocatalytic activity of TiO2 nanoparticles on cotton fabrics, for antibacterial masks. APPLIED NANOSCIENCE 2022; 12:4019-4032. [PMID: 36124253 PMCID: PMC9476449 DOI: 10.1007/s13204-022-02634-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022]
Abstract
The in-situ impregnation of two commercial cotton fabrics (lab coat and Indiolino) with TiO2 nanoparticles (TiO2-NPs) was carried out. For this, two commercial cotton fabrics were dipped in titanium isopropoxide, titanium butoxide and titanium tetrachloride solutions to the TiO2-NPs formation and in-situ TiO2-NPs impregnation on the cotton fabric surface by the sonochemical, hydrothermal and solvothermal methods, respectively. The impregnated fabrics were characterized by ATR-FTIR, SEM–EDS, Raman, UV–Vis, DRS and tension tests. The results showed the successful formation and impregnation of TiO2-NPs on both cotton fabrics. The leaching of TiO2-NPs from cotton fabrics was negligible after several washing cycles. The self-cleaning properties and antibacterial activity of TiO2-NPs functionalized cotton fabrics were assessed by photocatalytic and antibacterial tests. The photocatalytic activity was determined by the degradation of methylene blue dye under UV and solar irradiation. The materials showed good photoactivity, since MB was degraded up to 99% under solar and UV irradiations in 60 min. The bactericidal capacity of the TiO2-NPs on fabrics, evaluated in-situ by SEM, showed that Indiolino presented the best antibacterial properties against Escherichia coli and Bacillus pumilus.
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Skiba M, Vorobyova V. Green synthesis and characterization of silver nanoparticles using Prunus persica L. (peach pomace) with natural deep eutectic solvent and plasma-liquid process. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02274-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Current Developments in the Effective Removal of Environmental Pollutants through Photocatalytic Degradation Using Nanomaterials. Catalysts 2022. [DOI: 10.3390/catal12050544] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Photocatalysis plays a prominent role in the protection of the environment from recalcitrant pollutants by reducing hazardous wastes. Among the different methods of choice, photocatalysis mediated through nanomaterials is the most widely used and economical method for removing pollutants from wastewater. Recently, worldwide researchers focused their research on eco-friendly and sustainable environmental aspects. Wastewater contamination is one of the major threats coming from industrial processes, compared to other environmental issues. Much research is concerned with the advanced development of technology for treating wastewater discharged from various industries. Water treatment using photocatalysis is prominent because of its degradation capacity to convert pollutants into non-toxic biodegradable products. Photocatalysts are cheap, and are now emerging slowly in the research field. This review paper elaborates in detail on the metal oxides used as a nano photocatalysts in the various type of pollutant degradation. The progress of research into metal oxide nanoparticles, and their application as photocatalysts in organic pollutant degradation, were highlighted. As a final consideration, the challenges and future perspectives of photocatalysts were analyzed. The application of nano-based materials can be a new horizon in the use of photocatalysts in the near future for organic pollutant degradation.
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Skiba M, Vorobyova V, Pasenko O. Surface modification of titanium dioxide with silver nanoparticles for application in photocatalysis. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-021-01739-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Vorobyova V, Vasyliev G, Uschapovskiy D, Lyudmyla K, Skiba M. Green synthesis, characterization of silver nanoparticals for biomedical application and environmental remediation. J Microbiol Methods 2021; 193:106384. [PMID: 34826520 DOI: 10.1016/j.mimet.2021.106384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 11/19/2021] [Accepted: 11/19/2021] [Indexed: 11/24/2022]
Abstract
Production of silver nanoparticles (Ag-NPs) to increase photocatalytic activity of commercial TiO2 (P25) and antibacterial activity of surgical sutures was studied. А new method of "green" synthesis of Ag-NPs from aqueous extract of grape skin (oxidation product), which is pre-processed by oxygen and ultrasound is reported. Also, a new method of electrochemical modification of surgical sutures was used. Characterization of Ag-NPs was carried out using energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM) and UV-visible spectroscopy. Zeta-potential of obtained colloidal solutions indicated the moderate stability of synthesized nanoparticles. The X-ray powder diffraction (XRD) analysis confirmed the crystallographic structure of the synthesized Ag-NPs. The component profile of grape skin extract has been analyzed using HPLC coupled to diode-array detection and tandem mass spectrometry (HPLC-DAD-MS/MS). In this study absorbable sutures were functionalized with biosynthesized AgNPs through an electrochemical and chemical deposition. Morphological analysis of Ag-NPs-coated surgical sutures was performed by SEM and Energy Dispersive X-Ray Spectroscopy (SEM-EDX) in order to evaluate the presence and distribution of silver deposited on the sutures. The sutures demonstrated bacteriostatic and antifungal effects on Gram-positive (Bacillus subtilis), Gram-negative (Escherichia coli) and Candida albicans wound pathogens. The study revealed that electrochemical deposition of Ag-NPs on nylon surgical sutures did not alter the mechanical properties of the sutures but conferred antibacterial properties. The modified TiO2 powders with biosynthesized Ag-NPs were characterized by XRD pattern, SEM, their photocatalytic properties, and their antibacterial activities were studied. The results of the antibacterial activity studies showed that TiO2 modified using green approach possessed higher antibacterial activity against Gram-negative bacteria in comparison with TiO2 modified by the impregnation method.
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Affiliation(s)
- Victoria Vorobyova
- Department of Chemical Technology, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv 03056, Ukraine.
| | - Georgii Vasyliev
- Department of Chemical Technology, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv 03056, Ukraine.
| | - Dmitriy Uschapovskiy
- Department of Chemical Technology, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv 03056, Ukraine
| | - Khrokalo Lyudmyla
- Department of Chemical Technology, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv 03056, Ukraine
| | - Margarita Skiba
- Department of Inorganic Materials Technology and Ecology, Ukrainian State University of Chemical Technology, Dnipro 49005, Ukraine
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