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Bhosale SR, Bhosale RR, Dhavale RP, Kolekar GB, Shimpale VB, Anbhule PV. Nanomaterials Based Multifunctional Bioactivities of V 2O 5 and Mesoporous Carbon@V 2O 5 Composite: Preparation and Characterization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6471-6483. [PMID: 38466805 DOI: 10.1021/acs.langmuir.4c00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Nanocarriers have attracted considerable interest due to their prospective applications in the delivery of anticancer medications and their distinct bioactivities. Biogenic nanostructures can be effective nanocarriers for delivering drugs as a consequence of sustainable and biodegradable biomass-derived nanostructures that perform specific functions. In this case, a vanadium oxide (V2O5) and mesoporous carbon@V2O5 (C@V) composite was developed as a possible drug delivery system, and its bioactivities, including antioxidant, antibacterial, and anticancer, were investigated. Doxorubicin (DOX), an anticancer drug, was introduced to the nanoparticles, and the loading and release investigation was conducted. Strong interfacial interactions between mesoporous carbon (MC) and V2O5 nanostructures have been found to improve performance in drug loading and release studies and bioactivities. After incubation, the potent anticancer effectiveness was seen based on C@V nanocomposite. This sample was also utilized to research potential biomedical uses as an antioxidant, antibacterial, and anticancer. The most effective antioxidant, the C@V sample (61.2%), exhibited a higher antioxidant activity than the V-2 sample (44.61%). The C@V sample ultimately attained a high DOX loading efficacy of 88%, in comparison to a pure V2O5 sample (V-2) loading efficacy of 80%. Due to the combination of mesoporous carbon and V2O5, which increases specific surface area and surface sites of action as well as the morphology, it proved that the mesoporous carbon@V2O5 composite (C@V) sample demonstrated greater efficacy.
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Affiliation(s)
- Sneha R Bhosale
- Medicinal Chemistry Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra, India
| | - Rakhee R Bhosale
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra, India
| | - Rushikesh P Dhavale
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, South Korea
| | - Govind B Kolekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra, India
| | - Vinod B Shimpale
- Department of Botany, The New College Kolhapur, Kolhapur 416012, Maharashtra, India
| | - Prashant V Anbhule
- Medicinal Chemistry Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra, India
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Ali N, Kenawy ER, Wadoud AA, Elhadary MI. Wearable Electrospun Piezoelectric Mats Based on a PVDF Nanofiber-ZnO@ZnS Core-Shell Nanoparticles Composite for Power Generation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2833. [PMID: 37947679 PMCID: PMC10648488 DOI: 10.3390/nano13212833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 10/26/2022] [Indexed: 11/12/2023]
Abstract
This work adopted a strategy to use new functional high-performance piezoelectric materials for sustainable energy production in wearable self-powered electrical devices. An innovative modification in electrospinning was used to produce highly aligned nanofibers. In the nanogenerator, the flexible membrane constituents were tunefully combined. The novel composite nanofibers were made of Poly (vinylidene fluoride) PVDF, loaded with ZnO@ZnS core-shell nanoparticles to achieve a non-brittle performance of the hetero nanoparticles and piezoelectric polymer. A nanofiber mat was inserted between two thermoplastic sheets with conductive electrodes for application in wearable electronic devices. Complete spectroscopic analyses were performed to characterize the nanofiber's material composition. It is shown that the addition of 10 wt % ZnO@ZnS core-shell nanoparticles significantly improved the piezoelectric properties of the nanofibers and simultaneously kept them flexible due to the exceedingly resilient nature of the composite. The superior performance of the piezoelectric parameter of the nanofibrous mats was due to the crystallinity (polar β phase) and surface topography of the mat. The conversion sensitivity of the PVDF device recorded almost 0.091 V/N·mm3, while that of the PVDF-10 wt % ZnO@ZnS composite mat recorded a sensitivity of 0.153 V/N·mm3, which is higher than many flexible nano-generators. These nanogenerators provide a simple, efficient, and cost-effective solution to microelectronic wearable devices.
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Affiliation(s)
- Nehal Ali
- Department of Engineering Physics and Mathematics, Faculty of Engineering, Tanta University, Tanta 31527, Egypt
| | - El-Refaie Kenawy
- Polymer Research Group, Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - A. A. Wadoud
- Atomic Reactors Department, Egyptian Atomic Energy Authority, Inshas, Cairo 13759, Egypt
| | - M. I. Elhadary
- Department of Mechanical Power Engineering, Faculty of Engineering, Tanta University, Tanta 31527, Egypt
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Chen Y, Xue Q, Luo W, Sun Y, Li M, Hang T. ZnO/ZnS core-shell quantum dots with enhanced ultraviolet fluorescence and low cytotoxicity for cell imaging. NANOTECHNOLOGY 2023; 34:505704. [PMID: 37714140 DOI: 10.1088/1361-6528/acfa06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 09/15/2023] [Indexed: 09/17/2023]
Abstract
Zinc oxide quantum dots (ZnO QDs) have gained wide attention due to their wide excitation spectrum, large Stokes shift, adjustable photoluminescence (PL) spectrum, and excellent biocompatibility. However, low fluorescence intensity and poor stability restrict their further applications. In this work, zinc sulfide (ZnS) as a surface modifier, ZnO/ZnS core-shell QDs with type-I core-shell structure and particle size of 5 nm were prepared via sol-gel method. Transmission electron microscope characterization demonstrates the core-shell structure and spherical morphology of the as-synthesized ZnO/ZnS QDs. The PL spectra show that ultraviolet fluorescence has been greatly enhanced. The maximum fluorescence intensity of ZnO/ZnS core-shell QDs increases by 5288.6% compared with that of bare ZnO QDs. The PL quantum yield increases from 9.53% to 30.95%. After being stored for three weeks, the fluorescence performance can be well retained. Furthermore, the cytotoxicity tests confirm the excellent biocompatibility of ZnO/ZnS core-shell QDs, demonstrating they are good candidates for cell imaging.
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Affiliation(s)
- Yuhang Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Qi Xue
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Weiguo Luo
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Yu Sun
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Ming Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Tao Hang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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Bazrafshan E, Mohammadi L, Zarei AA, Mosafer J, Zafar MN, Dargahi A. Optimization of the photocatalytic degradation of phenol using superparamagnetic iron oxide (Fe 3O 4) nanoparticles in aqueous solutions. RSC Adv 2023; 13:25408-25424. [PMID: 37636498 PMCID: PMC10448231 DOI: 10.1039/d3ra03612j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/10/2023] [Indexed: 08/29/2023] Open
Abstract
The present work was carried out to remove phenol from aqueous medium using a photocatalytic process with superparamagnetic iron oxide nanoparticles (Fe3O4) called SPIONs. The photocatalytic process was optimized using a central composite design based on the response surface methodology. The effects of pH (3-7), UV/SPION nanoparticles ratio (1-3), contact time (30-90 minutes), and initial phenol concentration (20-80 mg L-1) on the photocatalytic process were investigated. The interaction of the process parameters and their optimal conditions were determined using CCD. The statistical data were analyzed using a one-way analysis of variance. We developed a quadratic model using a central composite design to indicate the photocatalyst impact on the decomposition of phenol. There was a close similarity between the empirical values gained for the phenol content and the predicted response values. Considering the design, optimum values of pH, phenol concentration, UV/SPION ratio, and contact time were determined to be 3, 80 mg L-1, 3, and 60 min, respectively; 94.9% of phenol was eliminated under the mentioned conditions. Since high values were obtained for the adjusted R2 (0.9786) and determination coefficient (R2 = 0.9875), the response surface methodology can describe the phenol removal by the use of the photocatalytic process. According to the one-way analysis of variance results, the quadratic model obtained by RSM is statistically significant for removing phenol. The recyclability of 92% after four consecutive cycles indicates the excellent stability of the photocatalyst for practical applications. Our research findings indicate that it is possible to employ response surface methodology as a helpful tool to optimize and modify process parameters for maximizing phenol removal from aqueous solutions and photocatalytic processes using SPIONs.
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Affiliation(s)
- Edris Bazrafshan
- Health Sciences Research Center, Torbat Heydariyeh University of Medical Sciences Torbat Heydariyeh 33787 95196 Iran
- Department of Environmental Health Engineering, Torbat Heydariyeh University of Medical Sciences Torbat Heydariyeh 33787 95196 Iran
| | - Leili Mohammadi
- Infectious Diseases and Tropical Medicine Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences Zahedan 98167-43463 Iran
| | - Amin Allah Zarei
- Health Sciences Research Center, Torbat Heydariyeh University of Medical Sciences Torbat Heydariyeh 33787 95196 Iran
- Department of Environmental Health Engineering, Torbat Heydariyeh University of Medical Sciences Torbat Heydariyeh 33787 95196 Iran
| | - Jafar Mosafer
- Department of Environmental Health Engineering, Torbat Heydariyeh University of Medical Sciences Torbat Heydariyeh 33787 95196 Iran
- Research Center of Advanced Technologies in Medicine, Torbat Heydariyeh University of Medical Sciences Torbat Heydariyeh Iran
| | | | - Abdollah Dargahi
- Department of Environmental Health Engineering, Khalkhal University of Medical Sciences Khalkhal Iran
- Social Determinants of Health Research Center, Ardabil University of Medical Sciences Ardabil Iran
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Khodamorady M, Bahrami K. Fe 3O 4@BNPs@ZnO-ZnS as a novel, reusable and efficient photocatalyst for dye removal from synthetic and textile wastewaters. Heliyon 2023; 9:e16397. [PMID: 37274711 PMCID: PMC10238700 DOI: 10.1016/j.heliyon.2023.e16397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 04/07/2023] [Accepted: 05/15/2023] [Indexed: 06/06/2023] Open
Abstract
In this study, new magnetic nanocomposites with different molar ratios of zinc oxide-zinc sulfide were synthesized together with photocatalysts MNPs@BNPs@ZnO and MNPs@ BNPs@ ZnS. The photocatalytic behavior of these hybrid nanocomposites under visible light and ultraviolet light was investigated to remove methylene blue (MB), methyl orange (MO) dyes, real textile and carton effluents. After studies, the best active photocatalyst in both visible light and ultraviolet light is MNPs@BNPs@ZnO-ZnS (ZnO/ZnS: 0.75:0.25), which displayed the best performance in the ultraviolet region. According to the TEM, the average particle size for MNPs@BNPs@ZnO-ZnS (ZnO/ZnS: 0.75:0.25) is between 10 and 30 nm. Zeta potential (DLS) showed that the charge on the photocatalyst surface is negative at most pHs. PL analysis confirmed that the amount of hole-electron recombination in the optimal photocatalyst is less than MNPs@BNPs@ZnO and MNPs@BNPs@ZnS. Also, based on kinetic studies, the rate constant for removing azo dyes such as MO and MB was 0.0186 and 0.0171 min-1, respectively. It is worth noting that in addition to the novelty of the synthesized photocatalysts, the UV and visible lamps used in this research are inexpensive, durable, and highly efficient.
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Affiliation(s)
- Minoo Khodamorady
- Department of Organic Chemistry, Faculty of Chemistry, Razi University, Kermanshah 67144‐14971, Iran
| | - Kiumars Bahrami
- Department of Organic Chemistry, Faculty of Chemistry, Razi University, Kermanshah 67144‐14971, Iran
- Nanoscience and Nanotechnology Research Center (NNRC), Razi University, Kermanshah 67144‐14971, Iran
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Wang N, Li ZJ, Gao H, Li R, Xu XF, Li T, Long YZ, Zhang HD. Enhanced Visible-Photocatalytic Activities in Strong Acids and Strong Alkalis of Flexible Iron-SrTiO 3 Nanofibrous Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6885-6894. [PMID: 37129447 DOI: 10.1021/acs.langmuir.3c00506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Traditional SrTiO3 (STO) materials have high brittleness and poor deformation resistance. In this work, macroscopically flexible iron-doped SrTiO3 (SFTO) nanofibrous membranes were prepared by electrospinning and calcination, which can be easily isolated and can maintain integrity to recycle as photocatalysts. Moreover, the SFTO nanofibrous membranes showed enhanced photocatalytic performance under strong acids (pH = 2) and strong alkalis (pH = 12). The SFTO nanofibrous membranes increased the catalytic rate of Congo red (CR) dye by about 10 times in visible light. The mechanism of photocatalytic activity enhancement was discussed by the combined effects of hydroxyl radicals and superoxide radicals. The successful preparation of SFTO nanofibrous membranes has offered a simple and economical approach to photocatalysis as well as environmental remediation.
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Affiliation(s)
- Nan Wang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Zhao-Jian Li
- Department of Neurosurgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266003, China
| | - Hong Gao
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Ru Li
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Xiao-Feng Xu
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Tong Li
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Hong-Di Zhang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
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7
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Kumari P, Pande S, Fageria P. Facile synthesis of ZnO/ZnS hollow nanorods via Kirkendall effect with enhanced photocatalytic degradation of methylene blue. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:61927-61944. [PMID: 36934181 DOI: 10.1007/s11356-023-26192-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/24/2023] [Indexed: 05/10/2023]
Abstract
Because of the growing concerns about environmental issues, the search of proficient semiconductor catalysts for pollutants degradation from contaminated water is one of the interesting areas of research. Due to the larger surface area, hollow nanomaterials with hollow interior and outer thickness illustrate a class of significant nanostructured materials. The enhanced surface area provides remarkable applications of the hollow nanomaterials in catalysis. In Kirkendall effect, pores are formed owing to the diverse diffusion rates of two nanomaterials in a diffusion couple. Here, we have introduced the facile hydrothermal synthesis of hollow nanorods of ZnO/ZnS via Kirkendall effect using ZnO nanorods (NRs). The morphologies, optical properties, compositions, and crystal structures of the as synthesized materials are systematically studied using UV-vis, PXRD, FESEM, TEM, EDS, XPS, etc. The process of synthesis and growth mechanism of hollow NRs is suggested based on the Kirkendall effect. A hollow nanomaterial, envisaged being highly efficient for molecule adsorption on its surface, the as synthesized materials were used for the photocatalytic degradation of methylene blue (MB) dye. MB degradation efficiency of 96% within 60 min was performed over ZnO/ZnS hollow NRs, which was 2.6-fold greater than that of ZnO. The rate constant of ZnO/ZnS heterostructure was 0.045 min-1, which was 5.5 times larger than that of bare ZnO. We have concluded our work in the directions towards the synthesis of various semiconductor hollow nanostructures for the varied catalytic reactions.
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Affiliation(s)
- Poonam Kumari
- Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Surojit Pande
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Rajasthan, 333031, India
| | - Pragati Fageria
- Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan, 302004, India.
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Magneto recyclable, green fabricated Fe3O4 nanorods on photo responsive of textile dye degradation and identification products by LC-MS. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Aleksić K, Stojković Simatović I, Stanković A, Veselinović L, Stojadinović S, Rac V, Radmilović N, Rajić V, Škapin SD, Mančić L, Marković S. Enhancement of ZnO@RuO 2 bifunctional photo-electro catalytic activity toward water splitting. Front Chem 2023; 11:1173910. [PMID: 37179781 PMCID: PMC10174304 DOI: 10.3389/fchem.2023.1173910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 04/14/2023] [Indexed: 05/15/2023] Open
Abstract
Catalytic materials are the greatest challenge for the commercial application of water electrolysis (WEs) and fuel cells (FCs) as clean energy technologies. There is a need to find an alternative to expensive and unavailable platinum group metal (PGM) catalysts. This study aimed to reduce the cost of PGM materials by replacing Ru with RuO2 and lowering the amount of RuO2 by adding abundant and multifunctional ZnO. A ZnO@RuO2 composite in a 10:1 molar ratio was synthesized by microwave processing of a precipitate as a green, low-cost, and fast method, and then annealed at 300°C and 600°C to improve the catalytic properties. The physicochemical properties of the ZnO@RuO2 composites were investigated by X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. The electrochemical activity of the samples was investigated by linear sweep voltammetry in acidic and alkaline electrolytes. We observed good bifunctional catalytic activity of the ZnO@RuO2 composites toward HER and OER in both electrolytes. The improved bifunctional catalytic activity of the ZnO@RuO2 composite by annealing was discussed and attributed to the reduced number of bulk oxygen vacancies and the increased number of established heterojunctions.
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Affiliation(s)
| | - Ivana Stojković Simatović
- Faculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia
- *Correspondence: Ivana Stojković Simatović, ; Smilja Marković,
| | - Ana Stanković
- Institute of Technical Sciences of SASA, Belgrade, Serbia
| | | | | | - Vladislav Rac
- Faculty of Agriculture, University of Belgrade, Zemun, Serbia
| | - Nadežda Radmilović
- Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Vladimir Rajić
- Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | | | - Lidija Mančić
- Institute of Technical Sciences of SASA, Belgrade, Serbia
| | - Smilja Marković
- Institute of Technical Sciences of SASA, Belgrade, Serbia
- *Correspondence: Ivana Stojković Simatović, ; Smilja Marković,
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Zagorac J, Zagorac D, Šrot V, Ranđelović M, Pejić M, van Aken PA, Matović B, Schön JC. Synthesis, Characterization, and Electronic Properties of ZnO/ZnS Core/Shell Nanostructures Investigated Using a Multidisciplinary Approach. MATERIALS (BASEL, SWITZERLAND) 2022; 16:326. [PMID: 36614664 PMCID: PMC9822113 DOI: 10.3390/ma16010326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
ZnO/ZnS core/shell nanostructures, which are studied for diverse possible applications, ranging from semiconductors, photovoltaics, and light-emitting diodes (LED), to solar cells, infrared detectors, and thermoelectrics, were synthesized and characterized by XRD, HR-(S)TEM, and analytical TEM (EDX and EELS). Moreover, band-gap measurements of the ZnO/ZnS core/shell nanostructures have been performed using UV/Vis DRS. The experimental results were combined with theoretical modeling of ZnO/ZnS (hetero)structures and band structure calculations for ZnO/ZnS systems, yielding more insights into the properties of the nanoparticles. The ab initio calculations were performed using hybrid PBE0 and HSE06 functionals. The synthesized and characterized ZnO/ZnS core/shell materials show a unique three-phase composition, where the ZnO phase is dominant in the core region and, interestingly, the auxiliary ZnS compound occurs in two phases as wurtzite and sphalerite in the shell region. Moreover, theoretical ab initio calculations show advanced semiconducting properties and possible band-gap tuning in such ZnO/ZnS structures.
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Affiliation(s)
- Jelena Zagorac
- Materials Science Laboratory, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
- Centre of Excellence “Cextreme Lab”, Materials Science Laboratory, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Dejan Zagorac
- Materials Science Laboratory, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
- Centre of Excellence “Cextreme Lab”, Materials Science Laboratory, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Vesna Šrot
- Max Planck Institute for Solid State Research, Stuttgart Center for Electron Microscopy, 70569 Stuttgart, Germany
| | - Marjan Ranđelović
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Niš, 18000 Niš, Serbia
| | - Milan Pejić
- Materials Science Laboratory, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
- Centre of Excellence “Cextreme Lab”, Materials Science Laboratory, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Peter A. van Aken
- Max Planck Institute for Solid State Research, Stuttgart Center for Electron Microscopy, 70569 Stuttgart, Germany
| | - Branko Matović
- Materials Science Laboratory, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
- Centre of Excellence “Cextreme Lab”, Materials Science Laboratory, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - J. Christian Schön
- Nanoscale Science Department, Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
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Jeon G, Choi H, Park DJ, Nguyen NT, Kim YH, Min J. Melanin Treatment Effect of Vacuoles-Zinc Oxide Nanoparticles Combined with Ascorbic Acid. Mol Biotechnol 2022:10.1007/s12033-022-00608-8. [PMID: 36445610 PMCID: PMC9707414 DOI: 10.1007/s12033-022-00608-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/07/2022] [Indexed: 11/30/2022]
Abstract
Currently, ascorbic acid (AA) is widely used as a skin whitening material, but, AA, an unstable hydrophilic molecule, cannot penetrate the skin easily, due to the hydrophobic character of the stratum corneum. Therefore, we conjugated AA with hydrated zinc oxide-an inorganic matrix with positive surface charge, to improve the stability of AA. The metal-conjugated-ascorbic acid (ZnAA) was then combined with yeast vacuole through the vacuolar membrane proteins that relate to metal transportation to create an enhanced vacuole that contained ZnAA. The characteristics of vacuole with ZnAA (ZnAA_Vac) were next examined by various tests that included X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Field emission scanning electron microscopy (FE-SEM), and energy-dispersive X-ray (EDX) analysis. Furthermore, the ability of ZnAA_Vac to degrade melanin was confirmed in both melanoma cell line B16F10, and the artificial human skin MelanoDerm. The results showed that ZnAA_Vac possessed a higher depigmenting effect than the wild-type vacuole or ascorbic acid by reducing 75% of melanin color. Interestingly, ZnAA_Vac was found to be harmless, and did not cause any cytotoxicity to the cells. Overall, ZnAA_Vac is expected to provide a robust, harmless, and effective whitening agent for the skin.
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Affiliation(s)
- Gyeongchan Jeon
- Graduate School of Semiconductor and Chemical Engineering, Jeonbuk National University, 567 Baekje-Daero, Deokjin-Gu, Jeonju-Si, Jeollabuk-do 54896 Republic of Korea
| | - Hyojin Choi
- Graduate School of Semiconductor and Chemical Engineering, Jeonbuk National University, 567 Baekje-Daero, Deokjin-Gu, Jeonju-Si, Jeollabuk-do 54896 Republic of Korea
| | - Dong-Jun Park
- Department of Surgery, University of California, San Diego, USA
| | - Ngoc-Tu Nguyen
- Center for Ecology and Environmental Toxicology (CEET), Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju, Chungbuk-Do 28644 South Korea
| | - Yang-Hoon Kim
- Center for Ecology and Environmental Toxicology (CEET), Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju, Chungbuk-Do 28644 South Korea
- School of Biological Science, Chungbuk National University, Chungdae-Ro 1, Seowon-Gu, Cheongju, Chungbuk-do 28644 Republic of Korea
| | - Jiho Min
- Graduate School of Semiconductor and Chemical Engineering, Jeonbuk National University, 567 Baekje-Daero, Deokjin-Gu, Jeonju-Si, Jeollabuk-do 54896 Republic of Korea
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Ma Y, Li J, Cai J, Zhong L, Lang Y, Ma Q. Z-scheme g-C3N4/ZnS heterojunction photocatalyst: One-pot synthesis, interfacial structure regulation, and improved photocatalysis activity for bisphenol A. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Magnetic separation of green synthesized Fe3O4 nanoparticles on photocatalytic activity of methyl orange dye removal. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zagorac D, Zagorac J, Pejić M, Matović B, Schön JC. Band Gap Engineering of Newly Discovered ZnO/ZnS Polytypic Nanomaterials. NANOMATERIALS 2022; 12:nano12091595. [PMID: 35564304 PMCID: PMC9101784 DOI: 10.3390/nano12091595] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/30/2022] [Accepted: 05/04/2022] [Indexed: 02/01/2023]
Abstract
We report on a new class of ZnO/ZnS nanomaterials based on the wurtzite/sphalerite architecture with improved electronic properties. Semiconducting properties of pristine ZnO and ZnS compounds and mixed ZnO1−xSx nanomaterials have been investigated using ab initio methods. In particular, we present the results of our theoretical investigation on the electronic structure of the ZnO1−xSx (x = 0.20, 0.25, 0.33, 0.50, 0.60, 0.66, and 0.75) nanocrystalline polytypes (2H, 3C, 4H, 5H, 6H, 8H, 9R, 12R, and 15R) calculated using hybrid PBE0 and HSE06 functionals. The main observations are the possibility of alternative polytypic nanomaterials, the effects of structural features of such polytypic nanostructures on semiconducting properties of ZnO/ZnS nanomaterials, the ability to tune the band gap as a function of sulfur content, as well as the influence of the location of sulfur layers in the structure that can dramatically affect electronic properties. Our study opens new fields of ZnO/ZnS band gap engineering on a multi-scale level with possible applications in photovoltaics, light-emitting diodes, laser diodes, heterojunction solar cells, infrared detectors, thermoelectrics, or/and nanostructured ceramics.
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Affiliation(s)
- Dejan Zagorac
- Materials Science Laboratory, Institute of Nuclear Sciences “Vinča”, University of Belgrade, 11000 Belgrade, Serbia; (J.Z.); (M.P.); (B.M.)
- Center for Synthesis, Processing and Characterization of Materials for Application in the Extreme Conditions “Cextreme Lab”, Institute of Nuclear Sciences, University of Belgrade, 11001 Belgrade, Serbia
- Correspondence: (D.Z.); (J.C.S.)
| | - Jelena Zagorac
- Materials Science Laboratory, Institute of Nuclear Sciences “Vinča”, University of Belgrade, 11000 Belgrade, Serbia; (J.Z.); (M.P.); (B.M.)
- Center for Synthesis, Processing and Characterization of Materials for Application in the Extreme Conditions “Cextreme Lab”, Institute of Nuclear Sciences, University of Belgrade, 11001 Belgrade, Serbia
| | - Milan Pejić
- Materials Science Laboratory, Institute of Nuclear Sciences “Vinča”, University of Belgrade, 11000 Belgrade, Serbia; (J.Z.); (M.P.); (B.M.)
- Center for Synthesis, Processing and Characterization of Materials for Application in the Extreme Conditions “Cextreme Lab”, Institute of Nuclear Sciences, University of Belgrade, 11001 Belgrade, Serbia
| | - Branko Matović
- Materials Science Laboratory, Institute of Nuclear Sciences “Vinča”, University of Belgrade, 11000 Belgrade, Serbia; (J.Z.); (M.P.); (B.M.)
- Center for Synthesis, Processing and Characterization of Materials for Application in the Extreme Conditions “Cextreme Lab”, Institute of Nuclear Sciences, University of Belgrade, 11001 Belgrade, Serbia
| | - Johann Christian Schön
- Nanoscale Science Department, Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
- Correspondence: (D.Z.); (J.C.S.)
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Green synthesis of ZnO@ZnS core–shell nanoparticles for detection of lead and iron ions in aqueous solutions by colorimetric paper sensors. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-01840-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Dye degradation, antibacterial and in-silico analysis of Mg/cellulose-doped ZnO nanoparticles. Int J Biol Macromol 2021; 185:153-164. [PMID: 34157328 DOI: 10.1016/j.ijbiomac.2021.06.101] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 11/20/2022]
Abstract
Various concentrations of Mg into fixed amount of cellulose nanocrystals (CNC)-doped ZnO were synthesized using facile chemical precipitation. The aim of present study is to remove dye degradation of methylene blue (MB) and bactericidal behavior with synthesized product. Phase constitution, functional group analysis, optical behavior, elemental composition, morphology and microstructure were examined using XRD, FTIR, UV-Vis spectrophotometer, EDS and HR-TEM. Highly efficient photocatalytic performance was observed in basic medium (98%) relative to neutral (65%), and acidic (83%) was observed upon Mg and CNC co-doping. Significant bactericidal activity of doped ZnO nanoparticles depicted inhibition zones for G -ve and +ve bacteria ranging (2.20 - 4.25 mm) and (5.80-7.25 mm) for E. coli and (1.05 - 2.75 mm) and (2.80 - 4.75 mm) for S. aureus at low and high doses, respectively. Overall, doped nanostructures showed significant (P < 0.05) bactericidal efficacy against G +ve relative to G -ve. Furthermore, the molecular docking studies were employed to rationalize possible mechanism behind these in vitro bactericidal activities. In silico findings suggested CNC doped ZnO nanocomposites as possible inhibitors of β-lactamase (Binding score: -7.936 kcal/mol), DHFR (Binding score: -5.691 kcal/mol) and FabI (Binding score: -8.673 kcal/mol).
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17
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Surface photosensitization of ZnO by ZnS to enhance the photodegradation efficiency for organic pollutants. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04643-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
AbstractIt is challenging to develop a material which has low cost, high activity, good stability and recyclability under light exposure. Apart from these properties, the photocatalyst should also have good visible region absorbance and low electron-hole pair recombination rate. Keeping all this in view, we have designed a simple scalable synthesis of ZnO–ZnS heterostructures for the photocatalytic treatment of industrial waste (p-nitrophenol and methyl orange). The ZnO–ZnS heterostructures are synthesized via a solvent-free route by thermal annealing of solid-state mixture of ZnO and thiourea (a sulphur source) which results in ZnO–ZnS core shell kind of heterostructure formation. The interface formation between the ZnO–ZnS heterostructure favored the band-gap reduction in comparison to the bare ZnO and ZnS nanoparticles. Further, these ZnO–ZnS heterostructures were utilized as a photocatalyst for the degradation of toxic phenolic molecules (p-nitrophenol) and harmful organic dyes (methyl orange) present in the water under the light exposure (> 390 nm).
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Ikram M, Aslam S, Haider A, Naz S, Ul-Hamid A, Shahzadi A, Ikram M, Haider J, Ahmad SOA, Butt AR. Doping of Mg on ZnO Nanorods Demonstrated Improved Photocatalytic Degradation and Antimicrobial Potential with Molecular Docking Analysis. NANOSCALE RESEARCH LETTERS 2021; 16:78. [PMID: 33934207 PMCID: PMC8088420 DOI: 10.1186/s11671-021-03537-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/22/2021] [Indexed: 05/22/2023]
Abstract
Various concentrations of Mg-doped ZnO nanorods (NRs) were prepared using co-precipitation technique. The objective of this study was to improve the photocatalytic properties of ZnO. The effect of Mg doping on the structure, phase constitution, functional groups presence, optical properties, elemental composition, surface morphology and microstructure of ZnO was evaluated with XRD, FTIR, UV-Vis spectrophotometer, EDS, and HR-TEM, respectively. Optical absorption spectra obtained from the prepared samples showed evidence of blueshift upon doping. XRD results revealed hexagonal wurtzite phase of nanocomposite with a gradual decrease in crystallite size with Mg addition. PL spectroscopy showed trapping efficiency and migration of charge carriers with electron-hole recombination behavior, while HR-TEM estimated interlayer d-spacing. The presence of chemical bonding, vibration modes and functional groups at the interface of ZnO was revealed by FTIR and Raman spectra. In this study, photocatalytic, sonocatalytic and sonophotocatalytic performance of prepared NRs was systematically investigated by degrading a mixture of methylene blue and ciprofloxacin (MBCF). Experimental results suggested that improved degradation performance was shown by Mg-doped ZnO NRs. We believe that the product synthesized in this study will prove to be a beneficial and promising photocatalyst for wastewater treatment. Conclusively, Mg-doped ZnO exhibited substantial (p < 0.05) efficacy against gram-negative (G-ve) as compared to gram-positive (G+ve) bacteria. In silico molecular docking studies of Mg-doped ZnO NRs against DHFR (binding score: - 7.518 kcal/mol), DHPS (binding score: - 6.973 kcal/mol) and FabH (- 6.548 kcal/mol) of E. coli predicted inhibition of given enzymes as possible mechanism behind their bactericidal activity.
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Affiliation(s)
- Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University, Lahore, Punjab, 54000, Pakistan.
| | - Sidra Aslam
- Physics Department, Lahore Garrison University, Lahore, Punjab, 54000, Pakistan
| | - Ali Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore, Punjab, 54000, Pakistan
| | - Sadia Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
| | - Anum Shahzadi
- University College of Pharmacy, University of the Punjab, Lahore, 54000, Pakistan
| | - Mujtaba Ikram
- Institute of Chemical Engineering and Technology (ICET), University of the Punjab, Lahore, 54000, Pakistan
| | - Junaid Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Syed Ossama Ali Ahmad
- Solar Cell Applications Research Lab, Department of Physics, Government College University, Lahore, Punjab, 54000, Pakistan
| | - Alvina Rafiq Butt
- Physics Department, Lahore Garrison University, Lahore, Punjab, 54000, Pakistan
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Cantarella M, Impellizzeri G, Di Mauro A, Privitera V, Carroccio SC. Innovative Polymeric Hybrid Nanocomposites for Application in Photocatalysis. Polymers (Basel) 2021; 13:1184. [PMID: 33916987 PMCID: PMC8067533 DOI: 10.3390/polym13081184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 12/12/2022] Open
Abstract
The immobilization of inorganic nanomaterials on polymeric substrates has been drawing a lot of attention in recent years owing to the extraordinary properties of the as-obtained materials. The hybrid materials, indeed, combine the benefits of the plastic matter such as flexibility, low-cost, mechanical stability and high durability, with them deriving from their inorganic counterparts. In particular, if the inorganic fillers are nanostructured photocatalysts, the originated hybrid systems will be able to utilize the energy delivered by light, catalysing chemical reactions in a sustainable pathway. Most importantly, since the nanofillers can be ad-hoc anchored to the macromolecular structure, their release in the environment will be prevented, thus overcoming one of the main restrictions that impedes their applications on a large scale. In this review, several typologies of hybrid photocatalytic nanomaterials, obtained by using both organic and inorganic semiconductors and realized with different synthetic protocols, were reported and discussed. In the first part of the manuscript, nanocomposites realized by simply blending the TiO2 or ZnO nanomaterials in thermoplastic polymeric matrices are illustrated. Subsequently, the atomic layer deposition (ALD) technique is presented as an excellent method to formulate polymeric nanocomposites. Successively, some examples of polyporphyrins hybrid systems containing graphene, acting as photocatalysts under visible light irradiation, are discussed. Lastly, photocatalytic polymeric nanosponges, with extraordinary adsorption properties, are shown. All the described materials were deeply characterized and their photocatalytic abilities were evaluated by the degradation of several organic water pollutants such as dyes, phenol, pesticides, drugs, and personal care products. The antibacterial performance was also evaluated for selected systems. The relevance of the obtained results is widely overviewed, opening the route for the application of such multifunctional photocatalytic hybrid materials in wastewater remediation.
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Affiliation(s)
- Maria Cantarella
- CNR-IMM, Via S. Sofia 64, 95123 Catania, Italy; (M.C.); (A.D.M.)
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20
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Graphene Oxide Coated Zinc Oxide Core–Shell Nanofibers for Enhanced Photocatalytic Performance and Durability. COATINGS 2020. [DOI: 10.3390/coatings10121183] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recently, heterogeneous structured semiconductor photocatalysts have received significant interest in promoting global cleaning from the environmental pollution. Herein, we report the synthesis of graphene oxide (GO) wrapped zinc oxide (ZnO) core–shell nanofibers (ZnO@G CSNFs) by the simple core–shell electrospinning and subsequent annealing for efficient photocatalytic performance and stability. The heterostructured catalyst consisted of ZnO forming an enclosed core part while the GO was positioned on the surface, serving as a protective shell. Field emission scanning electron microscopy, high-resolution transmission electron microscopy and X-ray diffraction were used to confirm the synthesis of the desired product. Enhanced photocatalytic activity ZnO@G CSNFs was found compared to the corresponding ZnO NFs. Similarly, incorporation of GO into the ZnO nanofiber in a core–shell format significantly suppressed the photocorrosion. This study highlights the usefulness of using GO as the coating material to boost the photocatalytic performance of ZnO-based photocatalysts.
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Engineered Superparamagnetic Core–Shell Metal–Organic Frame-Work (Fe3O4@Ni–Co-BTC NPs) with Enhanced Photocatalytic Activity for Selective Aerobic Oxidation of Alcohols Under Solar Light Irradiation. Catal Letters 2020. [DOI: 10.1007/s10562-020-03291-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Ajibade PA, Solomane N. Synthesis and crystal structure of bis(thiomorpholinyldithiocarbamato) Zn(II): structural, optical, and photocatalytic studies of ZnS nanoparticles from the complex. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1768248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu Natal, Scottsville, South Africa
| | - Nolwazi Solomane
- School of Chemistry and Physics, University of KwaZulu Natal, Scottsville, South Africa
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Kassahun GB. High Tunability of Size Dependent Optical Properties of ZnO@M@Au (M = SiO2, In2O3, TiO2) Core/Spacer/Shell Nanostructure. ACTA ACUST UNITED AC 2019. [DOI: 10.21467/anr.2.1.1-13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This theoretical work presents a comparative study of high tunability size dependent optical properties of quantum dot/wire triple layered core shell nanostructure based on the quasi-static approximation of classical electrodynamics embedded in a fixed dielectrics function of host matrix. In this paper, local field enhancement factor (LFEF), refractive index and optical absorbance of nanocomposite are analyzed by varying core size, thickness of spacer and shell as well as dielectrics function of the spacer for the size of the nanocomposite with the range of 20 nm to 40 nm. For both quantum dot and quantum wire triple layered core shell nanostructure (CSNS), there are two resonances in visible and near/in infrared spectral region with high tunability. When the shell thickness increase and therefore increasing the gold content, the surface plasmon resonance (SPR) at the outer interface shifts to higher energy (blue-shifted) and at the inner interface weak peaks and shifted to lower energy (red-shifted). All of three optical properties, depend on core size, dielectrics and thickess of spacer, thickness of shell, shape of composite and filling factor. For the same thickness of spacer and shell of the two configurations, cylindrical triple layered CSNS less pronounced and shifted to infrared red (IR) spectral region which is recommendable for biological and photocatalysis application.
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Marković S, Stojković Simatović I, Ahmetović S, Veselinović L, Stojadinović S, Rac V, Škapin SD, Bajuk Bogdanović D, Janković Častvan I, Uskoković D. Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties. RSC Adv 2019; 9:17165-17178. [PMID: 35519876 PMCID: PMC9064477 DOI: 10.1039/c9ra02553g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 05/21/2019] [Indexed: 12/22/2022] Open
Abstract
ZnO nanopowders were produced using microwave processing of a precipitate and applied as a photoanode for photoelectrochemical water splitting. Two different surfactants, cetyltrimethylammonium bromide (CTAB) as the cationic and Pluronic F127 as the non-ionic one, were employed to in situ adjust the surface-to-bulk defect ratio in the ZnO crystal structure and further to modify the photo(electro)catalytic activity of the ZnO photoanode. The crystal structure, morphological, textural, optical and photo(electro)catalytic properties of ZnO particles were studied in detail to explain the profound effects of the surfactants on the photoanode activity. The ZnO/CTAB photoanode displayed the highest photocurrent density of 27 mA g−1, compared to ZnO (10.4 mA g−1) and ZnO/F127 photoanodes (20 mA g−1) at 1.5 V vs. SCE in 0.1 M Na2SO4 under visible illumination of 90 mW cm−2. A significant shift of the overpotential toward lower values was also observed when photoanodes were illuminated. The highest shift of the overpotential, from 1.296 to 0.248 V vs. SCE, was recorded when the ZnO/CTAB photanode was illuminated. The ZnO/CTAB photoanode provides efficient charge transfer across the electrode/electrolyte interface, with a longer lifetime of photogenerated electron–hole pairs and reduced possibility of charge recombination. The photoconversion efficiency was improved from 1.4% for ZnO and 0.9% for ZnO/F127 to 4.2% for ZnO/CTAB at 0.510 mV. A simple procedure for the synthesis of ZnO particles with improved photo(electro)catalytic properties was established and it was found that even a small amount of CTAB used during processing of ZnO increases the surface-to-bulk defect ratio. Optimization of the surface-to-bulk defect ratio in ZnO materials enables increase of the absorption capacity for visible light, rendering of the recombination rate of the photogenerated pair, as well as increase of both the photocurrent density and photoconversion efficiency. Employing CTAB in the microwave synthesis of ZnO particles enables improvement of their visible light absorption capacity and photo(electro)catalytic activity.![]()
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Affiliation(s)
| | | | - Sanita Ahmetović
- University of Belgrade
- Institute for Multidisciplinary Research
- Serbia
| | | | | | - Vladislav Rac
- University of Belgrade
- Faculty of Agriculture
- Belgrade
- Serbia
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Kratofil Krehula L, Stjepanović J, Perlog M, Krehula S, Gilja V, Travas-Sejdic J, Hrnjak-Murgić Z. Conducting polymer polypyrrole and titanium dioxide nanocomposites for photocatalysis of RR45 dye under visible light. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2463-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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26
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Han X, Harris J, Šiller L. Synthesis of porous zinc-based/zinc oxide composites via sol-gel and ambient pressure drying routes. JOURNAL OF MATERIALS SCIENCE 2018; 53:8170-8179. [PMID: 31258178 PMCID: PMC6566210 DOI: 10.1007/s10853-018-2138-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 02/12/2018] [Indexed: 06/09/2023]
Abstract
Porous Zn-based and ZnO composites are successfully fabricated via the sol-gel process and ambient pressure drying method using hexane as the drying solvent for the reduction in capillary force during drying process. Various highly porous Zn-based phases (Zn1-based and Zn5-based) that are studied by X-ray diffraction analysis, scanning electron microscopy and transmission electron microscopy show that they contribute through heat treatment (at 200 °C) to the development of ambient pressure dried nanoporous wurtzite (hexagonal) ZnO. A macroporous flower-like structure consisting of nanosheets is observed in porous Zn-based composites, and nanoporous structure is observed within platelets of ZnO nanoparticles. Possible routes for preparing highly porous Zn-based/ZnO composites are discovered by detailing the process for ambient pressure drying synthesis of porous wurzite ZnO.
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Affiliation(s)
- Xiao Han
- School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| | - Jonathan Harris
- School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
| | - Lidija Šiller
- School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, NE1 7RU UK
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Katančić Z, Gavran I, Smolković J, Hrnjak-Murgić Z. Fly ash supported photocatalytic nanocomposite poly(3,4-ethylenedioxythiophene)/TiO2
for azo dye removal under simulated solar irradiation. J Appl Polym Sci 2018. [DOI: 10.1002/app.46316] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zvonimir Katančić
- Faculty of Chemical Engineering and Technology; University of Zagreb, Marulićev trg 19; Zagreb 10000 Croatia
| | - Iva Gavran
- Faculty of Chemical Engineering and Technology; University of Zagreb, Marulićev trg 19; Zagreb 10000 Croatia
| | - Josipa Smolković
- Faculty of Chemical Engineering and Technology; University of Zagreb, Marulićev trg 19; Zagreb 10000 Croatia
| | - Zlata Hrnjak-Murgić
- Faculty of Chemical Engineering and Technology; University of Zagreb, Marulićev trg 19; Zagreb 10000 Croatia
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G. A. SJ, Arumugam S. Rare-Earth-Based MIS Type Core-Shell Nanospheres with Visible-Light-Driven Photocatalytic Activity through an Electron Hopping-Trapping Mechanism. ACS OMEGA 2018; 3:1090-1101. [PMID: 31457951 PMCID: PMC6641512 DOI: 10.1021/acsomega.7b01607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/12/2018] [Indexed: 05/04/2023]
Abstract
A bilayered rare-earth-based metal-insulator-semiconductor, Dy2O3@SiO2@ZnO core-shell nanospheres, was synthesized by a stepwise synthesis for enhanced visible photocatalytic activity. The prepared material was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, ultraviolet-visible diffuse reflectance spectroscopy, field-emission scanning electron microscopy, energy-dispersive spectroscopy, high-resolution transmission electron microscopy, selected area electron diffraction, atomic force microscopy, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller, and electron paramagnetic resonance techniques. Dy2O3@SiO2@ZnO core-shell nanospheres were found be in a spherically arranged cauliflower-like morphology (40-60 nm). The high-resolution transmission electron microscopy analysis proved the core-shell morphology of the prepared material with a single Dy2O3 core and two shells comprising SiO2 and ZnO. The material possessed a surface roughness of 4. 98 nm (2 × 2 μm area) and a band gap energy of 2.82 eV. The in situ generation of OH radicals was confirmed by electron paramagnetic resonance. Electron hopping through the SiO2 layer from ZnO to Dy2O3 played a major role in trapping electrons in the f-shells of lanthanides, thus, preventing the recombination of electron-hole pair. X-ray photoelectron spectroscopy studies proved the band alignment of the material. Brunauer-Emmett-Teller analysis further showed the core-shell surface area was 14 m2/g. The visible photocatalytic activity was tested against 2,4-D (2,4-dichlorophenoxyacetic acid), an endocrine disruptor. The kinetic studies showed that the photocatalytic degradation process followed a pseudo-first-order pathway. The photocatalyst was found to be reusable even up to the third cycle.
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Berbel Manaia E, Kiatkoski Kaminski RC, Caetano BL, Magnani M, Meneau F, Rochet A, Santilli CV, Briois V, Bourgaux C, Chiavacci LA. The Critical Role of Thioacetamide Concentration in the Formation of ZnO/ZnS Heterostructures by Sol-Gel Process. NANOMATERIALS 2018; 8:nano8020055. [PMID: 29360735 PMCID: PMC5853688 DOI: 10.3390/nano8020055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/03/2017] [Accepted: 11/06/2017] [Indexed: 11/16/2022]
Abstract
ZnO/ZnS heterostructures have emerged as an attractive approach for tailoring the properties of particles comprising these semiconductors. They can be synthesized using low temperature sol-gel routes. The present work yields insight into the mechanisms involved in the formation of ZnO/ZnS nanostructures. ZnO colloidal suspensions, prepared by hydrolysis and condensation of a Zn acetate precursor solution, were allowed to react with an ethanolic thioacetamide solution (TAA) as sulfur source. The reactions were monitored in situ by Small Angle X-ray Scattering (SAXS) and UV-vis spectroscopy, and the final colloidal suspensions were characterized by High Resolution Transmission Electron Microscopy (HRTEM). The powders extracted at the end of the reactions were analyzed by X-ray Absorption spectroscopy (XAS) and X-ray diffraction (XRD). Depending on TAA concentration, different nanostructures were revealed. ZnO and ZnS phases were mainly obtained at low and high TAA concentrations, respectively. At intermediate TAA concentrations, we evidenced the formation of ZnO/ZnS heterostructures. ZnS formation could take place via direct crystal growth involving Zn ions remaining in solution and S ions provided by TAA and/or chemical conversion of ZnO to ZnS. The combination of all the characterization techniques was crucial to elucidate the reaction steps and the nature of the final products.
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Affiliation(s)
- Eloísa Berbel Manaia
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo 14800-903, Brazil.
- Institut Galien, University Paris-Sud, The National Center for Scientific Research (CNRS), UMR 8612, 92296 Châtenay-Malabry, France.
| | | | - Bruno Leonardo Caetano
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo 14800-903, Brazil.
| | - Marina Magnani
- Chemistry Institute of São Paulo State University-UNESP, Prof. Francisco Degni Street, 55, Araraquara, São Paulo 14800-060, Brazil.
| | - Florian Meneau
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), São Paulo 13083-970, Brazil.
| | - Amélie Rochet
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), São Paulo 13083-970, Brazil.
| | - Celso Valentim Santilli
- Chemistry Institute of São Paulo State University-UNESP, Prof. Francisco Degni Street, 55, Araraquara, São Paulo 14800-060, Brazil.
| | - Valérie Briois
- Synchrotron Optimized Light Source of Intermediate Energy to LURE (SOLEIL), L'Orme des Merisiers, BP48, Saint Aubin, 91192 Gif-sur Yvette, France.
| | - Claudie Bourgaux
- Institut Galien, University Paris-Sud, The National Center for Scientific Research (CNRS), UMR 8612, 92296 Châtenay-Malabry, France.
| | - Leila Aparecida Chiavacci
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo 14800-903, Brazil.
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Liang YC, Wang CC. Surface crystal feature-dependent photoactivity of ZnO–ZnS composite rods via hydrothermal sulfidation. RSC Adv 2018; 8:5063-5070. [PMID: 35539554 PMCID: PMC9078038 DOI: 10.1039/c7ra13061a] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 01/24/2018] [Indexed: 12/03/2022] Open
Abstract
ZnO–ZnS core–shell composite rods were synthesized using a two-step facile hydrothermal methodology wherein different sulfidation durations were employed. The effects of sulfidation duration on the morphology and crystalline quality of ZnS shell layers on the surfaces of ZnO rods were investigated. A ZnS shell layer with visible granular features was obtained in the adequately controlled 3 h sulfidation process. A structural analysis demonstrated that the ZnS shell layers of ZnO–ZnS composite rods synthesized after 3 h sulfidation were in a well-defined crystalline cubic zinc blend phase. Moreover, optical properties revealed that these composite rods had a higher light-harvesting ability than those obtained after 1 and 2 h sulfidation. The density of surface crystal defects and the photoexcited charge separation efficiency of the composite rods were associated with changes in the microstructure of the synthesized ZnS shell layers. The optimal sulfidation duration of 3 h for the ZnO–ZnS composite rods resulted in the highest photocatalytic activity for the given photodegradation test conditions. The improved light harvesting and charge transport at the ZnO–ZnS heterointerface accounted for the enhanced photocatalytic activity of the ZnO–ZnS composite rods synthesized after 3 h sulfidation. ZnO–ZnS core–shell composite rods were synthesized using a two-step facile hydrothermal methodology wherein different sulfidation durations were employed.![]()
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Affiliation(s)
- Yuan-Chang Liang
- Institute of Materials Engineering
- National Taiwan Ocean University
- Keelung 20224
- Taiwan
| | - Chein-Chung Wang
- Institute of Materials Engineering
- National Taiwan Ocean University
- Keelung 20224
- Taiwan
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31
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Baranowska-Korczyc A, Kościński M, Coy EL, Grześkowiak BF, Jasiurkowska-Delaporte M, Peplińska B, Jurga S. ZnS coating for enhanced environmental stability and improved properties of ZnO thin films. RSC Adv 2018; 8:24411-24421. [PMID: 35539207 PMCID: PMC9082086 DOI: 10.1039/c8ra02823k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 07/02/2018] [Indexed: 01/24/2023] Open
Abstract
Low environmental stability of ZnO nanostructures in hydrophilic systems is a crucial factor limiting their practical applications. ZnO nanomaterials need surface passivation with different water-insoluble compounds. This study describes a one-step passivation process of polycrystalline ZnO films with ZnS as a facile method of ZnO surface coating. A simple sulfidation reaction was carried out in gas-phase H2S and it resulted in formation of a ZnS thin layer on the ZnO surface. The ZnS layer not only inhibited the ZnO dissolving process in water but additionally improved its mechanical and electrical properties. After the passivation process, ZnO/ZnS films remained stable in water for over seven days. The electrical conductivity of the ZnO films increased about 500-fold as a result of surface defect passivation and the removal of oxygen molecules which can trap free carriers. The nanohardness and Young's modulus of the samples increased about 64% and 14%, respectively after the ZnS coating formation. Nanowear tests performed using nanoindentation methods revealed reduced values of surface displacements for the ZnO/ZnS system. Moreover, both ZnO and ZnO/ZnS films showed antimicrobial properties against Escherichia coli. ZnS coating improves mechanical, electrical, antibacterial properties and environmental stability of ZnO nanofilms.![]()
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Affiliation(s)
| | - Mikołaj Kościński
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
- Department of Physics and Biophysics
| | - Emerson L. Coy
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
| | | | | | - Barbara Peplińska
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
| | - Stefan Jurga
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
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32
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Photocatalytic degradation of rhodamine B using cysteine capped ZnO/P(3HB-co-3HHx) fiber under UV and visible light irradiation. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1232-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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33
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Sushma C, Girish Kumar S. Advancements in the zinc oxide nanomaterials for efficient photocatalysis. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0217-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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34
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Dutta S, Chatterjee S, Mukherjee I, Saha R, Singh BP. Fabrication of ZnS Hollow Spheres and RGO-ZnS Nanocomposite Using Cysteamine as Novel Sulfur Source: Photocatalytic Performance on Industrial Dyes and Effluent. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00107] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Suvanka Dutta
- Department
of Chemistry, National Institute of Technology Durgapur, Durgapur 713209, India
| | - Sriparna Chatterjee
- CSIR-Institute of Minerals and Materials Technology,
Acharya Vihar, Bhubaneswar 751 013, India
| | - Indrani Mukherjee
- Department
of Chemistry, National Institute of Technology Durgapur, Durgapur 713209, India
- CSIR-Institute of Minerals and Materials Technology,
Acharya Vihar, Bhubaneswar 751 013, India
| | - Rajnarayan Saha
- Department
of Chemistry, National Institute of Technology Durgapur, Durgapur 713209, India
| | - Bimal P. Singh
- CSIR-Institute of Minerals and Materials Technology,
Acharya Vihar, Bhubaneswar 751 013, India
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35
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Marković S, Stanković A, Dostanić J, Veselinović L, Mančić L, Škapin SD, Dražič G, Janković-Častvan I, Uskoković D. Simultaneous enhancement of natural sunlight- and artificial UV-driven photocatalytic activity of a mechanically activated ZnO/SnO2 composite. RSC Adv 2017. [DOI: 10.1039/c7ra06895f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mechanical milling of commercial ZnO and SnO2 was used to produce a ZnO/SnO2 composite with a high density of surface defects; in particular, zinc interstitials (Zni) and oxygen vacancies (VO).
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Affiliation(s)
| | - Ana Stanković
- Institute of Technical Sciences of SASA
- 11000 Belgrade
- Serbia
| | | | | | - Lidija Mančić
- Institute of Technical Sciences of SASA
- 11000 Belgrade
- Serbia
| | | | - Goran Dražič
- Laboratory for Materials Chemistry
- National Institute of Chemistry
- Ljubljana
- Slovenia
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36
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Kumar A, Rout L, Achary LSK, Mohanty SK, Dash P. A combustion synthesis route for magnetically separable graphene oxide–CuFe2O4–ZnO nanocomposites with enhanced solar light-mediated photocatalytic activity. NEW J CHEM 2017. [DOI: 10.1039/c7nj02070h] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A novel GO–CuFe2O4–ZnO ternary nanocomposite has been designed as an efficient photocatalyst for the degradation of four toxic organic pollutants.
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Affiliation(s)
- Aniket Kumar
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Lipeeka Rout
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | | | | | - Priyabrat Dash
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
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37
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Surfactant free, simple, morphological and defect engineered ZnO nanocatalyst: Effective study on sunlight driven and reusable photocatalytic properties. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.06.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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38
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Maneechakr P, Karnjanakom S, Samerjit J. Facile synthesis of ZnO particles via benzene-assisted co-solvothermal method with different alcohols and its application. RSC Adv 2016. [DOI: 10.1039/c6ra13260j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
High catalytic activity and 82.8% selectivity of CH3OH was obtained using Cu/ZnO–Me.
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Affiliation(s)
- Panya Maneechakr
- Department of Chemistry
- Faculty of Science
- Rangsit University
- Pathumthani 12000
- Thailand
| | - Surachai Karnjanakom
- Department of Chemistry
- Faculty of Science
- Rangsit University
- Pathumthani 12000
- Thailand
| | - Jittima Samerjit
- Department of Chemistry
- Faculty of Science
- Rangsit University
- Pathumthani 12000
- Thailand
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39
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Azarang M, Shuhaimi A, Sookhakian M. Crystalline quality assessment, photocurrent response and optical properties of reduced graphene oxide uniformly decorated zinc oxide nanoparticles based on the graphene oxide concentration. RSC Adv 2015. [DOI: 10.1039/c5ra06123g] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Zinc oxide nanoparticles–reduced graphene oxide composites with a high degree of crystallinity and high dispersity were successfully synthesized via a facile sol–gel one-pot method in a starch environment as a natural surfactant for the fabrication of solar cell devices.
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Affiliation(s)
- Majid Azarang
- Nitride Semiconductor Research Laboratory
- Low Dimensional Materials Research Center (LDMRC)
- Department of Physics
- Faculty of Sciences
- University of Malaya
| | - Ahmad Shuhaimi
- Nitride Semiconductor Research Laboratory
- Low Dimensional Materials Research Center (LDMRC)
- Department of Physics
- Faculty of Sciences
- University of Malaya
| | - M. Sookhakian
- Low Dimensional Materials Research Center (LDMRC)
- Department of Physics
- Faculty of Sciences
- University of Malaya
- 50603 Kuala Lumpur
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