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Mohebbi E, Pavoni E, Minnelli C, Galeazzi R, Mobbili G, Sabbatini S, Stipa P, Fakhrabadi MMS, Laudadio E. Adsorption of Polylactic-co-Glycolic Acid on Zinc Oxide Systems: A Computational Approach to Describe Surface Phenomena. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:687. [PMID: 38668181 PMCID: PMC11054994 DOI: 10.3390/nano14080687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 04/29/2024]
Abstract
Zinc oxide and polylactic-co-glycolic acid (ZnO-PLGA) nanocomposites are known to exhibit different biomedical applications and antibacterial activity, which could be beneficial for adding to wound dressings after different surgeries. However, possible cytotoxic effects along with various unexpected activities could reduce the use of these prominent systems. This is correlated to the property of ZnO, which exhibits different polymeric forms, in particular, wurtzite, zinc-blende, and rocksalt. In this study, we propose a computational approach based on the density functional theory to investigate the properties of ZnO-PLGA systems in detail. First, three different stable polymorphs of ZnO were considered. Subsequently, the abilities of each system to absorb the PLGA copolymer were thoroughly investigated, taking into account the modulation of electrical, optical, and mechanical properties. Significant differences between ZnO and PLGA systems have been found; in this study, we remark on the potential use of these models and the necessity to describe crucial surface aspects that might be challenging to observe with experimental approaches but which can modulate the performance of nanocomposites.
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Affiliation(s)
- Elaheh Mohebbi
- Department of Science and Engineering of Matter, Environment and Urban Planning, Marche Polytechnic University, 60131 Ancona, Italy; (E.M.); (E.P.); (S.S.); (P.S.)
| | - Eleonora Pavoni
- Department of Science and Engineering of Matter, Environment and Urban Planning, Marche Polytechnic University, 60131 Ancona, Italy; (E.M.); (E.P.); (S.S.); (P.S.)
| | - Cristina Minnelli
- Department of Life and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (C.M.); (R.G.); (G.M.)
| | - Roberta Galeazzi
- Department of Life and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (C.M.); (R.G.); (G.M.)
| | - Giovanna Mobbili
- Department of Life and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (C.M.); (R.G.); (G.M.)
| | - Simona Sabbatini
- Department of Science and Engineering of Matter, Environment and Urban Planning, Marche Polytechnic University, 60131 Ancona, Italy; (E.M.); (E.P.); (S.S.); (P.S.)
| | - Pierluigi Stipa
- Department of Science and Engineering of Matter, Environment and Urban Planning, Marche Polytechnic University, 60131 Ancona, Italy; (E.M.); (E.P.); (S.S.); (P.S.)
| | - Mir Masoud Seyyed Fakhrabadi
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran P.O. Box 14155-6619, Iran;
| | - Emiliano Laudadio
- Department of Science and Engineering of Matter, Environment and Urban Planning, Marche Polytechnic University, 60131 Ancona, Italy; (E.M.); (E.P.); (S.S.); (P.S.)
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2
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Zhang Y, Luo X, Ma L, Feng L, Wu Y, Qin B, Ji X, Liu C. Ethanol templated synthesis of microporous/mesoporous nanozinc oxide with multi-level structure and its outstanding photo-catalytic properties. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:115517-115526. [PMID: 37884716 DOI: 10.1007/s11356-023-30523-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/13/2023] [Indexed: 10/28/2023]
Abstract
Zinc oxide has been of interest because of its efficient redox capacity in the UV spectral region. However, the high bandwidth limits its application in the visible region. Although synthesizing heterojunctions and doping with other elements have become the focus of the problem, it inevitably has an impact on the environment. In contrast, the template method is not only environmentally friendly but also can be used to increase the degradation rate by changing the nanoparticle mesoporous structure. Microporous/mesoporous zinc oxide with multi-level structure was synthesized using anhydrous ethanol as a green templating agent in a mild and energy-efficient method. The prepared nZnO was characterized using XRD, SEM, BET, and HR-TEM. XRD confirmed that the formation of hexagonal wurtzite zincite nZnO with good crystallinity. SEM results showed that the products were flower-like structures composed of nanosheets with a thickness of 20 nm and an average diameter of 400 nm. TEM and BET confirmed the presence of pits with diameters ranging from about 1 nm to 20 nm existed on the surface of the nanosheets, while the specific surface area of 28.05 m2/g and the pore volume of 0.069 cm3/g also provide advantages for nZnO as a photocatalytic material. The synthesized nZnO overcame the disadvantage of responding only in the UV region, and the photocatalytic degradation efficiency of MB reached 93.2% after 60 min of xenon lamp irradiation, and stabilized at 86.15% after five photocycling tests. Compared with other kinds of templates, anhydrous ethanol has the advantages of environmental friendliness and simple post-processing, and it also provides ideas for the synthesis of multilevel structures of other nanomaterials.
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Affiliation(s)
- Yucong Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Xuebo Luo
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Lijie Ma
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Linxin Feng
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Yangchen Wu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Binbin Qin
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, People's Republic of China
| | - Xiujie Ji
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, People's Republic of China.
| | - Chao Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, People's Republic of China
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Annam Renita A, Sathish S, Kumar PS, Prabu D, Manikandan N, Mohamed Iqbal A, Rajesh G, Rangasamy G. Emerging aspects of metal ions-doped zinc oxide photocatalysts in degradation of organic dyes and pharmaceutical pollutants - A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118614. [PMID: 37454449 DOI: 10.1016/j.jenvman.2023.118614] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
In recent periods, a broad assortment of continual organic contaminants has been released into our natural water resources. Indeed, it is exceedingly poisonous and perilous to living things; thus, the elimination of these organic pollutants before release into the water bodies is vital. A variety of techniques have been utilized to remove these organic pollutants with advanced oxidation photocatalytic methods with zinc oxide (ZnO) nanoparticles being commonly used as a capable catalyst for contaminated water treatment. Nevertheless, its broad energy gap, which can be only stimulated under an ultraviolet (UV) light source, and high recombination pairs of electrons and holes limit their photocatalytic behaviors. However, numerous methods have been suggested to decrease its energy gap for visible regions. Including, the doping ZnO with metal ions (dopant) can be considered as an effectual route not only the reason for a movement of the absorption edges toward the higher (visible light) region but also to lower the electron-hole pair (e--h+) recombination. This review concentrated on the impact of dissimilar types of metal ions (dopants) on the advancement in the degradation performance of ZnO. So, this work demonstrates a vital review of contemporary attainments in the alteration of ZnO nanoparticles for organic pollutants eliminations. Besides, the effect of doping ions including transition metals, rare earth metals, and metal ions (substitutional and interstitial) concerning numerous types of altered ZnO are summarized. The photodegradation mechanisms for pristine and metal-modified ZnO nanoparticles are also conferred.
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Affiliation(s)
- A Annam Renita
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 119, India
| | - S Sathish
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 119, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India; Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali 140413, India.
| | - D Prabu
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 119, India
| | - N Manikandan
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 119, India
| | - A Mohamed Iqbal
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 119, India
| | - G Rajesh
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India
| | - Gayathri Rangasamy
- School of Engineering, Lebanese American University, Byblos, Lebanon; Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
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Mondal S, Ayon SA, Islam MS, Rana MS, Billah MM. Morphological evaluation and boosted photocatalytic activity of N-doped ZnO nanoparticles prepared via Co-precipitation method. Heliyon 2023; 9:e20948. [PMID: 37876471 PMCID: PMC10590957 DOI: 10.1016/j.heliyon.2023.e20948] [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: 06/09/2023] [Revised: 08/10/2023] [Accepted: 10/11/2023] [Indexed: 10/26/2023] Open
Abstract
Pristine and nitrogen (N) doped zinc oxide (ZnNxO1-x, x = 0, 0.005, 0.01, and 0.02) nanoparticles (NPs) were successfully synthesized using chemical co-precipitation approach. The formation of pure crystalline wurtzite ZnO phase without any second phase during N-doping was confirmed by X-ray diffraction (XRD) analysis of N-doped ZnO samples. X-ray photoelectron spectroscopic (XPS) analysis ensured the effective inclusion of nitrogen into ZnO matrix. The morphological analysis revealed the formation of nanorods as a result of N-doping. The optical band gap calculated from UV-vis spectroscopy was observed to decrease up to 1 mol.% N doping followed by a subtle increase. Photoluminescence (PL) spectra revealed that electron-hole recombination was the least for 1 mol.% N doped ZnO NPs. ZnN0.01O0.99 NPs showed superior photocatalytic activity among all samples due to rod-shaped NPs and reduced electron-hole recombination, which was accessed by the photodegradation of Rhodamine B (RhB).
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Affiliation(s)
- Sudipta Mondal
- Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Sikder Ashikuzzaman Ayon
- Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Md Saiful Islam
- Department of Nanomaterials and Ceramic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
| | - Md Shahjalal Rana
- Department of Nanomaterials and Ceramic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
| | - Md Muktadir Billah
- Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
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Meena S, Sethi M, Meena S, Saini P, Kumar K, Saini S, Shekhawat S, Meena ML, Dandia A, Lin SD, Parewa V. Dopant-driven recombination delay and ROS enhancement in nanoporous Cd 1-xCu xS heterogeneous photocatalyst for the degradation of DR-23 dye under visible light irradiation. ENVIRONMENTAL RESEARCH 2023; 231:116181. [PMID: 37207730 DOI: 10.1016/j.envres.2023.116181] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 04/11/2023] [Accepted: 05/15/2023] [Indexed: 05/21/2023]
Abstract
Developing an efficient heterogeneous photocatalyst for environmental remediation and treatment strategies using visible light harvesting processes is promising but challenging. Herein, Cd1-xCuxS materials have been synthesized and characterized by precise analytical tools. Cd1-xCuxS materials exhibited excellent photocatalytic activity for direct Red 23 (DR-23) dye degradation in visible light irradiation. The operational parameters, like dopant concentration, photocatalyst dose, pH, and initial concentration of dye were investigated during the process. The photocatalytic degradation process follows pseudo-first-order kinetics. As compared to other tested materials, 5% Cu doped CdS material revealed superior photocatalytic performance for the degradation of DR-23 (k = 13.96 × 10-3 min-1). Transient absorption spectroscopy, EIS, PL, and transient photocurrent indicated that adding copper to the CdS matrix improved the separation of photo-generated charge carriers by lowering the recombination rate. Spin-trapping experiments recognized the photodegradation primarily based on secondary redox products, i.e., hydroxyl and superoxide radicals. According to by Mott-Schottky curves, photocatalytic mechanism and photo-generated charge carrier density were elucidated regarding dopant-induced valence and conduction bands shifting. Thermodynamic probability of radical formation in line with the altered redox potentials by Cu doping has been discussed in the mechanism. The identification of intermediates by mass spectrometry study also showed a plausible breakdown mechanism for DR-23. Moreover, samples treated with nanophotocatalyst displayed excellent results when tested for water quality metrics such as DO, TDS, BOD, and COD. Developed nanophotocatalyst shows high recyclability with superior heterogeneous nature. 5% Cu-doped CdS also exhibit strong photocatalytic activity for the degradation of colourless pollutant bisphenol A (BPA) under visible light (k = 8.45 × 10-3 min-1). The results of this study offer exciting opportunities to alter semiconductors' electronic band structures for visible-light-induced photocatalytic activity for wastewater treatment.
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Affiliation(s)
- Savita Meena
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Mukul Sethi
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Swati Meena
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Pratibha Saini
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur, India; Friedrich Schiller Univ Jena, Inst Anorgan & Analyt Chem, Humboldt Str 8, D-07743, Jena, Germany
| | - Krishan Kumar
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Surendra Saini
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Sumita Shekhawat
- Department of Physics, Kanoria PG Mahila Mahavidyalaya, Jaipur, India
| | - Mohan Lal Meena
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Anshu Dandia
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Shawn D Lin
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Vijay Parewa
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur, India.
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Ghaffar S, Abbas A, Naeem-Ul-Hassan M, Assad N, Sher M, Ullah S, Alhazmi HA, Najmi A, Zoghebi K, Al Bratty M, Hanbashi A, Makeen HA, Amin HMA. Improved Photocatalytic and Antioxidant Activity of Olive Fruit Extract-Mediated ZnO Nanoparticles. Antioxidants (Basel) 2023; 12:1201. [PMID: 37371931 DOI: 10.3390/antiox12061201] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Photodegradation is an efficient strategy for the removal of organic pollutants from wastewater. Due to their distinct properties and extensive applications, semiconductor nanoparticles have emerged as promising photocatalysts. In this work, olive (Olea Europeae) fruit extract-based zinc oxide nanoparticles (ZnO@OFE NPs) were successfully biosynthesized using a one-pot sustainable method. The prepared ZnO NPs were systematically characterized using UV-Vis, FTIR, SEM, EDX and XRD and their photocatalytic and antioxidant activity was evaluated. SEM demonstrated the formation of spheroidal nanostructures (57 nm) of ZnO@OFE and the EDX analysis confirmed its composition. FTIR suggested the modification/capping of the NPs with functional groups of phytochemicals from the extract. The sharp XRD reflections revealed the crystalline nature of the pure ZnO NPs with the most stable hexagonal wurtzite phase. The photocatalytic activity of the synthesized catalysts was evaluated by measuring the degradation of methylene blue (MB) and methyl orange (MO) dyes under sunlight irradiation. Improved degradation efficiencies of 75% and 87% were achieved within only 180 min with photodegradation rate constant k of 0.008 and 0.013 min-1 for MB and MO, respectively. The mechanism of degradation was proposed. Additionally, ZnO@OFE NPs exhibited potent antioxidant activity against DPPH, hydroxyl, peroxide and superoxide radicals. Hence, ZnO@OFE NPs may have potential as a cost-effective and green photocatalyst for wastewater treatment.
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Affiliation(s)
- Sadia Ghaffar
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Azhar Abbas
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
- Department of Chemistry, Government Ambala Muslim Graduate College Sargodha, Sargodha 40100, Pakistan
| | | | - Nasir Assad
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Muhammad Sher
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Sami Ullah
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Hassan A Alhazmi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan 82912, Saudi Arabia
- Substance Abuse and Toxicology Research Centre, Jazan University, Jazan 82912, Saudi Arabia
| | - Asim Najmi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan 82912, Saudi Arabia
| | - Khalid Zoghebi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan 82912, Saudi Arabia
| | - Mohammed Al Bratty
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan 82912, Saudi Arabia
| | - Ali Hanbashi
- Department of Pharmacology, College of Pharmacy, Jazan University, Jazan 82912, Saudi Arabia
| | - Hafiz A Makeen
- Pharmacy Practice Research Unit, Department of Clinical Pharmacy, College of Pharmacy, Jazan University, Jazan 82912, Saudi Arabia
| | - Hatem M A Amin
- Faculty of Chemistry and Biochemistry, Ruhr University Bochum, 44801 Bochum, Germany
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
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Luan L, Sun K, Zhang D, Bai K, Han L, Xu C, Li L, Duan L. First-principles study on the electronic structure and photocatalytic property of a novel two-dimensional ZrS 2/InSe heterojunction. RSC Adv 2023; 13:11150-11159. [PMID: 37056969 PMCID: PMC10086572 DOI: 10.1039/d2ra08000a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/17/2023] [Indexed: 04/15/2023] Open
Abstract
Photocatalytic water cracking technology provides a broad prospect for solving the current energy crisis using solar energy and water resources. In this paper, a two-dimensional ZrS2/InSe heterojunction for accelerating the process of hydrogen production from water decomposition was constructed, and its electronic structure and photocatalytic property were studied using first-principles calculation. The results show that the lattice mismatch rate of the heterojunction from monolayer ZrS2 and monolayer InSe is 2.48%, and its binding energy is -1.696 eV, indicating that the structure of the heterojunction is stable. The ZrS2/InSe heterojunction is an indirect bandgap with a bandgap value of 1.41 eV and a typical type-II band arrangement. Importantly, the ZrS2/InSe heterostructure has a Z-scheme structure, which is beneficial to the separation of photogenerated electron hole pairs. Moreover, the ZrS2/InSe heterojunction has a strong absorption ability for visible light (up to 3.84 × 105 cm-1), which is helpful for improving its photocatalytic efficiency. The two-dimensional ZrS2/InSe heterojunction is a very promising photocatalyst, as concluded from the above studies.
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Affiliation(s)
- Lijun Luan
- School of Materials Science and Engineering, Chang'an University Xi'an 710064 China
| | - Kaili Sun
- School of Materials Science and Engineering, Chang'an University Xi'an 710064 China
| | - Di Zhang
- School of Materials Science and Engineering, Chang'an University Xi'an 710064 China
| | - Kaiyang Bai
- School of Materials Science and Engineering, Chang'an University Xi'an 710064 China
| | - Liuyang Han
- School of Materials Science and Engineering, Chang'an University Xi'an 710064 China
| | - Changyan Xu
- School of Materials Science and Engineering, Chang'an University Xi'an 710064 China
| | - Long Li
- School of Materials Science and Engineering, Chang'an University Xi'an 710064 China
| | - Li Duan
- School of Materials Science and Engineering, Chang'an University Xi'an 710064 China
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Mondal US, Das S, Somu P, Paul S. Silica sand-supported nano zinc oxide-graphene oxide composite induced rapid photocatalytic decolorization of azo dyes under sunlight and improved antimicrobial activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:17226-17244. [PMID: 36194330 DOI: 10.1007/s11356-022-23248-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Here, silica sand-supported heterojunction composite of nano zinc oxide (nZnO) and graphene oxide nanosheet (nZnO-GO@SS) was prepared, and its potential as an efficient photocatalyst for the degradation of methylene blue (MB) and Rhodamine-B (Rh-B) under sunlight was demonstrated. Transmission electron microscopy confirmed the uniform distribution of spherically shaped nZnO of average size of approximately 8 nm over graphene oxide nanosheet (GO) in the composites. Photodegradation yields of 95.3% and 97.5% for 100 ppm of MB and Rh-B dye within 150 and 220 min, respectively, were achieved under sunlight by the prepared nanocatalyst (nZnO-GO), while sand microparticle-supported nanocatalyst (nZnO-GO@SS) demonstrated faster degradation of MB and Rh-B, i.e., within 120 and 160 min, respectively. Furthermore, when the recyclability of the photocatalyst was studied, the nZnO-GO exhibited more than 80% degradation efficiency after five cycles for both the dyes and nZnO-GO@SS demonstrated 10% higher (~90%) removal capability after five cycles of reuse. Furthermore, the antibacterial assay showed complete inactivation of Escherichia coli and Staphylococcus aureus bacterial strain by nZnO-GO@SS. Hence, our proposed strategy for the removal of toxic dyes from the aquatic environment under sunlight proved that sand microparticle-supported nanocatalyst (nZnO-GO@SS) might be a superior, cost-effective, and suitable photocatalytic system for industrial applications toward toxic dye removal and decontamination from industrial wastewater.
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Affiliation(s)
- Uma Sankar Mondal
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India
| | - Sohel Das
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India
| | - Prathap Somu
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India
| | - Subhankar Paul
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India.
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9
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Paul S, Sen B, Basak N, Chakraborty N, Bhakat K, Das S, Islam E, Mondal S, Abbas SJ, Ali SI. Zn 3Sb 4O 6F 6 and KI-Doped Zn 3Sb 4O 6F 6: A Metal Oxyfluoride System for Photocatalytic Activity, Knoevenagel Condensation, and Bacterial Disinfection. Inorg Chem 2023; 62:1032-1046. [PMID: 36598860 DOI: 10.1021/acs.inorgchem.2c04006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Zn3Sb4O6F6 crystallites were synthesized by a pH-regulated hydrothermal synthetic approach, while doping on Zn3Sb4O6F6 by KI was performed by the "incipient wetness impregnation technique." The effect of KI in Zn3Sb4O6F6 is found with the changes in morphology in the doped compound, i.e., needle-shaped particles with respect to the irregular cuboid and granular shaped in the pure compound. Closer inspection of the powder diffraction pattern of doped compounds also reveals the shifting of Braggs' peaks toward a lower angle and the difference in cell parameters compared to the pure compound. Both metal oxyfluoride comprising lone pair elements and their doped compounds have been successfully applied as photocatalysts for methylene blue dye degradation. Knoevenagel condensation reactions were performed using Zn3Sb4O6F6 as the catalyst and confirmed 99% yield even at 60 °C temperature under solvent-free conditions. Both pure and KI-doped compounds were tested against several standard bacterial strains, i.e., Enterobacter sp., Escherichia coli, Staphylococcus sp., Salmonella sp., Bacillus sp., Proteous sp., Pseudomonas sp., and Klebsiella sp. by the "disk diffusion method" and their antimicrobial activities were confirmed.
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Affiliation(s)
- Sayantani Paul
- Department of Chemistry, University of Kalyani, Nadia, Kalyani741235, West Bengal, India
| | - Bibaswan Sen
- Department of Chemistry, University of Kalyani, Nadia, Kalyani741235, West Bengal, India
| | - Nilendu Basak
- Department of Microbiology, University of Kalyani, Nadia, Kalyani741235, West Bengal, India
| | - Nirman Chakraborty
- CSIR-Central Glass and Ceramic Research Institute, Jadavpur, Kolkata700032, West BengalIndia
| | - Kiron Bhakat
- Department of Microbiology, University of Kalyani, Nadia, Kalyani741235, West Bengal, India
| | - Sangita Das
- Department of Chemistry, University of Kalyani, Nadia, Kalyani741235, West Bengal, India
| | - Ekramul Islam
- Department of Microbiology, University of Kalyani, Nadia, Kalyani741235, West Bengal, India
| | - Swastik Mondal
- CSIR-Central Glass and Ceramic Research Institute, Jadavpur, Kolkata700032, West BengalIndia
| | - Sk Jahir Abbas
- Institute of Molecular Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai200025, China
| | - Sk Imran Ali
- Department of Chemistry, University of Kalyani, Nadia, Kalyani741235, West Bengal, India
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10
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Murshed MK, Dursun AY, Dursun G. Application of response surface methodology on photocatalytic degradation of Astrazon Orange G dye by ZnO photocatalyst: Internal mass transfer effects. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.09.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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11
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Zuo M, Li X, Liang Y, Zhao F, Sun H, Liu C, Gong X, Qin P, Wang H, Wu Z, Luo L. Modification of Sulfur doped Carbon nitride and its application in photocatalysis. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Zang C, Chen H, Han X, Zhang W, Wu J, Liang F, Dai J, Liu H, Zhang G, Zhang KQ, Ge M. Rational construction of ZnO/CuS heterostructures-modified PVDF nanofiber photocatalysts with enhanced photocatalytic activity. RSC Adv 2022; 12:34107-34116. [PMID: 36544997 PMCID: PMC9706242 DOI: 10.1039/d2ra06151a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022] Open
Abstract
PVDF/ZnO/CuS photocatalysts with ZnO/CuS heterojunctions were synthesized via electrospinning, hydrothermal, and ion-exchange techniques. As matrix materials, electrospun PVDF nanofibers are easy to be recycled and reused. ZnO nanorods anchored on PVDF nanofiber with high specific surface area provide abundant active reaction sites for photocatalysis. While the loaded CuS nanoparticles as a photosensitizer compensate the low quantum efficiency of ZnO and improve the visible-light photocatalytic efficiency. As a result, the PVDF/ZnO/CuS composited photocatalyst exhibits outstanding photocatalytic performance in exposure to UV and visible light owing to the suppressed recombination of electron-hole pairs and widened visible light absorption range. The kinetic constants of PVDF/ZnO/CuS nanocomposites under UV irradiation (9.01 × 10-3 min-1) and visible light (6.53 × 10-3 min-1) irradiation were 3.66 and 2.53 times higher than that of PVDF/ZnO (2.46 × 10-3 min-1 & 2.58 × 10-3 min-1), respectively. Furthermore, PVDF/ZnO/CuS nanocomposites demonstrate excellent robustness in terms of recycling and reuse, which is advantageous in practical applications.
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Affiliation(s)
- Chuanfeng Zang
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China
| | - Hao Chen
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China
| | - Xiangye Han
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China
| | - Wei Zhang
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China
| | - Junfang Wu
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China
| | - Fanghua Liang
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China
| | - Jiamu Dai
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China
| | - Hongchao Liu
- Institute of Applied Physics and Materials Engineering, University of MacauMacau 999078P. R. China
| | - Guangyu Zhang
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China
| | - Ke-Qin Zhang
- Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production, National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow UniversitySuzhou 215123P. R. China
| | - Mingzheng Ge
- School of Textile and Clothing, Nantong UniversityNantong 226019P. R. China,Institute of Applied Physics and Materials Engineering, University of MacauMacau 999078P. R. China,Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production, National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow UniversitySuzhou 215123P. R. China
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Shaikh B, Bhatti MA, Shah AA, Tahira A, Shah AK, Usto A, Aftab U, Bukhari SI, Alshehri S, Shah Bukhari SNU, Tonezzer M, Vigolo B, Ibhupoto ZH. Mn 3O 4@ZnO Hybrid Material: An Excellent Photocatalyst for the Degradation of Synthetic Dyes including Methylene Blue, Methyl Orange and Malachite Green. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3754. [PMID: 36364529 PMCID: PMC9657031 DOI: 10.3390/nano12213754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/13/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
In this study, we synthesized hybrid systems based on manganese oxide@zinc oxide (Mn3O4@ZnO), using sol gel and hydrothermal methods. The hybrid materials exhibited hierarchical morphologies and structures characterized by the hexagonal phase of ZnO and the tetragonal phase of Mn3O4. The hybrid materials were tested for degradation of methylene blue (MB), methyl orange (MO), and malachite green (MG) under ultraviolet (UV) light illumination. The aim of this work was to observe the effect of various amounts of Mn3O4 in enhancing the photocatalytic properties of ZnO-based hybrid structures towards the degradation of MB, MO and MG. The ZnO photocatalyst showed better performance with an increasing amount of Mn3O4, and the degradation efficiency for the hybrid material containing the maximum amount of Mn3O4 was found to be 94.59%, 89.99%, and 97.40% for MB, MO and MG, respectively. The improvement in the performance of hybrid materials can be attributed to the high charge separation rate of electron-hole pairs, the co-catalytic role, the large number of catalytic sites, and the synergy for the production of high quantities of oxidizing radicals. The performance obtained from the various Mn3O4@ZnO hybrid materials suggest that Mn3O4 can be considered an effective co-catalyst for a wide range of photocatalytic materials such as titanium dioxide, tin oxide, and carbon-based materials, in developing practical hybrid photocatalysts for the degradation of dyes and for wastewater treatment.
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Affiliation(s)
- Benazir Shaikh
- Institute of Environmental Sciences, University of Sindh, Jamshoro 76080, Pakistan
| | - Muhammad Ali Bhatti
- Institute of Environmental Sciences, University of Sindh, Jamshoro 76080, Pakistan
| | - Aqeel Ahmed Shah
- Wet Chemistry Laboratory, Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
| | - Aneela Tahira
- Dr. M.A Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Abdul Karim Shah
- Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi 74800, Pakistan
| | - Azam Usto
- Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi 74800, Pakistan
| | - Umair Aftab
- Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology, Jamshoro 7680, Pakistan
| | - Sarah I. Bukhari
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Syed Nizam Uddin Shah Bukhari
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, School of Material Science, Beijing University of Chemical Technology, Beijing 100029, China
- Department of Basic Science and Humanities, Dawood University of Engineering and Technology, Karachi 74800, Pakistan
| | - Matteo Tonezzer
- IMEM-CNR, Sede di Trento-FBK, Via alla Cascata 56/C, 38123 Trento, Italy
| | - Brigitte Vigolo
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France
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Oyewo OA, Ramaila S, Mavuru L, Onwudiwe DC. Enhanced photocatalytic degradation of methyl orange using Sn-ZnO/GO nanocomposite. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2022. [DOI: 10.1016/j.jpap.2022.100131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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15
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Ragupathy S, Priyadharsan A, AlSalhi MS, Devanesan S, Guganathan L, Santhamoorthy M, Kim SC. Effect of doping and loading Parameters on photocatalytic degradation of brilliant green using Sn doped ZnO loaded CSAC. ENVIRONMENTAL RESEARCH 2022; 210:112833. [PMID: 35150712 DOI: 10.1016/j.envres.2022.112833] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
Sn doped ZnO loaded cotton stalk activated carbon (Sn-ZnO/CSAC) was prepared by chemical precipitation method, and the products were characterized. The XRD resultants confirm that the presence of hexagonal wurtzite phase of the bare ZnO. Furthermore, particular particle size gradually decreases (21.49 nm) due to doping and loading. UV-Vis absorption intensity of doped/loaded sample was red-shifted and then PL intensity is reduced. The photocatalytic performances of bare, Sn-doped ZnO and Sn-ZnO/CSAC was estimated by photodegradation of brilliant green (BG) under sunlight. The photodegradation of BG dye in 120 min over Sn-doped ZnO/CSAC is nearly 96.52%, which is considerably improved than bare ZnO (72.60%), respectively.
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Affiliation(s)
- S Ragupathy
- Department of Physics, E.R.K. Arts and Science College, Erumiyampatti, Dharmapuri, 636 905, Tamil Nadu, India.
| | - A Priyadharsan
- Department of Physics, E.R.K. Arts and Science College, Erumiyampatti, Dharmapuri, 636 905, Tamil Nadu, India.
| | - Mohamad S AlSalhi
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, Riyadh, 11451, Saudi Arabia
| | - Sandhanasamy Devanesan
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, Riyadh, 11451, Saudi Arabia
| | - L Guganathan
- Department of Physics, Annamalai University, Annamalainagar, 608002, Tamil Nadu, India
| | - M Santhamoorthy
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38544, Republic of Korea
| | - S C Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38544, Republic of Korea.
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16
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Amani-Ghadim AR, Arefi-Oskoui S, Mahmoudi R, Sareshkeh AT, Khataee A, Khodam F, Seyed Dorraji MS. Improving photocatalytic activity of the ZnS QDs via lanthanide doping and photosensitizing with GO and g-C 3N 4 for degradation of an azo dye and bisphenol-A under visible light irradiation. CHEMOSPHERE 2022; 295:133917. [PMID: 35157881 DOI: 10.1016/j.chemosphere.2022.133917] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/23/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
In this research, insertion of Gd ions (2 wt%) into the crystalline lattice of the ZnS QDs enhanced the photocatalytic activity of the QDs. In addition, the influence of graphene oxide (GO) and graphitic carbon nitride (g-C3N4) was assessed on the photocatalytic activity of the ZnS QDs through degradation of acid red 14 (AR14) and bisphenol-A (BA) under visible light. Higher photocatalytic degradation efficiency (97.1% for AR14 and 67.4% for BA within 180 min) and higher total organic carbon (TOC) removal (67.1% for AR14 and 59.2% for BA within 5 h) was achieved in the presence of ZnS QDs/g-C3N4 compared with ZnS QDs/GO nanocomposite. Finally, the Gd-doped ZnS QDs were hybridized with g-C3N4 as optimal support to fabricate a potent visible-light-driven photocatalyst for the decomposition of organic contaminants. The maximum photocatalytic degradation of 99.1% and 80.5% were achieved for AR14 and BA, respectively, in the presence of Gd-doped ZnS QDs/g-C3N4 nanocomposite. The photosensitization mechanism was suggested for the improved photocatalytic activity of the ZnS QDs/GO, ZnS QDs/g-C3N4, and Gd-doped ZnS QDs/g-C3N4 nanocomposites under visible light.
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Affiliation(s)
- Ali Reza Amani-Ghadim
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Basic Science, Azarbaijan Shahid Madani University, P.O. Box 83714-161, Tabriz, Iran; New Technologies in the Environment Research Center, Azarbaijan Shahid Madani University, P.O. Box 83714-161, Tabriz, Iran.
| | - Samira Arefi-Oskoui
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Robab Mahmoudi
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Basic Science, Azarbaijan Shahid Madani University, P.O. Box 83714-161, Tabriz, Iran
| | - Abdolreza Tarighati Sareshkeh
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran; Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
| | - Fatemeh Khodam
- Research Laboratory of Environmental Protection Technology, Faculty of Chemistry, Department of Applied Chemistry, University of Tabriz, Iran
| | - Mir Saeed Seyed Dorraji
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
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17
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The Oxygen Vacancy Defect of ZnO/NiO Nanomaterials Improves Photocatalytic Performance and Ammonia Sensing Performance. NANOMATERIALS 2022; 12:nano12030433. [PMID: 35159778 PMCID: PMC8838695 DOI: 10.3390/nano12030433] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 01/27/2023]
Abstract
In this paper, ZnO/NiO composites rich in oxygen vacancies are prepared by the solvothermal method and reduction method. In the test, through the use of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscope (TEM), diffuse reflectance spectroscopy (DRS), photoluminescence spectroscopy (PL), and electron paramagnetic resonance (EPR), we effectively prove the existence of phase, morphology and oxygen vacancies in the material. Through the photocatalysis test and gas sensitivity test, it is found that 10% Ni doped OZN-10 has the best photocatalytic activity and gas sensitivity characteristics. The degradation rate of methylene blue (MB) was 98%. The gas sensitivity test shows that OZN-10 has good selectivity, good response performance (3000 ppm, 27,887%) and excellent response recovery time (response time: 50 s, recovery time: 5–7 s) for saturated NH3 gas at standard atmospheric pressure (101.325 KPa) and room temperature (25 °C). The synergistic effect of oxygen vacancy as the center of a trap and p–n heterojunction forming an electric potential field at the interface is explained, and the mechanism of improving photocatalysis and gas sensitivity is analyzed. This work will provide an innovative vision for dual-performance oxygen vacancy modification of heterojunctions through photocatalysis.
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18
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Preparation and Characterization of Cu and Al Doped ZnO Thin Films for Solar Cell Applications. CRYSTALS 2022. [DOI: 10.3390/cryst12020128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The Al- and Cu-doped ZnO nanostructured films in this study were deposited using a sputtering technique. Investigations based on X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, Hall effect measurements, and optical transmission spectroscopy was performed to analyze the structural, electrical, and optical characteristics of the prepared Al–ZnO and Cu–ZnO nanostructured films. The analyses show that doping results in enhanced conductivity as well as improved mobility in Al–ZnO and Cu–ZnO films in comparison to pure ZnO films. The Al- and Cu-doped ZnO films exhibited low resistivity (2.9 × 10−4 Ω cm for Al–ZnO and 1.7 × 10−4 Ω cm for Cu–ZnO) along with an average transmittance of around 80% in the visible spectrum. Moreover, the optical bandgaps of undoped ZnO, Al–ZnO, and Cu–ZnO nanostructures were observed as 3.3, 3.28, and 3.24 eV, respectively. Finally, solar cells were assembled by employing ZnO nanostructured thin films as photoelectrodes, resulting in efficiencies of 0.492% and 0.559% for Al–ZnO- and Cu–ZnO-based solar cells, respectively.
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19
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Ayanwale AP, Estrada-Capetillo BL, Reyes-López SY. Antifungal activity and cytotoxicity study of ZrO2-ZnO bimetallic nanoparticles. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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20
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Mohamed RM, Ismail AA, Kadi MW, Alresheedi AS, Mkhalid IA. Photocatalytic performance mesoporous Nd2O3 modified ZnO nanoparticles with enhanced degradation of tetracycline. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.11.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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21
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Verma S, Younis SA, Kim KH, Dong F. Anisotropic ZnO nanostructures and their nanocomposites as an advanced platform for photocatalytic remediation. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125651. [PMID: 33770683 DOI: 10.1016/j.jhazmat.2021.125651] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
In pursuit of advanced heterogeneous photocatalysts, ZnO has emerged as a promising option for solar-driven heterogeneous photocatalyst with many advantageous properties (e.g., optical band structure and electronic properties). However, as the efficacy of such system can also be limited by a number of demerits (e.g., fast recombination of charge carriers and limited photon absorption), considerable efforts are needed for its effective and practical scale-up. This article provides a detailed literature review of the synthesis and modification of ZnO nanostructures with tuned band structures and controllable morphologies for solar light harvesting. The potential of anisotropic ZnO nanostructures is also discussed with respect to the photocatalytic degradation of organic/inorganic water pollutants. Further, the role of various metal dopants is discussed for the enhancement of photocatalytic activity along with evaluation of their photocatalytic performances under UV-visible or solar irradiation. Finally, our discussions are expanded to describe the prospects of developed ZnO nano-photocatalysts for real-world applications with respect to light-harvesting efficiency and mechanical stability.
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Affiliation(s)
- Swati Verma
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Sherif A Younis
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea; Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
| | - Fan Dong
- Yangtze Delta Region Institute (Huzhou), & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313001, China; State Centre for International Cooperation on Designer Low-carbon and Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.
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22
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Continuous-Flow Photocatalytic Microfluidic-Reactor for the Treatment of Aqueous Contaminants, Simplicity, and Complexity: A Mini-Review. Symmetry (Basel) 2021. [DOI: 10.3390/sym13081325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Water pollution is a growing global issue; there are many approaches to treating wastewater, including chemical coagulation, physical adsorption, and chemical oxidation. The photocatalysis process has provided a solution for removing pollutants from wastewater, where the pair of the photoelectron and hole works through an asymmetric way to degrade the contaminants under UV irradiation. This method offers an alternative route for treating the pollutant with a lower energy cost, high efficiency, and fewer byproducts. A continuous-flow microfluidic reactor has a channel size from tens to thousands of micrometers, providing uniform irradiation and short diffusion length. It can enhance the conversion efficiency of photocatalysis due to the simple spatial symmetry inside the microreactor channel and among the individual channels. In addition, the bandgap of TiO2, ZnO, or other photocatalyst nanoparticles with symmetric crystal structure can be modified through doping or embedding. In this mini-review, a review of the reported continuous-flow photocatalytic microfluidic reactor is discussed from the perspective of both microreactor design and material engineering.
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Synthesis, photocatalytic and antidiabetic properties of ZnO/PVA nanoparticles. Sci Rep 2021; 11:11404. [PMID: 34075116 PMCID: PMC8169831 DOI: 10.1038/s41598-021-90846-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/13/2021] [Indexed: 11/25/2022] Open
Abstract
A series of ZnO and ZnO/poly(vinyl alcohol) (PVA) catalysts were prepared using sol–gel method. An X-ray diffraction analysis confirmed the existence of the wurtzite ZnO phase, and scanning electron microscopy (SEM) observation revealed the formation of spherical ZnO and ZnO/PVA nanoparticles. The decomposition of methylene blue (MB) and methyl orange (MO) induced by the synthesized pure ZnO and ZnO/PVA nanoparticles was studied under ultraviolet–visible irradiation. Among the catalysts evaluated, ZnO/5PVA was the most active in the decomposition of MB, whereas ZnO/7PVA was the most active catalyst in the decomposition of MO. Moreover, an investigation of the biological activity of pure ZnO and ZnO/PVA indicated that ZnO/5PVA exhibited the best performance in lowering the glucose level in diabetic rats.
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Venkatesh N, Aravindan S, Ramki K, Murugadoss G, Thangamuthu R, Sakthivel P. Sunlight-driven enhanced photocatalytic activity of bandgap narrowing Sn-doped ZnO nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:16792-16803. [PMID: 33398748 DOI: 10.1007/s11356-020-11763-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
In this paper, we grab to utilize one of the trending techniques with efficient implications in wastewater treatment of organic pollutants, the photocatalytic degradation method shining out in the research field. Herein, tin (Sn)-doped zinc oxide (ZnO) nanoparticles (NPs) (Sn/ZnO) with different doping concentrations (1, 2, 3, 4, and 5 wt%) were synthesized via a simple co-precipitation assisted method and later subjected for their physico-chemical, morphological, and optical characterization. In addition, photocatalytic activity as the concerned study was investigated as to record the different doping levels of Sn/ZnO to examine the effect of doping concentration in relation with the degradation efficiency. We know that the optical bandgap of pure ZnO was 3.26 eV while it tends to increase slightly upon increasing the doping concentration. In the present investigation, methylene blue (MB) dye was used as a model pollutant to evaluate the photocatalytic activity of Sn/ZnO photocatalysts under natural sunlight. Varied doping concentrations of Sn/ZnO were compared with different characterization techniques while XRD analysis shows up 4-Sn/ZnO with sharp peak at (1 0 1) plane with smaller grain size in comparison to other Sn/ZnO samples. The morphological recognition depicts the hexagonal structure with smaller size for 4-Sn/ZnO which offers more active sites with improved photocatalytic activity, higher surface area for the transportation of pollutants. Fluorescence spectra results revealed that Sn dopant suppresses the charge carrier recombination. The lower intensity of PL indicated reduced recombination rate, which resulted in enhancing the photocatalytic activity. To investigate the possible mechanism, kinetics and reusability studies were performed. The 4% Sn-doped ZnO nanoparticle concentration showed highest photocatalytic activity when compared with other doping levels.
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Affiliation(s)
- Nachimuthu Venkatesh
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamil Nadu, 641 046, India
- Materials Electrochemistry Division, CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, 630 003, India
| | - Santhan Aravindan
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamil Nadu, 641 046, India
| | - Karuppathevan Ramki
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamil Nadu, 641 046, India
| | - Govindhasamy Murugadoss
- Materials Electrochemistry Division, CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, 630 003, India.
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600 119, India.
| | - Rangasamy Thangamuthu
- Materials Electrochemistry Division, CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, 630 003, India
| | - Pachagounder Sakthivel
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamil Nadu, 641 046, India.
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25
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Abstract
In this paper, the photocatalytic degradation of glyphosate by zinc oxide (ZnO) photocatalysts doped with tungsten (W) was investigated under solar simulated light. The photocatalysts were successfully synthesized through a simple precipitation method and subsequently characterized by different techniques: Raman spectroscopy, UV–Vis, N2 adsorption at −196 °C, X-ray diffraction, and SEM analysis. In particular, all the prepared catalysts were characterized by a crystallite size of about 28 nm and a hexagonal wurtzite structure. After the W doping, the bandgap energy decreased from 3.22 of pure ZnO to 3.19 for doped ZnO. This allowed us to obtain good results in terms of glyphosate degradation and simultaneous mineralization under solar simulated lamps, making the process environmentally friendly and with almost zero energy costs. In particular, the best photocatalytic performance was obtained with 100 W-ZnO (prepared with 1.5 mol% of W). With this catalyst, after 180 min of exposure to solar simulated light, the glyphosate degradation and mineralization was equal to 74% and 30%, respectively. Furthermore, it has been shown that the best catalyst dosage was equal to 1.5 g/L. The study on the influence of pH evidenced that the best photocatalytic performances are obtained at spontaneous (neutral) pH conditions. Finally, to determine the main reactive species in the glyphosate oxidation, the effects of different radical scavengers were tested. The results evidenced that the glyphosate oxidation mechanism seems to be related mainly to the O2•− generated under simulated solar light irradiation, but also in minor part to h+.
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Saljooqi A, Shamspur T, Mostafavi A. Synthesis and photocatalytic activity of porous ZnO stabilized by TiO 2 and Fe 3O 4 nanoparticles: investigation of pesticide degradation reaction in water treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:9146-9156. [PMID: 33131041 DOI: 10.1007/s11356-020-11122-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
The present research studies the photocatalytic degradation of a pesticide using TiO2 and Fe3O4 nanoparticles supported on ZnO mesoporous (mZnO) substrate. Chlorpyrifos is an organophosphate pesticide with a C9H11Cl3NO3PS chemical formula. It is broadly utilized in agricultural fields to control product pests. The chlorpyrifos toxicity is acute and still dangerous to any aquatic organisms. The mZnO/TiO2-Fe3O4 material was characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), and N2 adsorption and desorption (Brunauer-Emmett-Teller; BET). In order to optimize three important operating parameters, i.e., chlorpyrifos concentration, mZnO/TiO2-Fe3O4 nanocomposite amount, and pH, for photocatalytic degradation of chlorpyrifos, response surface methodology (RSM) was applied. The central composite design (CCD) including 20 experiments was used to conduct experiments. The highest photodegradation performance of about 94.8% was obtained for a chlorpyrifos concentration of 8 ppm, a pH of 10, and an amount of mZnO/TiO2-Fe3O4 nanocomposite of 60 mg. The degradation of chlorpyrifos using mZnO/TiO2-Fe3O4 presented good performance (more than 94%). The photocatalytic reaction followed pseudo-first-order kinetics with a rate constant of 0.058 min-1 for chlorpyrifos degradation. The results propose that mZnO/TiO2-Fe3O4 nanocomposite is a suitable alternative for the degradation of chlorpyrifos in aqueous solution. The improved photocatalytic efficiency could be attributed to the effective separation of electron-hole pairs via a Z-scheme mechanism.
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Affiliation(s)
- Asma Saljooqi
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran.
- Young Research Society, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Tayebeh Shamspur
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Ali Mostafavi
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
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27
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Wang X, Wei J, Mao Y, Li W, Zhu X, Wang P, Zhu L. Sisal-like Sn2+ doped ZnO hierarchical structures: synthesis, growth mechanism, and their application in photocatalysis. CrystEngComm 2021. [DOI: 10.1039/d1ce00971k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Sisal-like Sn doped ZnO hierarchical structures were prepared by the hydrothermal method without employing templates or matrices. The architectures show enhanced light absorption, high photocatalytic properties, good stability and reusability.
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Affiliation(s)
- Xiaoyu Wang
- School of Energy and Materials, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, 201209, China
| | - Jiangang Wei
- School of Energy and Materials, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, 201209, China
| | - Yuqin Mao
- School of Energy and Materials, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, 201209, China
| | - Wenqin Li
- School of Energy and Materials, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, 201209, China
| | - Xiangrong Zhu
- School of Energy and Materials, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, 201209, China
| | - Pengwei Wang
- School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai, 201209, China
| | - LuPing Zhu
- School of Energy and Materials, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, 201209, China
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Zaheer Z, Albukhari SM. Fabrication of zinc/silver binary nanoparticles, their enhanced microbial and adsorbing properties. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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The Augmentation of Photocatalytic Efficiency Due to the Transition Effect Between Spherical Shape and Rod-Like Structure of Sn Levels in ZnO Nanoparticles. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01769-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Enhanced photocatalytic degradation performance of mono-disperse ZnS nano-flake on biocarbon sheets. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108142] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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31
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Bindhu M, Ancy K, Umadevi M, Esmail GA, Al-Dhabi NA, Arasu MV. Synthesis and characterization of zinc oxide nanostructures and its assessment on enhanced bacterial inhibition and photocatalytic degradation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 210:111965. [DOI: 10.1016/j.jphotobiol.2020.111965] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 06/12/2020] [Accepted: 07/15/2020] [Indexed: 10/23/2022]
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32
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Khan HR, Akram B, Aamir M, Malik MA, Tahir AA, Choudhary MA, Akhtar J. Electronic Tuning of Zinc Oxide by Direct Fabrication of Chromium (Cr) incorporated photoanodes for Visible-light driven Water Splitting Applications. Sci Rep 2020; 10:9707. [PMID: 32546696 PMCID: PMC7297714 DOI: 10.1038/s41598-020-66589-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 05/07/2020] [Indexed: 11/16/2022] Open
Abstract
Herein, we report the synthesis of Cr incorporated ZnO sheets arrays microstructures and construction of photoelectrode through a direct aerosol assisted chemical vapour deposition (AACVD) method. The as-prepared Cr incorporated ZnO microstructures were characterized by transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, powdered X-ray spectroscopy, X-ray photoelectron spectroscopy and UV-Vis diffused reflectance spectroscopy. The Cr incorporation in ZnO red shifted the optical band gap of as-prepared photoanodes. The 15% Cr incorporation in ZnO has shown enhanced PEC performance. The AACVD method provides an efficient in situ incorporation approach for the manipulation of morphological aspects, phase purity, and band structure of photoelectrodes for an enhanced PEC performance.
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Affiliation(s)
- Humaira Rashid Khan
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, 10250, (AJK), Pakistan
- School of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
- Environment and Sustainability Institute (ESI), University of Exeter Penryn, Cornwall, TR10 9FE, UK
| | - Bilal Akram
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Muhammad Aamir
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, 10250, (AJK), Pakistan
| | - Muhammad Azad Malik
- School of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Asif Ali Tahir
- Environment and Sustainability Institute (ESI), University of Exeter Penryn, Cornwall, TR10 9FE, UK
| | - Muhammad Aziz Choudhary
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, 10250, (AJK), Pakistan
| | - Javeed Akhtar
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, 10250, (AJK), Pakistan.
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33
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Homaeigohar S. The Nanosized Dye Adsorbents for Water Treatment. NANOMATERIALS 2020; 10:nano10020295. [PMID: 32050582 PMCID: PMC7075180 DOI: 10.3390/nano10020295] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/02/2020] [Accepted: 02/04/2020] [Indexed: 01/14/2023]
Abstract
Clean water is a vital element for survival of any living creature and, thus, crucially important to achieve largely and economically for any nation worldwide. However, the astonishingly fast trend of industrialization and population growth and the arisen extensive water pollutions have challenged access to clean water across the world. In this regard, 1.6 million tons of dyes are annually consumed. Thereof, 10%–15% are wasted during use. To decolorize water streams, there is an urgent need for the advanced remediation approaches involving utilization of novel materials and technologies, which are cost and energy efficient. Nanomaterials, with their outstanding physicochemical properties, can potentially resolve the challenge of need to water treatment in a less energy demanding manner. In this review, a variety of the most recent (from 2015 onwards) opportunities arisen from nanomaterials in different dimensionalities, performances, and compositions for water decolorization is introduced and discussed. The state-of-the-art research studies are presented in a classified manner, particularly based on structural dimensionality, to better illustrate the current status of adsorption-based water decolorization using nanomaterials. Considering the introduction of many newly developed nano-adsorbents and their classification based on the dimensionality factor, which has never been employed for this sake in the related literature, a comprehensive review will be presented.
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Affiliation(s)
- Shahin Homaeigohar
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
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34
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Photo catalytic degradation of methylene blue and methyl orange from aqueous solution using solar light onto chitosan bi-metal oxide composite. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-1980-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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35
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Din MI, Khalid R, Hussain Z. Recent Research on Development and Modification of Nontoxic Semiconductor for Environmental Application. SEPARATION & PURIFICATION REVIEWS 2020. [DOI: 10.1080/15422119.2020.1714658] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Rida Khalid
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Zaib Hussain
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
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36
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Kim EB, Abdullah, Ameen S, Akhtar MS, Shin HS. Environment-friendly and highly sensitive dichloromethane chemical sensor fabricated with ZnO nanopyramids-modified electrode. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.05.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Raji R, Gopchandran KG. Plasmonic photocatalytic activity of ZnO:Au nanostructures: Tailoring the plasmon absorption and interfacial charge transfer mechanism. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:345-357. [PMID: 30685723 DOI: 10.1016/j.jhazmat.2019.01.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
ZnO:Au nanostructures with tunable surface Plasmon band were synthesizedvia co-precipitation method. X-ray diffraction analysis, high resolution transmission electron microscopy and Raman spectra confirmed the hexagonal wurtzite phase for these ZnO:Au nanostructures with preferential growth along the (101) plane. The selective enhancement in the intensity of Raman band due to the excited free electrons of Au nanoparticles confirmed the incorporation of Au in ZnO matrix. Scanning electron microscopic images showed the transformation of morphology of these nanostructures from rod geometry to rose flower and then to marigold flower-like structures with increase in the Au content. Detailed investigations were carried out to understand the role of plasmons present in the ZnO:Au nanostructures on the photocatalytic degradation of sulforhodamine B under sunlight. It is found that ZnO:Au nanostructures with plasmon band in the close approximation of solar maximum ˜550 nm as catalysts exhibit ultra-fast degradation of the dye. This highly efficient photocatalytic activity of these nanostructures is attributed to the electron scavenging action of Au due to its high electronegativity, enhanced absorption of sunlight due to plasmons, the enhanced surface area of ZnO:Au nanostructures and the formation of Schottky barrier between the Au and ZnO interface. The reusability and photostability of these catalysts were tested through repetitive cycles and demonstrated that these nanostructures can form excellent reusable photocatalysts for the degradation of toxic organic waste in water.
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Affiliation(s)
- R Raji
- Department of Optoelectronics, University of Kerala, Thiruvananthapuram 695581, India
| | - K G Gopchandran
- Department of Optoelectronics, University of Kerala, Thiruvananthapuram 695581, India.
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38
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Alam U, Shah TA, Khan A, Muneer M. One-pot ultrasonic assisted sol-gel synthesis of spindle-like Nd and V codoped ZnO for efficient photocatalytic degradation of organic pollutants. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.11.048] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Awan F, Islam MS, Ma Y, Yang C, Shi Z, Berry RM, Tam KC. Cellulose Nanocrystal-ZnO Nanohybrids for Controlling Photocatalytic Activity and UV Protection in Cosmetic Formulation. ACS OMEGA 2018; 3:12403-12411. [PMID: 30411008 PMCID: PMC6217527 DOI: 10.1021/acsomega.8b01881] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/11/2018] [Indexed: 05/10/2023]
Abstract
A high-performance semiconductor zinc oxide (ZnO) on melamine formaldehyde-coated cellulose nanocrystals (MFCNCs) was synthesized and evaluated for its application in smart cosmetics. These ZnO@MFCNC hybrid nanostructures were evaluated for their in vitro sun protection factor performance and photocatalytic activity under simulated UV and solar radiation. The photodegradation kinetics of a model pigment (methylene blue) was fitted to the Langmuir-Hinshelwood model. A 4-fold increase in the photocatalytic activity of ZnO@MFCNCs was observed when compared to pure ZnO. This is associated with (i) increased specific surface area provided by the MFCNC template, (ii) confined surface energy and controlled growth of ZnO nanoparticles, and (iii) entrapment of photoinduced charge carriers in the pores of the core-shell MFCNC rod, followed by fast promotion of interfacial e-charge transfer to the surface of the catalyst. The present study demonstrates how an increase in photocatalytic activity can be engineered without the introduction of structural defects or band gap tailoring of the semiconductor. The aqueous-based ZnO@MFCNC hybrid system displayed attractive UV-absorption and photocatalytic characteristics, offering the conversion of this renewable and sustainable technology into intelligent cosmetic formulations.
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Affiliation(s)
- Fatima Awan
- Department
of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
| | - Muhammad Shahidul Islam
- Department
of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
| | - Yeyu Ma
- Department
of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
| | - Cindy Yang
- Department
of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
| | - Zengqian Shi
- Department
of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
| | - Richard M. Berry
- CelluForce
Inc., 625, Président-Kennedy
Avenue, Montreal, Quebec H3A 1K2, Canada
| | - Kam C. Tam
- Department
of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L
3G1, Canada
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40
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Efficient photocatalytic degradation of methylene blue in aqueous solution over flowerlike nanostructured MoS 2 -FeZnO staggered heterojunction under simulated solar-light irradiation. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.03.042] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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41
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Nguyen VN, Tran DT, Nguyen MT, Le TTT, Ha MN, Nguyen MV, Pham TD. Enhanced photocatalytic degradation of methyl orange using ZnO/graphene oxide nanocomposites. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3294-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Yurddaskal M, Yıldırım S, Dikici T, Yurddaskal M, Erol M, Aritman İ, Çelik E. ENHANCED PHOTOCATALYTIC PROPERTIES OF Sn-DOPED ZnO NANOPARTICLES BY FLAME SPRAY PYROLYSIS UNDER UV LIGHT IRRADIATION. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2017. [DOI: 10.18596/jotcsa.370748] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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43
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In-situ functionalization of mesoporous hexagonal ZnO synthesized in task specific ionic liquid as a photocatalyst for elimination of SO 2 , NO x , and CO. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.08.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Highly efficient Y and V co-doped ZnO photocatalyst with enhanced dye sensitized visible light photocatalytic activity. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.11.037] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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Golsefidi MA, Sarkhosh B. Preparation and characterization of rapid magnetic recyclable Fe3O4@SiO2@TiO2–Sn photocatalyst. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1058-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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46
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Bordbar M, Jafari S, Yeganeh-Faal A, Khodadadi B. Influence of different precursors and Mn doping concentrations on the structural, optical properties and photocatalytic activity of single-crystal manganese-doped ZnO. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-1035-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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47
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Mohamed El S, Fawzy S, Mohamed Ha S. Preparation of Modified Nanoparticles of Zinc Oxide for Removal of Organic and Inorganic Pollutant. ACTA ACUST UNITED AC 2016. [DOI: 10.3923/tasr.2017.1.9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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48
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Ummartyotin S, Tangnorawich B. Data on the growth of ZnO nanorods on Nylon 6 and photocatalytic activity. Data Brief 2016; 8:643-7. [PMID: 27437437 PMCID: PMC4939396 DOI: 10.1016/j.dib.2016.06.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/04/2016] [Accepted: 06/14/2016] [Indexed: 11/28/2022] Open
Abstract
ZnO was successfully synthesized by a conventional synthetic route using zinc nitrate as a source for ZnO formation. X-ray diffraction and thermogravimetric analysis revealed a crystal size of 66 nm of ZnO and a thermal stability of 500 °C. A small amount of ZnO particles was employed as the source for ZnO-rod growth on nylon 6 surfaces. Scanning electron microscope images were taken to evaluate the morphological properties of ZnO, which presented as a hexagonal needle-like shape. Preliminary evaluation of photocatalytic activity was performed through measurement of the degradation of methylene blue solution over 4 h.
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Affiliation(s)
- S Ummartyotin
- Advanced Functional Polymeric Materials Research Group, Faculty of Science and Technology, Thammasat University, Patumtani 12120, Thailand; Materials Research Center, In collaboration with HORIBA Scientific and Thammasat University, Patumtani 12120, Thailand
| | - B Tangnorawich
- Department of Physics, Faculty of Science and Technology, Thammasat University, Patumtani 12120, Thailand
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49
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Ummartyotin S, Pechyen C, Toommee S. Soft template-assisted synthesis of polyvinylpyrrolidone−functionalized nano-scale ZnO particles. RUSS J APPL CHEM+ 2016. [DOI: 10.1134/s10704272160010146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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Reddy PAK, Reddy PVL, Kwon E, Kim KH, Akter T, Kalagara S. Recent advances in photocatalytic treatment of pollutants in aqueous media. ENVIRONMENT INTERNATIONAL 2016; 91:94-103. [PMID: 26915711 DOI: 10.1016/j.envint.2016.02.012] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/07/2016] [Accepted: 02/07/2016] [Indexed: 05/07/2023]
Abstract
Photocatalysis can be an excellent solution for resolving the world's energy and environmental problems. It has a wide range of applications for the decontamination of diverse hazardous pollutants in aqueous media. Technological progress in this research field has been achieved toward the improvement of the solar sensitivity to enhance the efficiency of pollutant decontamination. As a result, various strategies have been introduced to upgrade photocatalytic performance with the modification of prototypical photocatalyst such as doping, dye sensitization, semiconductor coupling, mesoporous supports, single site, and nano-based catalysts. In this review, a brief survey is presented to describe those strategies based on the evaluation made against various pollutants (such as pharmaceuticals, pesticides, heavy metals, detergents, and dyes) in aqueous media.
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Affiliation(s)
- P Anil Kumar Reddy
- Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana 500076, India
| | - P Venkata Laxma Reddy
- Program in Environmental Science and Engineering, University of Texas El Paso, El Paso, TX 799038, USA
| | - Eilhann Kwon
- Department of Environment and Energy, Sejong University, Seoul 143-747, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, 222, Wangsimni-Ro, Seoul 133-791, Republic of Korea.
| | - Tahmina Akter
- Department of Chemistry, University of Texas at El Paso, El Paso, TX 79968, USA
| | - Sudhakar Kalagara
- Department of Chemistry, University of Texas at El Paso, El Paso, TX 79968, USA
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