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Bordin ER, Yamamoto FY, Filho NPM, Ramsdorf WA, Cestari MM. Ecotoxicity of doped zinc oxide nanoparticles: Perspectives on environmental safety. CHEMOSPHERE 2024; 358:142185. [PMID: 38685328 DOI: 10.1016/j.chemosphere.2024.142185] [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: 03/21/2024] [Revised: 04/22/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
Studies on the ecotoxicity of doped zinc oxide nanoparticles (ZnO NPs) are recent, with the first publications starting in 2010. In this sense, this is the first study that comprehensively reviews the ecotoxicological effects of ZnO NPs doped with lanthanide elements to fill this literature gap. This research explores a multifaceted question at the intersection of nanotechnology, toxicology, and environmental science. Different types of dopants commonly used for ZnO doping were investigated in this review, focusing on the ecotoxicological effects of lanthanides as dopants. Bacteria were the main class of organisms used in ecotoxicological studies, since antimicrobial activity of these nanomaterials is extensively explored to combat the imminent problem of resistant bacteria, in addition to enabling the safe use of these nanomaterials for biomedical applications. Doping appears to exhibit greater efficacy when compared to undoped ZnO NPs in terms of antimicrobial effects; however, it cannot be said that it has no impact on non-target organisms. An extensive examination of the literature also establishes the importance and need to evaluate the effects of doped ZnO NPs on organisms from different environmental compartments in order to identify their potential impacts. We underscore the dearth of research information regarding the environmental toxicity/ecotoxicity of doped ZnO nanoparticles across various ecological levels, thereby limiting the extrapolation of findings to humans or other complex models. Therefore, we emphasize the urgency of a multi-parameter assessment for the development of sanitary and environmentally safe nanotechnologies.
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Affiliation(s)
| | - Flávia Yoshie Yamamoto
- Department of Biochemistry and Molecular Biology, Federal University of Paraná (UFPR), Curitiba, PR, Brazil
| | | | - Wanessa Algarte Ramsdorf
- Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Curitiba, PR, Brazil
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Arif A, Zaman Y, Ishaque MZ, Siddique AB, Zaman H, Shahzad M, Ali D. Temperature-dependent heterojunction ternary nanocomposite: Assessing photocatalytic and antibacterial applications. Heliyon 2024; 10:e27550. [PMID: 38510018 PMCID: PMC10950596 DOI: 10.1016/j.heliyon.2024.e27550] [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: 12/19/2023] [Revised: 02/15/2024] [Accepted: 03/01/2024] [Indexed: 03/22/2024] Open
Abstract
Heterojunction nanocomposites (ZnO:NiO:CuO) were synthesized via a hydrothermal method and annealed at three different temperatures (400 °C, 600 °C, and 800 °C). The structural, optical, and electrical properties were examined by employing XRD, SEM, UV-Vis, FTIR, and LCR meter techniques to investigate the effects of annealing. Increasing the annealing temperature resulted in the nanocomposites (NCPs) exhibiting enhanced crystallinity, purity, optical properties, and improved electrical and dielectric behavior. The calculated crystalline sizes (Debye-Scherrer method) of the NCPs were determined to be 21, 26 and 34 nm for annealing temperature 400 °C, 600 °C, and 800 °C, respectively. The calculated bandgaps of synthesized samples were found in the range of 2.92-2.55 eV. This temperature-dependent annealing process notably influenced particle size, morphology, band-gap characteristics, and photocatalytic efficiency. EDX analysis affirmed the sample purity, with elemental peaks of Zn, Cu, Ni, and O. These NCPs demonstrated exceptional photocatalytic activity against various dyes solutions (Methyl orange (MO), Methylene Blue (MB), and mixed solution of dyes) under sunlight and also showed good antibacterial properties assessed by the disc diffusion method. Notably, the nanocomposite annealed at 400 °C exhibited a particularly high degradation efficiency by degrading 96% MB and 91% MO in just 90 min under sunlight.
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Affiliation(s)
- Alia Arif
- Department of Physics, University of Sargodha, Sargodha, 40100, Pakistan
| | - Yasir Zaman
- Department of Physics, University of Sargodha, Sargodha, 40100, Pakistan
| | | | - Abu Bakar Siddique
- Institute of Chemistry, University of Sargodha, Sargodha, 40100, Pakistan
| | - Hira Zaman
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 25120, Pakistan
| | - Muhammad Shahzad
- Department of Physics, University of Sargodha, Sargodha, 40100, Pakistan
- State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310058, PR China
| | - Daoud Ali
- Department of Zoology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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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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Satpathy SK, Panigrahi UK, Biswal R, Mallick P. Tuning the Optical Properties of ZnO Nanorods Through Gd Doping. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2022. [DOI: 10.1007/s40010-022-00798-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Jain SK, Pandit NA, Fazil M, Ali SA, Ahmed J, Alshehri SM, Mao Y, Ahmad T. Chemical fabrication, structural characterization and photocatalytic water splitting application of Sr-doped SnO 2nanoparticles. NANOTECHNOLOGY 2022; 33:355706. [PMID: 35580560 DOI: 10.1088/1361-6528/ac705a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Semiconductor photocatalysis has gained considerable attention in recent years due to their enabling nature to convert solar energy into fuels of renewable hydrocarbon. However, many of them suffer from some drawbacks like the inability to visible light irradiation and wide band gaps. Herein, we have synthesized monophasic strontium (Sr) doped SnO2nanoparticles by a cost-effective and environmental friendly hydrothermal method. As-synthesized nanoparticles showed rutile crystalline structure with irregular and rough cubical shape and no other elemental impurities. Sr-doped SnO2nanoparticles show a constant decrease in bandgap with increasing dopant concentration, which is estimated for excellent photocatalytic activity. The photocatalytic water splitting of as-prepared Sr-doped SnO2nanoparticles for H2generation shows a large influence of the increasing dopant concentration related to the narrowing bandgap on H2generation rate. Hence, the tunable bandgap with adjusted dopant concentration indicates that band gap tuning through doping for produced nanostructures may open up a new opportunities for photocatalytic and other optoelectronic applications.
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Affiliation(s)
- Sapan K Jain
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Nayeem Ahmad Pandit
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Mohd Fazil
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Syed Asim Ali
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Jahangeer Ahmed
- Department of Chemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Saad M Alshehri
- Department of Chemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Yuanbing Mao
- Department of Chemistry, Illinois Institute of Technology, 3105 South Dearborn Street, Chicago, IL 60616, United States of America
| | - Tokeer Ahmad
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
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Satpathy S, Panigrahi U, Panda S, Thiruvengadam V, Biswal R, Luyten W, Mallick P. Influence of Gd doping on morphological, toxicity and magnetic properties of ZnO nanorods. MATERIALS TODAY COMMUNICATIONS 2021; 28:102725. [DOI: 10.1016/j.mtcomm.2021.102725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
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