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Gebara RC, Abreu CBD, Rocha GS, Mansano ADS, Assis M, Moreira AJ, Santos MA, Pereira TM, Virtuoso LS, Melão MDGG, Longo E. Effects of ZnWO 4 nanoparticles on growth, photosynthesis, and biochemical parameters of the green microalga Raphidocelis subcapitata. CHEMOSPHERE 2024; 353:141590. [PMID: 38460844 DOI: 10.1016/j.chemosphere.2024.141590] [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: 12/20/2023] [Revised: 02/08/2024] [Accepted: 02/29/2024] [Indexed: 03/11/2024]
Abstract
Nanoparticles have applications in many sectors in the society. ZnWO4 nanoparticles (ZnWO4-NPs) have potential in the fabrication of sensors, lasers, and batteries, and in environmental remediation. Thus, these NPs may reach aquatic ecosystems. However, we still do not know their effects on aquatic biota and, to our knowledge, this is the first study that evaluates the toxicity of ZnWO4-NPs in a eukaryotic organism. We evaluated the toxicity of ZnWO4-NPs on the green microalga Raphidocelis subcapitata for 96 h, in terms of growth, cell parameters, photosynthesis, and biochemical analysis. Results show that most of Zn was presented in its particulate form, with low amounts of Zn2+, resulting in toxicity at higher levels. The growth was affected from 8.4 mg L-1, with 96h-IC50 of 23.34 mg L-1. The chlorophyll a (Chl a) content increased at 30.2 mg L-1, while the fluorescence of Chl a (FL3-H) decreased at 15.2 mg L-1. We observed increased ROS levels at 44.4 mg L-1. Regarding photosynthesis, the NPs affected the oxygen evolving complex (OEC) and the efficiency of the photosystem II at 22.9 mg L-1. At 44.4 mg L-1 the qP decreased, indicating closure of reaction centers, probably affecting carbon assimilation, which explains the decay of carbohydrates. There was a decrease of qN (non-regulated energy dissipation, not used in photosynthesis), NPQ (regulated energy dissipation) and Y(NPQ) (regulated energy dissipation via heat), indicating damage to the photoprotection system; and an increase in Y(NO), which is the non-regulated energy dissipation via heat and fluorescence. The results showed that ZnWO4-NPs can affect the growth and physiological and biochemical parameters of the chlorophycean R. subcapitata. Microalgae are the base of aquatic food chains, the toxicity of emerging contaminants on microalgae can affect entire ecosystems. Therefore, our study can provide some help for better protection of aquatic ecosystems.
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Affiliation(s)
- Renan Castelhano Gebara
- Center for the Development of Functional Materials (CDMF), Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, 13565-905, São Carlos, SP, Brazil.
| | - Cínthia Bruno de Abreu
- Center for the Development of Functional Materials (CDMF), Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, 13565-905, São Carlos, SP, Brazil
| | - Giseli Swerts Rocha
- Universitat Rovira i Virgili, Escola Tècnica Superior d'Enginyeria Química, Departament d'Enginyeria Química, Av. Països Catalans, 26, 43007, Tarragona, Spain
| | - Adrislaine da Silva Mansano
- Department of Hydrobiology (DHb), Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, 13565-905, São Carlos, SP, Brazil
| | - Marcelo Assis
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), Castelló, Spain
| | - Ailton José Moreira
- São Paulo State University (UNESP), Institute of Chemistry, 14800-060, Araraquara, SP, Brazil
| | | | - Thalles Maranesi Pereira
- Chemistry Institute, Universidade Federal de Alfenas (UNIFAL-MG), Gabriel Monteiro da Silva, 700, Centro, 37130-000, Alfenas, MG, Brazil
| | - Luciano Sindra Virtuoso
- Chemistry Institute, Universidade Federal de Alfenas (UNIFAL-MG), Gabriel Monteiro da Silva, 700, Centro, 37130-000, Alfenas, MG, Brazil
| | - Maria da Graça Gama Melão
- Department of Hydrobiology (DHb), Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, 13565-905, São Carlos, SP, Brazil
| | - Elson Longo
- Center for the Development of Functional Materials (CDMF), Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, 13565-905, São Carlos, SP, Brazil
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Khandelwal M, Choudhary S, Harish, Kumawat A, Misra KP, Rathore DS, Khangarot RK. Asterarcys quadricellulare algae-mediated copper oxide nanoparticles as a robust and recyclable catalyst for the degradation of noxious dyes from wastewater. RSC Adv 2023; 13:28179-28196. [PMID: 37753397 PMCID: PMC10518664 DOI: 10.1039/d3ra05254k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023] Open
Abstract
The present article explores the synthesis of copper oxide nanoparticles (CuO NPs) utilizing Asterarcys quadricellulare algal extract and examines the effect of various reaction parameters on the size and morphology of the nanoparticles. The samples were thoroughly characterized using XRD, FTIR, UV-vis, FE-SEM, and EDS techniques. The XRD analysis disclosed that the size of the synthesized nanoparticles could be controlled by adjusting the reaction parameters, ranging from 4.76 nm to 13.70 nm along the highest intensity plane (111). FTIR spectroscopy provided evidence that the phytochemicals are present in the algal extract. We have compared the photocatalytic activity of biologically and chemically synthesized CuO NPs and observed that biologically synthesized CuO NPs showed better photocatalytic activity than chemically synthesized CuO NPs. The biosynthesized CuO NPs (S8) demonstrated outstanding photodegradation activity towards four different organic dyes, namely BBY, BG, EBT, and MG, with degradation percentages of 95.78%, 98.02%, 94.15%, and 96.04%, respectively. The maximum degradation efficacy of 98.02% was observed for the BG dye at optimized reaction conditions and 60 min of visible light exposure. The kinetics of the photodegradation reaction followed the pseudo-first-order kinetic model, and the rate constant (k) was calculated using the Langmuir-Hinshelwood model for each dye. This study provides an efficient and sustainable approach for synthesizing CuO NPs with superior photocatalytic degradation efficiency towards organic dyes.
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Affiliation(s)
- Manisha Khandelwal
- Department of Chemistry, University College of Science, Mohanlal Sukhadia University Udaipur-313001 Rajasthan India
| | - Sunita Choudhary
- Department of Botany, University College of Science, Mohanlal Sukhadia University Udaipur-313001 Rajasthan India
| | - Harish
- Department of Botany, University College of Science, Mohanlal Sukhadia University Udaipur-313001 Rajasthan India
| | - Ashok Kumawat
- Department of Physics, School of Basic Sciences, Manipal University Jaipur Jaipur-303007 Rajasthan India
| | - Kamakhya Prakash Misra
- Department of Physics, School of Basic Sciences, Manipal University Jaipur Jaipur-303007 Rajasthan India
| | - Devendra Singh Rathore
- Department of Environmental Sciences, Mohanlal Sukhadia University Udaipur-313001 Rajasthan India
| | - Rama Kanwar Khangarot
- Department of Chemistry, University College of Science, Mohanlal Sukhadia University Udaipur-313001 Rajasthan India
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He H, Jiang J, Luo Z, Li D, Shi M, Sun H, Chen J, Chen C, Deng B, Yu C. Novel starfish-like inorganic/organic heterojunction for Cr(Ⅵ) photocatalytic reduction in neutral solution. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Ahmed AI, Kospa DA, Gamal S, Samra SE, Salah AA, El-Hakam SA, Awad Ibrahim A. Fast and simple fabrication of reduced graphene oxide-zinc tungstate nanocomposite with enhanced photoresponse properties as a highly efficient indirect sunlight driven photocatalyst and antibacterial agent. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113907] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Raji A, Vasu D, Pandiyaraj KN, Ghobeira R, De Geyter N, Morent R, Misra VC, Ghorui S, Pichumani M, Deshmukh RR, Nadagouda MN. Combinatorial effects of non-thermal plasma oxidation processes and photocatalytic activity on the inactivation of bacteria and degradation of toxic compounds in wastewater. RSC Adv 2022; 12:14246-14259. [PMID: 35558835 PMCID: PMC9093588 DOI: 10.1039/d1ra09337a] [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: 12/24/2021] [Accepted: 04/11/2022] [Indexed: 12/01/2022] Open
Abstract
The simultaneous presence of hazardous chemicals and pathogenic microorganisms in wastewater is tremendously endangering the environment and human health. Therefore, developing a mitigation strategy for adequately degrading toxic compounds and inactivating/killing microorganisms is urgently needed to protect ecosystems. In this paper, the synergetic effects of the photocatalytic activity of TiO2 and Cu–TiO2 nanoparticles (NPs) and the oxidation processes of non-thermal atmospheric pressure plasma (NTAPP) were comprehensively investigated for both the inactivation/killing of common water contaminating bacteria (Escherichia coli (E. coli)) and the degradation of direct textile wastewater (DTW). The photocatalytic NPs were synthesized using the hydrothermal method and further characterized employing field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), ultraviolet-visible diffuse reflection spectroscopy (UV-Vis DRS) and photoluminescence (PL). Results revealed the predominant presence of the typical anatase phase for both the flower-like TiO2 and the multipod-like Cu–TiO2 structures. UV-Vis DRS and PL analyses showed that the addition of Cu dopants reduced the bandgap and increased oxygen defect vacancies of TiO2. The inactivation of E. coli in suspension and degradation of DTW were then examined upon treating the aqueous media with various plasma alone and plasma/NPs conditions (Ar plasma, Ar + O2 plasma and Ar + N2 plasma, Ar plasma + TiO2 NPs and Ar plasma + Cu–TiO2 NPs). Primary and secondary excited species such as OH˙, O, H and N2* generated in plasma during the processes were recognized by in situ optical emission spectrometry (OES) measurements. Several other spectroscopic analyses were further employed to quantify some reactive oxygen species (ROS) such as OH, H2O2 and O3 generated during the processes. Moreover, the changes in the pH and electrical conductivity (EC) of the solutions were also assessed. The inactivation of bacteria was examined by the colony-forming unit (CFU) method after plating the treated suspensions on agar, and the degradation of organic compounds in DTW was further validated by measuring the total organic carbon (TOC) removal efficiency. All results collectively revealed that the combinatorial plasma-photocatalysis strategy involving Cu–TiO2 NPs and argon plasma jet produced higher concentrations of ROS and proved to be a promising one-step wastewater treatment effectively killing microorganisms and degrading toxic organic compounds. Contamination of water is a serious issue across the world. The proposed plasma synergetic treat has great potential to treat contaminated water in an environmentally friendly way.![]()
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Affiliation(s)
- A Raji
- Research Division of Plasma Processing (RDPP), Department of Physics, Sri Shakthi Institute of Engineering and Technology Coimbatore 641062 India +91-8012097173
| | - D Vasu
- Research Division of Plasma Processing (RDPP), Department of Physics, Sri Shakthi Institute of Engineering and Technology Coimbatore 641062 India +91-8012097173
| | - K Navaneetha Pandiyaraj
- Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science Coimbatore-641020 India
| | - Rouba Ghobeira
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University Ghent 9000 Belgium
| | - Nathalie De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University Ghent 9000 Belgium
| | - Rino Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University Ghent 9000 Belgium
| | | | - S Ghorui
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre Trombay Mumbai-400085 India
| | - M Pichumani
- Department of Nanoscience and Technology, Sri Ramakrishna Engineering College Coimbatore-641022 India
| | - R R Deshmukh
- Department of Physics, Institute of Chemical Technology Matunga Mumbai India
| | - Mallikarjuna N Nadagouda
- Department of Mechanical and Materials Engineering, Wright State University Dayton Ohio 45435 USA
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Wang D, Xie Y, Duan C, Feng Y, Yao J. Anchoring ZnIn 2S 4 nanosheets on ZSM-5 for boosting photocatalytic Cr( vi) reduction. NEW J CHEM 2022. [DOI: 10.1039/d2nj03829c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
ZSM-5@ZnIn2S4 is constructed for highly efficient photocatalytic Cr(vi) reduction.
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Affiliation(s)
- Duoying Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yuming Xie
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Chengyuan Duan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yi Feng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianfeng Yao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
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Synthesis, Characterization and Enhanced Visible Light Photocatalytic Performance of ZnWO4-NPs@rGO Nanocomposites. Catalysts 2021. [DOI: 10.3390/catal11121536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
ZnWO4 nanoparticles on reduced graphene oxide (ZnWO4-NPs@rGO) nanocomposites were synthesized using the hydrothermal method. Structural, morphological, optical, and photocatalytic studies of the ZnWO4-NPs@rGO nanocomposites were successfully investigated. Photo-catalytic performances of the ZnWO4-NPs@rGO nanocomposites were examined for the degradation of hazardous methylene blue dye (HMBD) in a neutral medium. ZnWO4-NPs@rGO nanocomposites show superior photo-catalytic performances over pure ZnWO4 nanoparticles. ZnWO4-NPs@rGO nanocomposites degrade ~98% dye while pure ZnWO4 nanoparticles degrade ~53% dye in 120 min. The prepared nanocomposites also show excellent recycled photo-catalytic efficiencies over multiple cycles.
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Zhou W, Ye J, Liu Z, Wang L, Chen L, Zhuo S, Liu Y, Chen W. High Near-Infrared Reflective Zn 1-xA xWO 4 Pigments with Various Hues Facilely Fabricated by Tuning Doped Transition Metal Ions (A = Co, Mn, and Fe). Inorg Chem 2021; 61:693-699. [PMID: 34894677 DOI: 10.1021/acs.inorgchem.1c03448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A series of novel transition metal ion-substituted Zn1-xAxWO4 (A = Co, Mn, and Fe, 0 < x ≤ 0.1) inorganic pigments with blue, yellow, brown, and pale green colors have been prepared by a solution combustion method and exhibit extremely high near-infrared reflectance (R > 85%). X-ray energy-dispersive spectroscopy analysis makes it clear that transition metal ions have already been incorporated into the host ZnWO4 lattice and do not change the lattice's initial wolframite structure. The optical absorption spectrum in the UV region of the ZnWO4 pigment calcined at 800 °C for 3 h is a ligand-to-metal charge transfer from O 2p nonbonding orbits to antibonding W 5d orbits. On account of the doping Co2+ (3d7), Mn2+ (3d5), and Fe3+ (3d5) transition metal ions, these chromophore ions have occupied the distorted octahedral site of Zn2+, leading to d-d transition and metal-to-metal charge transfer from the occupied 3d orbits of A2+ to unoccupied W 5d orbits in UV and visible ranges and generating some bright colors. Significantly, these inorganic pigments are also endowed with excellent thermal and chemical stability and are conducive to harsh working conditions. All of the analysis results have offered some design strategies for various colorful inorganic pigments with high near-infrared reflectance.
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Affiliation(s)
- Wenwu Zhou
- School of Materials Science and Engineering, Nanchang University, Nanchang 330031, PR China
| | - Jianyong Ye
- School of Materials Science and Engineering, Nanchang University, Nanchang 330031, PR China.,Jiangxi Sun-Nano Advanced Materials Technology Co. Ltd., Ganzhou 341000, PR China
| | - Zheng Liu
- Jiangxi Sun-Nano Advanced Materials Technology Co. Ltd., Ganzhou 341000, PR China
| | - Lizhong Wang
- Jiangxi Sun-Nano Advanced Materials Technology Co. Ltd., Ganzhou 341000, PR China
| | - Long Chen
- School of Materials Science and Engineering, Nanchang University, Nanchang 330031, PR China
| | - Sheng Zhuo
- School of Materials Science and Engineering, Nanchang University, Nanchang 330031, PR China
| | - Yue Liu
- School of Materials Science and Engineering, Nanchang University, Nanchang 330031, PR China.,Jiangxi Sun-Nano Advanced Materials Technology Co. Ltd., Ganzhou 341000, PR China.,Rare Earth Research Institute, Nanchang University, Nanchang 330031, PR China
| | - Weifan Chen
- School of Materials Science and Engineering, Nanchang University, Nanchang 330031, PR China.,Jiangxi Sun-Nano Advanced Materials Technology Co. Ltd., Ganzhou 341000, PR China.,Rare Earth Research Institute, Nanchang University, Nanchang 330031, PR China
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Highly efficient Ag2O loaded ZnO/Al2O3 coupled catalyst and its photocatalytic application. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ag/ZnO nano-structures synthesized by single-step solution combustion approach for the photodegradation of Cibacron Red and Triclopyr. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01943-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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He H, Luo Z, Yu C. Embellish zinc tungstate nanorods with silver chloride nanoparticles for enhanced photocatalytic, antibacterial and antifouling performance. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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