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Dhariwal N, Yadav P, Kumari M, Sanger A, Mishra YK, Kumar V, Thakur OP. Synergistic photocatalytic breakdown of azo dyes coupled with H 2 generation via Cr-doped α-Fe 2O 3 nanoparticles. Sci Rep 2024; 14:19916. [PMID: 39198475 PMCID: PMC11358315 DOI: 10.1038/s41598-024-65672-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 06/24/2024] [Indexed: 09/01/2024] Open
Abstract
This research addresses the scalable and inexpensive synthesis of α-Fe2O3via hydrothermal method without any precipitating agent as well as the enhancement of solar driven photocatalytic and H2 production through doping different chromium proportions. Competency of α-Fe2O3, both pure and doped with chromium, to function as photocatalyst was evaluated by its interaction with multiple dyes, which was real-time monitored utilizing (Internet of Things) IoT technique. By adding chromium, the rate of deterioration increased substantially from 15 to 94% for TB under sunlight in a remarkably brief 20 min by employing a very small amount of Cr0.8Fe1.2O3 (0.3 g/L), as evidenced by high degree of mineralization i.e. 85% and LC-HRMS. Also, the rapid breakdown of Trypan Blue (TB) was indicated by BOD5/COD ratio. Moreover, Cr-doped α-Fe2O3 displays excellent H2 production (~ 132 μmol h-1 g-1) as compared to α-Fe2O3. This work highlights the potential utilization of Cr-doped α-Fe2O3 for the purification of industrial waste water and green energy harvesting.
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Affiliation(s)
- Neeraj Dhariwal
- Nano Magnetic Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India
- Material Analysis and Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India
| | - Preety Yadav
- Nano Magnetic Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India
- Material Analysis and Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India
| | - Manju Kumari
- Nano Magnetic Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India
- Material Analysis and Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India
| | - Amit Sanger
- Nano Magnetic Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India
| | - Yogendra Kumar Mishra
- Mads Clausen Institute, SDU NanoSYD, University of Southern Denmark, Alsion 2, 6400, Sønderborg, Denmark
| | - Vinod Kumar
- Nano Magnetic Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India.
| | - O P Thakur
- Material Analysis and Research Laboratory, Department of Physics, NSUT, Dwarka, New Delhi, 110078, India
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2
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Mbuyazi TB, Ajibade PA. Photocatalytic Degradation of Organic Dyes by Magnetite Nanoparticles Prepared by Co-Precipitation. Int J Mol Sci 2024; 25:7876. [PMID: 39063118 PMCID: PMC11277247 DOI: 10.3390/ijms25147876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/06/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Iron oxide nanoparticles were synthesized by co-precipitation using three different iron salt stoichiometric mole ratios. Powder X-ray diffraction patterns revealed the inverse cubic spinel structure of magnetite iron oxide. Transmission electron microscopic images showed Fe3O4 nanoparticles with different shapes and average particle sizes of 5.48 nm for Fe3O4-1:2, 6.02 nm for Fe3O4-1.5:2, and 6.98 nm for Fe3O4-2:3 with an energy bandgap of 3.27 to 3.53 eV. The as-prepared Fe3O4 nanoparticles were used as photocatalysts to degrade brilliant green (BG), rhodamine B (RhB), indigo carmine (IC), and methyl red (MR) under visible light irradiation. The photocatalytic degradation efficiency of 80.4% was obtained from Fe3O4-1:2 for brilliant green, 61.5% from Fe3O4-1.5:2 for rhodamine B, and 77.9% and 73.9% from Fe3O4-2:3 for both indigo carmine and methyl red. This indicates that Fe3O4-2:3 is more efficient in the degradation of more than one dye. This study shows that brilliant green degrades most effectively at pH 9, rhodamine B degrades best at pH 6.5, and indigo carmine and methyl red degrade most efficiently at pH 3. Recyclability experiments showed that the Fe3O4 photocatalysts can be recycled four times and are photostable.
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Affiliation(s)
| | - Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa
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3
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Senthil Rathi B, Ewe LS, S S, S S, Yew WK, R B, Tiong SK. Recent trends and advancement in metal oxide nanoparticles for the degradation of dyes: synthesis, mechanism, types and its application. Nanotoxicology 2024; 18:272-298. [PMID: 38821108 DOI: 10.1080/17435390.2024.2349304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/30/2024] [Indexed: 06/02/2024]
Abstract
Synthetic dyes play a crucial role in our daily lives, especially in clothing, leather accessories, and furniture manufacturing. Unfortunately, these potentially carcinogenic substances are significantly impacting our water systems due to their widespread use. Dyes from various sources pose a serious environmental threat owing to their persistence and toxicity. Regulations underscore the urgency in addressing this problem. In response to this challenge, metal oxide nanoparticles such as titanium dioxide (TiO2), zinc oxide (ZnO), and iron oxide (Fe3O4) have emerged as intriguing options for dye degradation due to their unique characteristics and production methods. This paper aims to explore the types of nanoparticles suitable for dye degradation, various synthesis methods, and the properties of nanoparticles. The study elaborates on the photocatalytic and adsorption-desorption activities of metal oxide nanoparticles, elucidating their role in dye degradation and their application potential. Factors influencing degradation, including nanoparticle properties and environmental conditions, are discussed. Furthermore, the paper provides relevant case studies, practical applications in water treatment, and effluent treatment specifically in the textile sector. Challenges such as agglomeration, toxicity concerns, and cost-effectiveness are acknowledged. Future advancements in nanomaterial synthesis, their integration with other materials, and their impact on environmental regulations are potential areas for development. In conclusion, metal oxide nanoparticles possess immense potential in reducing dye pollution, and further research and development are essential to define their role in long-term environmental management.
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Affiliation(s)
- B Senthil Rathi
- Institute of Sustainable Energy, Universiti Tenaga Nasional (UNITEN), Kajang, Selangor, Malaysia
| | - Lay Sheng Ewe
- Institute of Sustainable Energy, Universiti Tenaga Nasional (UNITEN), Kajang, Selangor, Malaysia
| | - Sanjay S
- Department of Chemical Engineering, St. Joseph's College of Engineering, Chennai, India
| | - Sujatha S
- Department of Chemical Engineering, St. Joseph's College of Engineering, Chennai, India
| | - Weng Kean Yew
- School of Engineering and Physical Science, Heriot-Watt University Malaysia, Putrajaya, Malaysia
| | | | - Sieh Kiong Tiong
- Institute of Sustainable Energy, Universiti Tenaga Nasional (UNITEN), Kajang, Selangor, Malaysia
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Jeevarathinam M, Asharani IV. Synthesis of CuO, ZnO nanoparticles, and CuO-ZnO nanocomposite for enhanced photocatalytic degradation of Rhodamine B: a comparative study. Sci Rep 2024; 14:9718. [PMID: 38678108 DOI: 10.1038/s41598-024-60008-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 04/17/2024] [Indexed: 04/29/2024] Open
Abstract
Water pollution, arising from the presence of toxic dyes and chemicals, is a global challenge, urging the need for eco-friendly solutions in water decontamination. This study focused on the synthesis of copper oxide nanoparticles (CuO NPs), zinc oxide nanoparticles (ZnO NPs), and a bimetallic CuO-ZnO nanocomposite (CZ NC) through an environmentally friendly method employing Tragia involucrata L. leaf extract. Comprehensive analysis of structural and optical properties involved using various analytical techniques such as XRD, FT-IR, XPS, UV-DRS, PL, FE-SEM, EDAX, TEM, SAED, zeta potential, TGA, and BET. In comparison to pristine CuO and ZnO NPs, the CZ-NC demonstrated notably enhanced photocatalytic activity in the degradation of Rhodamine B dye (RhB). The optimum conditions for RhB degradation were found to be a pH of 9 and a catalyst dosage of 1 mg/mL for a concentration of 10 ppm. Under these conditions, CuO NPs, ZnO NPs, and CZ-NC demonstrated high efficiencies of 78%, 83%, and 96.1% respectively over 105 min. Through LC-HRMS, the identification of degradation products offered valuable insights into the pathway of photocatalytic degradation. Furthermore, toxicity analysis of intermediates, conducted through ECOSAR software, indicated the formation of non-toxic by-products (ChV/LC50/EC50 > 100) after the completion of the reaction. Furthermore, the recycled catalysts exhibited sustained stability for up to 4 cycles, with only a minor decrease in activity of up to 6.8%. This confirms their catalytic efficacy in purifying polluted water. This research significantly contributes to the progress of environmentally friendly nanocomposites, enhancing their efficacy in the realm of environmental remediation.
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Affiliation(s)
- M Jeevarathinam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - I V Asharani
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India.
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Asikainen K, Alatalo M, Huttula M, Barbiellini B, Assa Aravindh S. Understanding and optimizing the sensitization of anatase titanium dioxide surface with hematite clusters. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:295001. [PMID: 38574672 DOI: 10.1088/1361-648x/ad3ac0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 04/04/2024] [Indexed: 04/06/2024]
Abstract
The presence of hematite (Fe2O3) clusters at low coverage on titanium dioxide (TiO2) surface has been observed to enhance photocatalytic activity, while excess loading of hematite is detrimental. We conduct a comprehensive density functional theory study of Fe2O3clusters adsorbed on the anatase TiO2(101) surface to investigate the effect of Fe2O3on TiO2. Our study shows that TiO2exhibits improved photocatalytic properties with hematite clusters at low coverage, as evidenced by a systematic study conducted by increasing the number of cluster adsorbates. The adsorption of the clusters generates impurity states in the band gap improving light absorption and consequently affecting the charge transfer dynamics. Furthermore, the presence of hematite clusters enhances the activity of TiO2in the hydrogen evolution reaction. The Fe valence mixing present in some clusters leads to a significant increase in H2evolution rate compared with the fixed +3 valence of Fe in hematite. We also investigate the effect of oxygen defects and find extensive modifications in the electronic properties and local magnetism of the TiO2-Fe2O3system, demonstrating the wide-ranging effect of oxygen defects in the combined system.
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Affiliation(s)
- Kati Asikainen
- Nano and Molecular Systems Research Unit, University of Oulu, Oulu, FI-90014, Finland
| | - Matti Alatalo
- Nano and Molecular Systems Research Unit, University of Oulu, Oulu, FI-90014, Finland
| | - Marko Huttula
- Nano and Molecular Systems Research Unit, University of Oulu, Oulu, FI-90014, Finland
| | - B Barbiellini
- Lappeenranta-Lahti University of Technology (LUT), FI-53851 Lappeenranta, Finland
| | - S Assa Aravindh
- Sustainable Chemistry and MME, Faculty of Technology, University of Oulu, Oulu, FI-90014, Finland
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6
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Mohd Raub AA, Bahru R, Mohamed MA, Latif R, Mohammad Haniff MAS, Simarani K, Yunas J. Photocatalytic activity enhancement of nanostructured metal-oxides photocatalyst: a review. NANOTECHNOLOGY 2024; 35:242004. [PMID: 38484390 DOI: 10.1088/1361-6528/ad33e8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/14/2024] [Indexed: 04/04/2024]
Abstract
Nanostructured metal oxide semiconductors have emerged as promising nanoscale photocatalysts due to their excellent photosensitivity, chemical stability, non-toxicity, and biocompatibility. Enhancing the photocatalytic activity of metal oxide is critical in improving their efficiency in radical ion production upon optical exposure for various applications. Therefore, this review paper provides an in-depth analysis of the photocatalytic activity of nanostructured metal oxides, including the photocatalytic mechanism, factors affecting the photocatalytic efficiency, and approaches taken to boost the photocatalytic performance through structure or material modifications. This paper also highlights an overview of the recent applications and discusses the recent advancement of ZnO-based nanocomposite as a promising photocatalytic material for environmental remediation, energy conversion, and biomedical applications.
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Affiliation(s)
- Aini Ayunni Mohd Raub
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Selangor, Malaysia
| | - Raihana Bahru
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Selangor, Malaysia
| | - Mohd Ambri Mohamed
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Selangor, Malaysia
| | - Rhonira Latif
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Selangor, Malaysia
| | | | - Khanom Simarani
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, 50603, Kuala Lumpur, Malaysia
| | - Jumril Yunas
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Selangor, Malaysia
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Ali F, Nazir A, Sandhu ZA, Mehmood A, Raza MA, Hamayun M, Al-Sehemi AG. In situ fabrication of lanthanum-doped nickel oxide nanostructures using sol-gel for the degradation of rhodamine B. RSC Adv 2024; 14:4406-4415. [PMID: 38312718 PMCID: PMC10835344 DOI: 10.1039/d3ra08311j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/17/2024] [Indexed: 02/06/2024] Open
Abstract
Nanoscale science represents a thriving field of research for environmental applications within materials science. This study focuses on the fabrication of pure and La-doped nickel oxide (NiO) nanostructures with varying concentrations (1.0, 2.0, 3.0, and 4.0 wt%) of lanthanum using a facile sol-gel technique. This study explores the structural, morphological, chemical composition, and optical characteristics of the resulting pure and La-doped NiO nanostructures. Techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, UV-visible spectroscopy, and photoluminescence (PL) spectroscopy were used for material analysis. The observed trend in the energy band gap (Eg) values demonstrates a continuous decrease up to a La-doping concentration of 3 wt% in NiO. However, after this concentration (at 4.0 wt%), there is a noticeable increase in the energy band gap. At lower La-doping concentrations (up to 3 wt%), the incorporation of La ions into the NiO lattice may result in the formation of defects and oxygen vacancies. The presence of these imperfections may lead to new energy levels into the band gap, resulting in partial filling and a subsequent reduction in the band gap. Beyond a specific doping concentration (e.g., 3 wt%), excess La atoms may aggregate or cluster inside the NiO lattice. This agglomeration may cause structural distortions, strain, and disturbances in the crystal lattice, resulting in an increase in the band gap. The 3 wt% La-doped NiO sample demonstrated a notable 84% degradation efficiency of the synthesized nanomaterials coupled with its inherent stability, highlighting its dual attributes of effective pollutant removal and sustained performance. Furthermore, the cyclic stability of the optimized nanostructure is anticipated to be ∼77.42% after six cycles, suggesting promising future applications in photocatalysis.
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Affiliation(s)
- Furqan Ali
- Department of Physics, Faculty of Science, University of Sialkot Sialkot 51310 Pakistan
| | - Asma Nazir
- Department of Physics, Faculty of Science, University of Sialkot Sialkot 51310 Pakistan
| | - Zeshan Ali Sandhu
- Department of Chemistry, Faculty of Science, University of Gujrat, Hafiz Hayat Campus Gujrat 50700 Pakistan
| | - Arslan Mehmood
- Department of Chemistry, Faculty of Science, University of Gujrat, Hafiz Hayat Campus Gujrat 50700 Pakistan
| | - Muhammad Asam Raza
- Department of Chemistry, Faculty of Science, University of Gujrat, Hafiz Hayat Campus Gujrat 50700 Pakistan
| | - Muhammad Hamayun
- Department of Chemistry, Faculty of Science, University of Gujrat, Hafiz Hayat Campus Gujrat 50700 Pakistan
| | - Abdullah G Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS), King Khalid University Abha 61413 Saudi Arabia
- Department of Chemistry, College of Science, King Khalid University Abha 61413 Saudi Arabia
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8
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Eddy NO, Garg R, Garg R, Ukpe RA, Abugu H. Adsorption and photodegradation of organic contaminants by silver nanoparticles: isotherms, kinetics, and computational analysis. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 196:65. [PMID: 38112987 DOI: 10.1007/s10661-023-12194-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 11/30/2023] [Indexed: 12/21/2023]
Abstract
In view of the widespread and distribution of several classes and types of organic contaminants, increased efforts are needed to reduce their spread and subsequent environmental contamination. Although several remediation approaches are available, adsorption and photodegradation technologies are presented in this review as one of the best options because of their environmental friendliness, cost-effectiveness, accessibility, less selectivity, and wider scope of applications among others. The bandgap, particle size, surface area, electrical properties, thermal stability, reusability, chemical stability, and other properties of silver nanoparticles (AgNPS) are highlighted to account for their suitability in adsorption and photocatalytic applications, concerning organic contaminants. Literatures have been reviewed on the application of various AgNPS as adsorbent and photocatalyst in the remediation of several classes of organic contaminants. Theories of adsorption have also been outlined while photocatalysis is seen to have adsorption as the initial mechanism. Challenges facing the application of silver nanoparticles have also been highlighted and possible solutions have been presented. However, current information is dominated by applications on dyes and the view of the authors supports the need to strengthen the usefulness of AgNPS in adsorption and photodegradation of more classes of organic contaminants, especially emerging contaminants. We also encourage the simultaneous applications of adsorption and photodegradation to completely convert toxic wastes to harmless forms.
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Affiliation(s)
- Nnabuk Okon Eddy
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria.
| | - Rajni Garg
- Department of Applied Science and Humanities, Galgotias College of Engineering & Technology, Greater Noida, Uttar Pradesh, 201310, India
| | - Rishav Garg
- Department of Civil Engineering, Galgotias College of Engineering & Technology, Greater Noida, Uttar Pradesh, 201310, India
| | | | - Hillary Abugu
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria
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Sharma S, Devi B, Koiri D, Sharma K, Bhattacharyya KG, Devi A. Visible light photocatalytic degradation of methylene blue and rhodamine B over silver-doped titanium dioxide nanocomposites supported on Fuller's earth. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1362. [PMID: 37872312 DOI: 10.1007/s10661-023-11981-5] [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: 06/08/2023] [Accepted: 10/12/2023] [Indexed: 10/25/2023]
Abstract
Silver-doped-titanium dioxide nanoparticles supported on Fuller's earth, prepared by the sol-gel method, were characterized with XRD, TGA, zeta potential, SEM, EDX, TEM, XPS, photoluminescence and UV-DRS measurements. The material, Ag-TiO2-Fuller's earth (AgTF), was tested for photocatalytic activity concerning the degradation of rhodamine B (RhB) and methylene blue (MB) in aqueous solution under visible light irradiation with pH, catalyst dosage, and dye concentration as the process variables. The degradation kinetics indicated pseudo-first-order kinetics with rate constant of (i) 0.55 min-1with 0.12 gL-1AgTF loading, 10-5 M MB at pH 9, and (ii) 0.53 min-1 with 0.08 g L-1 AgTF loading, 5 × 10-5 M RhB at pH 8. The methylene blue degradation was maximum (98.66%) for AgTF loading of 0.12 g L-1 while the maximum RhB degradation (96.34%) was attained with AgTF loading of 0.08 g L-1. With 5 × 10-6M MB concentration, the degradation achieved was 98% in 45 min and 100% in 60 min. One hundred per cent degradation of the dye, RhB (1 × 10-6 M) could be achieved in 30 min with 0.08 g L-1 AgTF at pH 8. The use of Fuller's earth, a cheap, abundant and large surface area support, increases the adsorbability of the dye on the catalyst surface and hence promotes the degradation. The catalyst could be removed easily from the reaction mixture and reused for up to five cycles without any significant decrease in activity. Scavengers such as triethanolamine (TEOA), p-benzoquinone (BQ) and isopropyl alcohol (IPA) were utilized to get some insight into the photocatalysis mechanism.
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Affiliation(s)
- Sudeshna Sharma
- Environmental Chemistry Laboratory, Resource Management and Environment Section, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, 781035, India
| | - Bhaswati Devi
- Environmental Chemistry Laboratory, Resource Management and Environment Section, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, 781035, India
| | - Dibyajyoti Koiri
- Environmental Chemistry Laboratory, Resource Management and Environment Section, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, 781035, India
| | - Khanindra Sharma
- Environmental Chemistry Laboratory, Resource Management and Environment Section, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, 781035, India
| | | | - Arundhuti Devi
- Environmental Chemistry Laboratory, Resource Management and Environment Section, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, 781035, India.
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Garg P, Mohapatra L, Poonia AK, Kushwaha AK, Adarsh KNVD, Deshpande U. Single Crystalline α-Fe 2O 3 Nanosheets with Improved PEC Performance for Water Splitting. ACS OMEGA 2023; 8:38607-38618. [PMID: 37867698 PMCID: PMC10586280 DOI: 10.1021/acsomega.3c05726] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/22/2023] [Indexed: 10/24/2023]
Abstract
We report the photoelectrochemical (PEC) performance of a densely grown single crystalline hematite (α-Fe2O3) nanosheet photoanode for water splitting. Unlike expensive ITO/FTO substrates, the sheets were grown on a piece of pure Fe through controlled thermal oxidation, which is a facile low cost and one-step synthesis route. The sheets grow with a widest surface parallel to basal plane (0001). Iron oxide formed on Fe consisting of layer structure α-Fe2O3-Fe3O4-Fe is elucidated from GIXRD and correlated to spectral features observed in Raman and UV-vis spectroscopy. The top α-Fe2O3 nanosheet layer serves as a photoanode, whereas the conducting Fe3O4 layer serves to transport photogenerated electrons to the counter electrode through its back contact. Time-resolved photoluminescence (TRPL) measurements revealed significantly prolonged carrier lifetime compared to that of bulk. Compared to the thin film of α-Fe2O3 grown on the FTO substrate, ∼3 times higher photocurrent density (0.33 mA cm-2 at 1.23 VRHE) was achieved in the nanosheet sample under solar simulated AM 1.5 G illumination. The sample shows a bandgap of 2.1 eV and n-type conductivity with carrier density 9.59 × 1017 cm-3. Electrochemical impedance spectroscopy (EIS) measurements reveal enhanced charge transport properties. The results suggest that nanosheets synthesized by the simple method yield far better PEC performance than the thin film on the FTO substrate. The anodic shifts of flat band potential, delayed electron-hole recombination, and growth direction parallel to the highly conducting basal plane (0001) being some of the contributing factors to the higher photocurrent observed in the NS photoanode are discussed. Characterizations carried out before and after the PEC reaction show excellent stability of the nanosheets in an alkaline electrochemical environment.
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Affiliation(s)
- Parveen Garg
- UGC-DAE
Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452001, Madhya Pradesh, India
| | - Lokanath Mohapatra
- Department
of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore 453552, India
| | - Ajay Kumar Poonia
- Department
of Physics, Indian Institute of Science
Education and Research Bhopal, Bhopal 462066, India
| | - Ajay Kumar Kushwaha
- Department
of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore 453552, India
| | | | - Uday Deshpande
- UGC-DAE
Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452001, Madhya Pradesh, India
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Villegas-Fuentes A, Rosillo-de la Torre A, Vilchis-Nestor AR, Luque PA. Improvement of the optical, photocatalytic and antibacterial properties of ZnO semiconductor nanoparticles using different pepper aqueous extracts. CHEMOSPHERE 2023; 339:139577. [PMID: 37480957 DOI: 10.1016/j.chemosphere.2023.139577] [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: 05/08/2023] [Revised: 07/08/2023] [Accepted: 07/17/2023] [Indexed: 07/24/2023]
Abstract
Peppers are fruits that grow on plants of the genus Capsicum and are popular for their use in gastronomy as a condiment and for their anti-inflammatory and anti-cancer properties due to their phytocompounds such as flavonoids, polyphenols, or alkaloids. Semiconductor zinc oxide (ZnO) nanoparticles (NPs) were synthesized using a green approach employing natural aqueous extracts of several varieties of peppers (jalapeño, morita, and ghost). The obtained NPs were characterized by different techniques, and their photocatalytic and antibacterial activity was studied. The signal at 620 cm-1 in the FTIR spectra belonging to the Zn-O bond, the appearance of the main peaks of a hexagonal wurtzite structure in the XRD pattern, and the characteristic signals in the UV-Vis spectra confirm the correct formation of ZnO NPs. The photocatalytic activity was analyzed against Methylene Blue (MB), Rhodamine B (RB), and Methyl Orange (MO) under UV and sunlight. All syntheses were able to degrade more than 93% of the pollutants under UV light. Antibacterial assays were performed against gram-positive and gram-negative bacteria. All syntheses exhibited antibacterial activity against all bacteria and maximum growth inhibition against Bacillus subtilis. The prominent results demonstrate that natural aqueous extracts obtained from peppers can be used to synthesize ZnO NPs with photocatalytic and biomedical applications.
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Affiliation(s)
- A Villegas-Fuentes
- Universidad Autónoma de Baja California, Facultad de Ingeniería, Arquitectura y Diseño, C.P. 22860, Ensenada, B.C, Mexico
| | - A Rosillo-de la Torre
- Universidad de Guanajuato, División de Ciencias e Ingeniería, Loma del Bosque #103, Col. Lomas del campestre, C.P. 37150, León, Gto, Mexico
| | - A R Vilchis-Nestor
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Toluca, Mexico
| | - P A Luque
- Universidad Autónoma de Baja California, Facultad de Ingeniería, Arquitectura y Diseño, C.P. 22860, Ensenada, B.C, Mexico.
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Lima-Faria JMD, Silva VCD, Chen LC, Martinez DST, Sabóia-Morais SMTD. Co-exposure of iron oxide nanoparticles with glyphosate herbicides in Poecilia reticulata: Fish liver damages is reversible during iron accumulation and elimination period. CHEMOSPHERE 2023; 328:138590. [PMID: 37028726 DOI: 10.1016/j.chemosphere.2023.138590] [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: 02/05/2023] [Revised: 03/31/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
Iron oxide nanoparticles (IONPs) are advanced materials for water remediation technologies. It is therefore relevant to evaluate the cellular and tissue behavior of fishes in response to IONPs and their associations with agrochemicals such as glyphosate (GLY) and glyphosate-based herbicides (GBHs). Iron accumulation, tissue integrity and lipid distribution in the hepatocytes of Poecilia reticulata (guppy) were investigated in a control group and in groups exposed to soluble iron ions, namely IFe (0.3 mgFe/L), IONPs (0.3 mgFe/L), and IONPs, associated with GLY (0.65 mg/L), GBHs 0.65 mgGLY/L (IONPs + GBH1), and 1.30 mgGLY/L (IONPs + GBH2), for 7, 14, and 21 days, followed by an equal period of postexposure in clean reconstituted water. The results showed that the accumulation of iron was greater in the subjects in the IONP treatment group when compared to that in the Ife group. In addition, the subjects in the mixtures with GBHs had a greater accumulation of iron than those in the IONP + GLY treatment group. Tissue integrity assessments demonstrated an intense accumulation of lipids, formation of necrotic zones and leukocyte infiltrates in all the treated groups, with a greater quantity of lipids in the animals treated with IONP + GLY and IFe. During postexposure, the results indicated an elimination of iron in all treated groups, reaching the same level as the control group, throughout the 21 days postexposure. Thus, the damage caused to animal livers by IONP mixtures is reversible, providing promising results for the development of safe environmental remediation practices using nanoparticles.
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Affiliation(s)
- João Marcos de Lima-Faria
- Laboratory of Cellular Behavior, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, Brazil.
| | - Victória Costa da Silva
- Laboratory of Cellular Behavior, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Lee Chen Chen
- Radiobiology of Microorganisms and Mutagenesis Laboratory, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Diego Stéfani Teodoro Martinez
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
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13
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You J, Li J, Wang Z, Devanesan S, Farhat K, Kim W, Sivarasan G, Zhang H. Improving the efficiency of metal ions doped Fe 2O 3 nanoparticles: Photocatalyst for removal of organic dye from aqueous media. CHEMOSPHERE 2023:139229. [PMID: 37354953 DOI: 10.1016/j.chemosphere.2023.139229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/31/2023] [Accepted: 06/13/2023] [Indexed: 06/26/2023]
Abstract
The metal ion-based nanocomposite photocatalysts were accepted to exhibit a wide range of photocatalytic and biological applications. In this paper, we synthesize bare Fe2O3, 1 wt% metal (Ag, Co, and Cu) doped Fe2O3 nanoparticles (NPs) using a simple hydrothermal process and wet impregnation method. The as-prepared nanomaterials crystalline structure, shape, optical characteristics, and elemental composition were determined by using X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Scanning electron microscope (SEM), Energy-dispersive X-ray (EDS) and Transmission electron microscopy (TEM) techniques. Furthermore, the synthesized nanocomposites were utilized as a photosensitizer for the degradation of reactive red (RR120) and orange II (O-II) dyes under sunlight irradiation. The synthesized 1 wt% Ag-Fe2O3 (AgF) NPs samples exhibit a more exceptional catalytic performance of RR120 and O-II dyes (98.32%) within 120 min than the existing Fe2O3, 1 wt% Co-Fe2O3, and Cu-Fe2O3 NPs. The effect of parameters such as exciton formation under solar irradiation, charge recombination rate, and surface charge availability. The metal oxide-doped nanocomposite economic relevance is revealed by their long-term durability and recyclability in photodegradation reactions. The photocatalytic investigations show that the active species O2∙-, HO∙ and h+ play an important role in the dye degradation process. This research might pave the opportunity for the sustainable development of greater photocatalysts for photodegradation and a wide range of environmental applications.
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Affiliation(s)
- Junhua You
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
| | - Jingjing Li
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
| | - Zhiwei Wang
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
| | - Sandhanasamy Devanesan
- Department of Physics and Astronomy, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Karim Farhat
- Department of Urology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Woong Kim
- Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea
| | - Ganesan Sivarasan
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, 41349, Taiwan.
| | - Hangzhou Zhang
- Department of Orthopedics; Joint Surgery and Sports Medicine, First Affiliated Hospital of China Medical University, Shenyang 110001, China.
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Gündel SDS, Favarin FR, Machado ÉF, Druzian DM, Dos Santos C, Brum LFW, da Silva AS, da Silva WL, Ourique AF. Photocatalytic degradation of Rhodamine B dye by nanostructured powder systems containing nanoencapsulated curcumin or ascorbic acid and ascorbyl palmitate liposomal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27555-4. [PMID: 37178297 DOI: 10.1007/s11356-023-27555-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 05/07/2023] [Indexed: 05/15/2023]
Abstract
Due to inadequate treatment and incorrect management, wastewater with dyes has a great toxic potential as an environmental liability, representing a major concern. In this context, this work aims to investigate the potential application of nanostructured powdery systems (nanocapsules and liposomes) in the photodegradation of Rhodamine B (RhB) dye, under UV and visible irradiation. Curcumin nanocapsules and liposomes containing ascorbic acid and ascorbyl palmitate were prepared, characterized, and dried using the spray drying technique. The drying processes of the nanocapsule and the liposome showed yields of 88% and 62%, respectively, and, after aqueous resuspension of the dry powders, it was possible to recover the nanocapsule size (140 nm) and liposome size (160 nm). The dry powders were characterized by Fourier transform infrared spectroscopy (FTIR), N2 physisorption at 77 K, X-ray diffraction (XRD), and diffuse reflectance spectroscopy (DRS-UV). Under UV irradiation, 64.8% and 58.48% of RhB were removed with nanocapsules and liposomes, respectively. While under visible radiation, nanocapsules and liposomes were able to degrade 59.54% and 48.79% of RhB, respectively. Under the same conditions, commercial TiO2 showed degradation of 50.02% (UV) and 42.14% (visible). After 5 cycles of reuse, there was a decrease of about 5% for dry powders under UV irradiation and 7.5% under visible irradiation. Therefore, the nanostructured systems developed have potential application in heterogeneous photocatalysis for the degradation of organic pollutants, such as RhB, as they demonstrated superior photocatalytic performance to commercial catalysts (nanoencapsulated curcumin > ascorbic acid and ascorbyl palmitate liposomal > TiO2).
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Affiliation(s)
- Samanta da Silva Gündel
- Laboratory of Nanotechnology, Universidade Franciscana (UFN), Santa Maria, RS, 97010-032, Brazil
| | - Fernanda Reis Favarin
- Laboratory of Nanotechnology, Universidade Franciscana (UFN), Santa Maria, RS, 97010-032, Brazil
| | - Éricles Forrati Machado
- Laboratory of Nanotechnology, Universidade Franciscana (UFN), Santa Maria, RS, 97010-032, Brazil
- Nanoscience Graduate Program, Universidade Franciscana (UFN), Santa Maria, RS, 97010-491, Brazil
| | - Daniel Moro Druzian
- Nanoscience Graduate Program, Universidade Franciscana (UFN), Santa Maria, RS, 97010-491, Brazil
| | - Cristiane Dos Santos
- Chemistry Institute, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, 91501-970, Brazil
| | - Luis Fernando Wentz Brum
- Chemistry Institute, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, 91501-970, Brazil
| | - Aleksandro Schafer da Silva
- Department of Animal Science, Universidade Do Estado de Santa Catarina (UDESC), Chapecó, SC, 89815-630, Brazil
| | | | - Aline Ferreira Ourique
- Laboratory of Nanotechnology, Universidade Franciscana (UFN), Santa Maria, RS, 97010-032, Brazil.
- Nanoscience Graduate Program, Universidade Franciscana (UFN), Santa Maria, RS, 97010-491, Brazil.
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15
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Joshi NC, Upadhyay S, Kumar N, S C, Juyal A. Synthesis and photocatalytic activity of highly efficient NiFe 2O 4/r-GO based photocatalyst. J DISPER SCI TECHNOL 2023. [DOI: 10.1080/01932691.2023.2178455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
| | - Sanjay Upadhyay
- Division of Research & Innovation, Uttaranchal University, Dehradun, India
| | - Niraj Kumar
- Division of Research & Innovation, Uttaranchal University, Dehradun, India
| | - Chatana S
- Department of Mechanical Engineering, ATME College of Engineering, Mysore, India
| | - Ashima Juyal
- Division of Research & Innovation, Uttaranchal University, Dehradun, India
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16
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Muşat V, Crintea (Căpăţână) L, Anghel EM, Stănică N, Atkinson I, Culiţă DC, Baroiu L, Țigău N, Cantaragiu Ceoromila A, Botezatu (Dediu) AV, Carp O. Ag-Decorated Iron Oxides-Silica Magnetic Nanocomposites with Antimicrobial and Photocatalytic Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4452. [PMID: 36558305 PMCID: PMC9783173 DOI: 10.3390/nano12244452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Nanotechnology offers unlimited possibilities for creating effective hybrid materials, which combine functional performance in environment depollution and antimicrobial defense with a lack of toxicity, biocompatibility, biodegradability, and natural availability. This paper presents the silver effect on photocatalytic and antibacterial activities of double-coated iron oxide nanoparticles (NPs), Fe3O4@SiO2/ZnO-Ag. The structural, morphological, and textural information of the, core-shell iron oxides-based superparamagnetic nanoparticles (IOMNPs) decorated with 5% Ag by ultrasound-assisted synthesis were evaluated by scanning electron microscopy with energy dispersive spectroscopy (SEM-EDX), X-ray diffraction, Raman spectroscopy, and Brunauer-Emmett-Teller physisorption measurements. Although two synthesis temperatures of 95 and 80 °C were used for the co-precipitated iron oxide cores, the XRD patterns revealed the formation of a single magnetite, Fe3O4, phase. The sorption-photocatalytic activities under dark and UV irradiation encountered a maximum removal efficiency of the MB (90.47%) for the Fe3O4@SiO2/ZnO-Ag sample with iron oxide core obtained at 80 °C. The rate constant for the second-order kinetics was 0.0711 min-1 for 2 h, and the correlation coefficient R2 closed to unity. Two samples with Ag-decorated hybrid SiO2/ZnO shell and hierarchically interconnected porous structure with large surface area (328.8 and 342.5 m2g-1) exhibited the best disk diffusion antimicrobial activity against four microorganisms, especially gram-positive Staphylococcus aureus.
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Affiliation(s)
- Viorica Muşat
- Laboratory of Chemical Nanotechnologies-Center of Nanostructures and Functional Materials LNC-CNMF, Dunărea de Jos” University of Galati, 47 Domnească Street, 800008 Galati, Romania
| | - Lenuța Crintea (Căpăţână)
- Laboratory of Chemical Nanotechnologies-Center of Nanostructures and Functional Materials LNC-CNMF, Dunărea de Jos” University of Galati, 47 Domnească Street, 800008 Galati, Romania
| | - Elena-Maria Anghel
- Institute of Physical Chemistry “Ilie Murgulescu” of Romanian Academy, Spl. Independenţei 202, 060021 Bucharest, Romania
| | - Nicolae Stănică
- Institute of Physical Chemistry “Ilie Murgulescu” of Romanian Academy, Spl. Independenţei 202, 060021 Bucharest, Romania
| | - Irina Atkinson
- Institute of Physical Chemistry “Ilie Murgulescu” of Romanian Academy, Spl. Independenţei 202, 060021 Bucharest, Romania
| | - Daniela Cristina Culiţă
- Institute of Physical Chemistry “Ilie Murgulescu” of Romanian Academy, Spl. Independenţei 202, 060021 Bucharest, Romania
| | - Liliana Baroiu
- Faculty of Medicine and Pharmacy, “Dunărea de Jos” University of Galati, 47 Domnească Street, 800008 Galati, Romania
| | - Nicolae Țigău
- Department of Physical-Chemistry and Environment, “Dunărea de Jos” University of Galati, 47 Domnească Street, 800008 Galati, Romania
| | - Alina Cantaragiu Ceoromila
- Department of Applied Sciences, Cross-Border Faculty, “Dunărea de Jos” University of Galati, 47 Domnească Street, 800008 Galati, Romania
| | - Andreea-Veronica Botezatu (Dediu)
- Department of Physical-Chemistry and Environment, “Dunărea de Jos” University of Galati, 47 Domnească Street, 800008 Galati, Romania
| | - Oana Carp
- Institute of Physical Chemistry “Ilie Murgulescu” of Romanian Academy, Spl. Independenţei 202, 060021 Bucharest, Romania
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17
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Pulsed-Laser Induced Photolysis of Synthesizing Magnetic Fe3O4 Nanoparticles for Visible-Light Photocatalysis. Catalysts 2022. [DOI: 10.3390/catal12111459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Our report is the first example describing the successful synthesis of magnetic Fe3O4 nanoparticles (NPs), for which we used pulsed-laser induced photolysis (PLIP). Compared with the previous method of using pulsed-laser ablation of a target, or strong energy of pulsed-laser light to decompose precursors in generating a solvated-ion reaction, the PLIP method used here is dependent on hydrogen peroxide (H2O2) to generate a hydrolysis reaction. Energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) were used to demonstrate the Fe3O4 crystalline structure of the synthesized NPs. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images revealed that the average size of the NPs was about 20–50 nm. Regarding their magnetic characteristics, the synthesized NPs exhibited a saturation magnetization of 5.62 emu/g, remanence of 3.82 emu/g, and coercive force of 49.8 Oe. The photocatalytic experiments confirmed that the synthesized magnetic Fe3O4 NPs have visible light-degradation effects based on their ability to photocatalytically degrade methylene blue (MB). The MB degradation efficiency was 60–80% under white-light exposure for 180 min. This study presents a new route for synthesizing magnetic Fe3O4 NPs for their potential use in photocatalysis.
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18
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Raza Q, Bibi I, Majid F, Kamal S, Ata S, Ghafoor A, Arshad MI, Al-Mijalli SH, Nazir A, Iqbal M. Solar light-based photocatalytic removal of CV and RhB dyes using Bi and Al doped SrFe12O19NPs and antibacterial properties. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Ajay S, Panicker JS, Manjumol K, Subramanian PP. Photocatalytic activity of biogenic silver nanoparticles synthesized using Coleus Vettiveroids. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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López-Goerne TM, Padilla-Godínez FJ, Castellanos M, Perez-Davalos LA. Catalytic nanomedicine: a brief review of bionanocatalysts. Nanomedicine (Lond) 2022; 17:1131-1156. [DOI: 10.2217/nnm-2022-0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Catalytic nanomedicine is a research area and source of disruptive technology that studies the application of bionanocatalysts (organically functionalized mesoporous nanostructured materials with catalytic properties) in diverse areas such as disinfection, tissue regeneration in chronic wounds and oncology. This paper reviews the emergence of catalytic nanomedicine in 2006, its basic principles, main achievements and future perspectives, as well as giving a summary of the knowledge gaps that need to be addressed to exploit the full potential of this novel discipline. This review intends to foster knowledge dissemination regarding catalytic nanomedicine, and to encourage further research to elucidate the mechanisms and possible applications of these nanomaterials.
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Affiliation(s)
- Tessy M López-Goerne
- Laboratory of Nanotechnology & Nanomedicine, Department of Health Care, Autonomous Metropolitan University-Xochimilco, Mexico City, 04960, Mexico
- Department of Molecular Neuropathology, Institute of Cell Physiology, National Autonomous University of Mexico, Mexico City, 04510, Mexico
| | - Francisco J Padilla-Godínez
- Laboratory of Nanotechnology & Nanomedicine, Department of Health Care, Autonomous Metropolitan University-Xochimilco, Mexico City, 04960, Mexico
- Department of Molecular Neuropathology, Institute of Cell Physiology, National Autonomous University of Mexico, Mexico City, 04510, Mexico
| | - Mariana Castellanos
- Faculty of Medicine, National Autonomous University of Mexico, Mexico City, 04510, Mexico
| | - Luis A Perez-Davalos
- Laboratory of Nanotechnology & Nanomedicine, Department of Health Care, Autonomous Metropolitan University-Xochimilco, Mexico City, 04960, Mexico
- Faculty of Medicine, National Autonomous University of Mexico, Mexico City, 04510, Mexico
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21
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Yuniar G, Saputera WH, Sasongko D, Mukti RR, Rizkiana J, Devianto H. Recent Advances in Photocatalytic Oxidation of Methane to Methanol. Molecules 2022; 27:molecules27175496. [PMID: 36080265 PMCID: PMC9457830 DOI: 10.3390/molecules27175496] [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: 07/26/2022] [Revised: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 11/28/2022] Open
Abstract
Methane is one of the promising alternatives to non-renewable petroleum resources since it can be transformed into added-value hydrocarbon feedstocks through suitable reactions. The conversion of methane to methanol with a higher chemical value has recently attracted much attention. The selective oxidation of methane to methanol is often considered a “holy grail” reaction in catalysis. However, methanol production through the thermal catalytic process is thermodynamically and economically unfavorable due to its high energy consumption, low catalyst stability, and complex reactor maintenance. Photocatalytic technology offers great potential to carry out unfavorable reactions under mild conditions. Many in-depth studies have been carried out on the photocatalytic conversion of methane to methanol. This review will comprehensively provide recent progress in the photocatalytic oxidation of methane to methanol based on materials and engineering perspectives. Several aspects are considered, such as the type of semiconductor-based photocatalyst (tungsten, titania, zinc, etc.), structure modification of photocatalyst (doping, heterojunction, surface modification, crystal facet re-arrangement, and electron scavenger), factors affecting the reaction process (physiochemical characteristic of photocatalyst, operational condition, and reactor configuration), and briefly proposed reaction mechanism. Analysis of existing challenges and recommendations for the future development of photocatalytic technology for methane to methanol conversion is also highlighted.
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Affiliation(s)
- Gita Yuniar
- Research Group on Energy and Chemical Engineering Processing System, Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
| | - Wibawa Hendra Saputera
- Research Group on Energy and Chemical Engineering Processing System, Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Center for Catalysis and Reaction Engineering, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Research Center for New and Renewable Energy, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Correspondence: ; Tel.: +62-821-1768-6235
| | - Dwiwahju Sasongko
- Research Group on Energy and Chemical Engineering Processing System, Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Research Center for New and Renewable Energy, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
| | - Rino R. Mukti
- Center for Catalysis and Reaction Engineering, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Research Center for Nanoscience and Nanotechnology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
| | - Jenny Rizkiana
- Research Group on Energy and Chemical Engineering Processing System, Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Center for Catalysis and Reaction Engineering, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
| | - Hary Devianto
- Research Group on Energy and Chemical Engineering Processing System, Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Research Center for New and Renewable Energy, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
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22
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Belessiotis GV, Falara PP, Ibrahim I, Kontos AG. Magnetic Metal Oxide-Based Photocatalysts with Integrated Silver for Water Treatment. MATERIALS 2022; 15:ma15134629. [PMID: 35806752 PMCID: PMC9267654 DOI: 10.3390/ma15134629] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/19/2022] [Accepted: 06/27/2022] [Indexed: 01/02/2023]
Abstract
In this review, the most recent advances in the field of magnetic composite photocatalysts with integrated plasmonic silver (Ag) is presented, with an overview of their synthesis techniques, properties and photocatalytic pollutant removal applications. Magnetic attributes combined with plasmonic properties in these composites result in enhancements for light absorption, charge-pair generation-separation-transfer and photocatalytic efficiency with the additional advantage of their facile magnetic separation from water solutions after treatment, neutralizing the issue of silver’s inherent toxicity. A detailed overview of the currently utilized synthesis methods and techniques for the preparation of magnetic silver-integrated composites is presented. Furthermore, an extended critical review of the most recent pollutant removal applications of these composites via green photocatalysis technology is presented. From this survey, the potential of magnetic composites integrated with plasmonic metals is highlighted for light-induced water treatment and purification. Highlights: (1) Perspective of magnetic properties combined with plasmon metal attributes; (2) Overview of recent methods for magnetic silver-integrated composite synthesis; (3) Critical view of recent applications for photocatalytic pollutant removal.
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Affiliation(s)
- George V. Belessiotis
- National Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, 15310 Athens, Greece; (G.V.B.); (I.I.)
- School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece;
| | - Pinelopi P. Falara
- School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece;
| | - Islam Ibrahim
- National Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, 15310 Athens, Greece; (G.V.B.); (I.I.)
- Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
| | - Athanassios G. Kontos
- National Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, 15310 Athens, Greece; (G.V.B.); (I.I.)
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens, 15780 Athens, Greece
- Correspondence:
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23
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Raghavendra VB, Sindhu R, Alshiekheid M, Sabour A, Krishnan R, Lan Chi NT, Pugazhendhi A. Green fabrication of silver nanoparticles using Chloroxylon swietenia leaves and their application towards dye degradation and food borne pathogens. Food Chem Toxicol 2022; 165:113192. [PMID: 35640854 DOI: 10.1016/j.fct.2022.113192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/19/2022] [Accepted: 05/27/2022] [Indexed: 11/19/2022]
Abstract
Green synthesized silver nanoparticles (AgNPs) are becoming an important candidate for bioremediation and biomedical applications. But in recent trends, more focus is given towards degradation of dyes and application against food pathogens. The synthesis of efficient AgNPs depends on the selection of potential biological material for synthesis. Therefore, in the present study, AgNPs were synthesized using Chloroxylon swietenia. The synthesis AgNPs was confirmed by the formation of dark brown precipitate. Further physicochemical characterization performed using XRD, FTIR, SEM and DLS showed the formation of crystalline structure, presence of functional group from the C. swietenia, dispersed spherical and rod-shaped nanoparticles (6.9 nm) and possess good stability due to the negative partial charges. The dye degrading efficacy of Chloroxylon swietenia mediated synthesized AgNPs (C-AgNPs) was >95%, 90% and >90% tested against Congo red (CR), Coomassie blue (CB) and crystal violet (CV) dye, respectively withing 24 h of treatment under optimum conditions. The antibacterial activity of C-AgNPs (10 mg/mL) was analysed against Staphylococcus nepalensis (3.03 ± 0.35 cm), Staphylococcus gallinarum (2.96 ± 0.15 cm), Bacillus subtilis (2.86 ± 0.23 cm), Enterococcous faecalis (2.8 ± 0.30 cm) and Pseudomonas stuteria (2.06 ± 0.25 cm) using Disc diffusion method, Minimum inhibitory concentration (MIC) and Minimum bactericidal activity (MBC). Therefore, the present study is the first and foremost report on C-AgNPs application as dye degrading and antibacterial agents against food dyes and pathogens. This will provide a major strategy to unveil the complications in food and packaging industries worldwide.
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Affiliation(s)
- Vinay B Raghavendra
- Teresian College Research Centre, Teresian College, Siddarthanagar, Mysore, 570011, India
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam, Kerala, India
| | - Maha Alshiekheid
- Department of Botany and Microbiology, College of Science, King SaudnUniversity, PO Box -2455, Riyadh -11451, Saudi Arabia
| | - Amal Sabour
- Department of Botany and Microbiology, College of Science, King SaudnUniversity, PO Box -2455, Riyadh -11451, Saudi Arabia
| | - Ramakrishnan Krishnan
- Department of Business, Harrisburg University of Science and Technology, Harrisburg, PA, 17101, USA
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam.
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam.
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Phang SJ, Lee J, Wong VL, Tan LL, Chai SP. Synergistic effects of the hybridization between boron-doped carbon quantum dots and n/n-type g-C 3N 4 homojunction for boosted visible-light photocatalytic activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:41272-41292. [PMID: 35088270 DOI: 10.1007/s11356-021-18253-0] [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: 08/24/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Dye wastewater has raised a prevalent environmental concern due to its ability to prevent the penetration of sunlight through water, thereby causing a disruption to the aquatic ecosystem. Carbon quantum dots (CQDs) are particularly sought after for their highly tailorable photoelectrochemical and optical properties. Simultaneously, graphitic carbon nitride (g-C3N4) has gained widespread attention due to its suitable band gap energy as well as excellent chemical and thermal stabilities. Herein, a novel boron-doped CQD (BCQD)-hybridized g-C3N4 homojunction (CN) nanocomposite was fabricated via a facile hydrothermal route. The optimal photocatalyst sample, 1-BCQD/CN (with a 1:3 mass ratio of boron to CQD) accomplished a Rhodamine B (RhB, 10 mg/L) degradation efficiency of 96.8% within 4 h under an 18 W LED light irradiation. The kinetic rate constant of 1.39 × 10-2 min-1 achieved by the optimum sample was found to be 3.6- and 2.8-folds higher than that of pristine CN and un-doped CQD/CN, respectively. The surface morphology, crystalline structure, chemical composition and optical properties of photocatalyst samples were characterized via TEM, FESEM-EDX, XRD, FTIR, UV-Vis DRS and FL spectrometer. Based on the scavenging tests, it was revealed that the photogenerated holes (h+), superoxide anions (∙O2-) and hydroxyl radicals (∙OH) were the primary reactive species responsible for the photodegradation process. Overall, the highly efficient 1-BCQD/CN composite with excellent photocatalytic activity could provide a cost-effective and robust means to address the increasing concerns over global environmental pollution.
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Affiliation(s)
- Sue Jiun Phang
- School of Engineering and Physical Sciences, Heriot-Watt University Malaysia, Jalan Venna P5/2, Precinct 5, 62200, Putrajaya, Malaysia
| | - Jiale Lee
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Voon-Loong Wong
- School of Engineering and Physical Sciences, Heriot-Watt University Malaysia, Jalan Venna P5/2, Precinct 5, 62200, Putrajaya, Malaysia
| | - Lling-Lling Tan
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia.
| | - Siang-Piao Chai
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
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Vaidh S, Parekh D, Patel D, Vishwakarma GS. Leachate treatment potential of nanomaterial based assemblies: a systematic review on recent development. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:3285-3300. [PMID: 35704411 DOI: 10.2166/wst.2022.168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Rapid development of the population has brought about a serious problem of waste generation and management. Open dumping and land filling are two of the preferred options for waste management and treatment. As a consequence of this, the accumulation of leachates has become one of the concerns for environmental sustainability. In this regard, various treatment methodologies have been developed in recent decades. Among them, the nanomaterial-based approaches are the emerging ones in the current scenario due to their various unique properties. Furthermore, nanomaterial-based assemblies (i.e., nanomaterials combined with microbes, chemical catalysts, enzymes, and so on) have been introduced as a novel modification for leachate treatment. This work, therefore, has been dedicated to comprehensively reviewing all nanomaterial based leachate treatment techniques. In this regard, the first part of this review will discuss the nano catalyst, nano adsorbent along with their synthesis and mechanistic view of pollutant removal potential. In the second part, the nanomaterial-based microbial conjugates applied in the leachate treatments have been discussed. Apart from this, various other nanomaterial-based methods have been discussed in the third part of the review. Hence this review is providing an insight of all the recent developments pertaining to the nano material based leachate treatment techniques.
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Affiliation(s)
- Sachin Vaidh
- Department of Biological Science and Biotechnology, Institute of Advanced Research, Gandhinagar, Gujarat 382426, India E-mail:
| | - Dharni Parekh
- Department of Biological Science and Biotechnology, Institute of Advanced Research, Gandhinagar, Gujarat 382426, India E-mail:
| | - Dhara Patel
- Department of Biological Science and Biotechnology, Institute of Advanced Research, Gandhinagar, Gujarat 382426, India E-mail:
| | - Gajendra Singh Vishwakarma
- Department of Biological Science and Biotechnology, Institute of Advanced Research, Gandhinagar, Gujarat 382426, India E-mail:
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Role of plant (tulasi, neem and turmeric) extracts in defining the morphological, toxicity and catalytic properties of silver nanoparticles. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109476] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Patar M, Moyon NS, Sinha T. Biogenic Fabrication of Silver Nanoparticles: A Potent and Ideal Candidate for Wastewater Treatment and Water Disinfection. ChemistrySelect 2022. [DOI: 10.1002/slct.202103374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Madhumita Patar
- Department Of Chemistry National Institute Of Technology Silchar Assam 788010 India
| | | | - Tanur Sinha
- School of Chemistry University of Bristol Cantock's close Bristol BS81TS UK
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Oviedo LR, Muraro PCL, Pavoski G, Espinosa DCR, Ruiz YPM, Galembeck A, Rhoden CRB, da Silva WL. Synthesis and characterization of nanozeolite from (agro)industrial waste for application in heterogeneous photocatalysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:3794-3807. [PMID: 34396477 DOI: 10.1007/s11356-021-15815-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/01/2021] [Indexed: 06/13/2023]
Abstract
The pollution of wastewater with dyes has become a serious environmental problem around the world. In this context, the work aims to synthesize and characterize a supported nanocatalyst (NZ-180) from rice husk (RH) and alum sludge (AS) incorporating silver (AgNPs@NZ-180) and titanium nanoparticles (TiNPs@NZ-180) for Rhodamine B (RhB) dye degradation, under UV and visible irradiation. Central rotatable composite design (CRCD) was used to determine ideal conditions, using nanocatalyst and dye concentration such as input variables and degradation percentage like response variable. Samples were characterized by XRD, SEM-EDS, N2 porosimetry, DLS, and zeta potential analyses. TiNPs@NZ-180 showed the best photocatalytic activity (62.62 and 50.82% under UV and visible irradiation, respectively). Specific surface area has increased from 35.90 to 418.90 m2 g-1 for NZ-180 and TiNPs@NZ-180, respectively. Photocatalytic performance of TiNPs@NZ-180 has reduced to 8 and 10% after 5 cycles under UV and visible light irradiation. Ideal conditions found by CRCD were 2.75 g L-1 and 20 mg L-1 for nanocatalyst and RhB concentrations, respectively. Therefore, (agro)industrial waste present such an alternative material for application in the removal of wastewater with dyes, which helps in the reduction of the impact of chemicals/pollutants on human and animal health.
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Affiliation(s)
| | | | - Giovani Pavoski
- Polytechnical School of Chemical Engineering, Universidade de São Paulo, Rua do Lago, 250 -, São Paulo, 05508-080, Brazil
| | - Denise Crocce Romano Espinosa
- Polytechnical School of Chemical Engineering, Universidade de São Paulo, Rua do Lago, 250 -, São Paulo, 05508-080, Brazil
| | - Yolice Patricia Moreno Ruiz
- Department of Fundamental Chemistry (DQF), Academic Center of Vitória (CAV), Universidade Federal de Pernambuco (UFPE), Recife, PE, Brazil
| | - André Galembeck
- Department of Fundamental Chemistry (DQF), Academic Center of Vitória (CAV), Universidade Federal de Pernambuco (UFPE), Recife, PE, Brazil
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Janthima R, Siri S. Cellular biogenesis of metal nanoparticles by water velvet ( Azolla pinnata): different fates of the uptake Fe 3+ and Ni 2+ to transform into nanoparticles. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2021; 49:471-482. [PMID: 34092161 DOI: 10.1080/21691401.2021.1931262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 05/13/2021] [Indexed: 10/21/2022]
Abstract
Plants can produce cellular metal nanoparticles (NPs) from the uptake of metal ions, but the mechanism remains unclear. This work reported the new insight into different fates of iron (Fe) and nickel (Ni) ions to transform into the metal NPs in Azolla pinnata roots. After exposing to ferric nitrate, nickel nitrate, and a combination of both for 12 h, the energy dispersive X-ray fluorescence analysis indicated the efficient uptakes of both metal ions in the roots and their transports into the shoots. Transmission electron microscope images revealed the accumulation of spherical FeNPs, but not NiNPs, near the cell wall and cell membrane, and inside vacuoles and multivesicular bodies in cortical and vascular cells at the root tips. The energy dispersive X-ray analysis suggested that the formation of metal NPs depended on the sufficient concentration of metal ions localized in the roots. FeNPs were identified to ɑ-Fe2O3 and Fe3O4 by selected area electron diffraction analysis. The formation of FeNPs might involve the increase of superoxide dismutase activity. This work is the first report about the cellular biogenesis of metal NPs in plant roots that likely depends on cellular metal content and involves the reducing activity of antioxidant enzymes.
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Affiliation(s)
- Ratima Janthima
- School of Biology, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Sineenat Siri
- School of Biology, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
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Das S, Chowdhury A. Recent advancements of g-C 3N 4-based magnetic photocatalysts towards the degradation of organic pollutants: a review. NANOTECHNOLOGY 2021; 33:072004. [PMID: 34731840 DOI: 10.1088/1361-6528/ac3614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Heterogeneous photocatalysis premised on advanced oxidation processes has witnessed a broad application perspective, including water purification and environmental remediation. In particular, the graphitic carbon nitride (g-C3N4), an earth-abundant metal-free conjugated polymer, has acquired extensive application scope and interdisciplinary consideration owing to its outstanding structural and physicochemical properties. However, several issues such as the high recombination rate of the photo-generated electron-hole pairs, smaller specific surface area, and lower electrical conductivity curtail the catalytic efficacy of bulk g-C3N4. Another challenging task is separating the catalyst from the reaction medium, limiting their reusability and practical applications. Therefore, several methodologies are adopted strategically to tackle these issues. Attention is being paid, especially to the magnetic nanocomposites (NCs) based catalysts to enhance efficiency and proficient reusability property. This review summarizes the latest progress related to the design and development of magnetic g-C3N4-based NCs and their utilization in photocatalytic systems. The usefulness of the semiconductor heterojunctions on the catalytic activity, working mechanism, and degradation of pollutants are discussed in detail. The major challenges and prospects of using magnetic g-C3N4-based NCs for photocatalytic applications are highlighted in this report.
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Affiliation(s)
- Suma Das
- Organic Electronics & Sensor Laboratory, Department of Physics, National Institute of Technology Silchar, Assam 788010, India
| | - Avijit Chowdhury
- Organic Electronics & Sensor Laboratory, Department of Physics, National Institute of Technology Silchar, Assam 788010, India
- Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
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31
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Chuy GP, Muraro PCL, Viana AR, Pavoski G, Espinosa DCR, Vizzotto BS, da Silva WL. Green Nanoarchitectonics of Silver Nanoparticles for Antimicrobial Activity Against Resistant Pathogens. J Inorg Organomet Polym Mater 2021; 32:1213-1222. [PMID: 34840542 PMCID: PMC8608851 DOI: 10.1007/s10904-021-02162-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/15/2021] [Indexed: 12/15/2022]
Abstract
Antimicrobial resistance represents a serious concern to public health, being responsible for hospital infections, affecting mainly immunosuppressed patients. Thus, nanotechnology appears as an alternative to solve this problem, through the application of metallic nanoparticles with antimicrobial activity. The present work aims to synthesize and characterize AgNPs from Klebsiella pneumoniae (AgNPs-KP) and Aloe vera extract (AgNPs-AV), evaluating the antimicrobial activity against Klebsiella pneumoniae carbapenemase (KpC) and the cytotoxicity in the L929 cell line. AgNPs were prepared by the biosynthetic method using Klebsiella pneumoniae and were characterized by XRD, FTIR and SEM–EDS. Antimicrobial activity was tested using the MIC and MBC. The cytotoxicity was evaluated by the MTT method and neutral red. The production of ROS and nitrogen RNS tests were performed in the L929 cell line. Thus, it was possible to confirm the production of AgNPs-KP, through morphological, structural and elemental analysis. AgNPs from Klebsiella pneumoniae had potent antimicrobial activity in low concentration against antimicrobial resistant pathogens with MIC 9.76 µg mL−1 and MBC 9.06 µg mL−1. Moreover, AgNPs-KP in concentrations of 10, 30 and 100 µg mL−1 did not show cytotoxic properties for the L929 fibroblast, where only the cytotoxic effect was observed in high concentrations (300 µg mL−1). AgNPs-KP did not produce ROS about the analyzed concentrations and RNS production was only in the highest concentration of 3000 µg mL−1. Therefore, AgNPs biosynthesized by Klebsiella pneumoniae have potential medical applicability as a promising antimicrobial agent, using a simple and low-cost method, correlating nanomedicine as nanostructured materials.
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Affiliation(s)
| | | | | | - Giovani Pavoski
- Polytechnical School of Chemical Engineering, University of the São Paulo, São Paulo, SP Brazil
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32
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Novel static magnetic field effects on green chemistry biosynthesis of silver nanoparticles in Saccharomyces cerevisiae. Sci Rep 2021; 11:20078. [PMID: 34635721 PMCID: PMC8505620 DOI: 10.1038/s41598-021-99487-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 09/13/2021] [Indexed: 11/29/2022] Open
Abstract
The bacteriocidal properties of silver nanoparticles (AgNPs) depend on their average diameter (toxicity increases with decreasing diameter). In the present work, we describe novel green chemistry biosynthesis of AgNPs from AgNO3 added to cell-free culture medium of baker’s yeast, Saccharomyces cerevisiae, yielding nanoparticles in the range 11–25 nm. However, when yeast was grown in a moderate static magnetic field, AgNPs obtained from the resulting cell-free culture medium, were significantly smaller (2–12 nm) than those obtained without magnetic field. These latter nanoparticles were highly crystalline, stable and near-uniform shape. Furthermore, the antibacterial activity of AgNPs obtained from static magnetic fields were greater than those from control cultures. Static magnetic fields show a promising ability to generate biocidal nanoparticles via this novel green chemistry approach.
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Cu(II) Schiff base complex functionalized mesoporous silica nanoparticles as an efficient catalyst for the synthesis of questiomycin A and photo-Fenton-like rhodamine B degradation. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Sutar RS, Barkul RP, Patil MK. Sunlight assisted photocatalytic degradation of different organic pollutants and simultaneous degradation of cationic and anionic dyes using titanium and zinc based nanocomposites. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117191] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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35
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Understanding Pore Surface Modification of Sucrose-Modified Iron Oxide/Silica Mesoporous Composite for Degradation of Methylene Blue. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2021. [DOI: 10.9767/bcrec.16.3.10619.459-471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Santa Barbara Amorphous (SBA-15) containing iron oxide with a sucrose-modified in a heterogeneous reaction for degradation methylene blue (MB) successful synthesized used hydrothermal, ultrasonication, and wet impregnation method. SBA-15 is mesoporous silica that can easily serve as external and internal surfaces making it suitable for a wide range of applications. The structure and morphology of materials were characterized using Surface Area Analyzer (SAA), X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope-Energy Dispersive X-Ray (SEM-EDX), and Transmission Electron Microscopy (TEM). Iron oxide impregnated as a maghemite phase has an average size of 12 nm and well distributed on the SBA-15. After modified with sucrose the materials remaining stable, which has a two-dimensional hexagonal (p6mm) structure, high specific surface area, and large pore volume (up to 1.82 cm3.g−1). The degradation of MB was evaluated under visible light irradiation using UV-Vis spectroscopy. Catalytic activity showed efficiencies of 52.9; 70.2; and 21.1% for SBA-15, Fe2O3/SBA-15, and sucrose-modified Fe2O3/SBA-15 respectively. Sucrose-modified Fe2O3/SBA-15 has the lowest efficiency, which probably occurs due to the presence of pore-blocking and the formation of micropores on the external pore. The modification with sucrose has the advantage of producing a high surface area even though there is a catalytic center due to partial decomposition which causes a decrease in the efficiency of degradation of MB. All materials provide a high micro surface area so that they can be further adapted and can be widely applied to many potential applications as both catalyst support and an adsorbent. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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Chakinala N, Gogate PR, Chakinala AG. Highly efficient bi-metallic bismuth-silver doped TiO2 photocatalyst for dye degradation. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0890-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Majumder A, Saidulu D, Gupta AK, Ghosal PS. Predicting the trend and utility of different photocatalysts for degradation of pharmaceutically active compounds: A special emphasis on photocatalytic materials, modifications, and performance comparison. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 293:112858. [PMID: 34052613 DOI: 10.1016/j.jenvman.2021.112858] [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: 02/11/2021] [Revised: 05/01/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
The rapid rise in the healthcare sector has led to an increase in pharmaceutically active compounds (PhACs) in different aqueous bodies. The toxicity of the PhACs and their ability to persist after conventional treatment processes have escalated research in the field of photocatalytic treatment. Although different photocatalysts have been successful in degrading PhACs, their inherent drawbacks have severely limited their application on a large scale. A substantial amount of research has been aimed at overcoming the high cost of the photocatalytic material, low quantum yield, the formation of toxic end products, etc. Hence, to further research in this field, researchers must have a fair idea of the current trends in the application of different photocatalysts. In this article, the trends in the use of various photocatalysts for the removal of different PhACs have been circumscribed. The performance of different groups of photocatalysts to degrade PhACs from synthetic and real wastewater has been addressed. The drawbacks and advantages of these materials have been compared, and their future in the field of PhACs removal has been predicted using S-curve analysis. Zinc and titanium-based photocatalysts were efficient under UV irradiation, while bismuth and graphene-based materials exhibited exemplary performance in visible light. However, iron-based compounds were found to have the most promising future, which may be because of their magnetic properties, easy availability, low bandgap, etc. Different modification techniques, such as morphology modification, doping, heterojunction formation, etc., have also been discussed. This study may help researchers to clarify the current research status in the field of photocatalytic treatment of PhACs and provide valuable information for future research.
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Affiliation(s)
- Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Duduku Saidulu
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India.
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
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Lee QY, Li H. Photocatalytic Degradation of Plastic Waste: A Mini Review. MICROMACHINES 2021; 12:907. [PMID: 34442528 PMCID: PMC8399493 DOI: 10.3390/mi12080907] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/21/2021] [Accepted: 07/28/2021] [Indexed: 01/17/2023]
Abstract
Plastic waste becomes an immediate threat to our society with ever-increasing negative impacts on our environment and health by entering our food chain. Sunlight is known to be the natural energy source that degrades plastic waste at a very slow rate. Mimicking the role of sunlight, the photocatalytic degradation process could significantly accelerate the degradation rate thanks to the photocatalyst that drastically facilitates the photochemical reactions involved in the degradation process. This mini review begins with an introduction to the chemical compositions of the common plastic waste. The mechanisms of photodegradation of polymers in general were then revisited. Afterwards, a few photocatalysts were introduced with an emphasis on titanium dioxide (TiO2), which is the most frequently used photocatalyst. The roles of TiO2 photocatalyst in the photodegradation process were then elaborated, followed by the recent advances of photocatalytic degradation of various plastic waste. Lastly, our perspectives on the future research directions of photocatalytic plastic degradation are present. Herein, the importance of catalytic photodegradation is emphasized to inspire research on developing new photocatalysts and new processes for decomposition of plastic waste, and then to increase its recycling rate particularly in the current pandemic with the ever-increasing generation of plastic waste.
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Affiliation(s)
- Qian Ying Lee
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore;
| | - Hong Li
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore;
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
- CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, Singapore 637553, Singapore
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Hydrothermal synthesis of an efficient and visible light responsive pure and strontium doped zinc oxide nano-hexagonal photocatalysts for photodegradation of Rhodamine B dye. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01669-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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40
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Jyotsna, Kaur A, Kansal SK, Umar A. β-AgVO3 nanowires/TiO2 nanoparticles heterojunction assembly with improved visible light driven photocatalytic decomposition of hazardous pollutants and mechanism insight. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117271] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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41
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Jain M, Vashishtha P, Gupta G, Sinha AK, Gupta M, Vij A, Thakur A. Mechanistic insights into defect generation and tuning of optical properties in Zn 1-xFe xAl 2O 4(0.01 ≤ x ≤ 0.40) nanocrystals. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2020; 76:757-768. [PMID: 33017309 DOI: 10.1107/s2052520620009130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
The correlation of several defects and optical and magnetic properties with Fe content in Zn1-xFexAl2O4 (0.01 ≤ x ≤ 0.40) nanocrystals has been scrutinized through X-ray diffraction, O K-edge X-ray absorption near-edge structure, FT-IR, diffuse reflectance, photoluminescence and electron spin-resonance spectroscopies, and vibrating sample magnetometry. Increasing Fe content causes elongation in the octahedral units of the lattice, accompanied by distortion in the octahedral coordination. Fe introduces non-radiative centres in the forbidden gap, thereby tuning the band gap from 4.37 to 3.88 eV and eliminating emission in the visible region. Zn vacancies are found to tail off, while {\rm Fe}_i^{\bullet \bullet \bullet}, {\rm Al}_{\rm Zn}^\bullet and FeAl× antisite defects increase in concentration with increasing Fe content. Inhomogeneous broadening of spin-resonance signals infers strong spin-lattice interactions of Fe3+ ions at distorted octahedral and non-symmetric tetrahedral sites. A transition is observed from paramagnetism to superparamagnetism at higher Fe concentrations. A visual colour change from pearly white to orange-brown is observed in Zn1-xFexAl2O4 nanocrystals with increasing Fe content, revealing its potential candidature for pigments in the paint and dye industries.
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Affiliation(s)
- Megha Jain
- Advanced Materials Research Laboratory, Department of Basic and Applied Sciences, Punjabi University, Patiala, Punjab 147002, India
| | - Pargam Vashishtha
- Advanced Materials and Devices Division, CSIR-National Physical Laboratory, New Delhi 110012, India
| | - Govind Gupta
- Advanced Materials and Devices Division, CSIR-National Physical Laboratory, New Delhi 110012, India
| | - Anil Kumar Sinha
- Raja Ramanna Centre for Advanced Technology, PO CAT, Indore, Madhya Pradesh 452013, India
| | - Mukul Gupta
- UGC-DAE Consortium, Indore Centre, Khandwa Road, Indore, Madhya Pradesh 452017, India
| | - Ankush Vij
- Nanophosphors Laboratory, Department of Physics, Amity University Haryana, Gurgaon, Haryana 122413, India
| | - Anup Thakur
- Advanced Materials Research Laboratory, Department of Basic and Applied Sciences, Punjabi University, Patiala, Punjab 147002, India
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