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Garg D, Singh G, Rekhi H, Kaur M, Verma R, Singh K, Malik AK. Pure and Antimony-doped Tin Oxide Nanoparticles for Fluorescence Sensing and Dye Degradation Applications. J Fluoresc 2024; 34:449-463. [PMID: 37294382 DOI: 10.1007/s10895-023-03283-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/21/2023] [Indexed: 06/10/2023]
Abstract
Luminescent antimony doped tin oxide nanoparticles have drawn tremendous attention from researchers due to its low cost, chemical inertness and stability. Herein, a quick, facile and economic hydrothermal/solvothermal method was utilized for the preparation of antimony doped (1%, 3%, 5%, 7% and 10%) tin oxide nanoparticles. The antimony doping in a reasonable range can change the properties of SnO2. As such, a lattice distortion increases with increase in doping, which is evidenced through crystallographic studies. It was found that the highest photocatalytic degradation efficiency of malachite green (MG) dye of about 80.86% was achieved with 10% Sb-doped SnO2 in aqueous media due to small particle size. Moreover, 10% Sb-doped SnO2 also showed the highest fluorescence quenching efficiency of about 27% for Cd2+ of concentration 0.11 µg/ml in the drinking water. The limit of detection (LOD) comes out as 0.0152 µg/ml. This sample selectively detected the cadmium ion even in the presence of other heavy metal ions. Notably, 10% Sb-doped SnO2 could appeared as a promising sensor for fast analysis of Cd2+ ions in real samples.
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Affiliation(s)
- Deepika Garg
- Department of Chemistry, Punjabi University, Patiala, 147 002, Punjab, India
| | - Gurdeep Singh
- Department of Chemistry, Punjabi University, Patiala, 147 002, Punjab, India
| | - Heena Rekhi
- GSSDGS Khalsa College, Patiala, 147 001, Punjab, India
| | - Manpreet Kaur
- Department of Chemistry, Punjabi University, Patiala, 147 002, Punjab, India
| | - Rajpal Verma
- Department of Chemistry, Punjabi University, Patiala, 147 002, Punjab, India
| | - Karamjit Singh
- Department of Physics, Punjabi University, Patiala, 147 002, Punjab, India
| | - Ashok Kumar Malik
- Department of Chemistry, Punjabi University, Patiala, 147 002, Punjab, India.
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Panneer NK, Venkatraman C, Bachan N, Wilson JJ, Edwin MA, Jesudasan AR, Joseph MS. Ecofriendly sol-gel-derived dye-sensitized solar cells with aluminium-doped tin oxide photoanode. Environ Sci Pollut Res Int 2023; 30:60524-60537. [PMID: 37036651 DOI: 10.1007/s11356-023-26733-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/27/2023] [Indexed: 04/11/2023]
Abstract
The manuscript reports the fabrication of an eco-friendly sol gel dye-sensitized solar cell (DSSC) based on aluminium (Al)-doped tin oxide nanoparticles with different concentrations (0.5, 1, and 5 mol%) of Al providing enhanced optical and electrical properties than its bare counterparts. The physical, chemical, optical, and electrical properties of the as-synthesized nanoparticles were studied using different analytical tools. X-ray diffraction (XRD) study reveals the crystal structure of the prepared samples ascribed to SnO2 nanoparticles uniformly with reduced crystallite size for Al-doped SnO2 nanoparticles. Field emission scanning electron microscope (FESEM) analysis reveals narrowing of particle size on doping with the Al, substantially enhancing the optical and surface characteristic features of the SnO2 nanoparticles. Photoconductivity studies indicate that all the samples have a good linear response with the increment of electric field in dark and photocurrent attributing to better photoconversion capability of the samples. Further, the optimized Al-doped SnO2 and bare SnO2 nanoparticles were subjected to sophisticated analytical studies such as high-resolution transmission electron microscope (HR-TEM) and X-ray photoelectron spectroscopy (XPS) for the better insight into their properties. The as-prepared Al-doped SnO2 nanoparticles in the present study record good optical, surface, and electrical properties which enhance their compatibility for possible photovoltaic applications especially in dye-sensitized solar cells as an environmentally safe alternate energy solution. Further, the current density-voltage (J-V) characteristics of the optimized Al-SnO2 and bare SnO2 photoanode component were probed for their suitability in DSSCs which disclosed enriched efficiency upon doping with aluminium nanoparticles.
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Affiliation(s)
- Naveen Kumar Panneer
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Chandrakala Venkatraman
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Neena Bachan
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Jothi Jeyarani Wilson
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Merlin Arnold Edwin
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Antony Robinson Jesudasan
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Merline Shyla Joseph
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India.
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Amutha T, Rameshbabu M, Razia M, Bakri M, Florence SS, Muthupandi S, Prabha K. Structural, optical and antibacterial activity of pure and co-doped (Fe & Ni) tin oxide nanoparticles. Spectrochim Acta A Mol Biomol Spectrosc 2023; 287:121996. [PMID: 36327808 DOI: 10.1016/j.saa.2022.121996] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/24/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
In this investigation, ferric (Fe) and nickel (Ni) co-doped tin oxide (SnO2) nanoparticles structural, optical, morphological, and antibacterial characteristics were synthesised, characterised, and examined. By employing SnCl2·2H2O and the transition metal precursors FeCl3 and NiCl2·6H2O with various Fe/Ni molar ratios, thermal annealing was carried out at a high temperature (700 °C). X-ray diffraction (XRD), UV-Visible spectroscopy, Photoluminescence (PL), FT-IR, and scanning electron microscopy (SEM) with energy dispersive X-ray techniques (EDX) were used to examine the materials' structural, chemical, optical, morphological, and anti-microbial capabilities. The average particle size of pure and co-doped SnO2 nanoparticles was determined to be around 52 nm and 15 nm, and SnO2 crystallites were observed to present tetragonal rutile structure with space group P42/mmm (No.136). Metal ions were replaced in the Sn lattice, as shown by Fe and Ni co-doped SnO2 nanoparticles. Pure and co-doped samples have capsule and sphere-like features in their SEM morphology. Using UV-visible diffuse reflectance spectroscopy, the optical property was examined, and it was observed that the band gaps for pure and co-doped SnO2 were 3.73 eV and 3.53 eV, respectively. The functional groups and incorporation of Fe and Ni in the prepared powder were also validated by FT-IR and EDX studies. By utilising the agar well diffusion technique and Nutrient agar, the antibacterial properties of pure, Ni-Fe co-doped SnO2 nanoparticles annealed at 700 °C were assessed. They were evaluated against various Gram-positive bacteria (Staphylococcus pheumoniae) and Gram-negative bacteria (Shigella dysenteria). The zone of incubation was found against the Gram +Ve and Gram -Ve bacterial strains.
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Affiliation(s)
- T Amutha
- Department of Physics, Mother Teresa Women's University, Kodaikanal 624101, Tamil Nadu, India
| | - M Rameshbabu
- Department of Physics, Arulmigu Palaniandavar College of Arts and Culture, Palani 624601, Tamil Nadu, India
| | - M Razia
- Department of Biotechnology, Mother Teresa Women's University, Kodaikanal 624101, Tamil Nadu, India
| | - Marwah Bakri
- Department of Biology, Jazan University, Jizan 45142, Saudi Arabia
| | - S Sasi Florence
- Department of Physics, Jazan University, Jizan 45142, Saudi Arabia
| | - S Muthupandi
- Department of Physics, Loyola College, Affiliated to University of Madras, Chennai 600034, Tamil Nadu, India
| | - K Prabha
- Department of Physics, Mother Teresa Women's University, Kodaikanal 624101, Tamil Nadu, India.
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Khan A, Ullah I, Khan AU, Ahmad B, Katubi KM, Alsaiari NS, Saleem M, Ansari MZ, Liu J. Photocatalytic degradation and electrochemical energy storage properties of CuO/SnO 2 nanocomposites via the wet-chemical method. Chemosphere 2023; 313:137482. [PMID: 36528158 DOI: 10.1016/j.chemosphere.2022.137482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/09/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Integrating semiconducting functional materials is a way to enlarge the photoexcitation, energy range, and charge separation, greatly elongating the photocatalytic efficiency to enhance the chemical and physical properties of the materials. This work depicts and investigates the impact of cuprous oxide (CuO) and tin dioxide (SnO2)-based catalysts with various CuO concentrations on photocatalytic and supercapacitor applications. Moreover, three distinct composites were made with varied ratios of CuO (5, 10, and 15% wt. Are designated as AT-1, AT-2, and AT-3) with SnO2 to get an optimized performance. The photocatalytic properties indicate that the CuO/SnO2 nanocomposite outperformed its bulk equivalents in photocatalysis using Methyl blue (MB) dye in a photoreactor. The results were monitored using a UV-visible spectrometer. The AT-1 ratio nanocomposite displayed 96% photocatalytic degradation compared to pure SnO2 and CuO. CV analysis reveals a pseudocapacitive charge storage mechanism from 0.0 to 0.7 V in a potential window in an aqueous medium. The capacitive performance was also investigated for all electrodes, and we observed that a high capacitance of 260/155 F/g at 1/10 A/g was attained for the AT-1 electrode compared to others, specifying good rate performance.
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Affiliation(s)
- Azam Khan
- College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Inam Ullah
- College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Afaq Ullah Khan
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Bilal Ahmad
- Department of Chemistry, Postgraduate College Khar Bajaur, Pakistan
| | - Khadijah Mohammedsaleh Katubi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P. O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Norah Salem Alsaiari
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P. O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Muhammad Saleem
- Department of Physics, The Islamia University of Bahawalpur, Punjab, Pakistan
| | - Mohd Zahid Ansari
- School of Materials Science and Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
| | - Jianjun Liu
- College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
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Jarvin M, Inbanathan SSR, Rani Rosaline D, Josephine Prabha A, Martin Britto Dhas SA. A study of the structural, morphological, and optical properties of shock treated SnO 2 nanoparticles: removal of Victoria blue dye. Heliyon 2022; 8:e09653. [PMID: 35734569 PMCID: PMC9207618 DOI: 10.1016/j.heliyon.2022.e09653] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/18/2022] [Accepted: 05/31/2022] [Indexed: 01/11/2023] Open
Abstract
In this work, Tin Oxide (SnO2) nanoparticles (NPs) were prepared by green microwave followed by hydrothermal methods, using tea extract as a reducing agent. To verify the stability of physical and chemical properties of SnO2 NPs, samples were subjected to shock impulsion experimentation. Different characterization techniques were employed to analyze the crystallinity, molecular structure, and optical parameters of the control SnO2 and shock wave exposed SnO2 NPs. Powder X-ray diffraction (PXRD) revealed no significant change in crystal structure. Williamson – Hall analysis demonstrates that the stress and strain between Sn–O changes during the impulsion of shocks. Rietveld analysis reveals change in the bond length between Sn–O. The molecular structure is not affected during shock loading, but the optical properties do change. From the photocatalytic experiment, we find that the parameters such as stress, strain, and bond length make an enormous impact in photocatalytic application.
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Affiliation(s)
- M Jarvin
- Post Graduate and Research Department of Physics, The American College, Madurai, 625002, Tamil Nadu, India
| | - S S R Inbanathan
- Post Graduate and Research Department of Physics, The American College, Madurai, 625002, Tamil Nadu, India
| | - D Rani Rosaline
- Post Graduate and Research Department of Chemistry, Lady Doak College, Madurai, 625002, Tamil Nadu, India
| | - A Josephine Prabha
- Department of Physics, Bishop Heber College, Tiruchirappalli, 620017, Tamil Nadu, India
| | - S A Martin Britto Dhas
- Shock Wave Research Laboratory, Department of Physics, Abdul Kalam Research Center, Sacred Heart College, Tirupattur, Vellore, 635 601, Tamil Nadu, India
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Kamalvandi P, Akhlaghian F. Copper cable doped with tin oxide and its application to photodegrade natural organic matters. J Environ Health Sci Eng 2022; 20:555-563. [PMID: 35669817 PMCID: PMC9163279 DOI: 10.1007/s40201-022-00802-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 05/02/2022] [Indexed: 05/25/2023]
Abstract
Natural organic matters are of particular importance in drinking water treatment due to their reaction with chlorine, and formation of disinfection byproducts that cause cancer in humans. Photocatalysis can remove natural organic matters from water but usually powdery photocatalysts are used which should be separated from water by filtration due to their toxic effects. In this work, a piece of copper cable used in electric industries was doped with tin oxide and applied as a photocatalyst to remove natural organic matters, humic acid and humate liquid fertilizer, from water. Tin (II) chloride was used as precursor, and deposited on the copper cable by dip coating method. Then the coated cable was calcinated at 300 °C. The prepared SnO2/CuO/Cu photocatalyst was characterized by ICP, SEM, DRS, XRD, and ASAP techniques. The results of XRD confirmed the existence of copper oxide, and tin oxides. DRS showed that doping with tin oxide caused the photocatalytic property to improve, and the catalyst was active under irradiation of UV-Vis light. Effects of humic acid concentration, photocatalyst length, and time were studied. The kinetic of humic acid photodegradation by the SnO2/CuO/Cu photocatalyst was investigated, which obeyed the first order model. The photocatalyst regeneration and reuse were investigated in five cycles, and the results indicated that photocatalytic activity was remained nearly constant. The cable form SnO2/CuO/Cu photocatalyst with the main advantage of easy separation from water without the need to filtration, has excellent photocatalytic activity.
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Affiliation(s)
- Pouria Kamalvandi
- Department of Chemical Engineering, Faculty of Engineering, University of Kurdistan, Sanandaj, Iran
| | - Faranak Akhlaghian
- Department of Chemical Engineering, Faculty of Engineering, University of Kurdistan, Sanandaj, Iran
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Min J, Xu X, Koh JJ, Gong J, Chen X, Azadmanjiri J, Zhang F, Liu S, He C. Diverse-shaped tin dioxide nanoparticles within a plastic waste-derived three-dimensional porous carbon framework for super stable lithium-ion storage. Sci Total Environ 2022; 815:152900. [PMID: 34998743 DOI: 10.1016/j.scitotenv.2021.152900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/14/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
Tin dioxides (SnO2) inserted into carbons to serve as anodes for rechargeable lithium-ion batteries are known to improve their cycling stability. However, studies on diverse-shaped SnO2 nanoparticles within a porous carbon matrix for super stable lithium-ion storage are rare. Herein, a hollow carbon sphere/porous carbon flake (HCS/PCF) framework is fabricated through template carbonization of plastic waste. By changing the doping mechanism and tuning the loading content, nano SnO2 spheres and cubes as well as bulk SnO2 flakes and blocks are in-situ grown within the HCS/PCF. Then, the as-prepared hybrids with built-in various morphological SnO2 nanoparticles serve as anodes towards advanced lithium-ion batteries. Notably, HCS/PCF embedded with nano SnO2 spheres and cubes anodes possess superb long-term cycling stability (~0.048% and ~0.05% average capacitance decay per cycle at 1 A/g over 400 cycles) with high reversible specific capacities of 0.45 and 0.498 Ah/g after 1000 cycles at 5 A/g. The ultra-stabilized Li+ storage is attributed to the effective mitigation of nano SnO2 spheres/cubes volume expansion, originating from the compact SnO2 yolk-HCS/PCF shell construction. This study paves a general strategy for disposing of polymeric waste to produce SnO2 core-carbon shell anodes for super stable lithium-ion storage.
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Affiliation(s)
- Jiakang Min
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
| | - Xiaodong Xu
- Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, Szczecin 71065, Poland
| | - J Justin Koh
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
| | - Jiang Gong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Semiconductor Chemistry Center, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xuecheng Chen
- Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, Szczecin 71065, Poland
| | - Jalal Azadmanjiri
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Feifei Zhang
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
| | - Siqi Liu
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
| | - Chaobin He
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
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Khan MM, Matussin SN, Rahman A. Recent progress of phytogenic synthesis of ZnO, SnO 2, and CeO 2 nanomaterials. Bioprocess Biosyst Eng 2022. [PMID: 35244777 DOI: 10.1007/s00449-022-02713-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/14/2022] [Indexed: 01/17/2023]
Abstract
A critical investigation on the fabrication of metal oxide nanoparticles (NPs) such as ZnO, SnO2, and CeO2 NPs synthesized from green and phytogenic method using plants and various plant parts have been compiled. In this review, different plant extraction methods, synthesis methods, characterization techniques, effects of plant extract on the physical, chemical, and optical properties of green synthesized ZnO, SnO2, and CeO2 NPs also have been compiled and discussed. Effect of several parameters on the size, morphology, and optical band gap energy of metal oxide have been explored. Moreover, the role of solvents has been found important and discussed. Extract composition i.e. phytochemicals also found to affect the morphology and size of the synthesized ZnO, SnO2, and CeO2 NPs. It was found that, there is no universal extraction method that is ideal and extraction techniques is unique to the plant type, plant parts, and solvent used.
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Gnanasekaran L, Priya AK, Gracia F. Orange peel extract influenced partial transformation of SnO 2 to SnO in green 3D-ZnO/SnO 2 system for chlorophenol degradation. J Hazard Mater 2022; 424:127464. [PMID: 34653855 DOI: 10.1016/j.jhazmat.2021.127464] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 09/24/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
In recent times, visible light enhancement has become much more considered due to the enlightening properties of nanocomposite systems. This has potential applications for wastewater treatment due to the blemish of toxic organic chemicals from industrial sectors. Therefore, this work is focused on novel 3D ZnO/SnO2 nanocomposites synthesized by the green method (orange peel extracts supported combined chemical processes) utilized for the removal of chlorophenol effluent. The orange peel extract has been incorporated as one of the major components to synthesize an effective nanocomposite. Also, the pure materials were synthesized along with these nanocomposites and tested under various instrumental techniques. The characterized results showed that the composites prepared with orange peel extract exhibited hexagonal 3D ZnO nanospheres with 3D tetragonal structured SnO2 nanocubes. Elemental analysis showed that the partial amount of SnO2 has transformed to SnO due to the reducing ability of orange peel extract. Also, the existing different (Zn2+, Sn4+, and Sn2+) states helped in delaying the transfer of electron-hole recombination to obtain photocatalytic chlorophenol degradation. Further, the prevailing line dislocation can compromise more vacancy and interact with more electrons. The high surface area, least crystallite size, and lower bandgap inspired to enhance the visible light activity. Simultaneously, the pure form of nanomaterial has poor light absorption under visible light. This study achieves the photocatalytic degradation of 77.5% against chlorophenol using a green 3D composite system.
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Affiliation(s)
- Lalitha Gnanasekaran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile.
| | - A K Priya
- Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore 641027, India
| | - F Gracia
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Beauchef 851, 6th floor, Santiago, Chile
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Mohanta D, Mahanta A, Mishra SR, Jasimuddin S, Ahmaruzzaman M. Novel SnO 2@ZIF-8/gC 3N 4 nanohybrids for excellent electrochemical performance towards sensing of p-nitrophenol. Environ Res 2021; 197:111077. [PMID: 33794171 DOI: 10.1016/j.envres.2021.111077] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 06/12/2023]
Abstract
Herein, a novel synthetic strategy has been proposed to prepare engineered SnO2@ZIF-8/gC3N4 nanohybrids for electrochemical sensing of p-nitrophenol (p-NP). The electrochemical properties were investigated using cyclic voltammetry (CV), chronoamperometry (CA), and differential pulse voltammetry (DPV). The developed nanohybrid sensor displayed an excellent electrochemical performance towards sensing of p-NP with a detection limit of 0.565 μM. The sensitivity of the prepared nanohybrid was found to be 2.63 μAcm-2μM-1. Moreover, the newly fabricated sensor exhibited remarkable selectivity (over tenfold excess) in the presence of common interferents. The simultaneous detection of isomers of nitrophenol is difficult using the developed sensor. However, other common interferents, such as phenol and aminophenol have negligible effects on the sensitivity of SnO2@ZIF-8/gC3N4 towards the detection of p-nitrophenol. Further, the newly developed sensor showed consistency of sensing response up to 30 days. Thus, implementation of SnO2@ZIF-8/gC3N4 nanohybrids as a p-NP electrochemical sensor offers the advantages of simplicity, selectivity, and stability.
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Affiliation(s)
- Dipyaman Mohanta
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India
| | - Abhinandan Mahanta
- Department of Chemistry, Assam University, Silchar, Assam, 788010, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India
| | - Sk Jasimuddin
- Department of Chemistry, Assam University, Silchar, Assam, 788010, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India.
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Selvinsimpson S, Eva Gnana Dhana Rani S, Ganesh Kumar A, Rajaram R, Sharmila Lydia I, Chen Y. Photocatalytic activity of SnO 2/Fe 3O 4 nanocomposites and the toxicity assessment of Vigna radiata, Artemia salina and Danio rerio in the photodegraded solution. Environ Res 2021; 195:110787. [PMID: 33508257 DOI: 10.1016/j.envres.2021.110787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
The study was undertaken to design SnO2/Fe3O4 nanocomposite by sonochemical method and to assess the photodegradation of organic dye. Textural, composition and structural features of the bare SnO2 and SnO2/Fe3O4 samples were characterized using scanning electron microscope (SEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The X-ray diffraction of as-synthesized SnO2/Fe3O4 nanocomposites confirms the presence of tetragonal and cubic structure. The results disclose that the incorporation of Fe3O4 in SnO2 decrease the crystallite size and increase the surface area compared with bare SnO2 nanoparticle. The as-prepared photocatalyst shows higher efficiency than the bare SnO2 under sunlight irradiation. Vigna radiata seeds (VR), Artemia salina (AS) and Zebra fish (Danio rerio (DR) were used to check the toxicity level of the treated and untreated Rhodamine B (RhB) dye solution. These models displayed good consistency for examining the harmfulness of the solutions. The results suggests SnO2/Fe3O4 nanocomposite exhibited a good efficacy in the dye wastewater treatment. Further, the degradation efficiency was confirmed by the toxicity examination.
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Affiliation(s)
| | - S Eva Gnana Dhana Rani
- PG and Research Department of Chemistry, Bishop Heber College, Tiruchirappalli, 620017, Tamil Nadu, India
| | - A Ganesh Kumar
- DNA Barcoding and Marine Genomics Laboratory, Department of Marine Science, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India
| | - R Rajaram
- DNA Barcoding and Marine Genomics Laboratory, Department of Marine Science, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India
| | - I Sharmila Lydia
- PG and Research Department of Chemistry, Bishop Heber College, Tiruchirappalli, 620017, Tamil Nadu, India
| | - Yong Chen
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, China.
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Thai NX, Tonezzer M, Masera L, Nguyen H, Duy NV, Hoa ND. Multi gas sensors using one nanomaterial, temperature gradient, and machine learning algorithms for discrimination of gases and their concentration. Anal Chim Acta 2020; 1124:85-93. [PMID: 32534679 DOI: 10.1016/j.aca.2020.05.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/26/2020] [Accepted: 05/05/2020] [Indexed: 11/28/2022]
Abstract
In this work, four identical micro sensors on the same chip with noble metal decorated tin oxide nanowires as gas sensing material were located at different distances from an integrated heater to work at different temperatures. Their responses are combined in highly informative 4D points that can qualitatively (gas recognition) and quantitatively (concentration estimate) discriminate all the tested gases. Two identical chips were fabricated with tin oxide (SnO2) nanowires decorated with different metal nanoparticles: one decorated with Ag nanoparticles and one with Pt nanoparticles. Support Vector Machine was used as the "brain" of the sensing system. The results show that the systems using these multisensor chips were capable of achieving perfect classification (100%) and good estimation of the concentration of tested gases (errors in the range 8-28%). The Ag decorated sensors did not have a preferential gas, while Pt decorated sensors showed a lower error towards acetone, hydrogen and ammonia. Combination of the two sensor chips improved the overall estimation of gas concentrations, but the individual sensor chips were better for some specific target gases.
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Affiliation(s)
- Nguyen Xuan Thai
- ITIMS, Hanoi University of Science and Technology, Hanoi, Viet Nam; Vietnam Metrology Institute, 8 Hoang Quoc Viet Road, Hanoi, Viet Nam
| | - Matteo Tonezzer
- IMEM-CNR, Sede di Trento - FBK, Via Alla Cascata 56/C, Povo, TN, Italy; University of Trento, Via Calepina 14, Trento, Italy.
| | - Luca Masera
- DISI, University of Trento, Via Sommarive 9, Povo, Trento, Italy
| | - Hugo Nguyen
- Uppsala University, Department of Material Science, Uppsala, Sweden
| | - Nguyen Van Duy
- ITIMS, Hanoi University of Science and Technology, Hanoi, Viet Nam.
| | - Nguyen Duc Hoa
- ITIMS, Hanoi University of Science and Technology, Hanoi, Viet Nam
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13
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Asif M, Rashad M, Shah JH, Zaidi SDA. Surface modification of tin oxide through reduced graphene oxide as a highly efficient cathode material for magnesium-ion batteries. J Colloid Interface Sci 2020; 561:818-828. [PMID: 31771875 DOI: 10.1016/j.jcis.2019.11.064] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/15/2019] [Accepted: 11/15/2019] [Indexed: 11/25/2022]
Abstract
Among post-lithium ion technologies, magnesium-ion batteries (MIBs) are receiving great concern in recent years. However, MIBs are mainly restrained by the lack of cathode materials, which may accommodate the fast diffusion kinetics of Mg2+ ions. To overcome this problem, herein we attempt to synthesize a reduced graphene oxide (rGO) encapsulated tin oxide (SnO2) nanoparticles composites through an electrostatic-interaction-induced-self-assembly approach at low temperature. The surface modification of SnO2 via carbonaceous coating enhanced the electrical conductivity of final composites. The SnO2-rGO composites with different weight ratios of rGO and SnO2 are employed as cathode material in magnesium-ion batteries. Experimental results show that MIB exhibits a maximum specific capacity of 222 mAhg-1 at the current density of 20 mAg-1 with a good cycle life (capacity retention of 90%). Unlike Li-ion batteries, no SnO2 nanoparticles expansion is observed during electrochemical cycling in all-phenyl-complex (APC) magnesium electrolytes, which ultimately improves the capacity retention. Furthermore, ex-situ x-ray diffraction and scanning electron microscopy (SEM) studies are used to understand the magnesiation/de-magnesiation mechanisms. At the end, SnO2-rGO composites are tested for Mg2+/Li+ hybrid ion batteries and results reveal a specific capacity of 350 mAhg-1 at the current density of 20 mAg-1. However, hybrid ion battery exhibited sharp decay in capacity owing to volume expansion of SnO2 based cathodes. This work will provide a new insight for synthesis of electrode materials for energy storage devices.
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Affiliation(s)
- Muhammad Asif
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China.
| | - Muhammad Rashad
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China.
| | - Jafar Hussain Shah
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Syed Danish Ali Zaidi
- Advanced Rechargeable Batteries Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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14
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Wang MY, Wang XL, Yao ZJ, Xie D, Xia XH, Gu CD, Tu JP. Molybdenum-doped tin oxide nanoflake arrays anchored on carbon foam as flexible anodes for sodium-ion batteries. J Colloid Interface Sci 2020; 560:169-76. [PMID: 31670014 DOI: 10.1016/j.jcis.2019.10.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/15/2019] [Accepted: 10/17/2019] [Indexed: 12/12/2022]
Abstract
Tin oxide (SnO2) has been widely used as an anode material for sodium-ion storage because of its high theoretical capacity. However, it suffers from large volume expansion and poor conductivity. To overcome these limitations, in this study, we have designed and prepared Mo-doped SnO2 nanoflake arrays anchored on carbon foam (Mo-SnO2@C-foam with 38.41 wt% SnO2 and 3.7 wt% Mo content) by a facile hydrothermal method. The carbon foam serves as a three-dimensional conductive network and a buffer skeleton, contributing to improved rate performance and cycling stability. In addition, Mo doping enhances the kinetics of sodium-ion transfer, and the interlaced SnO2 nanoflake arrays is beneficial to promote the conversion reactions during the charge/discharge process. The as-prepared composite with a unique structure demonstrate a high initial capacity of 1017.1 mAh g-1 at 0.1 A g-1, with a capacity retention over three times higher than that of the control sample (SnO2@C-foam) at 1 A g-1, indicating a remarkable rate performance.
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15
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Barick BK, Simon A, Weisbord I, Shomrat N, Segal-Peretz T. Tin oxide nanostructure fabrication via sequential infiltration synthesis in block copolymer thin films. J Colloid Interface Sci 2019; 557:537-545. [PMID: 31550646 DOI: 10.1016/j.jcis.2019.09.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 10/26/2022]
Abstract
Tin oxide (SnO2) nanostructures are attractive for sensing, catalysis, and optoelectronic applications. Here we investigate the fabrication of SnOx nanostructures through sequential infiltration synthesis (SIS) in block copolymer (BCP) film templates. While the growth of metal and metal oxides within polymers and BCP films via SIS has been demonstrated until now using small precursors such as trimethyl aluminum and diethyl zinc, we hypothesize that SIS can be performed using larger precursors and demonstrate SnOx SIS with tetrakis(dimethylamino)tin (TDMASn) and hydrogen peroxide. Tuning the SIS reaction and BCP chemistry resulted in highly ordered, polystyrene-block-poly(2-vinyl pyridine) (P2VP)-templated porous SnOx - AlOx and SnOx nanostructures. Detailed investigation using in-situ microbalance, high resolution electron microscopy, elemental analysis and infra-red spectroscopy shows that SnOx can directly grow within P2VP homopolymer and BCP films. Simultaneously with the growth, SnOx SIS process also contributes to the polymer etch. Performing SnOx SIS with pretreatment of a single AlOx SIS cycle increases the SnOx growth and protects the BCP template from etching. This is the first report of SnOx SIS opening a pathway for additional tetrakis-based organometallic precursors to be utilized in growth processes within polymers.
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Affiliation(s)
- Barun K Barick
- Department of Chemical Engineering, Technion, Haifa 3200003, Israel
| | - Assaf Simon
- Department of Chemical Engineering, Technion, Haifa 3200003, Israel
| | - Inbal Weisbord
- Department of Chemical Engineering, Technion, Haifa 3200003, Israel
| | - Neta Shomrat
- Department of Chemical Engineering, Technion, Haifa 3200003, Israel
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16
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Li F, Xu M, Ma X, Shen L, Zhu L, Weng Y, Yue G, Tan F, Chen C. UV Treatment of Low-Temperature Processed SnO 2 Electron Transport Layers for Planar Perovskite Solar Cells. Nanoscale Res Lett 2018; 13:216. [PMID: 30030648 PMCID: PMC6054596 DOI: 10.1186/s11671-018-2633-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/11/2018] [Indexed: 06/08/2023]
Abstract
We report a new method as UV treatment of low-temperature processed to obtain tin oxide (SnO2) electron transport layers (ETLs). The results show that the high quality of ETLs can be produced by controlling the thickness of the film while it is treated by UV. The thickness is dependent on the concentration of SnO2. Moreover, the conductivity and transmittance of the layer are dependent on the quality of the film. A planar perovskite solar cell is prepared based on this UV-treated film. The temperatures involved in the preparation process are less than 90 °C. An optimal power conversion efficiency of 14.36% is obtained at the concentration of SnO2 of 20%. This method of UV treatment SnO2 film at low temperature is suitable for the low-cost commercialized application.
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Affiliation(s)
- Fumin Li
- Henan Key Laboratory of Photovoltaic Materials, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
- School of Physics and Electronics, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
| | - Mengqi Xu
- Henan Key Laboratory of Photovoltaic Materials, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
| | - Xingping Ma
- Henan Key Laboratory of Photovoltaic Materials, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
| | - Liang Shen
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012 People’s Republic of China
| | - Liangxin Zhu
- Henan Key Laboratory of Photovoltaic Materials, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
- School of Physics and Electronics, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
| | - Yujuan Weng
- Henan Key Laboratory of Photovoltaic Materials, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
- School of Physics and Electronics, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
| | - Gentian Yue
- Henan Key Laboratory of Photovoltaic Materials, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
- School of Physics and Electronics, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
| | - Furui Tan
- Henan Key Laboratory of Photovoltaic Materials, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
- School of Physics and Electronics, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
| | - Chong Chen
- Henan Key Laboratory of Photovoltaic Materials, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
- School of Physics and Electronics, Henan University, 1 Jinming Road, Kaifeng, 475004 People’s Republic of China
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17
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Chávez-Calderón A, Paraguay-Delgado F, Orrantia-Borunda E, Luna-Velasco A. Size effect of SnO 2 nanoparticles on bacteria toxicity and their membrane damage. Chemosphere 2016; 165:33-40. [PMID: 27639075 DOI: 10.1016/j.chemosphere.2016.09.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 08/31/2016] [Accepted: 09/01/2016] [Indexed: 06/06/2023]
Abstract
Semiconductor SnO2 nanoparticles (NPs) are being exploited for various applications, including those in the environmental context. However, toxicity studies of SnO2 NPs are very limited. This study evaluated the toxic effect of two sizes of spherical SnO2 NPs (2 and 40 nm) and one size of flower-like SnO2 NPs (800 nm) towards the environmental bacteria E. coli and B. subtilis. SnO2 NPs were synthesized using a hydrothermal or calcination method and they were well characterized prior to toxicity assessment. To evaluate toxicity, cell viability and membrane damage were determined in cells (1 × 109 CFU mL-1) exposed to up to 1000 mg L-1 of NPs, using the plate counting method and confocal laser scanning microscopy. Spherical NPs of smaller primary size (E2) had the lowest hydrodynamic size (226 ± 96 nm) and highest negative charge (-30.3 ± 10.1 mV). Smaller spherical NPs also showed greatest effect on viability (IC50 > 500 mg L-1) and membrane damage of B. subtilis, whereas E. coli was unaffected. Scanning electron microscopy confirmed the membrane damage of exposed B. subtilis and also exhibited the attachment of E2 NPs to the cell surface, as well as the elongation of cells. It was also apparent that toxicity was caused solely by NPs, as released Sn4+ was not toxic to B. subtilis. Thus, surface charge interaction between negatively charged SnO2 NPs and positively charged molecules on the membrane of the Gram positive B. subtilis was indicated as the key mechanism related to toxicity of NPs.
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Affiliation(s)
- Adriana Chávez-Calderón
- Centro de Investigación en Materiales Avanzados, Departamento de medio ambiente y energía, Miguel de Cervantes 120, Complejo Industrial Chihuahua, CP 31136 Chihuahua, Chih., Mexico.
| | - Francisco Paraguay-Delgado
- Centro de Investigación en Materiales Avanzados, Departamento de medio ambiente y energía, Miguel de Cervantes 120, Complejo Industrial Chihuahua, CP 31136 Chihuahua, Chih., Mexico.
| | - Erasmo Orrantia-Borunda
- Centro de Investigación en Materiales Avanzados, Departamento de medio ambiente y energía, Miguel de Cervantes 120, Complejo Industrial Chihuahua, CP 31136 Chihuahua, Chih., Mexico.
| | - Antonia Luna-Velasco
- Centro de Investigación en Materiales Avanzados, Departamento de medio ambiente y energía, Miguel de Cervantes 120, Complejo Industrial Chihuahua, CP 31136 Chihuahua, Chih., Mexico.
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18
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Ansari SG, Fouad H, Shin HS, Ansari ZA. Electrochemical enzyme-less urea sensor based on nano- tin oxide synthesized by hydrothermal technique. Chem Biol Interact 2015; 242:45-9. [PMID: 26381425 DOI: 10.1016/j.cbi.2015.09.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/05/2015] [Accepted: 09/11/2015] [Indexed: 11/15/2022]
Abstract
Nano-Tin oxide was synthesized using hydrothermal method at 150 °C for 6 h and then thin films were deposited by electrophoretic method at an optimized voltage of 100 V for 5 min on electropolished aluminum substrate. Spherical particles of about 30-50 nm diameters are observed with partial agglomeration when observed under electron microscope, which are tetragonal rutile structure. XPS results showed peaks related to Sn 4d, Sn 3d, O 1s & C 1s with spin-orbit splitting of 8.4 eV for Sn 3d. Feasibility studies of enzyme less urea sensing characteristics of nano-tin oxide thin films are exhibited herein. The deposited films have been used for enzyme less urea sensing from 1 to 20 mM concentration in buffer solution. The sensors were characterized electrochemically to obtain cyclic voltammogram as a function of urea concentration and scan rate. The sensitivity is estimated as 18.9 μA/mM below 5 mM and 2.31 μA/mM above 5 mM with a limit of detection of 0.6 mM.
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Affiliation(s)
- S G Ansari
- Center for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, 110025, India.
| | - H Fouad
- Department of Applied Medical Science, RCC, King Saud University, 11437, Riyadh, Saudi Arabia; Department of Biomedical Engineering, Faculty of Engineering, Helwan University, P.O. Box, 11792, Helwan, Egypt.
| | - Hyung-Shik Shin
- School of Chemical Engineering, Jeonbuk National University, Jeonju, 561 756, Republic of Korea.
| | - Z A Ansari
- Center for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, 110025, India
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19
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Ghaedi M, Rahimi MR, Ghaedi AM, Tyagi I, Agarwal S, Gupta VK. Application of least squares support vector regression and linear multiple regression for modeling removal of methyl orange onto tin oxide nanoparticles loaded on activated carbon and activated carbon prepared from Pistacia atlantica wood. J Colloid Interface Sci 2015; 461:425-434. [PMID: 26414425 DOI: 10.1016/j.jcis.2015.09.024] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/07/2015] [Accepted: 09/08/2015] [Indexed: 11/25/2022]
Abstract
Two novel and eco friendly adsorbents namely tin oxide nanoparticles loaded on activated carbon (SnO2-NP-AC) and activated carbon prepared from wood tree Pistacia atlantica (AC-PAW) were used for the rapid removal and fast adsorption of methyl orange (MO) from the aqueous phase. The dependency of MO removal with various adsorption influential parameters was well modeled and optimized using multiple linear regressions (MLR) and least squares support vector regression (LSSVR). The optimal parameters for the LSSVR model were found based on γ value of 0.76 and σ(2) of 0.15. For testing the data set, the mean square error (MSE) values of 0.0010 and the coefficient of determination (R(2)) values of 0.976 were obtained for LSSVR model, and the MSE value of 0.0037 and the R(2) value of 0.897 were obtained for the MLR model. The adsorption equilibrium and kinetic data was found to be well fitted and in good agreement with Langmuir isotherm model and second-order equation and intra-particle diffusion models respectively. The small amount of the proposed SnO2-NP-AC and AC-PAW (0.015 g and 0.08 g) is applicable for successful rapid removal of methyl orange (>95%). The maximum adsorption capacity for SnO2-NP-AC and AC-PAW was 250 mg g(-1) and 125 mg g(-1) respectively.
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Affiliation(s)
- M Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
| | - Mahmoud Reza Rahimi
- Chemical Engineering Department, Yasouj University, Yasouj 759418-74831, Iran
| | - A M Ghaedi
- Department of Chemistry, Faculty of Science, Gachsaran Branch, Islamic Azad University, P.O. Box 75818-63876, Gachsaran, Iran
| | - Inderjeet Tyagi
- Department of Chemistry, Indian Institute of Technology Roorkee, 247667, India
| | - Shilpi Agarwal
- Department of Chemistry, Indian Institute of Technology Roorkee, 247667, India; Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa
| | - Vinod Kumar Gupta
- Department of Chemistry, Indian Institute of Technology Roorkee, 247667, India; Center for Environment and Water, The Research Institute, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa.
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20
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Henry J, Mohanraj K, Sivakumar G, Umamaheswari S. Electrochemical and fluorescence properties of SnO2 thin films and its antibacterial activity. Spectrochim Acta A Mol Biomol Spectrosc 2015; 143:172-178. [PMID: 25727293 DOI: 10.1016/j.saa.2015.02.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/02/2015] [Accepted: 02/06/2015] [Indexed: 06/04/2023]
Abstract
Nanocrystalline SnO2 thin films were deposited by a simple and inexpensive sol-gel spin coating technique and the films were annealed at two different temperatures (350°C and 450°C). Structural, vibrational, optical and electrochemical properties of the films were analyzed using XRD, FTIR, UV-Visible, fluorescence and cyclic voltammetry techniques respectively and their results are discussed in detail. The antimicrobial properties of SnO2 thin films were investigated by agar agar method and the results confirm the antibacterial activity of SnO2 against Escherichiacoli and Bacillus.
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Affiliation(s)
- J Henry
- Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627 012, Tamil Nadu, India
| | - K Mohanraj
- Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627 012, Tamil Nadu, India.
| | - G Sivakumar
- Centralised Instrumentation and Service Laboratory, Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India
| | - S Umamaheswari
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli 627 012, Tamil Nadu, India
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21
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Vidhu VK, Philip D. Biogenic synthesis of SnO₂ nanoparticles: evaluation of antibacterial and antioxidant activities. Spectrochim Acta A Mol Biomol Spectrosc 2015; 134:372-379. [PMID: 25025309 DOI: 10.1016/j.saa.2014.06.131] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 06/23/2014] [Accepted: 06/25/2014] [Indexed: 06/03/2023]
Abstract
Nanostructured semiconductors have been of special interest to scientific community due to their peculiar properties. The quantum size effect results in spectacular variation in the optical and vibrational characteristics of nanostructured materials compared to their bulk counterparts. The present work emphasizes an unexploited, cost effective, and environmentally benign method of synthesizing bioactive tin oxide nanoparticles of size from 2.1 nm to 4.1 nm using Saraca indica flower. The XRD pattern and HRTEM images of the samples revealed an increase in particle size with annealing temperature. Fine tuning band gap could be attained as evidenced by the shift of absorption band edge and photoluminescence emission. It is found that oxygen vacancies play an important role on PL emission. The synthesized nanoparticles exhibit antibacterial activity against gram negative bacteria Escherichia coli. The antioxidant activity is evaluated by scavenging free radicals of 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH). The efficiency of biogenic SnO₂ nanoparticles as a promising antibacterial agent as well as an antioxidant for pharmaceutical applications is suggested.
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Affiliation(s)
- V K Vidhu
- Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015, India
| | - Daizy Philip
- Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015, India.
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22
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Yang S, Wu Z, Huang L, Zhou B, Lei M, Sun L, Tian Q, Pan J, Wu W, Zhang H. Significantly enhanced dye removal performance of hollow tin oxide nanoparticles via carbon coating in dark environment and study of its mechanism. Nanoscale Res Lett 2014; 9:442. [PMID: 25221462 PMCID: PMC4150862 DOI: 10.1186/1556-276x-9-442] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 08/20/2014] [Indexed: 06/03/2023]
Abstract
Understanding the correlation between physicochemical properties and morphology of nanostructures is a prerequisite for widespread applications of nanomaterials in environmental application areas. Herein, we illustrated that the uniform-sized SnO2@C hollow nanoparticles were large-scale synthesized by a facile hydrothermal method. The size of the core-shell hollow nanoparticles was about 56 nm, and the shell was composed of a solid carbon layer with a thickness of 2 ~ 3 nm. The resulting products were characterized in terms of morphology, composition, and surface property by various analytical techniques. Moreover, the SnO2@C hollow nanoparticles are shown to be effective adsorbents for removing four different dyes from aqueous solutions, which is superior to the pure hollow SnO2 nanoparticles and commercial SnO2. The enhanced mechanism has also been discussed, which can be attributed to the high specific surface areas after carbon coating.
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Affiliation(s)
- Shuanglei Yang
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, People's Republic of China
- Laboratory of Printable Functional Nanomaterials and Printed Electronics, School of Printing and Packaging, Wuhan University, Wuhan 430072, People's Republic of China
| | - Zhaohui Wu
- Department of Chemical Engineering, Kyung Hee University, Seocheon-Dong, Giheung-Gu, 446-701 Yongin, Korea
| | - LanPing Huang
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, People's Republic of China
| | - Banghong Zhou
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, People's Republic of China
| | - Mei Lei
- Key Laboratory of Artificial Micro and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
| | - Lingling Sun
- Key Laboratory of Artificial Micro and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
| | - Qingyong Tian
- Key Laboratory of Artificial Micro and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
| | - Jun Pan
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, People's Republic of China
| | - Wei Wu
- Laboratory of Printable Functional Nanomaterials and Printed Electronics, School of Printing and Packaging, Wuhan University, Wuhan 430072, People's Republic of China
| | - Hongbo Zhang
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, People's Republic of China
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23
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Lee SK, Chang D, Kim SW. Gas sensors based on carbon nanoflake/ tin oxide composites for ammonia detection. J Hazard Mater 2014; 268:110-114. [PMID: 24473403 DOI: 10.1016/j.jhazmat.2013.12.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/05/2013] [Accepted: 12/24/2013] [Indexed: 06/03/2023]
Abstract
Carbon nanoflake (CNFL) was obtained from graphite pencil by using the electrochemical method and the CNFL/SnO2 composite material assessed its potential as an ammonia gas sensor. A thin film resistive gas sensor using the composite material was manufactured by the drop casting method, and the sensor was evaluated to test in various ammonia concentrations and operating temperatures. Physical and chemical characteristics of the composite material were assessed using SEM, TEM, SAED, EDS and Raman spectroscopy. The composite material having 10% of SnO2 showed 3 times higher sensor response and better repeatability than the gas sensor using pristine SnO2 nano-particle at the optimal temperature of 350°C.
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Affiliation(s)
- Soo-Keun Lee
- Nano & Bio Research Division, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Daeic Chang
- Nano & Bio Research Division, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Sang Wook Kim
- Department of Advanced Materials Chemistry, College of Science and Technology, Dongguk University-Gyeongju, Gyeongju, Gyeongbuk 780-714, Republic of Korea.
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