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Almotairy ARZ, Al-Maswari BM, Alkanad K, Lokanath N, Radhika R, Venkatesha B. Nickel vanadate nitrogen-doped carbon nanocomposites for high-performance supercapacitor electrode. Heliyon 2023; 9:e18496. [PMID: 37533978 PMCID: PMC10392098 DOI: 10.1016/j.heliyon.2023.e18496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/12/2023] [Accepted: 07/19/2023] [Indexed: 08/04/2023] Open
Abstract
A nickel-vanadium-based bimetallic precursor was produced using the polymerization process by urea-formaldehyde copolymers. The precursor was then calcined at 800 °C in an argon ambiance to form a Ni3V2O8-NC magnetic nanocomposite. Powerful techniques were used to study the physical characteristics and chemical composition of the fabricated Ni3V2O8-NC electrode. PXRD, Raman, and FTIR analyses proved that the crystal structure of Ni3V2O8-NC included N-doped graphitic carbon. FESEM and TEM analyses imaging showed the distribution of the Ni3V2O8 nanoparticles on the layered graphitic carbon structure. TEM images showed the prepared sample has a particle size of around 10-15 nm with an enhanced active site area of 146 m2/g, as demonstrated by BET analysis. Ni3V2O8-NC nanocomposite exhibits magnetic behaviors and a magnetization saturation value of 35.99 emu/g. The electrochemical (EC) studies of the synthesized Ni3V2O8-NC electrode proceeded in an EC workstation of three-electrode. In a 5 M potassium hydroxide as an electrolyte, the cyclic voltmeter exhibited an enhanced capacitance (CS) of 915 F/g at 50 mV/s. Galvanic charge-discharge (GCD) study also exhibited a superior capacitive improvement of 1045 F/g at a current density (It) of 10 A/g. Moreover, the fabricated Ni3V2O8-NC nanocomposite displays a good power density (Pt) of 356.67 W/kg, improved ion accessibility, and substantial charge storage. At the high energy density (Et) of 67.34 W h/kg, the obtained Pt was 285.17 W/kg. The enhanced GCD rate, cycle stability, and Et of the Ni3V2O8-NC magnetic nanocomposite nominate the sample as an excellent supercapacitor electrode. This study paves the way for developing effective, efficient, affordable, and ecologically friendly electrode materials.
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Affiliation(s)
| | - Basheer M. Al-Maswari
- Department of Chemistry, Faculty of Applied Sciences and Humanities, Amran University, Yemen
- Department of Chemistry, Yuvaraja's College, University of Mysore, Mysuru- 570005 Karnataka, India
| | - Khaled Alkanad
- Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru 570 006, India
| | - N.K. Lokanath
- Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru 570 006, India
| | - R.T. Radhika
- Department of Chemistry, Maharani's Science College for Women, University of Mysore, Mysuru, India
| | - B.M. Venkatesha
- Department of Chemistry, Yuvaraja's College, University of Mysore, Mysuru- 570005 Karnataka, India
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2
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Lu C, Cao D, Zhang H, Gao L, Shi W, Guo F, Zhou Y, Liu J. Boosted Tetracycline and Cr(VI) Simultaneous Cleanup over Z-Scheme WO 3/CoO p-n Heterojunction with 0D/3D Structure under Visible Light. Molecules 2023; 28:4727. [PMID: 37375282 DOI: 10.3390/molecules28124727] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/02/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
In this study, a Z-Scheme WO3/CoO p-n heterojunction with a 0D/3D structure was designed and prepared via a simple solvothermal approach to remove the combined pollution of tetracycline and heavy metal Cr(VI) in water. The 0D WO3 nanoparticles adhered to the surface of the 3D octahedral CoO to facilitate the construction of Z-scheme p-n heterojunctions, which could avoid the deactivation of the monomeric material due to agglomeration, extend the optical response range, and separate the photogenerated electronhole pairs. The degradation efficiency of mixed pollutants after a 70 min reaction was significantly higher than that of monomeric TC and Cr(VI). Among them, a 70% WO3/CoO heterojunction had the best photocatalytic degradation effect on the mixture of TC and Cr(VI) pollutants, and the removing rate was 95.35% and 70.2%, respectively. Meanwhile, after five cycles, the removal rate of the mixed pollutants by the 70% WO3/CoO remained almost unchanged, indicating that the Z-scheme WO3/CoO p-n heterojunction has good stability. In addition, for an active component capture experiment, ESR and LC-MS were employed to reveal the possible Z-scheme pathway under the built-in electric field of the p-n heterojunction and photocatalytic removing mechanism of TC and Cr(VI). These results offer a promising idea for the treatment of the combined pollution of antibiotics and heavy metals by a Z-scheme WO3/CoO p-n heterojunction photocatalyst, and have broad application prospects: boosted tetracycline and Cr(VI) simultaneous cleanup over a Z-scheme WO3/CoO p-n heterojunction with a 0D/3D structure under visible light.
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Affiliation(s)
- Changyu Lu
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Delu Cao
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Hefan Zhang
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Luning Gao
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Weilong Shi
- School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Feng Guo
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
- School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Yahong Zhou
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
| | - Jiahao Liu
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, School of Water Resource and Environment, Hebei Geo University, Shijiazhuang 050031, China
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3
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Al-Maswari BM, Al-Zaqri N, Alkanad K, AlOstoot FH, Boshaala A, Radhika RT, Venkatesha BM. Magnesium Bismuth Ferrite Nitrogen-Doped Carbon Nanomagnetic Perovskite: Synthesis and Characterization as a High-Performance Electrode in a Supercapacitor for Energy Storage. ACS OMEGA 2023; 8:16145-16157. [PMID: 37179637 PMCID: PMC10173333 DOI: 10.1021/acsomega.3c00259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
Bismuth ferrite (BiFeO3) is regarded as an important ABO3 perovskite in the areas of energy storage and electronics. A high-performance novel MgBiFeO3-NC nanomagnetic composite (MBFO-NC) electrode was prepared using a perovskite ABO3-inspired method as a supercapacitor for energy storage. The electrochemical behavior of the perovskite BiFeO3 has been enhanced by magnesium ion doping in the basic aquatic electrolyte as the A-site. H2-TPR revealed that the doping of Mg2+ ions at the Bi3+ sites minimizes the oxygen vacancy content and improves the electrochemical characteristics of MgBiFeO3-NC. Various techniques were used to confirm the phase, structure, surface, and magnetic properties of the MBFO-NC electrode. The prepared sample showed an enhanced mantic performance and specific area with an average nanoparticle size of ∼15 nm. The electrochemical behavior of the three-electrode system was shown by cyclic voltammetry to have a significant specific capacity of 2079.44 F/g at 30 mV/s in 5 M KOH electrolyte. GCD analysis at a 5 A/g current density also showed an enhanced capacity improvement of 2159.88 F/g, which is 3.4× higher than that of pristine BiFeO3. At the power density of 5284.83 W/kg, the constructed MBFO-NC//MBFO-NC symmetric cell showed an exceptional energy density of 730.04 W h/kg. The MBFO-NC//MBFO-NC symmetric cell was employed as a direct practical application of the electrode material to entirely brighten the laboratory panel, which had 31 LEDs. This work proposes the utilization of duplicate cell electrodes made of MBFO-NC//MBFO-NC in portable devices for daily use.
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Affiliation(s)
| | - Nabil Al-Zaqri
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Khaled Alkanad
- Department
of Studies in Physics, University of Mysore, Manasagangotri, Mysuru, Karnataka 570006, India
| | - Fares Hezam AlOstoot
- Department
of Chemistry, Yuvaraja’s College, University of Mysore, Mysuru, Karnataka 570005, India
| | - Ahmed Boshaala
- Research
Centre, Manchester Salt & Catalysis, Manchester University, Unit C, 88- 90 Chorlton Rd, Manchester M15 4AN, United
Kingdom
- Libyan
Authority for Scientific Research, P.O.
Box 80045, Tripoli, Libya
| | - Rayapura Thimmegowda Radhika
- Department
of Chemistry, Maharani’s Science College for Women, University of Mysore, Mysuru, Karnataka 570005, India
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Alkanad K, Hezam A, Al-Zaqri N, Bajiri MA, Alnaggar G, Drmosh QA, Almukhlifi HA, Neratur Krishnappagowda L. One-Step Hydrothermal Synthesis of Anatase TiO 2 Nanotubes for Efficient Photocatalytic CO 2 Reduction. ACS OMEGA 2022; 7:38686-38699. [PMID: 36340094 PMCID: PMC9631917 DOI: 10.1021/acsomega.2c04211] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/03/2022] [Indexed: 05/14/2023]
Abstract
The hydrothermal dissolution-recrystallization process is a key step in the crystal structure of titania-based nanotubes and their composition. This work systematically studies the hydrothermal conditions for directly synthesizing anatase TiO2 nanotubes (ATNTs), which have not been deeply discussed elsewhere. It has been well-known that ATNTs can be synthesized by the calcination of titanate nanotubes. Herein, we found the ATNTs can be directly synthesized by optimizing the reaction temperature and time rather than calcination of titanate nanotubes, where at each temperature, there is a range of reaction times in which ATNTs can be prepared. The effect of NaOH/TiO2 ratio and starting materials was explored, and it was found that ATNTs can be prepared only if the precursor is anatase TiO2, using rutile TiO2 leads to forming titanate nanotubes. As a result, ATNTs produced directly without calcination have excellent photocatalytic CO2 reduction than titanate nanotubes and ATNTs prepared by titanate calcination.
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Affiliation(s)
- Khaled Alkanad
- Department
of Studies in Physics, University of Mysore, Manasagangotri, Mysuru570 006, India
| | - Abdo Hezam
- Leibniz
Institute for Catalysis at the University of Rostock, 18059Rostock, Germany
| | - Nabil Al-Zaqri
- Department
of Chemistry, College of Science, King Saud
University, PO Box 2455, Riyadh11451, Saudi Arabia
| | - Mohammed Abdullah Bajiri
- Department
of Studies and Research in Industrial Chemistry, School of Chemical
Sciences, Kuvempu University, Shankaraghatta577 451, India
| | - Gubran Alnaggar
- Department
of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru570006, India
| | - Qasem Ahmed Drmosh
- Interdisciplinary
Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran31261, Saudi Arabia
| | - Hanadi A. Almukhlifi
- Department
of Chemistry, Faculty of Science, University
of Tabuk, P.O. Box 741, Tabuk47512, Saudi Arabia
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Tien TM, Chung YJ, Huang CT, Chen EL. WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light Irradiation. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5616. [PMID: 36013753 PMCID: PMC9412401 DOI: 10.3390/ma15165616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/08/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
In this study, a novel tungsten disulfide diselenide (WSSe) nanocomposite by a facile hydrothermal process with great capable photocatalytic efficiency for hydrogen evolution from water and organic compound removal was discussed. The WSSe nanocomposites form heterojunctions in order to inhibit the quick recombination rate of photo-induced electrons and holes. This is considered to be a useful method in order to enhance the capability of photocatalytic hydrogen production. The hydrogen production rate of the WSSe nanocomposites approaches 3647.4 μmol/g/h, which is 12 and 11 folds the rates of the bare WS2 and WSe2, respectively. Moreover, the excellent photocatalytic performance for Methylene blue (MB) removal (88%) was 2.5 and 1.8 times higher than those of the bare WS2 and WSe2, respectively. The great photocatalytic efficiency was owing to the capable electrons and holes separation of WSSe and the construction of the heterostructure, which possessed vigorous photocatalytic oxidation and reduction potentials. The novel one-dimensional structure of the WSSe heterojunction shortens the transport pathway of the photo-induced electrons and holes. It possesses the great capable photocatalytic efficiency of the hydrogen production and organic dye removal. This study offers an insight into the route of interfacial migration and separation for induced charge carriers in order to generate clean hydrogen energy and to solve the issue of environmental pollution.
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Affiliation(s)
- Tsung-Mo Tien
- Coastal Water and Environment Center, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Yu-Jen Chung
- Department of Marine Science, Republic of China Naval Academy, Kaohsiung 81300, Taiwan
| | - Chen-Tang Huang
- Coastal Water and Environment Center, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Edward L. Chen
- Coastal Water and Environment Center, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
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Synthesis and Characterization of Hematite-Based Nanocomposites as Promising Catalysts for Indigo Carmine Oxidation. NANOMATERIALS 2022; 12:nano12142511. [PMID: 35889735 PMCID: PMC9324592 DOI: 10.3390/nano12142511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 02/05/2023]
Abstract
The hematite-based nanomaterials are involved in several catalytic organic and inorganic processes, including water decontamination from organic pollutants. In order to develop such species, a series of bimetallic hematite-based nanocomposites were obtained by some goethite composites-controlled calcination. Their composition consists of various phases such as α-FeOOH, α-Fe2O3 or γ-Fe2O3 combined with amorphous (Mn2O3, Co3O4, NiO, ZnO) or crystalline (CuO) oxides of the second transition ion from the structure. The component dimensions, either in the 10–30 or in the 100–200 nm range, together with the quasi-spherical or nanorod-like shapes, were provided by Mössbauer spectroscopy and powder X-ray diffraction as well as transmission electron microscopy data. The textural characterization showed a decrease in the specific area of the hematite-based nanocomposites compared with corresponding goethites, with the pore volume ranging between 0.219 and 0.278 cm3g−1. The best catalytic activity concerning indigo carmine removal from water in hydrogen peroxide presence was exhibited by a copper-containing hematite-based nanocomposite sample that reached a dye removal extent of over 99%, which correlates with both the base/acid site ratio and pore size. Moreover, Cu-hbnc preserves its catalytic activity even after four recyclings, when it still reached a dye removal extent higher than 90%.
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Yao C, Jin C, Wang S, Wang Y, Zhang Y, Hou Z, Yu Y, Sun C, Wei H, Wang G. Analysis of the degradation of m-cresol with Fe/AC in catalytic wet peroxide oxidation enhanced by swirl flow. CHEMOSPHERE 2022; 298:134356. [PMID: 35306055 DOI: 10.1016/j.chemosphere.2022.134356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Catalytic wet peroxide oxidation (CWPO) enhanced by swirl flow (SF-CWPO) was developed for the first time to explore the degradation of m-cresol in 3%iron/activated carbon catalysed Fenton reaction. Under the conditions of catalyst dosage of 0.6 g/L, H2O2 dosage of 1.5 mL/L, pH = 6 and reaction time of 20 min, the degradation rate of m-cresol and total organic carbon in 100 mg/L m-cresol solution reaches 81.5% and 82%, respectively. The reaction speed in the SF-CWPO system with an independently designed cyclone reactor was two times faster than the traditional CWPO systems. In addition, via liquid chromatography-mass spectrometry analysis of the degradation product, the possible degradation pathway for m-cresol was proposed. The proposed SF-CWPO can potentially be an efficient and economical method to treat organic pollutants in wastewaters.
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Affiliation(s)
- Chenxing Yao
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian 116034, PR China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Chengyu Jin
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Shengzhe Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yihuan Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian 116034, PR China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Yanan Zhang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Zuojun Hou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Yonghui Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Chenglin Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Huangzhao Wei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China.
| | - Guowen Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian 116034, PR China.
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Enhanced Photocatalytic and Photoluminescence Properties Resulting from Type-I Band Alignment in the Zn2GeO4/g-C3N4 Nanocomposites. Catalysts 2022. [DOI: 10.3390/catal12070692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Well-defined Zn2GeO4/g-C3N4 nanocomposites with a band alignment of type-I were prepared by the ultrasound-assisted solvent method, starting from g-C3N4 nanosheets and incorporating 0, 10, 20, and 40 wt% of Zn2GeO4. In this study, we have investigated in-depth the photoluminescence emission and photocatalytic activity of these nanocomposites. Our experimental results showed that an increased mass ratio of Zn2GeO4 to g-C3N4 can significantly improve their photoluminescence and photocatalytic responses. Additionally, we have noted that the broadband photoluminescence (PL) emission for these nanocomposites reveals three electronic transitions; the first two well-defined transitions (at ca. 450 nm and 488 nm) can be attributed to π*→ lone pair (LP) and π*→π transitions of g-C3N4, while the single shoulder at ca. 532 nm is due to the oxygen vacancy (Vo) as well as the hybridization of 4s and 4p orbital states in the Zn and Ge belonging to Zn2GeO4. These experimental findings are also supported by theoretical calculations performed under periodic conditions based on the density functional theory (DFT) fragment. The theoretical findings for these nanocomposites suggest a possible strain-induced increase in the Zn-O bond length, as well as a shortening of the Ge-O bond of both tetrahedral [ZnO4] and [GeO4] clusters, respectively. Thus, this disordered structure promotes local polarization and a charge gradient in the Zn2GeO4/g-C3N4 interface that enable an efficient separation and transfer of the photoexcited charges. Finally, theoretical results show a good correlation with our experimental data.
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Zhang S, Deng P, Yu L, Ni Y, Ling C, Zhu Z, Liu R. Fabrication and Formation Mechanism of Hollow-Structure Supermagnetic α-Fe2O3/Fe3O4 Heterogeneous Nanospindles. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02328-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Iqbal S, Javed M, Hassan SS, Nadeem S, Akbar A, Alotaibi MT, Alzhrani RM, Awwad NS, Ibrahium HA, Mohyuddin A. Binary Co@ZF/S@GCN S-scheme heterojunction enriching spatial charge carrier separation for efficient removal of organic pollutants under sunlight irradiation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128177] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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G. C. SS, Alkanad K, Alnaggar G, Al-Zaqri N, Bajiri MA, B. T, Dhileepan MD, Neppolian B, K. LN. Surface defect-engineered CeO2−x by ultrasound treatment for superior photocatalytic H2 production and water treatment. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01940f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We designed a CeO2−x photocatalyst under the influence of low-frequency ultrasonic waves to generate surface oxygen vacancies for efficient photocatalytic performance.
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Affiliation(s)
- Sujay Shekar G. C.
- Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru 570006, India
| | - Khaled Alkanad
- Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru 570006, India
| | - Gubran Alnaggar
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru 570006, India
| | - Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed Abdullah Bajiri
- Department of Studies and Research in Industrial Chemistry, School of Chemical Sciences, Kuvempu University, Shankaraghatta 577451, India
| | - Thejaswini B.
- PG Department of Physics, St. Philomena's College, University of Mysore, Bannimantap, Mysuru 570015, India
| | - M. D. Dhileepan
- Energy and Environmental Remediation Lab, SRM-Research Institute of Science and Technology, Chennai 603203, India
| | - Bernaurdshaw Neppolian
- Energy and Environmental Remediation Lab, SRM-Research Institute of Science and Technology, Chennai 603203, India
| | - Lokanath N. K.
- Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru 570006, India
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Shekar G. C. S, Alkanad K, Hezam A, Alsalme A, Al-Zaqri N, N. K. L. Enhanced photo-Fenton activity over a sunlight-driven ignition synthesized α-Fe2O3-Fe3O4/CeO2 heterojunction catalyst enriched with oxygen vacancies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116186] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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