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Ghozza MH, Yahia IS, Hussien MSA. Structure, magnetic, and photocatalysis of La 0.7Sr 0.3MO 3 (M = Mn, Co, and Fe) perovskite nanoparticles: Novel photocatalytic materials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:61106-61122. [PMID: 37052839 PMCID: PMC10163091 DOI: 10.1007/s11356-023-26411-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/07/2023] [Indexed: 05/08/2023]
Abstract
The present study, La0.7Sr0.3MO3 (M = Mn-, Co-, and Fe-), perovskite, has successfully been synthesized via co-precipitation and sol-gel auto-combustion. XRD, SEM, and EDX characterized the prepared samples. XRD and SEM showed that the as-prepared La0.7Sr0.3MnO3 and La0.7Sr0.3CoO3 have multiphase. La0.7Sr0.3FeO3, in comparison, is nanosized, has a single-phase perovskite, and has a rather homogenous particle size distribution. Additionally, EDX mapping analysis shows that all pieces are distributed uniformly. According to X-ray diffractometer results, all calcined powders contain 100% LSF, more than 15% perovskite phase of LSC, 47% LSM, and other secondary phases, such as cobalt oxide. Aِt room temperature and magnetic field of ± 20 kG, La0.7Sr0.3MnO3 exhibited weak ferromagnetic behavior in a low magnetic field, whereas diamagnetic behavior was seen in a high magnetic field. La0.7Sr0.3FeO3 samples behave as strong ferromagnetic. On the contrary, the photodegradation of La0.7Sr0.3MnO3 is 99% compared to 75% and 91% for other samples under UVC lights of wavelength = 254 nm. The degradation rate for La0.7Sr0.3MnO3 is 0.179 higher, about 3.25 and 2.23, than the other samples. A La0.7Sr0.3MnO3 nanocomposite performs as a photocatalyst to enhance the efficiency of methylene blue photodegradation. This study boosts good UVC photocatalysts with high efficiency for different kinds of dyes. Hence, the catalyst possessed high stability and efficiency for continuous wastewater treatment.
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Affiliation(s)
- Mohamed H Ghozza
- Basic Science Department, Marg High Institute of Engineering and Modern Technology, Cairo, Egypt
| | - Ibrahim S Yahia
- Nanoscience Laboratory for Environmental and Bio-Medical Applications (NLEBA), Semiconductor Lab., Physics Department, Faculty of Education, Ain Shams University, Roxy, Cairo, 11757, Egypt
- Green Research Laboratory (GRL), Faculty of Education, Ain Shams University, Roxy, Cairo, 11757, Egypt
| | - Mai S A Hussien
- Nanoscience Laboratory for Environmental and Bio-Medical Applications (NLEBA), Semiconductor Lab., Physics Department, Faculty of Education, Ain Shams University, Roxy, Cairo, 11757, Egypt.
- Green Research Laboratory (GRL), Faculty of Education, Ain Shams University, Roxy, Cairo, 11757, Egypt.
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, 11757, Egypt.
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Mohamed RM, Ismail AA, Basaleh AS, Bawazir HA. Controllable synthesis of PtO modified mesoporous Co3O4 nanocrystals as a highly effective photocatalyst for degradation of Foron Blue dye. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113859] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Guediri MK, Chebli D, Bouguettoucha A, Bourzami R, Amrane A. Interfacial coupling effects on adsorptive and photocatalytic performances for photoresponsive graphene-wrapped SrTiO 3@Ag under UV-visible light: experimental and DFT approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:28098-28114. [PMID: 34984623 DOI: 10.1007/s11356-021-17543-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
Understanding the graphene/semiconductor/metal interactions is crucial to design innovative photocatalytic materials with efficient photocatalytic activity for environmental cleanup applications. SrTiO3 on reduced graphene oxide (rGO) with various graphene contents was successfully synthesized in this study utilizing a simple hydrothermal method, followed by decorating the surface with Ag particles by using the photodeposition process. Under UV-visible light irradiation, the resulting composites were tested for their improved photocatalytic activity to decompose methylene blue (MB). The prepared photocatalysts were characterized by XRD, SEM, EDX, DLS, FT-IR, Raman spectroscopy, and DRS. First-principle density functional theory calculations (DFT) were also carried out by using the generalized gradient approximation (GGA) and PBE functional with the addition of on-site Coulomb correction (GGA + U). The obtained SrTiO3/rGO@Ag composites showed great improvement in the photocatalytic performances over pristine SrTiO3. For the degradation reaction of MB, SrTiO3/rGO20%@Ag4% composites yielded the best photocatalytic activity with efficacy reach 94%, which was also shown that it could be recycled up to four times with nearly unchanged photocatalytic activity.
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Affiliation(s)
- Mohamed Khalil Guediri
- Département de Génie Des Procédés, Laboratoire de Génie Des Procédés Chimiques, Faculté de Technologie, Université Ferhat Abbas, Sétif-1, 19000, Sétif, Algeria
| | - Derradji Chebli
- Département de Génie Des Procédés, Laboratoire de Génie Des Procédés Chimiques, Faculté de Technologie, Université Ferhat Abbas, Sétif-1, 19000, Sétif, Algeria
| | - Abdallah Bouguettoucha
- Département de Génie Des Procédés, Laboratoire de Génie Des Procédés Chimiques, Faculté de Technologie, Université Ferhat Abbas, Sétif-1, 19000, Sétif, Algeria.
| | - Riadh Bourzami
- Research Unit On Emergent Materials, Ferhat Abbas University, Setif 1, 19000, Setif, Algeria
| | - Abdeltif Amrane
- Univ Rennes1, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000, Rennes, France
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Zhao YJ, Yang LR, Wang LT, Wang Y, Lu JX, Wang H. Asymmetric electrocarboxylation of 4′-methylacetophenone over PrCoO 3 perovskites. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00116k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Asymmetric electrocarboxylation of aromatic ketones has been achieved over PrCoO3 perovskites with the help of chiral auxiliary t-Bu(R,R)salen(Co[ii]) under CO2 atmosphere.
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Affiliation(s)
- Yi-Jun Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Li-Rong Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Le-Ting Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Ying Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Jia-Xing Lu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Huan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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Fang H, Pan Y, Yin M, Xu L, Zhu Y, Pan C. Facile synthesis of ternary Ti3C2–OH/ln2S3/CdS composite with efficient adsorption and photocatalytic performance towards organic dyes. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.120981] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Namvar F, Abass SK, Soofivand F, Salavati-Niasari M, Moayedi H. Sonochemical synthesis of Pr 6MoO 12 nanostructures as an effective photocatalyst for waste-water treatment. ULTRASONICS SONOCHEMISTRY 2019; 58:104687. [PMID: 31450361 DOI: 10.1016/j.ultsonch.2019.104687] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Synthesis of pure Pr6MoO12 nanoparticles was the aim of the present work, which was prepared by sonochemical method which is a controllable rout on size, purity, and morphology of products. The experiments were carried out under a probe as sonication source, and its power was adjusted in 30 W (9 kHz), 50 W (15 kHz), and 80 W (24 kHz) for different samples. The optimum product with the smallest size and highest purity was synthesized by changing time, power of sonication, solvent and capping agent. Besides, the formation of various phases of praseodymium molybdate was investigated in different experimental conditions that proved the presence of ammonia, sonication and calcination are necessary factors for the preparation of pure Pr6MoO12 nanoparticles. Products were characterized by various analyses such as SEM, XRD, TEM, FT-IR, DRS, and EDS. Furthermore, the photocatalytic activity of Pr6MoO12 nanoparticles under UV irradiation was studied by photodegradation of methylene blue and acid red 92 as organic pollutants. The most active photocatalytic agent was determined superoxide anion radicals and kinetics model of photocatalytic reaction was considered as pseudo-first order.
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Affiliation(s)
- Farzad Namvar
- Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P. O. Box. 87317-51167, Iran
| | - Suhad Kareem Abass
- Department of Chemistry, College of Science, University of Kerbala, Kerbala, Iraq
| | - Faezeh Soofivand
- Department of Chemistry, College of Science, University of Hormozgan, Bandar Abbas 71961, Iran
| | - Masoud Salavati-Niasari
- Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P. O. Box. 87317-51167, Iran.
| | - Hossein Moayedi
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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Abdel-Latif IA, Al-Hajji LA, Faisal M, Ismail AA. Doping Strontium into Neodymium Manganites Nanocomposites for Enhanced Visible light Driven Photocatalysis. Sci Rep 2019; 9:13932. [PMID: 31558764 PMCID: PMC6763447 DOI: 10.1038/s41598-019-50393-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 08/13/2019] [Indexed: 11/09/2022] Open
Abstract
Nd1-xSrxMnO3 nanocomposites perovskites were synthesized using sol gel method at different Sr content x = 0.3, 0.5, 0.7, and 0.9. The photocatalytic performance of the Nd1-xSrxMnO3 nanocomposites for photodegradation of Acridine orange dye (AO) was evaluated over visible light illumination. The single phase of orthorhombic pbnm was formed for x = 0.3 and 0.5; however monoclinic and orthorhombic were observed at x = 0.7 and 0.9. The Energy gap of the Nd1-xSrxMnO3 nanocomposites were estimated for all concentrations to be in the range of 3 ± 0.05 eV. The photocatalytic efficiency of Nd0.3Sr0.7MnO3 nanocomposite was 95% of the initial AO dye concentration within 3 h illumination time. The linear increase of the photodegradation rate was found in our samples as a result of the increase of Sr contents from 0.3 to 0.7wt %. Interestingly, the Nd0.3Sr0.7MnO3 content has the highest degradation rate of AO which is two times faster than undoped NdMnO3. This superior behavior in photocatalytic activity of Nd0.3Sr0.7MnO3 nanocomposite emerges from large surface area, structural anisotropy, and small particle size. These findings shows convincingly that the Nd1-xSrxMnO3 photocatalysts possess great promise for visible light driven photodegradation of AO dye.
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Affiliation(s)
- I A Abdel-Latif
- Physics Department, College of Science, Najran University, Najran, P.O. Box 1988, Najran, 11001, Saudi Arabia. .,Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia. .,Reactor Physics Department, NRC, Atomic Energy Authority, Abou Zabaal P.O. 13759, Cairo, Egypt.
| | - L A Al-Hajji
- Nanotechnologyand and Advanced Materials Program, Energy & Building Research Center, Kuwait Institute for Scientific Research (KISR), P.O. Box 24885, Safat, 13109, Kuwait
| | - M Faisal
- Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia
| | - Adel A Ismail
- Nanotechnologyand and Advanced Materials Program, Energy & Building Research Center, Kuwait Institute for Scientific Research (KISR), P.O. Box 24885, Safat, 13109, Kuwait. .,Central Metallurgical R& D Institute, CMRDI, Helwan, Cairo, Egypt.
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