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Shabbir M, Imran M, Haider A, Shahzadi I, Ahmad W, Ul-Hamid A, Nabgan W, Shahzadi A, Al-Shanini A, Al-Anazy MM, Adam M, Ikram M. Efficient Samarium-Grafted-C 3N 4-Doped α-MoO 3 Used as a Dye Degrader and Antibacterial Agent: In Silico Molecular Docking Study. ACS OMEGA 2023; 8:34805-34815. [PMID: 37779977 PMCID: PMC10535254 DOI: 10.1021/acsomega.3c03910] [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: 06/03/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023]
Abstract
This study was used to evaluate the catalytic activity (CA) and bactericidal activity of α-MoO3 and Sm-g-C3N4-doped α-MoO3 composites prepared through an efficient, cost-effective coprecipitation route. Their characteristic studies verify the formation of α-MoO3 and its composites (3, 6, and 9 mL Sm-g-C3N4-doped α-MoO3), which showed high crystallinity, as confirmed by X-ray diffraction (XRD) analysis. The production of superoxide and hydroxyl radicals due to charge transfer through α-MoO3 and g-C3N4 eventually forms electrons in g-C3N4 and holes around α-MoO3. CA against Rhodamine B (RhB) in basic medium provides maximum results compared to acidic and neutral media. The bactericidal efficacy of the (9 mL) doped sample represents a greater inhibition zone of 6.10 mm against the negative bacterial strain Escherichia coli. Furthermore, in silico studies showed that the generated nanorods may inhibit DNA gyrase and dihydropteroate synthase (DHPS) enzymes.
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Affiliation(s)
- Mohsin Shabbir
- Department
of Chemistry, Government College University, Faisalabad, Pakpattan Road, Sahiwal 57000, Punjab, Pakistan
| | - Muhammad Imran
- Department
of Chemistry, Government College University, Faisalabad, Pakpattan Road, Sahiwal 57000, Punjab, Pakistan
| | - Ali Haider
- Department
of Clinical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef, University of Agriculture, Multan 66000, Punjab, Pakistan
| | - Iram Shahzadi
- Punjab
University College of Pharmacy, Allama Iqbal Campus, University of Punjab, Lahore 54000, Pakistan
| | - Wakeel Ahmad
- Solar
Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore 54000, Punjab, Pakistan
| | - Anwar Ul-Hamid
- Core
Research Facilities, Research Institute, King Fahd University of Petroleum
& Minerals, Dhahran 31261, Saudi Arabia
| | - Walid Nabgan
- Departament
d’Enginyeria Química, Universitat
Rovira i Virgili, Av Països Catalans 26, 43007 Tarragona, Spain
| | - Anum Shahzadi
- Faculty
of Pharmacy, The University of Lahore, Lahore 54000, Pakistan
| | - Ali Al-Shanini
- College
of Petroleum and Engineering, Hadhramout
University, Mukalla 50511, Hadhramout, P. O. Box 50511, Yemen
| | - Murefah mana Al-Anazy
- Department
of Chemistry, College of Sciences, Princess
Nourah bint Abdulrahman University (PNU), P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Mohamed Adam
- Department
of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha 61421, Saudi Arabia
| | - Muhammad Ikram
- Solar
Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore 54000, Punjab, Pakistan
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Ali SA, Ahmed J, Mao Y, Ahmad T. Symbiotic MoO 3-SrTiO 3 Heterostructured Nanocatalysts for Sustainable Hydrogen Energy: Combined Experimental and Theoretical Simulations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12692-12706. [PMID: 37639496 DOI: 10.1021/acs.langmuir.3c01418] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Highly efficient Z-scheme MoO3-SrTiO3 heterostructured nanocatalytic systems were engineered via a sol-gel chemical route and exploited in green H2 energy synthesis via overall water splitting. The optical and electronic investigations corroborated the enhancement of the optoelectronic properties of SrTiO3 after the incorporation of MoO3. Emergence of the interfacial charge transfer between SrTiO3 and MoO3 is the driving force, which synergistically triggered the catalytic efficiency of MoO3-SrTiO3 heterostructures. The substitution of Ti4+ by Mo6+ ions led to the suppression of Ti3+ mid-gap states, as the potential involved in the Mo6+/Mo5+ reduction is higher than that in Ti4+/Ti3+. Theoretical studies were employed in order to comprehend the mechanism behind the advancement in the catalytic activity of MoO3-SrTiO3 porous heterostructures, which also possessed a higher surface area. 2% MoO3-SrTiO3 exhibited the optimum catalytic response toward H2 evolution via photochemical, electrochemical, and photo-electrochemical water splitting. 2% MoO3-SrTiO3 evolved H2 at the fourfold higher rate than SrTiO3 with phenomenal 16.06% AQY during photochemical water splitting and photo-degraded MB dye at nearly 88% against the 42% degradation in SrTiO3-led photocatalysis. Electrochemical and photo-electrochemical investigations also manifested the superiority of 2% MoO3-SrTiO3 toward HER, as it exhibited accelerated current and photocurrent densities of 25.02 and 27.45 mA/cm2, respectively, at the 1 V potential. EIS studies demonstrated the improved charge separation efficiency of MoO3-SrTiO3 heterostructures. This work highlights the multi-dimensional approach of obtaining green H2 energy as the sustainable energy source using MoO3@SrTiO3 heterostructures.
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Affiliation(s)
- Syed Asim Ali
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Jahangeer Ahmed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Yuanbing Mao
- Department of Chemistry, Illinois Institute of Technology, 3105 South Dearborn Street, Chicago, Illinois 60616, United States
| | - Tokeer Ahmad
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
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Singla S, Devi P, Basu S. Revolutionizing the Role of Solar Light Responsive BiVO 4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5661. [PMID: 37629952 PMCID: PMC10456310 DOI: 10.3390/ma16165661] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023]
Abstract
In this study, a series of BiVO4/BiOBr composites with varying mole ratios were successfully synthesized using a hydrothermal method. The in-situ synthesis strategy facilitated the formation of a close interfacial contact between BiVO4 and BiOBr at the depletion zone, resulting in improved charge segregation, migration, reduced charge recombination, enhanced solar light absorption capacity, promoting narrow band gap, and large surface area. This study investigates the influence of different mole ratios of BiVO4 and BiOBr in a BiVO4/BiOBr nanocomposite on the photocatalytic degradation of tetracycline (TC), a pharmaceutical pollutant, and photoelectrocatalytic water splitting (PEC) under solar light irradiation. Maximum decomposition efficiency of ~90.4% (with a rate constant of 0.0159 min-1) for TC was achieved with 0.5 g/L of 3:1 BiVO4: BiOBr (31BVBI) photocatalyst within 140 min. The degraded compounds resulting from the TC abatement were analyzed using GC-MS. Furthermore, TC standards exhibited 78.2% and 87.7% removal of chemical oxygen demand (COD) and total organic carbon (TOC), respectively, while TC tablets showed 64.6% COD removal and 73.8% TOC removal. The PEC water splitting experiments demonstrated that the 31BVBI photoanode achieved the highest photocurrent density of approximately 0.2198 mA/cm2 at 1.23 V vs. RHE, resulting in the generation of approximately 1.864 mmolcm-2 s-1 of hydrogen, while remaining stable for 21,600 s. The stability of the photocatalyst was confirmed by post-degradation characterizations, which revealed intact crystalline planes, shape, and surface area. Comparisons with existing physicochemical methods used in industries indicate that the reported photocatalyst possesses strong surface catalytic properties and has the potential for application in industrial wastewater treatment and hydrogen generation, offering an advantageous alternative to costly and time-consuming processes.
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Affiliation(s)
- Shelly Singla
- Materials Science and Sensor Application, Central Scientific Instruments Organisation, Chandigarh 160030, India
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Pooja Devi
- Materials Science and Sensor Application, Central Scientific Instruments Organisation, Chandigarh 160030, India
| | - Soumen Basu
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala 147004, India
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Abdullah U, Ali M, Pervaiz E. An Inclusive Review on Recent Advancements of Cadmium Sulfide Nanostructures and its Hybrids for Photocatalytic and Electrocatalytic Applications. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Dai W, Xiong W, Yu J, Zhang S, Li B, Yang L, Wang T, Luo X, Zou J, Luo S. Bi 2MoO 6 Quantum Dots In Situ Grown on Reduced Graphene Oxide Layers: A Novel Electron-Rich Interface for Efficient CO 2 Reduction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:25861-25874. [PMID: 32392409 DOI: 10.1021/acsami.0c04730] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Bi2MoO6 quantum dots (BM QDs, 5 nm in diameter) are evenly in situ grown on reduced graphene oxide (rGO) layers, sensitizing the graphene with high visible light response and activity for efficient solar light-driven CO2 reduction. Under irradiation, small-sized BM QDs generate active electrons and donate them to the rGO layers. Since the formation of BM QDs and the reduction of GO are undergone simultaneously, a close connection between BM QDs and rGO enables the electron injection from excited Bi2MoO6 QDs to graphene scaffolds, and abundant electrons accommodated by the rGO layers offer an electron-rich interface for CO2 reduction. With the benefit of the improved electron extraction and transport over the BM QDs/rGO interface, 84.8 μmol g-1 of methanol and 57.5 μmol g-1 of ethanol are achieved on BM QDs/rGO in 4 h with optimal composition. The total output of alcohols over BM/rGO (142.3 μmol g-1) is 2.2 and 4.4 times that achieved on unmodified Bi2MoO6 QDs (64.0 μmol g-1) and flower-like Bi2MoO6 (32.2 μmol g-1), respectively.
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Affiliation(s)
- Weili Dai
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Wuwan Xiong
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Junjie Yu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Shuqu Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Bing Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Lixia Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Tengyao Wang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Jianping Zou
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Shenglian Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
- National-Local Joint Engineering Research Center of Heavy Metals Polluants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
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Chang CC, Chi PW, Chandan P, Lin CK. Electrochemistry and Rapid Electrochromism Control of MoO 3/V 2O 5 Hybrid Nanobilayers. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2475. [PMID: 31382641 PMCID: PMC6695974 DOI: 10.3390/ma12152475] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 07/30/2019] [Accepted: 08/02/2019] [Indexed: 11/16/2022]
Abstract
MoO3/V2O5 hybrid nanobilayers are successfully prepared by the sol-gel method with a spin- coating technique followed by heat -treatment at 350 °C in order to achieve a good crystallinity. The composition, morphology, and microstructure of the nanobilayers are characterized by a scanning electron microscope (SEM) and X-ray diffractometer (XRD) that revealed the a grain size of around 20-30 nm, and belonging to the monoclinic phase. The samples show good reversibility in the cyclic voltammetry studies and exhibit an excellent response to the visible transmittance. The electrochromic (EC) window displayed an optical transmittance changes (ΔT) of 22.65% and 31.4% at 550 and 700 nm, respectively, with the rapid response time of about 8.2 s for coloration and 6.3 s for bleaching. The advantages, such as large optical transmittance changes, rapid electrochromism control speed, and excellent cycle durability, demonstrated in the electrochromic cell proves the potential application of MoO3/V2O5 hybrid nanobilayers in electrochromic devices.
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Affiliation(s)
- Chung-Chieh Chang
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Po-Wei Chi
- Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Prem Chandan
- Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Chung-Kwei Lin
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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Recent developments of metal oxide based heterostructures for photocatalytic applications towards environmental remediation. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.08.006] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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