1
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Alharthi FA, El Marghany A, Abduh NAY, Hasan I. Efficient light-driven hydrogen evolution and azo dye degradation over the GdVO 4@g-C 3N 4 heterostructure. RSC Adv 2023; 13:20417-20429. [PMID: 37426706 PMCID: PMC10326889 DOI: 10.1039/d3ra02949b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/14/2023] [Indexed: 07/11/2023] Open
Abstract
A straightforward hydrothermal technique was used for the synthesis of a g-C3N4/GdVO4 (CN/GdV) heterostructure as an alternate material for energy and environmental applications. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) were used to characterize the synthesized g-C3N4 (CN), GdVO4 (GdV), and the CN/GdV heterostructure. The characterization results revealed the distribution of GdV over CN sheets. The as-fabricated materials were tested for their capacity to evolve hydrogen gas and degrade two azo dyes (Amaranth; AMR and Reactive Red2; RR2) in the presence of visible light. When compared to pure CN and GdV, the efficiency of CN/GdV toward hydrogen evolution was high, with H2 evolution of 8234, 10 838, and 16 234 μmol g-1 in 4 h, respectively. The CN/GdV heterostructure was able to degrade 96% and 93% of AMR (60 min) and RR2 (80 min), respectively. The enhanced activity with CN/GdV could be attributed to the type-II heterostructure and decreased recombination of charge carriers. The intermediate analysis of AMR and RR2 degradation was conducted using mass spectrometry (MS). The mechanism of photocatalysis was investigated and is discussed based on the optical and electrochemical characterizations. The efficient photocatalytic characteristics of CN/GdV could promote further research on metal vanadate nanocomposite materials.
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Affiliation(s)
- Fahad A Alharthi
- Department of Chemistry, College of Science, King Saud University Riyadh-11451 Saudi Arabia +966-507976713
| | - Adel El Marghany
- Department of Chemistry, College of Science, King Saud University Riyadh-11451 Saudi Arabia +966-507976713
| | - Naaser A Y Abduh
- Department of Chemistry, College of Science, King Saud University Riyadh-11451 Saudi Arabia +966-507976713
| | - Imran Hasan
- Department of Chemistry, College of Science, King Saud University Riyadh-11451 Saudi Arabia +966-507976713
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2
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Mariyappan V, Sundaresan R, Chen SM, Ramachandran R. Ultrasensitive electrochemical sensor for the detection of carbamazepine based on gadolinium vanadate nanostructure decorated functionalized carbon nanofiber nanocomposite. CHEMOSPHERE 2022; 307:135803. [PMID: 35931253 DOI: 10.1016/j.chemosphere.2022.135803] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/04/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
The gadolinium vanadate nanostructure decorated functionalized carbon nanofiber (GdVO4/f-CNF) nanocomposite was prepared by the hydrothermal method, which is fabricated on a glassy carbon electrode (GCE) for the determination of carbamazepine (CBZ). The structural morphology of the hydrothermally synthesized GdVO4/f-CNF material was investigated by several spectroscopy methods such as FESEM, HRTEM, EDS-mapping, XRD, XPS, and Raman. Moreover, the electrical conductivity of our synthesized material was inspected by the electrochemical impedance spectroscopy (EIS) analysis, and the electrochemical performance towards CBZ was inspected by the cyclic voltammetry (CV) and amperometry (AMP) analysis under optimized conditions. The AMP determination of CBZ exhibits the lowest level LOD of 0.0018 μM and a good linear range of 0.01-157 μM. Additionally, our proposed sensor was used to determine the CBZ in the pharmaceutical and, human urine samples which have exposed the acceptable recoveries.
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Affiliation(s)
- Vinitha Mariyappan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Ruspika Sundaresan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan.
| | - Rasu Ramachandran
- Department of Chemistry, The Madura College, Vidya Nagar, Madurai, 625 011, Tamil Nadu, India
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3
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Verma N, Chundawat TS, Surolia PK, Vaya D. Photocatalytic Reduction of Cr
VI
by TiO
2
/GO Nanocomposite. ChemistrySelect 2022. [DOI: 10.1002/slct.202201275] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nidhi Verma
- Department of Applied Sciences The NorthCap University Gurugram Haryana 122017 India
| | - Tejpal S. Chundawat
- Department of Applied Sciences The NorthCap University Gurugram Haryana 122017 India
| | - Praveen K. Surolia
- Department of Chemistry Manipal University Jaipur Jaipur 303007 Rajasthan India
| | - Dipti Vaya
- Department of Chemistry Amity School of Applied Science Amity University Gurugram Haryana 122413 India
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4
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Li P, Gao S, Liu Q, Ding P, Wu Y, Wang C, Yu S, Liu W, Wang Q, Chen S. Recent Progress of the Design and Engineering of Bismuth Oxyhalides for Photocatalytic Nitrogen Fixation. ADVANCED ENERGY AND SUSTAINABILITY RESEARCH 2021. [DOI: 10.1002/aesr.202000097] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Peishen Li
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
- Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT) Key Laboratory of Water and Sediment Sciences (Ministry of Education) College of Environmental Sciences and Engineering Peking University Beijing 100871 China
| | - Shuai Gao
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
| | - Qiming Liu
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz CA 95064 USA
| | - Peiren Ding
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
| | - Yunyun Wu
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
| | - Changzheng Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environmental Remediation Beijing University of Civil Engineering and Architecture Beijing 100044 China
| | - Shaobin Yu
- Beijing Key Laboratory of Functional Materials for Building Structure and Environmental Remediation Beijing University of Civil Engineering and Architecture Beijing 100044 China
| | - Wen Liu
- Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT) Key Laboratory of Water and Sediment Sciences (Ministry of Education) College of Environmental Sciences and Engineering Peking University Beijing 100871 China
| | - Qiang Wang
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
| | - Shaowei Chen
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz CA 95064 USA
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5
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Ruomeng H, Ying J, Xiaomeng L, Yuanzheng H, Keke S. Adsorption and photocatalytic degradation of gas-phase UDMH under simulated sunlight by AgBr/TiO 2/rGA. RSC Adv 2021; 11:12583-12594. [PMID: 35423802 PMCID: PMC8696910 DOI: 10.1039/d1ra01325d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/17/2021] [Indexed: 11/21/2022] Open
Abstract
The degradation of UDMH has long been a concern for its harmful effects on humans and the environment. The current research on gas-phase UDMH treatment is limited and mainly focuses on ultraviolet light and high temperature environments, however the highly toxic substance NDMA is easily produced. In order to investigate the possibility of UDMH degradation in sunlight, AgBr/TiO2/rGA composites were prepared with the addition of different amounts of silver bromide. The highest UDMH conversion of AgBr/TiO2/rGA in humid air is 51%, much higher than the control group value of 24%, which can be ascribed to the synergy of adsorption and photocatalysis. The graphene and silver in AgBr/TiO2/rGA not only enhance the adsorption of light and UDMH, but also inhibit charge recombination and enhance electron-hole separation. More importantly, the temperature of the AgBr/TiO2/rGA composite was raised by the photothermal effect of graphene with promoted UDMH degradation efficiency. Furthermore, it is noted that NDMA was not detected in the optimal conditions.
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Affiliation(s)
- Hou Ruomeng
- High-Tech Institute of Xi'an Xi'an 710025 China +86-9178744251
| | - Jia Ying
- High-Tech Institute of Xi'an Xi'an 710025 China +86-9178744251
| | - Lv Xiaomeng
- High-Tech Institute of Xi'an Xi'an 710025 China +86-9178744251
| | - Huang Yuanzheng
- High-Tech Institute of Xi'an Xi'an 710025 China +86-9178744251
| | - Shen Keke
- High-Tech Institute of Xi'an Xi'an 710025 China +86-9178744251
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6
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He Y, Zeng L, Feng Z, Zhang Q, Zhao X, Ge S, Hu X, Lin H. Preparation, characterization, and photocatalytic activity of novel AgBr/ZIF-8 composites for water purification. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2019.11.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Shezad N, Maafa IM, Johari K, Hafeez A, Akhter P, Shabir M, Raza A, Anjum H, Hussain M, Tahir M. Carbon Nanotubes Incorporated Z-Scheme Assembly of AgBr/TiO 2 for Photocatalytic Hydrogen Production under Visible Light Irradiations. NANOMATERIALS 2019; 9:nano9121767. [PMID: 31835847 PMCID: PMC6956272 DOI: 10.3390/nano9121767] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/03/2019] [Accepted: 12/04/2019] [Indexed: 11/16/2022]
Abstract
Photocatalytic H2 production is a promising strategy toward green energy and alternative to carbon-based fuels which are the root cause of global warming and pollution. In this study, carbon nanotubes (CNTs) incorporated Z-scheme assembly of AgBr/TiO2 was developed for photocatalytic H2 production under visible light irradiations. Synthesized photocatalysts were characterized through transmission electron microscope (TEM), X-ray photoelectron spectra (XPS), X-ray diffractometer (XRD), Fourier transform infrared (FTIR), photoluminescence spectra (PL), Brunauer Emmet-Teller(BET), and UV-vis spectroscopy analysis techniques. The composite photocatalysts exhibited a H2 production of 477 ppm which was three-folds higher than that produced by TiO2. The good performance was attributed to the strong interaction of three components and the reduced charge recombination, which was 89 and 56.3 times lower than the TiO2 and AgBr/TiO2. Furthermore, the role of surface acidic and basic groups was assessed and the photocatalytic results demonstrated the importance of surface functional groups. In addition, the composites exhibited stability and reusability for five consecutive cycles of reaction. Thus, improved performance of the photocatalyst was credited to the CNTs as an electron mediator, surface functional groups, higher surface area, enhanced charge separation and extended visible light absorption edge. This work provides new development of Z-scheme photocatalysts for sustainable H2 production.
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Affiliation(s)
- Nasir Shezad
- Department of Chemical Engineering, Faculty of Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia; (N.S.); (K.J.); (H.A.)
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (A.H.); (M.S.); (A.R.)
| | - Ibrahim M. Maafa
- Department of Chemical Engineering, College of Engineering, Jazan University, Jazan 45142, Saudi Arabia
- Correspondence: (I.M.M.); (M.H.); (M.T.)
| | - Khairiraihanna Johari
- Department of Chemical Engineering, Faculty of Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia; (N.S.); (K.J.); (H.A.)
- Centre of Contaminant Control & Utilization, Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia
| | - Ainy Hafeez
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (A.H.); (M.S.); (A.R.)
| | - Parveen Akhter
- Department of Chemistry, The University of Lahore, 1-km Raiwind Road, Lahore 54000, Pakistan;
| | - Maira Shabir
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (A.H.); (M.S.); (A.R.)
| | - Ali Raza
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (A.H.); (M.S.); (A.R.)
| | - Hirra Anjum
- Department of Chemical Engineering, Faculty of Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia; (N.S.); (K.J.); (H.A.)
| | - Murid Hussain
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (A.H.); (M.S.); (A.R.)
- Correspondence: (I.M.M.); (M.H.); (M.T.)
| | - Muhammad Tahir
- Chemical Reaction Engineering Group (CREG), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai, Johor Bahru 81310 UTM, Johor, Malaysia
- Correspondence: (I.M.M.); (M.H.); (M.T.)
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8
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Sriwong C, Choojun K, Sriwong S. High photocatalytic performance of 3D porous-structured TiO2@natural rubber hybrid sheet on the removal of indigo carmine dye in water. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0900-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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9
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Han Z, Wang AJ, Zhang L, Wang ZG, Fang KM, Yin ZZ, Feng JJ. 3D highly branched PtCoRh nanoassemblies: Glycine-assisted solvothermal synthesis and superior catalytic activity for alcohol oxidation. J Colloid Interface Sci 2019; 554:512-519. [PMID: 31326784 DOI: 10.1016/j.jcis.2019.07.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 07/12/2019] [Accepted: 07/12/2019] [Indexed: 11/20/2022]
Abstract
Advanced Pt-based ternary nanocatalysts display dramatically enhanced utilization efficiency of Pt alternative to mono- and bi-counterparts, owing to the synergistic effects of the tri-metals. Herein, multicomponent uniform 3D PtCoRh highly branched nanoassemblies (HBNAs) were prepared by glycine-assisted one-pot solvothermal method in oleylamine (OAm). The effects of the precursor types, reaction time and amount of glycine were critically investigated in this synthesis. The as-prepared PtCoRh HBNAs displayed outstanding electrocatalytic activity and improved stability towards ethanol oxidation reaction (EOR) and methanol oxidation reaction (MOR) in 1 M KOH electrolyte, whose mass/specific activities were 1.75 A mg-1/4.03 mA cm-2 and 0.98 A mg-1/2.34 mA cm-2, respectively, which were remarkably higher than commercial Pt/C (0.85 A mg-1/4.03 mA cm-2 and 0.47 A mg-1/0.89 mA cm-2). This study provides some novel guidelines to fabricate advanced multimetallic electrocatalysts for practical applications in direct alcohol fuel cells (DAFCs).
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Affiliation(s)
- Zhu Han
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Ai-Jun Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Lu Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Zhi-Gang Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Ke-Ming Fang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Zheng-Zhi Yin
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
| | - Jiu-Ju Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
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10
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Giri AS, Golder AK. Ciprofloxacin degradation in photo-Fenton and photo-catalytic processes: Degradation mechanisms and iron chelation. J Environ Sci (China) 2019; 80:82-92. [PMID: 30952355 DOI: 10.1016/j.jes.2018.09.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 08/21/2018] [Accepted: 09/12/2018] [Indexed: 06/09/2023]
Abstract
Ciprofloxacin (CIP) is a broad spectrum synthetic antibiotic drug of fluoroquinolones class. CIP can act as a bidentate ligand forming iron complexes during its degradation in the photo-Fenton process (PFP). This work investigates on PFP for the degradation of CIP to understand the formation mechanism and stability of iron complexes under ultraviolet (UV)-light illumination. A comparison was made with the UV-photocatalysis (UV/TiO2) process where CIP doesn't form a complex. In PFP, the optimal dose of Fe2+ and H2O2 were found to be 1.25 and 10 mmol/L with pH of 3.5. An optimal TiO2 dose of 1.25 g/L was determined in the UV/TiO2 process. Maximum CIP removal and mineralization efficiency of 93.1% and 47.3% were obtained in PFP against 69.7% and 27.6% in the UV/TiO2 process. The mass spectra could identify seventeen intermediate products including iron-CIP complexes in PFP, and only seven intermediate products were found in the UV/TiO2 process with a majority of common products in both the processes. The proposed mechanism supported by the mass spectra bridged the routes of CIP cleavage in the PFP and UV/TiO2 process, and the decomposition pathway of Fe3+-CIP chelate complexes in PFP was also elucidated. Both in PFP and UV/TiO2 processes, the target site of HO• radical attack was the secondary-N atom present in the piperazine ring of the CIP molecule. The death of Escherichia coli bacteria was 55.7% and 66.8% in comparison to the control media after 45 min of treatment in PFP and UV/TiO2 process, respectively.
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Affiliation(s)
- Ardhendu Sekhar Giri
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, MP, 462066, India
| | - Animes Kumar Golder
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
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11
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Venkataswamy P, Sunku M, Gundeboina R, Velchuri R, Vithal M. Fabrication of Novel Ag/AgBr/Cs2Nb4O11 Ternary Composite for Visible-Light Driven Photocatalysis. Catal Letters 2019. [DOI: 10.1007/s10562-019-02827-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Kamali M, Samari F, Sedaghati F. Low-temperature phyto-synthesis of copper oxide nanosheets: Its catalytic effect and application for colorimetric sensing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109744. [PMID: 31349425 DOI: 10.1016/j.msec.2019.109744] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 05/09/2019] [Accepted: 05/12/2019] [Indexed: 02/06/2023]
Abstract
The last decade has seen a remarkable detonation in modifying chemical processes for nanomaterial synthesis to make them 'green'. Owing to the unique properties of nanomaterial and with regard to environmental issues, in this study, a new alternative and fast eco-friendly approach for the synthesis of copper oxide nanosheets (CuO-NSs) using Terminalia catappa (Indian almond) leaf extract as a renewable and non-toxic reducing agent and efficient stabilizer was reported. It is noteworthy to mention that the present fabrication process can open up the possibility of fast, low cost and high efficiency synthesis of CuO nanostructures with an interesting morphology of nanosheets at ambient temperature and pressure. Optimization of important factors such as pH, the quantity of leaf extract, copper precursor concentration, incubation time and temperature on the formation of CuO-NSs were investigated. The formation of bioreduced CuO-NSs was certified by UV-Vis spectroscopy, XRD, TEM analysis and FT-IR spectroscopy. Due to good stability, and excellent catalytic activity of the synthesized CuO-NSs, they are exerted to degrade of MB dye in water as a model color pollutant in the presence of NaBH4 at room temperature. Furthermore, color properties of CuO nanostructures aid us to apply these biosynthesized nanomaterials in the design of optical sensors for detection of Fe2+ and Fe3+ ions. In view of many advantages of the current optical sensors based on CuO-NSs, such as eco-friendly, cost-effective, and straightforward design, the sensing system presents a potential application in environmental science.
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Affiliation(s)
- Mojgan Kamali
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran
| | - Fayezeh Samari
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran.
| | - Fatemeh Sedaghati
- Department of Chemistry, Estahban Higher Education Center, Estahban, Iran
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13
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GdVO4 modified fluorine doped graphene nanosheets as dispersed photocatalyst for mitigation of phenolic compounds in aqueous environment and bacterial disinfection. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.08.077] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Chen Y, Zhao C, Ma S, Xing P, Hu X, Wu Y, He Y. Fabrication of a Z-scheme AgBr/Bi4O5Br2 nanocomposite and its high efficiency in photocatalytic N2 fixation and dye degradation. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00782b] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Z-scheme AgBr/Bi4O5Br2 nanocomposite was synthesized via a simple ion-exchange method and firstly applied in photocatalytic N2 fixation under simulated sunlight.
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Affiliation(s)
- Yijing Chen
- Department of Materials Science and Engineering
- Zhejiang Normal University
- Jinhua
- China
| | - Chunran Zhao
- Department of Materials Science and Engineering
- Zhejiang Normal University
- Jinhua
- China
| | - Sanan Ma
- Department of Materials Science and Engineering
- Zhejiang Normal University
- Jinhua
- China
| | - Pingxing Xing
- Department of Materials Science and Engineering
- Zhejiang Normal University
- Jinhua
- China
| | - Xin Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Institute of Physical Chemistry
- Zhejiang Normal University
- Jinhua
- China
| | - Ying Wu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Institute of Physical Chemistry
- Zhejiang Normal University
- Jinhua
- China
| | - Yiming He
- Department of Materials Science and Engineering
- Zhejiang Normal University
- Jinhua
- China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
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15
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Mazierski P, Sowik J, Miodyńska M, Trykowski G, Mikołajczyk A, Klimczuk T, Lisowski W, Nadolna J, Zaleska-Medynska A. Shape-controllable synthesis of GdVO 4 photocatalysts and their tunable properties in photocatalytic hydrogen generation. Dalton Trans 2018; 48:1662-1671. [PMID: 30564826 DOI: 10.1039/c8dt04225j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Novel visible light responsive materials for water splitting are essential for the efficient conversion of solar energy into hydrogen bond energy. Among other semiconductors, gadolinium orthovanadate has appropriate conduction and valence band edges positioned to split water molecules and a narrow band gap that allows the use of visible light for hydrogen generation. Thus, we present here that hydrogen evolution under visible light (λ > 420 nm) could be accomplished using hierarchical 3D GdVO4 particles, obtained by a simple, one pot hydrothermal synthesis. We found that applying various reaction components, such as EDTA-Na2 and EDTA, and adjusting the pH of the solution allow one to tune the shape of GdVO4 (such as short nanowires, long nanowires, short nanorods, long nanorods, nanoparticles and spheres - all having a tetragonal crystal structure) as well as optical and photocatalytic properties. The highest ability to photocatalytically split methanol solution into hydrogen under UV-Vis irradiation was detected for the long nanowire sample (42 μmol h-1), having almost 11 times higher efficiency in comparison with the weakest sample - short nanowires. In addition, GdVO4 spheres generated H2 more than 2 times (5.75 μmol h-1) in comparison with the short nanorod sample (2.5 μmol h-1) under visible light excitation. Photostable in three-hour work cycles, long nanowires and spheres were even able to generate hydrogen from pure water, reaching values of 17 and 3 μmol under UV-Vis and Vis light, respectively.
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Affiliation(s)
- Paweł Mazierski
- Department of Environmental Technology, University of Gdansk, 80-308 Gdansk, Poland.
| | - Jakub Sowik
- Department of Environmental Technology, University of Gdansk, 80-308 Gdansk, Poland.
| | - Magdalena Miodyńska
- Department of Environmental Technology, University of Gdansk, 80-308 Gdansk, Poland.
| | - Grzegorz Trykowski
- Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Torun, Poland
| | - Alicja Mikołajczyk
- Department of Environmental Technology, University of Gdansk, 80-308 Gdansk, Poland.
| | - Tomasz Klimczuk
- Department of Solid State Physics, Gdansk University of Technology, 80-233 Gdansk, Poland
| | - Wojciech Lisowski
- Institute of Physical Chemistry, Polish Academy of Science, 01-224 Warsaw, Poland
| | - Joanna Nadolna
- Department of Environmental Technology, University of Gdansk, 80-308 Gdansk, Poland.
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Ray SK, Dhakal D, Lee SW. Insight into sulfamethoxazole degradation, mechanism, and pathways by AgBr-BaMoO4 composite photocatalyst. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.07.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Yu C, Xing P, Wang C, Zhang X, Zhao L, He Y. Preparation of AgBr/DyVO4 composite and its excellent photocatalytic activity in RhB degradation under visible light. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3415-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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