1
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Yoshimura N, Yoshida M, Kobayashi A. Efficient Hydrogen Production by a Photoredox Cascade Catalyst Comprising Dual Photosensitizers and a Transparent Electron Mediator. J Am Chem Soc 2023; 145:6035-6038. [PMID: 36912645 PMCID: PMC10038088 DOI: 10.1021/jacs.2c13687] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
One-directional electron transport between a photocatalyst and redox mediator is crucial for achieving highly active Z-scheme water-splitting photocatalysis. Herein, a photoredox cascade catalyst that artificially mimics the electron transport chain in natural photosynthesis was synthesized from a Pt-TiO2 nanoparticle catalyst, two photosensitizers (RuCP6 and RuP6), and a visible-light-transparent electron mediator (HCRu). During photocatalytic hydrogen evolution in the presence of a redox-reversible electron donor, [Co(bpy)3]2+ (bpy = 2,2'-bipyridine), the HCRu-Zr-RuCP6-Zr-RuP6@Pt-TiO2 (PRCC-1) photocatalyst exhibited the highest reported initial (1 h) apparent quantum yield (iAQY = 2.23%) of dye-sensitized TiO2 photocatalysts to date. Furthermore, PRCC-1 successfully produced hydrogen when using hydroquinone monosulfonate (H2QS-) as the hydrogen source.
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Affiliation(s)
- Nobutaka Yoshimura
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masaki Yoshida
- Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, 1 Gakuen-Uegahara, Sanda, Hyogo 669-1337, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
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2
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Orak C, Yüksel A. Box-Behnken Design for Hydrogen Evolution from Sugar Industry Wastewater Using Solar-Driven Hybrid Catalysts. ACS OMEGA 2022; 7:42489-42498. [PMID: 36440168 PMCID: PMC9685752 DOI: 10.1021/acsomega.2c05721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Hydrogen is a clean and green fuel and can be produced from renewable sources via photocatalysis. Solar-driven hybrid catalysts were synthesized and characterized (scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), photoluminescence (PL) spectroscopy, and UV-vis diffuse reflectance spectroscopy (DSR)), and the results implied that graphene-supported LaRuO3 is a more promising photocatalyst to produce hydrogen and was used to produce hydrogen from sugar industry wastewater. To investigate the main and interaction effects of reaction parameters (pH, catalyst amount, and [H2O2]0) on the evolved hydrogen amount, the Box-Behnken experimental design model was used. The highest hydrogen evolution obtained was 6773 μmol/gcat from sugar industry wastewater at pH 3, 0.15 g/L GLRO, and 15 mM H2O2. Based on the Pareto chart for the evolved hydrogen amount using GLRO, among the main effects, the only effective parameter was the catalyst amount for the photocatalytic hydrogen evolution from sugar industry wastewater. In addition, the squares of pH and two-way interaction of pH and [H2O2]0 were also statistically efficient over the evolved hydrogen amount.
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Affiliation(s)
- Ceren Orak
- Department
of Chemical Engineering, Izmir Institute
of Technology, 35430 Urla, Izmir, Turkey
| | - Aslı Yüksel
- Department
of Chemical Engineering, Izmir Institute
of Technology, 35430 Urla, Izmir, Turkey
- Geothermal
Energy Research and Application Center, Izmir Institute of Technology, 35430 Urla, Izmir, Turkey
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3
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Li H, Yu J, Gong Y, Lin N, Yang Q, Zhang X, Wang Y. Perovskite catalysts with different dimensionalities for environmental and energy applications: A review. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Ge X, Meng G, Liu B. Visible light-Fenton degradation of tetracycline hydrochloride over oxygen-vacancy-rich LaFeO3/polystyrene: Mechanism and degradation pathways. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Removal of Methylene Blue by Crosslinked Egg White Protein/Graphene Oxide Bionanocomposite Aerogels. NANOMATERIALS 2022; 12:nano12152659. [PMID: 35957090 PMCID: PMC9370759 DOI: 10.3390/nano12152659] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/28/2022] [Accepted: 07/28/2022] [Indexed: 11/22/2022]
Abstract
Egg white protein is a non-toxic and biodegradable biopolymer that forms a gel easily via simple thermal denaturation treatment. A novel aerogel on the basis of egg white protein crosslinked with graphene oxide was prepared via a facile freeze-drying method. The structure and physicochemical characteristics of the aerogels were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and Brunauer–Emmett–Teller (BET) analysis. The adsorption properties of the aerogels were investigated by studying the influencing factors such as the solution pH, dose, temperature and contact time. The adsorption capacity of methylene blue onto the aerogels was tested, whose maximum adsorption capacity, calculated by the Langmuir isotherm equation, reached 91.7 mg/g. Adsorption kinetics studies showed that the adsorption followed the pseudo-second-order kinetic model. Thermodynamic data implied that methylene blue adsorbed by the aerogels was an exothermic and spontaneous process.
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6
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Ge X, Meng G, Liu B. Ultrasound−assisted preparation of LaFeO3/ polystyrene for efficient photo−Fenton degradation of ciprofloxacin hydrochloride. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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7
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Yoshimura N, Yoshida M, Kato M, Kobayashi A. Photocatalyst-Mediator Interface Modification by Surface-Metal Cations of a Dye-Sensitized H 2 Evolution Photocatalyst. Inorg Chem 2022; 61:11095-11102. [PMID: 35833492 DOI: 10.1021/acs.inorgchem.2c00851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To develop highly active H2 evolving dye-sensitized photocatalysts (DSPs) applicable for Z-scheme water splitting, we synthesized a series of Ru(II)-dye-double-layered DSPs, X'-RuCP6-Zr-RuP6@Pt-TiO2 (X'-DSP) with different surface-bound metal cations (X' = Fe2+, Y3+, Zr4+, Hf4+, and Bi3+). In 0.5 M KI aqueous solution, the photocatalytic H2 evolution activity under blue light irradiation (λ = 460 ± 15 nm) increased in the following order: nonmetal-modified DSP, H+-DSP (turn over number for 6 h irradiation = 35.2) < Fe2+-DSP (54.9) ≈ Bi3+-DSP (55.2) < Hf4+-DSP (65.5) ≈ Zr4+-DSP (68.3) ≈ Y3+-DSP (71.5), suggesting that the redox-inactive and highly charged metal cations tend to improve the electron donation from the iodide electron mediator. On the other hand, DSPs having heavy metal cations, Hf4+-DSP (18.4) and Bi3+-DSP (16.6), exhibited better activity under green light irradiation (λ = 530 ± 15 nm) than Zr4+-DSP (15.7) and H+-DSP (7.80), implying the contribution of a heavy atom effect of the surface-bound metal cation to partially allow the spin-forbidden metal-to-ligand charge-transfer excitation.
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Affiliation(s)
- Nobutaka Yoshimura
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masaki Yoshida
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masako Kato
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan.,Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
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8
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Liu W, Li X, Chu X, Zuo S, Gao B, Yao C, Li Z, Chen Y. Boosting photocatalytic reduction of nitrate to ammonia enabled by perovskite/biochar nanocomposites with oxygen defects and O-containing functional groups. CHEMOSPHERE 2022; 294:133763. [PMID: 35114260 DOI: 10.1016/j.chemosphere.2022.133763] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/10/2022] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
Photocatalytic ammonia synthesis from waste nitrate has emerged as a promising strategy in water treatment; however, the conversion and selectivity still remain a great challenge. Herein, recyclable magnetic perovskite (LaFeO3)/biochar nanocomposites were successfully synthesized by the co-pyrolysis of the lotus biomass and Fe/La salts without extra organic complexants. Results showed that the lotus interacted with the iron ions (Fe3+) and the lanthanum ions (La3+) changing the surface and structural characteristics of catalysts. Oxygen defects of LaFeO3 were enhanced due to biomass introduction, which accelerated the separation of electron-hole pairs. On the other hand, Fe/La salts participated in the modification process of the biochar surface during the carbonization, which promoted the exposure of oxygen-containing functional groups and aromatic structures facilitating the nitrate adsorption. Notably, the redox-active quinone/phenol groups on the biochar surface contributed to the photogenerated electrons exchange favoring the ammonium ion (NH4+) selectivity as direct electron donor. Nitrate conversion reached 98% and ammonia selectivity reached 97% over the LaFeO3/biochar photocatalyst under visible light irradiation, when the mass ratio of lotus and Fe/La salts was optimized. Our findings may potentially provide a green and cost-effective way for ammonia recovery from nitrate contaminants.
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Affiliation(s)
- Wei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, PR China
| | - Xiazhang Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, PR China; School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0373, USA.
| | - Xini Chu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, PR China
| | - Shixiang Zuo
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, PR China
| | - Bingying Gao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, PR China
| | - Chao Yao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, PR China
| | - Zhongyu Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, PR China
| | - Yongsheng Chen
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0373, USA
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9
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Li L, Chen J, Gao H, Liu F, Li Z, Li Q, Zhang J. Hierarchical sandwich NiFe layered double hydroxide/reduced graphene oxide for high energy density asymmetric supercapacitors. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Ding X, Chen T, He Y, Zhu J, Yang Y, Chen J, Nasori N, Liu Y, Chen M, Cao D. The strong interfacial coupling effect of Nafion between LaFeO 3/electrolyte for efficient photoelectrochemical water reduction. NANOTECHNOLOGY 2021; 33:105404. [PMID: 34847539 DOI: 10.1088/1361-6528/ac3e8c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/30/2021] [Indexed: 06/13/2023]
Abstract
Insufficient reduction capability and scanty active substance limit the application of LaFeO3(LFO) in the field of photoelectrochemical (PEC) water splitting. This work demonstrates a judicious combination of LFO/Nafion composite to improve the PEC performance by a unique dip-coating method on the FTO. The photocurrent density of the LFO electrode coated with two layers Nafion increased to -23.9μA cm-2at 0.47 V versus RHE, which is 4.1 times that of the pristine LFO. Based on the experimental data and theoretical analysis, the improvement of the PEC properties is attributed to the construction of organic/inorganic units, which would enable strong electronic coupling and favor interfacial charge transfer, resulting in a 30 mV downward shift of its flat band potential. Thus, the conduction band gets closer to the proton reduction potential of H+to H2after decoration with Nafion, resulting in a stronger photogenerated electron reduction ability. Our study provides insights that organic materials modify semiconductor photoelectrodes for accelerating charge kinetics.
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Affiliation(s)
- Xinran Ding
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Tong Chen
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Yanfang He
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Jianfei Zhu
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Ying Yang
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Jie Chen
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
- Sinosteel New Materials Co. Ltd, Sinosteel Nanjing Advanced Materials Research Institute Co. Ltd, Maanshan 243000, People's Republic of China
| | - Nasori Nasori
- Laboratory Medical Physics and Biophysics, Department of Physics, Facility of Sciences and Data Analytic, Sepuluh Nopember Technology Institute, Surabaya 60111, Indonesia
| | - Yuan Liu
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Mingming Chen
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Dawei Cao
- Department of Physics, Jiangsu University, Zhenjiang 212013, People's Republic of China
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11
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Saravanan A, Senthil Kumar P, Khoo KS, Show PL, Femina Carolin C, Fetcia Jackulin C, Jeevanantham S, Karishma S, Show KY, Lee DJ, Chang JS. Biohydrogen from organic wastes as a clean and environment-friendly energy source: Production pathways, feedstock types, and future prospects. BIORESOURCE TECHNOLOGY 2021; 342:126021. [PMID: 34600315 DOI: 10.1016/j.biortech.2021.126021] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Microbial fermentation of organic matter under anaerobic conditions is currently the prominent pathway for biohydrogen production. Organic matter present in waste residues is regarded as an economic feedstock for biohydrogen production by dark and photo fermentative bacteria. Agricultural residues, fruit wastes, vegetable wastes, industrial wastewaters, and other livestock residues are some of the organic wastes most commonly used for biohydrogen production due to their higher organic content and biodegradability. Appropriate pretreatments are required to enhance the performance of biohydrogen from complex organic wastes. Biohydrogen production could also be enhanced by optimizing operation conditions and the addition of essential nutrients and nanoparticles. This review describes the pathways of biohydrogen production, discusses the effect of organic waste sources used and microbes involved on biohydrogen production, along with addressing the key parameters, advantages, and difficulties in each biohydrogen production pathway.
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Affiliation(s)
- A Saravanan
- Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India
| | - Kuan Shiong Khoo
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Pau-Loke Show
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - C Femina Carolin
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India
| | - C Fetcia Jackulin
- Department of Chemical Engineering, Adhiyamaan College of Engineering (Autonomous), Hosur 635130, Tamil Nadu, India
| | - S Jeevanantham
- Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - S Karishma
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, India
| | - Kuan-Yeow Show
- Puritek Research Institute, Puritec Co., Ltd., Nanjing, China
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan; College of Technology and Engineering, National Taiwan Normal University, Taipei, Taiwan; Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tang, Hong Kong
| | - Jo-Shu Chang
- Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, Taiwan; Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan.
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12
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Orak C, Yüksel A. Photocatalytic Hydrogen Energy Evolution from Sugar Beet Wastewater. ChemistrySelect 2021. [DOI: 10.1002/slct.202103342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ceren Orak
- Izmir Institute of Technology Department of Chemical Engineering 35430 Urla Izmir TURKEY
| | - Asli Yüksel
- Izmir Institute of Technology Department of Chemical Engineering 35430 Urla Izmir TURKEY
- Izmir Institute of Technology Geothermal Energy Research and Application Center Urla Izmir TURKEY
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13
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Enhanced performance of lanthanum orthoferrite/chitosan nanocomposites for adsorptive photocatalytic removal of Reactive Black 5. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0835-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Removal of Uranyl Ion from Wastewater by Magnetic Adsorption Material of Polyaniline Combined with CuFe2O4. ADSORPT SCI TECHNOL 2021. [DOI: 10.1155/2021/5584158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The magnetic adsorption material of polyaniline (PANI) with amino functional group combined with CuFe2O4 (CuFe2O4/PANI nanocomposite) has been described in this work. It has been characterized by TEM, XRD, XPS, BET, FTIR, and VSM, respectively. Significantly, it exhibits extremely high maximum adsorption capacity (322.6 mg/g) for removal of uranyl ions from wastewater at a pH of 4. The adsorption process is consistent with the quasisecond-order kinetic equation, and the isotherm and kinetic data are accurately described by the Langmuir isothermal adsorption model. Furthermore, the magnetic CuFe2O4/PANI displays stable adsorption performance for uranyl ions after five cycles of recovery in acid medium, which indicates it possesses good recovery due to its magnetism and excellent regeneration ability for reusability.
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15
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Alsowayigh MM, Timco GA, Borilovic I, Alanazi A, Vitorica-Yrezabal IJ, Whitehead GFS, McNaughter PD, Tuna F, O'Brien P, Winpenny REP, Lewis DJ, Collison D. Heterometallic 3d-4f Complexes as Air-Stable Molecular Precursors in Low Temperature Syntheses of Stoichiometric Rare-Earth Orthoferrite Powders. Inorg Chem 2020; 59:15796-15806. [PMID: 33044071 DOI: 10.1021/acs.inorgchem.0c02249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Four 3d-4f hetero-polymetallic complexes [Fe2Ln2((OCH2)3CR)2(O2CtBu)6(H2O)4] (where Ln = La (1 and 2) and Gd (3 and 4); and R = Me (1 and 3) and Et (2 and 4)) are synthesized and analyzed using elemental analysis, Fourier transform infrared spectroscopy, thermogravimetric analysis, and SQUID magnetometry. Crystal structures are obtained for both methyl derivatives and show that the complexes are isostructural and adopt a defective dicubane topology. The four heavy metals are connected with two alkoxide bridges. These four precursors are used as single-source precursors to prepare rare-earth orthoferrite pervoskites of the form LnFeO3. Thermal decomposition in a ceramic boat in a tube furnace gives orthorhombic LnFeO3 powders using optimized temperatures and decomposition times: LaFeO3 formed at 650 °C over 30 min, whereas GdFeO3 formed at 750 °C over 18 h. These materials are structurally characterized using powder X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive X-ray map spectroscopy, and SQUID magnetometry. EDX spectroscopy mapping reveals a homogeneous spatial distribution of elements for all four materials consistent with LnFeO3. Magnetic measurements on complexes 1-4 confirm the presence of weak antiferromagnetic coupling between the central Fe(III) ions of the clusters and negligible ferromagnetic interaction with peripheral Gd(III) ions in 3 and 4. Zero-field-cooled and field-cooled measurements of magnetization of LaFeO3 and GdFeO3 in the solid-state suggest that both materials are ferromagnetic, and both materials show open magnetic hysteresis loops at 5 and 300 K, with Msat higher than previously reported for these nanomaterials. We conclude that this is a new and facile low temperature route to these important magnetic materials that is potentially universal, limited only by what metals can be programmed into the precursor complexes.
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Affiliation(s)
- Marwah M Alsowayigh
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom.,Chemistry Department, College of Science, King Faisal University, P.O. 380, Al-Ahsa 31982, Kingdom of Saudia Arabia
| | - Grigore A Timco
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Ivana Borilovic
- Photon Science Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Abdulaziz Alanazi
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Inigo J Vitorica-Yrezabal
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - George F S Whitehead
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Paul D McNaughter
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Floriana Tuna
- Photon Science Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Paul O'Brien
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom.,Department of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Richard E P Winpenny
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - David J Lewis
- Department of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - David Collison
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
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16
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Acharya S, Kandi D, Parida K. CdS QD Decorated LaFeO
3
Nanosheets for Photocatalytic Application Under Visible Light Irradiation. ChemistrySelect 2020. [DOI: 10.1002/slct.202000220] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Saumyaprava Acharya
- Centre for Nano Science and Nano Technology SOA University Bhubaneswar 751030, Odisha India
| | - Debasmita Kandi
- Centre for Nano Science and Nano Technology SOA University Bhubaneswar 751030, Odisha India
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology SOA University Bhubaneswar 751030, Odisha India
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17
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Gopalan Sibi M, Verma D, Kim J. Magnetic core–shell nanocatalysts: promising versatile catalysts for organic and photocatalytic reactions. CATALYSIS REVIEWS 2020. [DOI: 10.1080/01614940.2019.1659555] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Malayil Gopalan Sibi
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
| | - Deepak Verma
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
| | - Jaehoon Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
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18
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Kondrashkova IS, Martinson KD, Zakharova NV, Popkov VI. Synthesis of Nanocrystalline HoFeO3 Photocatalyst via Heat Treatment of Products of Glycine-Nitrate Combustion. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363218120022] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Constructing a direct Z-scheme La2NiO4/g-C3N4 hybrid photocatalyst with boosted visible light photocatalytic activity. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.02.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Acharya S, Mansingh S, Parida KM. The enhanced photocatalytic activity of g-C3N4-LaFeO3 for the water reduction reaction through a mediator free Z-scheme mechanism. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00115k] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A g-C3N4/LaFeO3 solid–solid interface showing enhanced hydrogen production ability under visible-light irradiation through a mediator free Z-Scheme mechanism.
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Affiliation(s)
- S. Acharya
- Centre for Nano Science and Nano Technology SOA University
- Bhubaneswar—751030
- India
| | - S. Mansingh
- Centre for Nano Science and Nano Technology SOA University
- Bhubaneswar—751030
- India
| | - K. M. Parida
- Centre for Nano Science and Nano Technology SOA University
- Bhubaneswar—751030
- India
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