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P J, SP K, Kungumadevi L, Rathinam Y, Ganesan R, Kandasami A, Senthil TS. γ-Ray-Induced Photocatalytic Activity of Bi-Doped PbS toward Organic Dye Removal under Sunlight. ACS OMEGA 2023; 8:47427-47439. [PMID: 38144044 PMCID: PMC10734000 DOI: 10.1021/acsomega.3c02855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 12/26/2023]
Abstract
Photocatalysts based on semiconducting chalcogenides due to their adaptable physio-chemical characteristics are attracting attention. In this work, Bi-doped PbS (henceforth PbS:Bi) was prepared using a straightforward chemical precipitation approach, and the influence of γ-irradiation on PbS's photocatalytic ability was investigated. Synthesized samples were confirmed structurally and chemically. Pb(1-x)BixS (x = 0, 0.005, 0.01, 0.02) samples that were exposed to gamma rays showed fine-tuning of the optical bandgap for better photocatalytic action beneath visible light. The photocatalytic degradation rate of the irradiated Pb0.995Bi0.005S sample was found to be 1.16 times above that of pure PbS. This is due to the occupancy of Bi3+ ions at surface lattice sites as a result of their lower concentration in PbS, which effectively increases interface electron transport and the annealing impact of gamma irradiation. Scavenger tests show that holes are active species responsible for deterioration of the methylene blue. The irradiated PbS:Bi demonstrated high stability after being used repeatedly for photocatalytic degradation.
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Affiliation(s)
- Jeya P
- Department
of Physics, CMS College, MG University, Kottayam, Kerala 686560, India
- Department
of Physics, Mother Teresa Women’s
University, Kodaikanal 624102, India
| | - Keerthana SP
- Department
of Physics, Alagappa University, Karaikudi, Tamil Nadu 630003, India
| | - L. Kungumadevi
- Department
of Physics, Mother Teresa Women’s
University, Kodaikanal 624102, India
| | - Yuvakkumar Rathinam
- Department
of Physics, Alagappa University, Karaikudi, Tamil Nadu 630003, India
| | - Ravi Ganesan
- Department
of Physics, Alagappa University, Karaikudi, Tamil Nadu 630003, India
| | - Asokan Kandasami
- Materials
Science Division, Inter-University Accelerator
Centre, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - T. S. Senthil
- Department
of Physics, Erode Sengunthar Engineering
College, Erode 638057, India
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2
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Engineering Gas–Solid–Liquid Triple-Phase Interfaces for Electrochemical Energy Conversion Reactions. ELECTROCHEM ENERGY R 2022. [DOI: 10.1007/s41918-022-00133-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Hong Y, Venkateshalu S, Jeong S, Tomboc GM, Jo J, Park J, Lee K. Galvanic replacement reaction to prepare catalytic materials. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yongju Hong
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
| | - Sandhya Venkateshalu
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
| | - Sangyeon Jeong
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
| | - Gracita M. Tomboc
- Green Hydrogen Lab (GH2Lab) Institute for Hydrogen Research (IHR), Université du Québec à Trois−Rivières (UQTR) Québec Canada
| | - Jinhyoung Jo
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
| | - Jongsik Park
- Department of Chemistry Kyonggi University Suwon Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul Republic of Korea
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Chen Q, Nie Y, Ming M, Fan G, Zhang Y, Hu JS. Sustainable synthesis of supported metal nanocatalysts for electrochemical hydrogen evolution. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63652-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Facile synthesis of porous iridium-palladium-plumbum wire-like nanonetworks with boosted catalytic performance for hydrogen evolution reaction. J Colloid Interface Sci 2020; 580:99-107. [DOI: 10.1016/j.jcis.2020.06.124] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 11/18/2022]
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6
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Akbayrak M, Önal AM. Binder- free iridium based electrocatalysts: Facile preparation, high activity and outstanding stability for hydrogen evolution reaction in acidic medium. J Colloid Interface Sci 2020; 580:11-20. [DOI: 10.1016/j.jcis.2020.06.117] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/24/2020] [Accepted: 06/27/2020] [Indexed: 11/26/2022]
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Understanding Surface Modulation to Improve the Photo/Electrocatalysts for Water Oxidation/Reduction. Molecules 2020; 25:molecules25081965. [PMID: 32340202 PMCID: PMC7221846 DOI: 10.3390/molecules25081965] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/17/2020] [Accepted: 04/18/2020] [Indexed: 12/16/2022] Open
Abstract
Water oxidation and reduction reactions play vital roles in highly efficient hydrogen production conducted by an electrolyzer, in which the enhanced efficiency of the system is apparently accompanied by the development of active electrocatalysts. Solar energy, a sustainable and clean energy source, can supply the kinetic energy to increase the rates of catalytic reactions. In this regard, understanding of the underlying fundamental mechanisms of the photo/electrochemical process is critical for future development. Combining light-absorbing materials with catalysts has become essential to maximizing the efficiency of hydrogen production. To fabricate an efficient absorber-catalysts system, it is imperative to fully understand the vital role of surface/interface modulation for enhanced charge transfer/separation and catalytic activity for a specific reaction. The electronic and chemical structures at the interface are directly correlated to charge carrier movements and subsequent chemical adsorption and reaction of the reactants. Therefore, rational surface modulation can indeed enhance the catalytic efficiency by preventing charge recombination and prompting transfer, increasing the reactant concentration, and ultimately boosting the catalytic reaction. Herein, the authors review recent progress on the surface modification of nanomaterials as photo/electrochemical catalysts for water reduction and oxidation, considering two successive photogenerated charge transfer/separation and catalytic chemical reactions. It is expected that this review paper will be helpful for the future development of photo/electrocatalysts.
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Trimetallic PtRhCo petal-assembled alloyed nanoflowers as efficient and stable bifunctional electrocatalyst for ethylene glycol oxidation and hydrogen evolution reactions. J Colloid Interface Sci 2020; 559:206-214. [DOI: 10.1016/j.jcis.2019.10.024] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/05/2019] [Accepted: 10/08/2019] [Indexed: 11/23/2022]
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Kim J, Jun M, Choi S, Jo J, Lee K. Reactive nanotemplates for synthesis of highly efficient electrocatalysts: beyond simple morphology transfer. NANOSCALE 2019; 11:20392-20410. [PMID: 31651011 DOI: 10.1039/c9nr05750a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Efficient electrocatalysts for energy conversion in general, and fuel cell operation and water electrolysis in particular, are pivotal for carbon-free hydrogen production. While the requirements of successful electrocatalysts include a high number density of catalytically active sites, high surface-to-volume ratio, inherently high catalytic activity, and robustness of the catalyst surface structure under harsh operating conditions, it is extremely difficult to synthesize nanocatalysts that could possess all these structural characteristics. Nanotemplate-mediated synthesis, namely, the coating or filling of a template with a desired material phase followed by the removal of the template, has captured the interest of researchers because of the ease of creating hollow-structured nanocatalysts with a high surface to volume ratio. Recent studies, however, have revealed that nanotemplates could be more than just passive supports because they greatly affect catalytic performance by creating an unusual synergy between the substrate and catalyst and by providing dopants to the actual catalyst phase owing to their reactive nature. In this review, we discuss the most notable recent advances in the nanotemplate-based synthesis of electrocatalysts as well as the unusual effects of nanotemplates on the performance of nanocatalysts. We also provide an outlook for this fledgling field so that future research efforts could be focused on the development of practically useful electrocatalysts that could shape the future of energy technologies.
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Affiliation(s)
- Jun Kim
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
| | - Minki Jun
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
| | - Songa Choi
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
| | - Jinhyoung Jo
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
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Joo J, Kim T, Lee J, Choi SI, Lee K. Morphology-Controlled Metal Sulfides and Phosphides for Electrochemical Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806682. [PMID: 30706578 DOI: 10.1002/adma.201806682] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/01/2018] [Indexed: 05/20/2023]
Abstract
Because H2 is considered a promising clean energy source, water electrolysis has attracted great interest in related research and technology. Noble-metal-based catalysts are used as electrode materials in water electrolyzers, but their high cost and low abundance have impeded them from being used in practical areas. Recently, metal sulfides and phosphides based on earth-abundant transition metals have emerged as promising candidates for efficient water-splitting catalysts. Most studies have focused on adjusting the composition of the metal sulfides and phosphides to enhance the catalytic performance. However, morphology control of catalysts, including faceted and hollow structures, is much less explored for these systems because of difficulties in the synthesis, which requires a deep understanding of the nanocrystal growth process. Herein, representative synthetic methods for morphology-controlled metal sulfides and phosphides are introduced to provide insights into these methodologies. The electrolytic performance of morphology-controlled metal sulfide- and phosphide-based nanocatalysts with enhanced surface area and intrinsically high catalytic activity is also summarized and the future research directions for this promising catalyst group is discussed.
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Affiliation(s)
- Jinwhan Joo
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Taekyung Kim
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Jaeyoung Lee
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Sang-Il Choi
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
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Chen HY, Jin MX, Zhang L, Wang AJ, Yuan J, Zhang QL, Feng JJ. One-pot aqueous synthesis of two-dimensional porous bimetallic PtPd alloyed nanosheets as highly active and durable electrocatalyst for boosting oxygen reduction and hydrogen evolution. J Colloid Interface Sci 2019; 543:1-8. [PMID: 30772534 DOI: 10.1016/j.jcis.2019.01.122] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 12/29/2022]
Abstract
Recently, two-dimensional materials have gained increasing research attention due to their large surface area, high physical and chemical stability, and excellent electrocatalytic performances. Herein, we reported a simple and fast one-pot aqueous method for synthesis of two-dimensional porous bimetallic PtPd alloyed nanosheets (NSs) using benzyldimethylhexadecylammonium chloride (HDBAC) as the capping agent and stabilizer. The formation mechanism involved the oriented attachment and self-assembly. The PtPd NSs exhibited excellent oxygen reduction reaction (ORR) activity with the positive shift (c.a. 43 mV) of the half-wave potential in 0.1 M KOH solution, clearly outperforming that of commercial Pt/C (50 wt%). Moreover, the as-prepared catalyst displayed 2.4 times enlargement in mass activity (MA, 382.10 mA mg-1) and 3.5 times enhancement in specific activity (SA, 0.95 mA cm-2) relative to those of Pt/C at 0.80 V. Meanwhile, the as-obtained catalyst demonstrated highly boosted hydrogen evolution reaction (HER) in 0.5 M H2SO4 electrolyte, surpassing that of Pt/C. These results reveal the practical applications of the catalyst in energy storage and conversion.
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Affiliation(s)
- Hong-Yan Chen
- 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
| | - Mi-Xue Jin
- 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
| | - 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
| | - Junhua Yuan
- 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
| | - Qian-Li Zhang
- School of Chemistry and Biological Engineering, Suzhou University of Science and Technology, Suzhou 215009, 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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12
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Park J, Kwon T, Kim J, Jin H, Kim HY, Kim B, Joo SH, Lee K. Hollow nanoparticles as emerging electrocatalysts for renewable energy conversion reactions. Chem Soc Rev 2018; 47:8173-8202. [PMID: 30009297 DOI: 10.1039/c8cs00336j] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
While the realization of clean and sustainable energy conversion systems primarily requires the development of highly efficient catalysts, one of the main issues had been designing the structure of the catalysts to fulfill minimum cost as well as maximum performance. Until now, noble metal-based nanocatalysts had shown outstanding performances toward the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). However, the scarcity and high cost of them impeded their practical use. Recently, hollow nanostructures including nanocages and nanoframes had emerged as a burgeoning class of promising electrocatalysts. The hollow nanostructures could expose a high proportion of active surfaces while saving the amounts of expensive noble metals. In this review, we introduced recent advances in the synthetic methodologies for generating noble metal-based hollow nanostructures based on thermodynamic and kinetic approaches. We summarized electrocatalytic applications of hollow nanostructures toward the ORR, OER, and HER. We next provided strategies that could endow structural robustness to the flimsy structural nature of hollow structures. Finally, we concluded this review with perspectives to facilitate the development of hollow nanostructure-based catalysts for energy applications.
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Affiliation(s)
- Jongsik Park
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea.
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