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Vamvasakis I, Andreou EK, Armatas GS. Mesoporous Dual-Semiconductor ZnS/CdS Nanocomposites as Efficient Visible Light Photocatalysts for Hydrogen Generation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2426. [PMID: 37686934 PMCID: PMC10490144 DOI: 10.3390/nano13172426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/21/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
The development of functional catalysts for the photogeneration of hydrogen (H2) via water-splitting is crucial in the pursuit of sustainable energy solutions. To that end, metal-sulfide semiconductors, such as CdS and ZnS, can play a significant role in the process due to their interesting optoelectronic and catalytic properties. However, inefficient charge-carrier dissociation and poor photochemical stability remain significant limitations to photocatalytic efficiency. Herein, dual-semiconductor nanocomposites of ZnS/CdS nanocrystal assemblies (NCAs) are developed as efficient visible light photocatalysts for H2 generation. The resultant materials, synthesized via a polymer-templated self-polymerization method, comprise a unique combination of ~5-7 nm-sized metal-sulfide nanoparticles that are interlinked to form a 3D open-pore structure with large internal surface area (up to 285 m2 g-1) and uniform pores (circa 6-7 nm). By adjusting the ratio of constituent nanoparticles, the optimized ZnS/CdS catalyst with 50 wt.% ZnS content demonstrates a remarkable stability and visible light H2-evolution activity (~29 mmol g-1 h-1 mass activity) with an apparent quantum yield (AQY) of 60% at 420 nm. Photocatalytic evaluation experiments combined with electrochemical and spectroscopic studies suggest that the superior photocatalytic performance of these materials stems from the accessible 3D open-pore structure and the efficient defect-mediated charge transfer mechanism at the ZnS/CdS nanointerfaces. Overall, this work provides a new perspective for designing functional and stable photocatalytic materials for sustainable H2 production.
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Affiliation(s)
- Ioannis Vamvasakis
- Department of Materials Science and Technology, University of Crete, 70013 Heraklion, Greece; (E.K.A.); (G.S.A.)
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Su N, Bai Y, Shi Z, Li J, Xu Y, Li D, Li B, Ye L, He Y. ReS 2 Cocatalyst Improves the Hydrogen Production Performance of the CdS/ZnS Photocatalyst. ACS OMEGA 2023; 8:6059-6066. [PMID: 36816678 PMCID: PMC9933464 DOI: 10.1021/acsomega.2c08110] [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: 12/21/2022] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Photocatalysis provides an exciting solution to the current growing energy challenge. However, the activity and stability of photocatalysts are two important issues in photocatalytic applications. In this work, we have successfully developed an efficient and stable photocatalyst by loading ReS2 nanoparticles onto a CdS/ZnS heterojunction. After loading ReS2, there is a strong interaction between the CdS/ZnS heterojunction and ReS2, which accelerates the photogenerated charge migration and effectively inhibits the recombination of photogenerated electrons and holes. Accordingly, CdS/ZnS-ReS2 displays excellent photocatalytic activity and stability with the highest hydrogen production rate of 10 722 μmol g-1 h-1, which is approximately 178 times higher than that of the pure CdS and 5 times better than that of CdS/ZnS. This work not only facilitates solar energy conversion to improve photocatalytic activity and stability but also broadens the application of ReS2 as a cocatalyst.
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Affiliation(s)
- Na Su
- School
of New Energy and Materials, Southwest Petroleum
University, Chengdu 610500, China
| | - Yang Bai
- School
of New Energy and Materials, Southwest Petroleum
University, Chengdu 610500, China
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,
School of Oil & Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Zhonglian Shi
- College
of Materials and Chemical Engineering, Key Laboratory of Inorganic
Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Jiale Li
- College
of Materials and Chemical Engineering, Key Laboratory of Inorganic
Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Yixue Xu
- College
of Materials and Chemical Engineering, Key Laboratory of Inorganic
Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Daoxiong Li
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,
School of Oil & Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Baolu Li
- School
of New Energy and Materials, Southwest Petroleum
University, Chengdu 610500, China
| | - Liqun Ye
- College
of Materials and Chemical Engineering, Key Laboratory of Inorganic
Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Yi He
- School
of Chemistry and Chemical Engineering, Southwest
Petroleum University, Chengdu 610500, China
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Huang H, Lei Y, Bai L, Liang Y, Yang H. Morphology-dependent quasi 2D/2D point-flat-plate ternary CdS/MoS2/WS2 heterojunction with improved visible photocatalytic degradation of tetracycline. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Wang Y, Liu C, Kong C, Zhang F. Defect MoS2 and Ti3C2 nanosheets co-assisted CdS to enhance visible-light driven photocatalytic hydrogen production. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ghosh HNATH, Goswami T, Bhatt H, Yadav DK. Atomically Thin 2D Photocatalysts for Boosted H2 Production from the perspective of Transient Absorption Spectroscopy. Phys Chem Chem Phys 2022; 24:19121-19143. [DOI: 10.1039/d2cp02148j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Excited state photophysical processes play the most important role in deciding the efficiency of any photonic applications like solar light driven H2 evolution, which is considered to be the next...
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Islam ASMJ, Islam MS, Islam MR, Stampfl C, Park J. Thermal transport in monolayer zinc-sulfide: effects of length, temperature and vacancy defects. NANOTECHNOLOGY 2021; 32:435703. [PMID: 34243178 DOI: 10.1088/1361-6528/ac12ec] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
Of late, atomically thin two-dimensional zinc-sulfide (2D-ZnS) shows great potential for advanced nanodevices and as a substitute to graphene and transition metal di-chalcogenides owing to its exceptional optical and electronic properties. However, the functional performance of nanodevices significantly depends on the effective heat management of the system. In this paper, we explored the thermal transport properties of 2D-ZnS through molecular dynamics simulations. The impact of length, temperature, and vacancy defects on the thermal properties of 2D-ZnS are systematically investigated. We found that the thermal conductivity (TC) rises monotonically with increasing sheet length, and the bulk TC of ∼30.67 W mK-1is explored for an infinite length ZnS. Beyond room temperature (300 K), the TC differs from the usual 1/Trule and displays an abnormal, slowly declining behavior. The point vacancy (PV) shows the largest decrease in TC compared to the bi vacancy (BV) defects. We calculated phonon modes for various lengths, temperatures, and vacancies to elucidate the TC variation. Conversely, quantum corrections are used to avoid phonon modes' icing effects on the TC at low temperatures. The obtained phonon density of states (PDOS) shows a softening and shrinking nature with increasing temperature, which is responsible for the anomaly in the TC at high temperatures. Owing to the increase of vacancy concentration, the PDOS peaks exhibit a decrease for both types of defects. Moreover, the variation of the specific heat capacity and entropy with BV and PV signify our findings of 2D-ZnS TC at diverse concentrations along with the different forms of vacancies. The results elucidated in this study will be a guide for efficient heat management of ZnS-based optoelectronic and nano-electronic devices.
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Affiliation(s)
- A S M Jannatul Islam
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology, Khulna 9203, Bangladesh
| | - Md Sherajul Islam
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology, Khulna 9203, Bangladesh
- Department of Electrical and Biomedical Engineering, University of Nevada, Reno, NV 89557, United States of America
| | - Md Rasidul Islam
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology, Khulna 9203, Bangladesh
| | - Catherine Stampfl
- School of Physics, The University of Sydney, New South Wales 2006, Australia
| | - Jeongwon Park
- Department of Electrical and Biomedical Engineering, University of Nevada, Reno, NV 89557, United States of America
- School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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Navakoteswara Rao V, Ravi P, Sathish M, Lakshmana Reddy N, Lee K, Sakar M, Prathap P, Mamatha Kumari M, Raghava Reddy K, Nadagouda MN, Aminabhavi TM, Shankar MV. Monodispersed core/shell nanospheres of ZnS/NiO with enhanced H 2 generation and quantum efficiency at versatile photocatalytic conditions. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125359. [PMID: 33609871 DOI: 10.1016/j.jhazmat.2021.125359] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/31/2021] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
This investigation is first to elucidate the synthesis of mono-dispersed ZnS/NiO-core/shell nanostructures with a uniform thin layer of NiO-shell on the ZnS-nanospheres as a core under controlled thermal treatments. NiO-shell thickness varied to 8.2, 12.4, 18.2, and 24.2 nm, while the ZnS-core diameter remained stable about 96 ± 6 nm. The crystalline phase and core/shell structure of the materials were confirmed using XRD and HRTEM techniques, respectively. Optical properties through UV-vis spectroscopy analysis revealed the manifestation of red-shift in the absorption spectrum of core/shell materials, while the XPS analysis of elements elucidated their stable oxidation states in ZnS/NiO core/shell structure. The optimized ZnS/NiO-core/shell showed 1.42 times higher H2 generation (162.1 mmol h-1 g-1cat) than the pristine ZnS-core (113.2 mmol h-1 g-1cat), and 64.5 times higher than the pristine NiO-shell (2.5 mmol h-1 g-1cat). The quantum efficiency at wavelengths of 420, 365 nm, and 1.5 G air mass filters was found to be 13.5%, 25.0%, and 45.3%, respectively. Water splitting experiments was also performed without addition of any additives, which showed enhanced H2 gas evolution of 1.6 mmol h-1 g-1cat under the sunlight illumination. Photoelectrochemical measurements revealed the stable photocurrent density and minimized charge recombination in the system. The performed recyclability and reusability tests for five recycles demonstrated the excellent stability of the developed photocatalysts.
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Affiliation(s)
- Vempuluru Navakoteswara Rao
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa 516005, Andhra Pradesh, India
| | - Parnapalle Ravi
- Electrochemical Power Sources Division, Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Marappan Sathish
- Electrochemical Power Sources Division, Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Nagappagari Lakshmana Reddy
- Department of Energy Chemical Engineering, School of Nano & Materials Science and Engineering, Kyungpook National University, 2559 Gyeongsang-daero, 37224 Sangju, Republic of Korea
| | - Kiyoung Lee
- Department of Energy Chemical Engineering, School of Nano & Materials Science and Engineering, Kyungpook National University, 2559 Gyeongsang-daero, 37224 Sangju, Republic of Korea; Research Institute of Environmental Science & Technology, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, South Korea
| | - Mohan Sakar
- Centre for Nano and Material Sciences, Jain University, Bangalore 562112, Karnataka, India
| | - Pathi Prathap
- Photovoltaic Metrology Laboratory, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi 110012, India
| | - Murikinati Mamatha Kumari
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa 516005, Andhra Pradesh, India
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Mallikarjuna N Nadagouda
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH 45324, USA
| | - Tejraj M Aminabhavi
- Department of Pharmaceutics, SETs' College of Pharmacy, Dharwad 580007, Karnataka, India
| | - Muthukonda Venkatakrishnan Shankar
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa 516005, Andhra Pradesh, India.
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Bao S, Liu H, Liang H, Li C, Bai J. Electrospinned silk-ribbon-like carbon-doped TiO2 ultrathin nanosheets for enhanced visible-light photocatalytic activity. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Wang H, Li Y, Liu Z, Liu J, Yang R. Hydroxy Acid-Assisted Synthesis of Highly Dispersed Ni-NiS on CdS as Effective Photocatalyst for Hydrogen Evolution. Catal Letters 2020. [DOI: 10.1007/s10562-020-03408-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Zhu Y, Jiang X, Lin L, Wang S, Chen C. Fabrication of ZnS/CdS Heterojunction by Using Bimetallic MOFs Template for Photocatalytic Hydrogen Generation. Chem Res Chin Univ 2020. [DOI: 10.1007/s40242-020-0083-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shi W, Li M, Ren H, Guo F, Huang X, Shi Y, Tang Y. Construction of a 0D/1D composite based on Au nanoparticles/CuBi 2O 4 microrods for efficient visible-light-driven photocatalytic activity. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1360-1367. [PMID: 31355104 PMCID: PMC6633693 DOI: 10.3762/bjnano.10.134] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 06/27/2019] [Indexed: 05/15/2023]
Abstract
Photocatalysis is considered to be a promising technique for the degradation of organic pollutants. Herein, a 0D/1D composite photocatalyst consisting of Au nanoparticles (NPs) and CuBi2O4 microrods (Au/CBO) was designed and prepared by a simple thermal reduction-precipitation approach. It shows excellent photocatalytic performance in the degradation of tetracycline (TC). The maximum photocatalytic degradation rate constant for Au/CBO composites with 2.5 wt % Au NPs was 4.76 times as high as that of bare CBO microrods. Additionally, the 0D/1D Au/CBO composite also exhibited ideal stability. The significant improvement of the photocatalytic performance could be attributed to the improved light harvesting and increased specific surface area, enhancing photoresponse and providing more active sites. Our work shows a possible design of efficient photocatalysts for environmental remediation.
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Affiliation(s)
- Weilong Shi
- School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, PR China
| | - Mingyang Li
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, PR China
| | - Hongji Ren
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, PR China
| | - Feng Guo
- School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, PR China
| | - Xiliu Huang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, PR China
| | - Yu Shi
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, PR China
| | - Yubin Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, PR China
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