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Ren D, Zhu B, Xiong J, Huang K, Cai M, Liu C, Bai X, Liu T, Zhang X, Zou B. A novel design of copper selenide/zinc selenide/Nitrogen-doped carbon derived from MOF for sulfadiazine adsorption: Performance and mechanism. J Colloid Interface Sci 2024; 669:804-815. [PMID: 38749219 DOI: 10.1016/j.jcis.2024.05.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/22/2024] [Accepted: 05/08/2024] [Indexed: 05/27/2024]
Abstract
Herein, a novel copper selenide/zinc selenide/Nitrogen-doped carbon (Cu2Se/ZnSe/NC) sphere was constructed via a combination of cation exchange, selenization and carbonization approaches with zinc-based metal-organic frameworks (ZIF-8) as precursor for sulfadiazine (SDZ) removal. Compared with the ZnSe/NC, the defective Cu2Se/ZnSe interface in the optimizing Cu-ZnSe/NC2 sample caused a remarkably improved adsorption performance. Notably, the adsorption capacity of 129.32 mg/g was better than that of mostly reported adsorbents for SDZ. And the adsorption referred to multiple-layer physical-chemical process that was spontaneous and exothermic. Besides, the Cu-ZnSe/NC2 displayed fast adsorption equilibrium of about 20 min and significant anti-interference ability for inorganic ions. Specially, the adsorbent possessed excellent stability and reusability, which could also be applied for rhodamine B (RhB), methylene blue (MB), and methyl orange (MO) dyes removal. Ultimately, the charge redistribution of Cu2Se/ZnSe interface greatly contributes the superior adsorption performance for SDZ, in which electrostatic attraction occupied extremely crucial status as compared to π-π electron-donor-acceptor (π-π EDA) interaction and hydrogen bonding (H-bonding), as revealed by the density function theory (DFT) calculations and experimental results. This study can provide a guideline for design of high-efficient adsorbent with interfacial charge redistribution.
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Affiliation(s)
- Donglou Ren
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Bin Zhu
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Jun Xiong
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Kai Huang
- Guangxi Vocational & Technical Institute of Industry, Nanning 530001 Guangxi, China
| | - Muzhi Cai
- Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province, Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou, 310018, China
| | - Cong Liu
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Xiaojing Bai
- School of Materials Science and Engineering, Anyang Institute of Technology, Anyang, Henan, 455000, China
| | - Tao Liu
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Xianghua Zhang
- ISCR (Institut des Sciences Chimiques de Rennes)-CNRS, UMR 6226, Univ. Rennes, F-35000, Rennes, France
| | - Bingsuo Zou
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
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Sakane S, Miura T, Munakata K, Morikawa Y, Miwa S, Yamanaka R, Sugai T, Ayukawa A, Udono H, Tanaka H. Precise synthesis of copper selenide nanowires with tailored Cu vacancies through photo-induced reduction for thermoelectric applications. NANOSCALE ADVANCES 2024; 6:3299-3305. [PMID: 38933852 PMCID: PMC11197438 DOI: 10.1039/d4na00156g] [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: 02/24/2024] [Accepted: 04/24/2024] [Indexed: 06/28/2024]
Abstract
Nanostructuring in α-Cu2Se while optimizing carrier concentration holds the promise of realizing further high thermoelectric performance at near room temperature. Nevertheless, controlling the amounts of Cu vacancies, which work as acceptors, in nanostructures is considerably more intricate than in bulk materials. Hence, controlling the amounts of Cu vacancies while maintaining the α-phase and nanostructure shape poses a formidable challenge. In this study, we synthesized Cu2+x Se nanowires (NWs) with various amounts of Cu vacancies at room temperature by the photoreduction method and investigated their thermoelectric properties. Cu2+x Se NWs exhibited a comparable thermoelectric power factor to that of the polycrystalline films fabricated at higher temperature. The achievement of the high power factor despite low-temperature fabrication is attributed to the precise synthesis of Cu2+x Se NWs with various amounts of Cu vacancies. We also investigated the reaction process of Cu2.00Se NWs in detail by observing the reaction intermediates. It was found that photoreduction occurred with Cu2+ ions adsorbed on Se NWs, leading to the reaction of Cu2+ ions and Se NWs without Cu deficiency. Namely, this photoreduction under the adsorbed conditions realized the control of Cu vacancies in Cu2+x Se NWs.
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Affiliation(s)
- Shunya Sakane
- Graduate School of Science and Engineering, Ibaraki University 4-12-1, Nakanarusawa-cho Hitachi Ibaraki 316-8511 Japan
| | - Tatsuki Miura
- Faculty of Science and Engineering, Chuo University 1-13-27, Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Kazuki Munakata
- Faculty of Science and Engineering, Chuo University 1-13-27, Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Yusuke Morikawa
- Faculty of Science and Engineering, Chuo University 1-13-27, Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Shunichiro Miwa
- Faculty of Science and Engineering, Chuo University 1-13-27, Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Riku Yamanaka
- Faculty of Science, Toho University 2-2-1, Miyama Funabashi-shi Chiba 274-8510 Japan
| | - Toshiki Sugai
- Faculty of Science, Toho University 2-2-1, Miyama Funabashi-shi Chiba 274-8510 Japan
| | - Akito Ayukawa
- Graduate School of Science and Engineering, Ibaraki University 4-12-1, Nakanarusawa-cho Hitachi Ibaraki 316-8511 Japan
| | - Haruhiko Udono
- Graduate School of Science and Engineering, Ibaraki University 4-12-1, Nakanarusawa-cho Hitachi Ibaraki 316-8511 Japan
| | - Hideki Tanaka
- Faculty of Science and Engineering, Chuo University 1-13-27, Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
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Suleiman AA, Parsi A, Razeghi M, Başçı U, Oh S, Pehlivanoğlu D, Jeong HY, Kang K, Kasırga TS. Ion transport induced room-temperature insulator-metal transition in single-crystalline Cu 2Se. NANOSCALE HORIZONS 2024; 9:1137-1145. [PMID: 38764332 DOI: 10.1039/d4nh00003j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
Cu2Se is a superionic conductor above 414 K, with ionic conductivities reaching that of molten salts. The superionic behavior results from hopping Cu ions between different crystallographic sites within the Se scaffold. However, the properties of Cu2Se below 414 K are far less known due to experimental limitations imposed by the bulk or polycrystalline samples that have been available so far. Here, we report the synthesis of ultra-thin, large-area single crystalline Cu2Se samples using a chemical vapor deposition method. The as-synthesized Cu2Se crystals exhibit optically and electrically detectable and controllable robust phases at room temperature and above. We demonstrate that Cu ion vacancies can be manipulated to induce an insulator-metal transition, which exhibits 6 orders of magnitude change in the electrical resistance of two terminal devices, accompanied by an optical change in the phase configuration. Our experiments show that the high mobility of the liquid-like Cu ion vacancies in Cu2Se causes macroscopic ordering in the Cu vacancies. Consequently, phase distribution over the crystals is not dictated by the diffusive motion of the ions but by the local energy minima formed due to the phase transition. As a result, long-range vacancy ordering of the crystal below 414 K becomes optically observable at a micrometer scale. This work demonstrates that Cu2Se could be a prototypical system where long-range ordering properties can be studied via electrical and optical methods.
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Affiliation(s)
- Abdulsalam Aji Suleiman
- Bilkent University UNAM - Institute of Materials Science and Nanotechnology, Ankara, 06800, Turkey.
| | - Amir Parsi
- Bilkent University UNAM - Institute of Materials Science and Nanotechnology, Ankara, 06800, Turkey.
| | - Mohammadali Razeghi
- Bilkent University UNAM - Institute of Materials Science and Nanotechnology, Ankara, 06800, Turkey.
| | - Uğur Başçı
- Department of Physics, Bilkent University, Ankara 06800, Turkey
| | - Saeyoung Oh
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | | | - Hu Young Jeong
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Kibum Kang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - T Serkan Kasırga
- Bilkent University UNAM - Institute of Materials Science and Nanotechnology, Ankara, 06800, Turkey.
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Lai TH, Tsao CW, Fang MJ, Wu JY, Chang YP, Chiu YH, Hsieh PY, Kuo MY, Chang KD, Hsu YJ. Au@Cu 2O Core-Shell and Au@Cu 2Se Yolk-Shell Nanocrystals as Promising Photocatalysts in Photoelectrochemical Water Splitting and Photocatalytic Hydrogen Production. ACS APPLIED MATERIALS & INTERFACES 2022; 14:40771-40783. [PMID: 36040289 DOI: 10.1021/acsami.2c07145] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this work, we demonstrated the practical use of Au@Cu2O core-shell and Au@Cu2Se yolk-shell nanocrystals as photocatalysts in photoelectrochemical (PEC) water splitting and photocatalytic hydrogen (H2) production. The samples were prepared by conducting a sequential ion-exchange reaction on a Au@Cu2O core-shell nanocrystal template. Au@Cu2O and Au@Cu2Se displayed enhanced charge separation as the Au core and yolk can attract photoexcited electrons from the Cu2O and Cu2Se shells. The localized surface plasmon resonance (LSPR) of Au, on the other hand, can facilitate additional charge carrier generation for Cu2O and Cu2Se. Finite-difference time-domain simulations were carried out to explore the amplification of the localized electromagnetic field induced by the LSPR of Au. The charge transfer dynamics and band alignment of the samples were examined with time-resolved photoluminescence and ultraviolet photoelectron spectroscopy. As a result of the improved interfacial charge transfer, Au@Cu2O and Au@Cu2Se exhibited a substantially larger photocurrent of water reduction and higher photocatalytic activity of H2 production than the corresponding pure counterpart samples. Incident photon-to-current efficiency measurements were conducted to evaluate the contribution of the plasmonic effect of Au to the enhanced photoactivity. Relative to Au@Cu2O, Au@Cu2Se was more suited for PEC water splitting and photocatalytic H2 production by virtue of the structural advantages of yolk-shell architectures. The demonstrations from the present work may shed light on the rational design of sophisticated metal-semiconductor yolk-shell nanocrystals, especially those comprising metal selenides, for superior photocatalytic applications.
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Affiliation(s)
- Ting-Hsuan Lai
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chun-Wen Tsao
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Mei-Jing Fang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Jhen-Yang Wu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yu-Peng Chang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yi-Hsuan Chiu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Ping-Yen Hsieh
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Ming-Yu Kuo
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Kao-Der Chang
- Mechanical and Systems Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
| | - Yung-Jung Hsu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
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Li L, Zhao Y, Shi C, Zeng W, Liao B, Zhang M, Tao X. Facile synthesis of copper selenides with different stoichiometric compositions and their thermoelectric performance at a low temperature range. RSC Adv 2021; 11:25955-25960. [PMID: 35479427 PMCID: PMC9037115 DOI: 10.1039/d1ra04626h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/14/2021] [Indexed: 12/04/2022] Open
Abstract
Copper selenide is widely considered to be a promising candidate for high-performance flexible thermoelectrics; however, most of the reported ZT values of copper selenides are unsatisfactory at a relatively low temperature range. Herein, we utilized some wet chemical methods to synthesize a series of copper selenides. XRD, SEM and TEM characterizations revealed that CuSe, Cu3Se2 and Cu2-x Se were prepared successfully and possessed different morphologies and sizes. Based on the analysis of their thermoelectric properties, Cu2-x Se exhibited the highest Seebeck coefficient and lowest thermal conductivity among the three samples owing to its unique crystal structure. After being sintered at 400 °C under N2 atmosphere, the electrical conductivity of Cu2-x Se enhanced considerable, resulting in a significant improvement of its ZT values from 0.096 to 0.458 at 30 to 150 °C. This result is remarkable for copper selenide-based thermoelectric materials at a relatively low temperature range, indicating its brilliant potential in the field of flexible thermoelectric devices.
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Affiliation(s)
- Longbin Li
- Guangdong Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences Guangzhou 510665 China
| | - Yifang Zhao
- Guangdong Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences Guangzhou 510665 China
| | - Chaosheng Shi
- Guangdong Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences Guangzhou 510665 China
| | - Wei Zeng
- Guangdong Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences Guangzhou 510665 China
| | - Bing Liao
- Guangdong Academy of Sciences Guangzhou 510665 China
| | - Mingqiu Zhang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Xiaoming Tao
- Research Centre for Smart Wearable Systems, Institute of Textiles and Clothing, The Hong Kong Polytechnic University Hong Kong
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