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Poliukhova V, Park JK, Kim D, Khan S, Seo JY, Kim SJ, Moon GH, Baek KY, Kim S, Cho SH. Rational design of dynamic Z-scheme heterojunction composites for photocatalytic Cr(VI) reduction and H2 production: an experimental and computational study. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100363] [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] Open
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Fabrication and Characterization of Nanostructured Rock Wool as a Novel Material for Efficient Water-Splitting Application. NANOMATERIALS 2022; 12:nano12132169. [PMID: 35808005 PMCID: PMC9267974 DOI: 10.3390/nano12132169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 11/17/2022]
Abstract
Rock wool (RW) nanostructures of various sizes and morphologies were prepared using a combination of ball-mill and hydrothermal techniques, followed by an annealing process. Different tools were used to explore the morphologies, structures, chemical compositions and optical characteristics of the samples. The effect of initial particle size on the characteristics and photoelectrochemical performance of RW samples generated hydrothermally was investigated. As the starting particle size of ball-milled natural RW rises, the crystallite size of hydrothermally formed samples drops from 70.1 to 31.7 nm. Starting with larger ball-milled particle sizes, the nanoparticles consolidate and seamlessly combine to form a continuous surface with scattered spherical nanopores. Water splitting was used to generate photoelectrochemical hydrogen using the samples as photocatalysts. The number of hydrogen moles and conversion efficiencies were determined using amperometry and voltammetry experiments. When the monochromatic wavelength of light was increased from 307 to 460 nm for the manufactured RW>0.3 photocatalyst, the photocurrent density values decreased from 0.25 to 0.20 mA/mg. At 307 nm and +1 V, the value of the incoming photon-to-current efficiency was ~9.77%. Due to the stimulation of the H+ ion rate under the temperature impact, the Jph value increased by a factor of 5 when the temperature rose from 40 to 75 °C. As a result of this research, for the first time, a low-cost photoelectrochemical catalytic material is highlighted for effective hydrogen production from water splitting.
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Tsai YS, Wang DY, Chang JJ, Liang KT, Lin YH, Kuo CC, Lu SH, Wu YS, Lee LJH, Chen H, Wuu DS. Incorporation of Au Nanoparticles on ZnO/ZnS Core Shell Nanostructures for UV Light/Hydrogen Gas Dual Sensing Enhancement. MEMBRANES 2021; 11:903. [PMID: 34832131 PMCID: PMC8618099 DOI: 10.3390/membranes11110903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 11/25/2022]
Abstract
ZnO/ZnS nanocomposite-based nanostructures exhibit dual light and gas sensing capabilities. To further boost the light/dual sensing properties, gold nanoparticles (Au NPs) were incorporated into the core-shell structures. Multiple material characterizations revealed that Au NPs were successfully well spread and decorated on ZnO/ZnS nanostructures. Furthermore, our findings show that the addition of Au NPs could enhance both 365 nm UV light sensing and hydrogen gas sensing in terms of light/gas sensitivity and light/gas response time. We postulate that the optimization of gas/light dual sensing capability may result from the induced electric field and inhabitation of electron-hole recombination. Owing to their compact size, simple fabrication, and stable response, ZnO/ZnS/Au NPs-based light/gas dual sensors are promising for future extreme environmental monitoring.
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Affiliation(s)
- Yu-Sheng Tsai
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan; (Y.-S.T.); (Y.S.W.)
| | - Deng-Yi Wang
- Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan; (D.-Y.W.); (J.-J.C.); (K.-T.L.); (Y.-H.L.); (C.-C.K.); (S.-H.L.); (D.-S.W.)
| | - Jia-Jie Chang
- Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan; (D.-Y.W.); (J.-J.C.); (K.-T.L.); (Y.-H.L.); (C.-C.K.); (S.-H.L.); (D.-S.W.)
| | - Keng-Tien Liang
- Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan; (D.-Y.W.); (J.-J.C.); (K.-T.L.); (Y.-H.L.); (C.-C.K.); (S.-H.L.); (D.-S.W.)
| | - Ya-Hsuan Lin
- Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan; (D.-Y.W.); (J.-J.C.); (K.-T.L.); (Y.-H.L.); (C.-C.K.); (S.-H.L.); (D.-S.W.)
| | - Chih-Chen Kuo
- Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan; (D.-Y.W.); (J.-J.C.); (K.-T.L.); (Y.-H.L.); (C.-C.K.); (S.-H.L.); (D.-S.W.)
| | - Ssu-Han Lu
- Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan; (D.-Y.W.); (J.-J.C.); (K.-T.L.); (Y.-H.L.); (C.-C.K.); (S.-H.L.); (D.-S.W.)
| | - Yewchung Sermon Wu
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan; (Y.-S.T.); (Y.S.W.)
| | - Lukas Jyuhn-Hsiarn Lee
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli 350, Taiwan
- Stroke Center, Departments of Neurology, Environmental and Occupational Medicine, National Taiwan University Hospital, Taipei 100, Taiwan
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei 100, Taiwan
- Research Center for Environmental Medicine, Ph.D. Program of Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hsiang Chen
- Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan; (D.-Y.W.); (J.-J.C.); (K.-T.L.); (Y.-H.L.); (C.-C.K.); (S.-H.L.); (D.-S.W.)
| | - Dong-Sing Wuu
- Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan; (D.-Y.W.); (J.-J.C.); (K.-T.L.); (Y.-H.L.); (C.-C.K.); (S.-H.L.); (D.-S.W.)
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Miao C, Jiang M, Xu H, Ji J, Kan C. Vertically-aligned ZnO microrod for high-brightness light source. CrystEngComm 2020. [DOI: 10.1039/d0ce00933d] [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
ZnO-microrod array with well-aligned orientation prepared on p-GaN template can be utilized to construct high-performance near-ultraviolet emitters due to desired high optical quality and well-defined geometries.
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Affiliation(s)
- Changzong Miao
- College of Science
- Nanjing University of Aeronautics and Astronautics
- Nanjing 211106
- China
- Key Laboratory for Intelligent Nano Materials and Devices
| | - Mingming Jiang
- College of Science
- Nanjing University of Aeronautics and Astronautics
- Nanjing 211106
- China
- Key Laboratory for Intelligent Nano Materials and Devices
| | - Haiying Xu
- College of Science
- Nanjing University of Aeronautics and Astronautics
- Nanjing 211106
- China
- Department of Mathematics and Physics
| | - Jiaolong Ji
- College of Science
- Nanjing University of Aeronautics and Astronautics
- Nanjing 211106
- China
| | - Caixia Kan
- College of Science
- Nanjing University of Aeronautics and Astronautics
- Nanjing 211106
- China
- Key Laboratory for Intelligent Nano Materials and Devices
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Zhao D, Wu T, Zhou Y. Dual II Heterojunctions Metallic Phase MoS
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/ZnS/ZnO Ternary Composite with Superior Photocatalytic Performance for Removing Contaminants. Chemistry 2019; 25:9710-9720. [DOI: 10.1002/chem.201901715] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Indexed: 02/02/2023]
Affiliation(s)
- Dawei Zhao
- Department of Chemistry and Biological EngineeringChangsha University of Science and Technology Changsha 410114 People's Republic of China
| | - Tengteng Wu
- College of Chemistry and Chemical EngineeringHunan Normal University Changsha 410081 People's Republic of China
| | - Yi Zhou
- Department of Chemistry and Biological EngineeringChangsha University of Science and Technology Changsha 410114 People's Republic of China
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