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Cai J, Liu P, Lei J, Zhang Y, Xiang Y, Wang X, Wu Q, Hu Z. Solution-Processed 1D Wurtzite ZnS Nanostructures with Controlled Crystallographic Orientation and Tunable Band-Edge Emission. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2303560. [PMID: 37726249 DOI: 10.1002/smll.202303560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 09/04/2023] [Indexed: 09/21/2023]
Abstract
1D compound semiconductor nanomaterials possess unique physicochemical properties that strongly depend on their size, composition, and structures. ZnS has been widely investigated as one of the most important semiconductors, and the control of crystallographic orientation of 1D ZnS nanostructures is still challenging and crucial to exploring their anisotropic properties. Herein, a solution-processed strategy is developed to synthesize 1D wurtzite (w-)ZnS nanostructures with the specific <002> and <210> orientations by co-decomposing the copper dibutyldithiocarbamate {[(C4 H9 )2 NCS2 ]2 Cu, i.e., R2 Cu} and zinc dibutyldithiocarbamate (R2 Zn) precursors in the mixed solvents of oleylamine and 1-dodecanethoil. A solution-solid-solid (SSS)-Oriented growth mechanism is proposed, which includes oriented nucleation dominated and SSS growth dominated stages. The crystallographic orientation mainly depends on the interfacial energy and ligand effect. The 1D w-ZnS nanostructures with controlled crystallographic orientation display unique morphologies, i.e., <002>-oriented w-ZnS nanorod enclosed with {110} facets while <210>-oriented w-ZnS nanobelt enclosed with wide (002) and narrow (110) facets. The bandgap of 1D w-ZnS nanostructures can be tuned from 3.94 to 3.82 eV with the crystallographic growth direction varied from <002> to <210>, thus leading to the tunable band-edge emission from ≈338 to ≈345 nm.
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Affiliation(s)
- Jing Cai
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Peifeng Liu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Junyu Lei
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Yongliang Zhang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Yu Xiang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Xizhang Wang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Qiang Wu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Zheng Hu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
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Alangadu Kothandan V, Shao-Fu C, Zhong-You L, Shih-Hsun C. Growth kinetics of crumb-like structure formation on SnO 2 nanowires during direct oxidation. Heliyon 2023; 9:e20519. [PMID: 37810868 PMCID: PMC10551557 DOI: 10.1016/j.heliyon.2023.e20519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/10/2023] Open
Abstract
A facile AAO (anodic aluminum oxide) template-assisted vacuum die-casting technique was used to create Sn nanowires and convert them into SnO2 without degrading the wires nanostructure. As a function of time and temperature, the controlled oxidation on the Sn nanowires of two different spatial configurations (100 and 250 nm in diameter) revealed distinct oxidation mechanisms. The 250-SnO2 nanowires exhibits a peculiar crumb-like structure formation over the surface due to the higher level of Sn atom dislocation. Conversely, the sub-100 nm SnO2 nanowires shows a highly crystalline, homogenous, and defect-free surfaces. The optical properties of the sub-100 nm SnO2 nanowires were characterized using UV-Vis spectroscopy. The heat-treated tin oxides nanowires samples at temperatures of 300, 500, and 700 °C for 7 h exhibited optical energy bandgaps of 1.8, 2.6, and 3.3 eV, respectively. The observed variation in bandgap is attributed to the unique phase compositions achieved in each of the heat-treated samples. Moreover, the obtained results showed exceptional structural integrity and optical properties that are inherently interconnected with the diverse phases achieved under precise heat treatment conditions.
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Affiliation(s)
- Vivekanandan Alangadu Kothandan
- Department of Aeronautical Engineering, Annasaheb Dange College of Engineering and Technology, Ashta, Sangli, 416301, Maharashtra, India
- Department of Mechanical Engineering, National Yang Ming Chiao Tung University, Hsinchu 300039, Taiwan
| | - Chang Shao-Fu
- Department of Mechanical Engineering, National Yang Ming Chiao Tung University, Hsinchu 300039, Taiwan
| | - Li Zhong-You
- Department of Mechanical Engineering, National Yang Ming Chiao Tung University, Hsinchu 300039, Taiwan
| | - Chen Shih-Hsun
- Department of Mechanical Engineering, National Yang Ming Chiao Tung University, Hsinchu 300039, Taiwan
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Liu Y, Zhu Y, Liu X, Dong L, Zheng Q, Kang S, He Y, Wang J, Abd El-Aty AM. CdSe/ZnS QDs embedded polyethersulfone fluorescence composite membrane for sensitive detection of copper ions in various drinks. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2023; 58:120-130. [PMID: 36734347 DOI: 10.1080/03601234.2023.2172280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The copper ion was detected rapidly by a novel sensing membrane in this paper for its damage to health and the environment. CdSe/ZnS QDs modified polyethersulfone membrane (QDs@PESM) was made by phase-inversion method using a membrane separation technique and quantum dots (QDs). When the sample passed through the membrane, the copper ions in the sample caused the membrane's fluorescence to be quenched. The fluorescence quenching value of the membrane is used to calculate the concentration of copper ions. With R2= 0.9964, Cu2+could be quantitatively detected over a wide concentration range (10-1000 μg/L). The method's LOD and LOQ were 4.27 and 14.23 μg/L, respectively. When the CdSe/ZnS QDs@PESM was used to analyze Cu2+ in various real drinks, including well water, baijiu, orange juice, beer, and milk, the recovery ranged from 79.1 to 123.9%, indicating that the CdSe/ZnS QDs@PESM can be used as a rapid, simple and reliable method to determine Cu2+ in various matrices.
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Affiliation(s)
- Yajie Liu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Food Additive Engineering Technology Research Center, School of Food and Health, Beijing Technology &Business University, Beijing, China
| | - Yao Zhu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Food Additive Engineering Technology Research Center, School of Food and Health, Beijing Technology &Business University, Beijing, China
| | - Xinyu Liu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Food Additive Engineering Technology Research Center, School of Food and Health, Beijing Technology &Business University, Beijing, China
| | - Liming Dong
- School of Ecology and Environment, Beijing Technology &Business University, Beijing, P.R. China
| | - Qinglin Zheng
- Beijing Persee General Instrument Co., Ltd, Beijing, P.R. China
| | - Shu Kang
- Beijing Persee General Instrument Co., Ltd, Beijing, P.R. China
| | - Yahui He
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Food Additive Engineering Technology Research Center, School of Food and Health, Beijing Technology &Business University, Beijing, China
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Food Additive Engineering Technology Research Center, School of Food and Health, Beijing Technology &Business University, Beijing, China
| | - A M Abd El-Aty
- Department of Pharmacology, Cairo University, Giza, Egypt
- Department of Medical Pharmacology, Ataturk University, Erzurum, Turkey
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