Modulation of ZnO Nanostructure for Efficient Photocatalytic Performance
Abstract Structure has been considered to play an important role in photocatalytic performance of the semiconductors, but the intrinsic factors were rarely revealed. Herein, ZnO nanomaterials in the structures of thin film, nanowire array and nanosheet array were synthesized, and their structural ch...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-12-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s11671-022-03760-x |
| _version_ | 1797759735441653760 |
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| author | Peng Long Hao Peng Bolin Sun Jinshen Lan Jing Wan Yuchen Fei Xiaofang Ye Shanzhi Qu Gengnan Ye Yilin He Shengli Huang Shuping Li Junyong Kang |
| author_facet | Peng Long Hao Peng Bolin Sun Jinshen Lan Jing Wan Yuchen Fei Xiaofang Ye Shanzhi Qu Gengnan Ye Yilin He Shengli Huang Shuping Li Junyong Kang |
| author_sort | Peng Long |
| collection | DOAJ |
| description | Abstract Structure has been considered to play an important role in photocatalytic performance of the semiconductors, but the intrinsic factors were rarely revealed. Herein, ZnO nanomaterials in the structures of thin film, nanowire array and nanosheet array were synthesized, and their structural characteristics, optical properties, photocurrent response and photocatalytic efficiency were compared with each other for illustrating the issue. The photoluminescence intensity decreased in the order of nanosheets, thin film and nanowires for improved lifetime of the photoexcited charges. The absorption of the nanosheets and nanowires improved obviously in the visible range with a redshift of the absorption edge than that of the thin film. The nanowires possessed the highest response current of 82.65 μA at a response time of 2.0 ms in a sensitivity of 87.93 at the light frequency of 1 Hz, and gained the largest catalytic efficiency of 2.45 μg/cm2 h for the methylene blue degradation in UV light. Nevertheless, the improvement of catalytic efficiency of the nanosheets (up to 42.4%) was much larger than that of nanowires (5.7%) and thin film (2.6%) for the Au coating. The analysis revealed that the photocatalytic efficiency of the ZnO nanomaterials was modulated by the structure as it contained different surface area, roughness, defect and doping states, vacancies, polar and non-polar crystalline faces, which would provide structural design of semiconductor nanomaterials for the photoelectric and photocatalytic applications. |
| first_indexed | 2024-03-12T18:48:43Z |
| format | Article |
| id | doaj.art-885bdbdc9baf4aacb29af4550819b2c9 |
| institution | Directory Open Access Journal |
| issn | 1556-276X |
| language | English |
| last_indexed | 2024-03-12T18:48:43Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-885bdbdc9baf4aacb29af4550819b2c92023-08-02T07:25:54ZengSpringerOpenNanoscale Research Letters1556-276X2022-12-0117111010.1186/s11671-022-03760-xModulation of ZnO Nanostructure for Efficient Photocatalytic PerformancePeng Long0Hao Peng1Bolin Sun2Jinshen Lan3Jing Wan4Yuchen Fei5Xiaofang Ye6Shanzhi Qu7Gengnan Ye8Yilin He9Shengli Huang10Shuping Li11Junyong Kang12Engineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityEngineering Research Center of Micro-Nano Optoelectronic Materials and Devices, Ministry of Education, Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Jiujiang Research Institute, Xiamen UniversityAbstract Structure has been considered to play an important role in photocatalytic performance of the semiconductors, but the intrinsic factors were rarely revealed. Herein, ZnO nanomaterials in the structures of thin film, nanowire array and nanosheet array were synthesized, and their structural characteristics, optical properties, photocurrent response and photocatalytic efficiency were compared with each other for illustrating the issue. The photoluminescence intensity decreased in the order of nanosheets, thin film and nanowires for improved lifetime of the photoexcited charges. The absorption of the nanosheets and nanowires improved obviously in the visible range with a redshift of the absorption edge than that of the thin film. The nanowires possessed the highest response current of 82.65 μA at a response time of 2.0 ms in a sensitivity of 87.93 at the light frequency of 1 Hz, and gained the largest catalytic efficiency of 2.45 μg/cm2 h for the methylene blue degradation in UV light. Nevertheless, the improvement of catalytic efficiency of the nanosheets (up to 42.4%) was much larger than that of nanowires (5.7%) and thin film (2.6%) for the Au coating. The analysis revealed that the photocatalytic efficiency of the ZnO nanomaterials was modulated by the structure as it contained different surface area, roughness, defect and doping states, vacancies, polar and non-polar crystalline faces, which would provide structural design of semiconductor nanomaterials for the photoelectric and photocatalytic applications.https://doi.org/10.1186/s11671-022-03760-xZnONanostructurePhotocurrent responsePhotocatalysis |
| spellingShingle | Peng Long Hao Peng Bolin Sun Jinshen Lan Jing Wan Yuchen Fei Xiaofang Ye Shanzhi Qu Gengnan Ye Yilin He Shengli Huang Shuping Li Junyong Kang Modulation of ZnO Nanostructure for Efficient Photocatalytic Performance Nanoscale Research Letters ZnO Nanostructure Photocurrent response Photocatalysis |
| title | Modulation of ZnO Nanostructure for Efficient Photocatalytic Performance |
| title_full | Modulation of ZnO Nanostructure for Efficient Photocatalytic Performance |
| title_fullStr | Modulation of ZnO Nanostructure for Efficient Photocatalytic Performance |
| title_full_unstemmed | Modulation of ZnO Nanostructure for Efficient Photocatalytic Performance |
| title_short | Modulation of ZnO Nanostructure for Efficient Photocatalytic Performance |
| title_sort | modulation of zno nanostructure for efficient photocatalytic performance |
| topic | ZnO Nanostructure Photocurrent response Photocatalysis |
| url | https://doi.org/10.1186/s11671-022-03760-x |
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