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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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이 논문의 연구 히스토리 (5)
2021
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Among various metal oxide semiconductors, ZnO has an excellent electrical, optical properties with a wide bandgap of 3.3 eV. It can be applied as a photocatalytic material due to its high absorption rate along with physical and chemical stability to UV light. In addition, it is important to control the morphology of ZnO because the size and shape of the ZnO make difference in physical properties. In this paper, we demonstrate synthesis of size-controlled ZnO tetrapods using an atmospheric pressure plasma system. A micro-sized Zn spherical powder was continuously introduced in the plume of the atmospheric plasma jet ignited with mixture of oxygen and nitrogen. The effect of plasma power and collection sites on ZnO nanostructure was investigated. After the plasma discharge for 10 min, the produced materials deposited inside the 60-㎝-long quartz tube were obtained with respect to the distance from the plume. According to the SEM analysis, all the synthesized nanoparticles were found to be ZnO tetrapods ranging from 100 to 600-㎚-diameter depending on both applied power and collection site. The photocatalytic efficiency was evaluated by color change of methylene blue solution using UV-Vis spectroscopy. The photocatalytic activity increased with the increase of (101) and (100) plane in ZnO tetrapods, which is caused by enhanced chemical effects of plasma process.
목차
Abstract
1. 서론
2. 실험방법
3. 결과 및 고찰
4. 결론
References
참고문헌 (22)
참고문헌 신청
M. Norek, Approaches to enhance UV light emission in ZnO nanomaterials, J. Appl. Phys., 19 (2019) 867-883.
B. Abebe, H. C. A. Murthy, E. Amare, Enhancing the photocatalytic efficiency of ZnO: Defects, heterojunction, and optimization, Environ. Nanotechnol. Monit. Manag., 14 (2020) 100336.
G. Byzynski, C. Melo, D. P. Volanti, M. M. Ferrer, A. F. Gouveia, C. Ribeiro, J. Andres, E. Longo, The interplay between morphology and photocatalytic activity in ZnO and N-doped ZnO crystals, Mater. Des., 120 (2017) 363-375.
S. Yue, Z. Yan, Y. Shi, G. Ran, Synthesis of zinc oxide nanotubes within ultrathin anodic aluminum oxide membrane by sol-gel method, Mater. Lett. 21 (2018) 631-651.
P. Chang, Z. Fan, D. Wang, W. Tseng, W. Chiou, J. Hong, J. Lu, ZnO Nanowires synthesized by vapor trapping CVD method, Chem. Mater., 16 (2004) 5133-5137.
B. Abebe, H. C. A. Murthy, E. Amare, Enhancing the photocatalytic efficiency of ZnO: Defects, heterojunction, and optimization, Environ. Nanotechnol. Monit. Manag., 14 (2020) 100336.
G. Byzynski, C. Melo, D. P. Volanti, M. M. Ferrer, A. F. Gouveia, C. Ribeiro, J. Andres, E. Longo, The interplay between morphology and photocatalytic activity in ZnO and N-doped ZnO crystals, Mater. Des., 120 (2017) 363-375.
S. Yue, Z. Yan, Y. Shi, G. Ran, Synthesis of zinc oxide nanotubes within ultrathin anodic aluminum oxide membrane by sol-gel method, Mater. Lett. 21 (2018) 631-651.
P. Chang, Z. Fan, D. Wang, W. Tseng, W. Chiou, J. Hong, J. Lu, ZnO Nanowires synthesized by vapor trapping CVD method, Chem. Mater., 16 (2004) 5133-5137.
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UCI(KEPA) : I410-ECN-0101-2022-581-000135468