Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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A Study on Morphology Control of (Ga1-xZnx)(N1-xOx) Nanofibers according to the Composition and Crystallinity of Oxide Nanofibers Synthesized by Electrospinning

전기방사로 합성된 산화물 나노섬유의 조성 및 결정화도에 따른 (Ga1-xZnx)(N1-xOx) 나노섬유의 형상 제어 연구

  • Kim, Jeong Hyun (Department of Materials Science and Engineering, Seoul National University of Science and Technology) ;
  • Oh, Sung-Tag (Department of Materials Science and Engineering, Seoul National University of Science and Technology) ;
  • Lee, Young-In (Department of Materials Science and Engineering, Seoul National University of Science and Technology)
  • 김정현 (서울과학기술대학교 신소재공학과) ;
  • 오승탁 (서울과학기술대학교 신소재공학과) ;
  • 이영인 (서울과학기술대학교 신소재공학과)
  • Received : 2021.06.17
  • Accepted : 2021.06.27
  • Published : 2021.06.28
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Abstract

The (Ga1-xZnx)(N1-xOx) solid solution is attracting extensive attention for photocatalytic water splitting and wastewater treatment owing to its narrow and controllable band gap. To optimize the photocatalytic performance of the solid solution, the key points are to decrease its band gap and recombination rate. In this study, (Ga1-xZnx)(N1-xOx) nanofibers with various Zn fractions are prepared by electrospinning followed by calcination and nitridation. The effect of the composition and crystallinity of electrospun oxide nanofibers on the morphology and optical properties of the obtained solid-solution nanofibers are systematically investigated. The results show that the final shape of the (Ga1-xZnx) (N1-xOx) material is greatly affected by the crystallinity of the oxide nanofibers before nitridation. The photocatalytic properties of (Ga1-xZnx)(N1-xOx) with different Ga:Zn atomic ratios are investigated by studying the degradation of rhodamine B under visible light irradiation.

Keywords

Acknowledgement

This research was supported by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Education (NRF-2018R1D1A1B07048149).

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