화학공학소재연구정보센터
학회 한국재료학회
학술대회 2021년 가을 (11/24 ~ 11/26, 경주 라한호텔)
권호 27권 2호
발표분야 E. 환경/센서 재료 분과
제목 Facile preparation of ZnO-Mn3O4 nanocomposite with enhanced photocatalytic hydrogen production activity
초록 Hydrogen production from photocatalytic water splitting by non-noble-metal photocatalysts is considered to be the most promising solution to the world energy crisis issues. Herein, a ZnO-Mn3 O4 composite with remarkable photocatalytic water reduction activity has been successfully fabricated via a wet chemical route. The crystallinity, morphological, optical characteristics, and photocatalytic hydrogen production of the composite were investigated by XRD, micro Raman, FESEM with EDS, TEM, and UV-Vis analyses. The results of the XRD study affirmed that the nanocomposite comprises hexagonal and tetragonal phases. FESEM and TEM analysis demonstrates the surface morphology and formation of the composite. The optical bandgap of ZnO-Mn3O4 nanocomposite is calculated through UV-Vis analysis. The unique morphology, significantly improved charge carrier separation, and synergistic effects of the composite system should be responsible for the excellent photocatalytic activity. These findings propose a new unexplored avenue for the fabrication of highly active and low-cost photocatalyst for practical H2  generation via photocatalytic reduction.
저자 Bee Lyong Yang1, V. Navakoteswara Rao2, Jun-Mo Yang3, Meshesha Mikiyas Mekete4, NaYoung Kwan5, Jaewon Lee6
소속 1School of Advanced Materials Science and Engineering, 2Kumoh National Institute of Technology, 361 Daehak-ro, 4Gumi-si, 5Gyeongbuk, 639177
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