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논문 기본 정보

자료유형
학술저널
저자정보
Jianhua Ge (Anhui University of Science & Technology) 양유정 (한국방송통신대학교 원격교육연구소)
저널정보
성균관대학교 성균나노과학기술원 NANO NANO Vol.14 No.11
발행연도
2019.1
수록면
120 - 130 (11page)

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Nitrogen photo fixation mediated by various photocatalysts has received extensive concerns in recent years. In this work, a general strategy is proposed to enhance nitrogen photo fixation performance with some W18O49-based photocatalysts under visible-light irradiation. A series of photocatalysts were successfully synthesized in the presence of some noble-metal-free transition metals (Fe, Co and Ni) to modify the urchin-like W18O49. The resulting photocatalysts were systematically characterized using XRD, SEM, EDS, XPS, PL, N2 adsorption–desorption isotherms, and DRS. Structural characterization of the photocatalysts revealed that the crystal morphology features were preserved, optional harvesting properties were enhanced, BET specific surface area was extended, and migration efficiency of the photo-induced charge carriers was significantly improved in the modified-W18O49 materials. Therefore, a progressed nitrogen photo fixation performance was observed. The maximum production of NH4 + was approximately reached to 2752 μg · g -1 catal. under the optimum reaction conditions. Furthermore, a plausible nitrogen photo fixation mechanism in the presence of the synthesized composites is also proposed.

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