한국재료학회지 (Korean Journal of Materials Research)

  • 제31권6호
  • /
  • Pages.353-366
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  • 2021
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  • 1225-0562(pISSN)
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  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
권호 표지
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Photocatalytic Generated Oxygen Species Properties by Fullerene Modified Two-Dimensional MoS2 and Degradation of Ammonia Under Visible Light

  • Zou, Cong-Yang (Suzhou University of Science and Technology, Jiangsu Key Laboratory of Environmental Functional) ;
  • Meng, Ze-Da (Suzhou University of Science and Technology, Jiangsu Key Laboratory of Environmental Functional) ;
  • Zhao, Wei (Dept. of Materials Science and Engineering, Sichuan University of Science and Engineering) ;
  • Oh, Won-Chun (Department of Advanved Materials Science and Engineering, Hanseo University)
  • 투고 : 2020.12.02
  • 심사 : 2021.06.03
  • 발행 : 2021.06.27
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초록

In this study, photocatalytic degradation of ammonia in petrochemical wastewater is investigated by solar light photocatalysis. Two-dimensional ultra-thin atomic layer structured MoS2 are synthesized via a simple hydrothermal method. We examine all prepared samples by means of physical techniques, such as SEM-EDX, HRTEM, FT-IR, BET, XRD, XPS, DRS and PL. And, we use fullerene modified MoS2 nanosheets to enhance the activity of photochemically generated oxygen (PGO) species. Surface area and pore volumes of the MoS2-fullerene samples significantly increase due to the existence of MoS2. And, PGO oxidation of MB, TBA and TMST, causing its concentration in aqueous solution to decrease, is confirmed by the results of PL. The generation of reactive oxygen species is detected through the oxidation reaction from 1,5-diphenyl carbazide (DPCI) to 1,5-diphenyl carbazone (DPCO). It is found that the photocurrent density and the PGO effect increase in the case with modified fullerene. The experimental results show that this heterogeneous catalyst has a degradation of 88.43% achieved through visible light irradiation. The product for the degradation of NH3 is identified as N2, but not NO2- or NO3-.

키워드

과제정보

The work was supported by the National Natural Science Foundation of China (Nos. 51502187), the JiangSu Collaborative Innovation Center of Technology and Material for Water Treatment, and Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

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