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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 119 - 132 (14page)
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In this work, we report the synthesis of binary semiconductor nanocomposite (NC) comprising spherical ZnO nanoparticlesstacked with two-dimensional MoS 2 nanosheets, utilizing a facile microwave assisted synthesis technique. The fabricatedproduct was characterized by X-ray diff raction, transmission electron microscopy, high-resolution transmission electronmicroscopy instrument, scanning electron microscopy, Raman spectroscopy, energy-dispersive X-ray spectroscopy (EDAX),inductively coupled plasma analysis and Fourier transform infrared spectroscopy to distinguish the structure and morphologyof arranged NC. Ultraviolet–visible spectroscopy was used to understand the optical properties of MoS 2 ·ZnO NC. Opticaltransmission spectra gave a distinct red shift in the band gap of ZnO after making composition with MoS 2 nanosheetswhich eventually shows higher retention of visible light. This occurs due to eff ective separation of photogenerated chargecarriers and rapid charge transfer to reactions sites of conduction band potentials of both ZnO and MoS 2 both. We plot thatMoS 2 ·ZnO NC has a band gap of 2.73 eV which is fundamentally a long way from the band gap of ZnO (~ 3.3 eV). Theoutcomes recommended the eff ective fading out of methylene blue (more than 95%) in 1 h on the illumination of visiblelight. Besides, the association of MoS 2 prevents photo-corrosion of the ZnO bringing about upgraded photostability of thecatalyst during the reaction. Moreover, we presented a recyclability test of the photocatalyst for fi ve subsequent times to getthe effi cient dye degradation.
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참고문헌 (42)
참고문헌 신청
Anliker, R. / 1979 / Ecotoxicology of dyestuffs: a joint effort by industry / Ecotoxicol. Environ. Saf 3(1):59~74
Shore, J. / 1996 / Advances in direct dyes / Indian J. Fibre Text. Res 21(1):1~29
Ajmal, A. / 2014 / Principles and mechanisms of photocatalytic dye degradation on TiO2 based photocatalysts: a comparative overview / RSC Adv 4(70):37003~37026
Khan, S. A. / 2016 / Layered double hydroxide of Cd–Al/C for the mineralization and de-coloration of dyes in solar and visible light exposure / Sci. Rep 6(11):14~18
Ayodhya, D. / 2016 / Photocatalytic degradation of dye pollutants under solar, visible and UV lights using green synthesised CuS nanoparticles / J. Exp. Nanosci 11(6):418~432
Shore, J. / 1996 / Advances in direct dyes / Indian J. Fibre Text. Res 21(1):1~29
Ajmal, A. / 2014 / Principles and mechanisms of photocatalytic dye degradation on TiO2 based photocatalysts: a comparative overview / RSC Adv 4(70):37003~37026
Khan, S. A. / 2016 / Layered double hydroxide of Cd–Al/C for the mineralization and de-coloration of dyes in solar and visible light exposure / Sci. Rep 6(11):14~18
Ayodhya, D. / 2016 / Photocatalytic degradation of dye pollutants under solar, visible and UV lights using green synthesised CuS nanoparticles / J. Exp. Nanosci 11(6):418~432
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