Preparation and photocatalytic study of SiO2/CuS coreshell nanomaterial for degradation of methylene blue dye

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AZARI B.; POURAHMAD A.; SADEGHI B.; MOKHTARY M.

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Journal: NANOSCALE Year:2019 | Volume:6 | Issue:3 Page(s): 103-114

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Title

Preparation and photocatalytic study of SiO2/CuS coreshell nanomaterial for degradation of methylene blue dye

Author(s)

AZARI B. | POURAHMAD A. | SADEGHI B. | MOKHTARY M. | Issue Writer Certificate

Keywords

NanocompositeQ1

CuSQ1

PhotocatalystQ2

NanoparticleQ1

DyeQ1

Abstract

In this work, core (SiO2) – shell (CuS) nanostructures have beendeveloped using a simple wet chemical route. X-ray diffraction analysis (XRD), diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), EDS and fourier transform infrared (FT-IR) were used to characterize the products. The morphological studies revealed theuniformity in size distribution with core size of 250 nm andshell thickness of 7. 5-17 nm. The structural studies indicate hexagonal structure of covellite (CuS) shell with no other trace for impurities in the crystalstructure. This CuS layer exhibit the band gap energy of3. 1 eV, due to quantum confinement and numerousdefects presence. Photocatalytic activity of Nanocomposites was studied for degradation of Methylene Blue (MB) under visible light. Several parameters were examined, catalyst amount (0. 1– 1 g L-1 ), pH (1– 13) and initial concentration of MB (0. 96– 10 ppm). The extent of degradation was estimated from the residual concentration by spectrophotometrically.

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APA: Copy

AZARI, B., POURAHMAD, A., SADEGHI, B., & MOKHTARY, M.. (2019). Preparation and photocatalytic study of SiO2/CuS coreshell nanomaterial for degradation of methylene blue dye. NANOSCALE, 6(3 ), 103-114. SID. https://sid.ir/paper/256999/en

Vancouver: Copy

AZARI B., POURAHMAD A., SADEGHI B., MOKHTARY M.. Preparation and photocatalytic study of SiO2/CuS coreshell nanomaterial for degradation of methylene blue dye. NANOSCALE[Internet]. 2019;6(3 ):103-114. Available from: https://sid.ir/paper/256999/en

IEEE: Copy

B. AZARI, A. POURAHMAD, B. SADEGHI, and M. MOKHTARY, “Preparation and photocatalytic study of SiO2/CuS coreshell nanomaterial for degradation of methylene blue dye,” NANOSCALE, vol. 6, no. 3 , pp. 103–114, 2019, [Online]. Available: https://sid.ir/paper/256999/en

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