Physicochemcial characteristic of CdS-anchored porous WS2 hybrid in the photocatalytic degradation of crystal violet under UV and visible light irradiation |
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| Institution: | 1. Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 550000, Viet Nam;2. The Faculty of Environmental and Chemical Engineering, Duy Tan University, 03 Quang Trung, Da Nang 550000, Viet Nam;3. Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao, Ho Chi Minh 700000, Viet Nam;4. Department of Food Science and Biotechnology, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si 13120, Republic of Korea;5. School of Chemical Engineering and Materials Science, Institute of Interdisciplinary Convergence Research, Chung- Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea;6. Faculty of Natural Sciences, Quy Nhon University, Viet Nam;7. NTT Hi-Tech Institute, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, Ward 13, District 4, Ho Chi Minh City, Viet Nam;1. Department of Physics, Sharif University of Technology, P.O. Box 11555-9161, Tehran, Iran;2. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, P.O. Box 730000, Lanzhou, PR China;3. Department of Chemistry, Alzahra University, P.O. Box 1993893973, Tehran, Iran;4. Department of Mechanical Engineering, Sharif University of Technology, P.O. Box 11555-9567, Tehran, Iran;5. Institute of Nanoscience and Nanotechnology, Sharif University of Technology, P.O. Box 14588-8969, Tehran, Iran |
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| Abstract: | In this work, we report the synthesis of CdS-incorporated porous WS2 by a simple hydrothermal method. The structural, morphological, and optical properties of the samples were examined by X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR), high resolution X-ray photoelectron spectroscopy (XPS) and UV–visible spectrometry. The photocatalytic activities were established for degradation of crystal violet (CV) under UV and visible light irradiation. The CdS-incorporated porous WS2 hybrid demonstrated high photocatalytic activity for degradation of CV pollutant compared to pure CdS nanoparticles and porous WS2 sheets. This result implies that the CdS-incorporated porous WS2 promoted more electron-hole pair transformation under UV and visible light irradiation. This significant enhancement of photocatalytic efficiency of CdS-incorporated porous WS2 photocatalyst under visible light can be ascribed to the presence of CdS nanospheres on the meshed-like WS2 sheets which potentially improves absorption in the visible range enabled by surface plasmon resonance effect of CdS nanospheres. The photostability and reusability of the CdS-porous WS2 were examined through recycling experiments. |
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| Keywords: | Nanocomposites Photocatalysts Surface texture Semiconductor nanomaterials Solar activity |
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