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solar-photocatalytic-degradation
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Tuning composition of electrospun ZnO/CuO nanofibers: toward controllable and efficient solar photocatalytic degradation of organic pollutants
, Article Journal of Physical Chemistry C ; Volume 121, Issue 6 , 2017 , Pages 3327-3338 ; 19327447 (ISSN) ; Samadi, M ; Mahmoodi, N. M ; Pourjavadi, A ; Mehdipour, H ; Moshfegh, A. Z ; Sharif University of Technology
American Chemical Society
2017
Abstract
ZnO/CuO nanofibers, with different CuO concentrations, were fabricated by one-step electrospinning of the polymer precursor and annealing in air. Scanning electron microscopy (SEM) showed smooth and beadless morphology for the synthesized nanofibers, while X-ray diffraction (XRD) analysis revealed formation of hexagonal and monoclinic crystalline structure phases for ZnO and CuO nanofibers, respectively. X-ray photoelectron spectroscopy (XPS) analysis confirmed the presence of CuO on the surface of ZnO nanofibers. For further confirming the formation of chemical bonds, Fourier transform infrared (FT-IR) spectroscopy was employed. The effect of Cu contents in the overall electronic band...
Photocatalytic removal of 2-nitrophenol using silver and sulfur co-doped TiO2 under natural solar light
, Article Water Science and Technology ; Volume 72, Issue 3 , 2015 , Pages 339-346 ; 02731223 (ISSN) ; Delparish, A ; Toufigh Bararpour, S ; Abedini Najafabadi, H ; Zakeri, S. M. E ; Vossoughi, M ; Sharif University of Technology
IWA Publishing
2015
Abstract
To overcome the drawback of poor solar light utilization brought about by the narrow photoresponse range of TiO2, a silver and sulfur co-doped TiO2 was synthesized. Using the prepared catalyst, solar photocatalytic degradation of 2-nitrophenol (2-NP) by a TiO2-based catalyst was studied for the first time. Effects of the co-doping on the structural, optical and morphological properties of the synthesized nanoparticles were investigated by different characterization methods: X-ray diffraction, N2 adsorption-desorption measurements, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, UV-visible diffuse reflectance spectroscopy and Fourier...