Author
Halimeh Moradi
Bio: Halimeh Moradi is an academic researcher from Malek-Ashtar University of Technology. The author has contributed to research in topics: Visible spectrum & Photocatalysis. The author has an hindex of 2, co-authored 2 publications receiving 128 citations.
Papers
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TL;DR: Among the samples, Fe-1wt% doped TiO2 nanoparticles showed the highest photocatalytic decolorization of RR198 under visible light irradiation.
136 citations
TL;DR: In this article, Fe-doped (1.5wt%) TiO2 loaded on the activated carbon nano-composite was prepared using a solgel method using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), photoluminescence (PL) spectrograms and UV-Vis diffuse reflectance spectrographs (DRS).
48 citations
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TL;DR: The main degradation by-products were recognized by GC-MS method to propose the possible sonocatalytic mechanism for the degradation of ciprofloxacin (CIP) and the stability of the nanocomposite was studied.
172 citations
15 Jun 2020
TL;DR: The metal oxide semiconductors with a bandgap between 2 and 4 eV are an important class of compounds in the electronics industry and for photocatalysis as mentioned in this paper, with the demand for these materials expanding rapidly.
Abstract: Metal oxide semiconductors with a bandgap between 2 and 4 eV are an important class of compounds in the electronics industry and for photocatalysis. With the demand for these materials expanding ra...
128 citations
TL;DR: An overview of current research into the development, synthesis, photocatalytic bacterial activity, biocompatibility and cytotoxic properties of various visible-light active titanium dioxide (TiO2) nanoparticles (NPs) and their nanocomposites is provided.
Abstract: This article provides an overview of current research into the development, synthesis, photocatalytic bacterial activity, biocompatibility and cytotoxic properties of various visible-light active titanium dioxide (TiO2) nanoparticles (NPs) and their nanocomposites. To achieve antibacterial inactivation under visible light, TiO2 NPs are doped with metal and non-metal elements, modified with carbonaceous nanomaterials, and coupled with other metal oxide semiconductors. Transition metals introduce a localized d-electron state just below the conduction band of TiO2 NPs, thereby narrowing the bandgap and causing a red shift of the optical absorption edge into the visible region. Silver nanoparticles of doped TiO2 NPs experience surface plasmon resonance under visible light excitation, leading to the injection of hot electrons into the conduction band of TiO2 NPs to generate reactive oxygen species (ROS) for bacterial killing. The modification of TiO2 NPs with carbon nanotubes and graphene sheets also achieve the efficient creation of ROS under visible light irradiation. Furthermore, titanium-based alloy implants in orthopedics with enhanced antibacterial activity and biocompatibility can be achieved by forming a surface layer of Ag-doped titania nanotubes. By incorporating TiO2 NPs and Cu-doped TiO2 NPs into chitosan or the textile matrix, the resulting polymer nanocomposites exhibit excellent antimicrobial properties that can have applications as fruit/food wrapping films, self-cleaning fabrics, medical scaffolds and wound dressings. Considering the possible use of visible-light active TiO2 nanomaterials for various applications, their toxicity impact on the environment and public health is also addressed.
107 citations
TL;DR: The stability test through chronoamperometry showed that S- biVO4 was more stable than H-BiVO4, and it can be depicted from the growth mechanism that ultrasonication played a definite role in the overall synthesis of pseudo-flower shaped S-Bi VO4 MAs.
92 citations
TL;DR: The results demonstrate a high potential of chitosan-based ternary metal selenide nanocomposites for abatement of dye pollutants from the industrial wastewater.
91 citations