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Browsing by Subject "Photocatalysis"

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Achieving Controllable MoS2 Nanostructures with Increased Interlayer Spacing for Efficient Removal of Pb(II) from Aquatic Systems

Author: Kumar, Neeraj ; Fosso-Kankeu, E ; Ray, Suprakas S Date: May 2019 The development of new synthesis approaches for MoS2 is necessary to achieve controlled morphologies and unique physicochemical properties that can improve its efficiency in particular applications. Herein, a facile one-step hydrothermal route ... Read more
Bionanocomposite hydrogel for the adsorption of dye and reusability of generated waste for the photodegradation of Ciprofloxacin: A demonstration of the circularity concept for water purification

Author: Kumar, Neeraj ; Mittal, H ; Alhassan, SM ; Ray, Suprakas S Date: 2018 Adsorption has emerged as a simple and economical approach to water decontamination; however, it creates large amounts of secondary toxic waste following the removal of the effluents from the water. The present investigation introduces an ... Read more
Enhancing photocatalytic activity for hydrogen production and pollutant degradation by modifying tetragonal ZrO2 with monolayers slab surface of BiVO4, Ag3PO4, SrTiO3 and WO3: A first-principles study

Author: Opoku, F ; Govender, Krishna ; Van Sittert, CGCE ; Govender, PP Date: Oct 2017 Semiconductor-based photocatalysis has received increasing attention in energy storage and environmental remediation process due to the abundant solar energy. For this purpose, heterostructures of ZrO2 coupled with BiVO4, Ag3PO4, SrTiO3 and ... Read more
Facile synthesis of α-Fe2O3/WO3 composite with an enhanced photocatalytic and photo-electrochemical performance

Author: Senthil, RA ; Priya, A ; Theerthagiri, J ; Selvi, A ; Palaniyandy, Nithyadharseni ; Madhavan, J Date: Nov 2018 The influence of hematite iron oxide (α-Fe2O3) nanoparticles in tungsten oxide (WO3) nanorods photocatalyst on photodegradation of organic pollutant was investigated in the present work. The spherical-shaped α-Fe2O3 nanoparticles and WO3 ... Read more
Heterostructured CeO2-M (M = Co, Cu, Mn, Fe, Ni) oxide nanocatalysts for the visible-light photooxidation of pinene to aroma oxygenates

Author: Mavuso, MA ; Makgwane, Peter R ; Ray, Suprakas S Date: Apr 2020 Herein, we report the enhanced photocatalytic activity of heterostructured CeO2 nanocatalysts interfaced with Cu, Co, Ni, Mn, and Fe metal oxides. The CeO2 catalysts exhibited an enhanced red shift in the visible-light response compared to ... Read more
Hybrid DFT study of MWCNT/Zr-doped SrTiO3 heterostructure: Hydrogen production, electronic properties and charge Carrier mediator role of Zr4+ ion

Author: Opoku, F ; Govender, Krishna ; van Sittert, CGCE ; Govender, PP Date: Dec 2018 Over the past decade, remarkable efforts have been made to design low-cost, non-toxic, stable and efficient photocatalyst for water splitting. In the present work, an effective alternative approach to enhance hydrogen production of SrTiO(sub)3 ... Read more
Insights into the photocatalytic mechanism of mediator-free direct Z-scheme g-C3N4/Bi2MoO6(010) and g-C3N4/Bi2WO6(010) heterostructures: A hybrid density functional theory study

Author: Opoku, F ; Govender, Krishna ; Van Sittert, CGCE ; Govender, PP Date: Jan 2018 Graphite-like carbon nitride (g-C3N4)-based heterostructures have received much attention due to their prominent photocatalytic activity. The g-C3N4/Bi2WO6 and g-C3N4/Bi2MoO6 heterostructures, which follow a typical hetero-junction charge ... Read more
Literature review on the application of titanium dioxide reactive surfaces on urban infrastructure for depolluting and self-cleaning applications

Author: Osburn, L Date: Mar 2008 This study was performed in order to understand what work has been completed regarding the application of reactive surfaces primarily for pollution abatement in urban areas. These surfaces could then be applied to South African infrastructure ... Read more
Recent development on carbon based heterostructures for their applications in energy and environment: A review

Author: Jayaraman, T ; Murthy, AP ; Elakkiya, V ; Chandrasekaran, S ; Palaniyandy, Nithyadharseni ; Khan, Z ; Senthil, RA ; Shanker, R ; Raghavender, M ; Kuppusami, P ; Jagannathan, M ; Ashokkumar, M Date: Aug 2018 Nanostructured carbon based materials with unique and tunable properties make them to be utilized for various applications in different forms especially for energy and environmental applications. Carbon is a distinctive chemical element which ... Read more
Recent developments of metal oxide based heterostructures for photocatalytic applications towards environmental remediation

Author: Theerthagiri, J ; Chandrasekaran, S ; Salla, S ; Elakkiya, V ; Senthil, RA ; Nithyadharseni, Palaniyandy ; Maiyalagan, T ; Micheal, K ; Ayeshamariam, A ; Valan Arasu, M ; Al-Dhabi, NA ; Kim, H Date: Nov 2018 The advancement of heterostructured visible-light active metal oxide based semiconductor photocatalysts have received an enormous consideration in the field of environmental remediation due to their excellent growth with unique surface ... Read more
A review on ZnO nanostructured materials: Energy, environmental and biological applications

Author: Theerthagiri, J ; Salla, S ; Senthil, RA ; Palaniyandy, Nithyadharseni ; Madankumar, A ; Arunachalam, P ; Maiyalagan, T ; Kim, H Date: Jul 2019 Zinc oxide (ZnO) is an adaptable material that has distinctive properties, such as high-sensitivity, large specific area, non-toxicity, good compatibility and a high isoelectric point, which favours it to be considered with a few exceptions. ... Read more
Role of MoS2 and WS2 monolayers on photocatalytic hydrogen production and the pollutant degradation of monoclinic BiVO4: a first-principles study

Author: Opoku, F ; Govender, Krishna ; van Sittert, CGCE ; Govender, PP Date: Oct 2017 The global dependence on exhaustible fossil fuel resources has made the search for an alternative renewable and sustainable fuel more urgent. Photocatalysis has gained increasing consideration as a promising technology to solve problems ... Read more
Synthesis of radially aligned nano-rutile modified with Au and Ni for the photodegradation of methyl orange

Author: Dziike, F ; Franklyn, PJ ; Durbach, SH ; Maubane, M ; Hlekelele, Lerato Date: Aug 2018 Radially aligned nano-rutile (RANR) was synthesized using the hydrothermal technique. The RANR structure was formed by the radial aggregation of nanorods with an average width of 9 nm. The radii of RANR ranged between 1.2–1.6 µm. Au and Ni ... Read more
Understanding the synergistic effects, optical and electronic properties of ternary Fe/C/S-doped TiO2 anatase within the DFT 1 U approach

Author: Opoku, F ; Govender, Krishna ; Van Sittert, CGCE ; Govender, PP Date: Sep 2017 Although TiO2 is an efficient photocatalyst, its large band gap limits its photocatalytic activity only to the ultraviolet region. An experimentally synthesized ternary Fe/C/S-doped TiO2 anatase showed improved visible light photocatalytic ... Read more

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Browsing by Subject "Photocatalysis"

Browsing by Subject "Photocatalysis"

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