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Browsing by Author "Van Sittert, CGCE"

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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
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
Recent progress in the development of semiconductor-based photocatalyst materials for applications in photocatalytic water splitting and degradation of pollutants

Author: Opoku, F ; Govender, Krishna ; Van Sittert, CGCE ; Govender, PP Date: Jul 2017 Photocatalytic approaches in the visible region show promising potential in photocatalytic water splitting and water treatment to boost water purification efficiency. For this reason, developing cost-effective and efficient photocatalysts for ... Read more
Tuning the electronic structures, work functions, optical property and stability of bifunctional hybrid graphene oxide/V–doped NaNbO3 type–II heterostructures: A promising photocatalyst for H2 production

Author: Opoku, F ; Govender, Krishna ; Van Sittert, CGCE ; Govender, PP Date: Sep 2018 The depleting sources of non–renewable fossil fuels and their adverse effect on the environment have driven the global interest to find an efficient and suitable material for hydrogen generation via a water splitting process. In this theoretical ... 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 Author "Van Sittert, CGCE"

Browsing by Author "Van Sittert, CGCE"

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