Kinetic study of photodegradation of methylene blue over P25-graphene and P25-CNT nanocomposites using Monte Carlo simulation

Jalali, Hamed Moradmand

doi:10.1134/s0036024417070159

Cited by 4 publications

(1 citation statement)

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“…A large amount of research work for the TiO 2 has been done to enlarge visible‐light response range and efficiently impede recombination of photoexcited electron‐hole pairs . CNTs as the popular materials have been widely used as electron conductor which is equal to that of graphene and absorbent because of 1D structure, good stability and great specific surface, and so on, and can combine hybrid catalysts with a lots of functional nanomaterials for excellent inorganic semiconductor . [8] Hence, the CNTs‐TiO 2 composites as a versatile candidate enhance photocatalytic performance and effectively separate the electron‐hole pairs due to the needle and broad leaf‐shaped TiO 2 nanoleaves growing on surface of CNT stem .…”

Section: Introductionmentioning

confidence: 99%

Visible‐Light Response and High‐Efficiency Photocatalytic Elimination of Polycyclic Organic Pollutants of Layer‐By‐Layer Assembled Ternary Nanotubular Catalysts

et al. 2018

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Recently, visible‐light response and high–efficient photocatalysis for polycyclic organic pollutants of cancer risk has attracted great attention. However, the efficient control and heterojunction fabrication of nanocomposite catalysts for enhanced separation and transfer of interfacial charges remains challenging. Herein, a ternary heterojunction composite photocatalyst (HTTC) was fabricated by utilizing the ultrathin layered titanium dioxide (TiO2) nanostructures, with photocatalytic reactive facets (A101 and R101) prepared from the commercially available TiO2, coating onto outside surface of multi‐walled carbon nanotubes (CNTs) with chemical connection of Ti‐O=C and Ti‐O−C bond, and then the single layer H2TCPP molecules chemically coated onto outside surface of ultrathin layered TiO2 nanostructures with formation of Ti−O‐C=O chemical bond by layer‐by‐layer (LbL) assembly. The interface layer synergistic effects greatly enhance photocatalytic efficiency for high concentrations solution of polycyclic organic pollutants (methylene blue (MB), Rhodamine B (RhB) and oxytetracycline (OTC) under visible light irradiation, and the photodegradation rates of the photocatalysts for MB (and RhB) were 61 times (and 8 times) higher than that of pure P25. The joint interfacial fabrication strategy and composite engineering affords us a facile guideline for the nanocomposite photocatalysts for environmental protection and ecological conservation.

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Section: Introductionmentioning

confidence: 99%