Facile synthesis of TiO2–PC composites for enhanced photocatalytic abatement of multiple pollutant dye mixtures: a comprehensive study on the kinetics, mechanism, and effects of environmental factors

Verma, Priyanshu; Samanta, Sujoy Kumar

doi:10.1007/s11164-017-3209-8

Cited by 28 publications

(7 citation statements)

References 64 publications

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“…The degradation of dye pollutants employing photocatalyst material is very vital; however, most attention has been focused on a single dye component [39], in comparison to the removal of dye mixtures. As far as we know, the photocatalytic activity of the TiO 2 dispersed on modified natural zeolite (clinoptilolite) on the degradation of dye mixtures [40] component has not been reported in the literature before.…”

Section: Introductionmentioning

confidence: 99%

Enhanced degradation of dye mixtures: physicochemical and electrochemical properties of titania dispersed on clinoptilolite, synergistic influence

et al. 2020

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Eliminating dye mixtures in the aquatic environment has been of considerable interest due to the future sustainability of the environment, hence it needs to utilize photocatalytic material with synergistic influence aimed at efficient removal of these pollutants. Titania nanoparticles (NPs) dispersed on dealuminated clinoptilolite (TiO 2 -DCP) was synthesized via a sol-gel route. To determine the synergistic influence of as-prepared catalysts on enhanced degradation of dye mixtures (methyl orange-MO and methylene blue-MB), the physicochemical and electrochemical properties were investigated in detail. In comparison to TiO 2 , the prepared TiO 2 -DCP photocatalyst possessed excellent photocatalytic activity on the degradation of dye mixtures (83%-MO and 94%-MB) after 180 min of ultraviolet light irradiation. The partial aggregation reduction of titania NPs, improved absorption edge for more photons generations and efficient photogenerated charge carriers separation by DCP catalyst support are crucial factors for TiO 2 -DCP photocatalyst, synergistic influence on dye mixture removal in this study. The catalytic activity of TiO 2 -DCP could be reused six reaction times for the removal of the dye mixture with a promising potential for environmental remediation.

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Section: Introductionmentioning

confidence: 99%

Enhanced degradation of dye mixtures: physicochemical and electrochemical properties of titania dispersed on clinoptilolite, synergistic influence

et al. 2020

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“…Outros trabalhos também incluem a determinação de cálcio nas amostras de biodiesel, a síntese de óxido de cálcio suportado em matrizes cerâmicas e o efeito da temperatura de calcinação sobre a atividade catalítica do óxido de cálcio. of dyes in water resources (Xie et al 2018;Verma and Samanta 2018;Alcocer et al 2018). The discharge these colored compounds in the environment raises much concern because of the toxic effects, carcinogenic and mutagenic.…”

Section: Resultsunclassified

Photoelectrocatalysis Properties of Cuwo4 Porous Film Under Polychromatic Light

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et al. 2019

Estudos Interdisciplinares Nas Ciências Exatas E Da Terra E Engenharias 2

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“…As to strategy (2), great interest has received the preparation of organic/inorganic hybrid materials where TiO2 is deposited onto or covered with CN (carbon nitride) films [52,53], "common" carbonaceous structures like amorphous or graphitic carbon [54,55,56], or more "exotic" carbon allotropes like fullerenes, CNTs (carbon nanotubes) and above all graphene [57,58,59,60,61] together with graphene-like materials [23].…”

Section: Heterostructures At Tio2 Surface As Organic and Inorganic Sementioning

confidence: 99%

Molecules and heterostructures at TiO2 surface: the cases of H2O, CO2, and organic and inorganic sensitizers

et al. 2019

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TiO2-based (nano)materials are widely exploited in systems and devices of actual technological interest, because of their outstanding physical and chemical properties, including chemical stability, long durability, non-toxicity abundance and low cost. For this, they are considered ideal for many practical applications including energy-related devices, photocatalysis, but are known to have some limitations. To improve their performance and then to find more efficient materials in the energy and environmental remediation fields, at first the investigation of the surface/interface properties at the molecular scale is required. In this contribution, a critical review of advances in the field of the TiO2 surface chemistry, highlighting the role of interactions at the molecular level, grafting and assembling/fabrication of suitable heterostructures, is reported. A few case studies, from the H2O, CO2 and acetylene interactions until to the grafting of organic/inorganic systems (graphene, MoS2) at the TiO2 surface, are highlighted. The discussed case studies are argued from their principles to the technological relevance. KeywordsTiO2 photocatalysis H2O, CO2 and C2H2 adsorption Graphene and MoS2/TiO2 hybrids Surface heterostructures IR spectroscopy STM and AFM HR-TEM Electronic spectroscopy Quantum modelling Preliminary remarks: motivation and structure of this review Particles and nanoparticles resulting from the combination of titanium, the second transition element more common in Earth's crust after iron, with oxygen to form TiO2, mainly in the anatase and rutile phases, are used in a wide array of products, devices and technologies. As reported by the Titanium Dioxide Manufacturers Associations (TDMA, https://tdma.info), gathering since 1974 the major producers of this material in Europe, the commercial and research area representing the "first coordination sphere" of the authors of this review, application for TiO2 across the EU, as well as across the globe, include paints, papers, pharmaceuticals, sunscreen and food (where it is listed as colourant E171). As a photocatalyst, titanium dioxide can be added to paints, cements, windows and tiles in order to decompose environmental pollutants, and as a white pigment (in this case called titanium white, Pigment White 6 or CI 77891), TiO2 is one of the most important raw materials for paints and coatings. Moreover, the range of innovative uses for TiO2 keeps on increasing. In recent years, for example, it has been used in the manufacture of cheap and efficient solar cells and building facades that can neutralize air pollution.

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Facile synthesis of TiO2–PC composites for enhanced photocatalytic abatement of multiple pollutant dye mixtures: a comprehensive study on the kinetics, mechanism, and effects of environmental factors

Cited by 28 publications

References 64 publications

Enhanced degradation of dye mixtures: physicochemical and electrochemical properties of titania dispersed on clinoptilolite, synergistic influence

Enhanced degradation of dye mixtures: physicochemical and electrochemical properties of titania dispersed on clinoptilolite, synergistic influence

Photoelectrocatalysis Properties of Cuwo4 Porous Film Under Polychromatic Light

Molecules and heterostructures at TiO2 surface: the cases of H2O, CO2, and organic and inorganic sensitizers

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