TiO2/Fe2O3: Type-I Heterostructures for Electrochemical Dye Degradation/Water Splitting Studies

Behara, Dilip Kumar; Mukkara, Sudha Maheswari; Tammineni, Jalajakshi

doi:10.1007/s40034-019-00148-y

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…Therefore, the TiO2 and ZnO metal oxide heterostructure assembly achieves faster degradation compared to the individual metal oxides, and this behavior exemplifies the importance of heterostructure assemblies in dye degradation studies. Further, the detailed mechanism of crystal violet dye degradation and the degradation pathways were explained in our previous work [34,35].…”

Section: Overall Discussionmentioning

confidence: 99%

TiO2/ZnO: Type-II Heterostructures for electrochemical crystal violet dye degradation studies

Behara

Tammineni

Maheswari

2020

Maced. J. Chem. Chem. Eng.

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Semiconductor nanomaterials with proper band edge alignments forming “heterostructure” assemblies have significant importance in water splitting, dye degradation, and other electrochemical studies. The formed heterojunction between material phases facilitates fast charge carrier transport and, thereby, improves electrochemical performance in associated processes. Herein, we report a type-II heterostructure combining TiO2 and ZnO nanomaterials for electrochemical crystal violet dye degradation studies. The rationale in choosing the above materials (TiO2, ZnO) in the present study includes stability, lack of toxicity, and high oxidation power, but they also facilitate fast charge carrier movements due to proper band edge alignments, forming a type-II heterostructure assembly. Cyclic voltammetry, combined with ultraviolet-visible analysis, was used to identify the cathodic and anodic peak currents and trace the exact mechanism of dye degradation. The electro-catalytic performance of TiO2/ZnO heterostructured materials fabricated on titania (Ti) substrate show higher performance, in comparison to all individual material interfaces, due to synergistic interaction and synchronized charge transport.

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Section: Overall Discussionmentioning

confidence: 99%

TiO2/ZnO: Type-II Heterostructures for electrochemical crystal violet dye degradation studies

Behara

Tammineni

Maheswari

2020

Maced. J. Chem. Chem. Eng.

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A New Perspective on the Green Strategy of Close Cycle Dissociation of H2S

Lal¹,

Pal

Nayak

et al. 2022

J. Inst. Eng. India Ser. E

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Adsorptive removal of methylene blue (MB) and malachite green (MG) dyes from aqueous solutions using graphene oxide (GO)

Chilakapati

Kumar

Satyanarayana

et al. 2021

Zeitschrift Für Physikalische Chemie

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Graphene oxide (GO) synthesized via modified Hummers method was studied for adsorption of methylene blue (MB) and malachite green (MG) dyes from aqueous solutions. It is hypothesized that electrostatic interactions between dye molecules and surface of GO will facilitate charge carrier movements and degrade the dye in an efficient way. The as synthesized GO was characterized using various characterization techniques such as XRD, Raman, FTIR, UV–Vis, SEM and EDAX. The experimental results suggest that dye removal percentage will increase with increase in adsorbent dosage, time as well as solution pH and the process was exothermic in nature. The adsorption data at 293 K could be fitted by Langmuir equation with a maximum adsorption amount of 119.04, 102.4 mg/g and Langmuir adsorption equilibrium constant of 1.58, 0.867 L/mg for MB and MG dyes, respectively. The outcomes of present article will help not only to understand the adsorption characteristics of GO on MB and MG dyes but also paves path towards development of highly oxidized GO surface for degradation of complex dyes.

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TiO2/Fe2O3: Type-I Heterostructures for Electrochemical Dye Degradation/Water Splitting Studies

Cited by 3 publications

References 19 publications

TiO2/ZnO: Type-II Heterostructures for electrochemical crystal violet dye degradation studies

TiO2/ZnO: Type-II Heterostructures for electrochemical crystal violet dye degradation studies

A New Perspective on the Green Strategy of Close Cycle Dissociation of H2S

Adsorptive removal of methylene blue (MB) and malachite green (MG) dyes from aqueous solutions using graphene oxide (GO)

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