Layered KTO/BiOCl nanostructures for the efficient visible light photocatalytic degradation of harmful dyes

Durai, Mani; Chauhan, Deepak; Durai, Mathivanan; Saravanan, Mathavan; Kumaravel, S.; Erusappan, Elangovan; Ahn, Young‐Ho

doi:10.1016/j.chemosphere.2022.135659

Cited by 20 publications

(2 citation statements)

References 58 publications

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“…From the figure, we can clearly see the layered structure of the sample. This is consistent with the well-known morphology of potassium titanate [40][41][42]. Through calculation, the layer spacing is 0.85 nm, which is much larger than the hydration radius of K + (0.133 nm) [43,44].…”

Section: Structure and Morphologysupporting

confidence: 86%

Synthesis of Composite Titanate Photocatalyst via Molten Salt Processing and Its Enhanced Photocatalytic Properties

Cheng,

Li,

Hamukwaya

et al. 2023

Nanomaterials

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Photocatalysis plays a pivotal role in environmental remediation and energy production and improving the efficiency of photocatalysts, yet enhancing its efficiency remains a challenge. Titanate has been claimed to be a very promising material amongst various photocatalysts in recent years. In this work, a novel composite photocatalyst of sodium titanate and potassium titanate was synthesized via a simple hydrothermal and molten salt calcination method. Low melting point nitrate was added in the calcination process, which helps reduce the calcination temperature. The as-prepared composite sample showed excellent photocatalytic performance compared with commercial P25 in the visible light range. According to the characterization of XRD, SEM, TEM, BET, UV–Vis, and photocatalytic property testing, the composite’s photocatalytic performance results are due to the dual optimization brought about by the layered structure and composite of titanium salts forming a heterojunction. We believe that the composite has significant application potential for the use of titanate in the field of photocatalysis. Notably, this study employed well-documented synthesis methods and adhered to established protocols for experimental procedures.

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Section: Structure and Morphologysupporting

confidence: 86%

Synthesis of Composite Titanate Photocatalyst via Molten Salt Processing and Its Enhanced Photocatalytic Properties

Cheng,

Li,

Hamukwaya

et al. 2023

Nanomaterials

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show abstract

“…Therefore, it is essential to find practical solutions to remove such POPs from the environmental [5,6]. Photocatalysis has gained recognition as an environmentally friendly technology at ambient temperature for efficiently mineralizing POPs [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Hafnium Oxide Nanoparticle Decorated on Graphene Nanosheet and Its Photocatalytic Degradation of Organic Pollutants under UV-Light Irradiation

et al. 2022

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The HfO2 nanoparticles and the nanocomposites of HfO2-graphene (10, 30, and 50 wt%) were prepared via precipitation and simple mixing method. The XRD pattern confirmed the presence of monoclinic HfO2 and hexagonal graphene in the nanocomposite. Raman spectroscopy studies revealed the formation of HfO2-graphene nanocomposite. According to SEM and TEM images the HfO2, NPs are spherical, and their size is less than 10 nm, anchored on the surface of the graphene sheets. The EDX spectrum shows carbon, oxygen, and HfO2 and reveals the formation of the HfO2-graphene nanocomposite. The UV-vis absorption spectra show the optical properties of synthesized HfO2-graphene nanocomposite. The study examines the influence of different ratios of the addition of graphene on the photocatalytic activity of HfO2-graphene. It was found that the HfO2-graphene (50 wt%) 40 mg nanocomposite exhibits enhanced photocatalytic activity than the bare HfO2 towards the methylene blue photodegradation, an aromatic pollutant in water under UV light irradiation, which can be applied optimally for individually wastewater management system. The HfO2-graphene (50 wt%) photocatalyst degrades 81 ± 2% of tetracycline in 180 min, implying that tetracycline can be degraded more efficiently under UV light. The enhancement in photocatalytic activity under UV light illumination can be attributed to the effective separation of photogenerated electrons, inhibiting recombination in the HfO2-graphene composite.

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Deposition of Ag@AgCl onto Flower-Like BiOCl for Promoting the Degradation of Methyl Orange: The Narrow Bandgap and Surface Plasmon Resonance Effect

Zou,

Mao,

et al. 2024

Korean J. Chem. Eng.

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Layered KTO/BiOCl nanostructures for the efficient visible light photocatalytic degradation of harmful dyes

Cited by 20 publications

References 58 publications

Synthesis of Composite Titanate Photocatalyst via Molten Salt Processing and Its Enhanced Photocatalytic Properties

Synthesis of Composite Titanate Photocatalyst via Molten Salt Processing and Its Enhanced Photocatalytic Properties

Facile Synthesis of Hafnium Oxide Nanoparticle Decorated on Graphene Nanosheet and Its Photocatalytic Degradation of Organic Pollutants under UV-Light Irradiation

Deposition of Ag@AgCl onto Flower-Like BiOCl for Promoting the Degradation of Methyl Orange: The Narrow Bandgap and Surface Plasmon Resonance Effect

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