Next generation of pure titania nanoparticles for enhanced solar-light photocatalytic activity

Nagaraj, G.; Raj, A. Dhayal; Irudayaraj, A. Albert

doi:10.1007/s10854-017-8386-0

Cited by 11 publications

(10 citation statements)

References 41 publications

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“…This very low grain size reason for this may be the oxygen defect in the surface, which prevents the breaking of Ti-O-Ti bonds, thereby retaining the anatase phase even at an enhanced temperature [5,6]. The detailed discussion of PIM regarding the mechanism involved in producing an oxygen-rich sample has been reported earlier [1]. XRD results have a hightemperature stable anatase phase that clearly matches Raman spectroscopy study.…”

Section: Resultssupporting

confidence: 68%

“…This better performance of pure anatase TiO 2 nanoparticles could be attributed to the nano-size particles, strong visible-light absorption ability and increased lifetime of photo-excited electrons and holes [5,15,16]. Also, the PIM prepared 10 days TiO 2 sample calcined at 1000 °C shows an enhanced photocatalytic ability than the standard Degussa P25 TiO 2 nanoparticles as reported in the literatures [1,5,17]. Thus, it can be conclude that the PIM prepared anatase TiO 2 nanoparticles with high thermal stability is a promising low-cost photocatalyst for elimination of organic contaminants from waste-water using freely available solar light illumination.…”

Section: Photocatalytic Degradation Studiesmentioning

confidence: 64%

“…2a. The peak at 418 cm −1 may be related to the Ti-O-Ti bond and 1089 cm −1 indicating the C-O stretching vibration (oxygen-rich) [1,6,9]. Figure 2b shows the photoluminescence (PL) spectra of the calcined at 800 °C TiO 2 recorded in the wavelength ranging from 325 to 700 nm at room temperature.…”

Section: Resultsmentioning

confidence: 99%

“…Titanium dioxide (TiO 2 ) has been attracted much attention as the semiconductor in the area of photocatalysts, solar energy conversion, water purification, self-cleaning, antibacterial, and drug delivery [1,2]. More works have been focused on TiO 2 due to its high redox potential, strong oxidizing power, photostability, non-toxicity, and chemical inertness.…”

Section: Introductionmentioning

confidence: 99%

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Facile synthesis of improved anatase TiO2 nanoparticles for enhanced solar-light driven photocatalyst

et al. 2020

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Herein, we have reported a new Photon Induced Method (PIM) to the synthesis of enhanced temperature stable anatase phased TiO 2 nanoparticles. These TiO 2 nanoparticles exhibited an anatase phase even after calcinating at 800 °C for average crystallite size is 9 nm with a bandgap is 2.98 eV, stretching into the visible light region are identified from DRS, and photoluminescence spectroscopic studies. Whereas, the standard and others reported TiO 2 has existed a 100% rutile phase at this same temperature. The reversibly improved TiO 2 has attained from the PIM method by tuning of oxygen vacancy during the preparation condition. The enhanced methylene blue dye under in the solar-light 100% degradation within 10 min is a very novel report, not reported elsewhere. The obtained pure anatase TiO 2 with high chemical reactivity has a great potential for antibacterial, cancer cells kill, photocatalysis and solar energy conversion applications under solar-light irradiation.

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Section: Resultssupporting

confidence: 68%

Section: Photocatalytic Degradation Studiesmentioning

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Facile synthesis of improved anatase TiO2 nanoparticles for enhanced solar-light driven photocatalyst

et al. 2020

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“…1. The polycrystalline nature of the samples have been confirmed through the appearance of multiple peaks [24]. All the diffraction peaks can be readily indexed to the orthorhombic phase of the bismuth sulfide.…”

Section: Structural Analysismentioning

confidence: 91%

Morphology Manipulation and Related Properties of High Crystalline Bi2S3 Nanorods by Reflux Approach

Arumugam¹,

Raj²,

Irudayaraj³

2018

JNST

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One dimensional Bi2S3 nanorods have been successfully synthesized by a very simple reflux method with different precursor concentration for 2 hours at 180 �C. The as-synthesized Bi2S3 powders were characterized by X-ray diffraction (XRD), high resolution scanning electron microscope (HRSEM), high resolution transmission microscope (HRTEM), UV-Vis spectrometer, Fourier transform infrared (FTIR) spectrometer. X-ray diffraction (XRD) results show that the resulting nanocrystals have an orthorhombic structure. X-ray diffraction patterns indicate a polycrystalline nature and the crystallite sizes seem increase with increase in the concentration. The HRSEM and HRTEM images reveal that the diameter of the nanorods increase with increasing concentration of the precursor. Morphological analysis reveals that the as-prepared Bi2S3 nanorods can be tuned to morphology by varying precursor concentration from 0.01 M to 0.001 M. The bismuth nitrate, which is known to be a linear polymer, plays a critical role as a precursor and a template for the growth of uniform Bi2S3 nanorods. Bi2S3 nanorods are good absorbents of solar radiation and hence can be used in solar cells.

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Enhanced Photocatalytic Activity of Metal‐Metal‐Nonmetal Multidoped TiO₂ Nanoparticles towards Visible Light

Khatun,

Islam,

Sumona

et al. 2024

ChemistrySelect

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TiO2 is the most important and remarkable material in photocatalytic applications. In the present work, pure and doped TiO2 nanoparticles were fabricated by the sol‐gel synthesis route. The impact of the metal and nonmetal dopants on the performance of the photocatalysts was examined systematically. X‐ray diffraction (XRD) analysis affirmed the existence of anatase and rutile phases in the fabricated nanoparticles. The diffuse reflectance spectroscopy (DRS) analysis confirmed that all doped TiO2 nanoparticles have a lower bandgap than undoped TiO2, and (N, Cu, Ag)‐doped TiO2 nanoparticles having the lowest bandgap (2.38 eV), demonstrating that metal‐metal‐nonmetal multidoping improves TiO2′s sensitivity towards visible light. In comparison to pure and other doped TiO2 nanoparticles, methylene blue (MB) photodegrades at a faster rate (rate constant of 0.04878 min−1) with the highest photocatalytic activity (99.61 % MB degradation) on the surface of (N, Cu, Ag)‐doped TiO2. The photocatalytic activities of TiO2 nanoparticles have been improved by multidoping in the following sequence: TiO2<N‐doped TiO2<(N, Cu)‐doped TiO2<(N, Ag)‐doped TiO2<(N, Cu, Ag)‐doped TiO2.

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Next generation of pure titania nanoparticles for enhanced solar-light photocatalytic activity

Cited by 11 publications

References 41 publications

Facile synthesis of improved anatase TiO2 nanoparticles for enhanced solar-light driven photocatalyst

Facile synthesis of improved anatase TiO2 nanoparticles for enhanced solar-light driven photocatalyst

Morphology Manipulation and Related Properties of High Crystalline Bi2S3 Nanorods by Reflux Approach

Enhanced Photocatalytic Activity of Metal‐Metal‐Nonmetal Multidoped TiO₂ Nanoparticles towards Visible Light

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Next generation of pure titania nanoparticles for enhanced solar-light photocatalytic activity

Cited by 11 publications

References 41 publications

Facile synthesis of improved anatase TiO2 nanoparticles for enhanced solar-light driven photocatalyst

Facile synthesis of improved anatase TiO2 nanoparticles for enhanced solar-light driven photocatalyst

Morphology Manipulation and Related Properties of High Crystalline Bi2S3 Nanorods by Reflux Approach

Enhanced Photocatalytic Activity of Metal‐Metal‐Nonmetal Multidoped TiO2 Nanoparticles towards Visible Light

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Enhanced Photocatalytic Activity of Metal‐Metal‐Nonmetal Multidoped TiO₂ Nanoparticles towards Visible Light