Structure sensitive photocatalytic reduction of nitroarenes over TiO
                2

Challagulla, Swapna; Tarafder, Kartick; Ganesan, Ramakrishnan; Roy, Sounak

doi:10.1038/s41598-017-08599-2

Cited by 213 publications

(124 citation statements)

References 67 publications

(45 reference statements)

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“…On the contrary, the Raman spectrum of the powder calcinated at 800 °C shows three optical phonon peaks of the rutile phase: a very low-intensity mode centred at 143 cm −1 and two high-intensity modes at 446 and 609 cm −1 , related to the B 1g , E g and A 1g symmetries, respectively. The band observed around 235 cm −1 is generally attributed to the two-photon scattering [19]. In Fig.…”

Section: Resultsmentioning

confidence: 82%

Effect of temperature on the physical, optical and photocatalytic properties of TiO2 nanoparticles

et al. 2020

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In this paper we describe the effect of calcination temperature on the structural, morphological, optical and photocatalytic properties of TiO 2 nanoparticles. The titanium dioxide powders were produced by the sol-gel method starting from titanium tetraisopropoxide (TTIP) in neutral aqueous medium (pH 5.5). After that, the TiO 2 nanoparticles were treated at three different calcination temperatures for 4 h: 100, 450 and 800 °C. Then, the powders were characterized by XRD, Raman and photoluminescence techniques. We observed the anatase phase for the powders treated at 100 and 450 °C and rutile for that treated at 800 °C. The photocatalytic activity of the TiO 2 powders was investigated using Methylene Blue test and showed a strong correlation with the temperature (i.e. TiO 2 phase). The better photocatalysis exhibited by the nanoparticles treated at 100 and 450 °C compared to the powder at 800 °C was due to the higher recombination of photo-generated electrons and holes of rutile with respect to anatase. Graphic abstract

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Section: Resultsmentioning

confidence: 82%

Effect of temperature on the physical, optical and photocatalytic properties of TiO2 nanoparticles

et al. 2020

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“…These values agree well with the band gap of anatase TiO 2 reported in the literature (3.2 to 3.4 eV) and thereby con-rming the semiconducting nature of the obtained thin lms. 66,67 The metal-containing resin formulations were studied for their suitability for imprinting under laboratory conditions. A polydimethylsiloxane (PDMS) stamp was pressed over the spincoated TAP-0.5 lm and irradiated with UV light.…”

Section: Resultsmentioning

confidence: 99%

Oxygen insensitive thiol–ene photo-click chemistry for direct imprint lithography of oxides

2018

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“…The sol-gel method may be used to obtain oxide systems containing TiO 2 . Titanium dioxide, because of its photocatalytic [147,148,149] and photoelectrochemical properties [150,151], represents an interesting base for the production of multifunctional oxide systems. There has recently been a marked growth in interest in such materials as TiO 2 -ZnO and TiO 2 -ZrO 2 oxide systems, in view of the useful properties of zinc oxide (photocatalytic, photoelectrochemical and photoluminescent) and zirconium dioxide (photocatalytic and photoelectrochemical).…”

Section: Methods Of Synthesis Of Titania-based Materialsmentioning

confidence: 99%

Titania-Based Hybrid Materials with ZnO, ZrO2 and MoS2: A Review

2018

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Titania has properties that enable it to be used in a variety of applications, including self-cleaning surfaces, air and water purification systems, hydrogen evolution, and photoelectrochemical conversion. In order to improve the properties of titanium dioxide, modifications are made to obtain oxide/hybrid systems that are intended to have the properties of both components. In particular, zinc oxide, zirconia and molybdenum disulfide have been proposed as the second component of binary systems due to their antibacterial, electrochemical and photocatalytic properties. This paper presents a review of the current state of knowledge on the synthesis and practical utility of TiO2-ZnO and TiO2-ZrO2 oxide systems and TiO2-MoS2 hybrid materials. The first part focuses on the hydrothermal method; then a review is made of the literature on the synthesis of the aforementioned materials using the sol-gel method. In the last section, the literature on the electrospinning method of synthesis is reviewed. The most significant physico-chemical, structural and dispersive-morphological properties of binary hybrid systems based on TiO2 are described. A key aim of this review is to indicate the properties of TiO2-ZnO, TiO2-ZrO2 and TiO2-MoS2 hybrid systems that have the greatest importance for practical applications. The variety of utilities of titania-based hybrid materials is emphasized.

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Structure sensitive photocatalytic reduction of nitroarenes over TiO 2

Cited by 213 publications

References 67 publications

Effect of temperature on the physical, optical and photocatalytic properties of TiO2 nanoparticles

Effect of temperature on the physical, optical and photocatalytic properties of TiO2 nanoparticles

Oxygen insensitive thiol–ene photo-click chemistry for direct imprint lithography of oxides

Titania-Based Hybrid Materials with ZnO, ZrO2 and MoS2: A Review

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