Photocatalysis by zinc oxide-based nanomaterials

Kumar, Naveen; Yadav, Sushma; Mittal, Anuj; Kumari, Kavitha

doi:10.1016/b978-0-12-818900-9.00005-x

Cited by 11 publications

(2 citation statements)

References 302 publications

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“…The control of the band gap is not the best situation either. This problem is especially relevant for photocatalytic applications [9,10] where it is necessary to shift the band gap into the visible light region. For w-ZnO, there are only minor successes in controlling Eg over a rather narrow range.…”

Section: Introductionmentioning

confidence: 99%

ZnO under Pressure: From Nanoparticles to Single Crystals

2022

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In the present review, new approaches for the stabilization of metastable phases of zinc oxide and the growth of ZnO single crystals under high pressures and high temperatures are considered. The problems of the stabilization of the cubic modification of ZnO as well as solid solutions on its basis are discussed. A thermodynamic approach to the description of zinc oxide melting at high pressures is described which opens up new possibilities for the growth of both undoped and doped (for example, with elements of group V) single crystals of zinc oxide. The possibilities of using high pressure to vary phase and elemental composition in order to create ZnO-based materials are demonstrated.

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Section: Introductionmentioning

confidence: 99%

ZnO under Pressure: From Nanoparticles to Single Crystals

2022

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“…TiO 2 has the ability of heterogeneous photocatalysis, whereby TiO 2 in the solid state reacts with media which are in either the liquid or the gas state (Kumar et al, 2021;Yasmina et al, 2014) and therefore can have self-cleaning capabilities (Garlisi & Palmisano, 2017;Imran et al, 2015;Nam et al, 2019;Panutumrong et al, 2015;Syafiq et al, 2018;Yasmina et al, 2014). Jang et al (2001) studied the photocatalytic properties of TiO 2 nanoparticles using methylene blue dye and found that the photocatalytic ability was inversely proportional to NM size and directly proportional to anatase fraction of a mixed phase sample.…”

Section: Introductionmentioning

confidence: 99%

Developing Self-Cleaning Photocatalytic TiO2 Nanocomposite Coatings

Mallia

Anastasi

Briffa

2023

International Journal of Surface Engineering and Interdisciplinary Materials Science

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Photocatalytic coatings with self-cleaning properties are becoming increasingly more popular due to the increased awareness of the importance of cleaning and the associated high cost of cleaning supplies and services. This research investigated self-cleaning photocatalytic polydimethylsiloxane (PDMS)/titanium dioxide (TiO2) nanocomposite coatings and focused on selecting the optimal TiO2 phase and concentration. To date, the comparison of the different TiO2 phases as a nanocomposite coating has not been sufficiently considered. PDMS/TiO2 nanocomposite coatings with three nanomaterial (NM) samples (an anatase, rutile, and mixed phase) and three concentrations of TiO2 (0.6, 1 and 3 w/v%) were prepared, applied to glass slides by dip coating, and tested with respect to hydrophobicity, surface stability, antifogging, and photocatalytic properties. It was found that a stable hydrophobic coating with the optimal photocatalyitc performance was produced with 3 w/v% anatase TiO2.

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