Superhydrophilic TiO2 thin film by nanometer scale surface roughness and dangling bonds

Bharti, Bandna; Kumar, Santosh; Kumar, Rajesh

doi:10.1016/j.apsusc.2015.12.108

Cited by 91 publications

(48 citation statements)

References 37 publications

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“…The absence of sharp peaks of TiO 2 in the XRD pattern of both samples confirms that TiO 2 is in amorphous form. 14,15 All the diffraction peaks observed in Au/TiO 2 NRAs match exactly with the standard data of fcc Au (JCPDS 01-1174). Amorphous TiO 2 is favourable in the proposed multisegmented nanostructure because: (1) the work function of amorphous TiO 2 is lower than that of its crystalline counterpart due to the large number of oxygen vacancies.…”

Section: Sem and Xrd Analysessupporting

confidence: 75%

Determination of Schottky barrier height and enhanced photoelectron generation in novel plasmonic immobilized multisegmented (Au/TiO₂) nanorod arrays (NRAs) suitable for solar energy conversion applications

et al. 2017

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Section: Sem and Xrd Analysessupporting

confidence: 75%

Determination of Schottky barrier height and enhanced photoelectron generation in novel plasmonic immobilized multisegmented (Au/TiO₂) nanorod arrays (NRAs) suitable for solar energy conversion applications

et al. 2017

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“…A common method is based on the deposition of photochemically active (photosensitive) materials. For example, TiO 2 ‐based superhydrophilic AF films have attracted great attention of scientists for years due to its attractive physical and chemical properties . Unfortunately, the AF behavior must be the photoinduced and cannot be kept for a long time in the absence of UV irradiation.…”

Section: Discussionmentioning

confidence: 99%

Flourishing Bioinspired Antifogging Materials with Superwettability: Progresses and Challenges

et al. 2018

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Antifogging (AF) structure materials found in nature have great potential for enabling novel and emerging products and technologies to facilitate the daily life of human societies, attracting enormous research interests owing to their potential applications in display devices, traffics, agricultural greenhouse, food packaging, solar products, and other fields. The outstanding performance of biological AF surfaces encourages the rapid development and wide application of new AF materials. In fact, AF properties are inextricably associated with their surface superwettability. Generally, the superwettability of AF materials depends on a combination of their surface geometrical structures and surface chemical compositions. To explore their general design principles, recent progresses in the investigation of bioinspired AF materials are summarized herein. Recent developments of the mechanism, fabrication, and applications of bioinspired AF materials with superwettability are also a focus. This includes information on constructing superwetting AF materials based on designing the topographical structure and regulating the surface chemical composition. Finally, the remaining challenges and promising breakthroughs in this field are also briefly discussed.

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“…As it is well known, a hydrophilic surface has a strong affinity to water, otherwise a hydrophobic surface always will try to repel water [47]. According some authors [45,[47][48][49][50], the surface nature correspond to specific WCA range values. A surface could be considered as superhydrophobic when its WCA is higher than 150°, hydrophobic when the WCA is among 90°and 150°, hydrophilic when the WCA is among 10°and 90°and the last one, superhydrophilic when the surface has a WCA < 10°.…”

Section: Roughness and Wettabilitymentioning

confidence: 99%

Surface functionalization of 3D printed structures: Aesthetic and antibiofouling properties

Castro

Carneiro

Marques

et al. 2020

Surface and Coatings Technology

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Additive manufacturing (AM) is a hot topic nowadays, having a first order in importance in research trends, improving existent technologies and carrying them further. AM can be applied to ceramics, which have importance in current technologies. Their capability to maintain functional properties for long time periods, combined with the easiness to process and the abundance of raw materials, make them a fundamental part of mankind development. Within ceramics, stoneware has a wide range of uses but in some conditions, it can be affected by biofouling. Ti(O)N and Ag-Ti(O)N coatings over 3D printed stoneware, were presented as multifunctional solution, linking aesthetical and antimicrobial properties. Films were developed by reactive direct current (DC) magnetron sputtering and characterized physical, chemical and morphologically, as well as regarding their colour variation. Moreover roughness, wettability, antibacterial and antibiofouling were also evaluated. The results revealed that the Ag doped coatings (with or without oxygen addition) had an enhanced multifunctionality compared to control samples (without Ag). Ag nanoparticles addition created a surface with potential antibacterial and antibiofouling activities, in order to resist outdoors and aqueous environments, making these films able to be applied in architectural pieces as sculptures or other decorative parts, maintaining their properties with good aesthetical properties. implants, soft tissue replacements, drug deliveries, among others [2]; aerospace industry, in reduced volume parts and replacements parts for aircraft with advanced materials as aluminium alloys, titanium alloys, nickel super-alloys and special steels; automotive industry, in the development of some structural and engine parts; and tooling industry, like moulds with complex refrigeration systems enabling better performances and higher life time, [3]. Additive manufacturing, namely with metals and polymers, is no longer the future, it is the unavoidable present, but the additive manufacture of ceramic materials is still far from the desired maturity. Abundance, easy manipulation, low cost, heat resistance and long life time span are the main characteristics of ceramics [4] and across human history, new technologies have enlarged its uses. Chemically, ceramics can be considered as compounds formed between metallic and non-metallic elements with predominant ionic bonding but having a

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Superhydrophilic TiO2 thin film by nanometer scale surface roughness and dangling bonds

Cited by 91 publications

References 37 publications

Determination of Schottky barrier height and enhanced photoelectron generation in novel plasmonic immobilized multisegmented (Au/TiO₂) nanorod arrays (NRAs) suitable for solar energy conversion applications

Determination of Schottky barrier height and enhanced photoelectron generation in novel plasmonic immobilized multisegmented (Au/TiO₂) nanorod arrays (NRAs) suitable for solar energy conversion applications

Flourishing Bioinspired Antifogging Materials with Superwettability: Progresses and Challenges

Surface functionalization of 3D printed structures: Aesthetic and antibiofouling properties

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Superhydrophilic TiO2 thin film by nanometer scale surface roughness and dangling bonds

Cited by 91 publications

References 37 publications

Determination of Schottky barrier height and enhanced photoelectron generation in novel plasmonic immobilized multisegmented (Au/TiO2) nanorod arrays (NRAs) suitable for solar energy conversion applications

Determination of Schottky barrier height and enhanced photoelectron generation in novel plasmonic immobilized multisegmented (Au/TiO2) nanorod arrays (NRAs) suitable for solar energy conversion applications

Flourishing Bioinspired Antifogging Materials with Superwettability: Progresses and Challenges

Surface functionalization of 3D printed structures: Aesthetic and antibiofouling properties

Contact Info

Product

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Determination of Schottky barrier height and enhanced photoelectron generation in novel plasmonic immobilized multisegmented (Au/TiO₂) nanorod arrays (NRAs) suitable for solar energy conversion applications

Determination of Schottky barrier height and enhanced photoelectron generation in novel plasmonic immobilized multisegmented (Au/TiO₂) nanorod arrays (NRAs) suitable for solar energy conversion applications