The effect of combined processes for advanced oxidation of organic dye using CVD TiO2 film photo-catalysts

Lee, H.; Park, S.H.; Kim, S.J.; Kim, B.H.; Yoon, Hyeon Jeong; Kim, J.S.; Jung, Sang Chul

doi:10.1016/j.porgcoat.2011.09.024

Cited by 21 publications

(7 citation statements)

References 20 publications

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“…Pyruvate and organic carbon were inserted into the carboy lid to speed up the enriched culture in CDC biofilm reactor [24][25][26]. CVD titanium dioxide coated on AlZr (5.25% Zr) 2 µm 316 L polished substrate [27] and fluoro-modified elastomeric polyurethane, followed by previous drag-reduction work [11], were also involved as two control groups for the analysis of biofilm-attachment mechanism and formula optimization.…”

Section: Preparation Of Bio-medium and Bioassaysmentioning

confidence: 99%

Preparation and Formula Analysis of Anti-Biofouling Titania–Polyurea Spray Coating with Nano/Micro-Structure

Luo

Guet

et al. 2019

Coatings

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This paper proposes the preparation and formula analysis of anti-biofouling Titania–polyurea (TiO2–SPUA) spray coating, which uses nano-scale antibacterial and photocatalytic agents, titanium dioxide, to construct regularly hydrophobic surface texture on the polyurea coating system. Through formulating analysis of anti-biofouling performance, it is found the causal factors include antibacterial TiO2, surface wettability and morphology in order of their importance. The most optimized formula group is able to obtain uniform surface textures, high contact angle (91.5°), low surface energy (32.5 mJ/m2), and strong hardness (74 A). Moreover, this newly fabricated coating can effectively prevent Pseudomonas aeruginosa and biofilm from enriching on the surface, and there is no toxins release from the coating itself, which makes it eco-friendly, even after long-time exposure. These studies provide insights to the relative importance of physiochemical properties of Titania–polyurea spray coatings for further use in marine, as well as bio medical engineering.

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Section: Preparation Of Bio-medium and Bioassaysmentioning

confidence: 99%

Preparation and Formula Analysis of Anti-Biofouling Titania–Polyurea Spray Coating with Nano/Micro-Structure

Luo

Guet

et al. 2019

Coatings

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“…The CVD is a synthesized method in which a thin film of material is fabricated by binding in the form of diffusion, as a result of reaction between the gas phases and the heated surface [20][21][22]. The CVD process provides good control of composition, microstructure, and thickness of the TiO2 film [23,24]. The application of the CVD method is due to several advantages, including uniform films, complex surface area, good homogeneity and high deposition rates [25].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of TiO2 thin films on different substrates by chemical vapor deposition method

Hong¹,

Ngoc²,

Viet³

et al. 2021

Vietnam j. catal. adsorp.

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TiO2 thin films were synthesized by using Chemical Vapor Deposition (CVD) method on different substrates, such as glass, aluminium foil , and ceramic. The samples had been characterized by microscopy analysis, SEM, and EDS. The results show that TiO2 thin films were successfully fabricated and TiO2 nanocrystals with size of 50-100 nm loaded uniformly on surface of different substrates. The photocatalytic activities of all samples were investigated in photo-degradation of methyl orange (MO) under UV light irradiation and was followed by the UV-Vis diffuse reflectance spectroscopy, showing that the conversion of methyl orange achieved the highest percentage of 91% with TiO2 thin film synthesized on the ceramic substrate over 270 minutes of reaction. The hypothetical mechanism explaining this observation is that the surface morphology of ceramic plays a major role in the augmentation of MO molecules adsorption onto the surface of material, thus, improves the dye degradation process.

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“…A variety of techniques have been used for the preparation of TiO 2 films including sputtering, 20 chemical vapor deposition, 21 physical vapor deposition, 22 and electron beam evaporation. 23 Among the many preparation techniques, the sol-gel method fulfills the requirements for nanostructured TiO 2 and has numerous advantages, including purity, homogeneity, and stoichiometry control.…”

Section: Introductionmentioning

confidence: 99%

Preparation and antimicrobial assay of ceramic brackets coated with TiO₂thin films

et al. 2016

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ObjectiveDifferent methods have been utilized to prevent enamel demineralization and other complications during orthodontic treatment. However, none of these methods can offer long-lasting and effective prevention of orthodontic complications or interventions after complications occur. Considering the photocatalytic effect of TiO2 on organic compounds, we hoped to synthesize a novel bracket with a TiO2 thin film to develop a photocatalytic antimicrobial effect.MethodsThe sol-gel dip coating method was used to prepare TiO2 thin films on ceramic bracket surfaces. Twenty groups of samples were composed according to the experimental parameters. Crystalline structure and surface morphology were characterized by X-ray diffraction and scanning electron microscopy, respectively; film thickness was examined with a surface ellipsometer. The photocatalytic properties under ultraviolet (UV) light irradiation were analyzed by evaluating the degradation ratio of methylene blue (MB) at a certain time. Antibacterial activities of selected thin films were also tested against Lactobacillus acidophilus and Candida albicans.ResultsFilms with 5 coating layers annealed at 700℃ showed the greatest photocatalytic activity in terms of MB decomposition under UV light irradiation. TiO2 thin films with 5 coating layers annealed at 700℃ exhibited the greatest antimicrobial activity under UV-A light irradiation.ConclusionsThese results provide promising guidance in prevention of demineralization by increasing antimicrobial activities of film coated brackets.

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The effect of combined processes for advanced oxidation of organic dye using CVD TiO2 film photo-catalysts

Cited by 21 publications

References 20 publications

Preparation and Formula Analysis of Anti-Biofouling Titania–Polyurea Spray Coating with Nano/Micro-Structure

Preparation and Formula Analysis of Anti-Biofouling Titania–Polyurea Spray Coating with Nano/Micro-Structure

Synthesis of TiO2 thin films on different substrates by chemical vapor deposition method

Preparation and antimicrobial assay of ceramic brackets coated with TiO₂thin films

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The effect of combined processes for advanced oxidation of organic dye using CVD TiO2 film photo-catalysts

Cited by 21 publications

References 20 publications

Preparation and Formula Analysis of Anti-Biofouling Titania–Polyurea Spray Coating with Nano/Micro-Structure

Preparation and Formula Analysis of Anti-Biofouling Titania–Polyurea Spray Coating with Nano/Micro-Structure

Synthesis of TiO2 thin films on different substrates by chemical vapor deposition method

Preparation and antimicrobial assay of ceramic brackets coated with TiO2thin films

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Product

Resources

About

Preparation and antimicrobial assay of ceramic brackets coated with TiO₂thin films