Corrigendum to “Influence of silver nanoparticles on titanium oxide and nitrogen doped titanium oxide thin films for sun light photocatalysis” [Appl. Surf. Sci. 436 (2018) 708––719]

Madhavi, V.; Kondaiah, P.; Raman, Karthik V.; Shaik, Habibuddin; Rao, G. Mohan

doi:10.1016/j.apsusc.2018.02.064

Cited by 10 publications

(14 citation statements)

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“…The dominant A 101 reflection from the TiO 2 :N coating evidences that the addition of N under these conditions prevents rutile formation and yields a nearly single-phase anatase film. This effect was reported in detail in a previous publication by some of the present authors [20] and other groups [27][28][29]. In the Cr co-doped monolithic film, the structure displays a strong mixed-phase character where the rutile content is significantly higher than in the pure TiO 2 film.…”

Section: Sample Characterizationsupporting

confidence: 81%

Phase Selectivity in Cr and N Co-Doped TiO2 Films by Modulated Sputter Growth and Post-Deposition Flash-Lamp-Annealing

et al. 2019

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In this paper, we report on the phase selectivity in Cr and N co-doped TiO 2 (TiO 2 :Cr,N) sputtered films by means of interface engineering. In particular, monolithic TiO 2 :Cr,N films produced by continuous growth conditions result in the formation of a mixed-phase oxide with dominant rutile character. On the contrary, modulated growth by starting with a single-phase anatase TiO 2 :N buffer layer, can be used to imprint the anatase structure to a subsequent TiO 2 :Cr,N layer. The robustness of the process with respect to the growth conditions has also been investigated, especially regarding the maximum Cr content (<5 at.%) for single-phase anatase formation. Furthermore, post-deposition flash-lamp-annealing (FLA) in modulated coatings was used to improve the as-grown anatase TiO 2 :Cr,N phase, as well as to induce dopant activation (N substitutional sites) and diffusion. In this way, Cr can be distributed through the whole film thickness from an initial modulated architecture while preserving the structural phase. Hence, the combination of interface engineering and millisecond-range-FLA opens new opportunities for tailoring the structure of TiO 2 -based functional materials.

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Section: Sample Characterizationsupporting

confidence: 81%

Phase Selectivity in Cr and N Co-Doped TiO2 Films by Modulated Sputter Growth and Post-Deposition Flash-Lamp-Annealing

et al. 2019

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“…The Ti 2p spectra consists of two peaks at 459.2 eV and 464.5 eV assigned to the Ti 2p3/2 and Ti 2p1/2. The obtained peaks for Ti 2p spectra are closely matching with previously reported TiO2 [23]. The O 1s peaks were deconvoluted into three individual sub-peaks.…”

Section: Introductionsupporting

confidence: 85%

“…The TiO 2 thin-films exhibit a strong diffraction peak at 2θ = 25.3 • irrespective of post-annealing temperature. The obtained GIXRD peak corresponds to the (101) plane of the anatase structure (JCPDS Card no: 89-4203) [23]. The average crystal grain size is estimated from the full width at half maximum (FWHM) of the (101) peak using Scherrer formula and found to be around 20 nm without major changes [24].…”

mentioning

confidence: 99%

Rapid and Scalable Wire-bar Strategy for Coating of TiO2 Thin-films: Effect of Post-Annealing Temperatures on Structures and Catalytic Dye-Degradation

et al. 2020

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Titanium dioxide (TiO 2 ) thin films were rapidly coated on Corning glass substrates from the precursor solution using the wire-bar technique at the room temperature and then post-annealed at 400, 500 and 600 • C for 1 h under atmospheric conditions. The structural, morphological, optical, wettability and photocatalytic properties of the films were studied. X-ray diffraction analysis confirmed the formation of an anatase TiO 2 structure irrespective of the post-annealing temperatures. The optical transparency of the films in the visible range was measured to be > 70%. A water contact angle (WCA) of~0 • was observed for TiO 2 thin-film, post-annealed at 400 • C and 500 • C. However, WCA of 40.3 • was observed for post-annealed at 600 • C. The photocatalytic dye-degradation using post-annealed thin-film was investigated indicating a steady improvement in the dye-degradation percentage (from 24.3 to 29.4%) with the increase of post-annealing temperature. The demonstrated TiO 2 thin-films deposited by wire-bar coating technique showed promises for the manufacturing of large-area cost-effective self-cleaning window glass.Molecules 2020, 25, 1683 2 of 13 sheeting water and the later by rolling water droplets that carries away dirt [8]. The superhydrophilic and superhydrophobic properties are attractive in self-cleaning applications and are commonly evaluated based on the water contact angles (WCAs) with the material/surface. WCAs of <5 • and >150 • are called superhydrophilic and superhydrophobic materials respectively [8]. The superhydrophilic material when employed on a substrate/surface leads to the formation of uniform thin layer of water upon contact and gradually carries away dust particles from the surface [9]. In contrast, hydrophobic surfaces accumulate small water droplets, leading to deterioration of transparency [7,9]. In the current context, TiO 2 thin layers are capable of photocatalytically degrading the organic pollutants present on glass and tiles and irregular shapes on solid surfaces when irradiated with UV light or sun light [8,9]. The decomposed organic pollutant or dirt can be washed away by sheeting water without the need of additional mechanical cleaning due to its superhydrophilic nature [7,8]. Recently, the scope of superhydrophilic and photocatalytic TiO 2 thin-films has been widened to air purification for the effective decomposition (and the subsequent removal) of nitrogen oxide (NO x ), formaldehyde, benzene and other volatile organic compounds (VOCs) [10][11][12]. The air purification processes convert toxic gases to harmless compounds like nitrate ions that are ultimately washed into the soil and help to fertilize plants [10]. The unique wettability and non-toxic properties of TiO 2 materials are also employed in biomedical applications where surface wettability can play an important role in protein adsorption, cell adhesion and proliferation [9]. Moreover, the antibacterial, self-cleaning, and anti-odour properties of TiO 2 films deposited on fibres, textile, cotton, etc. also allow thi...

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“…Titanium oxide (TiO 2 ) is an excellent semiconductor photocatalyst because of its high photocatalytic activity, good chemical stability, safety, nontoxicity, and low cost without secondary pollution [1][2][3]. In the past decades, TiO 2 as photocatalytic materials has become the important subject of attention by many researchers at home and abroad, in the water/air treatment [4], solar cell electrodes [5], water decomposition for hydrogen production [6], and other fields.…”

Section: Introductionmentioning

confidence: 99%

“…Nano-TiN powder (≥99.9%) with a particle size of 20 nm and density of 5.24 g/cm3 was purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.Tetraethoxysilane (TEOS), absolute ethanol (C 2 H 5 OH), hydrochloric acid (HCl), ammonia (NH 3 •H 2 O), and RhB were obtained from ScienceLab Instrument Inc., Guizhou. All the reagents were of analytical grade purity and used without further purification.…”

mentioning

confidence: 99%

Preparation of Highly Stable and Effective N-Doped TiO₂@SiO₂ Aerogel Catalyst for Degradation of Organic Pollutants by Visible Light Catalysis

Tang

Ran

Jie

et al. 2019

Journal of Chemistry

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To obtain high stable and effective TiO2 photocatalyst, nano-N-doped TiO2@SiO2 (TiO2−xNx@SiO2, 0 ≤ x ≤ 2) composite aerogels were synthesized by the sol-gel method combined with supercritical drying and direct oxidation process. The adsorption/photocatalytic degradation efficiency of TiO2−xNx@SiO2 aerogels was evaluated by the degradation of RhB in aqueous solution under visible light irradiation. The physiochemical properties of the aerogels were examined by XRD, FT-IR, TEM, SEM, TG/DTA, and BET methods. It was found that the specific surface areas of all TiO2−xNx@SiO2 samples exceeded 700 m2/g and exhibited a honeycomb porous structure with fine particulate morphology. Photocatalytic activity tests show that the 500-TiO2@SiO2 composite aerogel exhibits the best adsorption/photocatalytic degradation rate for RhB, which obtained about 80% of the degradation rate in 30 min under visible light and over 95% after 120 min. On the one hand, the SiO2 aerogels can significantly inhibit the phase transition of TiO2, and the nano TiO2 can be highly dispersed in the SiO2 aerogels; On the other hand, if the oxidation temperature is selected properly, the N-doped TiO2−xNx@SiO2 aerogel can be obtained by simple TiN@SiO2 aerogel oxidation.

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Corrigendum to “Influence of silver nanoparticles on titanium oxide and nitrogen doped titanium oxide thin films for sun light photocatalysis” [Appl. Surf. Sci. 436 (2018) 708––719]

Cited by 10 publications

References 0 publications

Phase Selectivity in Cr and N Co-Doped TiO2 Films by Modulated Sputter Growth and Post-Deposition Flash-Lamp-Annealing

Phase Selectivity in Cr and N Co-Doped TiO2 Films by Modulated Sputter Growth and Post-Deposition Flash-Lamp-Annealing

Rapid and Scalable Wire-bar Strategy for Coating of TiO2 Thin-films: Effect of Post-Annealing Temperatures on Structures and Catalytic Dye-Degradation

Preparation of Highly Stable and Effective N-Doped TiO₂@SiO₂ Aerogel Catalyst for Degradation of Organic Pollutants by Visible Light Catalysis

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Corrigendum to “Influence of silver nanoparticles on titanium oxide and nitrogen doped titanium oxide thin films for sun light photocatalysis” [Appl. Surf. Sci. 436 (2018) 708––719]

Cited by 10 publications

References 0 publications

Phase Selectivity in Cr and N Co-Doped TiO2 Films by Modulated Sputter Growth and Post-Deposition Flash-Lamp-Annealing

Phase Selectivity in Cr and N Co-Doped TiO2 Films by Modulated Sputter Growth and Post-Deposition Flash-Lamp-Annealing

Rapid and Scalable Wire-bar Strategy for Coating of TiO2 Thin-films: Effect of Post-Annealing Temperatures on Structures and Catalytic Dye-Degradation

Preparation of Highly Stable and Effective N-Doped TiO2@SiO2 Aerogel Catalyst for Degradation of Organic Pollutants by Visible Light Catalysis

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Preparation of Highly Stable and Effective N-Doped TiO₂@SiO₂ Aerogel Catalyst for Degradation of Organic Pollutants by Visible Light Catalysis