Development of alternative photocatalysts to TiO2: Challenges and opportunities

Hernández‐Alonso, María D.; Fresno, Fernando; Suárez, Silvia; Coronado, Juan M.

doi:10.1039/b907933e

Cited by 1,184 publications

(676 citation statements)

References 294 publications

(448 reference statements)

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“…S ince the discovery of water photolysis on a TiO 2 photoanode in the 1970s 1 , semiconductor photocatalysis has attracted significant attention due to its promising applications in environment remediation and solar energy conversion in the past decades [2][3][4][5] . TiO 2 is the initial semiconductor photocatalyst investigated and it is still regarded as a benchmark photocatalyst under ultravoilet irradiation due to its intrinsic high activity.…”

mentioning

confidence: 99%

Sub-10 nm rutile titanium dioxide nanoparticles for efficient visible-light-driven photocatalytic hydrogen production

et al. 2015

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mentioning

confidence: 99%

Sub-10 nm rutile titanium dioxide nanoparticles for efficient visible-light-driven photocatalytic hydrogen production

et al. 2015

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“…The surface roughness has been reported to have a negligible effect on the PC activity of single crystalline rutile TiO 2 [17]. According to Hernandez-Alonso et al [18] an increase in the surface area of the photocatalyst is accompanied by an increase in the probability of formation of lattice defects. This situation can however be avoided by synthesizing mono-dispersed nanoparticles that present an optimal diameter for which the benefits of small crystallite size supersedes the detrimental effects [18].…”

Section: Tio 2 Antifouling and Photocatalytic Activitymentioning

confidence: 99%

“…According to Hernandez-Alonso et al [18] an increase in the surface area of the photocatalyst is accompanied by an increase in the probability of formation of lattice defects. This situation can however be avoided by synthesizing mono-dispersed nanoparticles that present an optimal diameter for which the benefits of small crystallite size supersedes the detrimental effects [18]. The importance of the crystallite size can also be explained in terms of the surface area of the photocatalyst.…”

Section: Tio 2 Antifouling and Photocatalytic Activitymentioning

confidence: 99%

Titania‐based photocatalytic coatings on stainless steel hospital fixtures

Krumdieck

Lee³

et al. 2015

Phys. Status Solidi C

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A scaled-up pulsed-pressure MOCVD system was used to deposit TiO 2 coatings from tetra-isopropoxide precursor solution on stainless steel substrates and on 3-D objects. The objective of the work is the production of antimicrobial coatings for handles in health care facilities. Antimicrobial coatings are sought to manage the transmission of hospital acquired infections (HAI's), which are reported to cost around one million pounds per annum in the UK alone. Titania is a promising material for this application due to the photocatalytic production of reactive oxygen species that are crucial for the destruction of organic pathogens.TiO 2 coatings of 0.2 to 13 µm thickness were deposited at temperatures between 375 o C and 475 o C. The crystallite size and photocatalytic activity are influenced by deposition temperature. No dependence of stoichiometry on the deposition temperature has been observed. The films on stainless steel exhibit reasonably good photocatalytic performance. The photocatalytic performance and the stoichiometry improve with the film thickness. A three dimensional object (door handle) was coated with good conformity. The reactor scale-up for coating production on door handles is proposed for future wear and hygiene performance testing.

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“…It is known to be a very useful non-toxic, environmental friendly, and corrosionresistant material with unique ionic and electronic properties that enable its use in solar cells, photocatalytic reactions, and lithium-ion batteries [1][2][3][4]. Generally, the performance of these applications is mainly determined by a surface reaction/interaction and a charge transfer or separation.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Single Crystalline Titanium Oxide and Sodium Titanate Nanorods Via Salt-Assisted Ultrasonic Spray Pyrolysis

Hwangbo

Yoo

2017

Archives of Metallurgy and Materials

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The simple and continuous synthesis of single crystalline anatase titanium dioxide and sodium titanate nanorods by a saltassisted ultrasonic spray pyrolysis method is demonstrated. This method does not require expensive precursors, long reaction time, and physical templates or surfactant. In addition, its continuous nature makes it a suitable method for the large-scale preparation. Moreover, the effect of a salt concentration in a starting solution on material properties, including morphology and phase of the synthesized products was systematically investigated. The synthesized nanorods had one-dimensionality, a single crystalline and the average diameter of 12.3 nm with dual phases of titanium dioxide and sodium titanate by FE-SEM, XRD, HR-TEM as well as FFT-converted SAED pattern analysis.

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Development of alternative photocatalysts to TiO2: Challenges and opportunities

Cited by 1,184 publications

References 294 publications

Sub-10 nm rutile titanium dioxide nanoparticles for efficient visible-light-driven photocatalytic hydrogen production

Sub-10 nm rutile titanium dioxide nanoparticles for efficient visible-light-driven photocatalytic hydrogen production

Titania‐based photocatalytic coatings on stainless steel hospital fixtures

Synthesis of Single Crystalline Titanium Oxide and Sodium Titanate Nanorods Via Salt-Assisted Ultrasonic Spray Pyrolysis

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