Chapter Green Nanotechnology: Development of Nanomaterials for Environmental and Energy Applications

Fagan, Rachel; Cui, Han; Andersen, Joel; Pillai, Suresh C.; Falaras, Polycarpos; Byrne, John; Dunlop, P.S.M.; Choi, Hyeok; Jiang, Wenjun; Ο'Shea, Kevin Ε.; Dionysiou, Dionysios D.

doi:10.1021/bk-2013-1124.ch012

Cited by 28 publications

(14 citation statements)

References 167 publications

(153 reference statements)

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“…The sol-gel technique offers advantages to support metal catalysts, since the active metal and support can be prepared in a single step [31,32]. Recently, novel microwave-and ultrasound-assisted processing methods are also being reported [16,21,33,34].…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant

Hernández

Olvera-Rodriguez

Guzmán

et al. 2018

Electrochemistry Communications

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An Au-TiO 2 photoanode on carbon cloth has been synthesized by microwave-assisted sol-gel method to treat paracetamol solutions at pH 3.0 by photocatalysis (PC), electro-oxidation (EO), photoelectrocatalysis with UVA light (PEC), solar PEC (SPEC) and hybrid methods with photoelectro-Fenton under UVA (PEC + PEF) and sunlight (SPEC + SPEF) irradiation at constant anodic potential (E an). The photoanode has been characterized by XRD, Raman spectroscopy, HRTEM and SEM-EDS. The counter electrode was a 316L stainless steel plate, which was replaced by an air-diffusion electrode for H 2 O 2 generation in hybrid treatments. The most powerful process was SPEC + SPEF, yielding total paracetamol removal in <30 min and 24% mineralization after 180 min, at E an = +0.82 V. The paracetamol decay followed a pseudo-first-order kinetics in PEC. A lower rate constant was obtained upon increase of pharmaceutical concentration, showing good linear fit using a Langmuir-Hinshelwood model.

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Section: Introductionmentioning

confidence: 99%

Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant

Hernández

Olvera-Rodriguez

Guzmán

et al. 2018

Electrochemistry Communications

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“…Anatase displays a higher adsorptive affinity for organic compounds than rutile and also exhibits a lower rate of recombination due to a greater rate of hole trapping which makes it a superior photocatalyst [4]. Although it is generally accepted that anatase has greater photocatalytic activity than rutile a mixture of both phases is required for efficient photocatalysis [5]. Doping TiO 2 has been shows to increase the photocatalytic activity of materials [6].…”

Section: Introductionmentioning

confidence: 99%

A facile route to synthesis of S-doped TiO2 nanoparticles for photocatalytic activity

McManamon

O’Connell

Delaney

et al. 2015

Journal of Molecular Catalysis A: Chemical

108

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“…The screen-printed Rz label was tested on a number of different commercial photocatalytic samples, the details of which are given in Commercial photocatalytic self-cleaning materials are finding increasing usage throughout the world, with the market's total worth being projected at over $3 billion for 2020 [1]; the bulk of this use is in the form of architectural materials, such as self-cleaning: glass, paint, awning and concrete materials [2,3]. It follows that there is a real need for novel, accessible and economical testing methods for assessing the efficacies of such materials.…”

Section: Assessment Of Photocatalytic Surface Activitiesmentioning

confidence: 99%

Photocatalyst activity indicating adhesive labels for use in the field

Mills¹,

Hawthorne²,

Hazafy³

et al. 2018

Journal of Photochemistry and Photobiology A: Chemistry

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The preparation and characterisation of a resazurin-based photocatalyst activity indicator label is described. The label is applied to a number of different TiO2-based, photocatalytic materials, including self-cleaning: glass, tile, paint and awning materials, as well as a thin, sol-gel film, produced in-house. In all cases, the label exhibited a blue to pink colour transition upon irradiation with UV light. In most cases, the time taken to bleach 90% of the red component of the digital image of the ink, ttb(90), was twice that for a traditional Rz ink, produced by the drawdown method, since the former was twice as thick. Although not as fast as a drawdown Rz ink, by a factor of ca two, it still only takes minutes to change and the Rz label is much more easily used, stored and does not need the sample to be: very smooth, horizontal or flat. As such it appears ideal for testing samples, both quantitatively and qualitatively in situ, i.e. in the field.

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Chapter Green Nanotechnology: Development of Nanomaterials for Environmental and Energy Applications

Cited by 28 publications

References 167 publications

Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant

Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant

A facile route to synthesis of S-doped TiO2 nanoparticles for photocatalytic activity

Photocatalyst activity indicating adhesive labels for use in the field

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