Photocatalytic Activity of Nanocarbon‐TiO<sub>2</sub>Composites with Gold Nanoparticles for the Degradation of Water Pollutants

Pastrana‐Martínez, Luisa M.; Carabineiro, Sónia A.C.; Buijnsters, Josephus Gerardus; Figueiredo, José; Faria, Joaquim L.; Silva, Adrián M.T.

doi:10.1002/9781119041214.ch3

Cited by 3 publications

(2 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…NDs can also optimize the photocatalytic organic pollution degradation activity of TiO 2 [40][41][42]54,79,80]. TiO 2 /ND with 15 wt% of NDs prepared by liquid-phase deposition method showed better photocatalytic degradation diphenhydramine ability under near-UV/Vis irradiation than the respective bare materials [80].…”

Section: Pollutants Degradationmentioning

confidence: 99%

Emerging applications of nanodiamonds in photocatalysis

Cao

Hao

et al. 2021

Functional Diamond

View full text Add to dashboard Cite

as a fascinating nanocarbon photocatalytic material, nanodiamonds (NDs) have attracted more and more attention recently due to their high chemical stability, high carrier mobility, narrowing band gap, easy surface modification, and mass production. this review summarizes the latest progress related to elaborated construction of NDs and NDs-based nanocomposite, including microstructure regulation of pristine NDs, elemental doping and formation a heterojunction by coupled with another semiconductor. the construction and properties of each category of NDs-based material are reviewed on their structure, preparation methods, texture control, and photocatalytic performance. Photocatalytic applications of NDs-based nanomaterials for hydrogen evolution from water splitting, organic pollution degradation, cO 2 reduction, N 2 reduction, graphene oxide reduction, and the latest advances in photocatalytic reaction mechanism have been also systematically reviewed. Finally, the challenges and prospects of the photocatalytic application of NDs are also briefly analyzed.

show abstract

Section: Pollutants Degradationmentioning

confidence: 99%

Emerging applications of nanodiamonds in photocatalysis

Cao

Hao

et al. 2021

Functional Diamond

View full text Add to dashboard Cite

show abstract

“…[5] [6] [7], photocatalytic applications [8] [9] [10] [11] and pollutant removers [12] [13] [14] [15] just to mention the most commonly found in the recent literature. From these applications viewpoints, the development of future nanocomposite requires the investigation of different elaboration pathway in order to promote synergetic effect between the nano compounds and to obtain a device cheaper and easier to be fabricated and handled.…”

mentioning

confidence: 99%

Boosted Photoactivity of Titania Nanotube Layers Doped with a Suspension of Gold Nanoparticles

Massard¹,

Pairis²,

Sibaud³

et al. 2017

ANP

View full text Add to dashboard Cite

In the present work, we report on the behavior of synthesized gold nanoparticles suspension, incorporated in titanium dioxide nanotube layers (TiO 2 -NT) and fabricated by electrochemical anodization in 0.4 wt% hydrofluoric acid solution and we study its photocatalytic response. Gold nanoparticles were characterized using Transmission electron microscopy and X-ray diffraction. Scanning electron microscopy was used to study the morphology of TiO 2 nanotube layers doped by gold nanoparticles. Boosted photocatalytic performances on the degradation of an azo dye were obtained by using TiO 2 nanotube layers doped by gold nanoparticles (Au/TiO 2 -NT), compared to undoped TiO 2 nanotube layer (TiO 2 -NT) catalysts. Under UV irradiation, this new nanomaterial, with noble metal-semi conductor heterojunction (Au/ TiO 2 -NT) exhibits a synergetic effect in accelerating the electron transfert, resulting in an enhanced photoactivity recorded in the kinetics of degradation of Acid Orange 7 (AO7). Chronoamperometry was used to highlight higher photocurrent produced by gold-titania interface submited to UV irradiation.

show abstract

Interdependence of Kinetics and Fluid Dynamics in the Design of Photocatalytic Membrane Reactors

et al. 2022

View full text Add to dashboard Cite

Photocatalytic membrane reactors (PMRs) are a promising technology for wastewater reclamation. The principles of PMRs are based on photocatalytic degradation and membrane rejection, the different processes occurring simultaneously. Coupled photocatalysis and membrane filtration has made PMRs suitable for application in the removal of emerging contaminants (ECs), such as diclofenac, carbamazepine, ibuprofen, lincomycin, diphenhydramine, rhodamine, and tamoxifen, from wastewater, while reducing the likelihood of byproducts being present in the permeate stream. The viability of PMRs depends on the hypotheses used during design and the kinetic properties of the systems. The choice of design models and the assumptions made in their application can have an impact on reactor design outcomes. A design’s resilience is due to the development of a mathematical model that links material and mass balances to various sub-models, including the fluid dynamic model, the radiation emission model, the radiation absorption model, and the kinetic model. Hence, this review addresses the discrepancies with traditional kinetic models, fluid flow dynamics, and radiation emission and absorption, all of which have an impact on upscaling and reactor design. Computational and analytical descriptions of how to develop a PMR system with high throughput, performance, and energy efficiency are provided. The potential solutions are classified according to the catalyst, fluid dynamics, thickness, geometry, and light source used. Two main PMR types are comprehensively described, and a discussion of various influential factors relating to PMRs was used as a premise for developing an ideal reactor. The aim of this work was to resolve potential divergences that occur during PMRs design as most real reactors do not conform to the idealized fluid dynamics. Lastly, the application of PMRs is evaluated, not only in relation to the removal of endocrine-disrupting compounds (EDCs) from wastewater, but also in dye, oil, heavy metals, and pesticide removal.

show abstract

Photocatalytic Activity of Nanocarbon‐TiO₂Composites with Gold Nanoparticles for the Degradation of Water Pollutants

Cited by 3 publications

References 69 publications

Emerging applications of nanodiamonds in photocatalysis

Emerging applications of nanodiamonds in photocatalysis

Boosted Photoactivity of Titania Nanotube Layers Doped with a Suspension of Gold Nanoparticles

Interdependence of Kinetics and Fluid Dynamics in the Design of Photocatalytic Membrane Reactors

Contact Info

Product

Resources

About

Photocatalytic Activity of Nanocarbon‐TiO2Composites with Gold Nanoparticles for the Degradation of Water Pollutants

Cited by 3 publications

References 69 publications

Emerging applications of nanodiamonds in photocatalysis

Emerging applications of nanodiamonds in photocatalysis

Boosted Photoactivity of Titania Nanotube Layers Doped with a Suspension of Gold Nanoparticles

Interdependence of Kinetics and Fluid Dynamics in the Design of Photocatalytic Membrane Reactors

Contact Info

Product

Resources

About

Photocatalytic Activity of Nanocarbon‐TiO₂Composites with Gold Nanoparticles for the Degradation of Water Pollutants