Enhanced catalytic performance of graphene-TiO2 nanocomposites for synergetic degradation of fluoroquinolone antibiotic in pulsed discharge plasma system

Guo, He; Jiang, Nan; Wang, Huijuan; Shang, Kefeng; Lü, Na; Li, Jie; Wu, Yan

doi:10.1016/j.apcatb.2019.01.052

Cited by 216 publications

(65 citation statements)

References 69 publications

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“…TiO 2 is an important semiconducting material due to its chemical inertness, non-toxicity, low cost, excellent chemical/thermal stability, high UV absorption, and strong antibacterial activity against a large variety of microorganisms [73][74][75]. A few works have been recently reported on the photocatalytic antibacterial properties of GO and rGO nanocomposites incorporating TiO 2 [76][77][78][79], which provide a green and effective method for the inactivation of various microorganisms by generating ROS. The photocatalytic activity of TiO 2 improves after coupling with G derivatives, attributed to the remarkable electron conductivity of the carbon nanomaterial that provides a 2D network reservoir to accept as well as shuttle photogenerated electrons from the semiconductor, which results in the separation and prolonged lifetime of hole-electron pairs [80].…”

Section: Nanocomposites With Titanium Oxide Nanoparticlesmentioning

confidence: 99%

“…In general, studies indicate higher activity of rGO-TiO 2 against Gram-positive bacteria compared to Gram-negative ones. rGO-TiO 2 nanocomposites have also been developed for the synergetic degradation of fluoroquinolone in a pulse discharge plasma (PDP) system [79], and the highest removal efficiency (99.4%) was attained at 5 wt% rGO content, which was 23.7% higher than that for TiO 2 alone.…”

Section: Nanocomposites With Titanium Oxide Nanoparticlesmentioning

confidence: 99%

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Antibacterial Action of Nanoparticle Loaded Nanocomposites Based on Graphene and Its Derivatives: A Mini-Review

Díez‐Pascual

2020

IJMS

102

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Bacterial infections constitute a severe problem in various areas of everyday life, causing pain and death, and adding enormous costs to healthcare worldwide. Besides, they cause important concerns in other industries, such as cloth, food packaging, and biomedicine, among others. Despite the intensive efforts of academics and researchers, there is lack of a general solutions to restrict bacterial growth. Among the various approaches, the use of antibacterial nanomaterials is a very promising way to fight the microorganisms due to their high specific surface area and intrinsic or chemically incorporated antibacterial action. Graphene, a 2D carbon-based ultra-thin biocompatible nanomaterial with excellent mechanical, thermal, and electrical properties, and its derivatives, graphene oxide (GO) and reduced graphene oxide (rGO), are highly suitable candidates for restricting microbial infections. However, the mechanisms of antimicrobial action, their cytotoxicity, and other issues remain unclear. This mini-review provides select examples on the leading advances in the development of antimicrobial nanocomposites incorporating inorganic nanoparticles and graphene or its derivatives, with the aim of providing a better understanding of the antibacterial properties of graphene-based nanomaterials.

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Section: Nanocomposites With Titanium Oxide Nanoparticlesmentioning

confidence: 99%

Section: Nanocomposites With Titanium Oxide Nanoparticlesmentioning

confidence: 99%

Antibacterial Action of Nanoparticle Loaded Nanocomposites Based on Graphene and Its Derivatives: A Mini-Review

Díez‐Pascual

2020

IJMS

102

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“…This led to massive research focussed on graphene-TiO 2 composite materials for environmental applications [29] , [30] , [31] , [32] . However, the vast majority of the literature deals with photocatalytic water treatment [33] , [34] , [35] , [36] , as only few papers, in recent literature based on graphene-TiO 2 composites, are about the photocatalytic degradation of air pollutants. Those latter works deal or with the abatement of nitrogen oxide(s) [37] , or with the removal of organic compounds – like acetone [38] , or benzene [39] .…”

Section: Introductionmentioning

confidence: 99%

Graphene-TiO2 hybrids for photocatalytic aided removal of VOCs and nitrogen oxides from outdoor environment

Tobaldi

Dvoranová

Lajaunie

et al. 2021

Chemical Engineering Journal

124

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“…49,50 Previous studies have shown that rGO based semiconductor composites can promote the photocatalytic process due to the reduction of band gap and the decrease of accelerated electron transparency. 52 56 prepared a Cd 0.8 Zn 0.2 S Photocatalyst to realize high-efficiency, stable and lowcost solar hydrogen evolution. 52 56 prepared a Cd 0.8 Zn 0.2 S Photocatalyst to realize high-efficiency, stable and lowcost solar hydrogen evolution.…”

Section: Introductionmentioning

confidence: 99%

“…51 Therefore, significant efforts have been made for photocatalytic treatment technology based on rGO material. 52,53 For example, Liu et al 54 prepared a Y 2 SiO 5 : Pr 3+ , Li and Na 2 Nb x Ta 2x O 6 /(Au/RGO) composites for improving the activity of photocatalytic hydrogen production. Pan et al 55 prepared a PCN/rGO/Fe 2 O 3 ternary Z-scheme heterostructure with fast interface charge transfer for water splitting.…”

Section: Introductionmentioning

confidence: 99%

High photoresponse and fast carrier mobility: Two‐dimensional rGO‐AgBr/Ag composite based on Z‐scheme heterointerface with plasma for hydrogen evolution

Wang

et al. 2019

Int J Energy Res

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With the improvement of people's living standard, energy shortage is increasingly severe. Photocatalysis technology is one of the most effective means to solve this problem. Generally, poor visible-light response and fast combination of photo-induced carriers are the main limiting factors to traditional photocatalysts. Aiming at this problem, in this paper, AgBr was used as the photosensitizer to immobilize on the surface of reduced graphene oxide (rGO) for the complexation of Ag + ions and carboxyl groups of precursor graphene oxide (GO), then the two-dimensional rGO-AgBr/Ag composites (2D rGAA-α, α = 1, 2 and 3) were synthesized by solvothermal method. The structures, morphologies, chemical bonding states and photoelectrochemical properties of the samples were analyzed to study the samples, and the corresponding visible-light-driven (VLD) catalytic performances were studied by hydrogen evolution reaction (HER). Compared with pure rGO, the light absorption of rGAA-α was almost extended to full spectral range for the Zscheme heterointerface (rGO-AgBr) construction, and the separation of photo-induced carriers can be promoted effectively. The HER results showed that the average hydrogen evolution rate ( R p ) of rGAA-α was significantly increased, and the rGAA-2 catalyst presented the highest R p (72.71 μmol h -1 g -1 ). After six recycling experiments, the very faint activity decrease and unobvious structure change suggested the high photostability. Accordingly, the enhanced catalytic activity of rGAA-α catalysts was attributed to the formation of Z-scheme heterointerface and generation of Ag plasmas, so this study will provide a simple, effective and promising method for hydrogen energy development. FIGURE 9 VLD photocatalytic mechanism of rGAA-α photocatalyst for HER [Colour figure can be viewed at wileyonlinelibrary.com]

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Enhanced catalytic performance of graphene-TiO2 nanocomposites for synergetic degradation of fluoroquinolone antibiotic in pulsed discharge plasma system

Cited by 216 publications

References 69 publications

Antibacterial Action of Nanoparticle Loaded Nanocomposites Based on Graphene and Its Derivatives: A Mini-Review

Antibacterial Action of Nanoparticle Loaded Nanocomposites Based on Graphene and Its Derivatives: A Mini-Review

Graphene-TiO2 hybrids for photocatalytic aided removal of VOCs and nitrogen oxides from outdoor environment

High photoresponse and fast carrier mobility: Two‐dimensional rGO‐AgBr/Ag composite based on Z‐scheme heterointerface with plasma for hydrogen evolution

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