Graphene oxide sheets involved in vertically aligned zinc oxide nanowires for visible light photoinactivation of bacteria

Nourmohammadi, Amin; Rahighi, Reza; Akhavan, Omid; Moshfegh, A.Z.

doi:10.1016/j.jallcom.2014.05.195

Cited by 77 publications

(31 citation statements)

References 68 publications

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“…Due to the electron transparency of graphene [10,71,[159][160][161][162], thin layers of deposited GRM sheets might not be visible by Scanning Electron Microscope (SEM), particularly when high accelerating voltages are used; instead the underlying electrode structure may appear even in secondary electron images. Nevertheless, when low accelerating voltages (e.g.…”

Section: Conformabilitymentioning

confidence: 99%

Electrophoretic deposition of graphene-related materials: A review of the fundamentals

Diba

Fam

Boccaccını

et al. 2016

Progress in Materials Science

228

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The Electrophoretic Deposition (EPD) of graphene-related materials (GRM) is an attractive strategy for a wide range of applications. This review paper provides an overview of the fundamentals and specific technical aspects of this approach, highlighting its advantages and limitations. Since obtaining a stable dispersion of charged particles is a pre-requisite for successful EPD, the strategies for suspending GRM in different media are discussed, along with the resulting influence on the deposited film. Most importantly, the kinetics involved in the EPD of GRMs and the factors that cause deviation from linearity in Hamaker's Law are reviewed. Side reactions often influence both efficiency and the nature of the deposited material; examples include the reduction of graphene oxide (GO) and related materials, as well as the decomposition of the suspension medium at high potentials. The microstructural characteristics of GRM deposits, and their degree of reduction, strongly influence their performance in their intended function. These factors will also determine, to a large extent, the commercial potential of this technique for applications involving GRM, and are therefore discussed here.

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Section: Conformabilitymentioning

confidence: 99%

Electrophoretic deposition of graphene-related materials: A review of the fundamentals

Diba

Fam

Boccaccını

et al. 2016

Progress in Materials Science

228

View full text Add to dashboard Cite

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“…500 Moreover, composite graphene films mixed with nanoparticles such as CNTs, MoS 2 , and ZnO were achieved by the EPD method and found applicable for supercapacitors, dye sensitized solar cells, and antibacterial materials. 501 5.2.1.8. Langmuir−Blodgett Assembly.…”

Section: Vacuum-assisted Filtrationmentioning

confidence: 99%

Superstructured Assembly of Nanocarbons: Fullerenes, Nanotubes, and Graphene

et al. 2015

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quent reduction, 88,89 while graphene quantum dots were synthesized from C 60 molecules via the ruthenium-catalyzed cage-opening. 90 Reversely, the transformation of flat graphene sheets into fullerene cages was observed under high energy electron beam exposure; 91 meanwhile, rolling up graphene sheets into CNTs was achievable by means of ultrasonication, 92,93 electron beam irradiation, 94 or thermally induced self-intertwining. 95 By the way, graphene nanoscrolls with an open tubular structure, which are distinct from CNTs with sealed edges, have received growing concerns. Their characteristic open topology allows foreign molecules ready access into the massive interlayer galleries. 96,97 2.2. Principles of Nanocarbon Assembly Figure 2. (a) Polarized optical microscopic texture indicating the ordered mesomorphic domains of C 60 derivatives. (b) Illustration for the lamellar mesophase. Reprinted with permission from ref 128.

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“…The improved electron-hole separation efficiency by graphene can also lead to enhanced photocatalytic performances in biology, such as antibacterial, 10,16 antiviral, 11 anti-parasitical applications, 12 and photostimulation of stem cells 13,14 . Akhavan's group conducted extensive investigations on the bio-applications of graphene-based composite photocatalysts.…”

Section: Electron Transfer Mediatormentioning

confidence: 99%

“…Graphene, a two-dimensional sp 2 -carbon packed monolayer with exceptional mechanical, thermal, optical, and electrical properties, has been proved to be a promising material in material science and technology. 5 Graphene-based composite materials have evolved into myriad fields ranging from energy storage and conversion, 6 nanoelectronics, 7 optoelectronics, 8 sensors 9 to bio-applications [10][11][12][13][14][15][16] . In particular, recent years have witnessed the exploration of graphene-based photocatalysts research with improved solar-to-energy conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

Advances in graphene-based semiconductor photocatalysts for solar energy conversion: fundamentals and materials engineering

2015

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Graphene-based semiconductor photocatalysis has been regarded as a promising technology for solar energy storage and conversion. In this review, we summarized recent developments of graphene-based photocatalysts, including preparation of graphene-based photocatalysts, typical key advances in the understanding of graphene functions for photocatalytic activity enhancement and methodologies to regulate the electron transfer efficiency in graphene-based composite photocatalysts, by which we hope to offer enriched information to harvest the utmost fascinating properties of graphene as a platform to construct efficient graphene-based composite photocatalysts for solar-to-energy conversion.

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Graphene oxide sheets involved in vertically aligned zinc oxide nanowires for visible light photoinactivation of bacteria

Cited by 77 publications

References 68 publications

Electrophoretic deposition of graphene-related materials: A review of the fundamentals

Electrophoretic deposition of graphene-related materials: A review of the fundamentals

Superstructured Assembly of Nanocarbons: Fullerenes, Nanotubes, and Graphene

Advances in graphene-based semiconductor photocatalysts for solar energy conversion: fundamentals and materials engineering

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