Special Issue "Graphene-Semiconductor Composites: Preparation and Applications"

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: closed (31 March 2021).

Special Issue Editor

Dr. Luisa Pastrana-Martínez
E-Mail Website
Guest Editor
Department of Inorganic Chemistry, University of Granada, Granada, Spain
Interests: doped carbon materials; graphene derivatives; adsorption and advanced oxidation technologies (heterogeneous photocatalysis, photo-Fenton, ozonation) for water treatment; CO2 photocatalytic conversion; oxygen reduction reaction
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Special Issue Information

Dear Colleagues,

Because of the unique structure and excellent properties of graphene derivatives (such as graphene oxide (GO) or reduced graphene oxide (rGO)), the coupling of graphene with semiconductor materials presents the possibility to design and fabricate novel graphene-based materials. These composites have attracted extensive attention for their potential in environmental and energy applications. The Special Issue will be devoted to new developments and fundamental advances on graphene–semiconductor composites with tuned textural and surface chemical properties, and their applications in the photodegradation of organic pollutants, photocatalytic splitting of H2O, and photocatalytic reduction of CO2, as well as carbon electrodes for energy production and storage, among others.

It is our pleasure to invite you to submit a manuscript for this Special Issue. Full papers, short communications, and reviews are welcome.

Dr. Luisa M. Pastrana-Martínez
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Heteroatom-doped graphene
  • graphene derivatives
  • semiconductor
  • photocatalysis
  • electrocatalysis
  • fuels and chemicals
  • environmental catalysis

Published Papers (1 paper)

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Research

Article
Functionalized Graphene Derivatives and TiO2 for High Visible Light Photodegradation of Azo Dyes
Nanomaterials 2020, 10(6), 1106; https://doi.org/10.3390/nano10061106 - 03 Jun 2020
Cited by 3 | Viewed by 981
Abstract
Functionalized graphene derivatives including graphene oxide (GO), reduced graphene oxide (rGO), and heteroatom (nitrogen/sulphur (N/S) or boron (B))-doped graphene were used to synthesize composites with TiO2 (T). The photocatalytic performance of composites was assessed for the degradation of Orange G dye (OG) [...] Read more.
Functionalized graphene derivatives including graphene oxide (GO), reduced graphene oxide (rGO), and heteroatom (nitrogen/sulphur (N/S) or boron (B))-doped graphene were used to synthesize composites with TiO2 (T). The photocatalytic performance of composites was assessed for the degradation of Orange G dye (OG) under simulated solar light. All the prepared graphene derivatives—TiO2 composites showed better photocatalytic performance than bare TiO2. A higher photocatalytic activity was found for the composites containing GO and N/S co-doped rGO (kapp = 109.2 × 10−3 and 48.4 × 10−3 min−1, for GO-T and rGONS-T, respectively). The influence of both initial solution pH and the reactive species involved in the OG degradation pathway were studied. The photocatalytic activity of the samples decreased with the increase of the initial pH (from 3.0 to 10.0) due to the occurrence of electrostatic repulsive forces between the photocatalysts surface and the molecules of OG, both negatively charged. The use of selective scavengers showed that although the photogenerated holes dominate the degradation mechanism, radicals and singlet oxygen also participate in the OG degradation pathway. In addition, reutilization experiments indicated that the samples were stable under the reaction conditions used. Full article
(This article belongs to the Special Issue Graphene-Semiconductor Composites: Preparation and Applications)
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