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Nanomaterials Processed via Plasma Techniques

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 1986

Special Issue Editor


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Guest Editor
Faculty of Science, Masaryk University, Brno, Czech Republic
Interests: plasma science; nanoscience; surface modifications; surface analysis

Special Issue Information

Dear Colleagues,

I invite you to participate (as a contributor or as a reader) in this Special Issue devoted to the processing of nanomaterials by plasmas. At present, the applications of nanomaterials spread to almost every possible field of research and industry, from the construction or food industries to high-tech biomolecular applications. Plasmas have shown their high flexibility to generate or modify materials, from fast and easy-to-handle ones operated at atmospheric pressure to costly low-pressure ones that can provide precise process control. Originating from material science and physics, the field has thus become very multidisciplinary, and it has been put to practice in a range of projects, from broad to narrow-profile.

Manuscripts are expected to show recent experimental advances, representing an original or unusual approach or methodology. There are no preferences in terms of materials, discharge type, or application. Moreover, manuscripts showing new or relatively narrow applications are highly appreciated.

The topics include:

  • Plasma sources for nanomaterial processing;
  • Generation of nanomaterials using electrical discharges;
  • Controlled modification of nanomaterials (chemical composition, shape, activity) by plasmas;
  • Research methodology related to an application that can be translated into another area.

Manuscripts written as short reviews are also accepted, though they should clearly show the contribution of the researchers.

Dr. Vadym Prysiazhnyi
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 submissions that pass pre-check are 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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • plasma sources
  • nanomaterials
  • surface modification
  • surface treatments
  • controlled modification

Published Papers (1 paper)

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Research

17 pages, 4230 KiB  
Article
Concurrent Synthesis and Immobilization of Ag Nanoparticles over TiO2 via Plasma Reduction for Photocatalytic Treatment of Methyl Blue in Water
by Noor Ul Huda Altaf, Muhammad Yasin Naz, Shazia Shukrullah, Abdul Ghaffar, Muhammad Irfan, Dominik Walczak, Adam Głowacz, Mater H. Mahnashi, Saifur Rahman, Grzegorz Królczyk, Ali O. Alqarni and Usama Muhammad Niazi
Materials 2021, 14(20), 6082; https://doi.org/10.3390/ma14206082 - 14 Oct 2021
Cited by 7 | Viewed by 1680
Abstract
Pure TiO2 nanoparticles (TiO2NPs) were produced via the sol–gel method and then coated with silver nanoparticles (AgNPs) to reduce their optical band gap. The concurrent synthesis and immobilization of AgNPs over TiO2NPs was achieved through the interaction of [...] Read more.
Pure TiO2 nanoparticles (TiO2NPs) were produced via the sol–gel method and then coated with silver nanoparticles (AgNPs) to reduce their optical band gap. The concurrent synthesis and immobilization of AgNPs over TiO2NPs was achieved through the interaction of an open-air argon plasma jet with a solution of silver nitrate/stabilizer/TiO2NPs. The one-pot plasma synthesis and coating of AgNPs over TiO2NPs is a more straightforward and environmentally friendly method than others. The plasma-produced Ag/TiO2 nanocomposites were characterized and tested for their photocatalytic potential by degrading different concentrations of methyl blue (MB) in water. The dye concentration, oxidant dose, catalyst dose, and reaction time were also optimized for MB degradation. XRD results revealed the formation of pure AgNPs, pure TiO2NPs, and Ag/TiO2 nanocomposites with an average grain size of 12.36 nm, 18.09 nm, and 15.66 nm, respectively. The immobilization of AgNPs over TiO2NPs was also checked by producing SEM and TEM images. The band gap of AgNPs, TiO2NPs, and Ag/TiO2 nanoparticles was measured about 2.58 eV, 3.36 eV, and 2.86 eV, respectively. The ultraviolet (UV) results of the nanocomposites were supportive of the degradation of synthetic dyes in the visible light spectrum. The AgNPs in the composite not only lowered the band gap but also obstructed the electron–hole recombinations. The Ag/TiO2 composite catalyst showed 90.9% degradation efficiency with a 5 ppm dye concentration after 120 min of light exposure. Full article
(This article belongs to the Special Issue Nanomaterials Processed via Plasma Techniques)
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