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Molecules
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Nanomaterials for Degradation of Organic Pollutants
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Nanomaterials for Degradation of Organic Pollutants

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Photochemistry".

Deadline for manuscript submissions: closed (15 November 2021) | Viewed by 2098

Special Issue Editor

Prof. Dr. Qiang Gao

E-Mail Website
Guest Editor
Department of Chemistry, China University of Geosciences (Wuhan), Wuhan, China
Interests: catalytic degradation; novel nanocatalysts; oxidation processes

Special Issue Information

Dear Colleagues,

In the last few decades, many studies have demonstrated that nanoparticles represent a versatile system that is widely used throughout scientific research in numerous applications within a number of different fields. Nanoscale functional materials have been explored in terms of their excellent mechanical properties, electrical properties, magnetic properties, optical properties, sensitivity, catalysis, and photoactivity.

This Special Issue aims to collect recent progress and developments in the design and synthesis of highly functional, nanostructured photocatalysts with enhanced properties. Furthermore, the mechanisms of photocatalytic degradation of organic pollutants and the processing–structure–property relationships are of great interest to this Special Issue.

Prof. Dr. Qiang Gao
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. Molecules 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 2700 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

  • Nanomaterials
  • Nanocatalyst
  • Photocatalysis
  • Degradation
  • Waste treatment
  • TiO2 photocatalyst
  • Photo-Fenton reactions
  • Environmental remediation

Published Papers (1 paper)

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Research

21 pages, 13573 KiB  
Article
Rhodamine B Photodegradation in Aqueous Solutions Containing Nitrogen Doped TiO2 and Carbon Nanotubes Composites
by Adelina Udrescu, Stefania Florica, Madalina Chivu, Ionel Mercioniu, Elena Matei and Mihaela Baibarac
Molecules 2021, 26(23), 7237; https://doi.org/10.3390/molecules26237237 - 29 Nov 2021
Cited by 13 | Viewed by 1779
Abstract
In this work, new results concerning the potential of mixtures based on nitrogen doped titanium dioxide (TiO2:N) and carbon nanotubes (CNTs) as possible catalyst candidates for the rhodamine B (RhB) UV photodegradation are reported. The RhB photodegradation was evaluated by UV–VIS [...] Read more.
In this work, new results concerning the potential of mixtures based on nitrogen doped titanium dioxide (TiO2:N) and carbon nanotubes (CNTs) as possible catalyst candidates for the rhodamine B (RhB) UV photodegradation are reported. The RhB photodegradation was evaluated by UV–VIS absorption spectroscopy using samples of TiO2:N and CNTs of the type of single-walled carbon nanotubes (SWNTs), double-wall carbon nanotubes (DWNTs), multi-wall carbon nanotubes (MWNTs), and single-walled carbon nanotubes functionalized with carboxyl groups (SWNT-COOH) having various concentrations of CNTs. The best photocatalytic performance was obtained for sample containing TiO2:N and 2.5 wt.% SWNTs-COOH, when approx. 85% of dye removal was achieved after 300 min. of UV irradiation. The reaction kinetics of RhB aqueous solutions containing TiO2:N/CNT mixtures followed a complex first-order kinetic model. The TiO2:N/CNTs catalyst induced higher photodegradation efficiency of RhB than TiO2:N due to the presence of CNTs, which act as adsorbent and dispersing agent and capture the photogenerated electrons of TiO2:N hindering the electron–hole recombination. Full article
(This article belongs to the Special Issue Nanomaterials for Degradation of Organic Pollutants)
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