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Catalytic Materials for Sustainable Development

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: closed (10 November 2021) | Viewed by 3362

Special Issue Editor

Special Issue Information

Dear Colleagues,

Sustainable development is a method of development that involves the reduction of the consumption of renewable and non-renewable resources. One way to achieve this is to use catalysts to increase the efficiency of chemical reactions. There are a lot of types of catalysts, depending on the application. There are the special catalysts for chemical synthesis, for air purification, and for oil processing. The recent interest is caused by photocatalysts, which are used, for example, for water and air purification. In this Special Issue, we are interested in widely understood catalysts that are used to help save the environment.   

It is my pleasure to invite you to submit original research papers within the scope of this Special Issue. Short communication and state-of-the-art reviews are also welcome.

Dr. Magdalena Janus
Guest Editor

Manuscript Submission Information

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Keywords

  • Photocatalysts
  • Catalysts in chemical synthesis
  • Catalysts for air purification
  • Car catalysts
  • Catalyst for oil processing

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Published Papers (1 paper)

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Research

12 pages, 6777 KiB  
Article
Enhancement of Photocatalytic Activity under Visible Light Irradiation via the AgI@TCNQ Core-Shell Structure
by Wanli Xie, Li Liu, Wenquan Cui and Weijia An
Materials 2019, 12(10), 1679; https://doi.org/10.3390/ma12101679 - 23 May 2019
Cited by 11 | Viewed by 2705
Abstract
In this paper, a AgI@TCNQ photocatalyst with a core-shell structure was reported. A two-dimensional TCNQ (7,7,8,8-Tetracyanoquinodimethane) nanosheet, with a π-π conjugate structure, was used as a shell layer to realize the flexible coating on the surface of AgI nanoparticles. These special core-shell structure [...] Read more.
In this paper, a AgI@TCNQ photocatalyst with a core-shell structure was reported. A two-dimensional TCNQ (7,7,8,8-Tetracyanoquinodimethane) nanosheet, with a π-π conjugate structure, was used as a shell layer to realize the flexible coating on the surface of AgI nanoparticles. These special core-shell structure composites solve the key problems of the small interface of the bulk composites and the lesser charge transfer paths, which could accelerate the migration of photogenerated carriers. Thus, the AgI@TCNQ photocatalysts showed the better photodegradation performance for the methylene blue (MB) solution, and the degradation rate of AgI@TCNQ (1 wt.%) composite was 1.8 times than AgI under irradiation. The reactive species trapping experiments demonstrated that ·O2, h+, and ·OH all participated in the MB degradation process. The photocatalytic mechanism of AgI@TCNQ composites could be rationally explained by considering the Z-scheme structure, resulting in a higher redox potential and more efficient separation of charge carriers. At the same time, the unique core-shell structure provides a larger contact area, expands the charge transport channel, and increases the surface active sites, which are beneficial for improving photocatalytic performance. Full article
(This article belongs to the Special Issue Catalytic Materials for Sustainable Development)
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