Nanostructured Catalysts in Energy Conversion and Environmental Applications

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 2660

Special Issue Editors

Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, 45141 Essen, Germany
Interests: metallic glasses; heterogeneous catalysts; nanostructured materials; advanced oxidation processes; laser synthesis and processing; water treatment; energy conversion
School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW 2052, Australia
Interests: metallic glasses; high entropy materials; heterogeneous catalysts; nanostructured materials; advanced oxidation processes; energy conversion
School of Engineering, Edith Cowan University, 270 Joondalup Drive, Perth, WA 6027, Australia
Interests: metal additive manufacturing; nanostructured materials; metallic biomaterials; heterogeneous catalysts; water treatment; advanced oxidation processes; metal corrosion; energy conversion
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Special Issue Information

Dear Colleagues,

Developing high-performance and reliable catalysts that are applicable in clean energy conversion and environmental protection has received significant interest in mainstream research, as witnessed by the increased numbers of publications in recent years. Nanostructured materials with their characteristic microstructures have generated notable attention in this field. Recent promising applied nanostructured catalysts have shown their outstanding catalytic behavior in advanced oxidation processes (AOPs), photocatalysis, water splitting, fuel cells, hydrogen storage and production, etc., presenting significant progress in our modern industrialization.

Designing novel nanostructured catalysts will attract extensive interests to further investigate their surface, structural and electronic features, and eventually to boost their catalytic performance. Such nanostructured catalysts are comprised of 1) materials with reduced dimensions (nanoscale) in the form of particles, thin wires, and thin films; 2) materials with nano-sized features on the surface structure; 3) bulk materials consisting of nanocrystallites in the microstructure; and 4) non-equilibrium materials with an amorphous or amorphous/crystalline composite microstructure.

This Special Issue intends to highlight the recent advances of nanostructured catalysts in catalyst design and synthesis, catalytic process modelling, material characterization, properties, applications, and new developments. Both research and review articles are welcome.

Dr. Shun-Xing Liang
Dr. Zhe Jia
Prof. Dr. Lai-Chang Zhang
Guest Editors

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Keywords

  • nanostructured materials
  • amorphous nanocatalysts
  • nanocomposites
  • heterogeneous catalysis
  • electrochemistry
  • advanced oxidation processes
  • wastewater treatment
  • surface treatment
  • green chemistry
  • sustainable processes

Published Papers (1 paper)

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Research

14 pages, 2052 KiB  
Article
Immobilization of Laccase on Hybrid Super-Structured Nanomaterials for the Decolorization of Phenolic Dyes
by Michaela Patila, Panagiotis E. Athanasiou, Lampros Kortessis, Georgia Potsi, Antonios Kouloumpis, Dimitrios Gournis and Haralambos Stamatis
Processes 2022, 10(2), 233; https://0-doi-org.brum.beds.ac.uk/10.3390/pr10020233 - 26 Jan 2022
Cited by 13 | Viewed by 2189
Abstract
In the present work, hybrid super-structured nanomaterials were synthesized by the combination of smectite nanoclays with various carbon-based nanomaterials (graphene oxide, carbon nanotubes and adamantylamine) and were used as nanosupports for the covalent and non-covalent immobilization of laccase from Trametes versicolor (TvL). TvL [...] Read more.
In the present work, hybrid super-structured nanomaterials were synthesized by the combination of smectite nanoclays with various carbon-based nanomaterials (graphene oxide, carbon nanotubes and adamantylamine) and were used as nanosupports for the covalent and non-covalent immobilization of laccase from Trametes versicolor (TvL). TvL was successfully immobilized on these hybrid nanomaterials, achieving high immobilization yields (up to 85%), while its conformation remained unaltered upon immobilization. The apparent kinetic constants Vmax and Km of the immobilized enzymes strongly depended on the immobilization procedure and the composition of hybrid nanomaterials. Immobilized TvL preserved up to 50% of its initial activity after 24 h of incubation at 60 °C, while free enzyme was totally deactivated. The TvL-hybrid nanomaterials bioconjugates were efficiently applied for the degradation of various synthetic dyes, exhibiting excellent decolorization capacity, as well as high reusability (up to 11 successive catalytic cycles), providing insights into the use of these bionanoconjugates on applications with environmental, and industrial interest. Full article
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