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Advances in Nanomaterials for Catalysis, Electrochemistry and Environmental Applications
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Advances in Nanomaterials for Catalysis, Electrochemistry and Environmental Applications

A special issue of Molecules (ISSN 1420-3049).

Deadline for manuscript submissions: 31 May 2024 | Viewed by 1322

Special Issue Editors

Prof. Dr. Jianbo Jia

E-Mail Website
Guest Editor
School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
Interests: electrochemical sensors; biofilm; environmental; nanomaterials; wastewater; microbial mechanism; electrochemical catalysis
Prof. Dr. Yong Shao

E-Mail Website
Guest Editor
Key Laboratory of The Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China
Interests: biosensors; nucleic acids; recognition; natural ligands; structures; DNAzymes

Special Issue Information

Dear Colleague,

Our goal is to demonstrate how customized electrochemical approaches can contribute to the development of durable high-performance electrocatalysts. Moreover, the functionalization of nanomaterials provides an even higher analytical performance of sensors, which extends their application in environmental monitoring.

In this Special Issue, we invite new and important perspectives on nanoscience applications, namely nanomaterials, in catalysis, energy conversion, and energy conservation technologies. Novel physical and chemical properties of nanomaterials can be applied and engineered to meet advanced material requirements in the new generation of chemical and energy conversion devices, reactions, and products.

Based on the above considerations, submissions to this Special Issue are welcome in the form of original research papers, reviews, or communications that highlight promising recent research and novel trends in this field.

Prof. Dr. Jianbo Jia
Prof. Dr. Yong Shao
Guest Editors

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

  • electrochemical sensors
  • biofilm
  • environmental
  • nanomaterials
  • wastewater
  • microbial mechanism
  • electrochemical catalysis
  • biosensors

Published Papers (2 papers)

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Research

13 pages, 9466 KiB  
Article
ZnO-CeO2 Hollow Nanospheres for Selective Determination of Dopamine and Uric Acid
by Yaru Zhang, Xiaoxia Yan, Yifan Chen, Dongmei Deng, Haibo He, Yunyi Lei and Liqiang Luo
Molecules 2024, 29(8), 1786; https://doi.org/10.3390/molecules29081786 - 15 Apr 2024
Viewed by 390
Abstract
ZnO-CeO2 hollow nanospheres have been successfully synthesized via the hard templating method, in which CeO2 is used as the support skeleton to avoid ZnO agglomeration. The synthesized ZnO-CeO2 hollow nanospheres possess a large electrochemically active area and high electron transfer [...] Read more.
ZnO-CeO2 hollow nanospheres have been successfully synthesized via the hard templating method, in which CeO2 is used as the support skeleton to avoid ZnO agglomeration. The synthesized ZnO-CeO2 hollow nanospheres possess a large electrochemically active area and high electron transfer owing to the high specific surface area and synergistic effect of ZnO and CeO2. Due to the above advantages, the resulting ZnO-CeO2 hollow spheres display high sensitivities of 1122.86 μA mM−1 cm−2 and 908.53 μA mM−1 cm−2 under a neutral environment for the selective detection of dopamine and uric acid. The constructed electrochemical sensor shows excellent selectivity, stability and recovery for the selective analysis of dopamine and uric acid in actual samples. This study provides a valuable strategy for the synthesis of ZnO-CeO2 hollow nanospheres via the hard templating method as electrocatalysts for the selective detection of dopamine and uric acid. Full article
(This article belongs to the Special Issue Advances in Nanomaterials for Catalysis, Electrochemistry and Environmental Applications)
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13 pages, 2581 KiB  
Article
Surface Plasmon Resonance Enhanced Photoelectrochemical Sensing of Cysteine Based on Au Nanoparticle-Decorated ZnO@graphene Quantum Dots
by Jiaxin Liu, Fancheng Lin and Yan Wang
Molecules 2024, 29(5), 1002; https://doi.org/10.3390/molecules29051002 - 25 Feb 2024
Viewed by 731
Abstract
In this work, Au nanoparticle-decorated ZnO@graphene core–shell quantum dots (Au-ZnO@graphene QDs) were successfully prepared and firstly used to modify an ITO electrode for the construction of a novel photoelectrochemical biosensor (Au-ZnO@graphene QDs/ITO). Characterization of the prepared nanomaterials was conducted using transmission electron microscopy, [...] Read more.
In this work, Au nanoparticle-decorated ZnO@graphene core–shell quantum dots (Au-ZnO@graphene QDs) were successfully prepared and firstly used to modify an ITO electrode for the construction of a novel photoelectrochemical biosensor (Au-ZnO@graphene QDs/ITO). Characterization of the prepared nanomaterials was conducted using transmission electron microscopy, steady-state fluorescence spectroscopy and the X-ray diffraction method. The results indicated that the synthesized ternary nanomaterials displayed excellent photoelectrochemical performance, which was much better than that of ZnO@graphene QDs and pristine ZnO quantum dots. The graphene and ZnO quantum dots formed an effective interfacial electric field, enhancing photogenerated electron–hole pairs separation and leading to a remarkable improvement in the photoelectrochemical performance of ZnO@graphene QDs. The strong surface plasmon resonance effect achieved by directly attaching Au nanoparticles to ZnO@graphene QDs led to a notable increase in the photocurrent response through electrochemical field effect amplification. Based on the specifical recognition between cysteine and Au-ZnO@graphene QDs/ITO through the specificity of Au-S bonds, a light-driven photoelectrochemical sensor was fabricated for cysteine detection. The novel photoelectrochemical biosensor exhibited outstanding analytical capabilities in detecting cysteine with an extremely low detection limit of 8.9 nM and excellent selectivity. Hence, the Au-ZnO@graphene QDs is a promising candidate as a novel advanced photosensitive material in the field of photoelectrochemical biosensing. Full article
(This article belongs to the Special Issue Advances in Nanomaterials for Catalysis, Electrochemistry and Environmental Applications)
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