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Functional Design of Polymeric Materials and Composites under Extreme Conditions

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Polymeric Materials".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 3155

Special Issue Editors

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
Interests: biomolecules/materials interactions; nanomaterial structural and functional design; implantable and wearable biomaterials; biosensors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Extreme conditions have already provided scientists with new opportunities and frontiers for scientific research. These conditions include but are not limited to extreme temperature, extreme humidity, extreme pressure, acidity, alkalinity, and extremely high electrical and magnetic fields. In the past decades, these extreme physical conditions significantly advanced the fundamental understanding of materials. For different application environments and material performances, there are increasingly specific design requirements.

In this case, the functional design of polymeric materials and composites is predominant for facing the specific extreme conditions and displaying required performances. Polymeric materials are already available for various advanced commercial, military, and aerospace applications, and they face an increasing number of different extreme environments. Their durability issues urgently need to be addressed. Establishment of the direct and indirect relationships between material structures and performances is also highly required.

This Special Issue aims to advance the fundamental understandings of polymeric materials under extreme conditions and exhibit progressive technologies. We encourage the submission of papers in which the connections of material structures and functions are investigated and highlighted. By combining the required performance and advanced methods, the research level will be enhanced with firm steps. Moreover, machine learning trials under these extreme conditions are welcomed in order to broaden the related knowledge.

Prof. Dr. Zhiqiang Su
Dr. Xiaoyuan Zhang
Guest Editors

Manuscript Submission Information

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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

  • functional polymeric materials
  • extreme physical conditions
  • structure–performance relationships
  • extreme temperature, humidity, pressure
  • high electrical and magnetic fields
  • solar radiation and environmental aging
  • acidity and alkalinity
  • technology advances
  • machine learning

Published Papers (2 papers)

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Research

13 pages, 6676 KiB  
Article
Integration of Carbon Dots on Nanoflower Structured ZnCdS as a Cocatalyst for Photocatalytic Degradation
by Jie Zhou, Xin Zhao, Haoming Xu, Zhichao Wang, Xiaoyuan Zhang and Zhiqiang Su
Materials 2023, 16(1), 366; https://0-doi-org.brum.beds.ac.uk/10.3390/ma16010366 - 30 Dec 2022
Viewed by 1356
Abstract
The application of catalysts is one of the most effective methods in the oil refining, chemical, medical, environmental protection, and other industries. In this work, carbon dots (CDs) were selected as an initiator and doped into the main catalyst, Zn0.2Cd0.8 [...] Read more.
The application of catalysts is one of the most effective methods in the oil refining, chemical, medical, environmental protection, and other industries. In this work, carbon dots (CDs) were selected as an initiator and doped into the main catalyst, Zn0.2Cd0.8S, and a novel Zn0.2Cd0.8S@CD composite catalyst with a nanoflower structure was successfully obtained. The synthesized composites (Zn0.2Cd0.8S@CDs) were characterized by means of SEM, TEM, XRD, FT-IR, XPS, and UV-Vis DRS. Transient photocurrent response and Nyquist curve analysis further proved that the carrier separation efficiency of the composite catalyst was significantly improved. In addition, the photocatalytic activity of Zn0.2Cd0.8S@CDs for rhodamine B removal from aqueous solution was tested under visible-light irradiation. When the amount of Zn0.2Cd0.8S@CDs composite catalyst reached 50 mg, the degradation rate of rhodamine B was 79.35%. Finally, the photocatalytic degradation mechanism of the Zn0.2Cd0.8S@CDs complex was studied. CD doping enhances the adsorption capacity of Zn0.2Cd0.8S@CDs composite catalysts due to the increase in surface area, effectively inducing charge delocalization and enhancing the photocatalytic capacity. Zn0.2Cd0.8S@CDs composites with low cost and high carrier separation efficiency have broad application prospects in the photocatalytic degradation of dyes. Full article
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12 pages, 2457 KiB  
Article
Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of Dopamine
by Zhichao Wang, Bianying Wen, Jie Zhou, Xin Zhao, Xiaoyuan Zhang and Zhiqiang Su
Materials 2022, 15(21), 7683; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15217683 - 01 Nov 2022
Cited by 2 | Viewed by 1796
Abstract
Dopamine (DA) plays the role of the transmitter of information in the brain. Neurological diseases and depression are in close relationship with DA release. In this study, we developed a co-catalyst Zn0.2Cd0.8S@zeolitic imidazolate framework-67 (Zn0.2Cd0.8S@ZIF-67) [...] Read more.
Dopamine (DA) plays the role of the transmitter of information in the brain. Neurological diseases and depression are in close relationship with DA release. In this study, we developed a co-catalyst Zn0.2Cd0.8S@zeolitic imidazolate framework-67 (Zn0.2Cd0.8S@ZIF-67) to improve the photocatalyst efficacy of Rhodamine B (RhB) and electrochemical sensing of DA. Results show that Zn0.2Cd0.8S@ZIF-67 exhibits optimal photocatalytic activity with the addition of 80 mg ZIF-67. The degradation percentage of RhB by Zn0.2Cd0.8S@ZIF-67 reached 98.40% when the co-catalyst was 50 mg. Radical trapping experiments show that ·O2 played a significant role in the photocatalytic degradation of RhB. The catalytic mechanism of the Zn0.2Cd0.8S@ZIF-67 was found as a Z-type photocatalysis. Finally, a DA biosensor was constructed and displayed a high response and selectivity to DA. This can be attributed to the heterojunction between Zn0.2Cd0.8S and ZIF-67, which can significantly enhance the separation of e/h+ and improve charge transfer. These findings will play a positive role in the in-situ monitoring of neurological diseases and depression. Full article
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