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Molecules
Special Issues
Supramolecular Transporters and Channels for Ion/Water Translocation
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Supramolecular Transporters and Channels for Ion/Water Translocation

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

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 1621

Special Issue Editors

Dr. Libo Huang

E-Mail Website
Guest Editor
School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
Interests: artificial water channels; biomimetic membranes; water treatment; self-assembly; COFs
Dr. Yuhao Li

E-Mail Website
Guest Editor
Physical and Life Sciences Directorate, Lawrence Livermore National Lab, 7000 East Ave, Livermore, CA 94550, USA
Interests: nanofluidics; carbon nanotube; membrane separation; self-assembly; ion transport
Prof. Dr. Zhongyi Jiang

grade E-Mail Website
Guest Editor
Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
Interests: membranes; biomimetic and bioinspired materials; COFs; separation; catalysis

Special Issue Information

Dear Colleagues,

Membrane transporters and channels widely exist in biological systems and have evolved to achieve their vital functions of exchanging substances and regulating cellular activity. As alternatives, in recent decades, supramolecular transporters and channels have been developed through the self-assembly of small functional molecules that have high transport activity and high selectivity. These transmembrane superstructures are constructed by employing a variety of reversible non-covalent interactions, such as hydrogen bonds, electrostatic interactions, halogen bonding, and van der Waals forces. Supramolecular artificial transporters and channels can be used not only to treat channelopathies, but also to understand the mechanism of their natural counterparts, paving the way for broad applications in biomimetic membranes, water treatment, biosensing, drug delivery, and nanotechnologies.

This Special Issue of Molecules will focus on recent innovative advances in supramolecular artificial transporters and channels for ion/water translocation. Topics are not limited to the abovementioned studies, but can cover all research areas concerning the substance exchange of supramolecular materials, including water treatment, drug delivery, protein delivery, and gas separation. Original research papers, communications, and review articles on any of these aspects are welcome.

Dr. Libo Huang
Dr. Yuhao Li
Prof. Dr. Zhongyi Jiang
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

  • supramolecular transporters and channels
  • artificial water/ion channels
  • ion transporters
  • transmembrane transport
  • biomimetic membranes
  • lipid bilayer
  • self-assembly

Published Papers (1 paper)

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Research

12 pages, 3081 KiB  
Article
Enhanced Photocatalytic Coupling of Benzylamine to N-Benzylidene Benzylamine over the Organic–Inorganic Composites F70-TiO2 Based on Fullerenes Derivatives and TiO2
by Yanmeng Guo, Hang Li, Bo Li, Shizhuo Su, Xin Zhong, Derui Kong, Yifan Chen and Yujie Song
Molecules 2023, 28(11), 4301; https://doi.org/10.3390/molecules28114301 - 24 May 2023
Cited by 1 | Viewed by 1067
Abstract
The organic–inorganic composites F70-TiO2, based on fullerene with carboxyl group derivatives and TiO2 semiconductor, have been designed and constructed to become an optical-functional photocatalyst via the facile sol–gel method. The composite photocatalyst obtained shows excellent photocatalytic activity for the high-efficiency [...] Read more.
The organic–inorganic composites F70-TiO2, based on fullerene with carboxyl group derivatives and TiO2 semiconductor, have been designed and constructed to become an optical-functional photocatalyst via the facile sol–gel method. The composite photocatalyst obtained shows excellent photocatalytic activity for the high-efficiency conversion of benzylamine (BA) to N-benzylidene benzylamine (NBBA) with air pressure at a normal temperature under visible light irradiation. By optimizing the composition, the composites with the 1:15 mass ratio of F70 and TiO2, denoted as F70-TiO2(1:15), demonstrated the highest reaction efficiency for benzylamine (>98% conversion) to N-benzylidene benzylamine (>93% selectivity) in this study. However, pure TiO2 and fullerene derivatives (F70) exhibit decreased conversion (56.3% and 89.7%, respectively) and selectivity (83.8% and 86.0%, respectively). The UV–vis diffuse reflectance spectra (DRS) and Mott–Schottky experiment’s results indicate that the introduction of fullerene derivatives into anatase TiO2 would greatly broaden the visible light response range and adjust the energy band positions of the composites, enhancing the sunlight utilization and promoting the photogenerated charge (e−-h+) separation and transfer. Specifically, a series of results on the in situ EPR tests and the photo-electrophysical experiment indicate that the separated charges from the hybrid could effectively activate benzylamine and O2 to accelerate the formation of active intermediates, and then couple with free BA molecules to form the desired production of N-BBA. The effective combination, on a molecular scale, between fullerene and titanium dioxide has provided a profound understanding of the photocatalysis mechanism. This work elaborates and makes clear the relationship between the structure and the performance of functional photocatalysts. Full article
(This article belongs to the Special Issue Supramolecular Transporters and Channels for Ion/Water Translocation)
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