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Polymers
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MOF Containing Materials for Environmental Applications
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MOF Containing Materials for Environmental Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: closed (25 May 2022) | Viewed by 2297

Special Issue Editors

Dr. Hossam E. Emam

E-Mail Website
Guest Editor
Department of Pretreatment and Finishing of Cellulosic Fibers, Textile Research Division, National Research Centre, Giza, Egypt
Interests: cellulose; fibers/fabrics treatment; functional textiles; nanoparticles
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Hanan Basioni Ahmed

E-Mail Website
Guest Editor
Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Cairo 11795, Egypt
Interests: nanoscience and textile technology

Special Issue Information

Dear Colleagues,

The discharge of organic pollutants causes health problems to the local population. Organic pollutants could be classified to three categories: (i) hydrocarbons such as polycyclic aromatic hydrocarbons; (ii) oxygen, nitrogen and phosphorus compounds; or (iii) organometallic compounds. The major category is the hydrocarbons (especially aromatic polycyclic compounds, such like dye stuffs and commercial colorants) with chemical bonds, which are relatively stable bonds and have limited polarity. The high polarity of oxygen, nitrogen and phosphorus compounds resulted in their relatively high water soluble and poorly soluble in fats. Therefore, these compounds are less persistent in the environment, and have low accumulation/bioaccumulation. However, organometallic groups as organic components based on carbon combined with metal are the least common type. Removal or degradation of such organic pollutants are highly demanded in order to save the environment and human health. On the other hand, the most recent highly porous compounds are metal–organic frameworks (MOFs), which are mainly constructed from organic ligands (referred to as linkers) and metal clusters that serve as connecters. MOFs are especially characterized by their large surface area and ultrahigh porosity with pore sizes ranging from micro- to mesoporous, resulting in formidable adsorption performance. Therefore, the current Special Issue is interesting in collecting manuscripts covering the use of MOF-containing materials in environmental applications.

Prof. Dr. Hossam E. Emam
Prof. Dr. Hanan Basioni Ahmed
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. Polymers 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

  • Metal Organic Framework (MOF)
  • environmental application
  • organic-inorganic
  • hybrid composites
  • adsorption performance
  • porous functional materials
  • sustainable catalysis

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Published Papers (1 paper)

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Research

12 pages, 5044 KiB  
Article
Cu-THQ-EFG Composite for Highly Selective Electrochemical CO2 Reduction to Formate at Low Overpotentials
by Lisha Jia, Klaudia Wagner, Jamie Smyth, David Officer, Jun Chen and Pawel Wagner
Polymers 2022, 14(23), 5112; https://doi.org/10.3390/polym14235112 - 24 Nov 2022
Cited by 2 | Viewed by 1907
Abstract
Metal organic framework (MOFs) are promising materials for electrocatalysis. However, the active sites of bulk MOFs crystal normally cannot be fully utilized because of the slow reagent penetration of pores and blockage of active sites. Herein, we report a facile way to deposit [...] Read more.
Metal organic framework (MOFs) are promising materials for electrocatalysis. However, the active sites of bulk MOFs crystal normally cannot be fully utilized because of the slow reagent penetration of pores and blockage of active sites. Herein, we report a facile way to deposit copper-benzoquinoid (Cu-THQ) on the edge-functionalized graphene (EFG) which prevented material’s aggregation. EFG used as a substrate provides higher electrical conductivity and stability in water than previously utilized graphene oxide (GO). Besides, the plate-like morphology of EFG proved to be more beneficial to support the MOF, because of the functional groups on its edge regions and much lower resistance compared to the sheet GO. Therefore, EFG can boost the resultant material’s catalytic activity for CO2 electroreduction (CO2RR). Furthermore, Cu-THQ exhibits high selectivity for formate formation in CO2RR. Representing as the only CO2 reduced liquid product, formate can be separated from gaseous products and further extracted from the electrolyte for practical use. The electrocatalytic results of Cu-THQ-EFG indicate the composite exhibits a higher current density of −3 mA/cm2 and faradaic efficiency of −0.25 V vs. RHE, corresponding to 50 mV of overpotential. Moreover, it features a less negative on-set potential of −0.22 V vs. RHE, which is close to the equilibrium potential of CO2RR (−0.2 V vs. RHE) and is 0.16 V more positive than the on-set potential of Cu-THQ-GO (−0.38 V vs. RHE). Full article
(This article belongs to the Special Issue MOF Containing Materials for Environmental Applications)
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