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Environment-Friendly Polymers and Polymer Composites

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

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 1724

Special Issue Editor


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Guest Editor
School of Chemistry and Environment, South China Normal University, Guangzhou, China
Interests: environment-friendly materials

Special Issue Information

Dear Colleagues,

Environmentally friendly materials refer to a class of materials that can be gradually absorbed by the environment under the action of light, water, or other conditions, which will cause molecular weight decline, physical properties, and other phenomena. They can also be called degradable materials.

Environmentally friendly materials are materials with excellent service performance from the collection, processing, use or recycling of raw materials, waste treatment, and even the whole life cycle of waste, with the least consumption of resources and energy, the least impact on the ecological environment, the highest recycling or decomposable properties, and safe treatment. They play a crucial role in reducing the waste of resources and energy, controlling pollution emissions, and protecting the environment.

Prof. Dr. Jiwen Luo
Guest Editor

Manuscript Submission Information

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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

  • water pollution control materials
  • air pollution control materials
  • environmentally adsorbed materials
  • environmental restoration materials
  • green energy materials

Published Papers (1 paper)

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Research

13 pages, 3267 KiB  
Article
Polyacrylonitrile/Aminated Polymeric Nanosphere Nanofibers as Efficient Adsorbents for Cr(VI) Removal
by Junwen Qi, Mengli Zeng, Zhigao Zhu, Yujun Zhou, Xiuyun Sun and Jiansheng Li
Molecules 2022, 27(20), 7133; https://doi.org/10.3390/molecules27207133 - 21 Oct 2022
Cited by 4 | Viewed by 1202
Abstract
In this work, polyacrylonitrile/aminated polymeric nanosphere (PAN/APN) nanofibers were prepared by electrospinning of monodispersed aminated polymeric nanospheres (APNs) for removal of Cr(VI) from aqueous solution. Characterization results showed that obtained PAN/APNs possessed nitrogen functionalization. Furthermore, the adsorption application results indicated that PAN/APN nanofibers [...] Read more.
In this work, polyacrylonitrile/aminated polymeric nanosphere (PAN/APN) nanofibers were prepared by electrospinning of monodispersed aminated polymeric nanospheres (APNs) for removal of Cr(VI) from aqueous solution. Characterization results showed that obtained PAN/APNs possessed nitrogen functionalization. Furthermore, the adsorption application results indicated that PAN/APN nanofibers exhibited a high adsorption capacity of 556 mg/g at 298 K for Cr(VI) removal. The kinetic data showed that the adsorption process fits the pseudo-second order. A thermodynamic study revealed that the adsorption of Cr(VI) was spontaneous and endothermic. The coexisting ions Na+, Ca2+, K+, Cl, NO3 and PO43− had little influence on Cr(VI) adsorption, while SO42− in solution dramatically decreased the removal performance. In the investigation of the removal mechanism, relative results indicated that the adsorption behavior possibly involved electrostatic adsorption, redox reaction and chelation. PAN/APN nanofibers can detoxify Cr(VI) to Cr(III) and subsequently chelate Cr(III) on its surface. The unique structure and nitrogen functionalization of PAN/APN nanofibers make them novel and prospective candidates in heavy metal removal. Full article
(This article belongs to the Special Issue Environment-Friendly Polymers and Polymer Composites)
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