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Effect of polyurethane structure on arsenic adsorption capacity in nanofibrous polymer/ferrous sulphate-based systems

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26610%2F22%3APU145601" target="_blank" >RIV/00216305:26610/22:PU145601 - isvavai.cz</a>

  • Alternative codes found

    RIV/70883521:28160/22:63558718 RIV/70883521:28610/22:63558718

  • Result on the web

    <a href="https://pubs.rsc.org/en/content/articlelanding/2022/EW/D2EW00566B" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2022/EW/D2EW00566B</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1039/d2ew00566b" target="_blank" >10.1039/d2ew00566b</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effect of polyurethane structure on arsenic adsorption capacity in nanofibrous polymer/ferrous sulphate-based systems

  • Original language description

    This study investigates the effect of the nanofibrous polymeric structure of an adsorptive material, modified with an immobilized inorganic sorbent based on ferrous sulphate, on the capacity of the material to remove arsenic from contaminated water. Nanofibrous materials were prepared by electrospinning from polyurethane types selected using a primary adsorption test. The functional groups and chemical composition (FTIR, EDX), morphology (SEM, porometry) and hydrophilicity (contact angles) of the prepared nanostructured materials were determined in order to assess the effect of composition and structure on the removal of arsenic. The process of arsenic removal was monitored by atomic absorption spectroscopy (AAS). It was found that certain samples of polyurethanes, particularly self-synthesized aromatic polyurethane of an ester type, PU918, could remove arsenic by complexation on nitrogen in their polymer chains. The greatest efficiency for arsenic removal was ca. 60% (initial c(As) = 150 mu g L-1). It was also found that adding even a small amount (1 wt%) of an inorganic adsorbent based on ferrous sulphate into the fibre mass of the nanofibrous structure would increase the efficiency up to 90% as a result of a chemical reaction between the additive and arsenic ions. The extent and rate of adsorption were described by kinetic and isotherm models. The adsorption process is well characterized by a pseudo-second-order kinetic model and both Freundlich and Langmuir isotherm models. High adsorption capacity and rate are the basis for the use of nanofibrous material in filters for arsenic separation.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10500 - Earth and related environmental sciences

Result continuities

  • Project

    <a href="/en/project/TJ02000269" target="_blank" >TJ02000269: Nanostructured filtration materials for elimination of arsenic in water</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Environmental Science: Water Research and Technology

  • ISSN

    2053-1400

  • e-ISSN

    2053-1419

  • Volume of the periodical

    8

  • Issue of the periodical within the volume

    10

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    19

  • Pages from-to

    1-19

  • UT code for WoS article

    000854650100001

  • EID of the result in the Scopus database

    2-s2.0-85140233751