One-step accelerated synthesis of conducting polymer/silver composites and their catalytic reduction of Cr(VI) ions and p-nitrophenol

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F23%3A00572185" target="_blank" >RIV/61389013:_____/23:00572185 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4360/15/10/2366" target="_blank" >https://www.mdpi.com/2073-4360/15/10/2366</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym15102366" target="_blank" >10.3390/polym15102366</a>

Result language

angličtina

Original language name

One-step accelerated synthesis of conducting polymer/silver composites and their catalytic reduction of Cr(VI) ions and p-nitrophenol

Original language description

In this paper, silver nitrate was used as an oxidant to prepare polyaniline, polypyrrole, and poly(3,4-ethylene dioxythiophene)/silver composites through a simultaneous oxidation/reduction process. In addition, p-phenylenediamine was added with 1 mole% relative to the concentrations of the monomers to accelerate the polymerization reaction. The prepared conducting polymer/silver composites were characterized by scanning and transmission electron microscopies to study their morphologies, Fourier-transform infrared and Raman spectroscopies to confirm their molecular structures, and thermogravimetric analysis (TGA) to study their thermal stabilities. The silver content in the composites was estimated by energy-dispersive X-ray spectroscopy, ash analysis, and TGA. The conducting polymer/silver composites were utilized for the remediation of water pollutants through catalytic reduction. Hexavalent chromium ions (Cr(VI)) were photocatalytically reduced to trivalent chromium ions, and p-nitrophenol was catalytically reduced to p-aminophenol. The catalytic reduction reactions were found to follow the first-order kinetic model. Among the prepared composites, polyaniline/silver composite has shown the highest activity for the photocatalytic reduction of Cr(VI) ions with an apparent rate constant of 0.226 min–1 and efficiency of 100% within 20 min. Additionally, poly(3,4-ethylene dioxythiophene)/silver composite showed the highest catalytic activity towards the reduction of p-nitrophenol with an apparent rate constant of 0.445 min–1 and efficiency of 99.8% within 12 min.n

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10404 - Polymer science

Project

<a href="/en/project/GA21-01401S" target="_blank" >GA21-01401S: Innovative conducting polymer composites for water purification</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Polymers

ISSN

2073-4360

e-ISSN

2073-4360

Volume of the periodical

15

Issue of the periodical within the volume

10

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

2366

UT code for WoS article

000996593600001

EID of the result in the Scopus database

2-s2.0-85160644756