Aerogels of polypyrrole/tannic acid with nanofibrillated cellulose for the removal of hexavalent chromium ions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00587260" target="_blank" >RIV/61389013:_____/24:00587260 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2310-2861/10/7/415" target="_blank" >https://www.mdpi.com/2310-2861/10/7/415</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/gels10070415" target="_blank" >10.3390/gels10070415</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Aerogels of polypyrrole/tannic acid with nanofibrillated cellulose for the removal of hexavalent chromium ions

Popis výsledku v původním jazyce

The preparation of conducting polymer aerogels is an effective strategy to produce innovative materials with enhanced physicochemical properties. Herein, polypyrrole (PPy) aerogels were oxidatively prepared in the presence of tannic acid (TA) with different concentrations (2.5, 5, and 10% mole ratio to pyrrole monomer) under freezing conditions. Nanofibrillated cellulose (NFC) was added during the PPy/TA synthesis to enhance mechanical stability. The effect of TA concentration on the aerogels’ morphology, conductivity, thermal stability, and adsorption capacity was investigated. The conductivity of 9.6 ± 1.7 S cm−1 was achieved for PPy/TA prepared with 2.5% TA, which decreased to 0.07 ± 0.01 S cm−1 when 10% TA was used. PPy/TA aerogels have shown high efficacy in removing Cr(VI) ions from aqueous solutions. Adsorption experiments revealed that all the aerogels follow pseudo-second-order kinetics. PPy/TA prepared with NFC has a maximum adsorption capacity of 549.5 mg g−1.

Název v anglickém jazyce

Aerogels of polypyrrole/tannic acid with nanofibrillated cellulose for the removal of hexavalent chromium ions

Popis výsledku anglicky

The preparation of conducting polymer aerogels is an effective strategy to produce innovative materials with enhanced physicochemical properties. Herein, polypyrrole (PPy) aerogels were oxidatively prepared in the presence of tannic acid (TA) with different concentrations (2.5, 5, and 10% mole ratio to pyrrole monomer) under freezing conditions. Nanofibrillated cellulose (NFC) was added during the PPy/TA synthesis to enhance mechanical stability. The effect of TA concentration on the aerogels’ morphology, conductivity, thermal stability, and adsorption capacity was investigated. The conductivity of 9.6 ± 1.7 S cm−1 was achieved for PPy/TA prepared with 2.5% TA, which decreased to 0.07 ± 0.01 S cm−1 when 10% TA was used. PPy/TA aerogels have shown high efficacy in removing Cr(VI) ions from aqueous solutions. Adsorption experiments revealed that all the aerogels follow pseudo-second-order kinetics. PPy/TA prepared with NFC has a maximum adsorption capacity of 549.5 mg g−1.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/GA21-01401S" target="_blank" >GA21-01401S: Inovativní kompozity na bázi vodivých polymerů pro čištění vody</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Gels

ISSN

2310-2861

e-ISSN

2310-2861

Svazek periodika

10

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

16

Strana od-do

415

Kód UT WoS článku

001277554900001

EID výsledku v databázi Scopus

2-s2.0-85199571437