A novel study on the influence of cork waste residue on metakaolin-zeolite based geopolymers
PBN-AR
Instytucja
Instytut Chemii Fizycznej Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
en
Czasopismo
APPLIED CLAY SCIENCE (35pkt w roku publikacji)
ISSN
0169-1317
EISSN
Wydawca
ELSEVIER SCIENCE BV
DOI
URL
Rok publikacji
2018
Numer zeszytu
Strony od-do
196-210
Numer tomu
152
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
Geopolymer
Metakaolin
Zeolite
Cork waste
Heavy metals
Adsorption
Compressive strength
Streszczenia
Język
en
Treść
The effect of industrial waste from the cork industry on the strength and adsorption properties of zeolite-metakaolin based geopolymers has been studied. Cork residue 20\% by weight was added to geopolymers that contained 0\%, 25\%, 50\%, 75\% replacement of metakaolin by zeolite in the structure. The SiO2/Al2O3 and Na2O/Al2O3 molar ratios were kept at 1 to reduce the environmental impact of sodium silicate and sodium hydroxide to the minimum. The compressive strength evolution after 1, 14 and 28 days in water and the heavy metals (Cd2+, Cr3+, Cu2+, Pb2+, and Zn2+) adsorption of the geopolymers were determined. It was found that addition of zeolite and cork residue in minor amounts concurrently aided in increasing the compressive strength of geopolymers. The adsorption properties, however, were dominated by the presence of cork residue and meta kaolin which resulted in increasing adsorption of all heavy metal cations with increasing metakaolin in the structure. The adsorption was well fitted by the Langmuir model with R-2 > 0.98 and the trend of adsorption was found to be Pb2+ > Cd2+ > Cu2+, Zn2+ > Cr3+. The significant improvement in compressive strength, as well as adsorption capacity observed with the addition of cork waste residue, connotes that it can be efficient as filler in geopolymers.
Cechy publikacji
Original article
Original article presents the results of original research or experiment.
Oryginalny artykuł naukowy
Oryginalny artykuł naukowy przedstawia rezultaty oryginalnych badań naukowych lub eksperymentu.
Inne
System-identifier
PBN-R:889958
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