Journal
JOURNAL OF CLEANER PRODUCTION
Volume 171, Issue -, Pages 76-84Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2017.09.270
Keywords
Geopolymer; Zeolite; Composite; Compressive strength; Porosity; CO2 adsorption
Categories
Funding
- University of Limoges
- city of Limoges
- Limousin region
Ask authors/readers for more resources
This study reports the production and characterization of a new class of geopolymer-zeolite materials obtained adding a commercial synthetic zeolite to a geopolymer matrix, to combine the functional micro-porosity of the zeolite with the meso-porosity of the geopolymer matrix, with the further possibility to consolidate the zeolite powder. Geopolymer-zeolite composites were produced mixing different metakaolin-based geopolymer matrices with zeolite Na13X, largely used for CO2 adsorption. Porous monoliths, with 3-dimensional interconnected open pores, were obtained and characterized. The composites were also tested in term of CO2 uptake, to highlight one of the possible functional properties of the new material. Composite monoliths based on Na-geopolymer matrix with Si/Al molar ratio equal to 1.2 were most promising thanks to a compressive strength of about 3 MPa, the presence of a wide range of porosity (from 5 A to 2 mu m), a high specific surface area (211 m(2) g(-1)), the formation of a zeolite NaA phase, and an improved CO2 adsorption capacity over the 50% of the expected value (3.1% vs 2.1%). (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available