caa a22 4500 606194649 CHVBK 20210128100915.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10934-014-9895-3 doi (NATIONALLICENCE)springer-10.1007/s10934-014-9895-3 Preparation of NaP zeolite block from fly ash-based geopolymer via in situ hydrothermal method [Elektronische Daten] [Xiumei Qiu, Yadong Liu, Dan Li, Chunjie Yan] Particular macroshape structures of zeolite are required in numerous application fields to avoid secondary powder pollution. In this paper, a NaP zeolite block with high strength was successfully fabricated from fly ash-based geopolymer through in situ hydrothermal process. The results of SEM and XRD confirmed that the alkalinity, crystallization time and temperature of the hydrothermal system played an important role in controlling the morphology and crystallinity of final samples. Under the optimal hydrothermal conditions (100°C, 2.0mol/L NaOH solution, 24h), the NaP zeolite block exhibited a distinct diamond ball-like shape and sharp edges with good crystallinity. In addition, the BET specific surface area, the average mesopores diameter and the compressive strength of NaP zeolite block were respectively 50.46m2/g, 11.06nm and 23.21MPa. Springer Science+Business Media New York, 2014 Fly ash-based geopolymer nationallicence NaP zeolite block nationallicence In-situ hydrothermal method nationallicence Qiu Xiumei Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Lu Mo Road 388, 430074, Wuhan, China aut Liu Yadong Wuhan University of Engineering Science, 430200, Wuhan, China aut Li Dan Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Lu Mo Road 388, 430074, Wuhan, China aut Yan Chunjie Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Lu Mo Road 388, 430074, Wuhan, China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 291-299 1380-2224 22:1<291 2015 22 10934 https://doi.org/10.1007/s10934-014-9895-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-014-9895-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Qiu Xiumei Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Lu Mo Road 388, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Liu Yadong Wuhan University of Engineering Science, 430200, Wuhan, China aut NATIONALLICENCE 700 1- Li Dan Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Lu Mo Road 388, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Yan Chunjie Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Lu Mo Road 388, 430074, Wuhan, China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 291-299 1380-2224 22:1<291 2015 22 10934