Preparation of NaP zeolite block from fly ash-based geopolymer via in situ hydrothermal method
作者： Xiumei Qiu , Yadong Liu , Dan Li , Chunjie Yan
DOI: 10.1007/S10934-014-9895-3
关键词:
摘要: Particular macroshape structures of zeolite are required in numerous application fields to avoid secondary powder pollution. In this paper, a NaP block with high strength was successfully fabricated from fly ash-based geopolymer through situ hydrothermal process. The results SEM and XRD confirmed that the alkalinity, crystallization time temperature system played an important role controlling morphology crystallinity final samples. Under optimal conditions (100 °C, 2.0 mol/L NaOH solution, 24 h), exhibited distinct diamond ball-like shape sharp edges good crystallinity. addition, BET specific surface area, average mesopores diameter compressive were respectively 50.46 m2/g, 11.06 nm 23.21 MPa.
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