Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6633488 | Fuel | 2016 | 8 Pages |
Abstract
Coal fly ash (CFA) was transformed to Na-P zeolite (CFA-ZP) experimentally at atmospheric pressure and low temperature (â¼100 °C) via conventional hydrothermal heating followed by sonochemical energy in 4 h. The synthesized products were characterized using XRD, TGA/DTA, SEM, PSD, and BET techniques and CEC method. The effect of ultra-sonication time on crystallinity of the synthesized zeolite was studied. Crystallinity of Na-P zeolite as high as 87% was achieved at the optimum experimental conditions of NaOH/CFA of 0.27 and 1 h conventional heating followed by 3 h ultrasound irradiation. Experimental results revealed that sonochemical treatment shortened the crystallization time from 24 h to 4 h. Increasing the conventional heating time and decreasing the ultra-sonication time resulted in a lower crystallinity of the synthesized zeolite.
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Authors
Tahani Aldahri, Jamshid Behin, Hossein Kazemian, Sohrab Rohani,