Microwave versus conventional-hydrothermal synthesis of NaY zeolite

This paper focuses on the synthesis of NaY zeolite crystals by using microwave-hydrothermal (M-H) processing. NaY zeolites were synthesized from colloidal silica, sodium aluminate, sodium hydroxide and deionized water at 100 degreesC, and some properties were studied. NaY zeolite crystals with high surface area, in the range of 439 to 716 m(2)/g, have been prepared at 100 degreesC for 1 to 3 hrs. Compared to the formation of NaY zeolite via conventional-hydrothermal (C-H) treatment, the M-H treatment led to increased rate of formation by 3 to 4 times.