Method for synthesizing nano-sized zeolite beta

A method for synthesizing a nano-sized zeolite beta, the method comprising:

• mixing alumina and tetraethylammonium hydroxide (TEAOH) to form an aluminum solution;
• mixing silica, additional TEAOH, and water to form a silica slurry;
• adding the aluminum solution into the silica slurry and mixing for at least 1 hour to form an aluminosilicate gel, where the aluminosilicate gel has a molar ratio composition of 20 to 500 SiO2:
• 8 to 300 TEAOH:
• Al2O3:
• 17 to 700 H2O;
• transferring the aluminosilicate gel to an autoclave operated at 120° C. to 160° C. for 2 to 4 days at a rotational speed of 60 to 100 rotations per minute to form a zeolite precursor colloid;
• washing the zeolite precursor colloid with water to form a washed colloid;
• drying the washed colloid at 80° C. to 150° C. for 6 to 24 hours to form a zeolite precursor;
• and
• calcining the zeolite precursor at 400° C. to 650° C. for 2 to 8 hours to form the nano-sized zeolite beta.