Preparation and characterization of TMA-A zeolite incorporated with ZnO nanocrystals

作者：Lim Chang Sung^*; Lee Seok Ju; Oh Won Chun; Kim Ik Jin

来源：Journal of Ceramic Processing Research, 2009, 10(3): 382-385.

• TMA-A zeolite
• ZnO
• Nano size
• Incorporation

Nano-sized ZnO crystals were successfully incorporated using an ion exchange method in TMA-A zeolite synthesized by the hydrothermal method. The optimal composition for the synthesis of TMA-A zeolite resulted from a solution of Al(i-pro)(3) : 2.2 TEOS: 2.4 TMAOH :0.3 NaOH :200 H(2)O. 0.3 g of TMA-A zeolite and a 5 mol of ZnCl(2) solution was employed for the preparation of ZnO incorporated TMA-A zeolite. The crystallization process and bonding structures of ZnO incorporated TMA-A zeolites were analyzed by XRD and FT-IR. The morphology and the particle size dependence on the temperature and time were observed using a particle size analyzer and SEM. The nano-sized ZnO crystals incorporated and the crystallinity of the TMA-A zeolite were evaluated by HRTEM. Subsequently, the ZnO incorporated TMA-A zeolite showed photoluminescent characteristics in the wavelengths of 330-260 am and 260-230 nm using a UV spectrophotometer.

• 出版日期2009-6