Ultrasound promoted direct synthesis of nano Cu-Zn-Al-ZSM-5 in acid medium |
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| Authors: | Yongmei Liu Wei Huang Yansheng Zhao and Tao Dou |
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| Institution: | (1) Key Laboratory of Coal Science and Technology Ministry of Education and Shanxi Province, Taiyuan, 030024, China;(2) Institute of Special Chemistry, Taiyuan University of Technology, Taiyuan, 030024, China |
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| Abstract: | Nano Cu-Zn-Al-ZSM-5 was directly synthesized in HCl solutions with the promotion of ultrasound. XRD results show that the
appropriate concentrations of HCl in the synthetic process were between 0.25 M and 1 M, and the optimal crystallization time
and temperature were 28 h and 200°C, respectively. The ultrasound irradiation can significantly increase the crystallization
of Cu-Zn-Al-ZSM-5 within 0.5 h. SEM photographs of Cu-Zn-Al-ZSM-5 zeolite showed the crystal size is about 50–60 nm. Results
of ICP/AES show that the weight% of Cu in 101(Cu-Zn-Al-SOD) and 202(Cu-Zn-Al-ZSM-5) were 4.42% and 2.30%, respectively. |
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| Keywords: | Ultrasound nano Cu-Zn-Al-ZSM-5 synthesis acid medium |
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