by Shandong Binzhou Tianjian Biotechnology Co. is used as raw material,
and its characteristic is shown in
were purchased from Shanghai Macklin Biochemical Co., Ltd. NiCl2·6H2O and γ-Al2O3 were purchased from Sinopharm Chemical Reagent Co., Co(NO3)2·6H2O was purchased from Shanghai Aladdin
Biochemical Technology Co., Ltd., and SAPO-34 was purchased from Nanjing
XFNANO Materials Tech Co., Ltd. All water used in this work is 18
MΩ cm deionized water with Milli-Q. In addition, the purity
of the reagents in this experiment was 99.9%.