Study on the Preparation of Zn-Doped NaA Molecular Sieve and Its Photocatalytic Performance

Abstract Zn-doped NaA molecular sieves were prepared by hydrothermal method using zinc nitrate, sodium metaaluminate, silica sol, etc. as raw materials. The samples characterized XRD, SEM, FT-IR, etc., 300W xenon lamp the light source. Rhodamine B (RhB) was used target degradant for photocatalytic experiments its activity. results showed that ion doping increased number of active sites on sieve, effectively reduced photoelectron-hole recombination probability in and improved degradation rate rhodamine 50.8% after 2 hours exposure, process complied with Langmuir-Hinshelwood first-order kinetic equation.