Study on preparation of Bi12O17Cl2/TiO2 heterojunction and its performance in the decomposition of aquatic hydrogen
Bi12O17Cl2/TiO2 heterojunction samples were successfully prepared through loading method.The structure and properties of as-prepared samples were analyzed by XRD,XPS,SEM,BET,UV-Vis DRS,EIS and PL.The results showed that Bi12O17Cl2/TiO2 heterojunction samples could significantly improve the separation efficiency of photogenerated carrier and further improve the activity of photocatalytic hydrogen production.Among them,6%-Bi12O17Cl2/TiO2 sample with 6%Bi12O17Cl2 loading amount showed the best photocatalytic hydrogen production activity.After 5h irradiation,the hydrogen production reached 147.92μmol·g-1,and the average hydrogen production reached 29.58μmol·(g·h)-1.The stability experiment showed that Bi12O17Cl2/TiO2 heterojunction samples exhibited good stability,and the hydrogen production activity did not change obviously after 5h irradiation.
Bi12O17Cl2/TiO2heterojunctionseparation efficiencyhydrogen production activity
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