| Autor: |
Liu, Xiaomeng, Zhong, Yitian, Feng, Haosheng, Zhao, Yanxi, Li, Qin, Huang, Tao |
| Předmět: |
|
| Zdroj: |
New Journal of Chemistry; 1/14/2024, Vol. 48 Issue 2, p800-810, 11p |
| Abstrakt: |
AgI/BiOI composites were prepared with BiOI nanosheets as the substrate by in situ ion exchange and characterized by a series of characterization methods. The photocatalytic performance tests showed that the effective separation of photogenerated electron–hole pairs and the photocatalytic activities of the AgI/BiOI composites could be achieved by adjusting the Ag/Bi molar ratios, which may result in changes in the composition and structure of the AgI/BiOI composites. Among them, the AgI/BiOI-1.2 sample with a Ag/Bi molar ratio of 1.2 demonstrated a Bi5O7I composition and the highest separation efficiency of photogenerated electron–hole pairs, as well as the best photocatalytic performance for norfloxacin (NOR) photodegradation. More than 98.8% of NOR could be removed over AgI/BiOI-1.2 within 120 min under the optimum conditions. Radical quenching experiments confirmed that the photogenerated holes and ˙O2− radicals played significant roles during the process of photocatalytic NOR degradation. A possible Z-type heterojunction mechanism for the photocatalytic degradation of NOR over AgI/BiOI-1.2 was proposed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
