Synthesis of a Novel 1D/2D Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>–BiOI Heterostructure and Its Enhanced Photocatalytic Activity
A novel 1D/2D Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>–BiOI heterojunction photocatalyst with high-quality interfaces was synthesized through a hydrothermal method by using Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> nanorods and...
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| Main Authors: | , , , |
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| Format: | article |
| Language: | EN |
| Published: |
MDPI AG
2021
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| Subjects: | |
| Online Access: | https://doaj.org/article/672efb84d5bf4dcfa522fee9d694713a |
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| Summary: | A novel 1D/2D Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>–BiOI heterojunction photocatalyst with high-quality interfaces was synthesized through a hydrothermal method by using Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> nanorods and KI as raw materials. Two-dimensional (2D) BiOI nanosheets uniformly and vertically grow on the 1D porous Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> rods. Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>–BiOI heterojunctions exhibit better photocatalytic activity than pure Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> nanorods and BiOI nanosheets. Cr(VI) (30 mg/L), MO (20 mg/L) and BPA (20 mg/L) can be completely degraded in 8–15 min. The superior photocatalytic performance of 1D/2D Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>–BiOI heterojunction is ascribed to the synergistic effects: (a) vertical 2D on 1D multidimensional structure; (b) the formation of the Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>–BiOI p–n heterojunction; (c) high-quality interfaces between Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> and BiOI. |
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