Ag/AgCl decorated Bi4Ti3O12 nanosheet with highly exposed (001) facets for enhanced photocatalytic degradation of Rhodamine B, Carbamazepine and Tetracycline
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Abstract
Abstract The Ag/AgCl decorated Bi 4 Ti 3 O 12 nanosheet with highly exposed (001) facets was successfully synthesized via a facile method and characterized by TEM, SEM, XRD, XPS and DRS. The Bi 4 Ti 3 O 12 was developed into the layered structure with (001) facets highly exposed and thickness less than 50 nm. The Ag/AgCl nanoparticles less than 10 nm were uniformly decorated on the surface of Bi 4 Ti 3 O 12 nanosheet. The photocatalytic performance of the photocatalysts was carried out through the decomposition of Rhodamine B, Carbamazepine and Tetracycline aqueous solution under visible-light irradiation. Ag/AgCl/Bi 4 Ti 3 O 12 nanosheet showed superior photocatalytic activities on all of these organic pollutants. As a result, rate constant of the Ag/AgCl/Bi 4 Ti 3 O 12 nanosheet is 5.7 times of Bi 4 Ti 3 O 12 nanosheet for Rhodamine B degradation and 3.4 times for Tetracycline degradation and much higher for Carbamazepine degradation. The synthesized Ag/AgCl/Bi 4 Ti 3 O 12 nanosheet also exhibited high reusability for the photodegradation reaction. Additionally, a conceivable visible-light photocatalysis mechanism was proposed in detail. The enhancement of photocatalytic performance of the catalyst may be attributed to the synergetic effects the internal electric fields between Bi 4 Ti 3 O 12 nanosheet and the SPR effect of Ag nanoparticles.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Covalent Organic Framework Applications
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