Nanoarchitectonics of S-scheme 0D/2D SbVO4/g-C3N4 photocatalyst for enhanced pollution degradation and H2 generation

Abstract

In this work, we successfully explored the possibility of using SbVO 4 nanoparticles to construct photocatalyst. In detail, 0D/2D SbVO 4 /g-C 3 N 4 was constructed by a simple physical mixing strategy. The SbVO 4 /g-C 3 N 4 composite exhibits the admire photocatalytic performance including H 2 generation from water, and the photocatalytic degradation activity of RhB, MB and ceftriaxone sodium. Based on ESR radical detection and photoelectrochemical tests, the result can be well concluded that an efficient S-scheme heterojunction is formed between SbVO 4 and g-C 3 N 4 . The charge separation of the SbVO 4 /g-C 3 N 4 composite has been dramatically improved in comparison to their monomers due to the built-in electric field, band bending and electrostatic attraction, and the charge carriers with high redox activity, resulting in enhanced activity. A S-scheme heterojunction formed by g-C 3 N 4 and SbVO 4 for efficient water splitting and photocatalytic degradation on composite under a 300 W Xe lamp. As a result, the charge separation process can be greatly promoted, improving the H 2 production performance and degradation activity of samples. • SbVO 4 nanoparticles are rarely used in photocatalytic degradation of pollutants and H 2 evolution. • S-scheme charge transfer route was formed between SbVO 4 and g-C 3 N 4 heterojunction. • SbVO 4 /g-C 3 N 4 exhibits superior degradation activity toward various pollutants. • SbVO 4 /g-C 3 N 4 composite possesses intimate 0D/2D contact interface and higher surface area.