A novel Z-type ZnIn2S4 nanosheet-coated TiO2 nanorods heterostructures for efficient photocatalytic degradation of tetracycline
Source abstract
Abstract
The construction of heterojunction structures of semiconductor photocatalysts to achieve efficient separation of photogenerated electron–hole pairs is important for enhancing tetracycline (TC) degradation efficiency. In this work, TiO2/ZnIn2S4 (TNZIS) Z-type heterostructures were prepared by in situ growth of ultrathin ZnIn2S4 on TiO2 nanorods. The degradation efficiency (90.0%) of TNZIS heterojunction for TC was significantly higher than that of pure TiO2 and ZnIn2S4. This is mainly because the construction of Z-type heterojunction photocatalyst not only increases the specific surface area, exposes abundant active sites, and improves the utilization of light, but also provides a wide and short transport path for carriers, and inhibits fast recombination of photogenerated electron holes. At the same time, the charge transfer of Z-type heterojunctions was investigated in depth after a series of tests. Finally, the mechanism of photocatalytic degradation of TC by TNZIS heterojunctions was proposed. This work is expected to provide new ideas for the design and preparation of novel Z-type heterojunction photocatalysts. TiO2/ZnIn2S4 (TNZIS) Z-type heterostructures were prepared by in situ growth of ultrathin ZnIn2S4 on TiO2 nanorods. The construction of the Z-type heterojunction inhibits the rapid recombination of photoelectron-hole pairs, thereby enhancing the degradation efficiency of tetracycline.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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