Constructing ZnSn(OH)6/SrSn(OH)6 perovskite-structured hydroxide heterojunction to enhance photocatalytic degradation of toluene
Source abstract
Abstract
A ZnSn(OH) 6/SrSn(OH) 6 perovskite-structured hydroxide heterojunction was constructed by a simple one-pot hydrothermal method and applied to degrade toluene under UV light. The optimal sample 20% ZnSn(OH) 6/SrSn(OH) 6 heterojunction (named 20% ZSH/SSH) exhibits a toluene degradation rate of 86.55%, which is 26.34% and 20.13% higher than that of SrSn(OH) 6 and ZnSn(OH) 6 for 30 min, respectively. The ESR shows that ·OH and ·O 2 − generated in the SrSn(OH) 6/ZnSn(OH) 6 system acted as the main reactive radical to induce the degradation of toluene. Moreover, the degradation process of toluene was also investigated by In-situ DRIFTS, which demonstrates a pathway that ZnSn(OH) 6/SrSn(OH) 6 could promote the conversion of toluene to benzyl alcohol, benzaldehyde, benzoic acid, and then mineralized to H 2O and CO 2 . This work offers a promising approach for building perovskite-structured hydroxide heterojunction by a simple one-pot hydrothermal method to improve photocatalytic performance for reducing indoor air contamination.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Layered Double Hydroxides Synthesis and Applications · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (56)
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