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BiOBr-BiOI microsphere assembled with atom-thick ultrathin nanosheets and its high photocatalytic activity
Guo, XJ; Zhen, MM; Liu, HJ; Liu, L
2015
Source PublicationRSC ADVANCES
Volume5Issue:31Pages:24777—24782
Subtype期刊文献
AbstractBiOBr-BiOI composite microspheres assembled with atom-thick ultrathin nanosheets have been synthesized via a simple solvothermal route with the surfactant polyvinylpyrrolidone (PVP). The structure was characterized with AFM, which confirmed the 0.9 nm thickness of the single-layered nanosheets. The ultrathin structure with atomic thickness mainly relies on its lamellar structure and the reason for the formation of the few- or even single-layered structure is the strong intra-layer chemical bonding and weak inter-layer interaction. The 3D BiOBr-BiOI exhibits excellent photocatalytic activity for BPA degradation under visible light irradiation. Nearly 80% of BPA was degraded in 2 h irradiation, and over 90% after 5 h. Based on these findings, the photodegradation mechanism was investigated and O-2(-) was suggested to be the main active oxidant in the BPA-removal processes. Our investigation showed that the electron-hole pairs on ultrathin nanosheets can be separated effectively which resulted in significantly promoted solar-driven photocatalytic activity for extremely low photocatalyst loading.
KeywordSolvothermal Synthesis Light Irradiation Bisphenol-a Performance Heterojunction Nanocrystals Composites Crystals Facile Layers
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24402
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Guo, XJ,Zhen, MM,Liu, HJ,et al. BiOBr-BiOI microsphere assembled with atom-thick ultrathin nanosheets and its high photocatalytic activity[J]. RSC ADVANCES,2015,5(31):24777—24782.
APA Guo, XJ,Zhen, MM,Liu, HJ,&Liu, L.(2015).BiOBr-BiOI microsphere assembled with atom-thick ultrathin nanosheets and its high photocatalytic activity.RSC ADVANCES,5(31),24777—24782.
MLA Guo, XJ,et al."BiOBr-BiOI microsphere assembled with atom-thick ultrathin nanosheets and its high photocatalytic activity".RSC ADVANCES 5.31(2015):24777—24782.
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