BiOCl Atomic Layers with Electrons Enriched Active Sites Exposed for Efficient Photocatalytic CO2 Overall Splitting (IMAGE)
Caption
- BiOCl atomic layers (BOCNSs-i) were prepared by exfoliating hydrothermally synthesized BiOCl (BOCNSs) via ultrasonication in isopropanol for efficient photocatalytic CO2 overall splitting to CO and O2.
- The obtained BOCNSs-i photocatalyst exhibits a distinctly improved photocatalytic performance to stoichiometrically produce CO and O2 at the ratio of 2:1, with the CO evolution rate reaching 134.8 µmol g-1 h-1 under simulated solar light (1.7 suns) and reaching 13.3 mmol g-1 h-1 under concentrated solar irradiation (34 suns).
- With the thickness of BiOCl photocatalyst reducing to atomic layers, the charge carrier transfer and separation were enhanced by shortened transfer distance and the increased built-in electric field intensity, and electrons enriched Bi sites were exposed for activating CO2 molecules.
Credit
Ting Peng, Yiqing Wang, Chung-Li Dong, Ta Thi Thuy Nga, Binglan Wu, Yiduo Wang, Qingqing Guan, Wenjie Zhang, Shaohua Shen.
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CC BY-NC-ND