Duan Yingnan, Yang Wanliang, Zheng Wei, He Guiwei, Chen Meng, Tian Mengkui
School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou, 550025, People's Republic of China.
Nanoscale Res Lett. 2019 Aug 30;14(1):302. doi: 10.1186/s11671-019-3127-3.
Visible-light-driven stannic oxide was synthesized by facile one-pot solvothermal method from SnCl·2HO and methanol. The as-prepared powder was identified by XRD as the low crystalline phase of SnO, and its absorption edge reached about 530 nm, presenting good potential to respond to visible light. Under visible light irradiation (λ > 420 nm), the as-prepared tin oxide showed good anodic photocurrent effects on FTO photoelectrode, and showed hydrogen and oxygen evolution activities under electron donor (methanol) and acceptor (AgNO), respectively, even without any co-catalyst loading. The visible-light-driven mechanism for this SnO maybe ascribed to Sn self-doped into Sn and formed an energy gap between the band gap of SnO.
通过简便的一锅溶剂热法，以SnCl·2HO和甲醇为原料合成了可见光驱动的氧化锡。通过XRD鉴定所制备的粉末为SnO的低结晶相，其吸收边达到约530nm，具有良好的可见光响应潜力。在可见光照射（λ>420nm）下，所制备的氧化锡在FTO光电极上表现出良好的阳极光电流效应，并且即使在没有任何共催化剂负载的情况下，分别在电子供体（甲醇）和受体（AgNO）存在下表现出析氢和析氧活性。这种SnO的可见光驱动机制可能归因于Sn自掺杂到Sn中，并在SnO的带隙之间形成了能隙。
