Stannic oxide(SnO2)and SnO2/reduced graphene oxide(RGO)were synthesized by a photochemical synthesis method,and characterized by XRD and SEM.The photocatalytic tests showed that SnO2/RGO compound had far higher photocatalytic activity than SnO2 in the reduction of aqueous Cr(Ⅵ) under ultraviolet light irradiation.The reaction rate constant for photocatalytic reduction of Cr(Ⅵ) by SnO2/RGO was about 4 times that by SnO2.The UV-Vis diffuse reflectance spectra found that SnO2 and SnO2/RGO displayed significant absorption of light with the wavelength of 400～800nm,suggesting that SnO2 and SnO2/RGO would be used as promising photocatalysts for absorbing visible light.
Zou Hongli, Wu Jianheng, Zeng Zhaoming, Gong Yulian, Sun Fengqiang
. Photochemical synthesis of SnO2/RGO compound with excellent photocatalytic performance for Cr(Ⅵ) reduction[J]. New Chemical Materials, 2021
, 49(11)
: 202
-206
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.11.042
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