|A visible-light-sensitive siloxene-based composite material with enhanced photocatalytic activity|
: 484 : 2018.10.15 00:00
|JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY|
|Kang, HJ (Kang, Hyeo Ji) ; Hur, NH (Hur, Nam Hwi) 2018.10.01|
A visible-light-sensitive siloxene-based composite material with enhanced photocatalytic activity
Kang, HJ (Kang, Hyeo Ji)[ 1 ] ; Lee, S (Lee, Sunhye)[ 1 ] ; Jung, HJ (Jung, Hyuk Joon)[ 1 ] ; Yang, HJ (Yang, Hee Jung)[ 1 ] ; Lee, KH (Lee, Kyu Hyung)[ 1 ] ; Hur, NH (Hur, Nam Hwi)[ 1 ]
[ 1 ] Sogang Univ, Dept Chem, 35 Baekbeom Ro, Seoul 04107, South Korea
A novel layer-stacking approach that produces a layered composite of siloxene and reduced graphene oxide (RGO) sheets is presented. This method is based on the assembly of siloxene and graphene oxide sheets, followed by reduction at low temperature using solid hydrazine. High-resolution transmission electron microscopy reveals that the resulting siloxene-RGO composite has a layered structure with sheets that appear to be alternately stacked in a face-to-face fashion. This composite exhibits excellent photocatalytic activity under visible-light irradiation, with a photocurrent density that is about 40 times higher than that of the siloxene sheets alone. It is evident that the RGO sheets stacked on the siloxene surfaces are the key elements that increase the photo catalytic activity of the layered composite. This layer-stacking approach enhances siloxene properties in many ways, rendering ample opportunities for the development of new siloxene-based composite materials with novel functionalities.