Enhanced Visible-Light Photocatalytic Performance of Electrospun rGO/TiO2 Composite Nanofibers

被引：120

作者：

Nasr, Maryline ^{[1
,2
,3
]}

Balme, Sebastien ^{[1
]}

Eid, Cynthia ^{[2
,3
]}

Habchi, Roland ^{[2
,3
]}

Miele, Philippe ^{[1
]}

Bechelany, Mikhael ^{[1
]}

机构：

[1] Univ Montpellier, CNRS, UMR 5635, IEM,ENSCM, Pl Eugene Bataillon, F-34095 Montpellier 5, France

[2] Lebanese Univ, Fac Sci 2, EC2M, Campus Pierre Gemayel, Beirut 90239, Lebanon

[3] Lebanese Univ, Res Platform Nanosci & Nanotechnol, Campus Pierre Gemayel, Beirut 90239, Lebanon

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2017年 / 121卷 / 01期

关键词：

REDUCED GRAPHENE OXIDE; TIO2; NANOFIBERS; NANOPARTICLES; ANATASE; DEGRADATION; NANOCOMPOSITE;

D O I：

10.1021/acs.jpcc.6b08840

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reduced graphene oxide (rGO)/titaniurn dioxide (TiO2) composite nanofibers as photocatalytic materials were successfully elaborated' by using electroSpinning. The as-spun nanofibers with controlled ratio of rGO were annealed at 500 degrees C under nitrogen in a tubular furnace. Structural;-Morphological, and optical characterizations demonstrate the success of rGO incorporation in the TiO2 nanofibers. The performances of these nanocomposites, for photocatalytic application have been evaluated. The presence of rGO sheets decreases the band gap energy of TiO2 NFs from 3.2 to 2.9 Hence, in the photodegradation of methyl orange (MO), a significant enhancement in the reaction rate was observed with rGO/TiO2 (2 wt %) composite NFs compared to commercial TiO2-P25. In addition, the kinetic of MO degradation by rGO/TiO2 (2 wt %) composite NFs is 6 times higher than that by commercial TiO2. Thus, the photocatalytic activity of the cOmposites rGO/TiO2 significantly increases the visible-light photoresponse and improves the separation of photoinduced electron-hole pairs of TiO2.

引用

页码：261 / 269

页数：9

共 49 条

[1] ZnO 1D nanostructures designed by combining atomic layer deposition and electrospinning for UV sensor applications [J].