Incorporation of graphene quantum dots to enhance photocatalytic properties of anatase TiO2

被引：33
|
作者：
Chinnusamy, Sowbaranigha [1 ]
Kaur, Ravneet [1 ]
Bokare, Anuja [1 ]
Erogbogbo, Folarin [1 ]
机构：
[1] San Jose State Univ, Dept Biomed Chem & Mat Engn, 1 Washington Sq, San Jose, CA 95112 USA
来源：
MRS COMMUNICATIONS | 2018年 / 8卷 / 01期
关键词：
NANOTUBES COMPOSITE; ELECTRON INJECTION; SINGLE-LAYER; MECHANISM; ENERGY; SIZE; CO2;
D O I：
10.1557/mrc.2018.7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Different sized graphene quantum dots (GQDs) have been synthesized by an inexpensive wet chemical method using bird charcoal as a precursor. Obtained GQDs found to have luminescence and visible light absorption. These GQDs are further coupled with titanium dioxide (TiO2) to form TiO2-GQDs nanocomposites. GQD nanostructures exhibit band gap tunability and have the potential to enhance the photoabsorption in TiO2. The hybrid combination of the nanomaterials decrease the recombination of charge carriers, increase charge carrier mobility, and improve the overall photoconversion efficiency. The composites exhibit higher photocatalytic activity and rate constants value than pure TiO2.
引用
收藏
页码：137 / 144
页数：8
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