| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8015081 | Materials Letters | 2018 | 11 Pages |
Abstract
Ternary shell/core/core Bi2S3/graphene quantum dots/TiO2 nanowire arrays (Bi2S3/GQDs/TNWs) photoelectrodes are constructed through electrophoretic deposition of GQDs onto TNWs followed by electrochemical deposition of Bi2S3 QDs. An interesting synergistic effect was observed in configuration of Bi2S3/GQDs/TNWs. Under irradiation, the photocurrent density of 50â¯Î¼A/cm2 (an enhancement of â¼86%) and the removal efficiency of Cr (VI) is 97% (an enhancement of â¼76%) compared to that TiO2 nanowire array were obtained. Such significant enhancement is attributed to the strong photoabsorption ability of Bi2S3 QDs and excellent electron transport ability of GQDs.
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Authors
Hongchao Geng, Pengwei Du, Zhiwei Zhang, Lu Yao, Kesheng Cao, Songtian Li, Pengtao Sheng,