Carbon quantum dots modified CdSe loaded reduced graphene oxide for enhancing photocatalytic activity

[Display omitted] •CQDs/CdSe-rGO photocatalyst was fabricated by hydrothermal method.•CQDs and rGO enhance transfer of charge and improve photocatalytic activity.•h+, O2− and 1O2 radicals are major active species in the photocatalytic reaction. Carbon quantum dots (CQDs)/CdSe/reduced graphene oxide...

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Bibliographic Details
Published in:Journal of industrial and engineering chemistry (Seoul, Korea) 2017, 50(0), , pp.147-154
Main Authors: Huo, Pengwei, Guan, Jingru, Zhou, Mingjun, Ma, Changchang, Liu, Xinlin, Yan, Yongsheng, Yuan, Shouqi
Format: Article
Language:English
Subjects:
Antibiotics
Carbon quantum dots
CdSe QDs
Photocatalytic technology
rGO
화학공학
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Summary:[Display omitted] •CQDs/CdSe-rGO photocatalyst was fabricated by hydrothermal method.•CQDs and rGO enhance transfer of charge and improve photocatalytic activity.•h+, O2− and 1O2 radicals are major active species in the photocatalytic reaction. Carbon quantum dots (CQDs)/CdSe/reduced graphene oxide (rGO) was fabricated by hydrothermal method. The structures, optical and electronic properties of as-obtained photocatalysts were analyzed by transmission electron microscopy (TEM), X-ray diffraction (XRD) and photoelectrochemical testing. The photocatalytic performances were investigated by degradation of tetracycline hydrochloride (TC·HCl). The results showed CQDs modified CdSe loaded rGO could effectively remove TC·HCl, the CdSe modified with 7mL CQDs showed higher photocatalytic degradation rate; the 5wt% loaded rGO for CQDs/CdSe showed highest photocatalytic activity. The photocatalytic mechanism exhibited OH, O2− and 1O2 radicals play key roles.
ISSN:1226-086X
1876-794X
DOI:10.1016/j.jiec.2017.02.008