TY - JOUR
T1 - High-quality Cu2ZnSnS4 and Cu2ZnSnSe4 nanocrystals hybrid with ZnO and NaYF4
T2 - Yb, Tm as efficient photocatalytic sensitizers
AU - Yang, Yawei
AU - Que, Wenxiu
AU - Zhang, Xinyu
AU - Yin, Xingtian
AU - Xing, Yonglei
AU - Que, Meidan
AU - Zhao, Hongyang
AU - Du, Yaping
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - A chloroform-assistant Se dissolution in oleylamine without trioctylphosphine and alkylthiol as the green precursor was used for facile and robust synthesis of quaternary selenide nanocrystals. The S2− modified hydrophilic Cu2ZnSnS4 and Cu2ZnSnSe4 nanocrystals were first prepared by a one-pot thermal decomposition route, followed by a bi-phase hydrophilic treatment process. As a proof of concept, the as-obtained hydrophilic nanocrystals were hybridized with ZnO microspheres as photosensitizers to achieve visible light-driven photocatalytic application; on the other hand, hybridized with NaYF4: Yb, Tm microplates to achieve near-infrared light-driven photocatalytic application. These photosensitized hybrids as photocatalysts expanded the light absorption from ultraviolet to visible even near-infrared region, which showed excellent photocatalytic Rhodamine B degradation under visible and near-infrared irradiation compared to pure ZnO and NaYF4: Yb, Tm, respectively. Therefore, these hydrophilic Cu2ZnSnS4 and Cu2ZnSnSe4 nanocrystals are proved as efficient photocatalytic sensitizers due to the efficient utilization of the visible light and emissions upconverted from near-infrared light.
AB - A chloroform-assistant Se dissolution in oleylamine without trioctylphosphine and alkylthiol as the green precursor was used for facile and robust synthesis of quaternary selenide nanocrystals. The S2− modified hydrophilic Cu2ZnSnS4 and Cu2ZnSnSe4 nanocrystals were first prepared by a one-pot thermal decomposition route, followed by a bi-phase hydrophilic treatment process. As a proof of concept, the as-obtained hydrophilic nanocrystals were hybridized with ZnO microspheres as photosensitizers to achieve visible light-driven photocatalytic application; on the other hand, hybridized with NaYF4: Yb, Tm microplates to achieve near-infrared light-driven photocatalytic application. These photosensitized hybrids as photocatalysts expanded the light absorption from ultraviolet to visible even near-infrared region, which showed excellent photocatalytic Rhodamine B degradation under visible and near-infrared irradiation compared to pure ZnO and NaYF4: Yb, Tm, respectively. Therefore, these hydrophilic Cu2ZnSnS4 and Cu2ZnSnSe4 nanocrystals are proved as efficient photocatalytic sensitizers due to the efficient utilization of the visible light and emissions upconverted from near-infrared light.
KW - CuZnSnS
KW - CuZnSnSe
KW - Hydrophilic treatment
KW - Photocatalytic sensitizer
KW - Rare earth upconversion
UR - https://www.scopus.com/pages/publications/84989904344
U2 - 10.1016/j.apcatb.2016.07.022
DO - 10.1016/j.apcatb.2016.07.022
M3 - 文章
AN - SCOPUS:84989904344
SN - 0926-3373
VL - 200
SP - 402
EP - 411
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
ER -