Piezo-photocatalytic reduction of toxic Cr(VI) ions based on MoS2 nanoflowers

被引：18

作者：

Li, Xiu ^{[1
]}

Ren, Zeqian ^{[1
]}

Zhang, Qiwei ^{[1
]}

Guo, Lixia ^{[1
]}

Wu, Jizhou ^{[1
,2
]}

Li, Yuqing ^{[1
,2
]}

Liu, Wenliang ^{[1
,2
]}

Li, Peng ^{[1
]}

Fu, Yongming ^{[1
]}

Ma, Jie ^{[1
,2
]}

机构：

[1] Shanxi Univ, Inst Laser Spect, Sch Phys & Elect Engn, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China

来源：

MATERIALS LETTERS | 2023年 / 333卷

基金：

国家重点研发计划; 俄罗斯基础研究基金会; 中国国家自然科学基金;

关键词：

Nanoparticles; Piezoelectric materials; Cr6+ reduction; Piezo-photocatalysis; MoS2; nanoflower;

D O I：

10.1016/j.matlet.2022.133564

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The reduction of Cr6+ is very important for sewage treatment. Here, a strategy is proposed for the highly efficient reduction of Cr6+ by co-utilizing the photocatalysis and piezoelectric effect of MoS2 nanoflowers. Under both solar-irradiation (300 W Xe lamp) and ultrasonication, the Cr6+ removal rate catalyzed by few-layer MoS2 nanoflowers (10 mg) increases with increasing ultrasonication power, and a maximum of 96.22 % is achieved under solar irradiation and ultrasonication (100 W) for 20 min, similar to 3.65-fold of that under only solar irradiation. The fast Cr6+ removal rate can be ascribed to the synergistic effect of light induced reduction effect and ultrasound induced piezoelectric field. This work explores a new approach for highly efficient Cr6+ removal.

引用

页数：4

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