Lead-free sodium niobate nanowires with strong piezo-catalysis for dye wastewater degradation

被引：148

作者：

Wang, Shensong ^{[1
,2
]}

Wu, Zheng ^{[2
]}

Chen, Jie ^{[2
]}

Ma, Jiangping ^{[3
]}

Ying, Jingshi ^{[3
]}

Cui, Shouchen ^{[4
]}

Yu, Shigang ^{[5
]}

Hu, Yongming ^{[1
]}

Zhao, Jinhe ^{[3
]}

Jia, Yanmin ^{[3
]}

机构：

[1] Hubei Univ, Fac Phys & Elect Sci, Hubei Key Lab Ferro & Piezoelect Mat & Devices, Wuhan 430062, Hubei, Peoples R China

[2] Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China

[3] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Peoples R China

[4] Jinhua Shuntong Environm Constrcut Co Ltd, Jinhua 321000, Peoples R China

[5] Zhejiang Normal Univ, Xingzhi Coll, Jinhua 321004, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Piezoelectric effect; Sodium niobate nanowires; Piezo-catalysis; Hydroxyl radicals; Dye degradation; NANOPARTICLES; LIGHT; PHOTODEGRADATION; ENHANCEMENT; ULTRASOUND; COMPOSITE; ENERGY; TIO2;

D O I：

10.1016/j.ceramint.2019.03.045

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, the hydrothermally-synthesized sodium niobate nanowires were used to decompose Rhodamine B dye solution through the piezo-catalytic effect. With the sodium niobate catalyst, a high piezo-catalytic degradation ratio of similar to 80% was achieved under the excitation of vibration for the Rhodamine B dye solution (similar to 5 mg/l). These active species in the catalytic process, hydroxyl radicals and superoxide radicals with the strong oxidation ability, were also observed, which confirmed the key role of piezoelectric effect for piezo-catalysis. The piezo-catalysis of sodium niobate nanowires provides a high-efficiency and reusable tool in application in depredating the dye wastewater.

引用

页码：11703 / 11708

页数：6

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