Strong tribocatalytic dye degradation by tungsten bronze Ba4Nd2Fe2Nb8O30

被引：44

作者：

Sun, Chaozhong ^{[1
]}

Guo, Xiaoying ^{[1
]}

Ji, Rui ^{[1
]}

Hu, Changzheng ^{[1
]}

Liu, Laijun ^{[1
]}

Fang, Liang ^{[1
]}

Cheng, Zhenxiang ^{[2
]}

Luo, Nengneng ^{[1
,3
]}

机构：

[1] Guilin Univ Technol, Guangxi Key Lab Opt & Elect Mat & Devices, Key Lab New Proc Technol Nonferrous Met & Mat, Coll Mat Sci & Engn,Minist Educ, Guilin 541004, Peoples R China

[2] Univ Wollongong, Inst Superconducting & Elect Mat, Innovat Campus,Squires Way, North Wollongong, NSW 2500, Australia

[3] Guangxi Univ, Key Lab New Proc Technol Non Ferrous Met & Mat, Guangxi Key Lab Proc Non Ferrous Met & Featured M, Sch Resources Environm & Mat,Minist Educ, Nanning 530004, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Triboelectric energy; Tungsten bronze structure; Tribocatalysis; Friction; Dye degradation; WATER; NANOPARTICLES; CATALYSIS; PHOTOCATALYST; PROGRESS; HYBRID; ENERGY;

D O I：

10.1016/j.ceramint.2020.10.081

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：

The triboelectric effect has recently demonstrated its great potential in environmental remediation and even new energy applications for triggering a number of catalytic reactions by utilizing trivial mechanical energy. In this study, Ba4Nd2Fe2Nb8O30 (BNFN) submicmn powders were used to degrade organic dyes via the tribocatalytic effect. Under the frictional excitation of three PTFE stirring rods in a 5 mg/L RhB dye solution, BNFN demonstrates a high tribocatalytic degradation efficiency of 97% in 2 h. Hydroxyl radicals (center dot OH) and superoxide radicals (center dot O-2 -) were also detected during the catalysis process, which proves that triboelectric energy stimulates BNFN to generate electron-hole pairs. The tribocatalysis of tungsten bronze BNFN submicron powders provides a novel and efficient method for the degradation of wastewater dye by utilizing trivial mechanical energy.

引用

页码：5038 / 5043

页数：6

共 34 条

[1] Metastable ferroelectric phase and crossover in the Ba2NdFeNb4-xTaxO15 TTB solid solution [J].