Mechanically induced built-in electric field in BCTZ nanostructures for piezocatalysis: Experiments and modeling

Yang, Han1; Cheng, Junfu1; Huang, Liang2; Lu, Ruie2; Hu, Chengzhi3; Fu, Bi1; Dai, Jianfeng4,5; Wang, Yaping6,7

2024-12-01

10.1016/j.materresbull.2024.113066

MATERIALS RESEARCH BULLETIN   影响因子和分区

0025-5408

1873-4227

Ba(Ti0.80Zr0.20)O3-0.5(Ba0.7Ca0.3)TiO3 (BCTZ) piezoelectric nanofibers (NFs) and nanoparticles (NPs) were fabricated using electrospinning and sol-gel methods, respectively. The impact of BCTZ nanostructure on piezocatalysis was investigated, revealing that both poled NFs and NPs exhibit a piezocatalytic degradation rate of 2.8 x 10-2 min-1, which is significantly higher than their unpoled counterparts at 2.3 x 10-2 min-1 and 1.9 x 10-2 min-1, respectively. The enhanced piezocatalytic degradation rates of the poled BCTZ nanostructures are attributed to their superior piezoelectricity, resulting in larger built-in electric fields under external strain. Moreover, BCTZ NFs provide numerous active piezocatalytic reaction sites confined to the one-dimensional (1D) fibrous boundaries. Simulation results indicate that BCTZ NFs exhibit greater displacement and higher piezoresponse compared to nanoparticles, due to the electromechanical coupling effect facilitated by the 1D nanostructure. This study provides an efficient pathway to understanding the coupling mechanism between the poled built-in electric field and piezotronics.

Ferroelectrics Polarization Piezoelectricity Piezocatalysis

SCI ; EI

英语

其他

Start-Up Funding of Guangdong Polytechnic Normal University[2022SDKYA010] ; Natural Science Foundation of Guangdong Province[2024A1515010212]

Materials Science

Materials Science, Multidisciplinary

WOS:001302980300001

PERGAMON-ELSEVIER SCIENCE LTD

MATERIALS SCIENCE

Web of Science

1.Guangdong Polytech Normal Univ, Sch Optoelect Engn, Guangzhou 510665, Peoples R China
2.Guangzhou Univ, Sch Mech & Elect Engn, Guangzhou 510006, Peoples R China
3.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen Key Lab Biomimet Robot & Intelligent Syst, Shenzhen, Peoples R China
4.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
5.Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
6.Xi An Jiao Tong Univ, Xian 710049, Peoples R China
7.Xi An Jiao Tong Univ, MOE Key Lab Nonequilibrium Synth & Modulat Condens, Xian 710049, Peoples R China

Yang, Han,Cheng, Junfu,Huang, Liang,et al. Mechanically induced built-in electric field in BCTZ nanostructures for piezocatalysis: Experiments and modeling[J]. MATERIALS RESEARCH BULLETIN,2024,180.

Yang, Han.,Cheng, Junfu.,Huang, Liang.,Lu, Ruie.,Hu, Chengzhi.,...&Wang, Yaping.(2024).Mechanically induced built-in electric field in BCTZ nanostructures for piezocatalysis: Experiments and modeling.MATERIALS RESEARCH BULLETIN,180.

Yang, Han,et al."Mechanically induced built-in electric field in BCTZ nanostructures for piezocatalysis: Experiments and modeling".MATERIALS RESEARCH BULLETIN 180(2024).