首页|Efficient piezo-assisted near-infrared-light-driven Cr(Ⅵ)reduction over Bi2S3 nanowires transformed from ultrathin Bi2WO6 nanosheets

Efficient piezo-assisted near-infrared-light-driven Cr(Ⅵ)reduction over Bi2S3 nanowires transformed from ultrathin Bi2WO6 nanosheets

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The utilization of piezo-photocatalytic technol-ogy for environmental remediation under full spectrum solar light is promising but still challenging.Herein,one-dimensional Bi2S3 nanowires,which can utilize both mechanical energy and near-infrared(NIR)light to remove hexavalent chromium(Cr(Ⅵ))efficiently,were synthe-sized by a restrained growth method.The reaction rate constants of Cr(Ⅵ)reduction in piezo-photocatalytic process under NIR(800-2500 nm)reached 0.334 min-1,which were 3.2 and 12.4 times as that of single piezo and photocatalytic process.The formation of polarized electric fields and one-dimensional structure allow ultrafast sepa-ration of charge carriers,thereby promoting the catalytic activity.Furthermore,due to the strong penetrability of NIR light,the piezo-photocatalysis performance in turbid solutions under NIR light(0.188 min-1)was even com-parable to that under visible light(0.186 min-1).This study provides a new concept on the development of piezo-photocatalytic technology for environmental remediation by utilization of NIR light and natural mechanical energy.

Piezo-photocatalysisNIR lightBi2S3 nanowiresCr(Ⅵ)

Qiang Zhang、Yuan-Hao Cheng、Wei Liu、Hui-Nan Che、Yan-Hui Ao

展开 >

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes,Ministry of Education,College of Environment,Hohai University,Nanjing 210098,China

Natural Science Foundation of ChinaNatural Science Foundation of ChinaFundamental Research Funds for the Central UniversitiesChina Postdoctoral Science FoundationChina Postdoctoral Science FoundationPAPD Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)

5197908152100179B2102020522020M6800632021T140176

2024

10.1007/s12598-024-02744-3

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(9)
  • 2