典型文献
Electrostatic Field Enhanced Photocatalytic CO2 Conversion on BiVO4 Nanowires
文献摘要:
The recombination loss of photo-carriers in photocatalytic systems fatally determines the energy conversion efficiency of photocata-lysts.In this work,an electrostatic field was used to inhibit the recom-bination of photo-carriers in photocatalysts by separating photo-holes and photo-electrons in space.As a model structure,(010) facet-exposed BiVO4 nanowires were grown on PDMS-insulated piezo-substrate of piezoelectric transducer (PZT).The PZT substrate will generate an electrostatic field under a certain stress,and the photocatalytic behavior of BiVO4 nanowires is influenced by the electrostatic field.Our results showed that the photocatalytic performance of the BiVO4 nanowires in CO2 reduction in the negative electrostatic field is enhanced to 5.5-fold of that without electrostatic field.Moreover,the concentration of methane in the products was raised from 29% to 64%.The enhanced CO2 reduc-tion efficiency is mainly attributed to the inhibited recombination loss of photo-carriers in the BiVO4 nanowires.The increased energy of photo-carriers and the enhanced surface absorption to polar molecules,which are CO in this case,were also play important roles in improving the photocatalytic activity of the photocatalyst and product selectivity.This work proposed an effective strategy to improve photo-carriers separation/transfer dynamics in the photocatalytic systems,which will also be a favorable reference for photovoltaic and photodetecting devices.
文献关键词:
中图分类号:
作者姓名:
Shuai Yue;Lu Chen;Manke Zhang;Zhe Liu;Tao Chen;Mingzheng Xie;Zhen Cao;Weihua Han
作者机构:
Key Laboratory for Environmental Pollution Prediction and Control of Gansu Province,College of Earth and Environmental Sciences,Lanzhou University,Lanzhou 730000,People's Republic of China;School of Physical Science and Technology,Lanzhou University,Lanzhou 730000,People's Republic of China
文献出处:
引用格式:
[1]Shuai Yue;Lu Chen;Manke Zhang;Zhe Liu;Tao Chen;Mingzheng Xie;Zhen Cao;Weihua Han-.Electrostatic Field Enhanced Photocatalytic CO2 Conversion on BiVO4 Nanowires)[J].纳微快报(英文),2022(01):250-261
A类:
fatally,photodetecting
B类:
Electrostatic,Field,Enhanced,Photocatalytic,Conversion,BiVO4,Nanowires,recombination,loss,carriers,photocatalytic,systems,determines,energy,conversion,efficiency,In,this,work,electrostatic,field,was,used,photocatalysts,by,separating,holes,electrons,space,model,structure,facet,exposed,nanowires,were,grown,PDMS,insulated,substrate,piezoelectric,transducer,PZT,will,generate,under,certain,stress,behavior,influenced,Our,results,showed,that,performance,reduction,negative,enhanced,fold,without,Moreover,concentration,methane,products,raised,from,mainly,attributed,inhibited,increased,surface,absorption,polar,molecules,which,are,case,also,play,important,roles,improving,activity,selectivity,This,proposed,effective,strategy,improve,separation,transfer,dynamics,favorable,reference,photovoltaic,devices
AB值:
0.482371
相似文献
机标中图分类号,由域田数据科技根据网络公开资料自动分析生成,仅供学习研究参考。