Bio‐Metabolism‐Driven Crystalline‐Engineering of CdS Quantum Dots for Highly Active Photocatalytic H 2 Evolution

Biosynthesis was considered as a green and sustainable approach for nanomaterials fabrication. However, it is still quite challenging to fine tune the biosynthesis process for high‐quality photocatalytic nanomaterials. In this study, an aerobic approach for biosynthesis of photocatalytic CdS quantum...

Full description

Saved in:
Bibliographic Details
Published inChemistrySelect (Weinheim) Vol. 6; no. 15; pp. 3702 - 3706
Main Authors Xu, Li‐Xia, Wang, Yan‐Zhai, Zhou, Dao, Chen, Meng‐Yuan, Yang, Xue‐Jin, Ye, Xiao‐Mei, Yong, Yang‐Chun
Format Journal Article
LanguageEnglish
Published 22.04.2021
Online AccessGet full text

Cover

More Information
Summary:Biosynthesis was considered as a green and sustainable approach for nanomaterials fabrication. However, it is still quite challenging to fine tune the biosynthesis process for high‐quality photocatalytic nanomaterials. In this study, an aerobic approach for biosynthesis of photocatalytic CdS quantum dots (QDs) by Shewanella oneidensis MR‐1 was developed. Interestingly, it was found that by simply tuning the concentration of substrates, the crystalline structure of the CdS QDs was transformed between cubic phase and hexagonal phase. The hexagonal CdS QDs synthesized by simple substrate‐metabolism regulation exhibited high photocatalytic H 2 evolution activity (21 mmol H 2 /g CdS/h), which was the highest record for CdS QDs. This finding demonstrated the possibility to well control the crystalline structure of biosynthesized QDs by simple bio‐metabolism regulation and provided a bio‐metabolism‐driven green route for crystalline engineering.
ISSN:2365-6549
2365-6549
DOI:10.1002/slct.202100591