BROWSE

Related Researcher

Author's Photo

Ryu, Jungki
Bio-inspired Functional Materials Lab (BFML)
Research Interests
  • Biomimetics, artificial photosynthesis, biomimetic catalysis, CO2 utilization

ITEM VIEW & DOWNLOAD

Benzothiazole-Based Covalent Organic Frameworks with Different Symmetrical Combinations for Photocatalytic CO2 Conversion

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Benzothiazole-Based Covalent Organic Frameworks with Different Symmetrical Combinations for Photocatalytic CO2 Conversion
Author
Kim, Young HyunKim, NayeongSeo, Jeong-MinJeon, Jong-PilNoh, Hyuk-JunKweon, Do HyungRyu, JungkiBaek, Jong-Beom
Issue Date
2021-10
Publisher
American Chemical Society
Citation
CHEMISTRY OF MATERIALS
Abstract
The physical and photochemical properties of covalent organic frameworks (COFs) can be tuned by their structural features such as the chemical composition and conjugation of building units. The combination of building units with different intrinsic properties can also influence their intrinsic electronic, adsorption, and optical properties. For the study on the symmetrical feature of COF and its physical/photochemical properties, we prepared benzothiazole-based COFs (TTzTp and BTzTp) with two different combinations, composed of tris-benzothiazole triamine (TTz) or bis-benzothiazole diamine (BTz) with triformylphloroglucinol (Tp), respectively. For their C3+C3 and C3+C2 symmetries, the COFs, synthesized from benzothiazole core units with approximately twice the difference in their pore dimensions, showed good affinity with CO2 and light-harvesting properties depending on the conjugation state of building units. The COFs were then applied as photosensitizers in a photocatalytic CO2 conversion system. The larger-pore-sized BTzTp showed a higher CO2-to-CO conversion rate than TTzTp, which stemmed from enhanced photocatalytic driving force by suitable band alignment, wider band gap with longer separated charge lifetime, and higher charge carrier mobility with a higher crystalline fraction in the structure.
URI
https://scholarworks.unist.ac.kr/handle/201301/54613
URL
https://pubs.acs.org/doi/10.1021/acs.chemmater.1c02660
DOI
10.1021/acs.chemmater.1c02660
ISSN
0897-4756
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU