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Highly Efficient Photocatalytic Conversion of CO 2 to CO Catalyzed by Surface‐Ligand‐Removed and Cd‐Rich CdSe Quantum Dots
Author(s) -
Xia Wu,
Wu Jin,
Hu JunChao,
Sun Shanshan,
Li MingDe,
Liu Hongfang,
Lan Minhuan,
Wang Feng
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201901633
Subject(s) - photocatalysis , ligand (biochemistry) , quantum dot , photochemistry , catalysis , stoichiometry , chemistry , visible spectrum , triethylamine , dimethylformamide , materials science , nanotechnology , organic chemistry , biochemistry , receptor , optoelectronics , solvent
Surface ligand‐removed and Cd‐rich CdSe quantum dots (QDs) exhibited exceptional activity as photocatalyst for the conversion of CO 2 to CO. A CO production rate up to 789 mmol g −1 h −1 was achieved in a triethylamine/dimethylformamide mixture under visible‐light irradiation. Mechanistic studies revealed that improving the Cd/Se stoichiometric ratio and exposing more active surface Cd atoms significantly enhanced the activity of CdSe QDs for CO 2 photoreduction.