Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 20, Issue 38, Pages 24561-24569Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cp03530j
Keywords
-
Funding
- National Natural Science Foundation of China [51572173, 51602197, 51771121, 51702212]
- Shanghai Municipal Science and Technology Commission [15520720300, 16060502300, 16JC402200]
- Shanghai Eastern Scholar Program [QD2016014]
- Shanghai Pujiang Talent Program [16PJ1407700]
Ask authors/readers for more resources
We report a feasible strategy via hydrothermal crystallization to activate Kagome lattice-structured Cu3V2O7(OH)(2)center dot 2H(2)O volborthite mineral as a stable visible-light-driven photocatalyst. It was demonstrated to play a crucial role in stimulating absorption ability and photodegradation performance for the removal of methylene blue present in high concentration. In contrast, direct calcination was almost ineffective, whereas post-calcination was significantly detrimental. Moreover, the photocatalytic water oxidation activity of hydrothermally crystallizated volborthite was comparable to that of BiVO4, and it was clearly higher than those of WO3 and g-C3N4 from aqueous NaIO3 solution. By further in situ decoration with an optimum amount of CoOx cocatalysts (i.e., 2 wt%), the oxygen evolution rate of volborthite was greatly enhanced, and it was 1.6-fold, 1.8-fold and 2.9-fold higher than those of BiVO4, WO3 and g-C3N4, respectively. The importance of hydrothermal crystallization can be elucidated in terms of water-Kagome lattice structure interactions involving built-in intrinsic electric field and formation of single hydrogen bonds.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available