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- Title
Study on visible photocatalytic activity of an oxalate-extended Co(II) coordination polymer.
- Authors
Jia-Jia Zhang; Jian-Hui Liu; Yu-Chang Wang; Wen-Fu Yan; Yuan-Peng Wang; Yu Han; Jia-Tong Qu; Juan Jin; Yong-Feng Liu; Jun-Shen Liu
- Abstract
A two-dimensional (2D) coordination polymer [Co(ox)(bpy)] 1 (ox = oxalate, bpy = 4,4'-bipyridine) was prepared by hydrothermal synthesis using CoCl2⋅5H2O, oxalic acid, bpy as raw material. Compound 1 is a 2D structure extended by ox and bpy, and it has excellent visible photocatalytic performance. The photocatalytic efficiency of compound 1 could reach up to 98.13% with pH = 10 when two drops of H2O2 were added to methylene blue. The photocatalytic degradation results could be described by the first-order kinetic. Besides, after five cycles, the degradation efficiency decreased only 4.11% (without H2O2) and 5.22% (with H2O2). Meanwhile, the solid fluorescence and UV-Visible diffuse reflection of compound 1 were also studied. What's more, the visible light photo- catalytic mechanism of compound 1 was analyzed more clearly by free radical trapping experiment and Mott-Schottky curve.
- Subjects
PHOTOCATALYSTS; COORDINATION polymers; OXALIC acid; METHYLENE blue; OXALATES; PHOTODEGRADATION
- Publication
Desalination & Water Treatment, 2023, Vol 316, p111
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2023.30179