TY - JOUR
T1 - Cobalt-doped UiO-66 nanoparticle as a photo-assisted Fenton-like catalyst for the degradation of rhodamine B
AU - Ma, Lili
AU - Feng, Xueting
AU - Cai, Fanghui
AU - Sun, Chunyu
AU - Ding, Hanming
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/6/20
Y1 - 2022/6/20
N2 - Metal-organic frame materials are intensively investigated in catalysis due to their outstanding thermal stability, large specific surface area, and ultra-high porosity. In this work, a cobalt-doped zirconium-based metal-organic framework, Co-UiO-66, was synthesized by the hydrothermal approach. Co-UiO-66 could successfully activate peroxymonosulfate (PMS) ions to produce reactive oxygen species for the degradation of rhodamine B (RhB) when it was used as a Fenton-like catalyst. The catalyst with 4% Co in mass in UiO-66 (4% Co-UiO-66) showed the highest degradation efficiency. About 97.3% of RhB (50 ml of 30 mg L−1) was degraded in 45 min under simulated sunlight when 10 mg of 4% Co-UiO-66 was used. The degradation efficiency was much higher than that when pure UiO-66 was used. Furthermore, it was even slightly higher than when cobalt ions were used as the activator. The single-atomic dispersion and confinement effect in Co-UiO-66, as well as the strong absorption in the visible light region are responsible for the high catalytic efficiency.
AB - Metal-organic frame materials are intensively investigated in catalysis due to their outstanding thermal stability, large specific surface area, and ultra-high porosity. In this work, a cobalt-doped zirconium-based metal-organic framework, Co-UiO-66, was synthesized by the hydrothermal approach. Co-UiO-66 could successfully activate peroxymonosulfate (PMS) ions to produce reactive oxygen species for the degradation of rhodamine B (RhB) when it was used as a Fenton-like catalyst. The catalyst with 4% Co in mass in UiO-66 (4% Co-UiO-66) showed the highest degradation efficiency. About 97.3% of RhB (50 ml of 30 mg L−1) was degraded in 45 min under simulated sunlight when 10 mg of 4% Co-UiO-66 was used. The degradation efficiency was much higher than that when pure UiO-66 was used. Furthermore, it was even slightly higher than when cobalt ions were used as the activator. The single-atomic dispersion and confinement effect in Co-UiO-66, as well as the strong absorption in the visible light region are responsible for the high catalytic efficiency.
KW - Activation of peroxymonosulfate
KW - Cobalt doping
KW - Confined catalysis
KW - Metal-organic frame
KW - Single-atomic dispersion
UR - https://www.scopus.com/pages/publications/85126277666
U2 - 10.1016/j.colsurfa.2022.128734
DO - 10.1016/j.colsurfa.2022.128734
M3 - 文章
AN - SCOPUS:85126277666
SN - 0927-7757
VL - 643
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
M1 - 128734
ER -