Fenton reaction-driven pro-oxidant synergy of ascorbic acid and iron oxide nanoparticles in MIL-88B(Fe)

被引：5

作者：

Bondarenko, Lyubov ^{[1
,2
]}

Baimuratova, Rose ^{[3
]}

Dzeranov, Artur ^{[1
,2
,3
]}

Pankratov, Denis ^{[4
]}

Kicheeva, Arina ^{[5
]}

Sushko, Ekaterina ^{[5
,6
,7
]}

Kudryasheva, Nadezhda ^{[5
,7
]}

Valeev, Rishat ^{[8
]}

Tropskaya, Natalya ^{[1
,2
]}

Dzhardimalieva, Gulzhian ^{[1
,3
]}

Kydralieva, Kamila ^{[1
]}

机构：

[1] Natl Res Univ, Moscow Aviat Inst, Moscow 125993, Russia

[2] Sklifosovsky Res Inst Emergency Med, Moscow 129090, Russia

[3] Russian Acad Sci, Fed Res Ctr Problems Chem Phys & Med Chem, Chernogolovka 142432, Moscow Region, Russia

[4] Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia

[5] Inst Biophys SB RAS, Fed Res Ctr, Krasnoyarsk Sci Ctr SB RAS, Krasnoyarsk 660036, Russia

[6] Inst Phys SB RAS, Fed Res Ctr, Krasnoyarsk Sci Ctr SB RAS, Krasnoyarsk 660036, Russia

[7] Siberian Fed Univ, Krasnoyarsk 660041, Russia

[8] Udmurt Fed Res Ctr UB RAS, Izhevsk 426067, Russia

来源：

NEW JOURNAL OF CHEMISTRY | 2024年 / 48卷 / 22期

基金：

俄罗斯科学基金会;

关键词：

X-RAY-DIFFRACTION; VITAMIN-C; RAMAN-SPECTRA; MAGNETITE; OXIDATION; SURFACE; CATALYSTS; MAGHEMITE; BIOLUMINESCENCE; QUANTIFICATION;

D O I：

10.1039/d4nj00963k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

MIL-88B, a promising Fe-based 3D porous metal-organic framework (MOF) catalyst for the Fenton reaction, requires modifications to enhance its pro-oxidant activity and enable magnetic control of the sample. This study reports the successful modification of MIL-88B with iron oxide (Fe3O4) and ascorbic acid (AA). The characterization of the crystal structure and morphology of the Fe3O4-AA MOF sample using X-ray diffraction, Raman and M & ouml;ssbauer spectroscopy, and scanning electron microscopy revealed that AA facilitated the formation of magnetite with a composition approaching a stoichiometry of Fe2.96O4 while preserving the MOF structure. Specifically, in the presence of hydrogen peroxide (H2O2), Fe3O4-AA-MOF exhibited a 3-fold increase in the Fenton reaction rate for methylene blue degradation compared to the conventional homogeneous system at pH 4.5. Furthermore, Fe3O4-AA-MOF retained the antibacterial properties of AA, as evidenced by its ability to increase reactive oxygen species in luminescent marine bacterium Photobacterium phosphoreum at low concentrations while exhibiting moderate cytotoxicity. The enhanced pro-oxidant activity of the Fe3O4-AA-MOF/H2O2 system is attributed to an AA-promoted surface Fe2+/Fe3+ cycle. A possible mechanism for this system is proposed. Firstly Fe3O4-MIL-88B(Fe) was studied, and the pro-oxidant role of ascorbic acid in enhancing its catalytic properties is investigated.

引用

页码：10142 / 10160

页数：19

共 94 条

[1] Tuning Lewis acidity of MIL-88B-Fe with mix-valence coordinatively unsaturated iron centers on ultrathin Ti3C2 nanosheets for efficient photo Fenton reaction [J].