High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers

被引：18

作者：

Al-Wadaani, Fahd ^{[1
]}

Omer, Ahmed ^{[1
]}

Abboudi, Mostafa ^{[1
]}

Hassani, Hicham Oudghiri ^{[1
,2
]}

Rakass, Souad ^{[1
]}

Messali, Mouslim ^{[1
]}

Benaissa, Mohammed ^{[3
]}

机构：

[1] Taibah Univ, Chem Dept, Coll Sci, Almadinah 30002, Saudi Arabia

[2] Cegep Drummondville, Dept Sci Nat, 960 Rue St Georges, Drummondville, PQ J2C 6A2, Canada

[3] Univ Mohammed 5, Fac Sci, Dept Phys, LMPHE, BP 1014 RP, Rabat 10000, Morocco

来源：

MOLECULES | 2018年 / 23卷 / 02期

关键词：

nanostructures; beta-CoMoO4; nitrophenol reduction; nanoparticles; ELECTROCHEMICAL PROPERTIES; PHOTOCATALYTIC ACTIVITY; THERMAL-DECOMPOSITION; COMOO4; OXALATE; CO; OXIDATION; MOLYBDATE; NANOPARTICLES; TEMPERATURE;

D O I：

10.3390/molecules23020364

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Nanostructured beta-CoMoO4 catalysts have been prepared via the thermal decomposition of an oxalate precursor. The catalyst was characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD), Brunauer-Emmett-Teller method (BET), energy dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM). The efficiency of these nanoparticles in the reduction of ortho- and meta-nitrophenol isomers (2-NP, 3-NP, and 4-NP) to their corresponding aminophenols was tested using UV-visible spectroscopy measurements. It was found that, with a beta-CoMoO4 catalyst, NaBH4 reduces 3-NP instantaneously, whilst the reduction of 2-NP and 4-NP is slower at 8 min. This difference is thought to arise from the lower acidity of 3-NP, where the negative charge of the phenolate could not be delocalized onto the oxygen atoms of the meta-nitro group.

引用

页数：10

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