Novel protonated Fe-containing mesoporous silica nanoparticle catalyst: excellent performance cyclohexane oxidation

被引：32

作者：

Sazegar, Mohammad Reza ^{[1
]}

Dadvand, Aysan ^{[1
]}

Mahmoudi, Ali ^{[1
]}

机构：

[1] Islamic Azad Univ, North Tehran Branch, Dept Chem, Fac Sci, Tehran, Iran

来源：

RSC ADVANCES | 2017年 / 7卷 / 44期

关键词：

DINUCLEAR IRON(III) COMPLEXES; HYDROGEN-PEROXIDE; SELECTIVE OXIDATION; MOLECULAR-SIEVES; FE-MCM-41; MCM-41; ACID; IRON; DEGRADATION; EPOXIDATION;

D O I：

10.1039/c7ra02280h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A mesoporous silica structure (MSN) was synthesized using the sol-gel method, followed by iron incorporation and protonation which afforded Fe-MSN and H/Fe-MSN with Si/Fe ratios of 20. Nitrogen physisorption confirmed their mesoporous structures with pore diameters of 3.9 nm. Iron incorporation decreased the degree of catalyst crystallinity. Fe-MSN and H/Fe-MSN catalyzed the oxidation of cyclohexane to cyclohexanone using hydrogen peroxide at 298 K in 1 h. The significant advantages of these catalysts were high conversion, short reaction time, easy work-up, and compatibility with various organic and aqueous solvents. The cyclohexanone product was obtained with excellent conversions of 86 and 97% at 298 K using Fe-MSN and H/Fe-MSN, respectively. H/Fe-MSN catalyst gave a higher conversion than Fe-MSN. A comparative study of cyclohexane oxidation in the presence of H2O2 over H/Fe-MSN heterogeneous catalyst showed that H/Fe-MSN had excellent activity at low temperature.

引用

页码：27506 / 27514

页数：9

共 39 条

[31] Synthesis of Ti-MCM-41 directly from silatrane and titanium glycolate and its catalytic activity [J].

Thanabodeekij, N ;

Tanglumlert, W ;

Gulari, E ;

Wongkasemjit, S .

APPLIED ORGANOMETALLIC CHEMISTRY, 2005, 19 (09) :1047-1054

[32] Synthesis of Fe-MCM-41 from silatrane and FeCl3 via sol-gel process and its epoxidation acivity [J].

Thitsartarn, W. ;

Gulari, E. ;

Wongkasemjit, S. .

APPLIED ORGANOMETALLIC CHEMISTRY, 2008, 22 (02) :97-103

[33] Study of DDT and its derivatives DDD, DDE adsorption and degradation over Fe-SBA-15 at low temperature [J].

Wang, Hailin ;

Tian, Hua ;

Hao, Zhengping .

JOURNAL OF ENVIRONMENTAL SCIENCES, 2012, 24 (03) :536-540

[34] Aerobic Oxidation of Cyclohexane on Catalysts Based on Twinned and Single-Crystal Au75Pd25 Bimetallic Nanocrystals [J].

Wang, Liangbing ;

Zhao, Songtao ;

Liu, Chenxuan ;

Li, Chen ;

Li, Xu ;

Li, Hongliang ;

Wang, Youcheng ;

Ma, Chao ;

Li, Zhenyu ;

Zeng, Jie .

NANO LETTERS, 2015, 15 (05) :2875-2880

[35] Highly acidic mesoporous aluminosilicates prepared from preformed HY zeolite in Na2SiO3 alkaline buffer system [J].

Wang, Linying ;

Wang, Anjie ;

Li, Xiang ;

Zhou, Feng ;

Hu, Yongkang .

JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (11) :2232-2239

[36] In situ coating metal oxide on SBA-15 in one-pot synthesis [J].

Wang, YM ;

Wu, ZY ;

Wei, YL ;

Zhu, JH .

MICROPOROUS AND MESOPOROUS MATERIALS, 2005, 84 (1-3) :127-136

[37] In-situ coating of SBA-15 with MgO: Direct synthesis of mesoporous solid bases from strong acidic systems [J].

Wei, YL ;

Wang, YM ;

Zhu, JH ;

Wu, ZY .

ADVANCED MATERIALS, 2003, 15 (22) :1943-+

[38] Preparation and catalytic performance of a novel highly dispersed bifunctional catalyst Pt@Fe-MCM-41 [J].

Wu, Naijin ;

Li, Baoshan ;

Liu, Jianjun ;

Zuo, Shengli ;

Zhao, Yunchen .

RSC ADVANCES, 2016, 6 (16) :13461-13468

[39]

Zhang QH, 2001, CHEM LETT, P946

← 1 2 3 4 →