Titania-supported silver nanoparticles: An efficient and reusable catalyst for reduction of 4-nitrophenol

被引：70
作者：
Deshmukh, S. P. [1 ,2 ]
Dhokale, R. K. [1 ]
Yadav, H. M. [1 ,3 ]
Achary, S. N. [4 ]
Delekar, S. D. [1 ,5 ]
机构：
[1] Dr Babasaheb Ambedkar Marathwada Univ, Dept Chem, Aurangabad 413501, MS, India
[2] DBF Dayanand Coll Arts & Sci, Dept Chem, Solapur 413001, MS, India
[3] DY Patil Univ, Interdisciplinary Res Ctr, Kolhapur 416005, MS, India
[4] Bhabha Atom Res Ctr, Div Chem, Bombay 400085, MS, India
[5] Shivaji Univ, Dept Chem, Kolhapur 416001, MS, India
来源：
APPLIED SURFACE SCIENCE | 2013年 / 273卷
关键词：
Supported nanoparticles; Chemical synthesis; Electron microscopy; Optical properties; Catalytic properties; PHOTOCATALYTIC ACTIVITY; CHARGE-DISTRIBUTION; GOLD NANOPARTICLES; AQUEOUS-SOLUTION; SURFACE; SILICA; TIO2; STABILITY; HYDROGENATION; OXIDATION;
D O I：
10.1016/j.apsusc.2013.02.110
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Supported silver nanoparticles were synthesized via in situ sol-gel followed by reduction method with dextrose as reductant and sodium dodecyl sulfate as stabilizer. The synthesized nanoparticles were characterized by X-ray diffraction, transmission electron microscopy, Fourier transform Infra-Red spectroscopy and UV-visible measurements. The XRD peaks confirm the metallic face-centered cubic silver particles. The formation of silver nanoparticles was confirmed from the appearance of surface plasmon absorption maxima at 412 nm; which shifted to the longer wavelengths after supported on titania host lattice. TEM showed the spherical nanoparticles with size in the range of 18-23 nm. An efficient and simple method was reported for the reduction of 4-nitrophenol using titania-supported silver nanoparticles at room temperature. The reaction was first order with respect to the concentration of 4-nitrophenol with higher efficiency. Titania supported silver nanoparticles are reusable and stable heterogeneous catalyst. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：676 / 683
页数：8
相关论文
共 56 条
[11]   Structural refinement and photocatalytic activity of Fe-doped anatase TiO2 nanoparticles [J].
Delekar, S. D. ;
Yadav, H. M. ;
Achary, S. N. ;
Meena, S. S. ;
Pawar, S. H. .
APPLIED SURFACE SCIENCE, 2012, 263 :536-545
[12]   A well-confined redox route to silver nanoparticles on the surface of MoO3 [J].
Dong, WJ ;
Feng, SH ;
Shi, Z ;
Li, LS ;
Xu, YH .
CHEMISTRY OF MATERIALS, 2003, 15 (10) :1941-1943
[13]   Ag-deposited silica-coated Fe3O4 magnetic nanoparticles catalyzed reduction of p-nitrophenol [J].
Du, Xiaoyan ;
He, Jiang ;
Zhu, Jie ;
Sun, Lijuan ;
An, Songsong .
APPLIED SURFACE SCIENCE, 2012, 258 (07) :2717-2723
[14]   Enhancement of stability of N-doped TiO2 photocatalysts with Ag loading [J].
Gao, Yuanpeng ;
Fang, Pengfei ;
Chen, Feitai ;
Liu, Yang ;
Liu, Zhi ;
Wang, Dahai ;
Dai, Yiqun .
APPLIED SURFACE SCIENCE, 2013, 265 :796-801
[15]   Silver and gold nanocluster catalyzed reduction of methylene blue by arsine in a micellar medium [J].
Ghosh, SK ;
Kundu, S ;
Mandal, M ;
Pal, T .
LANGMUIR, 2002, 18 (23) :8756-8760
[16]   A Multifunctional Biocide/Sporocide and Photocatalyst Based on Titanium Dioxide (TiO2) Codoped with Silver, Carbon, and Sulfur [J].
Hamal, Dambar B. ;
Haggstrom, Johanna A. ;
Marchin, George L. ;
Ikenberry, Myles A. ;
Hohn, Keith ;
Klabunde, Kenneth J. .
LANGMUIR, 2010, 26 (04) :2805-2810
[17]   Charge separation and catalytic activity of Ag@TiO2 core-shell composite clusters under UV-irradiation [J].
Hirakawa, T ;
Kamat, PV .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (11) :3928-3934
[18]   Stable silver nanoparticles immobilized in mesoporous silica [J].
Hornebecq, V ;
Antonietti, M ;
Cardinal, T ;
Treguer-Delapierre, M .
CHEMISTRY OF MATERIALS, 2003, 15 (10) :1993-1999
[19]   CO oxidation and oxygen-assisted CO adsorption/desorption on Ag/MnOx catalysts [J].
Hu, Rongrong ;
Xie, Lanying ;
Ding, Shi ;
Hou, Han ;
Cheng, Yi ;
Wang, Dezheng .
CATALYSIS TODAY, 2008, 131 (1-4) :513-519
[20]   Charge distribution between UV-irradiated TiO2 and gold nanoparticles:: Determination of shift in the Fermi level [J].
Jakob, M ;
Levanon, H ;
Kamat, PV .
NANO LETTERS, 2003, 3 (03) :353-358
123456