Synthesis and characterization of silver-nanoparticle-deposited α-Bi2Mo3O12 nanorods

被引:7
作者
Ghule, Anil Vithal [1 ]
Ghule, Kalyani [1 ]
Tzing, Shin-Hwa [1 ]
Ling, Yong-Chien [1 ]
机构
[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30013, Taiwan
关键词
nanoparticles; ultrasound; deposition; nanorods; surface analysis; electron microscopy;
D O I
10.1002/ejic.200700181
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Silver (Ag) nanoparticles with an average size of ca. 10 nm were uniformly deposited on the surface of alpha-Bi2Mo3O12 nanorods by using an ultrasound sonication method. Ultrasonic irradiation of preformed alpha-Bi2Mo3O12 spherical nanoparticles (ca. 200 nm) in pyridine resulted in alpha-Bi2Mo3O12 nanorods (ca. 100 nm diameter). Further, sonication of the mixture of alpha-Bi2Mo3O12 nanorods and Ag2O in pyridine yielded a nanocomposite of alpha-Bi2Mo3O12 nanorods with deposited Ag nanoparticles and pyridine. Calcination of the nanocomposite at 450 degrees C afforded pyridine-free alpha-Bi2Mo3O12 nanorods with deposited Ag nanoparticles. A plausible mechanism is proposed. The crystallized Ag nanoparticles are uniformly deposited on the surface, with bismuth (Bi) as the preferential binding site, as revealed by time-of-flight secondary ion mass spectrometry (TOF-SIMS). Structural, compositional and morphological characterization of the products is carried out by using transmission electron microscopy, energy-dispersive X-ray analysis, scanning electron microscopy, thermogravimetric analysis, X-ray diffraction, Xray photoelectron spectroscopy and TOF-SIMS. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007).
引用
收藏
页码:3342 / 3349
页数:8
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