Sonochemical synthesis and loading of PbS nanoparticles into mesoporous silica

被引:25
作者
Akbay, Elif [1 ]
Olmez, Tufan Gur [1 ]
机构
[1] Anadolu Univ, Chem Engn, Eskisehir, Turkey
关键词
PbS; SBA-15; Sonochemical synthesis; Semiconductor; QUANTUM DOTS; NANOCOMPOSITE; NANOCRYSTALLITES; MORPHOLOGIES; REDUCTION; PROPERTY; NANORODS; ARRAYS;
D O I
10.1016/j.matlet.2017.12.117
中图分类号
T [工业技术];
学科分类号
120111 [工业工程];
摘要
A sonochemical method was used for simultaneous synthesis and loading of lead sulfide (PbS) nanoparticles into mesoporous SBA-15 (Santa Barbara Amorphous). In this study, the effect of different loading ratios (30, 45, 60, 75%) on morphology, crystalline structure and physicochemical characteristics of PbS-SBA-15_samples was investigated. TEM images showed that the PbS nanoparticles were highly dispersed inside the SBA-15 pores for all tested loadings, however especially 60 and 75%-PbS-SBA15_samples exhibited significant surface aggregation of PbS on SBA-15 surface. Also, PbS-SBA15_samples showed a strong UV light absorption at about 290-310 nm with increasing band gap energies, which is indicative of quantization effects. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:263 / 267
页数:5
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