Enhanced photocatalytic and antifungal properties of Sr-doped PbS nanopowders

被引：21

作者：

Suganya, M. ^{[1
]}

Anitha, S. ^{[1
]}

Prabha, D. ^{[1
]}

Balamurugan, S. ^{[1
]}

Srivind, J. ^{[1
]}

Balu, A. R. ^{[1
]}

机构：

[1] AVVM Sri Pushpam Coll, PG & Res Dept Phys, Poondi, India

来源：

MATERIALS TECHNOLOGY | 2018年 / 33卷 / 03期

关键词：

Calcination; powders; grain boundaries; biomedical applications; THIN-FILMS; COMPOSITE NANOPARTICLES; PHYSICAL-PROPERTIES; MAGNETIC-PROPERTIES; CDS;

D O I：

10.1080/10667857.2017.1396777

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sr-doped PbS (PbS:Sr) nanopowders were synthesised by a cost-effective chemical method with 0, 5, 10 and 15 wt.% Sr doping concentrations. The structural, morphological, photocatalytic and antifungal properties of the synthesised samples were studied and the results obtained are reported in this paper. The XRD patterns confirm that both the undoped and doped samples exhibit cubic crystal structure with a strong (2 0 0) preferential growth. Nanosized grains are evinced from the SEM and TEM images. EDX spectra confirm the presence of Sr in the doped samples. FTIR studies confirm the presence of band related to PbS at 618 cm(-1). Photodegradation efficiency of pure PbS against the degradation of methyl orange (MO) increases with Sr doping. PbS:Sr nanopowders show enhanced antifungal properties against A. terreus fungus. Among the doped samples, the 10 wt.% Sr-doped sample exhibit better photocatalytic and antifungal properties.

引用

页码：214 / 219

页数：6

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