期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 97, 期 -, 页码 847-852出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2012.07.068
关键词
Biomaterial; SnO2 nanoparticles; UV-visible spectroscopy; Powder X-ray diffraction; Thermal analysis; Heterogeneous photocatalysis
类别
资金
- Extramural Research & Intellectual Property Rights (ER&IPR), Defence Research and Development Organization (DRDO), Ministry of Defence, Government of India, New Delhi under ER IPR project [ERIP/ER/0803730/M/01/1166]
Nanocrystalline, tin(IV) oxide (SnO2) particles has been prepared by thermal decomposition of tin oxalate precursor obtained from the reactions of tin(IV) chloride and sodium oxalate using eggshell membrane (ESM). The as-prepared SnO2 nanoparticles were characterized by thermal studies, transmission electron microscopy (TEM), powder X-ray diffraction (XRD), Raman, FT-IR and UV-visible studies and used as a photocatalyst for the degradation of rhodamine-B (Rh-B) dye. The size of the prepared nanoparticles was in the range of 5-12 nm as identified from the TEM images. Powder XRD data revealed the presence of a tetragonal, rutile crystalline phase of the tin(IV) oxide nanoparticles. Thermal analysis showed that the decomposition of tin oxalate precursor to yield the titled tin(IV) oxide nanoparticles was completed below 500 degrees C. The extent of degradation of Rh-B in the presence of SnO2 monitored by absorption spectral measurements demonstrated that 94.48% of the selected dye was degraded upon irradiation with UV light for 60 min. (C) 2012 Elsevier B.V. All rights reserved.
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