Enhancement of visible-light-driven photoresponse of Mn-doped SnO2 quantum dots obtained by rapid and energy efficient synthesis
- Authors
- Babu, B.; Kadam, A. N.; Rao, G. Thirumala; Lee, Sang-Wha; Byon, Chan; Shim, Jaesool
- Issue Date
- Mar-2018
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Mn-doped SnO2; Quantum dots; Solution combustion synthesis; Visible photocatalysis
- Citation
- JOURNAL OF LUMINESCENCE, v.195, pp.283 - 289
- Journal Title
- JOURNAL OF LUMINESCENCE
- Volume
- 195
- Start Page
- 283
- End Page
- 289
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/4025
- DOI
- 10.1016/j.jlumin.2017.11.040
- ISSN
- 0022-2313
- Abstract
- Mn-doped SnO2 quantum dots (QDs) with different Mn concentrations were prepared by solution combustion synthesis. The crystallite size was under 5 nm was confirmed from XRD and HR-TEM. A considerable decrease in band gap energy was observed with the increase in Mn content. The PL spectra show orange emission at about 590 nm due to the ultra-small crystallite size and crystal defects of SnO2 QDs. The photocatalytic degradation of MO dye was measured under visible light irradiation using the Mn-doped SnO2 QDs as catalysts. 3 mol% Mn-doped SnO2 QDs showed the 17 times higher photocatalytic performance than SnO2 QDs within 240 min.
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Collections - 공과대학 > 화공생명공학과 > 1. Journal Articles
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