Enhancement of visible-light-driven photoresponse of Mn-doped SnO2 quantum dots obtained by rapid and energy efficient synthesis

被引：52

作者：

Babu, B. ^{[1
]}

Kadam, A. N. ^{[2
]}

Rao, G. Thirumala ^{[3
]}

Lee, Sang-Wha ^{[2
]}

Byon, Chan ^{[4
]}

Shim, Jaesool ^{[1
]}

机构：

[1] Yeungnam Univ, Sch Mech Engn, Gyongsan 712749, South Korea

[2] Gachon Univ, Dept Chem & Biochem Engn, Seongnam City 461701, South Korea

[3] GMR Inst Technol, Phys Div, Dept Basic Sci & Humanities, Gmr Nagar 532127, Rajam, India

[4] UNIST, Sch Mech & Nucl Engn, Ulsan 44919, South Korea

来源：

JOURNAL OF LUMINESCENCE | 2018年 / 195卷

关键词：

Mn-doped SnO2; Quantum dots; Solution combustion synthesis; Visible photocatalysis; PHOTOCATALYTIC ACTIVITY; MAGNETIC-PROPERTIES; THIN-FILMS; OPTICAL-PROPERTIES; OXIDATION-STATE; TIN DIOXIDE; NANOPARTICLES; DEGRADATION; EPR; NI;

D O I：

10.1016/j.jlumin.2017.11.040

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页码：283 / 289

页数：7

共 50 条

[1] Tin dioxide as a photocatalyst for water treatment: A review [J].

Al-Hamdi, Abdullah M. ;

Rinner, Uwe ;

Sillanpaa, Mika .

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, 2017, 107 :190-205

[2] Influence of dopant concentrations (Mn=1, 2 and 3 mol%) on the structural, magnetic and optical properties and photocatalytic activities of SnO2 nanoparticles synthesized via the simple precipitation process [J].

Anandan, K. ;

Rajendran, V. .

SUPERLATTICES AND MICROSTRUCTURES, 2015, 85 :185-197

[3] Effect of Mn doping on the structural and optical properties of SnO2 nanoparticles [J].

Azam, Ameer ;

Ahmed, Arham S. ;

Habib, Sami S. ;

Naqvi, A. H. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 523 :83-87

[4] Enhanced visible light photocatalytic activity of Cu-doped SnO2 quantum dots by solution combustion synthesis [J].

Babu, B. ;

Kadam, A. N. ;

Ravikumar, R. V. S. S. N. ;

Byon, Chan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 703 :330-336

[5] Effect of cobalt concentration on morphology of Co-doped SnO2 nanostructures synthesized by solution combustion method [J].

Babu, B. ;

Reddy, Ch. Venkata ;

Shim, Jaesool ;

Ravikumar, R. V. S. S. N. ;

Park, Jinsub .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2016, 27 (05) :5197-5203

[6] Observation of Nano Sized Effect on EPR of Mn4+ and Cr3+ in SrTiO3 Powders [J].

Badalyan, A. G. ;

Azamat, D. V. ;

Trepakov, V. A. ;

Makarova, M. V. ;

Rosa, J. ;

Dejneka, A. ;

Jastrabik, L. .

FERROELECTRICS, 2015, 485 (01) :63-67

[7] The surface and materials science of tin oxide [J].

Batzill, M ;

Diebold, U .

PROGRESS IN SURFACE SCIENCE, 2005, 79 (2-4) :47-154

[8] Photocatalytic-degradation and reduction of organic compounds using SnO2 quantum dots (via a green route) under direct sunlight [J].

Bhattacharjee, Archita ;

Ahmaruzzaman, Md. .

RSC ADVANCES, 2015, 5 (81) :66122-66133

[9] Facile synthesis of SnO2 quantum dots and its photocatalytic activity in the degradation of eosin Y dye: A green approach [J].

Bhattacharjee, Archita ;

Ahmaruzzaman, M. .

MATERIALS LETTERS, 2015, 139 :418-421

[10]

Bin Cheng, 2004, J AM CHEM SOC, V126, P5972

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