Influence of preparation method and nitrogen (N) doping on properties and photo-catalytic activity of mesoporous SrTiO3

被引：49

作者：

Atkinson, I. ^{[1
]}

Parvulescu, V. ^{[1
]}

Cusu, J. Pandele ^{[1
]}

Anghel, E. M. ^{[1
]}

Voicescu, M. ^{[1
]}

Culita, D. ^{[1
]}

Somacescu, S. ^{[1
]}

Munteanu, C. ^{[1
]}

Scepanovic, M. ^{[2
,3
]}

Popovic, Z. V. ^{[2
,3
]}

Fruth, V. ^{[1
]}

机构：

[1] Romanian Acad, Ilie Murgulescu Inst Phys Chem, Bucharest 060021, Romania

[2] Inst Phys, Ctr Solid State Phys & New Mat, Belgrade, Serbia

[3] Serbian Acad Arts & Sci, Knez Mihailova 35, Belgrade 11001, Serbia

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2019年 / 368卷

关键词：

Hydrothermal synthesis; Nitrogen doped; Photocatalysis; Sol-gel method; SrTiO3; CO-DOPED SRTIO3; PHOTOCATALYTIC ACTIVITY; HYDROTHERMAL SYNTHESIS; THIN-FILMS; DEGRADATION; ORANGE; DRIVEN; PHOTODEGRADATION; NANOPARTICLES; SPHERES;

D O I：

10.1016/j.jphotochem.2018.09.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nitrogen (N)-doped SrTiO3/pristine SrTiO3 powders were synthesized by three different methods namely hydrothermal, sol-gel route and solid state reaction respectively. The influence of synthesis route, thermal treatment atmosphere and N doping on the properties and photo-catalytic efficiency of the prepared samples was analyzed. The investigation shows that N doping causes the narrowing of the band gap with about 1 eV. The synergy of the structure, texture and morphology and especially N doping explains high methyl orange (MO) degradation efficiency of 100% within 1 h of irradiation for the N doped SrTiO3 obtained by sol-gel route with the aid of non-ionic triblock copolymer (Pluronic P123) as a structure-directing and thermally treated under nitrogen atmosphere.

引用

页码：41 / 51

页数：11

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