Synthesis and enhanced photocatalytic activity of molybdenum, iron, and nitrogen triple-doped titania nanopowders
作者： Nursev Erdogan , Jongee Park , Abdullah Ozturk
DOI: 10.1016/J.CERAMINT.2016.07.158
关键词: X-ray photoelectron spectroscopy 、 Anatase 、 Inorganic chemistry 、 Band gap 、 Materials science 、 Nuclear chemistry 、 Scanning electron microscope 、 Rutile 、 Dopant 、 Photocatalysis 、 High-resolution transmission electron microscopy
摘要: Abstract A novel Mo, Fe, and N triple-doped rutile TiO 2 nanopowder was synthesized with simple HNO 3 assisted hydrothermal treatment. Powders were characterized by using x-ray diffraction (XRD), photoelectron spectroscopy (XPS), inductively coupled plasma mass spectrometry (ICP-MS), scanning electron microscopy (FESEM), high resolution transmission (HRTEM), Brunauer-Emmett-Teller (BET) surface area analysis techniques. Mo doping initiated the formation of a structure composed mixture anatase some modifications in morphology; but titania powders are entirely structures. XPS confirmed that dissolved structure, replacing Ti atoms forming MoO partially crystallized nano regions on surface. Existence Fe crystal lattice ICP analysis. had an influence morphology. found to be co-doped catalyzer autogenously. Methylene blue degradation testing band gap measurements performed UV–vis photospectroscopy diffuse reflector apparatus order evaluate photocatalytic performance powders. Dopant elements decreased energy steadily. An enhanced photoactivity reached triple-doping as compared undoped, mono doped under UV-light irradiation. Possible reasons for enhancement activity outlined.
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