Adjustable band position of strontium titanate by doping-free solvents effect and its correlation with photodegradation performance View Full Text


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Article Info

DATE

2017-07-13

AUTHORS

Juan Xie, Yawen He, Xian Li, Ming Duan, Junlei Tang, Yingying Wang, Mohamad Chamas, Hu Wang

ABSTRACT

Strontium titanate (STO) with shape of nanosheet, polyhedron and nanosphere is prepared by one-pot solvothermal method using ethanolamine (EA), diethanolamine (DA) and ethylene glycol (EG), respectively. Upon the different crystalline size and morphology of STO, effect of solvents on nucleation and growth is discussed. In this case, energy band and flat band potential of samples are measured by UV–Vis diffuser reflectance (DRS) and Mott-Schottky (MS). Results show narrow energy band (Eg) 2.68, 2.87 and 3.17 eV of as-synthesized pure STOs (EA-STO, DA-STO and EG-STO) compared with empirical STO. Simultaneously, valence band shows 0.55, 1.80 and 2.21 eV respectively. Rhodamine B (RhB) and methyle orange (MO) are selected as anionic and cationic target contaminants. Correlation of photodegradation performance and valence band is depicted. More... »

PAGES

14981-14987

References to SciGraph publications

  • 2016-02-10. Simultaneous photodegradation of two textile dyes using TiO2 as a catalyst in REACTION KINETICS, MECHANISMS AND CATALYSIS
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    http://scigraph.springernature.com/pub.10.1007/s10854-017-7371-y

    DOI

    http://dx.doi.org/10.1007/s10854-017-7371-y

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