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The reactivity of a Fe–Ti–O mixed oxide under different atmospheres: study of the interaction with simple alcohol molecules
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In this paper, the reactivity of the mixed system was studied both at atmospheric pressure and in vacuum conditions and compared with that of the pure oxides (TiO2 and Fe2O3).Abstract:
In this paper, the interaction between simple alcohols (methanol to 1-butanol) and a Fe–Ti mixed oxide was investigated. The reactivity of the mixed system was studied both at atmospheric pressure and in vacuum conditions and compared with that of the pure oxides (TiO2 and Fe2O3). To understand the influence of the oxygen presence in the reaction mixture, the reactivity was investigated both in inert gas as well as in oxygen atmosphere. X-ray photoelectron spectroscopy (XPS) and quadrupole mass spectrometry (QMS) have been used for the experiment in high vacuum (HV), while Fourier transform infrared spectroscopy (FTIR) and QMS have been used for the experiment in rough vacuum and under atmospheric pressure conditions. The characterisation of the sample by means of XPS, X-ray diffraction and IR spectroscopy preceded the reactivity study. When compared with Fe2O3, the Fe–Ti–O mixed oxide seems to be less reactive with respect to the alcohols; the interaction between alcohol and surface is mainly molecular, as in the case of TiO2. Moreover, the oxidising power of the mixed oxide is lower than that of Fe2O3 (only traces of carbonic compounds are evident).read more
Citations
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Effect of manganese substitution on the structure and activity of iron titanate catalyst for the selective catalytic reduction of NO with NH3
TL;DR: In this article, the selective catalytic reduction (SCR) of NO with NH3 over manganese substituted iron titanate catalysts was investigated and the Mn substitution amounts showed obvious influence on the catalyst structure, redox behavior and NH3/NOx adsorption ability of the catalysts.
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Preparation and evaluation of a novel Fe-Mn binary oxide adsorbent for effective arsenite removal
TL;DR: The results indicated that phosphate was the greatest competitor with arsenic for adsorptive sites on the adsorbent and was effective for both As(V) and As(III) removal, particularly the As( III).
Journal ArticleDOI
Structure-Activity Relationship of Iron Titanate Catalysts in the Selective Catalytic Reduction of NOx with NH3 †
Fudong Liu,Hong He +1 more
TL;DR: A series of iron titanate catalysts with different Fe−Ti molar ratios were synthesized via a facile coprecipitation method and tested for the selective catalytic reduction (SCR) of NOx in this article.
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Adsorptive removal of phosphate by a nanostructured Fe–Al–Mn trimetal oxide adsorbent
TL;DR: A nanostructured Fe-Al-Mn trimetal oxide adsorbent for phosphate removal with a Fe:Al:Mn molar ratio of 3:3:1 was prepared using simultaneous oxidation and coprecipitation method as discussed by the authors.
Journal ArticleDOI
Preparation and evaluation of iron–chitosan composites for removal of As(III) and As(V) from arsenic contaminated real life groundwater
TL;DR: The adsorbent was successfully applied for the removal of total inorganic arsenic down to <10 microg/l from real life arsenic contaminated groundwater samples.
References
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High-Resolution X-Ray Photoemission Spectrum of the Valence Bands of Gold
TL;DR: In this paper, high-resolution gold-valence-band photoemission spectra were obtained by the use of monochromatized k-ensuremath-alpha (kα) radiation and a single-crystal specimen.
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Practical Surface Analysis
David Briggs,Martin P. Seah +1 more
TL;DR: In this paper, the authors used the carbon C 1s peak at 285 eV as a reference for charge correction in XPS analyses of samples prepared outside the high vacuum chamber relatively thick carbon layers are formed on the surfaces.
Journal ArticleDOI
Infrared and Raman spectra of polyatomic molecules
TL;DR: In this article, the authors present a series on molecular spectra and molecular structure, and a large number of tables have also been included in which theoretical results are summarized, or observed data collected, for the benefit of those carrying out research work in the field of infrared and Raman spectra or related fields.