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Visible-light-absorbing Evonik P-25 nanoparticles modified with tungstophosphoric acid and their photocatalytic activity on different wavelengths
(Pergamon-Elsevier Science Ltd, 2016-11)
For the first time, Evonik P-25 nanoparticles were impregnated with tungstophosphoric acid (TPA) (30% w/w) and annealed at two different temperatures, 200 °C (P25-TPA-200) and 500 °C (P25-TPA-500) for 1 h. Samples were ...
Síntese, caracterização e atividade fotocatalítica na região de luz visível de fotocatalisadores a base titânia comercial (P25 Evonik) e ferro
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Engenharia Quimica, 2019)
Bioavailability of di-peptide DL-methionyl-DL-methionine in comparison to DL-methionine in weaned and growing pigs
(2018-07-01)
The relative bioavailability (RBV) of a dipeptide DL-methionyl-DL-methionine (DL-Met-Met) was compared with DL-methionine (DL-Met) in growing pigs (experiment 1; N-balance study) and in weaned pigs (experiment 2; performance ...
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein
(2021-09-01)
Context: Tables of nutrient requirements assist nutritionists to formulate acceptable feeds for broilers but do not consider the objective of a business, namely, to maximise economic returns. Aims: The objective of the ...
Stable isotopes to study sulfur amino acid utilization in broilers
(Cambridge Univ Press, 2020-08-01)
Nutritionists have been discussing whether the dietary supplementation of cyst(e)ine is required as a part of the dietarymethionine (Met)in thetotal sulfur amino acid (TSAA)requirement to achieve optimum performance in ...
Reduction of nitrate by heterogeneous photocatalysis over pure and radiolytically modified TiO2 samples in the presence of formic acid
(Elsevier Science, 2017-03)
Heterogeneous photocatalytic reduction of nitrate (2 mM) in the presence of formic acid (FA, 10 mM) using pure and modified TiO2 samples under UV–vis irradiation was performed at pH 3, and the evolution of the intermediate ...
Low-frequency ultrasound induces oxygen vacancies formation and visible light absorption in TiO 2 P-25 nanoparticles
(Elsevier, 2012-05)
Low-frequency ultrasound (LFUS) irradiation induces morphological, optical and surface changes in the commercial nano-TiO 2-based photocatalyst, Evonik-Degussa P-25. Low-temperature electron spin resonance (ESR) measurements ...
Simple TiO 2 Coatings by Sol–Gel Techniques Combined with Commercial TiO 2 Particles for Use in Heterogeneous Photocatalysis
(American Scientific Publishers, 2017-07)
TiO2 coatings were obtained by a combination of a sol?gel process with the addition of commercial TiO2 particles (Degussa-Evonik P25). Simple and composite (with P25) sols were deposited by dip-coating on glass plates ...