Results 41 to 50 of about 14,190 (269)
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh +4 more
wiley +1 more source
Carbon Membranes Prepared from Poly (Furfuryl Alcohol–Furfural) Precursors: Effect of FeCl3 Additive
Thermosetting resins, such as poly (furfuryl alcohol), are efficient precursors for preparation of carbon membranes with molecular sieving properties. Polymerization of furfuryl alcohol is catalyzed by Bronsted or Lewis acids.
Areti Zaharopoulou +2 more
doaj +1 more source
Gas phase selective hydrogenation of furfural to furfuryl alcohol and 2-methylfuran over Cu-CeO2 coprecipitated catalysts [PDF]
Furfural is an important chemical derived from lignocellulosic biomass, in particular from C5 sugars like xylose, and it is considered as a platform molecule of great potential for the synthesis of a broad spectrum of chemicals.
Cecilia, Juan Antonio +5 more
core
Electrosynthesis of Bioactive Chemicals, From Ions to Pharmaceuticals
This review discusses recent advances in electrosynthesis for biomedical and pharmaceutical applications. It covers key electrochemical materials enabling precise delivery of ions and small molecules for cellular modulation and disease treatment, alongside catalytic systems for pharmaceutical synthesis.
Gwangbin Lee +4 more
wiley +1 more source
Organic substances have been used for different wood treatments, especially impregnation procedures, aiming to improve certain wood properties. The objective of this study was to evaluate dimensional stability and colorimetric features for a mature pine
Andrey Pereira Acosta +6 more
doaj
The headspace solid phase microextraction (HS-SPME) technique has been recognized as a reliable technique for characterizing the aroma profile of Arabica coffee beans.
Lidwina Angelica Soetantijo +4 more
doaj +1 more source
Chromatographic techniques for the determination of free phenol in foundry resins [PDF]
Phenol is a toxic compound present in a wide variety of foundry resins. Its quantification is important for the characterization of the resins as well as for the evaluation of free contaminants present in foundry wastes.
Alvim-Ferraz, Maria da Conceição M. +3 more
core +1 more source
This study develops a phosphorus‐doped cobalt single‐atom catalyst that enhances high‐valent cobalt–oxo species generation for water purification. This atomic‐level tuning boosts the catalyst's activity by 3.5 times, enabling efficient pollutant degradation. A continuous‐flow reactor achieves high, long‐term removal efficiency, producing water with low
Wen‐Min Wang +4 more
wiley +1 more source
: The aqueous-phase hydrogenation of furfural to furfuryl alcohol using non-noble metal catalysts is constrained by the low activity of catalysts, necessitating high temperatures and high hydrogen pressures, and posing challenges in controlling furfuryl ...
Yanliang Yang +8 more
doaj +1 more source
Emission of BTEX and PAHs from molding sands with furan cold setting resins containing different contents of free furfuryl alcohol during production of cast iron [PDF]
At present, furan resin is the largest selling no-bake system of moulding sands. The most commonly used furan no-bake binders (FNB) are condensation products of furfuryl alcohol (FA) urea, formaldehyde and phenol.
Mariusz Holtzer +2 more
doaj

