Catalyst synthesis and morphology characterization FeSA/FeAC−2DNPC was synthesized via pyrolyzing a mixture of N-doped carbon quantum dots (CQD) and TPI (a Fe(II)-phenanthroline complex) using ice/silica dual templates. In brief, CQD was synthesized by acid-leaching half-carbonized zeolite im...
same mobile phase and flow rate. Partition coefficient,Kavwas obtained by the following equation:Kav(Ve−V0)/(Vc−V0), whereV0,Vc, andVeare column void volume, geometric column volume, and eluent volume, respectively. Physical and functional stoichiometry of nanochelators To calculate the ...
The peroxide yields (H2O2%) were calculated from the ring current (Ir) and the disk current (Id) using the equation [Eqs. 1 and 2]: ÀÁ H2O2% ¼ 200 ´ Ir= Ir þ NId ð1Þ The electron transfer number (n) in acid was calculated by the equation: ÀÁ n ¼ 4Id...
In the first step, red blood cells are lysed to release haemoglobin, In the second, the haem iron in the haemoglobin is oxidised from the ferrous to the ferric state, coordinating one hydroxide ion and one water molecule as an axial ligand to form monoaquomonohydroxyferri-porphyrin as the ...
Some microbes (e.g., Micrococcus lactilyticus) can even use molecular hydrogen (H2) to reduce ferric hydroxide and ferricyanide [36,56]. Metabolic studies of glucose in sediments with Fe(III) as the electron acceptor for respiration showed that glucose was fermented first to organic acids (...
Sugimoto, T.; Matijević, E. Formation of uniform spherical magnetite particles by crystallization from ferrous hydroxide gels.J. Colloid Interface Sci.1980,74, 227–243. [Google Scholar] [CrossRef] Martinez-Boubeta, C.; Simeonidis, K.; Serantes, D.; Conde-Leborán, I.; Kazakis, I.;...
In this pH range, the solubility of iron is minimal, fluoride is negatively charged and the surface of Fe67o5x5ide-hydroxide positively charged. The concentration of dissolved anionic species (e.g., Cl−, HCO3−, NO3−, PO43−, SO42−), added, for example, as sodium salts, ...
interface. After carbonation, the plate-like calcium hydroxide and needle-rod ettringite parti cles disappear, yielding calcium carbonate, as shown in Figure 23. The size of the larg hole in the concrete structure decreases, and the internal structure of the entire system i adjusted to increase ...
For the Y-type zeolite, the synthesis was performed by adding the colloidal silica under vigorous stirring to the sodium aluminate previously dissolved in the aqueous solution of sodium hydroxide. The obtained gel was then placed into a Teflon-lined stainless-steel autoclave, sealed and kept at ...