A facile and environmentally friendly surface-ion adsorption method using CeCO₃OH@C as template was demonstrated to synthesize CeO₂-LaFeO₃ perovskite composite material. The obtained composite was characterized by X-ray diffraction (XRD), fourier transform infrared spectra (FT-IR), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), thermo-gravimetric a...

The fundamental interactions of dimethyl methylphosphonate (DMMP) and dimethyl chlorophosphate (DMCP) on amorphous silica nanoparticles have been investigated with transmission infrared spectroscopy and temperature-programmed desorption (TPD). DMMP and DMCP both adsorb molecularly to silica through the formation of hydrogen bonds between isolated silanols and the phosphoryl oxygen of the adsorb...

Rhizomucor tauricus, an industrial fungus, was immobilized in sodium alginate and used as adsorbent for the removal of nickel from aqueous solutions. The biosorption capacity of Ni(II) was found to be 394 mg/g of immobilized biomass. It was observed that an increase in pH from 3 to 6 increased the percent adsorption, and an increase in liquid-to-solid ratio from 2 to 10 increased the metal upta...

Key words: mineral/water interface, reduced Fe minerals, natural attenuation To address the potential for abiotic natural attenuation of chromate, we have studied the kinetics and mechanism of chromate removal in the presence of hydroxycarbonate green rust. The kinetics of chromate removal were studied in batch systems to evaluate the effect of green rust surface area and pH. The rate of chroma...

In this study, we proposed an innovative oxidation–absorption method for low-temperature denitrification (160–240 ◦C), in which NO is initially catalytically oxidized by hydrogen peroxide (H2O2) vapor over titania-based catalysts, and the oxidation products are then absorbed by NaOH solution. The effects of flue gas temperature, molar H2O2/NO ratio, gas hourly space velocity (GHSV), and Fe subs...

Low cost MgO has an attractive theoretical CO2 capture capacity of 1090 mg/g when it is in equilibrium with MgCO3, but only ~ 1–10% this predicted absorption limit realized experimentally. Changes structure that dominate the experimental carbon process remain unclear. Here, we simulate adsorption on comparative and Mg(OH)2 surfaces, using a combined theory approach. Subsequently, role H2O molec...

A 3D inorganic-organic hybrid proton conductor, [Sm(H2O)5(CO2CH2NH3)2][Al(OH)6Mo6O18]·10H2O (), has been synthesized by using coordination cations, [Sm(H2O)5(gly)2](3+) (gly = (-)CO2CH2NH3(+)), and polyanions, [Al(OH)6Mo6O18](3-) ([AlMo6]). The polyanions ([AlMo6]) and the coordination cations ([Sm(H2O)5(gly)2](3+)) stack to form a 3D supramolecular network structure containing 1D channels alon...

Soluble, monomeric Ir(III/IV) complexes strongly affect the photoelectrochemical performance of IrO(x)·nH2O-catalyzed photoanodes for the oxygen evolution reaction (OER). The synthesis of IrO(x)·nH2O colloids by alkaline hydrolysis of Ir(III) or Ir(IV) salts proceeds through monomeric intermediates that were characterized using electrochemical and spectroscopic methods and modeled in TDDFT calc...

The development of low-cost yet highly efficient catalysts for hydrogen evolution reaction (HER) is crucial large-scale clean and sustainable production from water splitting. Tuning the interfacial structure catalyst has emerged as an effective strategy to optimize intrinsic catalytic activity. In this study, we demonstrated deposition Ru nanoparticles by freshly prepared strong reductive Ti(II...

Photocatalytic hydrogen production via water splitting using a noble metal on TiO2 is technology that has developed rapidly over the past few years. Specifically, palladium doped irradiated with near-UV or alternatively visible light shown promising results. With this end in mind, strategically designed experiments were Photo-CREC Water-II (PCW-II) Reactor 0.25 wt.% Pd-TiO2 under and light, eth...