Abstract Gas adsorption at high pressures in porous solids is commonly quantified terms of the excess amount adsorbed. Despite wide spectrum adsorbent morphologies available, analysis isotherms has mostly focused on microporous materials and role mesoporosity remains largely unexplored. Here, we present supercritical CO 2 measured $$T=308$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathM...

Abstract The characteristics and diclofenac adsorption properties of a carbon adsorbent prepared from palm kernel shells were studied. via hydrothermal carbonization followed by an activation in nitrogen flow had mesoporous structure with homogenous pore distribution the specific surface area 131 m 2 g ?1 . Raman spectra showed formation graphene or graphite structures material during small num...

In this study, amine functionalized Kit-6 silica mesoporous magnetite nanocomposite (NH2-MMNC) was synthesized by chemical methods and used as an efficient and recoverable adsorbent for removal of Ponceau 4R, as a toxic dye, from aqueous solutions. The synthesized nanocomposites were characterized by XRD, FT-IR, BET and SEM instruments. The effect of various experimental parameters on the dye r...

The present study synthesizes a novel adsorbent by coating Fe3O4 magnetic nanoparticles with amino functionalized mesoporous silica. The FTIR spectrums indicate that silica has been successfully coated on the surface of Fe3O4 and 3-aminopropyl tri methoxysilane compound have been grafted to the surface of silica-coated Fe3O4. The XRD analysis shows the presence of magnetite phase with cubic spi...

Biomass based active adsorbent can be prepared by activation process to adsorb dyes. In this study, using macroalgae as raw material, the biomass activated carbon material was NaOH method methylene blue. The with high specific surface area (1238.491 m2 g?1) characterized BET, XRD, FTIR and XPS. effects of impregnation ratio, amount adsorbent, pH contact time on adsorption activity biochar MB we...

Abstract Fly ash as residue from coal combustion has potential for environmental applications an adsorbent water pollution treatment. Adsorption performance of fly depends on origin and chemical Modification by the treatment could increase adsorption capacity. In this paper, was alkali modified with NaOH solution at various concentrations (2 N, 4 6 10 N) a temperature 60 °C. The physical proper...

In this paper, the preparation of potassium carbonate modified SiO2-Al2O3 composite aerogel, carbonation characteristics K2CO3 and decarburization regeneration cycle were studied. The influence loading rate on CO2 adsorption was studied by using a fixed bed reactor, microstructure samples analyzed combining SEM BET. results show that during alkali fusion sintering Na2CO3, Si-O-Si Si-O-Al bonds ...