Biochar-based carbonaceous adsorbents are gaining interest due to their high availability, ease of modification, and low cost; however, they show limited adsorption CO2 in flue gas common textural properties. In this study, TEPA-modified biochar was used prepare a solid amine adsorbent for the efficient capture gas. First, porous prepared with FeCl3, Mg(NO3)2, H2O (g) as activators walnut shell...

This paper reports the evaluation of adsorbing Cr (VI) ions on sorbent prepared from chitosan (CHT), a versatile derivative of chitin, and dodecyl amine modified locally available kaolinite clay (Bijoypur clay) (MC) that has excellent mechanical properties and great resistance to chemical and biological attack. The effect of the initial metal ion concentration, solution pH, contact time, and ad...

Amine-modified mesoporous SBA-15 adsorbent has been prepared by impregnation method using tetraethylenepentamine. The samples of this modified SBA-15 have been characterized by small angle X-ray scattering (SAXS), Scanning electron microscopy (SEM), Nitrogen adsorption-desorption isotherm and FT-IR. The adsorption capacity of CO2 on unmodified and modified samples were measured at high pressure...

methoxy polyethylene glycol modified magnetite nanoparticles (pegmns) were synthesized and were characterized by scanning electron microscopy (sem), vibrating sample magnetometer (vsm), and x-ray diffraction (xrd) . the adsorption of diazinon onto (pegmns) was investigated by uv spectrophotometry at 236 nm, through batch experiments. the effects of adsorbent dosage, solution ph, contact time, s...

A novel kind of hydrochar adsorbent, modified by CuO-ZnO and derived from chitosan or starch, was synthesized for H2S adsorption. The prepared adsorbent characterized BET, XRD, EDX, SEM, XPS. results showed that the contained many amino groups as functional groups, nanometer metal oxide particles had good dispersion on surface hydrochar. maximum sulfur capacity reached 28.06 mg/g-adsorbent unde...

   A method for treating fuel oil and waste water of power plant is suggested which is including vanadium elimination through contacting with humic acid coated magnetic nano-adsorbent. The nano-adsorbent was modified with humic acid (HA) as a compound having carboxyl, hydroxyl and amin functional groups. HA/Fe3O4 nanoparticles were prepared by a co-precipitation procedure and were character...

in this study, removal of methylene blue (mb) and maxilon blue sl 200% (mb sl) dyes from aqueous solutions by using raw clay (rc) of nevsehir (turkey) vicinity and ultrasonic-acid modified clay (mc) was investigated. adsorption was carried out with 500 mg/l mb and 50 mg/l for mb sl in terms of different adsorbent dosages, contact time, solution ph, temperature and stirring speed. the fitting of...