Topic
BET theory
About: BET theory is a research topic. Over the lifetime, 9046 publications have been published within this topic receiving 286142 citations.
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TL;DR: In this paper, a low surface area silica was used to support the preparation of nickel metal nanoparticles for hydrogenation of benzene, and the catalysts were characterized by atomic absorption, XRD, TEM, BET surface area, and H 2 chemisorption and TPD.
132 citations
TL;DR: In this paper, the preparation of activated carbons from Euphorbia rigida by chemical activation with different impregnation agents and ratios was studied, where ZnCl2, K2CO3, NaOH and H3PO4 were used as chemical activation agents.
132 citations
TL;DR: In this article, a bimetallic Fe-Zn nanoparticle was synthesized via a coprecipitation method and applied for the adsorptive removal of carcinogenic dye malachite green (MG) and Congo red (CR) in water.
132 citations
15 Sep 2016
TL;DR: Copper(II) oxide nanoparticles were synthesized at low temperature using cold finger assisted magnetron sputtering technique and were applied as adsorbent for the rapid removal of noxious Cr(VI) ions from the solvent phase and were in good agreement with the pseudo second order kinetic behaviour.
Abstract: Copper(II) oxide nanoparticles were synthesized at low temperature using cold finger assisted magnetron sputtering technique and were applied as adsorbent for the rapid removal of noxious Cr(VI) ions from the solvent phase. The average size of CuO nanoparticles from TEM analysis was found to be 8 nm in addition to this the BET surface area (84.327 m2/g) was found to be significantly high in comparison to the previously CuO nanoparticles synthesized via green route. The synthesized CuO nanoparticles is crystalline in nature and exhibits monoclinic phase, which was confirmed using various analytical techniques such as SAED, XRD and Raman analysis. The impact of influential parameters including pH, adsorbent dose, contact time, stirring speed, initial Cr(VI) ions concentration, and temperature were optimized using batch adsorption method in order to obtain maximum removal of Cr(VI) ions. From the thermodynamic parameters, the positive value of enthalpy (ΔH) and negative value of Gibbs free energy (ΔG) indicate the endothermic and spontaneous nature of Cr(VI) ions adsorption, respectively. The adsorption kinetics data was well fitted and found to be in good agreement with the pseudo second order kinetic behaviour.
131 citations
TL;DR: In this paper, the catalytic hydrotreatment of Kraft lignin using sulfided NiMo and CoMo catalysts on different acidic and basic supports (Al2O3, ZSM-5, activated carbon (AC) and MgO-La2O 3) was studied in the absence of a solvent.
131 citations