نتایج جستجو برای: pseudo second order kinetics model

تعداد نتایج: 3298622  

Ali Vatani Mehdi Mehrpooya, Sayed Mohammad Ali Moosavian

A type of novel hypercross-linked fiber adsorbent was obtained by sulfonation and cross-linking reaction of polypropylene fiber grafted styrene-divinylbenzene. The aim of the fiber sulfonation and cross-linking method was to prepare rigid three dimensional networks in the entire fiber and change the ion exchange capacity of fiber. The hypercross-linked fiber adsorbent possesses a principall...

Li Dongguang Zhang Yanli,

A type of novel hypercross-linked fiber adsorbent was obtained by sulfonation and cross-linking reaction of polypropylene fiber grafted styrene-divinylbenzene. The aim of the fiber sulfonation and cross-linking method was to prepare rigid three dimensional networks in the entire fiber and change the ion exchange capacity of fiber. The hypercross-linked fiber adsorbent possesses a principall...

2014
Firoz Ali Ansari Masood Alam

The efficiency of activated parthenium hysterophorous as an adsorbent for removing Pesticide mixture from water has been studied. Batch mode adsorption experiments have been conducted by varying pH, concentration, adsorbent dose and contact time. Pesticide removal was pH-dependent and found to be maximum at pH 2.0. The maximum removal of pesticides was achieved within 100 min after the start of...

   A magnetically recoverable adsorbent has been prepared by silica-coated magnetic nanoparticles through an amine functionality (ASMNPs). The ASMNPs were characterized by XRD, TEM, SEM, and FT-IR spectroscopy. It was used as an efficient and economical adsorbent for removing O, O-Diethyl O-[4-methyl-6-(propan-2-yl) pyrimidin-2-yl] phosphorothioate (diazinon) from...

Journal: :Water Air and Soil Pollution 2022

Abstract In this work, new magnetic bentonite-based adsorbents combined with different carbon sources, namely, reduced graphene oxide and multiwall nanotubes, were synthesized via co-precipitation method. The characterized using XRD, TGA, SEM, EDX, TEM, BET analysis techniques. then used to remove oil from aqueous solutions of water-in-oil emulsion by performing batch adsorption experiments. ex...

Journal: :BIO web of conferences 2021

In this article, a novel magnetic composite material obtained from alkaline pretreated spent coffee grounds was used for investigating of the sorption mechanism methylene blue, congo red and tannic acid aqueous solutions. order to clarify mechanisms were analyzed adsorption kinetics models (external internal diffusion; chemical (pseudo-first order, pseudo-second order); intraparticle diffusion)...

2015
P. B. Wagh

Mechanism of Indigo carmine dye adsorption on palm wood cellulose activated carbon (PWCAC) was studied. The use of low cost ecofriendly adsorbent has been investigated as an ideal alternative to the current expensive methods of removing dye from aqueous solution. The study is done by batch adsorption techniques. The quantitative adsorption kinetic and equilibrium parameter for indigo carmine dy...

Journal: :International journal of the Society of Materials Engineering for Resources 2022

Blast furnace (BF) slag, one of the by-products iron- and steel-making plants, was converted into product including hydrogarnet using alkali fusion method for HCl gas removal. The slag with diameters less than 2 mm transformed alkali-fused reactive phases via sodium hydroxide at 600°C 6 h, after which fused added to distilled water stirred room temperature prepare precursor synthesize a by heat...

The present research describes the performance of NiO NPs/Ag-clinoptilolite composite adsorbent for the removal of uranium (U(VI)) ions from drinking water of Dezful city-Iran. Prior to the experiment reactions, Na-clinoptilolite was chemically treated with NaCl, Silver ions (Ag+) and subsequently Nickel (NiO) NPs to prepare NiO NPs/Ag-clinoptilolite. The samples were characterized by SEM, AAS,...

Chen Chen, Ting Cheng Yisu Shi Yuan Tian

The work focuses on the removing of Cu(II) from aqueous solution by Linde F(K) zeolite. The zeolite is synthesized from fly ash by hydrothermal process. The adsorption experiments discuss several factors including the optimal solution pH, zeolite dosage, adsorption temperature, adsorption kinetics and adsorption isotherm equation. The results show that, the optima...

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