Results 11 to 20 of about 54,647 (267)

Removal Efficiency of Textile Dyes from Aqueous Solutions Using Calcined Waste of Eggshells as Eco-friendly Adsorbent: Kinetic and Thermodynamic Studies [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2021
This research investigates the removal of textile dyes (Rhodamine B and Alizarin Red S) from aqueous solution by a low-cost adsorbent prepared from eggshell waste.
R. Slimani   +8 more
doaj   +1 more source

Removal of Cd and Pb with biochar made from dairy manure at low temperature

open access: yesJournal of Integrative Agriculture, 2019
Biochar (BC) derived from waste products is a cost-effective sorbent for remediation of metal-contaminated soils. We studied the kinetics and adsorption mechanisms for removal of metal ions, such as lead (Pb2+) and cadmium (Cd2+) with biochar.
Zhi-liang CHEN   +5 more
doaj   +1 more source

The “Isothermal Layer” [PDF]

open access: yesNature, 1912
I AM inclined to doubt whether Commander Hepworth's suggestion (NATURE, January 25) that the so-called isothermal layer is simply due to radiation from the material, solid or gaseous, which circulates round the sun with an orbital motion and gives rise to the zodiacal light, can be reconciled with the configuration of the surfaces of equal temperature ...
openaire   +2 more sources

Experimental Modelling Studies on the removal of crystal violet, methylene blue and malachite green dyes using Theobroma cacao (Cocoa Pod Powder). [PDF]

open access: yesJournal of Chemistry Letters, 2021
The adsorption characteristics of basic dyes (crystal violet, CV), (methylene blue, MB) and (malachite green, MG) using Theobroma cacao (Cocoa pod powder), an alternative adsorbent were evaluated.
Daniel Omokpariola
doaj   +1 more source

The biosorption potential of waste biomass young fruit walnuts for lead ions: Kinetic and equilibrium study [PDF]

open access: yesHemijska Industrija, 2016
The biosorption potential of waste biomass young fruit walnuts (YFW) as a low-cost biosorbent, processed from liqueur industry, for Pb(II) ions from aqueous solution was explored.
Marković Dragana Z.   +3 more
doaj   +1 more source

The High Performance of Multi-Metal Layered Double Hydroxides (LDHs) in the Removal of Organic Dyes

open access: yesChemistry Proceedings, 2023
In this work, both MgNiAl-LDH and MgNiFe-LDH hydrotalcites were utilized to remove the anionic dye Congo red (CR) from an aqueous solution.
Soumaya Talbi   +6 more
doaj   +1 more source

Study of essential oils adsorption on three phosphate fertilizers [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2018
In this paper, we report the study of essential oils adsorption on three phosphate fertilizers: monoammonium phosphate (MAP), diammonium phosphate (DAP) and triple superphosphate (TSP), with the aim to prepare a bifunctional product which can be used as ...
Benali Nejib   +4 more
doaj   +1 more source

Isothermal and non‐isothermal consolidation of carbon fiber towpregs [PDF]

open access: yesPolymer Composites, 2001
AbstractThe purpose of this work is to establish and validate a model to predict the isothermal and non‐isothermal consolidation behavior of unidirectional towpregs, made of carbon fibers and a thermoplastic polymer. A Finite Difference Method program was devised based on a set of analytical expressions developed in a previous work.
Nunes, J. P.   +3 more
openaire   +2 more sources

Adsorption Analysis of Fluoride Removal Using Graphene Oxide/Eggshell Adsorbent

open access: yesIndonesian Journal of Chemistry, 2020
Graphene oxide with eggshells (GO/ES) adsorbent has been studied for fluoride ions (F–) removal. An adsorption study was conducted in batch experiments at different adsorption parameters, which are initial F– concentration, contact time, and temperature.
Norhusna Mohamad Nor   +3 more
doaj   +1 more source

Cooperativity in Sorption Isotherms

open access: yesLangmuir, 2023
We present a general theory of cooperativity in sorption isotherms that can be applied to sorbent/gas and sorbent/solution isotherms and is valid even when sorbates dissolve into or penetrate the sorbent. Our universal foundation, based on the principles of statistical thermodynamics, is the excess number of sorbates (around a probe sorbate), which can
Seishi Shimizu, Nobuyuki Matubayasi
openaire   +3 more sources

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