Results 41 to 50 of about 498,084 (345)

Nitrogen-modified nanoporous activated carbon from eucalyptus leaves for ultrasound-assisted removal of basic dyes using derivative spectrophotometric method [PDF]

open access: yesJournal of the Serbian Chemical Society, 2018
The nanoporous activated carbon (AC) was prepared from the eucalyptus leaves via chemical activation with KOH, then treated with nitric acid/ /urea (NOAC) and finally used as a new adsorbent for simultaneous ultrasound- assisted removal of basic red 46 ...
Khaligh Aisan   +3 more
doaj   +1 more source

Use of hydrous titanium dioxide as potential sorbent for the removal of manganese from water

open access: yesJournal of Electrochemical Science and Engineering, 2014
This research article deals with an electrosynthesis of hydrous titanium dioxide by anodic dissolution of titanium sacrificial anodes and their application for the adsorption of manganese from aqueous solution.
Ramakrishnan Kamaraj   +2 more
doaj   +1 more source

Removal of parachlorophenol from the aquatic environment by recycled used tires as an adsorbent: Characterization, adsorption, and equilibrium studies [PDF]

open access: yesJournal of Advances in Environmental Health Research, 2014
Parachlorophenol has an extended usage in refineries, petrochemical industries, insecticide, and herbicide manufacturing industries. Tire a solid waste, which is disposed in large amounts each year, a large number of them in landfills can cause ...
Akbar Eslami   +6 more
doaj   +1 more source

Adsorption isotherm, kinetic modeling and mechanism of tetracycline on Pinus taeda-derived activated biochar.

open access: yesBioresource Technology, 2018
The objective of this study was to evaluate the adsorption of tetracycline (TC) on the Pinus taeda-derived activated biochar (BC). After NaOH activation, the well-developed porous surface structure was observed with a significantly increase in surface ...
H. Jang   +4 more
semanticscholar   +1 more source

Competitive adsorption of p-hydroxybenzoic acid and phenol on activated carbon : experimental study and modelling. [PDF]

open access: yes, 2013
The competitive adsorption of phenol and p-hydroxybenzoic acid (4HBA) has been investigated on activated carbon (AC) for a wide range of concentrations under unbuffered conditions. The results show a preferential adsorption of 4HBA which can be explained
Creanga-Manole, Carmen   +4 more
core   +1 more source

Liquid phase adsorption isotherm of nonyl phenol on activated carbon [PDF]

open access: yes, 2002
In this work, the excess adsorption isotherm of nonyl phenol was measured by a combination of conventional techniques but analysed by using Langmuirian-type monolayer adsorption theory.
Awang Bono   +2 more
core   +2 more sources

A Study of Forced Convection in Non-Newtonian Hybrid Nanofluids Embedded in a Heated Cylinder Within a Hexagonal Enclosure by Finite Element Method

open access: yesMathematics
Nanofluids have the proven capacity to significantly improve the thermal efficiency of a heat exchanging system due to the presence of conductive nanoparticles.
Md. Noor-A-Alam Siddiki   +4 more
doaj   +1 more source

Área superficial específica, porosidade da fração argila e adsorção de fósforo em dois latossolos vermelhos Specific surface área and porosity of the clay fraction and phosphorus adsorption in two rhodic ferralsols

open access: yesRevista Brasileira de Ciência do Solo, 2009
A porosidade da fração argila é muito importante para entendimento dos fenômenos físico-químicos que estão relacionados com a área superficial específica das partículas sólidas.
Raphael Maia Aveiro Cessa   +4 more
doaj   +1 more source

Discrete isothermic surfaces. [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1996
Discrete isothermic surfaces are defined as the maps \(F: \mathbb{Z}^2\to \mathbb{R}^3\) such that all elementary quadrilaterals of the surface have cross ratio \(-1\). It is shown that these discrete surfaces possess properties which are characteristic for smooth isothermic surfaces (Möbius invariance, dual surface).
Pinkall, Ulrich, Bobenko, Alexander
openaire   +1 more source

cheminfo/isotherm-analysis: v1.1.0

open access: yes, 2022
1.1.0 (2022-05-04) Features update common-spectrum and fix build ...
cheminfo-bot, Luc Patiny, Kevin Jablonka
core   +1 more source

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