Results 31 to 40 of about 193,377 (304)

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

Thermodynamics of gas–liquid colloidal equilibrium states: hetero-phase fluctuations [PDF]

open access: yes, 2019
Following on from two previous JETC (Joint European Thermodynamics Conference) presentations, we present a preliminary report of further advances towards the thermodynamic description of critical behavior and a supercritical gas-liquid coexistence with a
Andrews   +5 more
core   +1 more source

Simple model of adsorption on external surface of carbon nanotubes: a new analytical approach basing on molecular simulation data [PDF]

open access: yes, 2010
Nitrogen adsorption on carbon nanotubes is wide- ly studied because nitrogen adsorption isotherm measurement is a standard method applied for porosity characterization.
A. Wongkoblap   +61 more
core   +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

Extracting physical chemistry from mechanics: a new approach to investigate DNA interactions with drugs and proteins in single molecule experiments

open access: yes, 2015
In this review we focus on the idea of establishing connections between the mechanical properties of DNAligand complexes and the physical chemistry of DNA-ligand interactions.
Rocha, M. S.
core   +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

Optimal thermodynamic control in open quantum systems [PDF]

open access: yes, 2018
We apply advanced methods of control theory to open quantum systems and we determine finite-time processes which are optimal with respect to thermodynamic performances.
Carlini, Alberto   +3 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

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