Results 21 to 30 of about 239,233 (332)

Adsorption Analysis of Fluoride Removal Using Graphene Oxide/Eggshell Adsorbent

Indonesian 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, Nur Hidayahtul Nazrah Kamil, Amirul Izan Mansor, Hawaiah Imam Maarof   +3 more
doaj   +1 more source

Zeolite crystal layers coupled to piezoelectric sensors [PDF]

, 1991
Microporous zeolite crystals were successfully coupled onto the gold electrodes of quartz crystal microbalances (QCM). A self-assembled monolayer of thiol-alkoxysilane coupling agent on the gold surface was used as the interfacial layer to promote ...
Bein, Thomas, Yan, Yongan
core   +1 more source

On the use of the IAST method for gas separation studies in porous materials with gate-opening behavior

, 2018
Highly flexible nanoporous materials, exhibiting for instance gate opening or breathing behavior, are often presented as candidates for separation processes due to their supposed high adsorption selectivity.
Boutin, Anne, Coudert, François-Xavier, Fraux, Guillaume, Fuchs, Alain H.   +3 more
core   +1 more source

Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media [PDF]

, 2005
The aim of this work is to show the importance of the sorption isotherms in the study of the heat and mass fluxes in unsaturated porous media. General forms of the heat and mass fluxes are presented in terms of experimentally accessible quantities.
Reis, A. Heitor, Rosa, Rui
core   +1 more source

Destabilization of free convection by weak rotation [PDF]

, 2011
This study offers an explanation of a recently observed effect of destabilization of free convective flows by weak rotation. After studying several models where flows are driven by a simultaneous action of convection and rotation, it is concluded that ...
A. Yu. Gelfgat, Akamatsu, Chandrasekhar, Chen, Gelfgat, Gelfgat, Gorbachev, Koschmieder   +7 more
core   +2 more sources

Biosorption of Lead (Pb) Metal using Immobilized Pseudomonas putida: Kinetic Analysis and Langmuir-Freundlich Adsorption Isotherm

Berkala Sainstek
Heavy metal Pb(II) contamination in industrial wastewater requires effective and environmentally friendly remediation technologies. This research aims to evaluate biosorbent performance for Pb(II) removal through kinetic and adsorption isotherm analysis.
Khairunnisa, Rahmahtriananda Faradilla, Ahmad Moh. Nur   +2 more
doaj   +1 more source

Adsorção de selênio em latossolos Selenium adsorption in oxisols

Revista Brasileira de Ciência do Solo, 2008
A retenção de Se pelos colóides do solo constitui importante processo para a manutenção da sanidade ambiental. A informação sobre a adsorção de Se em solos altamente intemperizados é restrita e existem poucos padrões quantitativos disponíveis para a ...
Ernesto Rinaldi Mouta, Wanderley José de Melo, Marcio Roberto Soares, Luis Reynaldo Ferracciú Alleoni, José Carlos Casagrande   +4 more
doaj   +1 more source

Absorption of Cu(II) and Zn(II) from Aqueous Solutions onto Biochars Derived from Apple Tree Branches

Energies, 2020
The aim of this study was to investigate the adsorption of Cu(II) and Zn(II) onto apple tree branches biochar (BC) produced at 300, 400, 500 and 600 °C (BC300, BC400, BC500, and BC600), respectively. The effect of adsorbent dosage, pH value, contact time,
Shixiang Zhao, Na Ta, Xudong Wang
doaj   +1 more source

Polyvinyl Alcohol Assisted Iron–Zinc Nanocomposite for Enhanced Optimized Rapid Removal of Malachite Green Dye

Nanomaterials, 2023
Eliminating hazardous contaminants is a necessity for maintaining a healthy environment on Earth. This work used a sustainable method to create Iron–Zinc nanocomposites with polyvinyl alcohol assistance.
Muhammad Saad, Hajira Tahir, Seher Mustafa, Osama A. Attala, Waleed A. El-Saoud, Kamal A. Attia, Wessam M. Filfilan, Jahan Zeb   +7 more
doaj   +1 more source

Effects of confinement between attractive and repulsive walls on the thermodynamics of an anomalous fluid

, 2016
We study by molecular dynamics simulations the thermodynamics of an anomalous fluid confined in a slit pore with one wall structured and attractive and another unstructured and repulsive.
Franzese, Giancarlo, Leoni, Fabio
core   +1 more source