Results 31 to 40 of about 8,834 (191)

Evaluation of Lagergren Kinetics Equation by Using Novel Kinetics Expression of Sorption of Zn2+ onto Horse Dung Humic Acid (HD-HA)

open access: yesIndonesian Journal of Chemistry, 2016
Extraction and purification of humic acid from dry horse dung powder (HD-HA) was performed successfully and the purified HD-HA was then applied as sorbent to adsorb Zn2+.
Bambang Rusdiarso   +2 more
doaj   +1 more source

Use of the Lattice Model for the Description of Adsorption Isotherms of Organic Substances from Aqueous Solution

open access: yesAdsorption Science & Technology, 2001
A novel equation for describing Langmuir-type adsorption isotherms was suggested. This equation satisfies the asymptotic limit, being converted into the Freundlich or Langmuir equations in the extreme cases.
V.V. Kutarov, B.M. Kats
doaj   +1 more source

Unraveling Quantitative Sensing Mechanism and Predictive Molecular Metrics for High‐Performance OFET Amine Sensors

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel chloro boron subphthalocyanine/polymer blend OFET sensor achieving 0.005 ppb limit of detection for ammonia at room temperature and high selectivity against similar amines. An original theoretical framework is proposed to describe the sensing mechanism, relating analyte molecular volume and Lewis basicity to sensor ...
Kavinraaj Ella Elangovan   +6 more
wiley   +1 more source

A Machine Learning‐Driven Pore‐Scale Network Model Coupling Reaction Kinetics and Interparticle Transport for Catalytic Process Design

open access: yesAdvanced Science, EarlyView.
Designing catalytic processes in porous reactors requires resolving coupled multiscale reaction–transport phenomena. We develop a machine‐learning‐accelerated pore‐scale dual‐network model with kinetics (DNMK), which captures reaction kinetics, pore‐scale transport, and reactor‐level behavior.
Ming‐Liang Qu   +10 more
wiley   +1 more source

ADSORPTION OF HYDROGEN ON FRACTAL SURFACES

open access: yesКонденсированные среды и межфазные границы, 2017
Solid-state fractal structures, or aggregates have fractional metric dimension values and have the property of self-similarity over multiple spatial scales.
Rekhviashvili Sergo, Murga Zurida Vl.
doaj   +1 more source

Remoção de azul de metileno de solução aquosa usando zeólitas sintetizadas com amostras de cinzas de carvão diferentes Removal of methylene blue from aqueous solution using zeolite synthesized from different coal fly ashes samples

open access: yesQuímica Nova, 2009
Batch sorption experiments were carried out to remove methylene blue from its aqueous solutions using zeolites synthesized from fly ashes as an adsorbent. The adsorbents were characterized by XFR, XRD and SEM.
Denise Alves Fungaro, Mariza Bruno
doaj   +1 more source

Boron Nitride Reinforced Supramolecular Gels Nano‐Assembled with Fungicides toward Soil‐Borne Fungal Disease Management

open access: yesAdvanced Science, EarlyView.
This work demonstrates of 2D material‐mediated stimuli‐responsive transport in soft matter systems, pioneers a new class of nano‐bridged carriers with mechanically strengthening and programmable permeability characteristics designed to overcome persistent barriers in soil‐borne disease management.
Li Hao   +9 more
wiley   +1 more source

The Adsorption of Zn(II) Ions onto Chitin: Determination of Equilibrium, Kinetic and Thermodynamic Parameters

open access: yesAdsorption Science & Technology, 2008
The adsorption of zinc(II) ions from aqueous solutions onto chitin was investigated as a function of the initial pH, temperature and initial metal ion concentration of the solutions concerned.
N. Nacer Kocer, G. Uslu, Y. Cuci
doaj   +1 more source

Two‐Dimensional La2CoO4 Perovskite Oxide Enabled by Phonon‐Resonance‐Driven Exfoliation for High‐Performance Gas Sensing

open access: yesAdvanced Science, EarlyView.
Few‐layer La2CoO4 nanosheets are produced via phonon‐resonance‐assisted cleavage of the rock‐salt layers in the Ruddlesden‐Popper structure under the 20 kHz resonance condition, enabling controlled exfoliation into ultrathin sheets. The nanosheets show improved gas‐sensing capability, delivering an 86.67% response to 1 ppm NO2 at room temperature ...
Yi Liang   +13 more
wiley   +1 more source

Preparation and Pb(II) Adsorption Properties of Crosslinked Pectin-Carboxymethyl Chitosan Film

open access: yesIndonesian Journal of Chemistry, 2015
A modified pectin has been synthesized by reacting/combining -OH group among pectin and chitosan with BADGE (Bisphenol A diglycidyl ether) crosslinker agent.
Budi Hastuti   +3 more
doaj   +1 more source

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