Results 51 to 60 of about 5,238 (206)

Transform of Kaolinite in Iraqi Kaolin Clay to Halloysite by Intercalation Reaction

open access: yesIraqi Geological Journal, 2023
The kaolinite of the Duikhala Deposite in the Iraqi Western Desert underwent intercalation with potassium acetate (KAc) and was subsequently washing with water several times.
Omar Al-Adwane   +2 more
doaj   +1 more source

Halloysite nanotubes in polymer science: purification, characterization, modification and applications

open access: yesNanotechnology Reviews, 2020
Halloysite nanotubes (HNTs) are natural tubular materials, which show a number of attractive advantages such as the unique micro-spatial structure, large length-diameter ratio, high lumen volume, nontoxicity and widespread.
Cheng Cong   +3 more
doaj   +1 more source

Electro-deposited halloysite nanotube/polyaniline nanocomposites for energy storage applications

open access: yesInternational Journal of Thermofluids, 2023
A nanocomposite (nanoclay/conductive polymer) was prepared by a template-free method for supercapacitor applications. Halloysite Nanotubes (HNTs) were used as a nanoclay material, and synthesized polyaniline (PANI) by ammonium persulfate-initiated ...
Bashar Aljawrneh   +3 more
doaj   +1 more source

Covalently modified halloysite clay nanotubes: synthesis, properties, biological and medical applications [PDF]

open access: yes, 2017
Halloysite (HNT) is a promising natural nanosized tubular clay mineral that has many important uses in different industrial fields. It is naturally occurring, biocompatible, and available in thousands of tons at low cost.
Lazzara, G.   +4 more
core   +2 more sources

Indocyanine Green-Loaded Halloysite Nanotubes as Photothermal Agents

open access: yesACS Omega, 2023
Photothermal nanoparticles with light-to-heat conversion properties have gained interest in recent years and have been used in a variety of applications. Herein, indocyanine green (ICG), which is commonly employed as a photothermal agent suffering from low photostability, was loaded into halloysite nanotubes (HNTs) resulting in photothermal HNT-ICG ...
Oyku Demirel   +3 more
openaire   +5 more sources

Eco-friendly functionalization of natural halloysite clay nanotube with ionic liquids by microwave irradiation for Suzuki coupling reaction [PDF]

open access: yes, 2014
Microwave assisted halloysite (HNT) external surface functionalization with ionic liquids is described. HNTs modification was achieved in two steps: a) grafting of 3-mercaptopropyl trimethoxysilane on the external surface of HNT by a microwave ...
CAVALLARO, Giuseppe   +6 more
core   +1 more source

Antimicrobial Applications of Clay Nanotube-Based Composites

open access: yesNanomaterials, 2019
Halloysite nanotubes with different outer surface/inner lumen chemistry (SiO2/Al2O3) are natural objects with a 50 nm diameter hollow cylindrical structure, which are able to carry functional compounds both inside and outside.
Anna Stavitskaya   +6 more
doaj   +1 more source

Molecular dynamics simulation of pull-out Halloysite nanotube from polyurethane matrix

open access: yesAdvances in Mechanical Engineering, 2021
Molecular dynamics (MD) simulation has been applied to study of pull-out of Halloysite nanotubes (HNTs) from a polyurethane (PU) matrix. First, the Machine learning (ML) particle swarm optimization (PSO) method was used to obtain force field parameters ...
Mohammadreza Heidari Pebdani   +1 more
doaj   +1 more source

Polyethylenimine-functionalized halloysite nanotube as an adsorbent for CO2 capture: RSM and ANN methodology

open access: yesCurrent Research in Green and Sustainable Chemistry, 2023
In this study, artificial neural networks (ANN) and response surface methodology (RSM) were used for the modeling and optimization of CO2 adsorption in polyethylenimine (PEI)-functionalized halloysite adsorbents.
Zohreh Khoshraftar   +2 more
doaj   +1 more source

Occupational exposure during handling and loading of halloysite nanotubes – A case study of counting nanofibers [PDF]

open access: yes, 2018
Halloysite nanotubes (HNTs) are abundant naturally-occurring hollow aluminosilicate clay mineral fibers with a typical diameter  3 and in length > 2 μm. These particles were agglomerated and/or aggregated particles where the longest individual fiber was ...
Andrade, Flavia   +13 more
core   +1 more source

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