Results 91 to 100 of about 133,911 (314)

Preparation of Amidoxime Polyacrylonitrile Chelating Nanofibers and Their Application for Adsorption of Metal Ions. [PDF]

open access: yes, 2013
Polyacrylonitrile (PAN) nanofibers were prepared by electrospinning and they were modified with hydroxylamine to synthesize amidoxime polyacrylonitrile (AOPAN) chelating nanofibers, which were applied to adsorb copper and iron ions. The conversion of the
Hsieh, You-Lo   +5 more
core   +3 more sources

Utilization of Labuhan Batu red sand post heavy metals adsorption as sources of high-quality concrete material

open access: yesSouth African Journal of Chemical Engineering
Red Sand (RS) is used as an absorbent for heavy metals, then the red sand absorbed by heavy metals is used as a basic material for making concrete. Red sand adsorbed of heavy metals Mn(II), Pb(II), and Zn(II) were 0.39 mg/g, 026 mg/g.
Winsyahputra Ritonga   +7 more
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Synthesis of core-shell nanoparticles for the removal of toxic pollutants in aqueous medium [PDF]

open access: yes, 2018
In this work two active photo-catalysts were synthetized and tested for the removal of methylene blue and arsenic in aqueous solutions. The two catalysts (Fe3O4/SiO2/TiO2-Al and Fe3O4-SiO2/Zr-TiO2) were characterized by nano-size, guaranteeing a large ...
Cheng, Khley   +4 more
core   +1 more source

Breathable Graphene Oxide‐Polymer Composite Membranes With Two‐Step Barrier Mechanism Against Nerve Agents

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim   +6 more
wiley   +1 more source

Перспективные направления использования природных глин для очистки урбанизированных территорий [PDF]

open access: yes, 2010
Розглянуто проблему зниження токсичностi промислових вiдходiв та захвату важ- ких металiв iз забруднених грунтiв за допомогою природних сорбентiв. Дослiджується поглинальна здатнiсть каолiнiт-гiдрослюдистої та бентонiтової глин вiдносно важких металiв.
Албаева, Л.А.   +1 more
core  

Understanding the Role of Superhydrophobicity and Superhydrophilicity in Salt‐Spray Corrosion of Nanosecond Pulsed Laser‐Textured AA2024 Alloy

open access: yesAdvanced Functional Materials, EarlyView.
Nanosecond pulse laser texturing yields superhydrophobic and superhydrophilic AA2024 surfaces. Salt‐spray tests show that periodic superhydrophobic patterns suppress pitting, whereas superhydrophilic textures enhance it, linking laser‐induced morphology, wettability, and oxide chemistry to corrosion resistance.
Lis Geraldine Zschach   +8 more
wiley   +1 more source

Review on Adsorption of Heavy Metal in Wastewater by Using Geopolymer [PDF]

open access: yes, 2017
Rapid development of advanced technology in Malaysia gave impact increasing in the accumulation of heavy metal every day in our daily life through wastewater.
Abdullah, Mohd Mustafa Al Bakri   +6 more
core   +2 more sources

Complexation‐Mediated Diffusion‐Limited Crystal Growth: A General Framework for Anisotropic Crystal Growth in Cu‐Based Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
A Complexation‐Mediated Diffusion‐Limited Growth (CMDLG) framework is established to rationalize the anisotropic growth of lead‐free perovskites. Integrating coordination chemistry with mass transport kinetics, this study theoretically derives and experimentally validates that stable iodocuprate complexes induce a diffusion‐limited regime.
Hyunmin Lee   +5 more
wiley   +1 more source

The role of limestone and dolomite tailings’ particle size in retention of heavy metals from liquid waste [PDF]

open access: yes, 2008
Purpose. The study aims at investigating the role of particle size of mineral tailings derived from limestone, limestone marble, dolomite and dolomitic marble in heavy metal adsorption, in both batch and fixed bed conditions, so as to estimate whether ...
Albadarin   +26 more
core   +1 more source

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