Chemical modification of silica surface by immobilization of functional groups for extractive concentration of metal ions

PK Jal, S Patel, BK Mishra - Talanta, 2004 - Elsevier
… , as prior to the analysis of the substance, adsorbed ions … by modified solid sorbent for
preconcentration of metal ions at … for extractive concentration of metal ions from aqueous solution …

Chemical modification of cellulosic biopolymer and its use in removal of heavy metal ions from wastewater

AS Singha, A Guleria - International Journal of Biological Macromolecules, 2014 - Elsevier
Chemical modification of cellulosic biofibers is carried out to achieve efficient adsorption
capacity for heavy metal ions [6], [7], [8]. Chemical modification by graft copolymerization of vinyl …

Effect of chemical modification of algal carboxyl groups on metal ion binding

JL Gardea-Torresdey, MK Becker-Hapak… - Environmental …, 1990 - ACS Publications
… to algal surfaces, it is necessary to determine which chemical groups on the algal cell wall
metal ions. One approach to gaining this information is chemical modification of the metal

Bioadsorbents from algae residues for heavy metal ions adsorption: chemical modification, adsorption behaviour and mechanism

R Li, T Zhang, H Zhong, W Song, Y Zhou… - Environmental …, 2021 - Taylor & Francis
… of heavy metals from industrial wastewater by natural or modified … The obtained residues
were further chemical modified by … After modification, the adsorption capacity for metal ions

Chemical modifications of cassava peel as adsorbent material for metals ions from wastewater

D Schwantes, AC Goncalves Jr, GF Coelho… - … of chemistry, 2016 - Wiley Online Library
… by chemical modifications, with … modified cassava peels are excellent adsorbent, renewable,
high availability, and low-cost materials and a feasible alternative in the removal of metals

[PDF][PDF] Removal of heavy metal ions using chemically modified adsorbents

ME Argun, S Dursun - J. Int. Environ. Appl. Sci, 2006 - Citeseer
… In this article, chemical modification methods and its enhancement affect on the adsorption
capacity of wood based adsorbents for treatment process has been investigated. HCl, H2SO4…

Chemical modification of cross-linked resin based on acrylonitrile for anchoring metal ions

LC de Santa Maria, MCV Amorim, MRMP Aguiar… - Reactive and Functional …, 2001 - Elsevier
modified with hydroxylamine). These results have shown that the chemical modifications
of the resin based on acrylonitrile have provoked an increase of metal ion fixing capacity …

Chemical modification of waste poly (p-phenylene terephthalamide) fibers and its binding behaviors to metal ions

R Qu, X Sun, C Sun, Y Zhang, C Wang, C Ji… - Chemical engineering …, 2012 - Elsevier
… adsorbent for metal ions, PPTA-Sal and its basification product PPTA-Sal(Na) were prepared
via a series of chemical modification reactions. The structures of the modified fibers were …

Modification of carbon nanotubes for preconcentration, separation and determination of trace-metal ions

R Sitko, B Zawisza, E Malicka - TrAC Trends in Analytical Chemistry, 2012 - Elsevier
… This review focuses on chemical modification of CNTs. We discuss … of chemical
functionalization. ► We present several applications of modified CNTs in determining trace-metal

Chemical modification of chitosan and equilibrium study for mercury ion removal

C Jeon, WH Höll - Water Research, 2003 - Elsevier
… , various chemical modifications were also tried. Among various chemical modification
methods, … chelate with transition metal ion according to the overall charge of the metal ion. For a …