Selective separation of scandium from iron, aluminium and gold rich wastewater using various amino and non-amino functionalized silica gels – A comparative study

2018 ◽  
Vol 170 ◽  
pp. 890-901 ◽  
Author(s):  
Deepika Lakshmi Ramasamy ◽  
Ville Puhakka ◽  
Eveliina Repo ◽  
Mika Sillanpää
Keyword(s):  
Comparative Study ◽  
Selective Separation ◽  
Silica Gels ◽  
Functionalized Silica

scholarly journals Size-selective separation of DNA fragments by using lysine-functionalized silica particles

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Lingling Liu ◽  
Zilong Guo ◽  
Zhenzhen Huang ◽  
Jiaqi Zhuang ◽  
Wensheng Yang
Keyword(s):  
Silica Particles ◽  
Selective Separation ◽  
Dna Fragments ◽  
Functionalized Silica

Magnetically recoverable porphyrin-based nanocatalysts for the effective oxidation of olefins with hydrogen peroxide: a comparative study

2020 ◽  
Vol 44 (44) ◽  
pp. 19385-19392
Author(s):  
Saeed Rayati ◽  
Dana Moradi ◽  
Fatemeh Nejabat
Keyword(s):  
Hydrogen Peroxide ◽  
Magnetic Nanoparticles ◽  
Comparative Study ◽  
Amide Bond ◽  
Functionalized Silica ◽  
Simple Method ◽  
Amine Functionalized ◽  
Oxidation Of Olefins

A simple method for the functionalization of magnetic nanoparticles, which is achieved by the attachment of metalloporphyrin onto the surface of amine functionalized silica-coated magnetic nanoparticles via an amide bond.

scholarly journals Extraction of minor actinides, lanthanides and other fission products by silica-immobilized BTBP/BTPhen ligands

2017 ◽  
Vol 53 (28) ◽  
pp. 4010-4013 ◽  
Author(s):  
Ashfaq Afsar ◽  
Petr Distler ◽  
Laurence M. Harwood ◽  
Jan John ◽  
James Westwood
Keyword(s):  
Fission Products ◽  
Silica Gels ◽  
Minor Actinides ◽  
Functionalized Silica

Novel BTBP [bis-(1,2,4-triazin-3-yl)-2,2′-bipyridine]/BTPhen [bis-(1,2,4-triazin-3-yl)-1,10-phenanthroline] functionalized silica gels have been developed to extract minor actinides, lanthanides and other fission products.

Calix[4]pyrrole-Functionalized Silica Gels: Novel Supports for the HPLC-Based Separation of Anions

2000 ◽  
pp. 238-254 ◽  
Author(s):  
Jonathan L. Sessler ◽  
John W. Genge ◽  
Philip A. Gale ◽  
Vladimír Král
Keyword(s):  
Silica Gels ◽  
Functionalized Silica

scholarly journals Adsorption Separation of Arsenic(III) and Arsenic(V) using Functionalized Silica Gels

2021 ◽  
Vol 14 (4) ◽  
pp. 477-488
Author(s):  
Elena V. Borodina ◽  
◽  
Svetlana L. Didukh-Shadrina ◽  
Vladimir N. Losev ◽  
Anatoly K. Trofimchuk ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Separation Efficiency ◽  
Inorganic Arsenic ◽  
Optical Emission ◽  
Arsenic Species ◽  
Silica Gels ◽  
Emission Spectrometry ◽  
Functionalized Silica ◽  
Inductively Coupled ◽  
Ph Range

A method for the adsorption separation of inorganic arsenic species (As(III)/As(V)) using sequentially connected preconcentrating columns filled with functionalized silica gels and their determination by inductively coupled plasma optical emission spectrometry was proposed. As(V) was effectively retained at pH 3.5–6.5 by an adsorbent containing groups of quaternary phosphonium bases on the surface and exhibiting the properties of an anion exchanger. In this pH range, As(III) was not extracted, which made it possible to separate As(V) from As(III). As(III) was retained in a wide pH range of 1–6 by a complexing adsorbent containing mercapto groups on the surface. Adsorbed As(V) was quantitatively eluted from the surface with 1M HNO3, and As(III) – with 5 % unithiol solution in 2M HCl. The use of «non-aggressive» eluents allows us to reuse adsorbents for preconcentration of As(III) and As(V) at least 5 times. The separation efficiency was confirmed by the analysis of model solutions

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