scholarly journals Preparation and Metal-Adsorption Properties of the Polymer-Coated Silica Gel Having Iminodiacetate Functional Group

1987 ◽  
Vol 60 (8) ◽  
pp. 2839-2842 ◽  
Author(s):  
Toshishige M. Suzuki ◽  
Osamu Itabashi ◽  
Tomio Goto ◽  
Toshiro Yokoyama ◽  
Tetsuo Kimura
Keyword(s):  
Silica Gel ◽  
Functional Group ◽  
Adsorption Properties ◽  
Metal Adsorption

Metal adsorption properties of multi‐functional PAMAM dendrimer based gels

2021 ◽  
Author(s):  
Dilgeş Baskın ◽  
Özge Yılmaz ◽  
Muhammad Nazrul Islam ◽  
Metin Tülü ◽  
İkbal Koyuncu ◽  
...  
Keyword(s):  
Pamam Dendrimer ◽  
Adsorption Properties ◽  
Metal Adsorption

scholarly journals BIOSORPTION OF METAL IONS Pb(II), Cu(II), AND Cd(II) ON Sargassum duplicatum IMMOBILIZED SILICA GEL MATRIX

2010 ◽  
Vol 6 (3) ◽  
pp. 245-250 ◽  
Author(s):  
Buhani Buhani ◽  
Suharso Suharso ◽  
Zipora Sembiring
Keyword(s):  
Metal Ions ◽  
Silica Gel ◽  
Functional Group ◽  
Adsorption Process ◽  
Liquid Waste ◽  
Batch Method ◽  
Algae Biomass ◽  
Adsorbent Surface ◽  
Physical And Chemical ◽  
Matrix Series

Sargassum duplicatum algae biomass is biological material which has a potency to be used as a biosorbent adsorb metal ions from industrial liquid waste, because it has effective functional group as a ligand. However, the ability of the algae biomass in adsorbing of heavy metal ions has some problem such as; tiny size, low density, and easy to be degradated by other microorganism. In addition, algae biomass can not be used directly in adsorption column for its application as the biosorbent. In order to improve physical and chemical prpperties of algae biomass, it needs to be immobilized on silica gel matrix. Series of experiment have been done, morphology analysis of adsorbent surface was performed by using Scanning Electron Microscopy (SEM) and adsorption process to examine the effectiveness of algae biomass immobilized in adsorbing Pb(II), Cu(II), and Cd(II) was performed using batch method at 27 °C. Concentration of metal was determined by using Atomic Absorption Spectrophotometer (AAS) and identification of functional group was conducted using Spectrophotometer Infrared (IR). Data obtained showed that interacting among metal ions with algae biomass is optimum at a range of 60 minutes. Adsorption energies of metal ions resulted from the interaction of metal ions with the functional group of -C=O group from carboxyl and amide on algae biomass and -Si-OH group from silica were at a range of 21.09-25.05 kJ/mole.   Keywords: biosorption, silica gel, Sargassum duplicatum, immobilization

Adsorption Properties of Mesoporous Silica Gel with β-Cyclodextrin as a Pore-Forming Agent Relative to Moxifloxacin

2018 ◽  
Vol 73 (4) ◽  
pp. 192-198
Author(s):  
A. A. Skuredina ◽  
M. R. Danilov ◽  
I. M. Le-Deygen ◽  
E. V. Kudryashova
Keyword(s):  
Mesoporous Silica ◽  
Silica Gel ◽  
Adsorption Properties ◽  
Mesoporous Silica Gel

scholarly journals The Prospective Approach for the Reduction of Fluoride Ions Mobility in Industrial Waste by Creating Products of Commercial Value

2019 ◽  
Vol 11 (3) ◽  
pp. 634 ◽  
Author(s):  
Valdas Rudelis ◽  
Tadas Dambrauskas ◽  
Agne Grineviciene ◽  
Kestutis Baltakys
Keyword(s):  
Liquid Medium ◽  
Silica Gel ◽  
Reaction Temperature ◽  
Industrial Waste ◽  
Adsorption Properties ◽  
Raw Material ◽  
Fluoride Ions ◽  
Dynamic Conditions ◽  
Stable Compound ◽  
Silica Gel Waste

In this work, we present the possibility to reduce the amount of fluoride ions in silica gelwaste by using different techniques or to immobilize these ions by creating products ofcommercial value. The leaching of fluoride ions from silica gel waste to the liquid medium wasdone under static and dynamic conditions. It was determined that the removal of fluoride ionsfrom this compound depends on various factors, such as dissociation, solubility, the w/s ratio,reaction temperature, leaching conditions, the adsorption properties of silica gel waste, and others.The obtained results showed that, by applying different techniques, the quantity of fluoride ionscan be reduced by 60%, while obtained water was neutralized by calcium hydroxide.Additionally, it was determined that silica gel waste is a promising raw material for thehydrothermal synthesis of a stable compound containing fluoride ions – cuspidine.

scholarly journals Synthesis of Perfluoropolyethers Having a Functional Group at the Chain End and Their Adsorption Properties

2000 ◽  
Vol 73 (11) ◽  
pp. 529-534
Author(s):  
Yukishige KONDO ◽  
Teiji IZAWA ◽  
Tokuzo KAWASE ◽  
Norio YOSHINO
Keyword(s):  
Functional Group ◽  
Adsorption Properties

Mechanical and metal adsorption properties of emulsion gel adsorbents composed of PEGDA-co-PEG hydrogels and tri-n-octylamine

2017 ◽  
Vol 75 (4) ◽  
pp. 1597-1606 ◽  
Author(s):  
Hideaki Tokuyama ◽  
Yu Nakahata ◽  
Ryuichi Sato ◽  
Yuichiro Nagatsu ◽  
Takahiko Ban
Keyword(s):  
Adsorption Properties ◽  
Metal Adsorption ◽  
Peg Hydrogels ◽  
Emulsion Gel
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