Ionic Liquid-Based Preparation of Cellulose−Dendrimer Films as Solid Supports for Enzyme Immobilization

2008 ◽  
Vol 9 (1) ◽  
pp. 381-387 ◽  
Author(s):  
Mozhgan Bagheri ◽  
Héctor Rodríguez ◽  
Richard P. Swatloski ◽  
Scott K. Spear ◽  
Daniel T. Daly ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Enzyme Immobilization ◽  
Solid Supports

scholarly journals Development of New Efficient Adsorbent by Functionalization of Mg3Al-LDH with Methyl Trialkyl Ammonium Chloride Ionic Liquid

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7384
Author(s):  
Samuel Nick Țolea ◽  
Laura Cocheci ◽  
Lavinia Lupa ◽  
Raluca Vodă ◽  
Rodica Pode
Keyword(s):  
Experimental Data ◽  
Ionic Liquid ◽  
Ammonium Chloride ◽  
Layered Double Hydroxides ◽  
Added Value ◽  
Maximum Adsorption Capacity ◽  
Order Kinetic ◽  
Solid Supports ◽  
Double Hydroxides ◽  
Efficient Adsorbent

The present paper describes a new way of obtaining an efficient adsorbent material by functionalization of Mg3Al layered double hydroxides (LDH) with methyl trialkyl ammonium chloride-ionic liquid (IL) using two methods: ultrasound and cosynthesis. Layered double hydroxides are good solid support for the functionalization with ionic liquids due to their well-ordered structure. The immobilization of the ILs in suitable solid supports combine the advantages of the ILs with the properties of the solid supports bringing more benefits such as use of lower quantity of ILs and avoiding of ILs loss in the aqua phase which overall decrease the treatment costs. In case of ultrasound method of functionalization is assured a uniform distribution of IL on the solid surface, but through immobilization by cosynthesis due to the tunable properties of LDH, is assured an intercalation of the ILs between the LDH layers. This fact was highlighted by the X-ray diffraction (RXD), scanning electron microscopy (SEM) analyses and Fourier-transform infrared (FTIR) spectroscopy of the obtained adsorbent. The added value brought by the functionalization of Mg3Al with the studied IL was underlined by the adsorption studies conducted in the treatment process of water with diclofenac content. Kinetic, thermodynamic, and equilibrium studies were performed. DCF adsorption onto the studied materials correspond to a chemisorption, the pseudo-second-order kinetic model describing the most accurately the experimental data. DCF adsorption onto the studied materials occurs as a heterogeneous process, with the experimental data fitting best with the SIPS isotherm. The sample obtained through cosynthesis developed a maximum adsorption capacity of 648 mg/g.

scholarly journals Thermal Analysis and SEM Microscopy Applied to Studying the Efficiency of Ionic Liquid Immobilization on Solid Supports

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1579 ◽  
Author(s):  
Anna Sowińska ◽  
Magdalena Maciejewska ◽  
Laina Guo ◽  
Etienne Delebecq
Keyword(s):  
Thermal Analysis ◽  
Ionic Liquid ◽  
Carbon Black ◽  
Surface Reactivity ◽  
Solid Supports ◽  
Sem Images ◽  
Elastomeric Matrix ◽  
Dispersion Degree ◽  
Conductive Additives ◽  
Elastomer Composites

Ionic liquids (ILs) are widely used in elastomer composites, primarily as vulcanization activators or accelerators, crosslinkers, conductive additives, or dispersing agents of fillers. The aim of this work was to study the efficiency of ionic liquid immobilization on filler surfaces using different techniques of thermal analysis and scanning electron microscopy (SEM). Ionic liquid, such as 1-decyl 3-methylimidazolium bromide (DmiBr) was grafted on the surface of silica, calcium oxide, and carbon black to improve the dispersion degree of their particles in the elastomeric matrix. Thermal analysis and SEM microscopy revealed a key role in determining the efficiency of the filler modification with ILs dissolved in acetone. Identifying the weight loss associated with thermal decomposition of DmiBr in modified fillers, allowed the calculation of the efficiency of their modification and compare the surface reactivity of studied fillers with DmiBr. Silica and carbon black exhibited high and comparable ability for interaction with ionic liquid. SEM images showed that particles of DmiBr-modified fillers were quite homogeneously dispersed in the elastomer matrix and exhibited good adhesion to the elastomer.

Ionic liquid-cellulose film for enzyme immobilization

2011 ◽  
Vol 46 (6) ◽  
pp. 1375-1379 ◽  
Author(s):  
Manuela Poletto Klein ◽  
Carla Weber Scheeren ◽  
André Soibelmann Glock Lorenzoni ◽  
Jairton Dupont ◽  
Jeverson Frazzon ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Enzyme Immobilization ◽  
Cellulose Film

Modeling enzyme immobilization in porous solid supports

1982 ◽  
Vol 24 (7) ◽  
pp. 1527-1546 ◽  
Author(s):  
Duong D. Do ◽  
Douglas S. Clark ◽  
James E. Bailey
Keyword(s):  
Enzyme Immobilization ◽  
Porous Solid ◽  
Solid Supports

Water-in-ionic liquid microemulsion-based organogels as novel matrices for enzyme immobilization

2010 ◽  
Vol 5 (8) ◽  
pp. 805-812 ◽  
Author(s):  
Ioannis V. Pavlidis ◽  
Kyriakos Tzafestas ◽  
Haralambos Stamatis
Keyword(s):  
Ionic Liquid ◽  
Enzyme Immobilization
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