scholarly journals Biomimetic synthesis of poly(lactic-co-glycolic acid)/multi-walled carbon nanotubes/apatite composite membranes

2012 ◽  
Vol 6 (8) ◽  
pp. 620-628 ◽  
Author(s):  
H. L. Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Glycolic Acid ◽  
Composite Membranes ◽  
Biomimetic Synthesis ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Polystyrene/MWCNTs Nanofiber Membranes characterizations in Reducing Sulfur Content in Crude Oil

2021 ◽  
Vol 886 ◽  
pp. 86-96
Author(s):  
Ahmed H. Oleiwi ◽  
Akram R. Jabur ◽  
Qusay F. Alsalhy
Keyword(s):  
Carbon Nanotubes ◽  
Crude Oil ◽  
Pore Size ◽  
Sulfur Content ◽  
Average Pore Size ◽  
Composite Membranes ◽  
Average Pore ◽  
Multi Walled Carbon Nanotubes ◽  
And Performance ◽  
Walled Carbon Nanotubes

Composite material membranes as fibers were produced by using electrospinning technology and these membranes characterized and evaluated their properties and performance in this research. Multi-walled carbon nanotubes impregnated in a polystyrene matrix to produce the composite membranes. The hydrophobicity of the membrane was improved by the composite concept with multi-walled carbon nanotubes because of the migration of MWCNTs into fiber structure with membranes. Field emission scanning electron microscopy used to study the morphologies of the membranes and illustrated the average diameters of produced fibers which found about 1.68-3.2 µm and average pore size which found about 3.6 – 4.7 µm for composite membranes and showed an increasing in fibers diameter and pore size with increasing of the MWCNTs amount while the membranes porosity still high percentage about 98%. Also the polystyrene with MWCNTs showed the ability of membranes to decrease the sulfur content from 2.8% for crude oil and reach to about 1.6 % with polystyrene/2% MWCNTs.

Performance Enhancements of Polysulfone Ultrafiltration Membranes through Blending with Functionalized Carbon Nanotubes and Polyaniline Nanofibers

2012 ◽  
Vol 217-219 ◽  
pp. 540-545 ◽  
Author(s):  
Yao Zu Liao ◽  
Xia Wang ◽  
Ying Li ◽  
Wei Qian ◽  
Xiao Yan Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Protein Separation ◽  
High Performance ◽  
Composite Membranes ◽  
Coagulation Bath ◽  
Ultrafiltration Membranes ◽  
Pani Nanofibers ◽  
Multi Walled Carbon Nanotubes ◽  
New Type ◽  
Walled Carbon Nanotubes

High-performance membranes for protein separation are of great interest. In this study, new type of polysulfone (PSf) composite ultrafiltration membranes are created by blending PSf with polyaniline (PANi) nanofibers and functionalized multi-walled carbon nanotubes (MWNTs) and then casting the mixture solutions via a well-developed non-solvent/solvent induced phase separation technique, using deionized water as the coagulation bath. The compositions, morphologies and properties of as-formed membranes are fully investigated. We demonstrate that membrane characteristics such as porosity, hydrophilicity, conductivity and thermal stability for PSf can be significantly enhanced with the incorporation of hydrophilic and conductive compositions of functionalized-MWNTs and PANi nanofibers. The composite membranes exhibit comparable bovine serum albumin (BSA) selectivities (89-93 vs. 92%) but much improved water fluxes (31.5-88.9 vs. 9.2 gfd/psi) against pure PSf membranes.

BIOMIMETIC SYNTHESIS OF FePt NANOPARTICLES ON MULTI-WALLED CARBON NANOTUBES FOR FUNCTIONAL NANOMATERIALS

2013 ◽  
Vol 06 (01) ◽  
pp. 1350006 ◽  
Author(s):  
LI WANG ◽  
JIKU WANG ◽  
ZHUANG LI
Keyword(s):  
Carbon Nanotubes ◽  
Photoelectron Spectroscopy ◽  
Water Solubility ◽  
High Water ◽  
Biomimetic Synthesis ◽  
Fept Nanoparticles ◽  
The Core ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Core Part

We present a facile green biomimetic synthesis of FePt nanoparticles (NPs) on the sidewalls of multi-walled carbon nanotubes (CNTs). A core-shell globular protein, ferritin (Fr), was bound onto Z-glycine N-succinimidyl ester (Z-Gly-OSu) modified CNTs and served as precursor to create FePt NPs at the core part of Fr. Biomimetic synthesis of FePt NPs was carried out by chemical reducing of Fe2+ and [Formula: see text] ions that transferred into the core part of Fr molecules. The created one-dimensional CNT- FePt nanohybrids were characterized by transmission electron microscopy and X-ray photoelectron spectroscopy. The synthesized CNT- FePt nanohybrids show multi-properties of high water-solubility, ferromagnetism, and electrocatalytic activity.

Multi-walled Carbon Nanotubes Penetrate into Plant Cells and Affect the Growth of Onobrychis arenaria Seedlings

Acta Naturae ◽  
2011 ◽  
Vol 3 (1) ◽  
pp. 99-106 ◽  
Author(s):  
E A Smirnova ◽  
A A Gusev ◽  
O N Zaitseva ◽  
E M Lazareva ◽  
G E Onishchenko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Plant Cells ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes
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