Covalent immobilization of redox enzyme on electrospun nonwoven poly(acrylonitrile-co-acrylic acid) nanofiber mesh filled with carbon nanotubes: A comprehensive study

2006 ◽  
Vol 97 (4) ◽  
pp. 708-720 ◽  
Author(s):  
Zhen-Gang Wang ◽  
Bei-Bei Ke ◽  
Zhi-Kang Xu
Keyword(s):  
Carbon Nanotubes ◽  
Acrylic Acid ◽  
Covalent Immobilization ◽  
Redox Enzyme ◽  
Poly Acrylonitrile ◽  
Comprehensive Study ◽  
Nanofiber Mesh

Vibration characteristics of rotating truncated conical shells reinforced with agglomerated carbon nanotubes

2021 ◽  
pp. 107754632110004
Author(s):  
Hassan Afshari ◽  
Hossein Amirabadi
Keyword(s):  
Carbon Nanotubes ◽  
Differential Quadrature Method ◽  
Shear Deformation Theory ◽  
Free Vibration Analysis ◽  
Functionally Graded ◽  
Governing Equations ◽  
Conical Shells ◽  
First Order ◽  
Effective Mechanical Properties ◽  
Comprehensive Study

In this article, a comprehensive study is conducted on the free vibration analysis of rotating truncated conical shells reinforced with functionally graded agglomerated carbon nanotubes The shell is modeled based on the first-order shear deformation theory, and effective mechanical properties are calculated based on the Eshelby–Mori–Tanaka scheme along with the rule of mixture. By considering centrifugal and Coriolis accelerations and initial hoop tension, the set of governing equations is derived using Hamilton’s principle and is solved numerically using the differential quadrature method Convergence and accuracy of the presented model are confirmed and the effects of different parameters on the forward and backward frequencies of the rotating carbon nanotube-reinforced truncated conical shells are investigated.

scholarly journals Insights into the p-nitrophenol adsorption by amidoxime-modified poly(acrylonitrile-co-acrylic acid): characterization, kinetics, isotherm, thermodynamic, regeneration and mechanism study

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8150-8162
Author(s):  
Shihab Ezzuldin M. Saber ◽  
Siti Nurul Ain Md Jamil ◽  
Luqman Chuah Abdullah ◽  
Thomas Shean Yaw Choong ◽  
Teo Ming Ting
Keyword(s):  
Acrylic Acid ◽  
Aqueous Solutions ◽  
Adsorptive Capacity ◽  
Mechanism Study ◽  
Poly Acrylonitrile

This study performs an appraisal of the adsorptive capacity of amidoxime-modified poly(acrylonitrile-co-acrylic acid) for the p-nitrophenol (PNP) adsorption, from aqueous solutions.

Microporous Carbon Nanofibers Derived from Poly(acrylonitrile‐ co ‐acrylic acid) for High‐Performance Supercapacitors

2020 ◽  
Vol 26 (15) ◽  
pp. 3326-3334 ◽  
Author(s):  
Jiye Li ◽  
Xin Song ◽  
Weimiao Zhang ◽  
Hao Xu ◽  
Teng Guo ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Carbon Nanofibers ◽  
High Performance ◽  
Microporous Carbon ◽  
Poly Acrylonitrile

Preparation and Surface Modification of Poly(acrylonitrile-co-acrylic acid) Electrospun Nanofibrous Membranes

2008 ◽  
Vol 61 (6) ◽  
pp. 446 ◽  
Author(s):  
Ai-Fu Che ◽  
Xiao-Jun Huang ◽  
Zhen-Gang Wang ◽  
Zhi-Kang Xu
Keyword(s):  
Surface Modification ◽  
Acrylic Acid ◽  
Photoelectron Spectroscopy ◽  
Platelet Adhesion ◽  
Coupling Reaction ◽  
Processing Parameters ◽  
Electrospinning Technique ◽  
Nanofibrous Membranes ◽  
Atr Spectroscopy ◽  
Poly Acrylonitrile

Poly(acrylonitrile-co-acrylic acid) (PANCAA) was synthesized and fabricated into nanofibrous membranes by an electrospinning technique. Scanning electron microscopy revealed that membranes composed of uniformly thin and smooth nanofibres were obtained under optimized processing parameters. Surface modification with chitosan on these nanofibrous membranes was accomplished by a coupling reaction between the carboxylic groups of PANCAA and the primary amino groups of chitosan. Fluorescent labelling, weight measurement, FT-IR/ATR spectroscopy, and X-ray photoelectron spectroscopy (XPS) were used to confirm the modification process and determine the immobilization degree of chitosan. Platelet adhesion experiments were further carried out to evaluate the hemocompatibility of the studied nanofibrous membranes. Preliminary results indicated that the immobilization of chitosan on the PANCAA nanofibrous membranes was favourable for platelet adhesion.

Adsorption of 60Co from aqueous solution onto alginate–acrylic acid–vinylsulfonic acid/multiwalled carbon nanotubes composite

2019 ◽  
Vol 77 (9) ◽  
pp. 4631-4653
Author(s):  
Islam Mohamed Abdelmonem ◽  
Essam Metwally ◽  
Tharwat Essa Siyam ◽  
Farid Abou El-Nour ◽  
Abdel-Rahman Mahmoud Mousa
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Acrylic Acid ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon

scholarly journals A Comprehensive Study on Hydroxyl Multiwalled Carbon Nanotubes Used as Catalysts for VO2+/VO2+ Reaction in Vanadium Redox Flow Battery

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Qiang Li ◽  
Anyu Bai ◽  
Zeqiang Qu ◽  
Tianyu Zhang ◽  
Jie Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Cell Performance ◽  
Vanadium Redox Flow Battery ◽  
High Catalytic Activity ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Multiwalled Carbon ◽  
Vanadium Redox ◽  
Comprehensive Study

A comprehensive study on the hydroxyl multiwalled carbon nanotubes (hydroxyl MWCNTs) as catalysts in a positive reaction was performed to improve the efficiency of the vanadium redox flow battery (VRFB). The physicochemical properties of the hydroxyl MWCNT-modified electrode were characterized by using a scanning electron microscope (SEM), conductivity measurement, Brunner–Emmet–Teller (BET) measurement, X-ray photoelectron spectroscopy (XPS) analysis, cyclic voltammetry (CV) tests, electrochemical impedance spectroscopy (EIS) analysis, and charge-discharge tests. The prepared composite electrode possesses a huge amount of oxygen-containing groups, high-specific surface area, high electrical conductivity, and high catalytic activity towards the VO2+/VO2+ reaction based on physicochemical characterization. The hydroxyl MWCNT-modified graphite felt (hydroxyl MWCNTs/GF) shows the best cell performance with the energy efficiency of 79.74% and remains in high stability after 50 cycles. The improved cell performance is probably ascribed to the increase in active sites, fast charge transfer, and mass transfer rate of the introduced hydroxyl MWCNTs.

scholarly journals Hydrophilic thiourea-modified poly(acrylonitrile-co-acrylic acid) adsorbent: preparation, characterization, and dye removal performance

2019 ◽  
Vol 28 (6) ◽  
pp. 483-491 ◽  
Author(s):  
Abel A. Adeyi ◽  
Siti N. A. M. Jamil ◽  
Luqman C. Abdullah ◽  
Thomas S. Y. Choong
Keyword(s):  
Acrylic Acid ◽  
Dye Removal ◽  
Poly Acrylonitrile

Comprehensive study of monatomic fluid flow through elliptical carbon nanotubes

2020 ◽  
Vol 32 (9) ◽  
pp. 092006
Author(s):  
Mohammad Rezaee ◽  
Mohammad Namvarpour ◽  
Arian Yeganegi ◽  
Hojat Ghassemi
Keyword(s):  
Carbon Nanotubes ◽  
Fluid Flow ◽  
Flow Through ◽  
Comprehensive Study
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