Novel carbon based bioactive nanocomposites of aniline/indole copolymer for removal of cationic dyes from aqueous solution: kinetics and isotherms

2019 ◽  
Vol 43 (5) ◽  
pp. 2400-2410 ◽  
Author(s):  
Mona Rouhi ◽  
Moslem Mansour Lakouraj ◽  
Hamed Tashakkorian ◽  
Vahid Hasantabar
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Graphene Oxide ◽  
Emulsion Polymerization ◽  
Cationic Dyes ◽  
Kinetics And Isotherms ◽  
Solution Kinetics ◽  
Carbon Based

In this study, a copolymer of aniline and indole P(ANI-co-IN) and its nanocomposites based on graphene oxide (GO) and functional carbon nanotubes (CNT-COOH) were synthesized by heterogeneous emulsion polymerization.

scholarly journals Polymethyl Methacrylate-Based Bone Cements Containing Carbon Nanotubes and Graphene Oxide: An Overview of Physical, Mechanical, and Biological Properties

Polymers ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1469 ◽  
Author(s):  
Sanaz Soleymani Eil Bakhtiari ◽  
Hamid Reza Bakhsheshi-Rad ◽  
Saeed Karbasi ◽  
Mohamadreza Tavakoli ◽  
Mahmood Razzaghi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Polymethyl Methacrylate ◽  
Biological Properties ◽  
Bone Diseases ◽  
Bone Cements ◽  
Bone Fixation ◽  
Primary Bone ◽  
Carbon Based

Every year, millions of people in the world get bone diseases and need orthopedic surgery as one of the most important treatments. Owing to their superior properties, such as acceptable biocompatibility and providing great primary bone fixation with the implant, polymethyl methacrylate (PMMA)-based bone cements (BCs) are among the essential materials as fixation implants in different orthopedic and trauma surgeries. On the other hand, these BCs have some disadvantages, including Lack of bone formation and bioactivity, and low mechanical properties, which can lead to bone cement (BC) failure. Hence, plenty of studies have been concentrating on eliminating BC failures by using different kinds of ceramics and polymers for reinforcement and also by producing composite materials. This review article aims to evaluate mechanical properties, self-setting characteristics, biocompatibility, and bioactivity of the PMMA-based BCs composites containing carbon nanotubes (CNTs), graphene oxide (GO), and carbon-based compounds. In the present study, we compared the effects of CNTs and GO as reinforcement agents in the PMMA-based BCs. Upcoming study on the PMMA-based BCs should concentrate on trialing combinations of these carbon-based reinforcing agents as this might improve beneficial characteristics.

Carbon-Based Nanomaterials for Drugs Sensing: A Review

2014 ◽  
Vol 807 ◽  
pp. 13-39
Author(s):  
Bavani Kasinathan ◽  
Ruzniza Mohd Zawawi
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Carbon Nanofibers ◽  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Sensing Applications ◽  
Carbon Based Nanomaterials ◽  
Walled Carbon Nanotubes ◽  
Carbon Based

Carbon-based nanomaterials such as graphene, carbon nanotubes, carbon nanofibers and nanodiamonds have been fascinated considerable attention as promising materials for drug sensing. These materials have tremendous amount of attraction due to some extraordinary features such as excellent electrical and thermal conductivities as well as high mechanical strength. Hence, these nanomaterials have been used extensively in sensor technology in order to achieved desired sensitivities. To date, carbon based nanomaterials have been exploit in the development of various drug sensing due to their simple preparation methods, and cost effectiveness. The aim of this review is to focus upon carbon based nanomaterials predominantly on drugs sensing applications. This review has been written in summary form including properties, fabrication method, and analytical performances.Abbreviation:Au, Gold; CNFs, Carbon Nanofibers; CNTs, Carbon Nanotubes; CVD, Chemical Vapour Deposition; D-, Dextrorotatory enantiomer; D, Dimensional; DNase, deoxyribonuclease; ESD, Electrospinning deposition; GCE, Glassy Carbon Electrode; Gr, Graphene; GrO, Graphene Oxide; ILs, ionic liquids; L-, Levorotatory enantiomer; LOD, Limit of Detection; MTase, Methyltransferases; MW, Microwave; MWCNTs, Multi-walled Carbon nanotubes; NDs, Nanodiamonds; NPs, Nanoparticles; PECVD, Plasma Enhanced Chemical Vapour Deposition; RGO, Reduced Graphene Oxide; SPE, Screen-Printed Electrode; SPR, Surface Plasmon resonance; ssDNA, single-stranded DNA; SWCNTs, Single-walled Carbon nanotubes.

Self-assembly fabrication of a graphene/multi-walled carbon nanotube hybrid material for suppressing potential heat radiation and toxic effluent

RSC Advances ◽  
2015 ◽  
Vol 5 (125) ◽  
pp. 103365-103372 ◽  
Author(s):  
Lei Liu ◽  
Dong Wang ◽  
Yuan Hu
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Hybrid Material ◽  
Self Assembly ◽  
Heat Radiation ◽  
Multi Walled Carbon Nanotube ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Negative graphene oxide was combined with positive chitosan-modified multi-walled carbon nanotubes in aqueous solution and then thermally reduced to fabricate a multi-walled carbon nanotube/graphene (MWCNT/G) hybrid material.

scholarly journals Adsorption of Toluene and Paraxylene from Aqueous Solution Using Pure and Iron Oxide Impregnated Carbon Nanotubes: Kinetics and Isotherms Study

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Aamir Abbas ◽  
Basim Ahmed Abussaud ◽  
Ihsanullah ◽  
Nadhir A. H. Al-Baghli ◽  
Halim Hamid Redhwi
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Iron Oxide ◽  
Multiwall Carbon Nanotubes ◽  
Freundlich Isotherm ◽  
Nitrogen Adsorption ◽  
Isotherm Models ◽  
Batch Adsorption ◽  
Adsorption Analysis ◽  
Kinetics And Isotherms

Multiwall carbon nanotubes (CNTs) and iron oxide impregnated carbon nanotubes (CNTs-iron oxide) were investigated for the adsorption of hazardous toluene and paraxylene (p-xylene) from aqueous solution. Pure CNTs were impregnated with iron oxides nanoparticles using wet impregnation technique. Various characterization techniques including thermogravimetric analysis, scanning electron microscopy, elemental dispersion spectroscopy, X-ray diffraction, and nitrogen adsorption analysis were used to study the thermal degradation, surface morphology, purity, and surface area of the materials. Batch adsorption experiments show that iron oxide impregnated CNTs have higher degree of removal of p-xylene (i.e., 90%) compared with toluene (i.e., 70%), for soaking time 2 h, with pollutant initial concentration 100 ppm, at pH 6 and shaking speed of 200 rpm at 25°C. Pseudo-second-order model provides better fitting for the toluene and p-xylene adsorption. Langmuir and Freundlich isotherm models demonstrate good fitting for the adsorption data of toluene and p-xylene.

Light-controllable dispersion and recovery of graphenes and carbon nanotubes using a photo-switchable surfactant

Nanoscale ◽  
2016 ◽  
Vol 8 (13) ◽  
pp. 6969-6974 ◽  
Author(s):  
Thomas M. McCoy ◽  
Amelia C. Y. Liu ◽  
Rico F. Tabor
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Surfactant Molecule ◽  
Reduced Graphene ◽  
Carbon Based Nanomaterials ◽  
Aqueous Dispersibility ◽  
Carbon Based

The aqueous dispersibility of carbon-based nanomaterials, namely graphene oxide (GO), reduced graphene oxide (rGO) and carbon nanotubes (CNTs), can be controlled by light via the photoisomerisation of a photoswitchable surfactant molecule adsorbed to the surface of these materials.

scholarly journals Adsorption and removal of bisphenol A from aqueous solution by p-phenylenediamine modified magnetic graphene oxide

2017 ◽  
Vol 82 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Xiaosheng Tang ◽  
Ping Tang ◽  
Shihui Si ◽  
Liangliang Liu
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Bisphenol A ◽  
Adsorption Capacity ◽  
Infrared Spectrometry ◽  
Maximum Adsorption Capacity ◽  
Adsorption Ability ◽  
Magnetic Graphene Oxide ◽  
Magnetic Graphene ◽  
Kinetics And Isotherms

p-Phenylenediamine functionalized magnetic graphene oxide nanocomposites (PPD-MGO) were prepared and utilized in the adsorption and removal of bisphenol A in aqueous solution. The novel nanomaterials were characterized by transmission electron microscopy (TEM), Fourier infrared spectrometry (FT-IR) and vibrating sample magnetometer (VSM). The factors affected the adsorption of bisphenol A including adsorption time, temperature and pH of solution, adsorption kinetics and isotherms were all investigated. The results showed that PPD-MGO nanomaterial exhibited good adsorption ability for bisphenol A and good resuability. The maximum adsorption capacity reached 155.0 mg g-1 at 45?C and pH 7. The removal rate was 99.2 % after three times of adsorption with new nanomaterials. After five cycles adsorption, the adsorption capacity of PPD-MGO remained at 94.0 %. The adsorption of bisphenol A was found that fitted pseudo second order kinetics equations and the Freundlich adsorption model. The experimental results showed the PPD-MGO nanomaterial had a good adsorption ability to remove organic compounds in aqueous solution.

Langmuir hydrogen dissociation approach in radiolabeling carbon nanotubes and graphene oxide

2016 ◽  
Vol 104 (8) ◽  
Author(s):  
Gennadii A. Badun ◽  
Maria G. Chernysheva ◽  
Anastasia V. Grigorieva ◽  
Elena A. Eremina ◽  
Alexander V. Egorov
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Specific Radioactivity ◽  
Single Walled Carbon Nanotubes ◽  
Radioactive Isotopes ◽  
Single Layer Graphene ◽  
Single Walled Carbon ◽  
Hydrogen Dissociation ◽  
Walled Carbon Nanotubes ◽  
Carbon Based

AbstractCarbon-based nanomaterials have piqued the interest of several researchers. At the same time, radioactive labeling is a powerful tool for studying processes in different systems, including biological and organic; however, the introduction of radioactive isotopes into carbon-based nanomaterial remains a great challenge. We have used the Langmuir hydrogen dissociation method to introduce tritium in single-walled carbon nanotubes and graphene oxide. The technique allows us to achieve a specific radioactivity of 107 and 27 Ci/g for single-layer graphene oxide and single-walled carbon nanotubes, respectively. Based on the analysis of characteristic Raman modes at 1350 and 1580 cm

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