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Effect of Inherent Anatomy of Plant Fibers on the Morphology of Carbon Synthesized from Them and Their Hydrogen Absorption Capacity
MadhuriSharon, MaheshwarSharon 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2012, Vol.13 No.3 5 161-166 (6 pages)
of Carbon Synthesized from Them and Their Hydrogen Absorption Capacity Madhuri Sharon ♠ and Maheshwar Sharon N.S N. Research Center for Nanotechnology and Bio-Nanotechnology, Jambhul Phata, SICES College, Ambernath (W), 421 504, Maharashtra, India Received 23 March 2012 Accepted 15 May 2012 *Corresponding Author E-mail: sharonmadhuri@gmail.com Tel: +91-9552599207 Open Access pISSN: 1976-4251... -
Potential of Using Ginger Essential Oils-Based Nanotechnology to Control Tropical Plant Diseases
Adamu Abdullahi, Khairulmazmi Ahmad, Intan Safinar Ismail, Norhayu Asib, Osumanu Haruna Ahmed, Abubakar Ismaila Abubakar, Yasmeen Siddiqui, Mohd Razi Ismail 한국식물병리학회 The Plant Pathology Journal 21 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 6호 1 515-535 (21 pages)
system because higher surface improves absorption rate and also reduces volatility, thus increasing bioavailability and active ingredient absorption, (2) no possible intrinsic creaming, flocculation, coalescence, and sedimentation, because they are thermodynamically and kinetically stable, (3) they reduce volatility, thus increasing absorption rate and amount, (4) their formulation can be... Essential oils (EOs) have gained a renewed interest in many disciplines such as plant disease control and medicine. This review discusses the components of ginger EOs, their mode of action, and their potential nanotechnology applications in controlling tropical plant diseases. Gas chromatography-mass spectroscopy (GC-MS), high-performance liquid chromatography, and headspace procedures are commonly used to detect and profile their chemical compositions EOs in ginger. The ginger EOs are composed... -
Relationships between dielectric properties and characteristics of impregnated and activated samples of potassium carbonate- and sodium hydroxide-modified palm kernel shell for microwave-assisted activation
Norulaina Alias, Muhammad Abbas Ahmad Zaini, Mohd Johari Kamaruddin 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 9 62-72 (11 pages)
on the characteristics of the material [5]. The ε’ increased with the tem- perature because of the improvement in the ionic mobility of the bound water in the material by reducing the moisture level [5,18]. Consequently, the decrease of the tan δ value depicts a good microwave energy absorption ability of a material [2]. The increase of tan δ with the increasing temperature could be a... impregnation ratios. The materials were characterized by moisture content, carbon content, ash content, thermal profile and functional groups. The dielectric properties were examined using an open-ended coaxial probe method at various microwave frequencies (1?6 GHz) and temperatures (25, 35, and 45°C). The results show that the dielectric properties varied with frequency, temperature, moisture content, carbon content and mass ratio of the ionic solids. PKSK1.75 (PKS impregnated with K2CO3 at a... -
Removal of chromium from tannery wastewater by electrosorption on carbon prepared from peach stones: effect of applied potential
Mounir Ziati, Fariza Khemmari, Mohamed Kecir, Sabir Hazourli 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 10 81-85 (5 pages)
a dark, cool place (4°C) to minimize chemical modifcation. The chromium concentration was analyzed by atomic absorption (AA spectrom- eter; Solaar Thermo Elemental, USA). 2.2. Preparation of activated carbon from peach stones The peach stones taken as raw material do not have a charcoal structure or texture (specifc surface area, surface functions, po- rosity) that would make them capable of... The objective of this study is the removal of chromium from tannery wastewater by electrosorption on carbon prepared from lignocellulosic natural residue "peach stones' thermally treated. The followed steps for obtaining coal in chronological order were: cleaning, drying, crushing and finally its carbonization at 900°C. The characterization of the carbon material resulted in properties comparable to those of many coals industrially manufactured. The study of the dynamic adsorption of chromium... -
Phenylethynyl-terminated polyimide, exfoliated graphite nanoplatelets, and the composites: an overview
Donghwan Cho, Lawrence T. Drzal 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 1 1-11 (11 pages)
[27,28], as well as structure identifcation [29,30] of polyimides. The imidization of PETI-5 has been monitored by examin- ing the disappearance and appearance of the most characteristic infrared absorption bands, and by monitoring the variation of representative amide acid and imide peaks observed via imidi- zation, during cure of PETI-5 at different temperatures. In Fig. 2, the ΔT (%) values... In efforts to characterize and understand the properties and processing of phenylethynyl-terminated imide (LaRC PETI-5, simply referred to as PETI-5) oligomers and polymers as a high-temperature sizing material for carbon fiber-reinforced polymer matrix composites, PETI-5 imidization and thermal curing behaviors have been extensively investigated based on the phenylethynyl end-group reaction. These studies are reviewed here. In addition, the use of PETI-5 to enhance interfacial adhesion between... -
Comparative electrochemical study of sulphonated polysulphone binded graphene oxide supercapacitor in two electrolytes
Harish Mudila, M.G.H. Zaidi, Sweta Rana, S. Alam 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.18 7 43-48 (6 pages)
DCM with constant stirring over 2 h, until ..PAGE:3 Comparative electrochemical study of sulphonated polysulphone binded GO supercapacitor 45 http://carbonlett.org and 1628.79 (δ OH), which were attributed to the presence of absorbed moisture [14]. GO indicated characteristic absorptions at ~3333 (v OH), 1723 (v COOH), 1613 (remaining sp 2-char- acter), 1378 (v COC), 1221.20 (C-O for oxirane),... Sulphonated polysulphone (SPS) has been synthesized and subsequently applied as binder for graphene oxide (GO)-based electrodes for development of electrochemical supercapacitors. Electrochemical performance of the electrode was investigated using cyclic voltammetry in 1M Na2SO4 and 1M KOH solution. The fabricated supercapacitors gave a specific capacitance of 161.6 and 216.8 F/g with 215.4 W/kg and 450 W/kg of power density, in 1M Na2SO4 and 1M KOH solutions, respectively. This suggests that... -
Effects of cross-linking methods for polyethylene-based carbon fibers: review
Kwan-Woo Kim, Hye-Min Lee, Jeong-Hun An, Byoung-Suhk Kim, Byung-Gak Min, Shin-Jae Kang, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 24 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 2 147-170 (24 pages)
in the absorption intensity of the me- thoxysilane groups, may not provide a direct cross-linking value, but the technique is non-destructive and presents meaningful information on the progress of the silane-water cross-linking reaction. The test is also less time consuming and needs no solvent, so is more environmentally friendly compared to the gel content determination and solvent up- the... In recent decades, there has been an increasing interest in the use of carbon fiber reinforced plastic (CFRP) in aerospace, renewable energy and other industries, due to its low weight and relatively good mechanical properties compared with traditional metals. However, due to the high cost of petroleum-based precursors and their associated processing costs, CF remains a specialty product and as such has been limited to use in high-end aerospace, sporting goods, automotive, and specialist... -
Removal of methylene blue using lemon grass ash as an adsorbent
Harminder Singh, Dawa Tshering B 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 6 105-112 (8 pages)
the pseudo-second-order rate constant of adsorption mg/g/min [22]. 3. Results and Discussion 3.1. Characterization of adsorbents 3.1.1. FT-IR FT-IR spectra are shown in Fig. 1. The absorption peak at 3429.56 corresponds to -OH stretching vibrations, the peaks at 1612.54 cm -1 and 1381.08 cm -1 correspond to C=C stretching and CH3 bending vibration, and the peak at 1103.32 is C-O stretch- ing... Wastewater from textile industries is a major cause of water pollution in most developing countries. In order to address the issues of water pollution and high cost for treatment processes, the use of an inexpensive and environmentally benign adsorbents has been studied. The objective was to find a better alternative to the conventional methods. Lemon grass waste (ash) collected from a lemon grass stream distillation subunit in Bhutan was tested for dye removal from aqueous solutions. The study... -
Superhydrophobic carbon-based materials: a review of synthesis, structure, and applications
Long-Yue Meng, Soo-Jin Park 한국탄소학회 Carbon Letters 16 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 5 89-104 (16 pages)
chloroform absorption capacity of 165 times their own weight (1.86 ton m -3) [31,50-52]. Second, various functional groups or additional organic/inorganic materials can be intro- duced to remarkably vary surface wettability [53-55]. For ex- ample, Zeng et al. [32] and Charinpanitkul et al. [52] reported a simple method to produce CNT-based flms with exceptional su- perhydrophobicity and impact... Materials with appropriate surface roughness and low surface energy can form superhydrophobic surfaces, displaying water contact angles greater than 150°. Superhydrophobic carbon-based materials are particularly interesting due to their exceptional physicochemical properties. This review discusses the various techniques used to produce superhydrophobic carbon-based materials such as carbon fibers, carbon nanotubes, graphene, amorphous carbons, etc. Recent advances in emerging fields such as... -
Modifications of mechanical, thermal, and electrical characteristics of epoxy through dispersion of multi-walled carbon nanotubes in supercritical carbon dioxide
MGH ZAIDI, Sanjeev Joshi, Manoj Kumar, Deepak Sharma, Ashwin Kumar, Sarfaraz Alam, Prakash Sah 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2013, Vol.14 No.4 4 218-227 (10 pages)
the absorption maxima centered at around 286 nm of the formulations of MWCNT/epoxy resin prepared at various concentrations in SCC. If MWCNTs are dispersed in epoxy res- in on a scale of nano-sized particles, the respective formulations should evince higher absorbance at the same concentration of MWCNTs due to absorption on the interfaces between the CNTs and the epoxy resin. With pressure of...