Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
9
1
2016
02
01
Synthesis, Characterization and Application of Nano-composite Silica Aerogel- Egg Shell for Dye Removal of Colored Wastewater
1
16
EN
M. E.
Olya
Department of Environmental Research, Institute for Color Science and Technology
olya-me@icrc.ac.ir
M.
Madadi
Department of chemistry, Islamic Azad University
meo_ir@yahoo.com
F.
Tadayon
Department of Chemistry, Islamic Azad University
maedeh_v2000@yahoo.com
10.30509/pccc.2016.75870
In the present study, silica aerogel- egg shell was synthesized for dye removal of colored wastewater. The nano composite structure was characterized by Fourier transform infrared spectra FTIR and scanning electron microscope SEM.The ability of nano composite absorption was assessed for removal basic violet 16BV16 dye from aqueous solutions and was compared with two other adsorbents such as egg shell and silica aerogel. The adsorbents evaluated for removal of dye under different pH, temperature, adsorbent dosage and contact time. The optimum pH dye removal by nano composite was 8, while the optimum pH for two other adsorbents of BV16 was about 12. Optimum temperature, adsorbent dosage and contact time for dye removal was 35 °C, 0.1g and 90 min respectively. The experimental data were analyzed with Langmuir and Freundlich isotherm models and was observed that synthesized adsorbents are best fitted by Freundlich equation. The results suggest that this method is a beneficial procedure for dye removal of colored wastewater.
Basic violet 16,Eggshell,Nano composite,Silica Aerogel
https://pccc.icrc.ac.ir/article_75870.html
https://pccc.icrc.ac.ir/article_75870_ae1ce535a9a3e3f11149b5e4c265c108.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
9
1
2016
02
01
A New Model Selection Test with Application to the Censored Data of Carbon Nanotubes Coating
17
28
EN
H.
Panahi
Department of Mathematics and Statistics, Lahijan branch, Islamic Azad University
panahi@liau.ac.ir
S.
Asadi
Department of Mechanical Engineering, Payame Noor University (PNU)
s_asadi@pnu.ac.ir
10.30509/pccc.2016.75871
Model selection of nano and micro droplet spreading can be widely used to predict and optimize of different coating processes such as ink jet printing, spray painting and plasma spraying. The idea of model selection is beginning with a set of data and rival models to choice the best one. The decision making on this set is an important question in statistical inference. Some tests and criteria are designed to answer to this question that which of the rival models is the best one. The purpose of this article is to propose a new interval say tracking interval for comparing the two rival models and examine its suitability in the spread data of carbon nanotubes coating. The proposed interval can be used for non-nested or nested models and whether both, one or neither is mis-specified. An important implication of the present study is that if the rival models are really close, then the proposed interval instead of the other tests can be determined the equivalent models under censored data.
Carbon Nanotube,Generalized Type II hybrid censoring,Likelihood ratio statistic,Missing information principle,Spray coating,Spread data
https://pccc.icrc.ac.ir/article_75871.html
https://pccc.icrc.ac.ir/article_75871_49f60caa9607209e9074b748d94275f5.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
9
1
2016
02
01
The effect of Inorganic Nanoparticles on Camouflage Properties of Cotton/Polyester Fabrics
29
40
EN
H.
Jafari
Department of Textile Engineering, Yazd University
jaafari67@yahoo.com
M.
Khajeh mehrizi
Department of Textile Engineering, Yazd University
mkhajeh@yazd.ac.ir
S.
Fattahi
Department of Textile Engineering, Yazd University
sfattahi@yazd.ac.ir
10.30509/pccc.2016.75872
Drawing upon reflectance behavior of woodland colors involving dark brown in the UV-Vis-IR bands, two colored pigments were used to print cotton/polyester Co/PET goods. Inorganic nanoparticles of TiO2, ZnO and AL2O3 were also loaded onto the printing formulation. The reflectance profile of treated samples was studied using Jasco V-670 reflectance spectrophotometer. SEM analysis of printed fabrics and the effect of increasing inorganic nanoparticles on rubbing, light and washing fastness with colorimetric values of printed samples as well as the result of nanoparticles on wettability and air permeability of printed samples were investigated. Adjusting the reflectance profile of dark brown color was successfully applied using colored pigments along with the nanoparticles. The results indicate that the presence of TiO2 and ZnO nanoparticles in load limit of 0.25-1 g/kg in printing pastes made significant changes in the behavior of IR band though only a slight change in visible reflectance of printed fabrics was found. The samples containing nanoparticles showed great fastness levels in washing, rubbing and light fastness experiments and a considerable increase in wettability of printed fabrics. Furthermore, air permeability of printed fabrics containing nanoparticles was found superior to samples printed free of nanoparticles.
Camouflage,Nanoparticles,SEM,TiO2,ZnO,Al2O3
https://pccc.icrc.ac.ir/article_75872.html
https://pccc.icrc.ac.ir/article_75872_012b94db566860178825e382f35f9844.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
9
1
2016
02
01
Fabrication and study of structural, optical and electrical properties of UV curable conductive polyurethane acrylate films containing polyaniline-Co3O4 nanocomposites
41
52
EN
Z.
Hesari
Department of Chemistry, , Science and Research Branch, Islamic Azad University
zeinab.hesari@yahoo.com
B.
Shirkavand Hadavand
0000-0001-7809-7330
Departments of Resin and Additives, Institute for Color Science and Technology
shirkavand@icrc.ac.ir
M.
Mahmoodi Hashemi
Department of Chemistry, , Sharif University of Technology
mhashemi@sharif.edu
10.30509/pccc.2016.75873
In this research, Novel UV curable conductive nanocomposites containing urethane acrylate and PANi-Co3O4 nanocomposite have been prepared. At first, PANi- Co3O4 nanocomposites have been synthesized and then PUA-PANi-Co3O4 nanocomposites films were prepared by ultraviolet radiation. UV-Vis and FT-IR studies confirm that there was strong chemical interaction between PANi and Co3O4 nanoparticles, which caused the shifting of UV and FT-IR characteristic bands. The morphological studies of the PANi-Co3O4 nanocomposites showed uniform distribution of Co3O4 nanoparticles in PANi matrix, also SEM images of the PUA-PANi-Co3O4 nanocomposites films indicated distribution PANi- Co3O4 nanocomposites in PUA matrix. Electrical conductivity measurements of PANi-Co3O4 nanocomposites revealed that the conductivity of PANi decreased with adding content of Co3O4 NPs, also the conductivity of PUA increased with adding content of PANi-Co3O4 nanocomposites.
UV cure,Urethane acrylate,Polyaniline,Electrical conductivity
https://pccc.icrc.ac.ir/article_75873.html
https://pccc.icrc.ac.ir/article_75873_b48900b64cb71753b9c8bee1da2964a7.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
9
1
2016
02
01
EIS study of epoxy paints in two different corrosive environments with a new filler: rice husk ash
53
60
EN
M.
Azadi
Faculty of Materials and Metallurgical Engineering, Semnan University
mahbub.azadi@gmail.com
M. J.
Olya
Faculty of Materials and Metallurgical Engineering, Semnan University
mjavad.olya@gmail.com
M. E.
Bahrololoom
Department of Material Science and Engineering,, Shiraz University
bahrolom@shirazu.ac.ir
10.30509/pccc.2016.75874
In this paper, the corrosion behavior of the filled epoxy paint with the rice husk ash RHA on steel substrates in two different corrosive environments natural sea water and 2M sulfuric acid has been studied. Electrochemical impedance spectroscopy EIS was used to evaluate protective properties of different organic coating systems due to the different filler composition. RHA was prepared by heating rice husk at 700 º C for 3 hours. By adding RHA, as a new and natural filler, to the epoxy paint, the resistance to penetration of the solution was increased in both environments. The best filler for the sea water was the white RHA contained more silica in 20 wt. due to increasing the corrosion resistance for 3 times with respect to the unfilled epoxy paint. The black RHA contained more carbon- group increased the corrosion resistance of the epoxy paint in sulfuric acid when added in 20 wt.
EIS,epoxy paint,Rice Husk Ash,Sea water,acidic solution,corrosion
https://pccc.icrc.ac.ir/article_75874.html
https://pccc.icrc.ac.ir/article_75874_29ea1d8a2f540928241c567b36439532.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
9
1
2016
02
01
Acid azo dyes for efficient molecular photovoltaic: study of dye-sensitized solar cells performance
61
70
EN
M.
Hosseinnezhad
0000-0003-3351-0157
Center of Excellence for Color Science and Technology,Department of Organic Colorants, Institute for Color Science and Technology
hosseinnezhad-mo@icrc.ac.ir
S.
Moradian
Faculty of Polymer and Color Engineering,Amirkabir University of Technology, Center of Excellence for Color Science and Technology,Institute for Color Science and Technology
moradian@aut.ac.ir
K.
Gharanjig
0000-0002-0115-3557
Center of Excellence for Color Science and Technology,Department of Organic Colorants, Institute for Color Science and Technology
gharanjig@icrc.ac.ir
10.30509/pccc.2016.75875
In this paper we sensitized three free-metal azo days Dye 1, Dye 2 and Dye 3 based on 1,8-naphthalimide with n-propyl as the electron donor group. We used sulfonic acid and hydroxyl substituents as the electron acceptor anchoring group in synthesized dyes. The proposed dyes were sensitized from acenaphthene as the starting material by standard reactions and characterized by different techniques such as melting point, FTIR, 1HNMR, elemental analysis and UV-Visible spectroscopy after purification. Spectrophotometric measurements of the azo dyes in solution and on a TiO2 substrate were carried out in order to assess changes in the status of the dyes. The wavelength of maximum absorption for Dye 1, Dye 2 and Dye 3 in solution are 530 nm, 568 nm and 550 nm and on TiO2 films are 552 nm, 591 nm and 575 nm, respectively. Finally, the proposed dyes used as sensitizer in a dye solar cell structure and their photovoltaic properties investigated. The Conversion efficiency for Dye 1, Dye 2 and Dye 3 are 2.11 and 2.32 and 2.17, respectively.
Dye,sensitized solar cells,Azo Dyes,Photovoltaic materials,Power conversion efficiencies,1,8,Naphthalimide
https://pccc.icrc.ac.ir/article_75875.html
https://pccc.icrc.ac.ir/article_75875_503a512f7f57bbca9fcfcefba38eb2d4.pdf