@article { author = {Keyhani, A. and Nikpassand, M. and Zare Fekri, L. and Kefayati, H.}, title = {One-pot Synthesis of New Category of 2-aryl-quinazolinones Using of DSDABCO as an Efficient Heterocyclic Medium}, journal = {Progress in Color, Colorants and Coatings}, volume = {14}, number = {4}, pages = {233-240}, year = {2021}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2020.166733.1089}, abstract = {A series of 2-aryl-quinazolin-4(1H)-ones have been synthesized in short reaction times and excellent yields through one-pot reaction between isatoic anhydride, glycine and various aldehydes in the presence of DSDABCO (1,4-disulfo-1,4-diazoniabicyclo[2.2.2] octane chloride) as an efficient heterocyclic ionic liquid media at room temperature. This method offers many advantages such as green environment, mild conditions, excellent efficiency, simple method and reduction of environmental consequences. Using recyclable ionic liquid and no need to another solvent or catalyst is an important step in green chemistry. On the other hand, this method does not require heating and is done at room temperature. The ionic liquid was recovered and reused. To the best of our knowledge, this is the first report for the synthesis of a new library of quinazolin-4(1H)-ones derived from glycine as a natural substrate based on green chemistry conditions. The structures of 2-aryl-quinazolin-4(1H)-ones were confirmed by 1H, 13CNMR, HRMS and FTIR spectral data and elemental analyses. }, keywords = {one-pot reaction,2-aryl-quinazolin-4(1H)-one,glycine,Ionic Liquid}, url = {https://pccc.icrc.ac.ir/article_81728.html}, eprint = {https://pccc.icrc.ac.ir/article_81728_c5f0fc7ac4a3cc17298d52e197d910df.pdf} } @article { author = {Mahdi, M. M. and Tuj-Zohra, F. and Ahmed, S.}, title = {Dyeing of Shoe Upper Leather with Extracted Dye from Acacia Nilotica Plant Bark-An Eco-Friendly Initiative}, journal = {Progress in Color, Colorants and Coatings}, volume = {14}, number = {4}, pages = {241-258}, year = {2020}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2020.166673.1074}, abstract = {In recent years, the application of non-toxic and eco-friendly natural dyes for textile and leather coloration is getting interest among manufacturers and buyers due to the hazardous impact of conventional azo dyes. Natural dyes have extensive use in textiles, yet their application to leather is very limited. In this research, the prospect of using dye extracted from Acacia nilotica bark for dyeing of shoe upper leather was examined. Chrome-tanned goatskins were employed as raw material for dyeing with the extracted dye using drum dyeing method. The dyeing process was conducted with and without mordant, following pre-mordanting and post-mordanting techniques. Color analysis, various colorfastness tests, and determination of dye exhaustion rate were conducted to evaluate the dyeing quality. It was observed that the experimental dye imparted amber color to the leather that turned brown and gray upon mordanting with potash alum and ferrous sulfate, respectively. The dyed leather samples showed excellent colorfastness but moderate heat and light fastnesses. Mordanted dyed samples, especially the prr-mordanted dyed samples, possessed a better color intensity and more dye exhaustion rate. The leather samples dyed with extracted dye also increased the strength property of the leather and various color shades were produced by mordanting techniques. }, keywords = {Leather,Natural Dye,Acacia nilotica,Colorfastness,Eco-friendly}, url = {https://pccc.icrc.ac.ir/article_81727.html}, eprint = {https://pccc.icrc.ac.ir/article_81727_709f577b32c7ca2e8848f144ac133608.pdf} } @article { author = {Seifpanah Sowmehesaraee, M. and Ranjbar, M. and Abedi, M. and Rouhani, F. and Morsali, A.}, title = {The Effect of Zn (II) Containing Metal-Organic Frameworks on Perovskite Solar Cells}, journal = {Progress in Color, Colorants and Coatings}, volume = {14}, number = {4}, pages = {259-267}, year = {2020}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2020.166700.1081}, abstract = {In this study, we use metal-organic frameworks (MOFs), TMU-60 ([Zn (OBA)(L*). DMF]L*=5,6-di(pyridine-4-yl)-1,2,3,4 – tetrahydropyrazine) (compound I), and TMU-60-Cd (compound II), with excellent conductivity as additives in perovskite solution. The presence of cadmium in the structure of TMU-60-Cd can significantly enhance the conductivity of the framework. These frameworks can transfer the electron between the structures. Therefore, the use of these frameworks in perovskite solar cells could have a positive effect on electron transfer. However due to the creation of a lot of voids during the formation of perovskite layer, the power-conversion efficiency (PCE) of resulting PCSs were weaker than the pristine PCS. The results revealed that using even small amounts of TMU-60, and TMU-60-Cd caused a significant reduction in PCE, and the short current densities (Jsc), while improving the stability of the perovskite film, and the device. The absorption, and morphology of the new perovskite layer was also studied by UV–Vis spectroscopy, FE-SEM, and XRD.}, keywords = {Metal-organic framework,TMU-60,TMU-60-Cd,Perovskite,Solar cells,Additive}, url = {https://pccc.icrc.ac.ir/article_81729.html}, eprint = {https://pccc.icrc.ac.ir/article_81729_691b4086474c5bdc120336a5736869c0.pdf} } @article { author = {Manjula, S. and Arun, K. V.}, title = {Impact Strength of the Ni-P Coated Spring Steel with Varied Phosphate Content and Notch Orientation}, journal = {Progress in Color, Colorants and Coatings}, volume = {14}, number = {4}, pages = {269-280}, year = {2021}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2021.166701.1082}, abstract = {Spring steel is a prominent piece of material in the automotive, aerospace and marine engineering applications. The existence of crack like flaws cannot be precluded in any engineering structures. During the course of manufacturing or under service conditions, corner cracks are formed. In the present experimental investigation, the impact toughness of spring steel with flat and corner notches has been analyzed. Also, the surface roughness and micro hardness studies have been carried out. The samples were coated with electroless Ni-P coating with varied phosphate content from 5 to 15%. The specimen preparation and the experimentations have been carried out according to the ASTM standards. Low velocity pendulum impact testing has been adopted for the experimentation with the corner notched specimen placed diagonally in the anvil. Results have revealed that the face notched sample has lower impact toughness compared to the corner notched one. The micromechanism study has shown that, even though the impact toughness of the corner notched samples is high, their failure behavior is more dangerous and unpredictable. The Ni-P coating with 10 % phosphate showed high impact toughness and delayed fracture.}, keywords = {Impact strength,electroless Ni-P coating,Corner Notch,SEM,bonding strength}, url = {https://pccc.icrc.ac.ir/article_81742.html}, eprint = {https://pccc.icrc.ac.ir/article_81742_607fa2c8192dc5788a1faae80d85a825.pdf} } @article { author = {Khamseh, S. and Ganjaee Sari, M. and Alibakhshi, E. and Nemati, M.}, title = {Hydrogen-free Cu: Amorphous-C: N Coating on TC4 Titanium Alloy: The Role of Gas Ratio on Mechanical and Antibacterial Potency}, journal = {Progress in Color, Colorants and Coatings}, volume = {14}, number = {4}, pages = {281-291}, year = {2021}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2021.166770.1102}, abstract = {Ti-6Al-4V alloy, also called TC4, substrates are sputter-deposited by Cu: amorphous-C: N (Cu:a-C:N) thin coatings using planar magnetron sputtering physical vapor deposition device. Mixtures of argon and nitrogen at different ratios are selected as the sputtering atmosphere, and no hydrocarbon gas is used. Correlation of microstructure, morphology, surface properties, antibacterial characteristics, and mechanical performance of the coatings to the N2/Ar ratio are discussed. The outcomes from Raman spectroscopy confirm the construction of the DLC (Diamond Like Carbon) phase in the microstructure of the coatings. The thin coatings synthesized at higher N2/Ar ratios show more increased amount of sp 3 hybridization, improved wettability, higher internal stress, and enhanced mechanical properties, i.e., higher hardness. However, these are accompanied by lower antibacterial performance. Plastic hardness (H) value of the thin coatings increased from about 2 GPa to 13 GPa by increasing N2/Ar ratio. However, bacterial reduction percent of the thin coatings decreased from 100 to 65% as N2/Ar ratio increased. The resultant outcomes reveal the critical role of the N2/Ar ratio on tailoring the antibacterial properties of Cu: a-C: N thin coatings as well as mechanical ones.}, keywords = {Cu: amorphous-C: N,Thin coating,Magnetron sputtering,Surface properties,Antibacterial,Mechanical properties}, url = {https://pccc.icrc.ac.ir/article_81746.html}, eprint = {https://pccc.icrc.ac.ir/article_81746_8cf8089e8668e0e031f61cd319b94fdf.pdf} } @article { author = {Adeel, S. and Rehman, F. and Pervaiz, M. and Hussaan, M. and Amin, N. and Majeed, A. and Rehman, H.}, title = {Microwave Assisted Green Isolation of Laccaic Acid from Lac Insect (Kerria lacca) for Wool Dyeing}, journal = {Progress in Color, Colorants and Coatings}, volume = {14}, number = {4}, pages = {293-299}, year = {2021}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2021.166734.1090}, abstract = {The utilization of sustainable products in the applied field is the recent demand of the global community. In this work the colouring behavior of laccaic acid as a source of natural red dye obtained from lac insect has been studied for the dyeing of wool fabric under microwave treatment. The extract was prepared in acidic medium and stimulated through MW treatment up to 7 min and used to dye fabrics. For developing new shades, eco-friendly green mordants such as extracts of acacia and turmeric were employed along with chemical mordants for comparative studies. The obtained results reveal that extract made in acidic medium after exposure for 5 minutes. has given high colour strength onto un-irradiated fabric when employed for 65 minutes at 75 °C. The rating of fastness properties shows that bio-anchors have given good ratings under optimal conditions. It is inferred that this eco-friendly tool has not only increased the coloring yield of natural anthraquinone dye from lac but also the inclusion of bio-mordants has made the natural coloration process more sustainable.}, keywords = {Acacia,Lac,Microwave radiation,Sustainability,wool}, url = {https://pccc.icrc.ac.ir/article_81752.html}, eprint = {https://pccc.icrc.ac.ir/article_81752_3c2b8aa0faed647fd8ed176fe5acd0f9.pdf} } @article { author = {Abed, R. N. and Abed, A. R. N. and Yousif, E.}, title = {Carbon Surfaces Doped with (Co3O4-Cr2O3) Nanocomposite for High-Temperature Photo Thermal Solar Energy Conversion Via Spectrally Selective Surfaces}, journal = {Progress in Color, Colorants and Coatings}, volume = {14}, number = {4}, pages = {301-315}, year = {2021}, publisher = {Institute for Color Science and Technology (ICST)}, issn = {2008-2134}, eissn = {2383-1790}, doi = {10.30509/pccc.2021.166749.1098}, abstract = {Invention new thin films nano-coating to obtain high-level performance spectrally selective surfaces to enhance solar energy by spin and casting methods, thin films coating are deposited by these techniques on aluminum and glass substrates that were pre-cleaned. Nanocomposite thin film coating comprising (Co3O4:Cr2O3) and carbon to gain an economical coating. The coating has a high absorptivity of solar energy. Nanomaterials have been used in various concentration ratios to dope carbon, and Energy Dispersive Analysis (EDX) was used to determine carbon ash's chemical composition; SEM measured its practical size. Optical properties have been studied by the UV-Visible Spectra and reflectivity tests in a range from 250-1300 nm at room temperature. Absorbance coefficient, transmittance, reflectance, skin depth, optical density, optical energy gap (Eg), and Urbach energy of nanocomposite thin films have also been specified. The Eg of doped C has been measured with different concentration ratios of (Co3O4:Cr2O3) such as sample F (0.5:2.5/7), sample G (1:2/7), sample H (1.5:1.5/7), the sample I (2:1/7), and sample K (2.5:0.5/7) wt. %, the concentration of C is fixed for all samples (7) wt. %. The results revealed that the Eg is ranged (2.9-3.9 eV) and the absorptivity in the ranged (88-93.2 %) for all doped samples. The absorptivity values of nanocomposites are very close to semiconductor elements, which have high absorptivity to the wavelength intensity. The synthesized coating will be used over a flat plate collector as a trap to absorb solar energy for a highly feasible selective surface.}, keywords = {Cobalt oxide,Chromium oxide,Optical properties,Energy band gap,absorptivity}, url = {https://pccc.icrc.ac.ir/article_81750.html}, eprint = {https://pccc.icrc.ac.ir/article_81750_e5e01d34d9fc99c9228fecb358b0b5b1.pdf} }