Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250201Editorial Board and Contents82167ENJournal Article20250112https://pccc.icrc.ac.ir/article_82167_0054819a132c8110651eb138334315f4.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250901Using Recycled Magnetite from Concrete Waste as a Pigment for Flexographic Ink188208410.30509/pccc.2025.167455.1355ENM.AtaeefardDepartment of Printing Science and Technology, Institute for Color Science and Technology, P.O. Box: 32465-654, Tehran, IranM.Salehi BarmiFormulation and Development of Applications of Chemical and Polymeric Compounds Research Group, Chemical, Polymeric and Petrochemical Technology Development Research Division, Research Institute of Petroleum Industry, P.O. Box: 1599653111, Tehran, IranJournal Article20250125Magnetite can be used as an additive and colorant for ink preparation. This material can be produced using several methods; however, its recycling is a safer and more environmentally friendly approach due to resource scarcity. Waste management and recycling are now major concerns due to the rise in industrial production. The current work offered a viable method for recycling magnetite particles, considered residues of micro-silica preparation in concrete production factories. The resulting magnetite was utilized as a pigment in flexographic water-based ink as a replacement for the virgin pigments in an ink formulation. X-ray diffraction (XRD) patterns, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), particle size analysis (PSA), rheology measurement, and color characteristics were used to characterize the ink and the recovered pigment. The results showed that the recycled magnetite has a larger particle size than the original pigment. In addition, the blackness and printability of the prepared ink are superior to the original black ink. Results showed a small reduction in optical density (O.D.) of the ink made from recycled pigment in comparison with virgin ink. Despite these lower O.D. values, it is still suitable in the appropriate range for use in applications without changes in viscosity parameters.https://pccc.icrc.ac.ir/article_82084_ad996004f022a0f55c57181fe9b74ff7.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250901Corrosion Protection of Mild Steel in Acidic Media by a Triazole-Based Inhibitor: Mechanistic Insights and Performance Evaluation9228209810.30509/pccc.2025.167535.1392ENN. A.Al-AliBiomedical Engineering Department, University of Technology, Baghdad P.O. Box: 10001, Baghdad, IraqA.Al-AmieryBiomedical Engineering Department, College of Engineering, Al-Ayen University (AUIQ), Nile St, Nasiriyah
P.O. Box: 64001, Dhi Qar, IraqJournal Article20250429The present work investigates the corrosion inhibition behavior of 4-(4-methoxybenzylidene)amino-5-pyridin-3-yl-3-thio-1,2,4-triazole (MAPTT) on mild steel in 1 M HCl using the weight loss method over a range<br />of concentrations (0.1-1.0 mM) and immersion durations (1-48 hours).<br />The inhibition efficiency (IE%) was found to rise with increasing inhibitor concentration, achieving a maximum value of 92.7% at 0.5 mM after 48 hours. Although a gradual improvement in efficiency was observed with longer <br />immersion periods, it tended to stabilize after 10 hours. Investigations at different temperatures (303–333 K) over a 5-hour immersion period revealed a slight improvement in inhibition efficiency, suggesting good thermal stability of MAPTT. The process of adsorption obeyed Langmuir model, referring to a combination of chemical and physical adsorption mechanisms. In comparison with previously reported inhibitors, MAPTT demonstrated superior performance, attributed to its strong adsorption and stable protective film formation at elevated temperatures, ensuring sustained corrosion resistance. Density Functional Theory (DFT) predictions, having the analysis of HOMO and LUMO orbitals, identified active adsorption centers within the molecule. Furthermore, the calculated band gap in addition to electron transfer fraction (Δ𝑁) supported the strong interactions between MAPTT and specimen surface. The excellent correlation of experimental techniques and theoretical DFT calculations highlights the promise of MAPTT as a thermally robust and highly efficient corrosion inhibitor for industrial use in corrosive solution. https://pccc.icrc.ac.ir/article_82098_6104d1589009e4da78fbdc28ebae9905.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250901Isotherm, Kinetic and Thermodynamic Investigation of Pb(II) Adsorption onto Magnetic Activated Carbon Fabric (MACF)23368210110.30509/pccc.2025.167528.1388ENS.Kazemi MoghadamDepartment of Textile Engineering, Amirkabir University of Technology, P.O. Box: 15875-4413, Tehran, IranF.DadashianDepartment of Textile Engineering, Amirkabir University of Technology, P.O. Box: 15875-4413, Tehran, IranM.MontazerDepartment of Textile Engineering, Amirkabir University of Technology, P.O. Box: 15875-4413, Tehran, IranM.AbediDepartment of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box: 33535-111, Tehran, IranJournal Article20250503This study focuses on enhancing activated carbon fabric (ACF) designed for the adsorption of lead ions. Magnetic-activated carbon fabric (MACF) was produced from cotton fabric by a sonication technique and iron salt to improve its efficiency in Pb²⁺ adsorption from aqueous solutions. BET, XRD, SEM, FT-IR, and VSM analyses were applied to characterize MACF and ACF. The optimal conditions were pH = 4, an initial Pb²⁺ concentration of 50 mg/L, and an adsorbent dosage of 1.5 g/L, with the process conducted at 20±1 °C, 200 rpm for 1 hour for the removal of lead ions. Adsorption equilibrium data, including thermodynamics, isotherms, and kinetic studies, were analyzed. Among the various isotherm models, the Freundlich model provided the best fit for MACF adsorption of Pb²⁺, with the highest regression value of 0.8477. MACF achieved an 84 % removal efficiency of Pb²⁺, significantly outperforming ACF, which only achieved 4 %. The use of iron salts in the sonosynthesis process notably enhanced the ACF adsorbent, making MACF a cost-effective and high-performance substitute for conventional activated carbons. Its versatility in shaping, sizing, and ease of separation from environmental or filtration systems positions it as a superior solution for eliminating heavy and toxic metals from aqueous solutions. https://pccc.icrc.ac.ir/article_82101_b00da6fecc58a938293a54876467f7d9.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250901Simulation Analysis of Dye-Sensitized Photovoltaic Cells Performance Using Three Moroccan Natural Dyes37458210410.30509/pccc.2025.167563.1400ENA.AboulouardResearch Laboratory in Physics and Engineering Sciences, Sultan Moulay Slimane University, P.O. Box: 592, Beni-Mellal, MoroccoHigher School of Education and Training, Sultan Moulay Slimane University, Meghila, P.O. Box: 568, Beni-Mellal, MoroccoScience and Engineering Lab for Energy, National School of Applied Sciences, Chouaib Doukkali University, P.O. Box: 5096, El Jadida, MoroccoDepartment of Engineering Sciences, Faculty of Engineering and Architecture, Izmir Katip Celebi University, 35620 Izmir, TurkeyM.JouaitiFaculty of ScFaculty of Sciences and Techniques, Sultan Moulay Slimane University, Beni-Mellal, Moroccoiences and Techniques, Sultan Moulay Slimane University, Beni-Mellal, MoroccoPrivate University of Marrakech, P2009, Marrakech 40000, MoroccoM.ElidrissiTCPAM, Polydisciplinary Faculty, Sultan Moulay Slimane University, P.O. Box: 592, Beni-Mellal MoroccoJournal Article20250607In recent years, increasing focus on environmental sustainability and the circular economy has sparked a resurgence of interest in incorporating eco-friendly and recyclable materials across numerous industries. Creating advanced dye-sensitized solar cells (DSSCs) employing natural dyes has a significant impact in fulfilling the need for environmentally sustainable technologies. In this study, we use MATLAB to examine the electrical features of DSSCs. The study relies on a model of electron diffusion in a porous titanium dioxide thin film and the absorption coefficient of local dyes. These latter are extracted from grapes, pomegranates and Moroccan roses. In particular, we investigate the absorbance of pigments by a spectrophotometer and the electrical features of DSSCs. The findings indicate that the photovoltaic performance metrics, such as maximum power voltage, short-circuit current density, open-circuit voltage, and maximum power current, are superior for pomegranate dye compared to grape and Moroccan rose dyes. This superiority is attributed to the higher absorption coefficient of the pomegranate dye, which efficiently absorbs incident light and generates excitons. https://pccc.icrc.ac.ir/article_82104_02f5d2e148644a5a5ea01bfc7d3e5472.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250901Investigating the Effect of Zinc Oxide Nanoparticles on the Absorption of Ultraviolet Radiation for Enhancing the Efficacy of Sunscreen Products47658208510.30509/pccc.2025.167471.1365ENM. GozalabadGhorbaniDepartment of Material and Metallurgical Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran2 Graphene and Advanced Materials Laboratory (GAMLab.), Amirkabir University of Technology, Tehran, IranGraphene and Advanced Materials Laboratory (GAMLab.), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, IranA.GhazitabarDepartment of Inorganic Pigments and Glazes, Institute for Color Science and Technology, P. O. Box: 16765-654, Tehran, Iran0000-0002-2458-6726F.GholamiDepartment of Material and Metallurgical Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran2 Graphene and Advanced Materials Laboratory (GAMLab.), Amirkabir University of Technology, Tehran, IranGraphene and Advanced Materials Laboratory (GAMLab.), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, IranM.NaderiDepartment of Material and Metallurgical Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran2 Graphene and Advanced Materials Laboratory (GAMLab.), Amirkabir University of Technology, Tehran, IranGraphene and Advanced Materials Laboratory (GAMLab.), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, IranD. FatmehsariHaghshenasDepartment of Material and Metallurgical Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran2 Graphene and Advanced Materials Laboratory (GAMLab.), Amirkabir University of Technology, Tehran, IranGraphene and Advanced Materials Laboratory (GAMLab.), Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, IranJournal Article20250223The degradation of the ozone layer and the consequent increase in ultraviolet (UV) radiation exposure have heightened interest in the development of mineral-based sunscreens. This study investigates the absorption characteristics of ultraviolet waves in mineral-based sunscreens formulated with various nanostructures of Zinc Oxide (ZnO), characterized by differing sizes (ranging from 40 to 70 nm) and morphologies, including plate-like, spherical, hedgehog-shaped, and irregular forms (predominantly rods). The protective efficacy against ultraviolet radiation was assessed using a visible-ultraviolet spectrometer and a diffuse reflectance spectrometer. The results indicate that most morphologies and dimensions of ZnO nanoparticles enhance the surface area available for the reflection and scattering of ultraviolet rays, thereby increasing the level of protection. Notably, the Z1 sample, exhibiting the plate-like morphology with a plate size of 71 nm, demonstrated the highest absorption rate. Additionally, the study reveals that increasing the concentration of ZnO in sunscreen formulations up to a critical threshold of 15 wt. % enhances UV protection; however, further increases to 21 wt. % result in a decline in protective efficacy. The sun protection factor (SPF) for the Z1 sample, which exhibited the highest level of protection, was calculated to be 47, indicating its potential suitability for commercialization in mineral-based sunscreen products. https://pccc.icrc.ac.ir/article_82085_046ff1c388cfb63dcb489fefb5cfdb90.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250901Natural Corrosion Inhibitor from Cistanche Tubulosa Extract for Carbon Steel in HCl: Gravimetric and Electrochemical Characterization67828210510.30509/pccc.2025.167509.1383ENA.TalfanaDepartment of Process Engineering, Higher School of Technology, Sultan Moulay Slimane University, P.O. Box: 23000, Beni-Mellal, MoroccoS.KerouadDepartment of Process Engineering, Higher School of Technology, Sultan Moulay Slimane University, P.O. Box: 23000, Beni-Mellal, MoroccoIForsalDepartment of Process Engineering, Higher School of Technology, Sultan Moulay Slimane University, P.O. Box: 23000, Beni-Mellal, MoroccoW.KotmaniDepartment of Process Engineering, Higher School of Technology, Sultan Moulay Slimane University, P.O. Box: 23000, Beni-Mellal, MoroccoL.KabiriDepartment of Process Engineering, Higher School of Technology, Sultan Moulay Slimane University, P.O. Box: 23000, Beni-Mellal, MoroccoA.ElHaramiDepartment of Process Engineering, Higher School of Technology, Sultan Moulay Slimane University, P.O. Box: 23000, Beni-Mellal, MoroccoM.GhazouiDepartment of Chemistry and Environment, Faculty of Science and Technology, Sultan Moulay Slimane University, P.O. Box: 23000, Beni-Mellal, MoroccoJournal Article20250404The escalating environmental concerns associated with toxic inorganic inhibitors have spurred the exploration of green alternatives for Oxidation prevention in acid pickling processes. The corrosion behavior of Carbon steel (CS) in 1 M HCl solution was investigated via weight loss (WL), potentio-dynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS) techniques. The influence of the eco-friendly corrosion inhibitor, cistanche tubulosa (CT), was evaluated. PDP measurements indicated that cistanche tubulosa exhibits mixed-type inhibitory properties, effectively reducing the corrosion rate of CS through adsorption onto its surface. This inhibitory effect resulted in an inhibition efficiency with a value higher than 92 % at 298 °K. The Langmuir isotherm model is the most acceptable one to describe the adsorption of extract on the surface of carbon steel. Scanning electron microscopy (SEM) was employed to characterize the morphology of the CS surface, confirming the layering of the barrier film on the CS surface and suggesting a chemisorption mechanism for cistanche tubulosa molecules. Additionally, Fourier-transform infrared spectroscopy (FTIR) analysis was performed to identify the functional groups responsible for the adsorption process. The temperature's influence on the anticorrosive efficiency was examined within the temperature interval of 298-328 °K. Results demonstrated an improvement in the ability to inhibit corrosion with an increase in inhibitor concentration and contact time, but this improvement decreased with increasing temperature.https://pccc.icrc.ac.ir/article_82105_475be27496f0cf1e2324e3937493de29.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250901Amylase Production Optimization and Textile Application of a Novel Bacillus Halotolerans SH1 Isolate from Textile Wastewater83958210810.30509/pccc.2025.167521.1387ENZ.ShahiDepartment of Textile Engineering, Yazd University, P.O. Box: 89195-741, Yazd, IranM.Khajeh MehriziDepartment of Textile Engineering, Yazd University, P.O. Box: 89195-741, Yazd, IranM. S.Mirbagheri FiroozabadDepartment of Biology, Yazd University, P.O. Box: 89195-741, Yazd, IranJournal Article20250422Textile wastewater usually contains toxic compound and a few bacteria survive in this condition. Microorganisms in textile wastewater can produce a variety of enzymes and biotechnology products. This study aimed to isolate bacteria that produce amylase and polyhydroxyalkanoates (PHAs) from textile waste. Both of these compounds are used in the textile industry. Amylase enzyme is used to enhance thread strength and PHAs for the packaging and production of suture thread, surgical meshes, cardiovascular fabrics, and conventional fibers. The highest enzyme activity was optimized using the response surface method (RSM). The isolate was identified as Bacillus halotolerans SH1 by determining the 16S rRNA gene sequence. Optimum conditions for maximum enzyme production (0.26 U/mg) were starch 5.5 g/L, temperature 37 °C, and incubation period 48 hours. The results showed that a PHA concentration of 0.27 g/L is obtained from this bacterium. The reduction in BOD, COD by bacteria was found to be 54.93 and 51.92 %, respectively. This study reports a new strain of Bacillus halotolerans SH1, isolated from toxic textile wastewater, which is capable of producing both PHA and α-amylase enzyme, while also significantly reducing BOD and COD levels, showing its multifunctional potential in environmental and industrial applications, especially in the textile industry. https://pccc.icrc.ac.ir/article_82108_9c588e1af0fdabac19dfc8b4a88acd36.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-213419120250901Self-healing Protective Coatings: A Review on the Principles, Chemistry, Recent Advances and Applications Outlook971128209610.30509/pccc.2025.167533.1391ENH.YariDepartment of Surface Coating and Corrosion, Institute for Color Science and Technology, P.O. Box: 16765-654, Tehran, Iran.P.KardarDepartment of Surface Coating and Corrosion, Institute for Color Science and Technology, P.O. Box: 16765-654, Tehran, Iran.R.AminiDepartment of Surface Coating and Corrosion, Institute for Color Science and Technology, P.O. Box: 16765-654, Tehran, Iran.Journal Article20250503The long-term functions (providing appearance and barrier protection for the underlying substrate) of polymeric protective coatings can be jeopardized by environmental damages (including corrosion and mechanical damage). Thus, self-healing coatings have emerged and developed to restore such functions in case of coating damage. Thus, a coating which can automatically repair itself (“self-healing coating”) can be favorable with self-recovery of properties (i.g. mechanical, electrochemical, etc.) and accordingly extend the durability of the coating. This review discusses both extrinsic (including capsules, hollow-fibers, corrosion inhibitor loaded reservoirs) and intrinsic (reversible physical bonds such as Diels-Alder bonds, ionomers, and supr-amolecular polymers) approaches. Additionally, the most recent advances in the field of self-healing coatings and their associated challenges were also investigated, and the future trends were also covered. Such novel smart coatings were discussed from various perspectives, including advantages and disadvantages compared to traditional coatings, triggering mechanisms, environmental aspects, and their potential practical applications in different sectors like electronics, aircraft, automobiles, construction, and more. https://pccc.icrc.ac.ir/article_82096_49ad998086b81ec1e363204c882266b9.pdf