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136 articles for “Crystal”
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Preparation and Evaluation of Nano pore Faujasite Membranes
Abstract: Nano pore Faujasite zeolite membranes were synthesized by in-situ hydrothermal method on porous ceramic tubes. Hydrothermal crystallization was carried out under an autogenously pressure and at a static condition of 100 oC. Molar composition of the starting gel of Faujasite zeolite membranes were NaX: SiO2/Al2O3=10-27, Na2O/Al2O3=4-9, H2O/Al2O3=250; NaY: SiO2/Al2O3=2.5-4, Na2O/SiO2=1.08-2, H2O/Na2O=30-200. X-ray diffraction (XRD) patterns of the membranes exhibited peaks corresponding to the support and the zeolite. The crystal species …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 2, 2017 · pp. 15–24 Read article
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Effects of Compatibilizer and Paper Sludge Content on the Performances of Thermoplastic Polymer Composites
Abstract: One of the environmental issues affecting third-world countries is the economic use of lignocellulose waste, which is now being researched. Paper sludge (PS) composites will allow for the effective use of a waste material that is currently burned or buried, as well as the ability to lower the cost of the composite that is created. In this study, the mechanical and thermalcharacteristics of environmentally friendly composites constructed from PS-reinforced recycled …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 2, 2022 · pp. 10–21 Read article
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Basic Fundamentals of Different Solar Cells, Solar Energy Materials and Photovoltaic Performances
Abstract: Solar cell is one of the thrust areas of modern technology in the field of renewable energy. Crystalline semiconductor wafer based solar cells (SCs) (thicknesses almost 200–300 μm) mainly crystalline-Si or GaAs based solar cells are playing the legend role in last few decades. With technological revolution, thin film SCs (thickness range 1–2 μm), dye-sensitized or Graetzel, organic/polymer and plasmonic solar cell respectively are known as 2nd,3rd, 4th and 5th …
Published in International Journal of Energetic Materials · Vol. 1, Issue 1, 2015 · pp. 1–9 Read article
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Blue Shift of Sol-gel Synthesized ZnO Nano-particles: Size Dependent Quantum Confinement Effect
Abstract: Zinc oxide nano-crystals with different size and shape were synthesized by sol-gel technique at 90°C. ZnO nano-particles show (100), (002), (101), (102), (110), and (103) crystalline orientation and strong band-edge emission at 408 nm. Grain size of ZnO nano-crystals varies from 4 nm to 20 nm due to variation of molar ratio of polyethylene glycol with zinc acetate during synthesis. ZnO nano-materials with grain size 4 nm and 8 nm …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 1, Issue 1, 2015 · pp. 8–15 Read article
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Mesomorphic Study of Achiral Hockey Stick- shaped Imine Linked Thiadiazole Compounds
Abstract: Achiral hockey stick-shaped molecules are a new extended set for calamitic rod-like liquid crystals,thiadiazole with Incorporation of a nitrogen linkage to the basic structures of a compound will acquaint another new property called photochromism along with liquid crystal because of the photo-isomerization of the -C=N linkage. Now, assuming such compounds also show the liquid crystalline property, then they will become multi-functional due to their photochromic property which might be taken …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 2, 2022 · pp. 41–50 Read article
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Sonochemical Synthesis of Copper Nanoparticles:Process Fundamentals, Scale-Up Challenges, andIndustrial Opportunities
Abstract: The sonochemical synthesis of copper nanoparticles (Cu NPs) has emerged as a powerful and widely investigated strategy in nanomaterials research, owing to the unique physicochemical conditions generated during ultrasonic irradiation. Acoustic cavitation induced by sonication produces transient microenvironments characterized by extremely high local temperatures, pressures, and rapid cooling rates, which collectively enable efficient reduction of copper precursors into nanoscale particles. These conditions cannot be easily achieved through conventional synthetic routes, …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 2, 2026 · pp. 37–43 Read article
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Hybrid Organic–Inorganic Metal Halide Perovskite Solar Cells: A Comprehensive Review of Materials, Device Architectures, Stability, Hysteresis, and Commercialization Challenges
Abstract: Hybrid organic–inorganic metal halide perovskite solar cells (PSCs) have emerged as a major focus of photovoltaic research due to their remarkable increase in power conversion efficiency, reaching 28% within a short period. Perovskite materials exhibit several attractive properties, including long charge-carrier diffusion lengths, tunable band gaps, and excellent light absorption capability. In addition, their low-cost fabrication processes combined with high efficiency make PSCs strong competitors to conventional silicon-based solar cells. …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 12, Issue 2, 2026 · pp. 47–60 Read article
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General and Organic Chemistry Laboratory Experiments for Science , Pre-medical, and Pharmacy studentsChapter IV: Identification and Purification of Organic Compounds
Abstract: In order to identify an organic compound, a chemist needs to apply the suitable technique, depending on the compound state. Accordingly, melting point identification is applied for solids, boiling point for liquids, and sublimation for some compounds which have the tendency to sublime. On the other hand, When an organic compound is isolated from its natural source such as plants, it can be contaminated with some other undesirable compounds, called …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 1, 2026 · pp. 43–59 Read article
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Facile Synthesis and Electrochemical Exploration ofHexagonal Copper Sulfide (CuS) Nanocrystals for Energy Applications
Abstract: Copper sulfide (CuS) is a promising material for a variety of applications, including solar cells, lithium-ion batteries, sensors, and catalysts. In this current study, a facile technique for the synthesis of CuS nanocrystallites at modrate temperature 160°) without the use of any template or additives was reported. The reaction was carried out in a pressure reactor for 24 hours. he crystalline nature of the synthesized CuS nanocrystallites was confirmed using …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 12, Issue 1, 2026 · pp. 1–8 Read article
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Facile Synthesis and Electrochemical Exploration ofHexagonal Copper Sulfide (CuS) Nanocrystals for EnergyApplications
Abstract: Copper sulfide (CuS) is a promising material for a variety of applications, including solar cells, lithium-ion batteries, sensors, and catalysts. In this current study, a facile technique for the synthesis of CuS nanocrystallites at modrate temperature 160°) without the use of any template or additives was reported. The reaction was carried out in a pressure reactor for 24 hours. he crystalline nature of the synthesized CuS nanocrystallites was confirmed using …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 12, Issue 1, 2026 · pp. 1–8 Read article
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Synthesis, Spectral Study, SEM Analysis and Antibacterial Study of New Indole Azo Ligand and Complexes
Abstract: Azo ligands have developed significantly in recent decades due to their fundamental role in the coordination chemistry of transition elements. Their rapid response to coordination bonding in ligand and complex chemistry, particularly with divalent ions, is a key factor. The azo-bridged bond has played a well-established role in the formation of cobalt, nickel, and copper complexes. In this study, we prepared a novel ligand, an indole derivative bonded to an …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 1, 2026 · pp. 1–10 Read article
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Chemical Treatments to Modify the Surface of Agricultural Waste Fibers as a Green Substitute to Cellulosic Fiber Treatment
Abstract: Scientists are searching for natural elements that can decompose naturally and replace synthetic materials that have not been biodegradable for a while. The automotive, space, furniture, construction, medical, and packaging industries are among the many that use synthetic composite materials. This has resulted in growing interest in biodegradable bio composites. In recent years, a variety of stem fibers, including jute, flax, hemp, and kenaf, have been employed to replace the …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 1, 2025 · pp. 35–45 Read article
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An Investigation of Properties Nanoparticles Reinforced Thermoplastic Nanocomposites
Abstract: Nanoparticles and nanocomposites find widespread uses in a variety of fields, such as building materials, architecture, optics, food packaging, optoelectronics, semiconductors, medicine, textiles, cosmetics, and catalysis. Compared to their microparticle cousins, polymeric nanocomposites-a unique family of materials-perform better because they blend organic polymers with inorganic nanoparticles. As a result, they ought to improve the domain of engineering applications. Inorganic nanoparticles can significantly alter the properties of a polymer matrix. Flexible …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 10, Issue 2, 2024 · pp. 54–64 Read article
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Structural, Optical, and Antibacterial Properties of NiCr₂O₄/NiO Nanocomposite Synthesized by a Facile Microplasma Electrochemical Process
Abstract: Nowadays increasing severity of environmental pollution and antibiotic resistance poses significant global challenges, particularly due to the accumulation of organic pollutants from industrialization and the proliferation of antibiotic-resistant bacteria, which jeopardize ecosystems and public health. To address these issues, the development of advanced nanocomposites with photocatalytic and antimicrobial properties is of paramount importance. This article reports the synthesis of NiCr₂O₄/NiO nanocomposite conducted in the current study via atmospheric pressure microplasma …
Published in International Journal of Composite and Constituent Materials · Vol. 10, Issue 2, 2024 · pp. 1–12 Read article
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Investigating the Impact of Silicate Modification on Polypropylene-Layered Silicate Nanocomposite
Abstract: In this research, a co-rotating twin-screw extruder was used to create polypropylene/organo-layered silicate nanocomposites based on organo-muscovite. In the nanocomposite system, compatibilizers such as polypropylene grafted maleic anhydride and potassium succinate modified polypropylene grafted maleic anhydride were employed. The morphological, mechanical, thermal, and rheological characteristics of polypropylene/polypropylene graftedmaleicanhydride/organo-muscovite & polypropylene/potassium succinate modified polypropylene grafted maleic anhydride/organo-muscovite nanocomposites were investigated in relation to the effects of layered silicate modification and compatibilizers. …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 10, Issue 1, 2024 · pp. 47–54 Read article
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THE STUDY AND ANALYSIS OF IGNEOUS ROCKS
Abstract: A solid foundation in the geological sciences necessitates a thorough understanding of igneous petrology. Sedimentary and metamorphic counterparts, as well as intrusive (plutonic) and extrusive (volcanic) igneous rocks, derive from the inherent outcomes of the crystallization, cooling, and solidification of magma originating from the Earth's deepest realms. Bowen's reaction series elucidates the progression of mineral crystallization and cooling, delineating the variety of minerals formed based on the nature of the …
Published in International Journal of Agrochemistry · Vol. 9, Issue 1, 2023 · pp. 17–22 Read article
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Chemical Separations to Transform the Domain
Abstract: The chemical industry includes producers of industrial gases, large-volume commodity chemicals and polymers, chemical products for agricultural and medicinal uses, and performance-targeted chemical and polymer specialties. The industry produces more than 70,000 products, including raw and basic materials, intermediate materials, and finished products. The chemical industry obtains raw materials from the petroleum refining, natural gas, and mining industries, as well as from biological sources. Air emissions included 4.3 million metric …
Published in International Journal of Chemical Separation Technology · Vol. 3, Issue 2, 2017 · pp. 24–29 Read article
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Magneto-electrodeposition of Sn–Ni alloy Coating for Better Corrosion Protection
Abstract: The present paper reports the development of excellent corrosion resistant Sn–Ni alloy coatings from a new pyrophosphate bath by magneto-electrodeposition (MED) approach. First part reports optimization of conditions for deposition of Sn–Ni coatings on mild steel by conventional electrodeposition (ED) method and their characterization. The second part demonstrates how the corrosion resistance of Sn–Ni alloy coatings can be improved drastically by MED method, using same bath. Significant decrease of corrosion …
Published in International Journal of Chemical Engineering and Processing · Vol. 2, Issue 1, 2016 · pp. 29–42 Read article
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Influences of Layered Silicate Modification and Compatibilizers on the Properties of Polypropylene Nanocomposites
Abstract: In this study, polypropylene (PP) organo-layered silicate nanocomposites based on organo-muscovite (OM) were fabricated using co-rotating twin-screw extruder. Polypropylene grafted maleic anhydride (PPMA) and potassium succinate modified polypropylene grafted maleic anhydride (PPKS) were used as a compatibilizer in the nanocomposite system. The influences of layered silicate modification and compatibilizers on the morphological, mechanical, thermal and rheological features of PP/PPMA/OM and PP/PPKS/OM nanocomposites were examined. TEM micrographs were made which showed …
Published in International Journal of Chemical Engineering and Processing · Vol. 7, Issue 1, 2021 · pp. 36–44 Read article
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Synthesis and Characterization of Cadmium exchanged Sodalite
Abstract: Cadmium derivative of chloro sodalite, has been synthesized at low temperature by hydrothermal method. The sodalite is characterized by IR, X-ray powder diffraction and SEM. The Cd derivative was obtained by facile exchange of cadmium for sodium in chloro sodalite using a solution of cadmium nitrate in Teflon autoclaves at 100oC. The IR spectra of parent gallo silicate chloro sodalite and cadmium exchanged chloro sodalites shows three kinds of IR …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 1, 2016 Read article