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Jun 30, 2026Open Access
Achieving an appropriate balance between acid-base properties and dehydrogenation ability is essential for improving catalytic performance in the side-chain alkylation of toluene with methanol (SATM). In this work, a series of transition metal-modified NaX catalysts containing Cu, Ni, Co, Ag, and Ce were synthesized through an in- situ hydrothermal method using two different preparation strategies, denoted as M1 and M2. Subsequently, 17 wt% NaOH was introduced to regulate the surfac...
Apr 17, 2026Open Access
Methylmercury (MeHg) is an extremely dangerous and toxic organometallic compound that has been found to be persistent and recurrent in various compositions of the environment and is highly suspected to cause dangerous problems in ecosystems and public health owing to the accumulative and magnifying effects that it may cause in the food chain. Soil, one of the essential components for both the storage and partial release of MeHg, is a critical medium through which this compound moves within the e...
Feb 06, 2026Open Access
Norfloxacin (NOR), a broad-spectrum fluoroquinolone antibiotic, is widely used to treat bacterial infections. However, its clinical application is hindered by poor aqueous solubility and low oral bioavailability. To address these limitations, this study developed two novel pharmaceutical salts of NOR using 4-fluorobenzoic acid (4-FA) and 2-fluorobenzoic acid (2-FA) as counterions. The salts were synthesized via slow evaporation crystallization, and their structures were characterized by single-c...
May 29, 2025Open Access
An architectural tour of our rural areas around the world showcases unique expressions of cultural identity through our buildings, spatial layouts, and decorations, often overshadowed in urban environments; Chad is no exception. Authors present their strategies for promoting local identities. In Chad, the architect-urban planner Senoussi Ahmat Senoussi oversees the women of Gaoui as they enhance their techniques in earthen decoration. Also, the architect ROGER Boriata studied the variation of tr...
Apr 10, 2025Open Access
Molecular salts, specifically 1-phenylethan-1-aminium 4-hydroxy-3-methoxybenzoate (1), 1-phenylethan-1-aminium 4-hydroxy-3,5-dimethoxybenzoate (2), and 1-phenylethan-1-aminium 3-(4-hydroxy-3-methoxyphenyl)prop-2-enoate (3), were successfully synthesized. The structures of [C 8NH 12] [C 8H 7O 4] ？(1), [C 8NH 12] [C 9H 9O 5] ？(2), and [C 8NH 12...
Feb 05, 2025Open Access
Atorvastatin calcium (ATC) is a widely prescribed synthetic cholesterol-lowering agent classified as BCS class II. This study aimed to investigate the solubility of ATC in a methanol-water mixture, which was illustrated through a ternary phase diagram. Additionally, the influence of varying concentrations of Tween 20 on the solubility of ATC in this aqueous methanol mixture was examined. ATC exhibits maximum solubility in pure methanol, and the incorporation of surf...
Dec 12, 2024Open Access
A realistic model of reservoir fluid samples is essential before conducting reservoir simulations, especially for gas condensate reservoirs. Errors in PVT modeling typically stem from three main sources: fluid sampling, fluid property measurement, and fluid model construction. This work presents a rapid method for constructing a more realistic PVT fluid model before tuning. Three fluid samples from different Iranian gas condensate reservoirs were selected to achieve this. A suitable equation of ...
Dec 11, 2024Open Access
The demand for wood products contributes greatly to deforestation, resulting in severe environmental effects. Each year, almost 18 million acres of forest are destroyed, which is equivalent to 27 soccer fields vanishing every minute. This rapid deforestation exacerbates climate change, habitat loss, and natural resource depletion. As a result, finding alternatives to traditional wood for building applications such as doors, windows, roofing, beams, furniture, and packaging is essential. This stu...
Oct 29, 2024Open Access
In this report, a simple method was employed to synthesize Fe/ZSM-5 for propane (C 3H 8) dehydrogenation. Fe of varying loading 1.5 - 3 wt% was with ZSM-5. Catalyst physicochemical properties were analyzed using XRD and FTIR. The XRD and FTIR characterization showed that the modified catalysts retained their crystallinity after metal impregnation. The performance tests for propane dehydrogenation to produce olefins over synthesized catalysts were carried out in a fixed-bed re...
Aug 26, 2024Open Access
This article reports the oxidation of acetone by H 2O 2 in the presence of CO 2. It describes the role played by carbon dioxide on the course of the reaction. The reaction was catalyzed by (MgO/γ-Al 2O 3). The prepared materials were characterized by XRD, FTIR, TGA, TEM, and SEM. Analysis of the reaction products by gas chromatography coupled with mass spectrometry and gas chromatography showed that acetic acid was the main product of the reactio...
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