( Vol 30 , Issue 04 )
08 Apr 2026
( Vol 30 , Issue 04 )
30 Apr 2026
Research Journal of Chemistry and Environment (ISSN:0972-0626) is a monthly peer-reviewed scopus-indexed journal from 2007 to Present. The publisher of this journal is the Journal of International Congress of Chemistry and Environment. RJCE is committed to gathering and disseminating excellent research achievements. The journal welcomes all kind of research/review/abstract papers regarding Engineering subjects including Earth and Planetary Sciences, Environmental Science, Chemical Engineering, Agricultural and Biological Sciences, Renewable Energy, Biochemistry.
Various commercial thermoplastic polymers, including styrene-butadiene rubber (SBR), polyacrylonitrile (K), polystyrene (PS), polypropylene (PP), and polychloroprene (PC), are employed to modify two types of asphalt: asphalt 60/70 Suez (L) and asphalt 80/100 Alex (H). The optimal ratio of polymer additives, introduced using a hot mixing process at temperatures between 150°C and 170°C, was determined based on the measurements of penetration, softening point, penetration temperature susceptibility (PTS), and penetration index (PI) for the cooled blended formulations. For asphalt L, the ideal p
Read MoreFour distinct bisphenols and their corresponding low molecular weight epoxy resins (1, 2, 3, and 4) were synthesized and thoroughly and thoroughly propertiezed. Every resin was utilized as an additive, combined with a high-temperature hardener, to modify two types of locally available asphalt (designated M and N types) with varied constituents. The study assessed the performance of these epoxy resin-asphalt mixtures in enhancing critical properties such as penetration, softening point, penetration temperature susceptibility (PTT), and penetration index (PI). These improvements were analyzed ba
Read MoreSulfadiazine (SDZ) is a pharmaceutical pollutant frequently detected in water, posing significant health and environmental risks. To address this issue, the current research explore the use of a novel adsorbent, date seed-based activated carbon (DSAC), for the effective removal of SDZ. DSAC was optimized using response surface methodology (RSM) under preparation conditions of 2.30 minutes activation time, 490 W radiation power, and an impregnation ratio (IR) of 1.60 g/g, achieving a estimated SDZ removal of 94.30% (experimental: 90.70%; error: 3.90%) with a DSAC yield of 26.22% (experimental:
Read MoreBoth lead (Pb²⁺) and hexavalent chromium (Cr(VI)) are highly toxic pollutants which need to have strategies for their removal. In this work, graphene oxide (GO) and thiourea-functionalized graphene oxide (TU-GO) were prepared and characterized by means of scanning electron microscopy (SEM), FTIR, Raman, UV-Vis, and BET analyses. Compared to GO, TU-GO showed higher surface area and enriched N/S functional groups. For adsorption experiments, an equilibrium was rapidly reached for Pb²⁺ and was slower for Cr(VI) uptake. Isotherm analysis revealed Pb²⁺ adsorption was Langmuir type monolaye
Read MoreThis study aimed to optimize the extraction of total polyphenols and antioxidant compounds from the bark of Ficus thonningii, a medicinal tree widely used in West African ethnopharmacology. Two extraction methods—maceration (MAC) and ultrasound-assisted extraction (UAE)—were compared at three solid-to-liquid ratios (S/L: 1/120, 1/80, and 1/60 g/mL) using an acetone/water solvent system (60:40, v/v). Both processes were carried out at 40 °C for 35 minutes, with kinetic sampling every 5 minutes. Total phenolic content was determined using the Folin–Ciocalteu method, while antioxidant acti
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