South African Journal of Chemical Engineering最新文献

{"title":"Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications","authors":"Kazi Suraiya Islam ,&nbsp;Md. Hasnain Mustak ,&nbsp;Md. Khalid Hossain Shishir ,&nbsp;Md. Minnatul Karim ,&nbsp;Gazi Md. Arifuzzaman Khan","doi":"10.1016/j.sajce.2025.02.002","DOIUrl":"10.1016/j.sajce.2025.02.002","url":null,"abstract":"<div><div>In this study, pectin was extracted from unripe banana peel utilizing a straightforward and unique sonochemical method. The extracted pectin was subsequently employed as an efficient ligand in synthesizing zinc oxide nanoparticles (p-ZnO NPs) through a green chemistry approach. The nanoparticles were characterized using X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and UV–visible spectroscopy to evaluate their purity, size, morphology and crystallinity. The UV–vis analysis revealed absorption peak at 338.0 nm with an optical band gap of 3.08 eV, confirming the synthesis of p-ZnO NPs. The XRD analysis confirmed the formation of phase-pure wurtzite structures in the synthesized p-ZnO nanoparticles (NPs), with an average crystallite size of 28.78 nm. The SEM analysis revealed that the p-ZnO NPs exhibited rod-shaped morphology and the characteristic band observed in FTIR spectroscopy at 476 cm⁻¹. A potential mechanism for the formation of the p-ZnO NPs has been proposed. The photocatalytic activity of the p-ZnO NPs was assessed through the degradation of methylene blue (MB) dye under UV light. The maximum degradation efficiency of MB dye reached 78.5 % after 30.0 mins of UV light exposure. Moreover, the p-ZnO NPs exhibited a significant bactericidal effect against drug-resistant gram-positive <em>Staphylococcus aureus</em> but were ineffective against gram-negative <em>Escherichia coli</em>.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 127-140"},"PeriodicalIF":0.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143350976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonic-assisted adsorption of methylene blue using shrimp shells as a low-cost adsorbent: Evaluation on the adsorption isotherm, kinetics, and thermodynamics","authors":"Erni Misran ,&nbsp;Wahyu Pratama ,&nbsp;Kanzi Insan Kasyidi Napitupulu ,&nbsp;Muhammad Dani Supardan ,&nbsp;Dewi Agustina Iryani ,&nbsp;Viqry Pramananda","doi":"10.1016/j.sajce.2025.01.011","DOIUrl":"10.1016/j.sajce.2025.01.011","url":null,"abstract":"<div><div>Methylene blue is a synthetic dye that widely used in various industries. However, its presence in wastewater negatively affects the environment, human health, and aquatic life. Adsorption is recognized as an effective and economical method for removing methylene blue from wastewater. Calcium-based adsorbents such as shrimp shell waste can be used for this purpose. Furthermore, the adsorption process can be intensified using ultrasonic waves. This study aimed to prepare, characterize, and apply shrimp shell-based adsorbents for ultrasonic-assisted methylene blue adsorption. Adsorbents were prepared using three different methods (coded by A1, A2, and A3) to study their effects on the characteristics and performance of methylene blue adsorption. The adsorption process was also performed by varying the solution pH, adsorbent mass, adsorption time, adsorption temperature, and initial methylene blue concentration. The results indicated that the preparation method significantly influenced the characteristics of each adsorbent, as validated by Scanning Electron Microscope-Energy Dispersive X-Ray Spectroscopy, Fourier Transform InfraRed, Particle Size Analyzer, and Surface Area Analyzer. Under optimal conditions, A2 and A3 exhibited the highest methylene blue removal rates, reaching 99.771 % and 99,820 %, respectively. The adsorption isotherm study shows that methylene blue adsorption onto A1 follows the Freundlich model, whereas onto A2 and A3 followed the Langmuir model. The adsorption kinetics study revealed that the experimental data for all three adsorbents conformed well to the Pseudo-Second Order model, with <em>R²</em> values ranging from 0.99998 to 1.0000. Finally, the thermodynamic assessment demonstrated that ultrasonic-assisted MB adsorption with the three adsorbents was spontaneous, with <em>ΔG°</em> values of -1,542, -10,669, and -10,680 kJ/mol, <em>ΔS°</em> values of 62.845, 150.900, and 162.260 kJ/mol.K, and <em>ΔH°</em> values of 17,347, 35,088, and 38,339 kJ/mol for A1, A2, and A3, respectively.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 111-126"},"PeriodicalIF":0.0,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites","authors":"Samor Boonphan ,&nbsp;Suriyong Prachakiew ,&nbsp;Chaiyuth Nontakoat ,&nbsp;Yanee Keereeta ,&nbsp;Chatdanai Boonruang ,&nbsp;Arrak Klinbumrung","doi":"10.1016/j.sajce.2025.01.010","DOIUrl":"10.1016/j.sajce.2025.01.010","url":null,"abstract":"<div><div>This study reports the synthesis and characterization of CeO₂-TiO₂ nanocomposites, focusing on the crystallography and defects in enhancing optical properties. Nanocomposites with varying concentrations of CeO₂ (0–5 mol %) were synthesized using a facile ultrasonic and thermal method. The sample was characterized using several techniques, including XRD, FT-IR, SEM, EDS, UV–Vis spectroscopy, and PL. The crystallite, strain, and dislocation density were estimated based on the XRD analysis. FT-IR spectra refer to CO₂ adsorption in the composites. The Dynamic Light Scattering (DLS) exhibits a smaller diameter with more CeO₂ content. The incorporation of 5 mol % CeO₂ led to a significant reduction in the bandgap from 3.00 eV to 2.24 eV, enabling enhanced absorption in the visible light range. As observed through photoluminescence analysis, F-center defects improved optical density, making the material potential in visible-light-driven photonic technologies. The results suggest that CeO₂-TiO₂ nanocomposites with abundant F-center defects offer novel opportunities in optical devices and coloration improvement.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 68-79"},"PeriodicalIF":0.0,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Depolymerization of rigid polyurethane waste by catalytic glycolysis with diethylene glycol","authors":"Oleksandr S. Ivashchuk ,&nbsp;Wolodymyr Ya. Suprun ,&nbsp;Volodymyr M. Atamanyuk ,&nbsp;Volodymyr S. Kurhanskyi ,&nbsp;Andriy O. Nahurskyi ,&nbsp;Roman A. Chyzhovych","doi":"10.1016/j.sajce.2025.01.009","DOIUrl":"10.1016/j.sajce.2025.01.009","url":null,"abstract":"<div><div>Glycolysis of rigid polyurethane (PU) waste has been investigated to check the possibility of the recycling of polyol from industrial furniture production. The glycolysis reaction was performed at a constant temperature. Diethylene glycol and sodium acetate were used as the solvent and catalyst, respectively. The recovered polyols were characterized by hydroxyl value (HV), dynamic viscosity, and FTIR (Fourier-transform infrared spectroscopy) spectroscopy. The HV of glycolysis products was about 200–800 mg KOH g^-1. The HV depends on the applied DEG:PU mass ratio and on the reaction's time. The glycolysis product containing recovered polyols was directly used without purification for further PU synthesis. The recovered PU materials were investigated using TGA (thermogravimetric analysis) and SEM (scanning electron microscopy) microscopy.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 61-67"},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The solvent effect, preferential solvation of metformin hydrochloride in binary mixed solvents of methanol/ethanol + water mixtures from 278.15 K to 323.15 K","authors":"Adel Noubigh ,&nbsp;Abdalazeem A. Omar ,&nbsp;Manef Abderrabba","doi":"10.1016/j.sajce.2025.01.007","DOIUrl":"10.1016/j.sajce.2025.01.007","url":null,"abstract":"<div><div>This study provides a novel quantitative analysis of metformin hydrochloride (MET-HCl) solvation behavior in binary solvents mixtures of methyl alcohol and water, as well as ethyl alcohol and water, addressing critical gaps in understanding its solubility mechanisms for pharmaceutical formulation. We employed the inverse Kirkwood-Buff integrals (IKBI) method to extract key parameters from the solution thermodynamic properties of MET.HCl, yielding valuable insights into its behavior. The findings reveal that MET.HCl is sensitive to solvation effects, with the values of δ<em>x</em>₁<em>_,</em>_MET-HCl exhibiting a non-linear relationship with the proportion of solvent (1) in the two solvent mixtures. Specifically, in both the methyl alcohol/water and ethyl alcohol/water systems, all alcoholic aqueous mixture compositions exhibit negative δ<em>x</em>₁<em>_,</em>_MET-HCl values. Overall, our results reveal that MET-HCl exhibits preferential solvation by water, with a significantly greater magnitude of preferential solvation observed in ethyl alcohol /water mixtures compared to methyl alcohol /water mixtures. This enhanced solvation by water may be attributed to the disordered structure of the alcohol molecules surrounding the polar regions of MET-HCl. The influence of solvent composition on the molar fraction solubility of MET-HCl was investigated using the Kamlet-Taft linear solvation energy relationship model. The KAT-LSER model revealed that solvent polarity (π*) and ability to accept hydrogen bonds (α) were key factors in MET-HCl dissolution in methyl alcohol and water, as well as ethyl alcohol and water.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 104-110"},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of column adsorption processes by downflow and upflow for removal of cupric (Cu2+) ion solutions using non activated and activated charcoal from rambutan (Nephelium lappaceum L.) stems","authors":"Bode Haryanto,&nbsp;Sofyan Efendi Saragih,&nbsp;Hamidah Harahap,&nbsp;Tubagus Rayyan Fitra Sinuhaji,&nbsp;Vikram Alexander","doi":"10.1016/j.sajce.2025.01.004","DOIUrl":"10.1016/j.sajce.2025.01.004","url":null,"abstract":"<div><div>The escalating environmental threat of heavy metal pollution particularly copper ions emphasizes the importance of wastewater treatment methods. A practical approach is adsorption using plant biomass. This study used column adsorption by comparing the downflow and upflow processes to remove cupric (Cu²⁺) ion from solution by adsorbent from rambutan stems charcoal that not activated and activated using nitric acid. The adsorbent size was 50 mesh, 70 mesh, and 100 mesh, the feed flow rates was 5 mL/min and 10 mL/min, initial concentrations of Cu²⁺ ion was 50 mg/L and 150 mg/L. The Cu²⁺ ion solution was pumped by upflow and downflow after the activated rambutan stem charcoal was inserted into the column. Fourier Transform Infra-Red carried out for analysis the functional group of the adsorbent before and after the activation. Changes in pore structure and chemical composition were verified by Scanning Electron Microscopy-Energy Dispersive X-Ray analysis. The modelling with breakthrough curve and modeling of Bohart-Adam model, Yoon-Nelson model and Thomas model are determined to fit the both column adsorption processes. Based on the results, the highest removal efficiency was 82.71 % obtained at Cu²⁺ ion concentration of 50 mg/L by upflow adsorption at flow rate of 5 mL/min using 100 mesh of activated charcoal of rambutan stem achieved of 2.87 min loading time. The result of this study describe the increase in removal efficiency occurred at lower Cu²⁺ ion concentrations with lower flow rate while using of larger adsorbent size. Longer loading times achieved at the increasing of Cu²⁺ ion concentration, decreasing of flow rate, and increasing of adsorbent size led to. Compared to downflow adsorption, upflow adsorption has a longer loading time. The breakthrough curve has \"S\" shaped profile for both upflow and downflow adsorption. However, the upflow adsorption breakthrough curve is more reliable as well as other modeling fittings showed higher coefficient of determination than the downflow.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 80-96"},"PeriodicalIF":0.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biosynthesis and characterization of ZnO NPs using aqueous extract of Zehneria scabra L. leaf for comparing antibacterial activities and the efficacies of antioxidant activities","authors":"Atnafu Guadie Assefa ,&nbsp;Tebekew Demeke ,&nbsp;Molla Tefera ,&nbsp;Mengistu Mulu ,&nbsp;Samuel Tesfaye","doi":"10.1016/j.sajce.2025.01.008","DOIUrl":"10.1016/j.sajce.2025.01.008","url":null,"abstract":"<div><div>An aqueous leaf extract of <em>Zehneria scabra</em> L. assisted zinc oxide nanoparticles (ZnO NPs) were bio-synthesized from zinc acetate (ZnAc) using eco-friendly and cost-effective synthesis method. The synthesis of ZnO NPs was affirmed by the spectroscopic (Uv-Vis and FT-IR) and microscopic (XRD) techniques. The surface Plasmon resonance of ZnO NPs characterized by Uv-Vis DRS at 380 nm, showing 3.20 eV band gap, FT-IR indicates the effective chelating ability of the plant extract for the synthesizing ZnO NPs, and X-ray diffraction (XRD) showed hexagonal wurtzite characteristic structure corresponding to (100), (002), (101), (102), (110), (103), (200), (112), and (201) planes with strong preferential orientation of wurtzite structure of ZnO NPs along (101) plane. The effects of amount of zinc acetate (ZnAc) (0.5, 1, 1.5, 2.0 and 2.5 mM), adjusted pHs (3, 6, 8, 9, and 12), reaction time (30, 50, 70, 90 and 120 min), and temperature (25 °C -110 °C) on the size of ZnO NPs were studied. The ZnO NPs revealed higher antibacterial activity against gram-positive <em>S. aureus</em> (13 ± 2.0 mm), than gram-negative <em>E. coli</em> (10.33 ± 1.53 mm). The antioxidant activities of ZnO NPs against 1, 1-diphenyl-2-picrylhydrazyl (DPPH) were presented with promising radical scavenging ability at an IC50 of 104 µg/mL. This study further paves the way for the possible preparation of other metal oxide NPs with promising targeted drug delivery potential for biomedical and environmental applications.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 40-47"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Competence of corncob (Zea mays L.) powder with HCl activation as adsorbent to purify waste cooking oil: Reference in the batch adsorption process","authors":"Bode Haryanto,&nbsp;Rondang Tambun,&nbsp;Oktavia Merta Sitohang,&nbsp;Stephanie Yosepha Sidauruk,&nbsp;Gabriela Emma Naomi,&nbsp;Vikram Alexander","doi":"10.1016/j.sajce.2025.01.006","DOIUrl":"10.1016/j.sajce.2025.01.006","url":null,"abstract":"<div><div>The quality of cooking oil needs to be maintained. To purify used cooking oil, an adsorption process involving adsorbents is required. In this study, a 100 mL sample of used cooking oil was taken. The oil was then left to settle for 20 min before measuring the initial turbidity level with a turbidimeter. In manufacturing adsorbents from corncob powder with sizes 50 mesh, 70 mesh, and 100 mesh, each weighed as much as 25 g, mixed with 150 ml of 0.1 M hydrochloric acid for 3 h, and dried in the oven. Each size of adsorbent was weighed as much as 2 g, 3 g, and 4 g. The adsorption process was done by mixing oil with corncob adsorbent in a beaker glass. Every 20 min, turbidity was measured using a turbidimeter for 5 h. Based on the turbidimeter results, an adsorbent size of 100 mesh with a mass of 4 g has an adsorption capacity of 12,728 mg/g with percentage reduction of turbidity of 94.5%. Based on the Scanning Electron Microscope-Energy Dispersive X-ray results, the surface of the HCl-activated adsorbent has pores with a distance of 10 µm, and the adsorbent contains carbon, oxygen, silica, and copper compounds. According to the Fourier Transform Infrared results, there is a change in functional groups, Brunauer-Emmett-Teller results show a change in surface area, and Gas Chromatography-Mass Spectrophotometry results show a decrease in free fatty acids in used cooking oil after purification.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 48-60"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacious removal of mercury metal in food industry sewerage utilizing reduced graphene oxide adsorbent composited with magnetic nanoparticles","authors":"Adel Beig Babaei ,&nbsp;Arash Dara ,&nbsp;Hanieh Sadat Taheri","doi":"10.1016/j.sajce.2025.01.002","DOIUrl":"10.1016/j.sajce.2025.01.002","url":null,"abstract":"<div><div>This study examines the effectiveness of a composite material made from reduced graphene oxide (rGO) and magnetic nanoparticles for the adsorption of heavy metals from wastewater, addressing a critical environmental issue as heavy metal pollution poses significant risks to human health. Traditional water treatment methods often fail to adequately remove these persistent contaminants. The composite takes advantage of graphene's high surface area and adsorption capacity, while the magnetic nanoparticles facilitate easy separation and reusability of the adsorbent. Characterization techniques such as X-ray diffraction (XRD) and Raman spectroscopy were employed to confirm the composite's structural integrity and the presence of rGO, highlighting its functional properties. The study's focus lay on investigating mercury removal efficiency across varying pH levels (1–6), temperatures (25 °C), mercury concentrations (10 g/L), adsorbent amounts (0.01–0.05 g/L), and contact times (120–360 s). The findings indicated that optimal mercury adsorption occurred at pH 6, with a 100 s contact time, 25 °C, and 0.05 g of adsorbent. The maximum mercury removal achieved was quantified at 9.15 µg/L, demonstrating the potential of iron nanoparticle-magnetized nano graphene oxide as an efficient and sustainable solution for heavy metal remediation in wastewater treatment applications. The results obtained showed that graphene oxide magnetized with iron nanoparticles can be effectively used to remove mercury from water and wastewater samples.Overall, this research highlights a promising pathway towards addressing the pressing challenge of water pollution with heavy metals.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 97-103"},"PeriodicalIF":0.0,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving of fuel quality and environment using new synthetic (Mn3O4/AC-nano-particles) for oxidative desulfurization using digital baffle batch reactor","authors":"Amer T. Nawaf ,&nbsp;Jasim I. Humadi ,&nbsp;Ali A. Hassan ,&nbsp;Mohamed A. Habila ,&nbsp;Rajesh Haldhar","doi":"10.1016/j.sajce.2025.01.003","DOIUrl":"10.1016/j.sajce.2025.01.003","url":null,"abstract":"<div><div>This experimental study uses a modified homemade novel nano-catalyst (8 %Mn₃O₄/AC-nanoparticles) to explore the oxidative desulfurization (ODS) process in a digital baffle batch reactor (DBBR) to remove sulfur compounds from light gas oil. With its efficient impregnation, high activity, excellent distribution of pore sizes, and increased surface area, the manganese oxide nano-catalyst design supported on activated nanoparticles exhibits exceptional catalytic performance. To gain a greater understanding of the ODS process, moderate operating conditions are used at various reaction temperatures, reaction times, and oxidant amounts. Results of the experiment indicate that increasing the temperature, batch reaction, and oxidant quantity increases the conversion of sulfur compounds. It has been determined that the novel nano-catalysts are 93.33 % effective at removing sulfur at a reaction temperature of 90 °C, a batch time of 45 min, and an oxidant agent amount of 5 ml from H₂O₂.</div></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"52 ","pages":"Pages 8-19"},"PeriodicalIF":0.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}