Reaction Kinetics, Mechanisms and Catalysis最新文献_第9页

Synthesis of silver phosphate-coated MIL-88A composites with diverse morphologies to enhanced Fenton-like performance for phenol removal 合成不同形貌的磷酸银包覆MIL-88A复合材料以增强类芬顿脱酚性能

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-18 DOI: 10.1007/s11144-026-03115-y

Wenxiu Huang, Nannan Zhao, Wenhui Wang

{"title":"Synthesis of silver phosphate-coated MIL-88A composites with diverse morphologies to enhanced Fenton-like performance for phenol removal","authors":"Wenxiu Huang, Nannan Zhao, Wenhui Wang","doi":"10.1007/s11144-026-03115-y","DOIUrl":"10.1007/s11144-026-03115-y","url":null,"abstract":"<div>Silver phosphate (Ag3PO4) is a promising visible-light photocatalyst but suffers from fast charge recombination and serious photocorrosion, while MIL-88A(Fe) faces stability issues and Fe3+ leaching. In this work, a series of MIL-88A@Ag3PO4 composites with rod-like (r-MIL-88A), spindle-like (s-MIL-88A), and diamond-like (d-MIL-88A) morphologies were prepared via an in situ growth method. The rod-like r-MIL-88A@6%Ag3PO4 showed the optimal performance, with an initial concentration of phenol of 100 ppm, degradation efficiency of 99.7% under visible light with H2O2 concentration 100 ppm. Fe3+ leaching remained below 0.08 mg/L, phenol removal efficiency from 99.7% to around 83%, while demonstrating remarkable reusability of the composite even after five consecutive cycles. Comprehensive characterization techniques, including X-ray diffraction(XRD), Scanning Electron Microscope(SEM), X-ray Photoelectron Spectroscopy(XPS), Brunauer–Emmett–Teller(BET), Ultraviolet–Visible spectroscopy(UV–VIS), Photoluminescence (PL), Electrochemical Impedance Spectroscopy(EIS), transient photocurrent and photoelectrochemical analysis confirmed the the successful coupling of MIL-88A and Ag3PO4 alongwith efficient photogenerated charge separation and transfer efficiency. Radical scavenging experiments and electron spin resonance (ESR) confirmed that the main active species were photogenerated holes(h⁺), superoxide radicals(·O2⁻), and hydroxyl radicals (·OH), and in situ formed Ag⁰ served as an electron transfer bridge. This study provides a facile and simple strategy for developing highly active and stable metal–organic frameworks (MOF)-based composites for the purpose of remediating organic wastewater.</div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"3025 - 3038"},"PeriodicalIF":2.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical study of dissociative adsorption of CH4 fragments on Ru–Cu(100) and Ni–Cu(100) surfaces CH4碎片在Ru-Cu（100）和Ni-Cu（100）表面解离吸附的理论研究

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-18 DOI: 10.1007/s11144-026-03093-1

Somia Benchikh, Habib Khettal, Mohamed Fahim Haroun, Hiba Khatir, Kamel Kassali, Mebarek Boukelkoul

{"title":"Theoretical study of dissociative adsorption of CH4 fragments on Ru–Cu(100) and Ni–Cu(100) surfaces","authors":"Somia Benchikh, Habib Khettal, Mohamed Fahim Haroun, Hiba Khatir, Kamel Kassali, Mebarek Boukelkoul","doi":"10.1007/s11144-026-03093-1","DOIUrl":"10.1007/s11144-026-03093-1","url":null,"abstract":"<div>Theoretical DTF calculations are performed to evaluate the reactivity of Ni–Cu(100) and Ru–Cu(100) bimetallic surfaces towards methane and its fragments adsorption and activation. Possible and preferred adsorption sites for CH4, CH3, CH2, CH, C and H species at 0.25 coverage are presented in this work. Corresponding adsorption energies for all the available surface sites for each species have been determined. Structural parameters for all adsorbed species are also given. From this work, therefore, it can be said that the interaction strengths between methane as well as its fragments and the Ru–Cu(100) surface are the strongest. Compared to Ni–Cu(100), the ruthenium-copper based catalyst stabilizes the methane and its fragments more effectively. In this process, ruthenium’s 4d band center is located at higher energy and the density of states near Fermi level is higher compared to the Ni 3d band. Bimetallic Ru–Cu(100) surface is more active and therefore present a good catalyst for methane and its fragments activations. In addition, the activation energies for CH4 complete dehydrogenation on Ru–Cu(100) are reproduced. The calculations reveal that the activation of CH2 into CH and H is kinetically slow, indicating that methylene dissociation is a rate-limiting step. The results suggest that Ru alloying improves the Cu(100) catalytic proprieties for methane decomposition by helping to reduce the coking and promoting the hydrogen production.</div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"3145 - 3165"},"PeriodicalIF":2.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Photocatalytic degradation of diclofenac sodium, paracetamol and tetracycline using nano TiO2/ZnO loaded on starch copper complex 淀粉铜配合物负载纳米TiO2/ZnO光催化降解双氯芬酸钠、扑热息痛和四环素

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-17 DOI: 10.1007/s11144-026-03113-0

Sasireka Ramanathan, Anbuchezhiyan Maruthamuthu, Rajendran Sribalan

{"title":"Photocatalytic degradation of diclofenac sodium, paracetamol and tetracycline using nano TiO2/ZnO loaded on starch copper complex","authors":"Sasireka Ramanathan, Anbuchezhiyan Maruthamuthu, Rajendran Sribalan","doi":"10.1007/s11144-026-03113-0","DOIUrl":"10.1007/s11144-026-03113-0","url":null,"abstract":"<div>The photocatalytic degradation of pharmaceutical pollutants such as diclofenac sodium, paracetamol, and tetracycline was studied by integrating TiO2/ZnO nanoparticles into a biodegradable starch copper complex. Structural, optical and surface investigations were conducted using XRD, XPS, FT-IR, FE-SEM, UV–visible spectroscopy and BET analysis. X-ray diffraction confirms the tetragonal anatase structure of TiO2 and hexagonal wurtzite phase of ZnO. The synthesized TiO₂ nanoparticles exhibited a band gap of 2.36 eV, which is lower than that of ZnO nanoparticles (3.63 eV). Upon complexation with starch, a notable reduction in the band gap was observed, with the starch–metal complex showing a value of 3.17 eV. The photocatalytic degradation using a TiO₂/ZnO/starch copper complex with Fenton’s reagent was studied under UV light (Wavelengths of 254 and 365 nm), visible light, and sunlight at different pH levels (3, 7, and 10). The material displayed complete degradation of all three pollutants within 30 min under acidic conditions. The catalyst–Fenton system functions effectively without a dedicated reactor and can be activated solely by sunlight, suggesting a promising strategy for designing advanced photocatalysts with broad environmental remediation applications.</div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"3127 - 3143"},"PeriodicalIF":2.1,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Methanation of CO2 using Mg-modified Fe catalysts 镁改性铁催化剂催化CO2甲烷化

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-16 DOI: 10.1007/s11144-026-03116-x

Zeynep Senftleben, Marcel Mehne, Sven Kureti

{"title":"Methanation of CO2 using Mg-modified Fe catalysts","authors":"Zeynep Senftleben, Marcel Mehne, Sven Kureti","doi":"10.1007/s11144-026-03116-x","DOIUrl":"10.1007/s11144-026-03116-x","url":null,"abstract":"<div>The hydrogenation of CO2 to CH4 was studied over a series of Mg-promoted Fe catalysts containing 2 wt% Mg. The catalysts were synthesized using different preparation methods and Mg precursors to systematically assess the impact of bulk and surface properties on catalytic behavior. Comprehensive characterization was performed using X-ray diffraction, N2 physisorption, 57Fe Moessbauer spectroscopy, X-ray photoelectron spectroscopy, temperature-programmed reduction by H2, temperature-programmed desorption of NH3 and temperature-programmed hydrogenation. Structure–activity relations indicate that a homogeneous Mg distribution in the bulk enhances the formation of surface defects and amorphous phases, while improving the reducibility of the fresh catalysts. These characteristics promote the formation of iron carbide and carbonaceous surface species, which are identified as the active phases responsible for CH4 formation during CO2 hydrogenation. The reverse water–gas shift reaction was found to be a key step driving CO2 activation. The catalyst prepared by flame spray pyrolysis using magnesium acetate as precursor exhibited the highest performance. Under industrially relevant conditions (400 °C, 14 bar, 8500 h⁻1), a CO2 conversion of 68% and a CH4 selectivity of 78% were achieved, representing the highest efficiency reported to date for Fe-based catalysts.</div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2665 - 2682"},"PeriodicalIF":2.1,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11144-026-03116-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biomimetic catalytic degradation of fluoroquinolone antibiotics by water-soluble metalloporphyrins 水溶性金属卟啉仿生催化降解氟喹诺酮类抗生素

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-16 DOI: 10.1007/s11144-026-03118-9

Denan Li, Wataru Ueda, Qianqian Zhu, Yanshuo Li, Zhenxin Zhang

{"title":"Biomimetic catalytic degradation of fluoroquinolone antibiotics by water-soluble metalloporphyrins","authors":"Denan Li, Wataru Ueda, Qianqian Zhu, Yanshuo Li, Zhenxin Zhang","doi":"10.1007/s11144-026-03118-9","DOIUrl":"10.1007/s11144-026-03118-9","url":null,"abstract":"<div>Water soluble metal-tetrakis (p-sulfonatephenyl) porphyrin were studied for catalytic degradation of ciprofloxacin using H2O2, K2S2O8, and KHSO5 as oxidant in aqueous medium. Cobalt (III)-tetrakis (p-sulfonatephenyl) porphyrin (CoTPPS), manganese (III) –tetrakis (p-sulfonatephenyl)porphyrin (MnTPPS), and iron(III)-tetrakis (p-sulfonatephenyl)porphyrin were evaluated (FeTPPS). CoTPPS showed the highest catalytic activity for catalytic degradation of fluoroquinolones and sulfamethoxazole. The degradation efficiency of ciprofloxacin reached 95% within 20 min at room temperature. The obtained products were characterized using mass spectrometry, leading to the proposal of a catalytic degradation pathway for ciprofloxacin mediated by CoTPPS. Additionally, a reaction mechanism for the system was postulated and subsequently corroborated through density functional theory (DFT) calculation. The higher stability and the formation of [(Porp) CoⅣ = O]+• played the key roles for the higher catalytic activity of CoTPPS. Co porphyrin-catalyzed ciprofloxacin degradation is a promising strategy to degrade fluoroquinolones.</div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"3111 - 3125"},"PeriodicalIF":2.1,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal degradation behavior and reaction kinetics of elm branches based on thermogravimetric-Fourier transform infrared spectroscopy analysis and shuffled complex evolution optimization method 基于热重-傅里叶变换红外光谱分析和混沌复进化优化方法的榆树枝热降解行为和反应动力学

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-15 DOI: 10.1007/s11144-026-03117-w

Xuyang Miao, Tao Sun, Siwei Wei, Jiaqing Zhang, Yushun Liu, Yanming Ding

引用次数: 0

Activated carbon derived from Cupressus sempervirens cones for hexavalent chromium removal from aqueous solutions 从柏树球果中提取的活性炭去除水溶液中的六价铬

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-15 DOI: 10.1007/s11144-026-03111-2

Loubna Sadaoui, Sihem Djebabra, Fedia Bekiri, Hanane Rehali, Ines Hamdi, Majda Charif, Djihad Telhas

{"title":"Activated carbon derived from Cupressus sempervirens cones for hexavalent chromium removal from aqueous solutions","authors":"Loubna Sadaoui, Sihem Djebabra, Fedia Bekiri, Hanane Rehali, Ines Hamdi, Majda Charif, Djihad Telhas","doi":"10.1007/s11144-026-03111-2","DOIUrl":"10.1007/s11144-026-03111-2","url":null,"abstract":"<div>The increasing presence of toxic heavy metals, particularly hexavalent chromium (Cr(VI)), in water sources is a serious environmental concern with implications for human health. This study developed activated carbon (AC) derived from Cupressus sempervirens cones (CAC) as an eco-friendly, low-cost adsorbent for effectively removing Cr(VI) from aqueous solutions. The CAC was prepared via pyrolysis at 500 °C, followed by NaCl activation. Its properties were characterized using BET, SEM, FTIR, XRD, TGA, and pHpzc analyses. The material exhibited a specific surface area of 45.96 m2/g and a mesoporous structure with an average pore diameter of 23.59 nm. Batch adsorption experiments revealed that removal efficiency depended heavily on operational parameters, particularly pH. The maximum removal efficiency of 89.78% was achieved at pH 2 with an initial Cr(VI) concentration of 80 mg/L. Isotherm analysis revealed that the adsorption process adhered to the Langmuir model (R2 = 0.996), suggesting monolayer adsorption with a maximum capacity of 75.89 mg/g. Pseudo-first order models provided the most accurate description of the adsorption behavior (R2 = 0.998). Thermodynamic parameters confirmed spontaneous (ΔG < 0) and exothermic (ΔH = − 11.83 kJ/mol) adsorption. Furthermore, CAC demonstrated acceptable reusability, maintaining 47% of its initial removal efficiency after four adsorptions–desorption cycles. These results suggest that CAC has high adsorption capacity, favorable kinetics, and reasonable stability, making it a promising, low-cost, sustainable adsorbent for effectively removing Cr(VI) from contaminated water.</div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"3039 - 3065"},"PeriodicalIF":2.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adsorption performance, adsorber design, and pyrolysis kinetics for methylene blue removal using surface-modified biochar 表面改性生物炭去除亚甲基蓝的吸附性能、吸附器设计和热解动力学

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-10 DOI: 10.1007/s11144-026-03077-1

Pamela Nxala, Pareshkumar G. Moradeeya, Geoffrey S. Simate

{"title":"Adsorption performance, adsorber design, and pyrolysis kinetics for methylene blue removal using surface-modified biochar","authors":"Pamela Nxala, Pareshkumar G. Moradeeya, Geoffrey S. Simate","doi":"10.1007/s11144-026-03077-1","DOIUrl":"10.1007/s11144-026-03077-1","url":null,"abstract":"<div>Surface-modified biochar was synthesized from eucalyptus hardwood waste via salt-assisted pyrolysis followed by amino-silane grafting to enhance surface functionality. Structural characterization confirmed predominantly amorphous carbon with mesoporous structure and heterogeneous surface chemistry. Methylene blue (MB) adsorption was evaluated under batch conditions at natural pH. Equilibrium data were best described by the Sips isotherm, yielding a maximum adsorption capacity of 4.525 mg g⁻1, while kinetic behavior followed the Elovich model, indicating heterogeneous surface-controlled adsorption. Fitted Sips parameters were subsequently applied to single- and two-stage batch adsorber design. For a 50 L treatment volume, the optimized two-stage configuration reduced total adsorbent demand by approximately 50% compared with single-stage operation, demonstrating that process-level optimization can partially offset moderate adsorption capacity. Thermogravimetric analysis (TGA) combined with model-free iso-conversional methods revealed conversion-dependent activation energies with a mean value of approximately 171 kJ mol⁻1 over α = 0.20–0.60, confirming multi-step degradation behavior and structural stability. These findings emphasize the importance of integrating surface modification, adsorption modeling, and adsorber design to evaluate forestry-derived biochars beyond conventional capacity reporting.</div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2683 - 2705"},"PeriodicalIF":2.1,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11144-026-03077-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrogenation of dimethyl 1,4-cyclohexanedicarboxylate to 1,4-cyclohexanedimethanol: a kinetic study over a CuFe5 catalyst 1,4-环己二羧酸二甲基加氢制1,4-环己二甲醇：CuFe5催化剂上的动力学研究

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-10 DOI: 10.1007/s11144-026-03099-9

Kun Jiang, Qian Zhang, Yuanbo Zheng, Kai Wu, Weiqiang Wang, Qinwei Yu, Jianming Yang

{"title":"Hydrogenation of dimethyl 1,4-cyclohexanedicarboxylate to 1,4-cyclohexanedimethanol: a kinetic study over a CuFe5 catalyst","authors":"Kun Jiang, Qian Zhang, Yuanbo Zheng, Kai Wu, Weiqiang Wang, Qinwei Yu, Jianming Yang","doi":"10.1007/s11144-026-03099-9","DOIUrl":"10.1007/s11144-026-03099-9","url":null,"abstract":"<div>This study systematically investigates the intrinsic kinetics of the liquid-phase hydrogenation of dimethyl 1,4-cyclohexanedicarboxylate (DMCD) over a Cr-free CuFe5 catalyst in a fixed-bed reactor. The complex reaction network involves the sequential hydrogenation of the two ester groups in DMCD, proceeding via the intermediate methyl 4-(hydroxymethyl)cyclohexane-1-carboxylate (MHMCC) to yield the target diol, 1,4-cyclohexanedimethanol (CHDM). This main pathway is accompanied by a parallel side reaction that generates 1-((4-(hydroxymethyl)cyclohexyl)methyl) 4-methyl cyclohexane-1,4-dicarboxylate (HCMMCD). Four dissociative adsorption kinetic models based on the dual-site Langmuir–Hinshelwood-Hougen-Watson (LHHW) mechanism were developed. Kinetic parameters for each model were estimated via the nonlinear least-squares method using the Levenberg–Marquardt algorithm in MATLAB. Model discrimination identified the mechanism with the surface reaction as the rate-determining step as optimal, showing excellent agreement with experimental data (correlation coefficient R2 = 0.943) and satisfying statistical validation criteria. The optimized model indicates that DMCD undergoes dissociative adsorption on the catalyst surface, with stepwise hydrogenation of acyl species constituting the rate-limiting step. Activation energies for the key surface reactions were determined to be 133.66 kJ/mol (DMCD → MHMCC) and 189.62 kJ/mol (MHMCC → CHDM). These findings establish a fundamental kinetic basis for scaling up the liquid-phase hydrogenation process employing the environmentally benign CuFe5 catalyst.</div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"3001 - 3024"},"PeriodicalIF":2.1,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Propylparaben removal using Fe-MgO/SBA-15 photocatalyst Fe-MgO/SBA-15光催化剂去除对羟基苯甲酸丙酯

IF 2.1 4区化学

Reaction Kinetics, Mechanisms and Catalysis Pub Date : 2026-04-09 DOI: 10.1007/s11144-026-03108-x

Souad Nachet, Djalila Guettaia, Chahrazed Daoudi, Amel Boudjemaa, Karima Saidi-Bendahou, Belkacem Benguella, Khaldoun Bachari, Chewki Ziani Cherif

{"title":"Propylparaben removal using Fe-MgO/SBA-15 photocatalyst","authors":"Souad Nachet, Djalila Guettaia, Chahrazed Daoudi, Amel Boudjemaa, Karima Saidi-Bendahou, Belkacem Benguella, Khaldoun Bachari, Chewki Ziani Cherif","doi":"10.1007/s11144-026-03108-x","DOIUrl":"10.1007/s11144-026-03108-x","url":null,"abstract":"<div>The present study investigates the photocatalytic degradation of propyl paraben (propyl para-hydroxybenzoate, PrP) using Fe–MgO/SBA-15 photocatalyst. The catalyst was successfully synthesized via ultrasonic-assisted sol–gel method and characterized using X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) analysis, fourier transform infrared spectroscopy (FTIR), and UV–Vis diffuse reflectance spectroscopy prior to its application. Its photocatalytic performance was evaluated for the removal of PrP under UV-light irradiation. The influence of key operational parameters, including pH, catalyst dosage, and initial pollutant concentration, was systematically examined. The results demonstrated that the Fe–MgO/SBA-15 heterojunction achieved (100%) degradation of PrP within 30 min of irradiation at pH 3. Additionally, 70% of chemical oxygen demand (COD) and 67.5% of total organic carbon (TOC) were removed, indicating significant mineralization of the pollutant.<h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2897 - 2914"},"PeriodicalIF":2.1,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0