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Remediation of lead-contaminated soil by Fe-Mn-Ni layered double hydroxide composite biochar 铁锰镍层状双氢氧化物复合生物炭修复铅污染土壤的研究
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100785
Hongguang Zhou , Yunke Kuang , Yanping Gan , Peng Jiang , Yuying Pu , Yanmei Yang
{"title":"Remediation of lead-contaminated soil by Fe-Mn-Ni layered double hydroxide composite biochar","authors":"Hongguang Zhou ,&nbsp;Yunke Kuang ,&nbsp;Yanping Gan ,&nbsp;Peng Jiang ,&nbsp;Yuying Pu ,&nbsp;Yanmei Yang","doi":"10.1016/j.ceja.2025.100785","DOIUrl":"10.1016/j.ceja.2025.100785","url":null,"abstract":"<div><div>This study investigated the remediation of lead (Pb)-contaminated soil using Fe-Mn-Ni layered double hydroxide composite biochar (LDH/CSB). The results demonstrated that LDH/CSB application significantly increased soil pH, electrical conductivity (EC), and total organic carbon (TOC) content. The elevation of soil pH enhanced Pb precipitation as insoluble hydroxides (e.g., Pb(OH)<sub>2</sub>), while increased TOC provided abundant oxygen-containing functional groups (e.g., carboxyl and hydroxyl groups) to immobilize Pb through complexation and surface adsorption. The high specific surface area (up to 78.70 m²/g) and layered structure of LDH/CSB further facilitated Pb binding, transforming mobile fractions (acid-soluble and reducible Pb) into stable forms (oxidizable and residual Pb). Toxicity characteristic leaching procedure (TCLP) tests confirmed a 53.80 % reduction in Pb leachability, highlighting reduced bioavailability and ecological risks. This work underscores the potential of LDH/CSB as a sustainable and efficient material for Pb-contaminated soil remediation, with broader applications in heavy metal-polluted environments. Future studies should focus on optimizing field-scale application parameters and evaluating long-term stability.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100785"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144925474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Self-cleaning photocatalytic BiOI/Ti3C2 composite membrane for oil-water emulsion separation and dye removal 自洁光催化BiOI/Ti3C2复合膜用于油水乳液分离和染料去除
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100828
Song Wang , Xinyi Luo , Luxiang Tang , Xi Tan , Gang Chen , Guizhi Zhang , Wenhao Xie , Lintao Xu , Zonghe Huang , Xianming Zhang
{"title":"Self-cleaning photocatalytic BiOI/Ti3C2 composite membrane for oil-water emulsion separation and dye removal","authors":"Song Wang ,&nbsp;Xinyi Luo ,&nbsp;Luxiang Tang ,&nbsp;Xi Tan ,&nbsp;Gang Chen ,&nbsp;Guizhi Zhang ,&nbsp;Wenhao Xie ,&nbsp;Lintao Xu ,&nbsp;Zonghe Huang ,&nbsp;Xianming Zhang","doi":"10.1016/j.ceja.2025.100828","DOIUrl":"10.1016/j.ceja.2025.100828","url":null,"abstract":"<div><div>Membrane separation technology is widely used for wastewater treatment, but wastewater containing oil droplets and soluble pollutants results in severe membrane fouling. Photocatalysis technology is an efficient and eco-friendly way to degrade contaminants. In this work, photocatalytic BiOI/Ti<sub>3</sub>C<sub>2</sub> composite membranes were prepared via a simple self-assembly vacuum filter method for oil-water emulsion separation and dye degradation. The pure water flux of the optimal BiOI/Ti<sub>3</sub>C<sub>2</sub> composite membrane (M3) reaches 4720 Lm<sup>-2</sup>h<sup>-1</sup>bar<sup>-1</sup>, 1.2 times higher than that of pure Ti<sub>3</sub>C<sub>2</sub> membrane. Simultaneously, the composite membrane M3 has a high flux and oil rejection ratio (over 97 %) for oil/water emulsions. In addition, the composite membrane M3 has an excellent flux and dye removal effect for methylene blue(0.9954), rhodamine B(0.9984), and methyl orange (0.8670), respectively. More importantly, the composite membrane M3 exhibits a high permeation flux and rejection ratio for methylene blue under visible light irradiation after five consecutive cycles, indicating the M3 membrane has a good self-cleaning ability. Furthermore, the mechanisms of separation and photodegradation were discussed. This work provides a new strategy combining membrane separation and photocatalysis technology to treat multi-component oily wastewater.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100828"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144829942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Kinetic study into the phosphorus release and carbon conversion behavior of sewage sludge coke during gasification 污泥焦炭气化过程中磷释放与碳转化的动力学研究
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100826
Eric Franke , Sergei Shalnev , Felix Küster , Martin Gräbner
{"title":"Kinetic study into the phosphorus release and carbon conversion behavior of sewage sludge coke during gasification","authors":"Eric Franke ,&nbsp;Sergei Shalnev ,&nbsp;Felix Küster ,&nbsp;Martin Gräbner","doi":"10.1016/j.ceja.2025.100826","DOIUrl":"10.1016/j.ceja.2025.100826","url":null,"abstract":"<div><div>Sewage sludge (SS) is a promising secondary resource containing valuable elements such as carbon and phosphorus which can be recovered using thermochemical conversion and utilized for the chemical industry. The biogenic origin of carbon offers a renewable and sustainable alternative to fossil-based raw materials contributing to resource circularity and reducing the dependency on primary feedstocks. This study investigates the thermochemical carbon conversion and phosphorus release behavior from SS and sewage sludge coke (SSC) with a focus on determining the kinetics of the carbon conversion as well as the phosphorus release. The experiments were conducted using a thermogravimetric analysis under controlled gasification conditions with varying temperatures up to 1450°C, different heating rates (HRs) of 2.5 K min<sup>-1</sup> to 15 K min<sup>-1</sup> and gasification atmosphere compositions with different partial pressures of carbon dioxide in argon.</div><div>Both, the isothermal and non-isothermal method have been used to assess the carbon conversion and were compared with each other. The energies of activation were 175 kJ mol<sup>-1</sup> and 162 kJ mol<sup>-1</sup> for a p<sub>CO2</sub> of 1 bar with a reaction order of 0.68 ± 0.12. Three particle evolution models (VM, RPM and SCM) were implemented and compared. A novel method was used to determine the starting temperature of the phosphorus release (1015°C in nitrogen). Based on the peak positions of the phosphorus signal, the kinetic parameters (E<sub>A</sub> = 359 kJ mol<sup>-1</sup> and k<sub>0</sub> = 1.5 · 10<sup>9</sup> s<sup>-1</sup>) for the phosphorus release were determined.</div><div>These results provide new insights into the phosphorus release kinetics and contribute to the understanding required for process design and phosphorus recovery from SS.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100826"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carbon-based nanomaterials for water treatment: A comprehensive review of recent advances and mechanisms 用于水处理的碳基纳米材料:近期进展和机制的综合综述
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100834
Abas Siraj Hamda , Hirpha Adugna Areti , Rabira Lemessa Gudeta , Lata Deso Abo , Mani Jayakumar
{"title":"Carbon-based nanomaterials for water treatment: A comprehensive review of recent advances and mechanisms","authors":"Abas Siraj Hamda ,&nbsp;Hirpha Adugna Areti ,&nbsp;Rabira Lemessa Gudeta ,&nbsp;Lata Deso Abo ,&nbsp;Mani Jayakumar","doi":"10.1016/j.ceja.2025.100834","DOIUrl":"10.1016/j.ceja.2025.100834","url":null,"abstract":"<div><div>Heavy metal defilement in water resources positions a serious risk to social health and environment. Carbon-based nanomaterials, due to their sole physico-chemical properties like tunable surface functionalities, high surface area, and excellent adsorption capabilities, have considered as one of the potential candidates for water treatment. This comprehensive review offers a contemporary advances in the development and application of numerous carbon derived nano-materials, comprising of activated-carbon, biochar, carbon nano-tubes, carbon-quantum dots, and graphene-based materials, for the elimination of toxic heavy metals from aqueous environments. The mechanisms of metal adsorption, surface alterations to boost performance, regeneration potential, and challenges for real-world application are critically discussed. Future research directions are proposed to bridge existing gaps and promote sustainable utilization of carbon derived nano-materials in water treatment technologies.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100834"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144903974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bridging experiments and models, towards a new paradigm: DROP-PINN, a physics-informed neural network to predict droplet rupture in multiphase systems 连接实验和模型,走向一个新的范例:DROP-PINN,一个物理信息神经网络,用于预测多相系统中的液滴破裂
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100829
Grégory Bana , Fabrice Lamadie , Sophie Charton , Didier Lucor , Nida Sheibat-Othman
{"title":"Bridging experiments and models, towards a new paradigm: DROP-PINN, a physics-informed neural network to predict droplet rupture in multiphase systems","authors":"Grégory Bana ,&nbsp;Fabrice Lamadie ,&nbsp;Sophie Charton ,&nbsp;Didier Lucor ,&nbsp;Nida Sheibat-Othman","doi":"10.1016/j.ceja.2025.100829","DOIUrl":"10.1016/j.ceja.2025.100829","url":null,"abstract":"<div><div>The population balance equation (PBE) is today a convenient tool to describe the evolution of multiphase systems, such as bubble plumes or columns, mixing tanks, solvent extraction columns, where they are used to infer the particle size distribution required to quantify buoyancy forces or the interfacial exchange area. However, the PBE often rely on semi-empirical models (or kernels) to predict the events likely to modify the population properties, such as breakage and coalescence. These kernels contain parameters that are tailored to specific fluid properties and operating conditions, thus limiting their general applicability (i.e. transposition to other operating conditions or processes than those used during model development). As a consequence, accurately predicting the frequency of events that modify the population of droplets remains challenging. In this study, we focus on the breakage phenomenon. Recent advances in machine learning, particularly Artificial Neural Networks (ANNs), present new opportunities for predicting the breakage frequencies. However, ANN training requires a large and high-fidelity dataset, making it time-consuming and error-prone. Physics-Informed Neural Networks (PINNs) may address this challenge by embedding physical laws into the learning process, ensuring physically consistent PBE predictions. This paper introduces a novel PINN-based algorithm that is trained to infer the droplet breakage frequencies in a turbulent agitated vessel without prior knowledge of the breakage kernel. It uses only the PBE discretized structure and a reasonable number of measured droplet size distributions obtained by in situ imaging. The methodology, we have named DROP-PINN, is first deployed and evaluated through controlled simulations, then experimentally over a wide range of dispersed phase viscosity, interfacial tension and agitation speed.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100829"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144889134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multiscale computing in complex gas-solid reactive systems—— A macroscale study on complexity 复杂气固反应体系的多尺度计算——复杂性的宏观尺度研究
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100808
Chengzhe Du
{"title":"Multiscale computing in complex gas-solid reactive systems—— A macroscale study on complexity","authors":"Chengzhe Du","doi":"10.1016/j.ceja.2025.100808","DOIUrl":"10.1016/j.ceja.2025.100808","url":null,"abstract":"<div><div>Complex systems and complexity science have gained attention in recent years. In the field of chemical engineering, fluidized bed systems serve as typical examples characterized by nonlinearity, non-equilibrium, dissipative structures, etc. However, our current understanding of the complexity therein remains limited. This study aims to apply concepts from complexity science to the multi-scale computational processes, where complex gas-solid reactive flow systems are targeted. By examining two specific application scenarios in the Energy Minimization Multi-Scale (EMMS) model, concepts such as phase transitions and fractal/self-similarity are demonstrated within the realm of complexity science. After illustrating effects of different handling strategies, general procedures for addressing complex scenarios in macroscopic simulations are derived. This study represents an initial step towards uncovering the underlying connections among fluidization systems, multiscale simulations, and complexity science, thus providing opportunities for further exploration of complexity across different scales.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100808"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Kinetics of the MgSO4 . 6H2Odehydration reaction for low-temperature thermochemical energy storage applications MgSO4的动力学。6h2o脱水反应在低温热化学储能中的应用
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100814
Tobias Niederkofler , Aldo Giovannini , Roman Lackner
{"title":"Kinetics of the MgSO4 . 6H2Odehydration reaction for low-temperature thermochemical energy storage applications","authors":"Tobias Niederkofler ,&nbsp;Aldo Giovannini ,&nbsp;Roman Lackner","doi":"10.1016/j.ceja.2025.100814","DOIUrl":"10.1016/j.ceja.2025.100814","url":null,"abstract":"<div><div>Transitioning to renewable energy systems for residential thermal energy supply requires replacing carbon-based technologies. However, renewable energy generation is inherently intermittent, leading to supply–demand mismatches that reduce efficiency. Long-term storage solutions are essential to bridge these gaps and ensure a reliable thermal energy supply. Magnesium sulfate shows promising behavior as a thermochemical energy storage material, but its practical implementation is limited by kinetic constraints. This study models the dehydration reaction of <figure><img></figure> up to a temperature of 150<!--> <!-->°C, a temperature range compatible with solar thermal collectors, using thermogravimetric analysis at a water vapor pressure of 12<!--> <!-->hPa. Through a differential isoconversional method, the reaction from hexahydrate to monohydrate is examined to detect intermediate reaction steps. Moreover, the study identifies an appropriate reaction model and analyzes the dependence of the reaction rate on temperature and pressure. The resulting model shows strong alignment with experimental data, providing valuable insight into the dehydration kinetics of magnesium sulfate under realistic operating conditions and advancing renewable energy storage solutions.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100814"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144829943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological transformation of silver nanoparticles to nanofibers via gallic acid conjugation: A synergistic approach against multidrug-resistant pathogens 通过没食子酸偶联银纳米粒子到纳米纤维的形态转化:一种对抗多重耐药病原体的协同方法
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100836
Dhuha S. Khaleel, Thamer Y. Mutter, Layth L. Hamid, Omar M. Hassan
{"title":"Morphological transformation of silver nanoparticles to nanofibers via gallic acid conjugation: A synergistic approach against multidrug-resistant pathogens","authors":"Dhuha S. Khaleel,&nbsp;Thamer Y. Mutter,&nbsp;Layth L. Hamid,&nbsp;Omar M. Hassan","doi":"10.1016/j.ceja.2025.100836","DOIUrl":"10.1016/j.ceja.2025.100836","url":null,"abstract":"<div><div>The rise of multidrug-resistant (MDR) bacteria poses a serious public health challenge, prompting the search for new antimicrobial strategies. This study reports the green synthesis of silver nanoparticles (AgNPs) using a 1:1 extract of <em>Cinnamomum cassia</em> and <em>Zingiber officinale</em>, followed by their transformation into silver nanofibers through conjugation with gallic acid (GA). The biosynthesized AgNPs and GA-Ag nanofibers were characterized using UV–Vis spectroscopy, XRD, FTIR, and SEM, confirming successful synthesis, structural integrity, and anisotropic growth into nanofibrous. Antibacterial assays showed that GA-Ag nanofibers had markedly higher activity against both Gram-positive and Gram-negative MDR strains, including <em>Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae</em>, and <em>Pseudomonas aeruginosa,</em> with inhibition zones up to 50 mm and MIC values as low as 1.32 μg/mL, outperforming AgNPs or GA alone. GA-Ag nanofibers also achieved up to 90 % biofilm inhibition and disrupted bacterial cell morphology, as confirmed by SEM imaging. The synergy between silver and gallic acid, together with the nanofibrous morphology, offers a promising platform for developing next-generation antimicrobial agents against MDR pathogens.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100836"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aliovalent doping strategy toward band structure modulation and enhanced mechanoluminescence of CaZnOS: Mn2+ 掺杂CaZnOS: Mn2+的能带结构调制和机械发光增强策略
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100820
Zhihao Wang , Shuanglin Zhang , Xiping Zeng , Dengfeng Peng , Yu Wang , Jinbo Wu
{"title":"Aliovalent doping strategy toward band structure modulation and enhanced mechanoluminescence of CaZnOS: Mn2+","authors":"Zhihao Wang ,&nbsp;Shuanglin Zhang ,&nbsp;Xiping Zeng ,&nbsp;Dengfeng Peng ,&nbsp;Yu Wang ,&nbsp;Jinbo Wu","doi":"10.1016/j.ceja.2025.100820","DOIUrl":"10.1016/j.ceja.2025.100820","url":null,"abstract":"<div><div>Mechanoluminescence (ML) behavior has been extensively studied in recent years in fields such as sensing and lighting. The primary obstacle hindering the large-scale commercial application of ML materials is that they only exhibit significant luminescence when subjected to relatively strong stress stimuli. We in this work employed the aliovalent doping strategy in the ML matrix CaZnOS for the first time to modify the crystal and electronic structure of the material, thereby optimizing its ML property. The impact of Ca<sup>2+</sup> substitution by (<em>K</em><sup>+</sup>, Gd<sup>3+</sup>) ionic pair on phase purity, composition and morphology was systematically analyzed by the combined techniques of XRD, ICP, TEM, and XPS. The band structure of the representative samples was further investigated using UV–Vis measurements and density functional theory (DFT) calculations. After aliovalent doping, not only the concentration of oxygen vacancy increased but also the band gap narrowed. These two changes respectively enhanced the number of hole-electron pairs and facilitated their combination during the ML process, ultimately leading to an enhancement of the ML intensity.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100820"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydrodeoxygenation of bis(2-hydroxyethyl) terephthalate as a model compound of polyethylene terephthalate waste using spray pyrolysis synthesis of γ-Al2O3 supported Ni-Fe catalyst 以(2-羟乙基)对苯二甲酸乙二醇酯为模型化合物的聚对苯二甲酸乙二醇酯废弃物采用喷雾热解合成γ-Al2O3负载Ni-Fe催化剂
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2025-08-01 DOI: 10.1016/j.ceja.2025.100832
Syarif Hidayat , Jeonghun Han , Thuan Anh Vo , Jae-Rak Jeon , Jinsoo Kim , Hyun Tae Hwang , Xinxing Zhou , Seung-Soo Kim
{"title":"Hydrodeoxygenation of bis(2-hydroxyethyl) terephthalate as a model compound of polyethylene terephthalate waste using spray pyrolysis synthesis of γ-Al2O3 supported Ni-Fe catalyst","authors":"Syarif Hidayat ,&nbsp;Jeonghun Han ,&nbsp;Thuan Anh Vo ,&nbsp;Jae-Rak Jeon ,&nbsp;Jinsoo Kim ,&nbsp;Hyun Tae Hwang ,&nbsp;Xinxing Zhou ,&nbsp;Seung-Soo Kim","doi":"10.1016/j.ceja.2025.100832","DOIUrl":"10.1016/j.ceja.2025.100832","url":null,"abstract":"<div><div>Polyethylene terephthalate (PET) waste poses a significant environmental challenge due to its persistence and limited chemical recycling options. Conventional hydrodeoxygenation (HDO) strategies for PET depolymerization products often require high pressure or noble metals, limiting their scalability and economic viability. In this study, bis(2-hydroxyethyl) terephthalate (BHET), a primary glycolysis product of PET, was employed as a model compound to evaluate an efficient HDO route using non-noble, bimetallic Ni–Fe catalysts supported on γ-Al<sub>2</sub>O<sub>3</sub> under atmospheric pressure. The reaction was conducted in a fixed-bed reactor at 400 - 500 °C using 2-ethylphenol as both solvent and hydrogen donor. Among the catalysts tested, Ni5-Fe15 exhibited superior performance, achieving 99.41 % BHET conversion and 76.57 % deoxygenation degree at 475 ℃. The incorporation of Fe improved acid site density and facilitated the formation of a NiFe alloy, enhancing C-O bond cleavage and selectivity toward aromatic hydrocarbons such as benzene (37.37 %) and naphthalene (18.80 %). Gas analysis revealed the evolution of C<sub>1</sub>-C<sub>3</sub> hydrocarbons and dominant CO<sub>2</sub> formation, indicating decarboxylation as a primary pathway. The gas product analysis detected hydrocarbon gases C<sub>1</sub>-C<sub>3</sub>, suggesting various reaction pathways, including decarboxylation, decarbonylation, and demethylation. Using bimetallic catalysts resulted in a decrease in CO selectivity but an increase in CO<sub>2</sub> selectivity, which may be attributed to the formation of NiFe alloy within the catalyst.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"23 ","pages":"Article 100832"},"PeriodicalIF":7.1,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144863701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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