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Cross-Attention Feature Fusion network for robust estimation of Cd2+ and Pb2+ in water samples using Cyclic Voltammetry 交叉关注特征融合网络用于循环伏安法对水样中Cd2+和Pb2+的鲁棒估计
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-31 DOI: 10.1016/j.ceja.2026.101065
Rizqy Ahsana Putri , Riyanarto Sarno , Wahyu Prasetyo Utomo , Fadlilatul Taufany , Kelly Rossa Sungkono , Taufiq Choirul Amri , Alya Kamilah , Rini Handayani , Sang-Seok Lee , A. Min Tjoa , Arif Abdullah Sagran
Voltammetry is a promising technique for estimating heavy metal pollution such as Cadmium (Cd2+) and Lead (Pb2+) in water. Its advantages include rapid analysis and cost-effectiveness over established methods like Atomic Absorption Spectroscopy (AAS) and Inductively Coupled Plasma - Mass Spectrometry (ICP-MS). However, current analysis often depends only on peak data, ignoring the rest of the voltammetric signal which may contain useful information that could potentially improve measurement accuracy. To address this limitation, the Cross-Attention Feature Fusion (CAFF) network is proposed to analyze Cyclic Voltammetry (CV) signals acquired using a 3-electrode setup with a Glassy Carbon Electrode (GCE) as the working electrode, Platinum as the counter, and Ag/AgCl as the reference. Unlike standard self-attention mechanisms or simple concatenation fusion methods, CAFF introduces a novel dual-stream architecture that dynamically captures the inter-dependencies between raw CV signals and extracted peak data—an approach previously unexplored in electrochemical sensing. The model integrates an Improved Beluga Whale Optimization (IBWO) algorithm that automatically determines the optimal hyperparameters, resulting in a more robust model. Robustness was assessed using Chemically-Informed Degradation Simulation (CIDS). As a result, the proposed CAFF-IBWO model demonstrated superior performance, achieving R2 values of 0.97 for Cd2+ and 1.00 for Pb2+. It also significantly reduced the Mean Absolute Percentage Error (MAPE) by 65.79% for Cd2+ and 72.50% for Pb2+ compared to single-input attention networks. Furthermore, CAFF-IBWO exhibited remarkable resilience against signal degradation, maintaining stable prediction performance across varying noise conditions. While the study focuses specifically on Cd2+ and Pb2+ and requires further validation for broader generalization, the demonstrated performance is highly promising. These findings underscore the model’s potential for real-world environmental sensing applications.
伏安法是测定水中镉(Cd2+)和铅(Pb2+)等重金属污染的一种很有前途的技术。它的优点包括与原子吸收光谱(AAS)和电感耦合等离子体质谱(ICP-MS)等现有方法相比的快速分析和成本效益。然而,电流分析通常只依赖于峰值数据,而忽略了伏安信号的其余部分,这些部分可能包含有用的信息,可以潜在地提高测量精度。为了解决这一限制,提出了交叉注意特征融合(CAFF)网络来分析使用三电极设置获得的循环伏安(CV)信号,其中玻璃碳电极(GCE)为工作电极,铂为计数器,Ag/AgCl为参考。与标准的自关注机制或简单的串联融合方法不同,CAFF引入了一种新的双流架构,可以动态捕获原始CV信号和提取的峰值数据之间的相互依赖关系,这是一种在电化学传感中从未探索过的方法。该模型集成了一种改进的白鲸优化(IBWO)算法,可自动确定最优超参数,从而使模型更加鲁棒。鲁棒性评估使用化学信息退化模拟(CIDS)。结果表明,所提出的caf - ibwo模型表现出较好的性能,Cd2+的R2值为0.97,Pb2+的R2值为1.00。与单输入注意力网络相比,Cd2+的平均绝对百分比误差(MAPE)显著降低了65.79%,Pb2+的平均绝对百分比误差降低了72.50%。此外,caf - ibwo对信号退化表现出显著的弹性,在不同的噪声条件下保持稳定的预测性能。虽然该研究特别关注Cd2+和Pb2+,需要进一步验证以更广泛的推广,但所展示的性能是非有希望的。这些发现强调了该模型在现实世界环境传感应用中的潜力。
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引用次数: 0
Enhanced sulfide-driven autotrophic denitrification/ammonium oxidation process via metabolic cooperation of anaerobic bacterial consortia in a packed-bed bioreactor 填料床生物反应器中厌氧菌群代谢合作强化硫化物驱动自养反硝化/氨氧化过程
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-27 DOI: 10.1016/j.ceja.2026.101062
Hawzhin Amanollahi , Gholamreza Moussavi , Stefanos Giannakis
In this study, a laboratory-scale packed-bed bioreactor (PBBR) was developed to integrate sulfide-driven autotrophic denitrification with anaerobic ammonium oxidation. The system was operated for 322 days under anaerobic conditions and evaluated across three phases: sulfide-driven denitrification, ammonium removal, and the combined enhanced Sulfide-Driven Autotrophic Denitrification/Ammonium Oxidation (SADAO) process. Despite short hydraulic retention times (HRTs), the reactor consistently achieved high nitrogen removal. At an HRT of 3 h, nitrate and ammonium removal approached 97 % and 92 %, respectively, and even at 1 h HRT, overall nitrogen removal remained above 82 %, with a volumetric rate of as high as 55.3 g-N/m³·h. Sulfide was fully consumed, producing elemental sulfur and sulfate as end products. The efficient coupling of sulfur oxidation, autotrophic denitrification, and anammox without nitrite accumulation was related to the presence of a stable community of Thiobacillus spp., Georgfuchsia toluolica, and anammox-related Planctomycetes. These interactions supported high-rate, low-HRT nitrogen removal, demonstrating a compact and sustainable strategy for treating nitrate- and ammonium-rich wastewaters.
在这项研究中,开发了一个实验室规模的填料床生物反应器(PBBR),将硫化物驱动的自养反硝化与厌氧氨氧化相结合。该系统在厌氧条件下运行了322天,并通过三个阶段进行了评估:硫化物驱动反硝化、氨氮去除和硫化物驱动自养反硝化/氨氧化(SADAO)联合强化工艺。尽管水力停留时间(hrt)较短,但反应器始终保持高氮去除率。在HRT为3 h时,硝态氮和铵态氮的去除率分别接近97%和92%,即使在HRT为1 h时,总氮去除率仍保持在82%以上,体积率高达55.3 g-N/m³·h。硫化物被充分消耗,产生单质硫和硫酸盐作为最终产品。硫氧化、自养反硝化和无亚硝酸盐积累的厌氧氨氧化的有效耦合与硫杆菌、红毛george fuchsia tololica和厌氧氨氧化相关植物菌的稳定群落有关。这些相互作用支持高速率、低hrt脱氮,展示了处理富硝酸盐和富铵废水的紧凑和可持续策略。
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引用次数: 0
Enhanced oxidative leaching of copper-iron sulfides using photo-assisted electrochemical advanced oxidation processes 利用光辅助电化学高级氧化工艺强化铜铁硫化物的氧化浸出
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-26 DOI: 10.1016/j.ceja.2026.101060
Juan Pablo Fuentes , Sapana Jadoun , Orlando Yepsen , Ricardo Salazar-González , Camilo Rivera-Vera , Lorena Cornejo-Ponce , David Conteras , Héctor D. Mansilla , Jorge Yáñez
In this work, the effectiveness of electro-Fenton and photoelectro-Fenton processes for enhancing the oxidative leaching of copper-iron sulfide minerals such as chalcopyrite (CuFeS2) and bornite (Cu5FeS4) in aqueous suspension was investigated. Electro-Fenton experiments were conducted in an electrochemical reactor equipped with a boron-doped diamond anode and a carbon-polytetrafluoroethylene gas-diffusion electrode as a cathode. The results show that, after 3 h, CuFeS₂ and Cu₅FeS₄ reached Cu and Fe leaching rates of 20% and 26%, respectively. These findings demonstrate enhanced performance under mild conditions compared to conventional leaching processes. Additionally, UV–Vis light irradiation was evaluated to assess the contribution of light-induced mechanisms, including photocorrosion and photo-Fenton reactions, establishing that the enhancement in leaching yield was relatively less significant (≈5%). The involvement of radical species such as hydroxyl and sulfate radicals was evaluated using in-situ electron paramagnetic resonance spectroscopy. Furthermore, the role of physisorbed hydroxyl radicals was evaluated by using an active metal mixed oxide anode in place of boron-doped diamond anode. This study demonstrates that in-situ electro-generated H2O2, together with dissolved iron (Fe2+ and Fe3+) and copper ions (Cu2+), can trigger Fenton, and photo-Fenton mechanisms, thereby promoting the oxidative dissolution of sulfide minerals. These findings provide a proof of concept for a more sustainable and alternative approach to mineral resource leaching.
在这项工作中,研究了电- fenton和光电- fenton工艺对提高水悬浮液中黄铜矿(CuFeS2)和斑铜矿(Cu5FeS4)等铜铁硫化物矿物氧化浸出的有效性。在以掺硼金刚石阳极和碳-聚四氟乙烯气体扩散电极为阴极的电化学反应器中进行了电fenton实验。结果表明,在3 h后,CuFeS₂和Cu₅FeS₄的Cu和Fe浸出率分别达到20%和26%。这些发现表明,与传统浸出工艺相比,在温和条件下的性能有所提高。此外,我们还评估了UV-Vis光照射对光诱导机制的贡献,包括光腐蚀和光fenton反应,结果表明,浸出率的提高相对不太显著(≈5%)。利用原位电子顺磁共振波谱法对羟基和硫酸盐自由基等自由基的参与进行了评价。此外,通过使用活性金属混合氧化物阳极代替掺杂硼的金刚石阳极来评价物理吸附羟基自由基的作用。本研究表明,原位电生成的H2O2与溶解的铁离子(Fe2+和Fe3+)和铜离子(Cu2+)共同触发Fenton和光Fenton机制,从而促进硫化物矿物的氧化溶解。这些发现为更可持续的矿物资源浸出替代方法提供了概念证明。
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引用次数: 0
High-purity and high-recovery lithium extraction via dual selectivity optimization of ion and water in a batch nanofiltration–RO process for spent LiB leachates 离子和水双选择性优化间歇纳滤-反渗透工艺提取锂废渗滤液的高纯度和高回收率
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-26 DOI: 10.1016/j.ceja.2026.101061
Ryoma Miyamoto , Shinichi Minegishi , Yutaro Takaya , Chiharu Tokoro
To recover Li⁺ from sulfuric‑acid leachates of spent lithium‑ion batteries, we developed a batch‑type nanofiltration (NF)–reverse osmosis (RO) process with NF retentate recirculation and pH control. The batch configuration enables time‑based tuning of recovery under high overall recovery constraints. A two‑stage NF followed by RO was analyzed experimentally and through process simulation to separate Li⁺, sulfuric acid, and water. Experiments using a Mg²⁺/Li⁺ sulfate model system achieved high Li⁺ purity (> 99.8 wt%) and overall recovery (> 99 %), although with higher acid consumption than the optimized simulation. Under aligned ≥ 99 % recovery and product concentration targets, simulations show that the batch process and an aligned continuous NF–RO process require comparable external water make‑up owing to RO permeate reuse, whereas the continuous process involves approximately tenfold larger internal RO permeate circulation and sulfuric acid addition. Using Mg²⁺ as a surrogate multivalent cation, further validation with real leachates is required to confirm robustness under complex compositions.
为了从废锂离子电池硫酸浸出液中回收Li +,我们开发了一种批式纳滤(NF) -反渗透(RO)工艺,采用NF截留液循环和pH控制。批处理配置允许在高总体恢复约束下对恢复进行基于时间的调整。实验分析了两段NF + RO分离Li +、硫酸和水的过程,并进行了过程模拟。采用Mg 2 + /硫酸Li +模型体系的实验获得了高Li +纯度(> 99.8 wt%)和总回收率(> 99%),尽管酸消耗高于优化后的模拟。模拟结果表明,在≥99%回收率和产品浓度目标下,间歇式工艺和连续式NF-RO工艺由于RO渗透回用而需要相当的外部补水,而连续式工艺需要大约10倍的内部RO渗透循环和硫酸添加。使用Mg 2 +作为替代多价阳离子,需要用真实的渗滤液进一步验证,以确认在复杂成分下的稳健性。
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引用次数: 0
First-time evaluation of 137Cs adsorption onto virgin PLA, PET, and PVC microplastics 137Cs在原聚乳酸、PET和PVC微塑料上吸附的首次评价
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-23 DOI: 10.1016/j.ceja.2026.101057
Süleyman İnan , Vipul Vilas Kusumkar , Helena Švajdlenková , Peter Machata , Jan Bednárek , Eva Viglašová , Michal Galamboš
This study presents the first investigation into the adsorption behaviours of polylactic acid (PLA), polyethylene terephthalate (PET), and polyvinyl chloride (PVC) virgin microplastics (MPs) for cesium-137 (137Cs) from aqueous solutions. The MPs were characterized using field-emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and pHpzc analysis. The effects of various parameters, including solution pH, contact time, Cs⁺ concentration, adsorbent dosage, temperature, and the presence of matrix ions, were examined.
The adsorption study results indicate that adsorption capacity is strongly influenced by pH. PLA shows enhanced uptake under alkaline conditions (maximum: 29.0 µg/g at pH 8), PET favors acidic conditions, while PVC shows different behavior with peak adsorption at pH 4. Kinetic analysis revealed that Cs⁺ adsorption follows a pseudo-second-order model, indicating chemisorption dominance, which was further confirmed by FT-IR and XPS analyses, with PLA achieving the fastest and highest uptake (∼39 µg/g) due to abundant functional groups. Isotherm modelling revealed multilayer adsorption on PLA and PET (Freundlich model) and monolayer adsorption on PVC (Langmuir model), with the latter exhibiting the highest theoretical capacity of 10.28 mg/g. Adsorbent dosage inversely affected adsorption capacity, while thermodynamic studies confirmed the process is spontaneous, endothermic, and entropy-driven. Under competitive cation conditions, PVC demonstrated a pronounced increase in Cs+ uptake possibly due to the ion-bridging due to steric or functional group constraints.
These findings elucidate microplastic interactions with Cs+, providing valuable insights for environmental risk assessment and adsorption behaviour of the PLA, PET and PVC MPs for the transport of Cs+in the environment.
本研究首次研究了聚乳酸(PLA)、聚对苯二甲酸乙二醇酯(PET)和聚氯乙烯(PVC)原生微塑料(MPs)对水溶液中铯-137 (137Cs)的吸附行为。采用场发射扫描电镜(FE-SEM)、傅里叶变换红外光谱(FTIR)、x射线光电子能谱(XPS)和pHpzc分析对MPs进行了表征。考察了溶液pH、接触时间、Cs +浓度、吸附剂用量、温度和基质离子存在等参数的影响。吸附研究结果表明,pH值对PLA的吸附量影响较大,在碱性条件下PLA的吸附量增强(pH值为8时最大吸附量为29.0µg/g),在酸性条件下PET的吸附量增强,而在pH值为4时PVC的吸附量最大。动力学分析显示,Cs⁺的吸附遵循伪二级模型,表明了化学吸附优势,FT-IR和XPS分析进一步证实了这一点,由于含有丰富的官能团,PLA的吸附速度最快,最高(~ 39µg/g)。等温线模型显示PLA和PET的多层吸附(Freundlich模型)和PVC的单层吸附(Langmuir模型),后者的理论容量最高,为10.28 mg/g。吸附剂用量与吸附量成反比,而热力学研究证实该过程是自发的、吸热的、熵驱动的。在竞争性阳离子条件下,PVC表现出明显的Cs+摄取增加,这可能是由于空间或官能团限制引起的离子桥接。这些发现阐明了微塑料与Cs+的相互作用,为环境风险评估和PLA、PET和PVC MPs对Cs+在环境中运输的吸附行为提供了有价值的见解。
{"title":"First-time evaluation of 137Cs adsorption onto virgin PLA, PET, and PVC microplastics","authors":"Süleyman İnan ,&nbsp;Vipul Vilas Kusumkar ,&nbsp;Helena Švajdlenková ,&nbsp;Peter Machata ,&nbsp;Jan Bednárek ,&nbsp;Eva Viglašová ,&nbsp;Michal Galamboš","doi":"10.1016/j.ceja.2026.101057","DOIUrl":"10.1016/j.ceja.2026.101057","url":null,"abstract":"<div><div>This study presents the first investigation into the adsorption behaviours of polylactic acid (PLA), polyethylene terephthalate (PET), and polyvinyl chloride (PVC) virgin microplastics (MPs) for cesium-137 (<sup>137</sup>Cs) from aqueous solutions. The MPs were characterized using field-emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and pHpzc analysis. The effects of various parameters, including solution pH, contact time, Cs⁺ concentration, adsorbent dosage, temperature, and the presence of matrix ions, were examined.</div><div>The adsorption study results indicate that adsorption capacity is strongly influenced by pH. PLA shows enhanced uptake under alkaline conditions (maximum: 29.0 µg/g at pH 8), PET favors acidic conditions, while PVC shows different behavior with peak adsorption at pH 4. Kinetic analysis revealed that Cs⁺ adsorption follows a pseudo-second-order model, indicating chemisorption dominance, which was further confirmed by FT-IR and XPS analyses, with PLA achieving the fastest and highest uptake (∼39 µg/g) due to abundant functional groups. Isotherm modelling revealed multilayer adsorption on PLA and PET (Freundlich model) and monolayer adsorption on PVC (Langmuir model), with the latter exhibiting the highest theoretical capacity of 10.28 mg/g. Adsorbent dosage inversely affected adsorption capacity, while thermodynamic studies confirmed the process is spontaneous, endothermic, and entropy-driven. Under competitive cation conditions, PVC demonstrated a pronounced increase in Cs<sup>+</sup> uptake possibly due to the ion-bridging due to steric or functional group constraints.</div><div>These findings elucidate microplastic interactions with Cs<sup>+</sup>, providing valuable insights for environmental risk assessment and adsorption behaviour of the PLA, PET and PVC MPs for the transport of Cs<sup>+</sup>in the environment.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101057"},"PeriodicalIF":7.1,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146073729","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
Unlocking the potential of recycled waste cooking oil for a sustainable volatile organic compound absorption process 为可持续的挥发性有机化合物吸收过程释放回收废食用油的潜力
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-22 DOI: 10.1016/j.ceja.2026.101055
P. Villarim , A. Ahmad Kassem , A. Mannu , A. Mele , J. Zemmouri , S. Fourmentin
Finding suitable absorbents to remove volatile organic compounds (VOCs) from industrial polluted air remains a pressing scientific and industrial challenge. Most VOCs are hydrophobic and water demonstrates limited mass transfer in this case. In this study, we evaluated the feasibility of using recycled waste cooking oil (RWCO) to absorb VOCs for the first time. We compared the performance of RWCO with that of two deep eutectic solvents (DESs), including a hydrophobic DES prepared from decanoic and dodecanoic acids (C10:C12) and a supramolecular DES based on randomly methylated β-cyclodextrin (RAMEB) and levulinic acid, and with a conventional solvent, propylene glycol (PG), in absorbing four hydrophobic VOCs, toluene, limonene, siloxane D4, and decane. The vapor-liquid partition coefficients (K) of the VOCs alone and in mixture were determined using static headspace gas chromatography (SH-GC). A lab-scale bubbling device was used to measure absorption capacities under simulated industrial conditions. Results from the static method showed that RWCO performed similarly to the hydrophobic DES C10:C12, exhibiting the highest absorption affinities for the tested VOCs, with K values up to 208 000 times lower than in water. Dynamic absorption studies corroborated these results, highlighting RWCO and C10:C12 as the most effective absorbents, with an absorption capacity up to 0.884 mg/g for toluene at 100 ppm. This study also demonstrated that bubbling nitrogen in addition to heating at 60°C reduced regeneration time from 48 hours to 2.5 hours. The RWCO and C10:C12 absorbents retained over 99.5% of their initial absorption capacity after undergoing twelve consecutive absorption-desorption cycles. These results suggest that RWCO could be an effective and sustainable absorbent for VOCs abatement while complying with circular economy concept.
寻找合适的吸收剂来去除工业污染空气中的挥发性有机化合物(VOCs)仍然是一个紧迫的科学和工业挑战。大多数挥发性有机化合物是疏水性的,在这种情况下,水的传质有限。本研究首次对利用再生废食用油(RWCO)吸附VOCs的可行性进行了评价。我们比较了RWCO与两种深度共晶溶剂(DESs)的吸附性能,其中一种是由十烷酸和十二烷酸(C10:C12)制备的疏水溶剂,另一种是由随机甲基化的β-环糊精(RAMEB)和乙酰丙酸制备的超分子DES,并与常规溶剂丙二醇(PG)吸附四种疏水VOCs,即甲苯、柠檬烯、硅氧烷D4和癸烷。采用静态顶空气相色谱法(SH-GC)测定了单独挥发性有机化合物和混合挥发性有机化合物的气液分配系数(K)。在模拟工业条件下,用实验室规模的鼓泡装置测量了吸附能力。静态方法的结果表明,RWCO的性能与疏水性DES C10:C12相似,对测试voc的吸收亲和力最高,K值比水中低20.8万倍。动态吸收研究证实了这些结果,强调RWCO和C10:C12是最有效的吸收剂,在100 ppm时对甲苯的吸收能力高达0.884 mg/g。该研究还表明,鼓泡氮气加上60℃加热可将再生时间从48小时缩短至2.5小时。RWCO和C10:C12吸附剂经过12个连续的吸收-解吸循环后,仍保持了99.5%以上的初始吸收容量。这些结果表明,在符合循环经济理念的情况下,RWCO可以成为有效和可持续的VOCs吸收剂。
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引用次数: 0
Representative secondary PET micro and nanoplastics via ethylene glycol fragmentation (EGF): Physicochemical and immuno-toxicological properties 乙二醇破碎(EGF)的典型二次PET微塑料和纳米塑料:理化和免疫毒理学特性
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-22 DOI: 10.1016/j.ceja.2026.101053
Mohammed Monsoor Shaik , Diletta Ami , Alessio Romerio , Calogero Gagliano , Charys Palmer , Zaineh Aladailleh , Elijah Mitchell , Janet Lopez Chavez , Asma Zain , Stefano Farris , Mattia Gaboardi , Antonino Natalello , Grisha Pirianov , Francesco Peri
Polyethylene terephthalate (PET) micro and nanoplastics (MNPs) are widely dispersed pollutants with significant environmental and health implications. Current preparation methods of representative secondary PET MNPs are limited. In this study, we developed a scalable, standardized ethylene glycol fragmentation (EGF)-based method to generate PET MNPs from three distinct plastic sources (commercial pellets, bottle-grade, and film-grade). PET samples were depolymerized using ethylene glycol and sodium carbonate under controlled thermal conditions. Two fractions (Ea and Eb) were collected and analyzed, fraction Ea consisted of covalently fragmented BHET-oligomer-based nanoplastics (∼200–375 nm), while fraction Eb comprised non-covalent BHET-based larger microplastic aggregates (∼1.2–1.9 µm). EGF method turned out to be more efficient than published trifluoroacetic acid (TFA) method giving mainly BHET-oligomer-based nanoplastics with higher yields and improved MNPs size control. MNPs generated by EGF showed a size range between 200 and 375 nm with good colloidal stability. In vitro assays showed that both type (covalent and non-covalent) of PET nanoplastics reduced THP-1 macrophage viability in a dose-dependent manner which was associated with IL-1β release, and triggered an M1-polarizing cytokine profile, thus indicating potential toxicity and proinflammatory activity. Our EGF-based synthesis platform enables controlled production of PET MNPs with source-dependent characteristics and biologically relevant behavior. These standardized MNPs and the THP-1 macrophages biosensor model provide useful tools for environmental toxicology research.
聚对苯二甲酸乙二醇酯(PET)微塑料和纳米塑料(MNPs)是广泛分布的污染物,具有重大的环境和健康影响。目前具有代表性的PET二级MNPs的制备方法有限。在这项研究中,我们开发了一种可扩展的、标准化的乙二醇裂解(EGF)为基础的方法,从三种不同的塑料来源(商业颗粒、瓶级和薄膜级)生产PET MNPs。在可控的热条件下,用乙二醇和碳酸钠对PET样品进行解聚。收集并分析了两个部分(Ea和Eb), Ea部分由共价碎片化的基于bhet低聚物的纳米塑料组成(~ 200-375 nm),而Eb部分由非共价基于bhet的较大微塑料聚集体组成(~ 1.2-1.9µm)。结果表明,EGF法比已发表的三氟乙酸(TFA)法更有效,主要是基于bht -低聚物的纳米塑料,产率更高,MNPs尺寸控制也更好。EGF制备的MNPs粒径在200 ~ 375 nm之间,具有良好的胶体稳定性。体外实验表明,两种类型(共价和非共价)的PET纳米塑料均以剂量依赖的方式降低THP-1巨噬细胞的活力,并与IL-1β释放相关,并引发m1极化细胞因子谱,从而表明潜在的毒性和促炎活性。我们基于egf的合成平台能够控制PET MNPs的生产,这些MNPs具有源依赖特性和生物学相关行为。这些标准化的MNPs和THP-1巨噬细胞生物传感器模型为环境毒理学研究提供了有用的工具。
{"title":"Representative secondary PET micro and nanoplastics via ethylene glycol fragmentation (EGF): Physicochemical and immuno-toxicological properties","authors":"Mohammed Monsoor Shaik ,&nbsp;Diletta Ami ,&nbsp;Alessio Romerio ,&nbsp;Calogero Gagliano ,&nbsp;Charys Palmer ,&nbsp;Zaineh Aladailleh ,&nbsp;Elijah Mitchell ,&nbsp;Janet Lopez Chavez ,&nbsp;Asma Zain ,&nbsp;Stefano Farris ,&nbsp;Mattia Gaboardi ,&nbsp;Antonino Natalello ,&nbsp;Grisha Pirianov ,&nbsp;Francesco Peri","doi":"10.1016/j.ceja.2026.101053","DOIUrl":"10.1016/j.ceja.2026.101053","url":null,"abstract":"<div><div>Polyethylene terephthalate (PET) micro and nanoplastics (MNPs) are widely dispersed pollutants with significant environmental and health implications. Current preparation methods of representative secondary PET MNPs are limited. In this study, we developed a scalable, standardized ethylene glycol fragmentation (EGF)-based method to generate PET MNPs from three distinct plastic sources (commercial pellets, bottle-grade, and film-grade). PET samples were depolymerized using ethylene glycol and sodium carbonate under controlled thermal conditions. Two fractions (Ea and Eb) were collected and analyzed, fraction Ea consisted of covalently fragmented BHET-oligomer-based nanoplastics (∼200–375 nm), while fraction Eb comprised non-covalent BHET-based larger microplastic aggregates (∼1.2–1.9 µm). EGF method turned out to be more efficient than published trifluoroacetic acid (TFA) method giving mainly BHET-oligomer-based nanoplastics with higher yields and improved MNPs size control. MNPs generated by EGF showed a size range between 200 and 375 nm with good colloidal stability. In vitro assays showed that both type (covalent and non-covalent) of PET nanoplastics reduced THP-1 macrophage viability in a dose-dependent manner which was associated with IL-1β release, and triggered an M1-polarizing cytokine profile, thus indicating potential toxicity and proinflammatory activity. Our EGF-based synthesis platform enables controlled production of PET MNPs with source-dependent characteristics and biologically relevant behavior. These standardized MNPs and the THP-1 macrophages biosensor model provide useful tools for environmental toxicology research.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101053"},"PeriodicalIF":7.1,"publicationDate":"2026-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146073553","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
Harnessing artificial intelligence and machine learning for next-generation bioremediation 利用人工智能和机器学习进行下一代生物修复
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-22 DOI: 10.1016/j.ceja.2026.101052
Praburaman Loganathan
This review explores recent trends in microbial and enzyme-based bioremediation and emphasizes the integration of artificial intelligence (AI) and machine learning (ML) to enhance contaminant removal in water and wastewater ecosystems. Diverse microorganisms, including bacteria, fungi, microalgae, and engineered consortia, effectively degrade organic compounds, heavy metals, dyes, hydrocarbons, and polycyclic aromatic hydrocarbons (PAHs). AI/ML approaches have been applied for predictive modelling, real-time monitoring, and process optimization, improving operational efficiency, treatment stability, and cost-effectiveness. Non-combinable strategies such as enzyme immobilization, engineered bioreactors, and co-cultivation, alongside chemical pretreatments and phytoremediation, further enhance degradation efficiency. A total of 180 studies from 2018 to 2025 were reviewed, showing significant improvements in water quality parameters (BOD, COD, TDS, nitrates, phosphates, Mg, Ca, Zn) and high removal efficiencies for hydrocarbons, dyes, and pharmaceuticals. The literature underscores the potential of AI/ML-enabled, eco-friendly, and cost-efficient bioremediation solutions, while highlighting the need for large-scale validation, synergistic method optimization, and field-level implementation to tackle emerging water contaminants effectively.
本文综述了基于微生物和酶的生物修复的最新趋势,并强调了人工智能(AI)和机器学习(ML)的整合,以增强水和废水生态系统中的污染物去除。多种微生物,包括细菌、真菌、微藻和工程菌群,可以有效地降解有机化合物、重金属、染料、碳氢化合物和多环芳烃(PAHs)。人工智能/机器学习方法已应用于预测建模、实时监测和流程优化,提高了操作效率、处理稳定性和成本效益。非组合策略,如酶固定化、工程生物反应器和共培养,以及化学预处理和植物修复,进一步提高了降解效率。从2018年到2025年,共有180项研究进行了回顾,表明水质参数(BOD, COD, TDS,硝酸盐,磷酸盐,Mg, Ca, Zn)得到了显着改善,并且对碳氢化合物,染料和药物的去除效率很高。这些文献强调了人工智能/机器学习支持的、生态友好的、具有成本效益的生物修复解决方案的潜力,同时强调了大规模验证、协同方法优化和现场实施的必要性,以有效地解决新出现的水污染物。
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引用次数: 0
Boosting the performance of EDLC-type supercapacitors using glucose-derived carbon/MWCNT hybrid electrode material and different electrolytes 利用葡萄糖衍生碳/MWCNT混合电极材料和不同电解质提高edlc型超级电容器的性能
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-22 DOI: 10.1016/j.ceja.2026.101054
Gabriela P. Queirós , Rui S. Costa , André M. Pereira , Natalia Rey-Raap , Clara R. Pereira , Manuel Fernando R. Pereira
In this work, a hybrid electrode material of glucose-derived carbon doped with oxidized multiwalled carbon nanotubes (CNT-O) was prepared and used as building block for the development of efficient sandwich-type supercapacitors (SCs). The influence of the type of electrolyte – H2SO4 and H3PO4 aqueous electrolytes and a safer solid-gel electrolyte of H3PO4-doped polyvinyl alcohol (PVA) – on the energy storage performance of the resulting SCs was unveiled. The hybrid material was fabricated through an eco-friendly process of hydrothermal carbonization of glucose with 2 wt% of CNT-O and subsequent physical activation. The hybrid exhibited high specific surface area (1177 m2 g-1), analogous to that reported for activated carbons, and was composed of spherical particles embedded in a CNT network. The SC_AG@CNT-O based on PVA-H3PO4 electrolyte exhibited the best energy storage performance, featuring an energy density of 41.57 μW h cm-2 at a power density of 66.82 mW cm-2, which are 32.2% and 74.7% higher, respectively, than those of the SC based on reference activated carbon Supra50. Moreover, it exhibited notable cycling stability, maintaining 93% of its initial capacitance over 8000 consecutive i-V cycles. This work constitutes an advance in the fabrication of efficient SCs using sustainable electrode materials and safer solid-gel electrolytes, while highlighting the crucial role of electrode-electrolyte compatibility in boosting energy storage performance. Beyond energy storage, the as-prepared glucose-derived carbon/CNT-O hybrid electrode material combining high surface area and electrical conductivity opens promising prospects for other applications, such as electrocatalysis, electrochemical sensors, and environmental remediation.
在这项工作中,制备了一种葡萄糖衍生碳掺杂氧化多壁碳纳米管(CNT-O)的杂化电极材料,并将其用作开发高效三明治型超级电容器(SCs)的基石。揭示了电解质类型- H2SO4和H3PO4水溶液电解质以及更安全的H3PO4掺杂聚乙烯醇(PVA)的固体凝胶电解质-对所制备的SCs储能性能的影响。该杂化材料是通过葡萄糖的水热碳化和2 wt%的碳纳米管- o和随后的物理活化的环保工艺制备的。该杂化物具有高比表面积(1177 m2 g-1),类似于活性炭,由嵌入碳纳米管网络的球形颗粒组成。基于PVA-H3PO4电解质的SC_AG@CNT-O储能性能最佳,在66.82 mW cm-2的功率密度下,储能能量密度为41.57 μW h cm-2,比参考活性炭Supra50的储能能量密度分别提高32.2%和74.7%。此外,它表现出显著的循环稳定性,在8000个连续的i-V循环中保持93%的初始电容。这项工作在使用可持续电极材料和更安全的固体凝胶电解质制造高效SCs方面取得了进展,同时强调了电极-电解质相容性在提高储能性能方面的关键作用。除了储能之外,制备的葡萄糖衍生碳/碳纳米管- o杂化电极材料结合了高表面积和导电性,为电催化、电化学传感器和环境修复等其他应用开辟了广阔的前景。
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引用次数: 0
Carbon capture, utilization, and storage: Scientific basis, practical applications, and climate role 碳捕获、利用和封存:科学基础、实际应用和气候作用
IF 7.1 Q1 ENGINEERING, CHEMICAL Pub Date : 2026-01-21 DOI: 10.1016/j.ceja.2026.101049
Diane Mariella Maqui, Angelo Earvin Sy Choi
Carbon Capture Utilization and Storage (CCUS) has gained renewed attention as coal continues to dominate global energy systems despite escalating climate concerns. This review outlines the scientific foundations, integration pathways, and practical viability of CCUS in coal-fired applications, focusing on post-combustion, pre-combustion, and oxyfuel processes. It examines emerging utilization technologies that convert captured carbon into industrial and construction inputs. CO₂ transport behavior depends heavily on pressure, temperature, and impurity content; imbalances in these variables trigger phase transitions among liquid, gas, and supercritical states. The review draws from modeled trajectories by the Intergovernmental Panel on Climate Change (IPCC) and International Energy Agency (IEA), aligning CCUS with national strategies in the United States, China, and India. CCUS enables emission reductions in emission-intensive sectors and lowers carbon intensity in thermal power generation. High costs, regulatory uncertainty, and fragmented policy and infrastructure constrain its large-scale deployment. This study presents a unified modification strategy that integrates durability, photothermal responsiveness, and self-cleaning behavior into a scalable and cost-effective graphite felt substrate. The approach transcends conventional single-property optimization by offering a multifunctional surface capable of sustained adsorption and thermal recovery under direct sunlight, marking a step toward practical and economically viable environmental remediation applications.
尽管气候问题日益严重,但随着煤炭继续主导全球能源系统,碳捕集利用与封存(CCUS)重新受到关注。本文概述了CCUS在燃煤应用中的科学基础、整合途径和实际可行性,重点介绍了燃烧后、燃烧前和含氧燃料过程。它考察了将捕获的碳转化为工业和建筑投入的新兴利用技术。CO₂输运行为在很大程度上取决于压力、温度和杂质含量;这些变量的不平衡触发了液体、气体和超临界状态之间的相变。该报告借鉴了政府间气候变化专门委员会(IPCC)和国际能源署(IEA)的模拟轨迹,使CCUS与美国、中国和印度的国家战略保持一致。CCUS可以减少排放密集型行业的排放,降低火力发电的碳强度。高昂的成本、监管的不确定性以及支离破碎的政策和基础设施限制了其大规模部署。本研究提出了一种统一的改性策略,该策略将耐久性、光热响应性和自清洁行为整合到可扩展且具有成本效益的石墨毡基板中。该方法超越了传统的单一性能优化,提供了一种多功能表面,能够在阳光直射下持续吸附和热回收,标志着向实际和经济可行的环境修复应用迈出了一步。
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引用次数: 0
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