Journal of the Taiwan Institute of Chemical Engineers最新文献_第4页

Generalized IMC-PD decoupled dual-loop control of delay-dominated chemical systems using stability-constrained crayfish optimization 基于稳定约束小龙虾优化的广义IMC-PD解耦双环控制

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-06 DOI: 10.1016/j.jtice.2025.106563

Obaid Siddiqui , G. Lloyds Raja , Sudipta Chakraborty

Background:

Chemical processes with delay are challenging to control due to the inherent phase lag, sluggish response, and stability issues. These challenges are further amplified when the process exhibits unstable or integrating dynamics, such as in the case of continuously stirred tank reactors (CSTRs). Conventional control techniques often struggle to achieve satisfactory performance and robust stability in such scenarios.

Methods:

To address these issues, this work proposes a generalized Internal Model Control (IMC)–based Proportional Derivative (PD) decoupled dual-loop control framework. The inner PD controller is designed using Routh–Hurwitz stability criteria to ensure closed-loop stability. The IMC filter parameter and PD controller gains are jointly fine-tuned through a stability-constrained Crayfish Optimization Algorithm, which is employed for the first time in this context. The optimization objective is to minimize the Integral Square Error (ISE), ensuring both performance and robustness.

Significant Findings:

The proposed control structure is validated using several benchmark chemical process models from the literature, demonstrating significant improvements in performance and robustness over existing methods. Furthermore, experimental validation is carried out to assess the practical applicability and effectiveness of the design in real-world conditions.

背景：具有延迟的化学过程由于其固有的相位滞后、响应迟缓和稳定性问题而难以控制。当过程表现出不稳定或集成动力学时，例如在连续搅拌槽式反应器（cstr）的情况下，这些挑战进一步放大。在这种情况下，传统的控制技术往往难以达到令人满意的性能和鲁棒稳定性。方法：为了解决这些问题，本工作提出了一个基于广义内模控制（IMC）的比例导数（PD）解耦双环控制框架。内部PD控制器采用Routh-Hurwitz稳定性准则设计，以确保闭环稳定性。通过稳定性约束的小龙虾优化算法对IMC滤波器参数和PD控制器增益进行联合微调，该算法在本文中首次被采用。优化目标是最小化积分平方误差（ISE），同时保证性能和鲁棒性。重要发现：本文提出的控制结构使用文献中的几个基准化学过程模型进行了验证，与现有方法相比，在性能和鲁棒性方面有了显著改进。此外，还进行了实验验证，以评估设计在实际条件下的实用性和有效性。

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引用次数: 0

Effect of Ce doping on the magnetic properties of LaFeO3 nanofibers Ce掺杂对LaFeO3纳米纤维磁性能的影响

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-03 DOI: 10.1016/j.jtice.2025.106615

Hanqiong Luo , Chao Song , Jiayue Xu, Yuhao Gan, Jiaqi Yu, Yin Wang, Yajiao Song, Jinghai Liu, Quanli Hu

Background

LaFeO₃ has unique physicochemical properties and exhibits great application potential in fields such as catalysis, sensors, energy conversion and storage, as well as magnetic storage. LaFeO₃ possesses fascinating magnetic characteristics. Ce doping in LaFeO₃ can bring about changes in the physicochemical properties.

Method

A simple electrospinning and annealing way were used to fabricate Ce-doped LaFeO₃ nanofibers, such as La_{0.9Ce_0.1}FeO₃, La_0.8Ce_0.2FeO₃, and La_0.7Ce_0.3FeO₃. The perovskite orthorhombic structures of the fabricated samples were revealed by Rietveld refined XRD patterns. The magnetic characteristics of these fabricated nanofibers were clarified by a Quantum Design SQUID vibrating sample magnetometer.

Significant finding

Magnetic properties indicated that LaFeO₃ nanofibers featured the coexistence of weak ferromagnetism and antiferromagnetism. An appropriate amount of Ce doping can notably enhance the ferromagnetism, with the magnetization increasing significantly. The internal mechanism through which Ce doping influenced the magnetism of LaFeO₃ nanofibers was thoroughly explored, providing a crucial theoretical basis and experimental reference for the optimal design and extensive application of LaFeO₃-based magnetic materials. These findings are expected to inspire the advancement of lanthanum ferrite nanomaterials for applications in storage devices and sensors.

lafeo3具有独特的物理化学性质，在催化、传感器、能量转换与存储、磁存储等领域显示出巨大的应用潜力。LaFeO3具有迷人的磁性。在LaFeO3中掺杂Ce会引起其物理化学性质的变化。方法采用简单的静电纺丝和退火法制备La0.9Ce0.1FeO3、La0.8Ce0.2FeO3和La0.7Ce0.3FeO3掺杂的LaFeO3纳米纤维。用Rietveld细化XRD图分析了制备样品的钙钛矿正交结构。利用量子设计SQUID振动样品磁强计对制备的纳米纤维的磁性特性进行了研究。磁性能表明LaFeO3纳米纤维具有弱铁磁性和反铁磁性共存的特点。适量的Ce掺杂能显著增强材料的铁磁性，磁化强度显著提高。深入探讨了Ce掺杂影响LaFeO3纳米纤维磁性的内在机理，为LaFeO3基磁性材料的优化设计和广泛应用提供了重要的理论依据和实验参考。这些发现有望激发铁酸镧纳米材料在存储设备和传感器中的应用。

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引用次数: 0

Conversion of waste biomass to highly porous biochar for tricresyl phosphate removal: Adsorption performance study and exhausted adsorbent re-utilization 废生物质转化为高孔生物炭去除磷酸三甲酰基：吸附性能研究和废吸附剂再利用

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-03 DOI: 10.1016/j.jtice.2025.106616

Yi Xie , Jiali Yu , Mingjin Cai , Lefang Chen , Yongkui Zhang , Yabo Wang , Bi Chen

Background

Organophosphorus esters (OPEs) are hazardous pollutants frequently detected in aquatic environments at concentrations ranging from ng L^‒1 to μg L^‒1. It has been widely detected in samples from wastewater treatment plants and in surface waters of lakes and rivers, exhibiting reproductive toxicity, neurotoxicity, cardiotoxicity, and hepatotoxicity to organisms. Adsorption is regarded as a promising technology to treat low concentration pollutants in water, which requires highly efficient and cost-effective adsorbents. Adsorbents prepared from waste biomass are attracting increasing attention from researchers.

Methods

Waste biomass of baijiu distillers’ grains (BDGs) was applied as the precursor to prepare biochar in the presence of potassium salt as activator. The biochar materials were evaluated as adsorbents for tricresyl phosphate (TCP) removal from water. Both batch and continuous adsorption performances were investigated.

Significant findings

Superior adsorption performances towards TCP were achieved, including a large adsorption capacity (653.6 mg g^‒1), good adaptability to solution pH and background water quality, and 5% and 95% breakthrough time of 3.67 h and 17.53 h in column adsorption process. The exhausted adsorbent could be converted to metal phosphide loaded carbon catalyst for advanced oxidation reaction, providing another choice for waste adsorbent disposal and re-utilization of P resource in OPEs.

有机磷酯（OPEs）是水生环境中经常检测到的有害污染物，浓度从ng L-1到μg L-1不等。它已在污水处理厂和湖泊、河流的地表水样本中广泛检测到，对生物体表现出生殖毒性、神经毒性、心脏毒性和肝毒性。吸附是一种很有前途的处理水中低浓度污染物的技术，它需要高效、经济的吸附剂。利用废弃生物质制备吸附剂越来越受到研究人员的关注。方法以白酒糟废生物质为前驱体，以钾盐为活化剂制备生物炭。研究了生物炭材料作为吸附水中磷酸三甲酰基（TCP）的性能。考察了间歇吸附和连续吸附性能。结果表明：该工艺对TCP具有良好的吸附性能，吸附量大（653.6 mg g-1），对溶液pH和本底水质具有良好的适应性，柱式吸附过程中5%和95%的突破时间分别为3.67 h和17.53 h。废吸附剂可转化为负载金属磷化物的碳催化剂进行深度氧化反应，为OPEs废吸附剂的处理和P资源的再利用提供了另一种选择。

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引用次数: 0

Y2O3-doped ZnO-C-N nanorods as effective catalysts for oxygen evolution reaction in anion exchange membrane water electrolyzers y2o3掺杂ZnO-C-N纳米棒作为阴离子交换膜水电解槽析氧反应的有效催化剂

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-03 DOI: 10.1016/j.jtice.2025.106600

Suganthi Nachimuthu , S. Thangavel , Yong-Song Chen , Karthik Kannan

Background

This study examines the vertically aligned Y₂O₃-doped ZnO-C-N nanorods with a nickel foam electrode as the anode for the oxygen evolution reaction (OER) in anion exchange membrane water electrolyzers (AEMWEs). Y₂O₃-doped ZnO-C-N nanorods have not been used for the water electrolysis application.

Methods

The Y₂O₃-doped ZnO-C-N nanomaterials were synthesized using a sol-gel method. Subsequently, the electrode materials were fabricated via the slurry coating technique for AEMWEs applications.

Significant findings

Through various characterization techniques, the Y₂O₃-doped ZnO-C-N nanorods with the nickel foam electrode demonstrated superior OER activity compared to the ZnO-C-N nanoflower with the same electrode, exhibiting a higher current density. SEM analysis confirms the nanoflower and nanorod structures of ZnO-C-N and Y₂O₃-doped ZnO-C-N, respectively. XRD analysis verified the presence of a hexagonal wurtzite structure and a cubic structure of ZnO and Y₂O₃, respectively, in all synthesized samples. Additionally, an investigation into the effects of Y₂O₃ impurities in ZnO-C-N on electrochemical properties revealed their influence on OER performance with lower overpotential (380 mV at 10 mA cm^-2) and Tafel slope of 94.35 mV/dec. The enhanced electrochemical performance can be attributed to the vertically aligned nanorod microstructure, which facilitates electron transport and ion diffusion during repeated charge/discharge cycles. This study underscores the importance of hydrogen generation and highlights the role of AEMs utilizing non-noble metal catalysts at reduced costs.

本研究以泡沫镍电极为阳极，在阴离子交换膜水电解槽（AEMWEs）中研究了垂直排列的y2o3掺杂ZnO-C-N纳米棒的析氧反应（OER）。掺杂y2o3的ZnO-C-N纳米棒尚未用于水电解。方法采用溶胶-凝胶法制备Y₂O₃掺杂ZnO-C-N纳米材料。随后，通过浆液涂层技术制备了用于AEMWEs的电极材料。通过各种表征技术，与具有相同电极的ZnO-C-N纳米花相比，带有镍泡沫电极的掺杂y2o3的ZnO-C-N纳米棒表现出更好的OER活性，表现出更高的电流密度。SEM分析证实了ZnO-C-N和y2o3掺杂ZnO-C-N的纳米花和纳米棒结构。XRD分析证实，所有合成样品中ZnO和Y2O3分别存在六方纤锌矿结构和立方结构。此外，研究了ZnO-C-N中Y2O3杂质对电化学性能的影响，发现其对过电位（10 mA cm-2时380 mV）和Tafel斜率（94.35 mV/dec）较低的OER性能有影响。垂直排列的纳米棒结构有助于在重复充放电循环中促进电子传递和离子扩散，从而增强了电化学性能。这项研究强调了制氢的重要性，并强调了以较低成本利用非贵金属催化剂的AEMs的作用。

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引用次数: 0

Co-silanization engineering to construct molecular diffusion barrier for copper metallization on silicon 共硅化工程在硅上构建铜金属化分子扩散屏障

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-03 DOI: 10.1016/j.jtice.2025.106614

Tzu-Yu Chu , Chi-Chien Chang , Chun-Jen Huang , Zhen-Yi Wu , Ming-Tzer Lin , Chih-Ming Chen

Background

Diffusion barrier is important in the development of integrated-circuit (IC) technology because it is essential to maintain the electrical and structural integrity of the Cu/SiO₂/Si heterojunctions. With the advancement of ultrafine-pitch IC layouts, the thickness of diffusion barrier must downscale to few atomic layers which is a critical reliability issue for film coverage and continuity. Due to molecular self-assembling ability, organosilanes are promising candidates to construct the atomic-level diffusion barrier. However, uncontrolled self-assembling ability usually results in molecular self-polymerization, posing big challenges to the formation of a well-organized network structure.

Methods

In this study, co-silanization technology based on two organosilanes are proposed to overcome the uncontrolled molecular assembling problems. The co-silanized molecular nanolayer is constructed at the Cu/SiO₂ interface by interstitially filling the skinny 3-aminopropyltrimethoxysilane (APTMS) molecule into the gaps between stereoscopically bulky molecule like triphenylsilanol (TPS) or trimethoxyphenylsilane (TMPS).

Significant Findings

The co-silanized TPS@APTMS nanolayer exhibits better barrier efficacy against the Cu diffusion in terms of the suppression of Cu silicide formation as compared to the mono-silanized APTMS nanolayer. The better diffusion barrier efficacy is attributed to the strong steric hindrance effect of TPS molecule which assists the APTMS molecule to co-assemble into a well-oriented and organized network structure.

扩散势垒对于保持Cu/SiO2/Si异质结的电气和结构完整性至关重要，是集成电路技术发展的重要组成部分。随着超细间距集成电路布局的发展，扩散势垒的厚度必须缩小到几个原子层，这是保证薄膜覆盖和连续性的关键问题。有机硅烷具有分子自组装能力，是构建原子级扩散屏障的理想材料。然而，不受控制的自组装能力通常会导致分子自聚合，这对形成组织良好的网络结构提出了很大的挑战。方法本研究提出了基于两种有机硅烷的共硅化技术，以克服不受控制的分子组装问题。通过将3-氨基丙基三甲氧基硅烷（APTMS）分子填充到三苯基硅醇（TPS）或三甲氧基苯基硅烷（TMPS）等立体体积较大的分子间隙中，在Cu/SiO2界面上构建共硅化分子纳米层。与单硅化APTMS纳米层相比，共硅化TPS@APTMS纳米层在抑制硅化铜形成方面表现出更好的阻挡Cu扩散的效果。较好的扩散屏障效能是由于TPS分子具有较强的位阻效应，有助于APTMS分子共组装成取向良好、组织有序的网络结构。

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引用次数: 0

Linear and nonlinear Marangoni stability of a thin film falling down the inside or the outside of a vertical cylinder with slip 薄膜在带滑移的垂直圆柱体内外跌落时的线性和非线性马兰戈尼稳定性

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-02 DOI: 10.1016/j.jtice.2025.106603

L.A. Dávalos-Orozco

Background:

Research on thin liquid films has been of interest since many years ago due to their impact on applications of coating and cooling of walls. It is of interest to find passive ways to modify the flow stability. An important way to change the stability is by means of the chemical treatment of the substrate or else by means of very small topography (roughness) of the substrate. Both have the ability to produce a mean slip at the wall–liquid interface.

Methods:

The small wavenumber and large radius of the cylinder approximation is used to derive a nonlinear evolution equation that describes the free surface deformations of the liquid film falling down a vertical cylinder. This equation is linearized and its linear stability is investigated using normal modes including azimuthal perturbations. The nonlinear free surface deformations are investigated numerically by means of a nonlinear normal modes expansion method.

Significant Findings:

The linear and nonlinear Marangoni instability of a liquid film falling down, inside or outside, a vertical cylinder in the presence of slip at the wall–liquid interface is investigated. It is found that the throttling effect (necking) in the presence of slip is able to change the stability results found in previous papers on films falling down flat inclined walls. A nonlinear evolution of the free surface deformation is derived under the small wavenumber and large radius of the cylinder. The curves of linear growth rate, maximum growth rate and critical Marangoni number are calculated including the azimuthal modes of instability. It is found that from the point of view of the linear growth rate the flow destabilizes with slip in a wavenumber range

k

< k_{+}

. However, slip stabilizes for larger wavenumbers

k

> k_{+}

up to the critical (cutoff) wavenumber. From the point of view of the maximum growth rate, it is found that for flow outside the cylinder slip cannot stabilize the flow, in agreement with results derived for a vertical wall in previous papers. However, due to the throttling effect (necking) slip is able to stabilize the flow inside the cylinder up to a certain Reynolds number, in contrast to previous results for a vertical wall. Explicit formulas were derived for the intersections where slip may change its stability properties. All this findings are also corroborated with nonlinear numerical results of the evolution equation.

背景：由于液体薄膜对墙体涂层和冷却的影响，其研究多年来一直受到人们的关注。寻找被动的改变流动稳定性的方法是一个有意义的问题。改变稳定性的一个重要方法是通过对基材进行化学处理，或者通过基材非常小的地形（粗糙度）。两者都有能力在壁液界面产生平均滑移。方法：利用圆柱近似的小波数和大半径，推导出描述液膜沿垂直圆柱下落时的自由表面变形的非线性演化方程。对该方程进行了线性化处理，并利用包含方位扰动的正态模态研究了其线性稳定性。采用非线性正态模态展开法对非线性自由曲面变形进行了数值研究。重要发现：研究了液膜在垂直圆柱体内部或外部存在滑移时的线性和非线性马兰戈尼不稳定性。发现滑移存在时的节流效应（颈缩）能够改变先前关于薄膜从平坦倾斜壁上跌落的稳定性结果。导出了在圆柱小波数和大半径条件下自由表面变形的非线性演化规律。计算了含失稳方位角模态的线性增长率曲线、最大增长率曲线和临界Marangoni数曲线。从线性增长率的角度来看，流动在k <；k+波数范围内随滑移失稳。然而，滑移稳定较大的波数k >；k+直到临界（截止）波数。从最大增长速率的角度出发，发现对于圆柱外流动，滑移不能使流动稳定，这与前人关于垂直壁面的结果一致。然而，由于节流效应（颈缩），滑移能够将气缸内的流动稳定到一定的雷诺数，这与之前垂直壁面的结果相反。推导了滑移可能改变其稳定性的交叉口的显式公式。所有这些发现也得到了演化方程非线性数值结果的证实。

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引用次数: 0

Hybridization of nanofiltration and photocatalysis via functionalized graphene quantum dot-blended membranes for the degradation and removal of amoxicillin 功能化石墨烯量子点混合膜的纳滤和光催化混合降解和去除阿莫西林

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-02 DOI: 10.1016/j.jtice.2025.106594

D S Divyadharshini , S. Aparna , Nitish Kumar , G. Arthanareeswaran , R.V. Mangalaraja

Background

Antibiotic contaminants in wastewater have emerged as a critical environmental concern due to their persistence and ability to promote antimicrobial resistance in natural microbial communities. Among advanced treatment strategies, photocatalytic degradation offers a solution by breaking them into harmless byproducts, though challenges like poor stability and catalyst recovery remain

Methods

This study explores the UV-driven photocatalytic degradation of amoxicillin using polyethersulfone (PES) membranes blended with N,S-doped graphene quantum dots (N,S-GQDs) prepared via phase inversion. The membranes were characterized by FTIR, SEM, XRD, AFM, and tensile strength analysis and photocatalytic performance was further evaluated to assess their degradation efficiency.

Significant Findings

The quantum dots incorporated membrane exhibited a reduced water contact angle of 47.7°, indicating enhanced hydrophilicity and water flux. DRS analysis revealed that incorporating N,S-GQDs effectively reduce the bandgap and enhanced its overall optical activity. The superior performance of N,S-GQDs is attributed to their structural properties, which facilitate efficient interaction between the photocatalyst and pollutants. Amoxicillin degradation was systematically evaluated under varying pH [3–11], catalyst loading, and cycle numbers, with maximum efficiency achieved at pH 11. The hybrid membrane showed a flux recovery ratio (FRR) of 78% after AMX treatment, confirming its enhanced antifouling capability compared to pristine PES.

废水中的抗生素污染物由于其持久性和促进天然微生物群落抗菌素耐药性的能力而成为一个关键的环境问题。在先进的处理策略中，光催化降解提供了一种解决方案，即将其分解为无害的副产物，但仍然存在稳定性差和催化剂回收等挑战。方法：本研究利用相转化制备的掺N， s掺杂石墨烯量子点（N,S-GQDs）的聚醚砜（PES）膜，探讨了紫外驱动的阿莫西林光催化降解。通过FTIR、SEM、XRD、AFM、拉伸强度分析等手段对膜进行了表征，并对膜的光催化性能进行了评价。结果表明：量子点掺入膜后的水接触角减小了47.7°，亲水性和水通量增强。DRS分析表明，加入N，S-GQDs可以有效减小带隙，提高其整体光学活性。N，S-GQDs具有优异的性能，其结构特性有利于光催化剂与污染物之间的有效相互作用。在不同的pH[3-11]、催化剂负载和循环次数下，系统地评估了阿莫西林的降解，在pH 11时达到了最高效率。经AMX处理后，杂种膜的通量回收率（FRR）为78%，与原始PES相比，其防污能力有所增强。

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引用次数: 0

Transition metal, rare earth and nonmetal Si modification to engineer efficient and durable Nb2O5-Fe2O3-MOx mixed oxides for catalytic combustion toluene and chlorobenzene 过渡金属、稀土和非金属Si改性，设计高效耐用的Nb2O5-Fe2O3-MOx混合氧化物，用于催化燃烧甲苯和氯苯

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-01 DOI: 10.1016/j.jtice.2025.106612

Jiang Liu , Min Zhang , Juan Shi , Hongcheng Shan , Hanyun Liu , Linjun Shao , Shufeng Zuo , Peng Yang

Background

: Volatile organic compounds (VOCs) such as toluene and chlorobenzene pose serious environmental and health risks. Nb-Fe-based catalysts represent an environmentally friendly alternative to conventional materials due to their low toxicity, natural abundance, and exceptional resistance to chlorine and sulfur poisoning. These non-precious metal catalysts exhibit tunable redox properties and strong potential for sustainable VOCs combustion.

Methods

: A series of Nb₂O₅-Fe₂O₃−MO_x (M=multiple metals or Si) catalysts with uniform molar ratio (Nb/Fe/M = 1/2/1) were synthesized by sol-gel method. Their performance was evaluated in the simultaneous catalytic combustion of a toluene/chlorobenzene mixture (500 ppmv each). The physicochemical properties of catalysts were systematically characterized to correlate structure with activity.

Significant Findings

: The NbFeCe catalyst achieved 86 % chlorobenzene conversion and complete toluene mineralization at 300 °C and GHSV=15,000 h^-1, with high CO₂ selectivity (85 %) and excellent 20-hour stability. The interface between FeNbO₄ and CeO₂ promoted oxygen vacancy formation, enhanced oxygen mobility and facilitated redox cycling, underpinning its superior activity. It demonstrates great potential as an efficient and environmentally benign catalyst for complex VOCs purification.

背景：甲苯和氯苯等挥发性有机化合物（VOCs）构成严重的环境和健康风险。铌铁基催化剂因其低毒性、天然丰度和对氯和硫中毒的优异抗性而成为传统材料的环保替代品。这些非贵金属催化剂具有可调节的氧化还原性能，具有很强的可持续燃烧VOCs的潜力。方法：采用溶胶-凝胶法制备了摩尔比均匀（Nb/Fe/M = 1/2/1）的Nb2O5-Fe2O3−MOx （M=多种金属或Si）催化剂。在甲苯/氯苯混合物（各500 ppmv）的同时催化燃烧中评估了它们的性能。对催化剂的理化性质进行了系统表征，以确定催化剂的结构与活性之间的关系。重要发现：NbFeCe催化剂在300°C和GHSV=15,000 h-1条件下实现了86%的氯苯转化率和完全的甲苯矿化，具有高的CO2选择性（85%）和出色的20小时稳定性。FeNbO4与CeO2之间的界面促进了氧空位的形成，增强了氧的迁移率，促进了氧化还原循环，从而支撑了其优越的活性。它作为一种高效、环保的复杂挥发性有机化合物净化催化剂具有巨大的潜力。

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引用次数: 0

Enhancing carbon transfer and biomass of Chlorella sorokiniana SU1 using metal-organic framework MIL-100(Fe) 金属-有机骨架MIL-100（Fe）增强小球藻SU1的碳转移和生物量

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-01-01 DOI: 10.1016/j.jtice.2025.106610

Wen-Hui Cheow , Chen-Chieh Liao , Chia-Wen Wu , Yun-Shiuan Yeh , Jo-Shu Chang , I-Son Ng

Background

Gas–liquid transfer of inorganic carbon (Ci) often limits the efficiency of CO₂ capture and utilization in microalgal photobioreactors, particularly under sub-saturating CO₂ conditions. Enhancing interfacial carbon availability without increasing system complexity remains a major challenge for achieving high-rate and scalable phototrophic CO₂ bioconversion.

Methods

Here, we propose a process-integrated strategy employing a metal–organic framework (MOF), MIL-100(Fe), as a dispersed, transient additive to enhance Ci availability during Chlorella sorokiniana cultivation. Four algal strains were evaluated to assess strain-dependent responses. The effects of CO₂ concentration, aeration rate, and MIL-100(Fe) dosage were systematically investigated under continuous CO₂ sparging.

Significant findings

Among the tested strains, SU1 exhibited the strongest response, achieving up to a 37 % increase in biomass productivity under optimal conditions (50 ppm MIL-100(Fe), 0.4 % CO₂, and 150 mL min⁻¹ aeration). MIL-100(Fe) functioned as a solid-phase inorganic carbon reservoir, modulating Ci availability and providing trace iron via controlled framework dissolution, thereby enhancing carbon assimilation and reducing residual dissolved inorganic carbon (DIC) without perturbing bulk pH. Scale-up to a 1.0 L photobioreactor yielded a reproducible ∼12 % biomass enhancement without reactor modification. Overall, MOF-assisted Ci buffering represents a low-complexity, materials-based strategy for alleviating carbon transfer limitations in microalgal cultivation and advancing material-enabled CO₂ utilization.

无机碳（Ci）的气液转移通常限制了微藻光生物反应器中CO 2的捕获和利用效率，特别是在CO 2亚饱和条件下。在不增加系统复杂性的情况下提高界面碳利用率仍然是实现高速率和可扩展的光养CO 2生物转化的主要挑战。方法采用金属有机骨架（MOF） MIL-100（Fe）作为分散的瞬态添加剂，提高小球藻培养过程中Ci的利用率。评估了四种藻类菌株，以评估菌株依赖的反应。系统研究了连续CO₂曝气条件下CO₂浓度、曝气速率和MIL-100（Fe）投加量的影响。在测试的菌株中，SU1表现出最强的反应，在最佳条件下（50 ppm MIL-100(Fe)， 0.4% CO₂和150 mL min⁻¹曝气），生物量生产力提高了37%。MIL-100（Fe）作为固相无机碳储层，调节Ci有效性，并通过受控框架溶解提供微量铁，从而增强碳同化和减少残余溶解无机碳（DIC），而不干扰体ph。放大到1.0 L光生物反应器，无需反应器改造，生物质可再生提高约12%。总的来说，mof辅助的Ci缓冲是一种低复杂性、基于材料的策略，可以缓解微藻培养中的碳转移限制，并促进材料驱动的CO₂利用。

{"title":"Enhancing carbon transfer and biomass of Chlorella sorokiniana SU1 using metal-organic framework MIL-100(Fe)","authors":"Wen-Hui Cheow , Chen-Chieh Liao , Chia-Wen Wu , Yun-Shiuan Yeh , Jo-Shu Chang , I-Son Ng","doi":"10.1016/j.jtice.2025.106610","DOIUrl":"10.1016/j.jtice.2025.106610","url":null,"abstract":"<div><h3>Background</h3><div>Gas–liquid transfer of inorganic carbon (Ci) often limits the efficiency of CO₂ capture and utilization in microalgal photobioreactors, particularly under sub-saturating CO₂ conditions. Enhancing interfacial carbon availability without increasing system complexity remains a major challenge for achieving high-rate and scalable phototrophic CO₂ bioconversion.</div></div><div><h3>Methods</h3><div>Here, we propose a process-integrated strategy employing a metal–organic framework (MOF), MIL-100(Fe), as a dispersed, transient additive to enhance Ci availability during <em>Chlorella sorokiniana</em> cultivation. Four algal strains were evaluated to assess strain-dependent responses. The effects of CO₂ concentration, aeration rate, and MIL-100(Fe) dosage were systematically investigated under continuous CO₂ sparging.</div></div><div><h3>Significant findings</h3><div>Among the tested strains, SU1 exhibited the strongest response, achieving up to a 37 % increase in biomass productivity under optimal conditions (50 ppm MIL-100(Fe), 0.4 % CO₂, and 150 mL min⁻¹ aeration). MIL-100(Fe) functioned as a solid-phase inorganic carbon reservoir, modulating Ci availability and providing trace iron via controlled framework dissolution, thereby enhancing carbon assimilation and reducing residual dissolved inorganic carbon (DIC) without perturbing bulk pH. Scale-up to a 1.0 L photobioreactor yielded a reproducible ∼12 % biomass enhancement without reactor modification. Overall, MOF-assisted Ci buffering represents a low-complexity, materials-based strategy for alleviating carbon transfer limitations in microalgal cultivation and advancing material-enabled CO₂ utilization.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106610"},"PeriodicalIF":6.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145870781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A photo-driven iodate–iron synergistic advanced oxidation process for efficient Orange II degradation in water treatment 光驱动碘-铁协同深度氧化工艺在水处理中的高效降解

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2025-12-31 DOI: 10.1016/j.jtice.2025.106604

Jianing Shi , Siru Huang , Xunfa Yu , Wanying Zhai , Guochao Xie , Li Guo , Tiancui Li

Background

Azo dyes such as Orange II are highly toxic, structurally stable, and resistant to biodegradation, posing serious risks to aquatic environments. Conventional treatment methods are often ineffective, necessitating the development of efficient and sustainable degradation strategies.

Methods

This study investigated a Fe²⁺/IO₃⁻/UV system for Orange II degradation. Key operational factors were systematically examined, while radical quenching and EPR were applied to identify reactive species. LC–MS and frontier molecular orbital analysis were used to propose degradation pathways, and ECOSAR assessed the toxicity of intermediates. Process optimization was conducted using response surface methodology.

Results

Hydroxyl radicals, superoxide radicals, and iodine-centered radicals were identified as the dominant oxidants. Under optimal conditions (pH 11, Fe²⁺ = 0.05 mM, IO₃⁻ = 3 mM, UV = 32 W), Orange II removal reached 99.26 %, surpassing the conventional Fenton-like process. Simulated natural water tests achieved >90 % removal, with low energy consumption and reduced toxicity of byproducts, confirming both environmental compatibility and economic feasibility.

偶氮染料如橙ⅱ具有剧毒、结构稳定、抗生物降解等特点，对水生环境构成严重威胁。传统的处理方法往往是无效的，因此必须制定有效和可持续的降解战略。方法研究了Fe 2 + /IO₃⁻/UV体系对橙II的降解作用。系统考察了关键操作因素，并应用自由基猝灭和EPR技术鉴定了反应物质。采用LC-MS和前沿分子轨道分析提出了降解途径，ECOSAR评估了中间体的毒性。采用响应面法进行工艺优化。结果羟基自由基、超氧自由基和碘中心自由基是主要的氧化剂。在最佳条件下（pH 11, Fe 2⁺= 0.05 mM, IO₃⁻= 3 mM, UV = 32 W）， Orange II的去除率达到99.26%，超过了传统的类芬顿法。模拟天然水试验达到了90%的去除率，能耗低，副产品毒性降低，证实了环境兼容性和经济可行性。

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引用次数: 0