Journal of the Taiwan Institute of Chemical Engineers最新文献_第10页

Combining PC-SAFT equation of state with COSMO-SAC for vapor-liquid equilibrium prediction 结合PC-SAFT状态方程与cosmos - sac进行气液平衡预测

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-12-01 DOI: 10.1016/j.jtice.2025.106550

Chen-Hsing Tseng , Yi-Ru Chen , Shiang-Tai Lin , Chieh-Ming Hsieh

Background

The PC-SAFT equation of state (EOS) has been widely applied for estimating thermodynamic properties, drug solubility, and phase equilibria in mixed systems. Accurate application of PC-SAFT to mixtures requires binary interaction parameters k_ij, which are traditionally fitted to experimental phase equilibrium data.

Methods

This study proposes a novel method to estimate the k_ij parameters by matching the excess Gibbs free energy predicted by PC-SAFT to that calculated from COSMO-SAC under defined conditions. Thus, the required k_ij values can be obtained without relying on experimental data. The approach was validated against vapor–liquid equilibrium data for 275 binary systems involving 93 compounds, including both non-associating and associating molecules.

Significant Findings

The average absolute relative deviation in pressure (AARD-P) and the average absolute deviation in vapor-phase mole fraction (AAD-y) were 4.20%, and 1.48% for non-associating systems, and 7.49% and 3.12% for associating systems, respectively. This level of accuracy is significantly better than that achieved by PC-SAFT without k_ij parameters and is comparable to the performance of COSMO-SAC. Moreover, the proposed method offers distinct advantages over COSMO-SAC alone, particularly under conditions exceeding the critical point of one component. It represents a promising predictive tool for systems lacking experimental phase equilibrium data.

PC-SAFT状态方程（EOS）已被广泛应用于估计混合系统的热力学性质、药物溶解度和相平衡。PC-SAFT对混合物的精确应用需要二元相互作用参数kij，而传统的方法是将其拟合到实验相平衡数据中。方法本研究提出了一种新的方法，通过将PC-SAFT预测的超额吉布斯自由能与COSMO-SAC计算的超额吉布斯自由能在一定条件下进行匹配来估计kij参数。因此，无需依赖实验数据即可获得所需的kij值。该方法对涉及93种化合物的275个二元体系的气液平衡数据进行了验证，包括非缔合分子和缔合分子。非缔合体系压力的平均绝对相对偏差（aad -p）和气相摩尔分数的平均绝对偏差（AAD-y）分别为4.20%和1.48%，缔合体系的平均绝对偏差为7.49%和3.12%。这一精度水平明显优于不带kij参数的PC-SAFT，与cosmos - sac的性能相当。此外，所提出的方法比cosmos - sac单独具有明显的优势，特别是在超过一个组件临界点的条件下。对于缺乏实验相平衡数据的系统，它是一种很有前途的预测工具。

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引用次数: 0

Experimental evidence and performance analysis of carbon cloth composite inserted lead-acid batteries under high-rate cycling 高倍率循环下碳布复合嵌套铅酸电池的实验证据及性能分析

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-11-15 DOI: 10.1016/j.jtice.2025.106517

S.H. Hsieh, T.P. Wu

Background

To enhance the service life of lead-acid batteries (LABs), a lead-carbon cloth composite material (LCF) was developed by combining the advantages of Pb and C to replace Pb plates. This approach was first introduced in the earlier study, Application of Carbon Fibers in Thin-Plate Pure Lead Batteries. This study provides concrete evidence of the Pb-C bond formation process, as documented in JTICE 152 (2023), P105175, using Field Emission Transmission Electron Microscopy (FE-TEM) morphology and highlighting new applications in lead-acid batteries.

Methods

The cross-sections of LCF plates made from activated carbon cloth and chemically oxidized activated carbon cloth were observed at the Pb-carbon fiber interface using FE-TEM. Homemade LABs, both with and without LCF plates, were compared in high-rate cycling tests with commercial batteries.

Significant Findings

The insertion of LCF plates into LABs enhances the charging reaction and supports the electrodes, acting like a capacitor during high-rate operation. In the 12 V 6 Ah LAB with LCF plates, the 550 W discharge time remained consistent over 150 cycles — more than twice as many as that of the battery without LCF — while the battery remained available.

为了提高铅酸电池的使用寿命（实验室），结合铅和碳的优点，开发了一种铅碳布复合材料（LCF）来替代铅板。这种方法最早是在早期的研究《碳纤维在薄板纯铅电池中的应用》中提出的。本研究利用场发射透射电子显微镜（FE-TEM）形态学为Pb-C键形成过程提供了具体证据，如JTICE 152 (2023)， P105175所述，并强调了在铅酸电池中的新应用。方法用FE-TEM观察活性炭布和化学氧化活性炭布制备的LCF板在铅-碳纤维界面的横截面。自制实验室，有和没有LCF板，比较了商用电池的高倍率循环测试。在实验室中插入LCF板增强了充电反应，并支持电极，在高速运行时起到电容器的作用。在使用LCF板的12 V 6 Ah LAB中，550 W的放电时间在150次循环中保持一致-比没有LCF的电池多出两倍多-而电池仍然可用。

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引用次数: 0

Thermodynamic and computational fluid dynamic analysis of a microchannel heat sink device: Use of nanofluids, effect of pin shape and inclusion vortex generators 微通道散热装置的热力学和计算流体动力学分析：纳米流体的使用、针形和内含涡发生器的影响

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-11-17 DOI: 10.1016/j.jtice.2025.106529

A. Santos , L. Silva-Llanca , E. Castillo , A. Gonzalez

Background:

Microchannel designs may enhance the cooling of electronic devices by increasing heat flux, reducing thermal resistance, and promoting uniform temperature distribution. This study analyzes entropy generation and exergy destruction in microchannel heat sinks using computational fluid dynamics, comparing various working fluids and geometries.

Methods:

The working fluids considered include pure water, a water–ethylene glycol mixture (80:20), and a Newtonian nanofluid (

{Al}_{2} O_{3}

/water) with 0.0075 volume fraction. Three geometries, including cylindrical and square pins with and without vortex generators, are analyzed in a Reynolds number range of 200 to 800. The steady-state laminar numerical simulations were performed using ANSYS Fluent.

Significant findings

: The inclusion of vortex generators reduces total entropy generation across all cases. The water–ethylene glycol mixture leads to a reduction of up to 9.52% compared to pure water, making it the most efficient working fluid tested. In contrast, the nanofluid increases entropy generation by up to 3.44%. Higher Reynolds numbers consistently lead to lower entropy generation and exergy destruction. The study also identifies consistent relationships between the entropy generation number and key dimensionless groups such as Reynolds, Nusselt, and Stanton numbers, supporting the development of simplified engineering correlations. These findings provide clear guidance on the trade-offs between fluid selection and geometric design for thermally efficient microchannel cooling systems.

背景：微通道设计可以通过增加热流密度、降低热阻和促进温度均匀分布来增强电子器件的冷却。本研究利用计算流体力学分析了微通道散热器的熵产和火用破坏，比较了各种工质和几何形状。方法：考虑的工作流体包括纯水、水-乙二醇混合物（80:20）和牛顿纳米流体（Al2O3/水），体积分数为0.0075。在雷诺数为200到800的范围内，分析了三种几何形状，包括圆柱形和方形针，有和没有涡旋发生器。利用ANSYS Fluent软件进行了稳态层流数值模拟。重要发现：涡旋发生器的加入减少了所有情况下的总熵生成。与纯水相比，水-乙二醇混合物的效率降低了9.52%，使其成为测试中效率最高的工作液。相比之下，纳米流体使熵产生增加了3.44%。较高的雷诺数始终导致较低的熵产和火能破坏。该研究还确定了熵生成数与关键无量纲群（如Reynolds， Nusselt和Stanton数）之间的一致关系，支持简化工程相关性的发展。这些发现为热效率微通道冷却系统的流体选择和几何设计之间的权衡提供了明确的指导。

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引用次数: 0

Corrosion inhibition effect of coffee skin carbon dots synthesized by hydrothermal method on cold-rolled steel in hydrochloric acid medium: Experimental and theoretical calculation study 水热法制备咖啡皮碳点对冷轧钢在盐酸介质中的缓蚀效果：实验与理论计算研究

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-11-30 DOI: 10.1016/j.jtice.2025.106547

Yuting Liu , Xianghong Li , Yujie Qiang , Guanben Du , Shuduan Deng

Background

In order to solve the problem of steel corrosion and seek a green corrosion inhibitor, the coffee skin carbon dots (CS-CDs) were prepared from agricultural waste coffee skin. The research investigated their corrosion inhibition effect on cold-rolled steel (CRS) immersed in 1.0 M HCl.

Methods

CS-CDs was synthesized by hydrothermal method, and its microstructure and chemical composition were characterized by transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The corrosion inhibition performance of CS-CDs was investigated by weight loss method, electrochemistry, surface characterization and theoretical calculation.

Significant findings

Through weight loss testing at four temperatures ranging from 20 to 50 °C, it was found that at 40 °C, the corrosion inhibition rate of 100 mg L⁻¹ CS-CDs reached a maximum of 93 %. This behaviour conforms to the Langmuir adsorption isotherm. Electrochemical impedance spectroscopy (EIS) revealed that the charge transfer resistance increased from 46.01 Ω·cm² to 375.9 Ω·cm² with rising CS-CDs concentrations. Polarisation curves (PDP) indicated a decrease in current density from 540.63 μA cm^-2 to 77.55 μA cm^-2, confirming CS-CDs as a mixed-type inhibitor with predominant cathodic suppression. Surface characterisation revealed that after CS-CDs addition, the steel plate surface roughness decreased from 178 nm to 31.5 nm, while hydrophobicity increased from 35.05 ^o to 85.16 ^o, indicating strong adsorption of CS-CDs onto CRS. Theoretical calculations demonstrated that CS-CDs adsorb onto the Fe (110) surface via parallel physical and chemical mechanisms. This work demonstrates a promising strategy for developing plant-derived CDs as efficient and eco-friendly corrosion inhibitors.

为了解决钢铁腐蚀问题，寻求绿色缓蚀剂，以农业废弃咖啡皮为原料制备了咖啡皮碳点（CS-CDs）。研究了它们在1.0 M HCl溶液中对冷轧钢的缓蚀效果。方法采用水热法合成scs - cds，利用透射电子显微镜（TEM）、傅里叶红外光谱（FTIR）和x射线光电子能谱（XPS）对其微观结构和化学成分进行表征。采用失重法、电化学、表面表征和理论计算等方法研究了CS-CDs的缓蚀性能。通过在20 ~ 50℃四种温度下的失重试验，发现在40℃时，100 mg L -⁻¹CS-CDs的缓蚀率最高可达93%。这种行为符合Langmuir吸附等温线。电化学阻抗谱（EIS）显示，随着CS-CDs浓度的升高，电荷转移电阻从46.01 Ω·cm2增加到375.9 Ω·cm2。极化曲线（PDP）显示电流密度从540.63 μA cm-2下降到77.55 μA cm-2，证实了CS-CDs是一种以阴极抑制为主的混合型抑制剂。表面表征表明，加入CS-CDs后，钢板表面粗糙度从178 nm降低到31.5 nm，疏水性从35.05 o提高到85.16 o，表明CS-CDs在CRS上有较强的吸附作用。理论计算表明，CS-CDs通过平行的物理和化学机制吸附在Fe（110）表面。这项工作表明，开发植物源性CDs作为高效环保的缓蚀剂是一种很有前途的策略。

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引用次数: 0

Synthesis of the new spirocompounds by Tannic acid as a green catalyst and investigation of their antibacterial properties 以单宁酸为绿色催化剂合成新型螺体化合物及其抗菌性能研究

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-12-24 DOI: 10.1016/j.jtice.2025.106538

Samira Javadi, Davood Habibi

Background

The use of tannic acid as a green catalyst has a long history and dates back many years.

Methods

The synthesis of various spirocompounds was carried out, following the Grobeck-Blackburn-Benheim and Pictet-Spengler reaction methods, through the four-component condensation reaction of sodium cyanide, isatin, 5-aminothiazolium/2-aminobenzothiazole, and aldehydes under solvent-free conditions and in the presence of tannic acid (TA) as a green and strong catalyst, and they were characterized by different methods.

Significant findings

The desired spirocompounds were prepared in a more environmentally friendly manner with higher yields and shorter reaction times compared to traditional methods, and the antibacterial properties of the two spirocompounds were also evaluated using the Chinese Standard Oscillation Antibacterial Test, which showed significant inhibition against Staphylococcus aureus, Escherichia coli, and Staphylococcus aureus.

单宁酸作为绿色催化剂的使用历史悠久，可以追溯到许多年前。方法采用Grobeck-Blackburn-Benheim反应法和Pictet-Spengler反应法，在无溶剂条件下，以单宁酸（TA）为绿色强催化剂，以氰化钠、isatin、5-氨基噻唑/2-氨基苯并噻唑和醛为原料，进行四组分缩合反应，合成了多种螺体化合物，并采用不同的方法进行表征。与传统方法相比，以更环保的方式制备了所需的螺体化合物，产率更高，反应时间更短，并采用中国标准振荡抗菌试验对两种螺体化合物的抗菌性能进行了评价，结果表明，两种螺体化合物对金黄色葡萄球菌、大肠杆菌和金黄色葡萄球菌均有明显的抑制作用。

引用次数: 0

Corrigendum to “Effective retention of inorganic Selenium ions (Se (VI) and Se (IV)) using novel sodalite structures from muscovite; characterization and mechanism” [Journal of the Taiwan Institute of Chemical Engineers 120 (2021)] “使用来自白云母的新型钠云石结构有效保留无机硒离子（Se （VI）和Se (IV)）”的勘误；[台湾化学工程学会学报120 (2021)]

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-11-23 DOI: 10.1016/j.jtice.2025.106530

Soha M. Albukhari , Mohamed Abdel Salam , Mostafa R. Abukhadra

引用次数: 0

Robust Probabilistic Sparse Identification of nonlinear dynamics for industrial anomaly detection 用于工业异常检测的非线性动力学鲁棒概率稀疏识别

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-11-28 DOI: 10.1016/j.jtice.2025.106542

Zixuan Lin , Jiao Wang , Siyue Zhang , Biwen Zhu , Haiquan Yu , Cong Yu , Wei Fan

Background:

Industrial processes often exhibit nonlinear and time-varying behaviors, which makes reliable monitoring essential for safety and efficiency. Traditional statistical methods rely on Gaussian noise and stationary assumptions, leading to poor robustness under disturbances and outliers.

Methods:

To address this issue, a Robust Probabilistic Sparse Identification of Nonlinear Dynamics (RPSINDy) is proposed in this work. It combines sparse regression with probabilistic state-space modeling, introduces a Gaussian–Student’s t mixture distribution to capture heavy-tailed noise, and employs EM with particle filtering for parameter estimation and inference. Three monitoring indices are designed to evaluate abnormal operating conditions and dynamic deviations.

Significant Findings:

Case studies on a three-phase flow facility and a marine diesel engine show that RPSINDy achieves earlier and more accurate fault detection than traditional methods. The results highlight its practicality as a robust and interpretable tool for monitoring complex industrial systems.

背景：工业过程经常表现出非线性和时变行为，这使得可靠的监测对安全和效率至关重要。传统的统计方法依赖于高斯噪声和平稳假设，导致在干扰和异常值下的鲁棒性较差。方法：为了解决这一问题，本文提出了一种鲁棒概率稀疏非线性动力学辨识方法（RPSINDy）。它将稀疏回归与概率状态空间建模相结合，引入高斯-学生t混合分布来捕获重尾噪声，并采用粒子滤波的EM进行参数估计和推理。设计了三个监测指标来评价异常工况和动态偏差。重要发现：对三相流设备和船用柴油机的案例研究表明，RPSINDy比传统方法更早、更准确地实现了故障检测。结果突出了其作为监测复杂工业系统的鲁棒性和可解释性工具的实用性。

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引用次数: 0

Biochar as a guard catalyst for diminishing coking via enhancing gasification of reaction intermediates in steam reforming of biomass derivatives 生物炭作为一种保护催化剂，在生物质衍生物的蒸汽重整中通过提高反应中间体的气化来减少焦化

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-11-08 DOI: 10.1016/j.jtice.2025.106513

Yunyu Guo , Lihua Wang , Xun Hu , Chao Li , Yueyue Song , Wenjian Liu , Yangfan Zhang , Shu Zhang , Lijun Zhang

Background

Volatiles-char interaction is a well-known phenomenon in biomass pyrolysis/gasification, and hence biochar might also facilitate gasification of reaction intermediates in steam reforming of organics.

Methods

Herein, steam reforming of acetic acid, ethanol, or acetone was performed over Ni/Mg-Al with biochar as a top-layer catalyst, aiming to probe influence of biochar on evolution of intermediate products and coking on lower-layer Ni/Mg-Al. The results showed that, regardless of reactants, presence of biochar did promote catalytic activity for steam reforming.

Significant findings

Measurement of intermediates in reforming with in-situ IR exhibited that gasification of intermediates with functionalities like C = C or C-O-C with biochar was enhanced. This diminished formation of precursors of coke on lower-layer Ni/Mg-Al, decreasing coke formation by 22.9 % with acetic acid as a reactant, 11.6 % with ethanol, or 7.0 % with acetone. The coke formed from the dual catalyst system also had higher aromatic degree and higher resistivity towards oxidation. Additionally, deoxygenation and dehydrogenation of reaction intermediates also formed coke of highly aromatic nature on surface of biochar, which changed propensity of intermediate organics towards coking over lower-layer Ni/Mg-Al.

挥发分-炭相互作用是生物质热解/气化过程中一个众所周知的现象，因此生物炭也可能促进有机物蒸汽重整反应中间体的气化。方法以生物炭为顶层催化剂，在Ni/Mg-Al上进行醋酸、乙醇或丙酮的水蒸气重整，探讨生物炭对中间体产物演化和下层Ni/Mg-Al焦化的影响。结果表明，无论反应物如何，生物炭的存在确实促进了蒸汽重整的催化活性。原位红外对重整过程中中间体的测量表明，具有C = C或C- o -C等官能团的中间体与生物炭的气化作用增强。这减少了下层Ni/Mg-Al上焦炭前体的形成，以乙酸为反应物时焦炭形成减少22.9%，以乙醇为11.6%，以丙酮为7.0%。双催化剂体系生成的焦炭具有较高的芳香度和抗氧化性。此外，反应中间体的脱氧脱氢也在生物炭表面形成了高芳香性质的焦炭，改变了中间体有机物在下层Ni/Mg-Al上的结焦倾向。

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引用次数: 0

Molecular engineering of Co ion–imprinted sites on metal–organic frameworks and facile photodeposition for the selective recovery and upcycling of Co(II) 金属-有机骨架上Co离子印迹位点的分子工程及快速光沉积对Co（II）的选择性回收和升级利用

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-11-20 DOI: 10.1016/j.jtice.2025.106527

Xin Liu , Ruixue Hu , Shiran Zhu , Xiangyu Liu , Yu Fang , Yihang Li , Wei Wei

Background

The demand for adsorption technologies that facilitate the recovery and upcycling of the valuable metallic element, Co, has been increasing. The recovery of Co from wastewater using metal–organic frameworks (MOFs), which are promising adsorbents, is considerably limited because of the lack of selective adsorption sites. Furthermore, research on the upcycling of Co remains inadequate.

Methods

Herein, we develop an integrated strategy combining ion imprinting modification and photodeposition for the selective recovery and upcycling of divalent Co ions (Co(II)) using MOF adsorbents.

Significant findings

First, Co ion–imprinted sites are constructed on a typical MOF adsorbent, MIL-125 (labeled CoIP-ML), via molecular engineering using glycylglycine. Compared with the original aminated MIL-125, CoIP-ML exhibits a superior performance, achieving the maximum adsorption capacity (q_m = 218.6 mg/g) and selectivity (selective coefficient k_{Co(II)/Ni(II)} = 3.61) for Co(II) via the chelation of Schiff base groups and adsorption at terminal carboxyl groups. The Co(II) adsorbed on CoIP-ML is upcycled through a facile photodeposition process into Co oxides, which function as a Fenton-like catalyst. The optimal catalyst effectively activates peroxymonosulfate for the removal of chloroquine diphosphate and chlortetracycline hydrochloride, achieving the upcycling of Co(II). This study presents a unique MOF-functionalization paradigm.

对吸附技术的需求越来越大，吸附技术可以促进有价金属元素Co的回收和升级利用。金属有机框架（MOFs）是一种很有前途的吸附剂，但由于缺乏选择性吸附位点，其从废水中回收Co的能力受到很大限制。此外，对Co的升级回收研究还不足。方法采用离子印迹改性和光沉积相结合的方法，利用MOF吸附剂对二价Co离子（Co(II)）进行选择性回收和升级利用。首先，通过甘氨酸分子工程，在典型的MOF吸附剂MIL-125（标记为CoIP-ML）上构建了Co离子印迹位点。与原胺化MIL-125相比，CoIP-ML表现出更优异的吸附性能，通过席夫碱基的螯合和末端羧基的吸附，对Co（II）达到了最大的吸附量（qm = 218.6 mg/g）和选择性系数(kCo（II)/Ni(II) = 3.61）。吸附在CoIP-ML上的Co（II）通过简单的光沉积过程升级为Co氧化物，Co氧化物作为Fenton-like催化剂。优化后的催化剂能有效活化过氧单硫酸根脱除二磷酸氯喹和盐酸氯四环素，实现Co（II）的升级回收。本研究提出了一种独特的mof功能化范式。

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引用次数: 0

A spindle-shaped phosphotungstic acid loaded amidoximated natural bamboo strip for extracting uranium 载磷钨酸的纺锤形偕胺肟化天然竹条提铀

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers

Pub Date : 2026-04-01 Epub Date: 2025-11-19 DOI: 10.1016/j.jtice.2025.106520

Yan Feng, Yuxi Li, Shengxuan Gao, Yue Tao, Ying Zhang

Background

Inorganic materials with high O/N content for Uranium Extraction from Seawater (UES) show fast-adsorption rate, but practical applications are limited by their easy dispersion, difficult recovery, and poor selectivity. Therefore, inspired by the macroscopic large-area molding, antibacterial properties, and hierarchical porous microstructure of bamboo strips (BS), a nanoscale spindle-shaped phosphotungstic acid (PTA) loaded amidoximated BS (AOBS) as the inorganic/organic composite material with high O/N content is designed and applied to extracting uranium.

Methods

Under the effects of the hydrogen bonding crosslinking, the protonation process of -NH₂, the physical limitations of PEG molecular chains, and others, a nanoscale spindle-shaped PTA loaded fibrous AOBS (PW₁₂AOBS) is successfully synthesized by chemical cross-linking and hydrothermal methods.

Significant Findings

PW₁₂AOBS has the super-hydrophilic surface and ultra-fast infiltration rate, so that it exhibits an excellent antibacterial performance and a super-fast adsorption rate. When the contact time is 5 mins, the adsorption capacity is 195.6 mg·g⁻¹, and a removal rate of uranium is 78.2 %. The highest removal rate of uranium is 82.6 %, and the adsorption capacity reaches 343.6 μg·g⁻¹ in simulated seawater. The terminal OH/-COOH and bridging W=O from PW₁₂AOBS synchronously act as the active sites for extracting uranium.

高O/N含量的有机材料对海水提铀的吸附速度快，但易分散、难回收、选择性差，限制了其实际应用。因此，受竹条（BS）宏观大面积成型、抗菌性能和分层多孔结构的启发，设计了一种纳米级纺锤形磷钨酸（PTA）负载偕胺肟化BS （AOBS）作为高O/N含量的无机/有机复合材料，并将其应用于铀提取。方法在氢键交联、-NH2质子化过程、PEG分子链物理限制等因素的影响下，采用化学交联和水热法成功合成了纳米级纺锤形PTA负载的纤维AOBS （PW12AOBS）。spw12aobs具有超亲水性表面和超快的渗透速率，从而表现出优异的抗菌性能和超快的吸附速率。当接触时间为5 min时，铀的吸附量为195.6 mg·g−1，铀的去除率为78.2%。模拟海水中铀的最高去除率为82.6%，吸附量达343.6 μg·g−1。PW12AOBS的末端OH/-COOH和桥接W=O同时作为提取铀的活性位点。

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引用次数: 0