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SSRN 2025年

作者： Song, Yongzheng Wang, Peng Jiang, Haiyan Li, Kaikai Zeng, Shaojuan Zhang, Xiangping Beijing Key Laboratory of Solid State Battery and Energy Storage Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China College of Chemical and Engineering University of Chinese Academy of Sciences Beijing100049 China College of Chemical Engineering and Environment China University of Petroleum Beijing102249 China

In this work, continuous carbon dioxide (CO2) absorption-desorption experiments under simulated flue gas conditions and techno-economic analysis of CO2 capture using a novel water-lean ionic liquid (IL) absorbent were comprehensively combined to evaluate the feasibility of industrial applications. Thermodynamic and kinetic properties of the absorbent such as heat capacity, thermal conductivity, and absorption rate were explored and a reliable thermodynamic model was conducted. Meanwhile, continuous absorption-desorption experiments were carried out using a laboratory-scale continuous flow system (LCFS) to optimize operational parameters and assess the absorbent stability. Under optimal conditions, the CO2 concentration in the purified gas can be reduced to 0.70%, and the capture efficiency was as high as 95.76%. After 650 hours of continuous experiments under simulated flue gas, the IL concentration in the absorbent remained essentially unchanged, showing excellent stability. Based on above experimental results, a process model was developed in ASPEN Plus and validated. The validated model was further scaled up to a commercial scale and a techno-economic analysis was performed to evaluate the energy consumption and cost. The regeneration energy consumption (Qreg) for the absorbent was 1.31 GJ tCO2-1, and the total cost of capture was 38.81 $ tCO2-1, indicating strong potential for industrial application. © 2025, The Authors. All rights reserved.

关键词： Energy efficiency

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TiO2 coated stainless steel mesh with high separation efficiency and flux to separate dispersed and emulsified oil in oil-in-water solution

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Separation and Purification Technology 2025年 373卷

作者： Xu, Weicheng Li, Shuangde Sun, Shiyin Chen, Yunfa State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China

Cooking oil fumes (COFs), which primarily consist of oil droplets and volatile organic compounds (VOCs) generated during Chinese cooking, are typically treated using liquid absorption methods due to their operational simplicity and relatively high purification efficiency. However, this method generates waste liquid, leading to secondary pollution Membrane separation is considered an effective approach to addressing secondary pollution issues at low cost and high efficiency. However, achieving simultaneous high flux and separation efficiency for both dispersed and emulsified oils in aqueous solutions remains challenging, particularly while maintaining operational stability. In this work, we firstly fabricated titanium dioxide coated on the stainless steel mesh (TiO2-SSM) through spin coating TiO2 sol following calcination, which has superhydrophilic and underwater superoleophobic properties, and can separate oil–water mixtures (dispersed oil) with high flux and efficiency (over 95%). Then, the TiO2-SSM was further handled by NaOH hydrothermal treatment to obtain TiO2 arrays structure on the surface (H-TiO2-SSM). It gains the ability to separate both dispersed and emulsified oil, with a separation efficiency of 70%, due to the demulsification by the TiO2 arrays. After stacking the two layers of H-TiO2-SSM, the separation efficiency can be increased to 95%. Furthermore, the membrane exhibited great chemical and mechanical stability, which may show application prospects in the field of oil–water separation. © 2025 Elsevier B.V.

关键词： Demulsification

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Influences of FeOx on properties, structures and phase transformations of BaO-bearing bosh slags in the blast furnace

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Ceramics International 2025年

作者： Xu, Renze Wang, Zhen State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing101408 China

The influences of FeOx on viscosities, structures and phase transformation of CaO-Al2O3-SiO2-MgO-BaO-(1-7 wt%)FeOx bosh slags were researched. The slag viscosity and the break point temperature gradually reduced with adding FeOx from 1 wt% to 7 wt%. Raman spectra and XPS results indicated that higher FeOx content in bosh slags could facilitate to form uncomplicated silicate units, which was conducive to decreasing the slag polymerization degree and the viscosity. From the XRD results of the slag at different temperatures, merwinite and melilite phase was precipitated and coexisted in bosh slags when the temperature was lower than the break point temperature, and the species of the crystalline solids was not changed with the addition of FeOx. Finally, the relationship among the viscosity, structure and crystal phase was further discussed. At high temperature, the bosh slag viscosity was mainly influenced by the microstructure. With the temperature decreasing and the formation of crystalline phases, the viscosity was simultaneously affected by the structure and solid phase. When the temperature was further reduced, a lot of crystals were crystallized from the molten slag and the viscosity was significantly determined by the size and morphology of the solid crystal. The comprehensive influences of the microstructure and macroscopic phase increased the viscosity with reducing the temperature. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Blast furnaces

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Green innovation unleashed:Harnessing tungsten-based nanomaterials for catalyzing solar-driven carbon dioxide conversion

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Chinese Chemical Letters 2025年第2期36卷 108-117页

作者： Weidan Meng Yanbo Zhou Yi Zhou State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery East China University of Science and TechnologyShanghai 200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Carbon dioxide photocatalytic reduction (CO_(2)-PR) is an efficient method for controlling CO_(2)emissions and generating cleaner energy while mitigating global *** oxides (WxOy) have attracted considerable attention for CO_(2)-PR due to their excellent spectral ***,comprehensive reviews are lacking on the use of WxOyfor CO_(2)-***,this review provides a detailed summary of t research progress made with WxOy-based catalysts in CO_(2)-*** also explains the fundamental principles of CO_(2)-PR and evaluates key performance indicators that affect the activity of WxOy-based photocatalysts,including yield,selectivity,stability,and apparent quantum ***,this review explores opportunities for synthesizing high-performance WxOy-based photocatalysts and highlights their potential for the green preparation of C1/C2 products through CO_(2)-*** innovative strategies aim to address the challenges and pressures associated with energy and environmental issues,particularly by enhancing artificial photosynthesis efficiency.

关键词： Carbon dioxide photoreduction Tungsten-based nanocatalyst Mechanism Performance evaluation Selectivity

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Nanofiltration membranes for Mg2+/Li+ separation: Separation mechanisms, mass transfer models and current research advances

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Separation and Purification Technology 2025年 370卷

作者： Xu, Hongxiang Lan, Diya Wang, Junfeng Deng, Jiushuai Huang, Geng Cao, Yijun Huang, Heng Wang, Jingzheng He, Mengqi Zou, Shengwang Yang, Jiashuo Beijing100083 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Materials Science and Engineering Henan University of Science and Technology Luoyang471000 China Industries Co. Ltd. Sichuan Chengdu610041 China

The global demand for lithium resources is rapidly increasing, primarily driven by the growing use of lithium-based batteries in electric vehicles and stationary energy storage systems. Salt lakes represent a cornerstone of the global lithium supply, but efficient separation of Mg2+ and Li+ remains a significant challenge in lithium extraction. This review examines the key techniques for lithium extraction from salt lakes, focusing on their respective advantages and limitations. Nanofiltration (NF) membranes, known for their selective separation properties, show considerable potential for the efficient separation of Mg2+ and Li+. The paper discusses the fundamental separation mechanisms and mass transfer models associated with NF membranes, emphasizing recent developments in Mg2+/Li+ separation through four main approaches: enhancing the Donnan effect, optimizing membrane pore size, integrating dual-mechanism synergistic designs, and optimizing membrane support layers. Additionally, the review proposes three future research directions specifically aimed at advancing NF membrane design for Mg2+/Li+ separation. This review offers a timely and relevant analysis of the strategies used to enhance NF membrane performance in this important application. © 2025

关键词： Nanofiltration

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Comprehensive insight into Cu-based catalysts for CO2 hydrogenation to methanol

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Sustainable Materials and Technologies 2025年 45卷

作者： San, Xiaoguang Li, Xudong Jin, Quan Dai, Beibei Zhang, Lei Meng, Dan Qi, Jian College of Chemical Engineering Shenyang University of Chemical Technology Shenyang110142 China School of Materials Science and Engineering Jilin University Changchun130022 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Catalytic hydrogenation of carbon dioxide (CO2) to methanol is a key strategy for mitigating climate change and promoting a sustainable methanol economy. In recent years, copper-based catalysts have attracted much attention due to their abundant reserves, low cost and excellent catalytic performance. This paper systematically reviews the latest progress of copper-based catalysts and deeply explores the process principles of carbon dioxide hydrogenation to methanol, covering multiple pathways such as direct hydrogenation, reforming, water-gas shift and carbon monoxide hydrogenation, and carboxylic acid intermediates. At the same time, the historical evolution of methanol synthesis catalysts and various preparation methods of copper-based catalysts are analyzed, their advantages and disadvantages and adjustment strategies are discussed, and methods for improving catalytic performance by introducing different supports and additives are introduced. In addition, the reaction mechanism of carbon dioxide-based methanol synthesis is explained, and the current status and challenges of industrial development are outlined, especially key issues such as demonstration projects, commercial operations, and carbon dioxide capture, green hydrogen source costs, and catalyst deactivation. Based on this, this paper proposes a series of suggestions for future research directions, aiming to improve catalyst performance, optimize operating conditions, and accelerate its commercialization process, so as to contribute to the realization of carbon neutrality goals. © 2025 Elsevier B.V.

关键词： Hydrogenolysis

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Mechanism of Iron Ions Redox Cycle on the Anaerobic Degradation of 3, 5, 6-Trichloro-2-Pyridinol by Pseudomonas Aeruginosa D-2

SSRN

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SSRN 2025年

作者： Lv, Xueru Zhang, Lingping Zhang, Lele Gao, Xijun Ding, Xiaoke Wang, Xueting Jia, Nan Li, Wei Li, Jie Song, Caihong Zhang, Chen Wang, Shenghui College of Agriculture and Biology Liaocheng University Liaocheng252059 China Scbool of Pharmaceutical Sciences and Food Engineering Liaocheng University Liaocheng252059 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

The sluggish metabolism of 3,5,6-trichloro-2-pyridinol (TCP) in anoxic or anaerobic environments represents a significant challenge in bioremediation of TCP-contaminated habitats. Although the promotion of anaerobic biodegradation by insoluble iron minerals has been recognized, the impact and mechanisms of soluble iron ions remain poorly understood. Herein, the soluble Fe(II) was firstly incorporated into the anaerobic biodegradation of TCP by Pseudomonas aeruginosa D-2 and its response of TCP metabolism to the introduction of Fe(II) were investigated. The Fe(II) ion significantly enhanced the anaerobic biodegradation of TCP (50 mg/L) with the removal efficiency increasing from 50.24% to 80.32% within 72 h, along with noticeable cellular proliferation. Interestingly, this process was accompanied by a dynamic equilibrium transformation between Fe(II) and Fe(III). Further study revealed TCP's dechlorination metabolite was substantially degraded by strain D-2 coexisting with Fe(III), concurrently with the reduction of Fe(III) to Fe(II). These findings suggested the iron ions redox cycle significantly promoted the anaerobic biodegradation of TCP. Moreover, metabolomics analysis conformed strain D-2 could perform anaerobic reductive dechlorination of TCP. More importantly, genomic and transcriptomic analyses first revealed Fe(II) markedly enriched energy metabolism pathways, such as TCA cycle and oxidative phosphorylation, and obviously up-regulated some iron-dependent enzymes crucial for ring-cleaving and energy metabolism. These up-regulation may provide ample energy (ATP) and reducing power for the cell growth and the initiation of reductive dechlorination of TCP. This study revealed the effects and mechanism for promoting TCP anaerobic respiration activity by the iron ions redox cycle, acting as an 'energy buffer, in bioremediation of halogenated aromatic contaminants. © 2025, The Authors. All rights reserved.

关键词： Dechlorination

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Multicomponent supramolecular nanoaggregates with co-emissive electrochemiluminescence

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Matter 2025年

作者： Dai, Li Fang, Jinglong Jiang, Tong Li, Qi Ren, Xiang Li, Yuyang Wu, Dan Ma, Hongmin Lei, Jianping Ju, Huangxian Wei, Qin Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering University of Jinan Jinan250022 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing210023 China

The development of particulate electrochemiluminescence (ECL) emitter with high efficiency is challenging due to either the low electrochemical reaction efficiency for nanoparticles with larger sizes or the low quantum efficiency of molecular luminophores in aggregated forms. While the synthesis of aggregation-induced electrochemiluminescence (AI-ECL) luminophores with high quantum efficiency requires complicated procedures, a supramolecular strategy is proposed for constructing multicomponent nanoaggregates with co-emissive ECL. Aggregation-induced emission (AIE) active tetraphenylethylene (TPE) was used as a molecular matrix to disperse the aggregation-caused quenching (ACQ) luminophores with high quantum efficiency, boron dipyrromethene (BDP), and rhodamine B (RhB). Co-emissions of both molecular matrix and doped luminophores were achieved. The synergistic effects of the supramolecular interactions for enhancement of emission efficiency were confirmed by spectral measurement and molecular dynamic simulation. Small nanoaggregates with higher ECL efficiency were prepared on microfluidic chips and were used as nanolabels for sensitive ECL immunoassays. © 2025 Elsevier Inc.

关键词： Nanoclay

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Biosorbent silver nanoparticles decorated coffee-ground waste composite for cleaning water and antimicrobial applications

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Environmental Science and Pollution Research 2025年第5期32卷 2280-2297页

作者： Al-Ghamdi, Azza A. Ibrahim, Sherif M. Lu, Xingmei Xin, Jiayu El-Sayed, Ibrahim El-Tantawy Galhoum, Ahmed A. Wageh, Swelm. Department of Chemistry College of Science Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam31441 Saudi Arabia Renewable and Sustainable Energy Unit Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam31441 Saudi Arabia Nuclear Materials Authority P.O. Box 530 El-Maadi Cairo Egypt Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Innovation Academy for Green Manufacture Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Sino Danish College University of Chinese Academy of Sciences Beijing100049 China Chemistry Department Faculty of Science Menoufia University Shebin El-Kom Egypt Department of Physics Faculty of Science King Abdulaziz University Jeddah21589 Saudi Arabia

A sustainable biosorbent, silver nanoparticles-decorated coffee-ground waste (CWAg), was synthesized through a simple in-situ reduction method. CWAg is extensively characterized via SEM–EDX, PZC, FTIR, XRD, HR-TEM, and XPS analyses. The biosorbent was tested to remove chromium (Cr(VI)) and methylene blue (MB) from wastewater, and its antibacterial properties was evaluated. CWAg demonstrated efficient sorption efficiencies, achieving ⁓149.9 mg/g at 323 K and pH: 2.0 for Cr(VI) and ⁓113.4 mg/g at 293 K and pH: 6.0 for MB, at a biosorbent dose of 1 g/L. The equilibration times were 90 and 120 min for Cr(VI) and MB, with half-sorption times (tHST) of 9.2 and 13.9 min, respectively. The sorption mechanisms were successfully fitted with Sips isotherm and Pseudo-second-order models. Simultaneous sorption of MB and Cr(VI) at pH 2.0 exhibited antagonism, while a synergistic effect was observed at pH 6.0. Desorption and regeneration were achieved using NaOH and HCl solutions for Cr(VI) and MB, respectively. The efficiencies were just reduced by 9–13%. Finally, CWAg exhibited remarkable effectiveness for removing Cr(VI) from complex tannery effluent. Moreover, CWAg demonstrated positive antibacterial effects against both Gram-positive and Gram-negative bacteria, surpassing raw coffee-ground waste, underscoring the significant role of silver nanoparticles in enhancing bacterial inhibition. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Silver nanoparticles

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High-temperature long-term oxidation resistance of SiCf/SiC-TaB2 composites fabricated by organic-inorganic hybrid precursor infiltration and pyrolysis process

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Corrosion Science 2025年 254卷

作者： Lv, Haozhong Zhu, Shipeng Tang, Yilin Zhang, Boya Sun, Wenting Yang, Yunhua Li, Junping Li, Junning Ge, Min Zhang, Weigang Science and Technology on Advanced Functional Composites Laboratory Aerospace Research Institute of Materials & Processing Technology Beijing100076 China State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

As an ideal material for high-performance aeroengines, silicon carbide ceramic matrix composites (SiC-CMCs) still face challenges such as degradation due to high-temperature oxidation and limitations of traditional processing methods. In this study, the SiCf/SiC-TaB2 composites were fabricated using an organic-inorganic hybrid process combining precursor infiltration and pyrolysis (PIP) and slurry infiltration (SI) techniques. Analysis of both non-isothermal and isothermal oxidation behaviors revealed that the incorporation of TaB2 particles substantially improves the oxidation resistance of SiC-CMCs over a wide temperature range. Moreover, a critical finding is the structural evolution of Ta2O5, formed from the oxidation of TaB2, which transitions from grainy to flaky and eventually to a layered structure, significantly contributing to the composites' long-term oxidation resistance. Compared with the conventional SiCf/SiC composites, the mass change of the SiCf/SiC-TaB2 composites decreased by 34.8 %, 52.0 %, and 86.2 % after oxidation at 1200°C, 1300°C, and 1400°C for 100 hours, respectively. Meanwhile, the strength retention of the composites increased by 6.61 %, 13.90 %, and 6.87 % at these temperatures. These findings underscore the efficacy of the organic-inorganic hybrid precursor infiltration and pyrolysis process in producing high-performance SiC-CMCs with enhanced oxidation resistance and mechanical durability. © 2025 Elsevier Ltd

关键词： Organic-inorganic materials

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