Separation and Purification Technology最新文献

{"title":"Design and optimization of extractive distillation for separating methyl ethyl ketone/isopropanol/n-heptane ternary azeotropes","authors":"Shuangxin Fan, Yan Cheng, Xinyuan Cheng, Tong Xia, Jing Li, Jun Li, Lanyi Sun","doi":"10.1016/j.seppur.2025.135559","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135559","url":null,"abstract":"In pharmaceutical manufacturing, there is a widespread presence of industrial waste liquids containing methyl ethyl ketone, isopropanol, and n-heptane. This work employs extractive distillation to separate this multi-azeotropic system. Firstly, the conventional extractive distillation process (CED) is designed, and the optimal parameters of the three-objective trade-off are obtained by multi-objective optimization. Then, the side-stream distillation, intermediate reboiler and heat integration enhancement methods are introduced to reduce energy consumption and costs. The results demonstrate that the double side-stream extractive distillation with intermediate reboiler and heat integration process (DSSEDIR-HI) shows the best economic and environmental performance. Compared to the CED process, the total annual cost is reduced by 23.9 %, CO₂ emissions are decreased by 42.5 %, and thermodynamic efficiency is improved by 68.4 %. This study provides a sustainable pathway for the separation of methyl ethyl ketone/isopropanol/n-heptane mixture.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"57 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Total recovery of bacterioruberin from Arthrobacter via sustainable one-cycle extraction: A bench-scale guide to solvent selection and process intensification","authors":"Angie V. Caicedo Paz, Daniele Giuffrida, Luigi Mondello, Alessia Tropea, Francesca Rigano, Fabiane O. Farias, Marcelo Franco, Cassamo U. Mussagy","doi":"10.1016/j.seppur.2025.135483","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135483","url":null,"abstract":"Bacterioruberin (BR) is an uncommon C₅₀ natural carotenoid known for its exceptional antioxidant and antibacterial properties, making it highly promising for use in the food, pharmaceutical, and cosmeceutical sectors. Despite this potential, its commercial use is hindered by challenges in <em>downstream</em> processing. This research offers a comparative analysis of three methods to fully recover BR from <em>Arthrobacter</em> sp. CP30, a microorganism that produces approximately 95 % of BR and BR-derivatives. The first strategy, utilizing traditional methanol extraction, achieved a recovery rate of about 80 %, which could be improved to 100 % with optimized conditions. The second strategy employed binary solvent mixtures of alcohols and fatty acids, allowing for complete BR recovery under gentle extraction conditions. The third strategy combined green biosolvents, such as bio-based ethanol, with microwave-assisted extraction (MAE), resulting in a 100 % recovery rate and an Eco-Scale score of 89, indicating high environmental sustainability. In all methods, solvent selection was selected by COSMO-SAC modeling, which identified favorable molecular interactions between BR and the solvents tested. Overall, this work provides an efficient, sustainable, and scalable framework for BR recovery and serves as a practical guide for researchers and professionals to tailor extraction protocols according to their specific laboratory or industrial setups, to accomplish the full potential of high-value C₅₀ carotenoids.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"26 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultra deep desulfurization of diesel over Cu/Ce-graphitic carbon nitride under visible light: a sustainable approach for clean fuel production","authors":"Lei Wang, Shang Gao, Huili Huang, Yincun Lv, Muhammad Yaseen, Shuzhen Li","doi":"10.1016/j.seppur.2025.135564","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135564","url":null,"abstract":"The combustion of sulfur-containing diesel fuels releases harmful pollutants such as sulfur oxides and sulfate particulate matter, posing significant environmental and health risks. Traditional desulfurization methods often suffer from carbon and hydrogen loss, reducing fuel efficiency. This study addresses these challenges by developing a Cu/Ce co-doped graphitic carbon nitride (Cu-Ce/CN) photocatalyst via a hydrothermal method for ultra-deep desulfurization under visible light. Comprehensive characterization techniques (SEM, XPS, XRD, UV–Vis DRS, and BET) confirmed the uniform dispersion of Cu and Ce on the CN matrix, with Cu existing as Cu⁺/Cu²⁺ and Ce as Ce³⁺/Ce⁴⁺, forming an “electron bridge” to enhance charge separation. The optimized Cu-Ce/CN (1:1 ratio) exhibited a narrowed bandgap (2.40 eV), extended visible-light absorption, and a high surface area, facilitating efficient generation of reactive oxygen species. Under optimal conditions, the system achieved a 99.27 % desulfurization ratio within 60 min, degrading refractory sulfides like dibenzothiophenes (DBTs) into sulfoxides/sulfones via photocatalytic oxidation. Cycling tests demonstrated excellent stability (95.8 % efficiency after 10 cycles), with XRD confirming structural integrity. This work presents a sustainable and efficient strategy for diesel desulfurization.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"9 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fixed-bed breakthrough curve modeling for effective samarium adsorption on radiated-grafted-vinyl acetate-polypropylene fibrous","authors":"Mehdi Asadollahzadeh, Rezvan Torkaman, Meisam Torab-Mostaedi, Fateme Motamedi Rad","doi":"10.1016/j.seppur.2025.135233","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135233","url":null,"abstract":"The research involved exposing polypropylene polymer fibers to gamma-ray irradiation in order to attach vinyl acetate monomers to the fibers. Next, the grafted polymer was hydrolyzed and then placed in a solution containing diglycolic anhydride and 1,4-dioxane to attach the ligand, resulting in the creation of a modified polymer adsorbent with effective samarium ion adsorption capabilities. Various factors influencing samarium adsorption were studied, such as contact time, pH levels, temperature, adsorbent weight, and samarium ion concentration. The structure of the adsorbent was analyzed using FTIR and SEM techniques, revealing a significant grafting percentage with a well-structured material. Both equilibrium isotherms and kinetics were examined, with the results aligning with the Langmuir and pseudo second order models. Research involving the adsorption process of rare earths, copper, zinc, and cobalt indicated that samarium and other rare earth ions are specifically adsorbed at a pH of 3, while cobalt ions do not exhibit significant adsorption. This finding suggests that this process could be a viable option for treating leach solutions resulting from the recovery of samarium and cobalt magnets. The research conducted a comparison of five distinct models for breakthrough curves to simulate the dynamic adsorption process. Modeling the breakthrough curve characteristics aided in comprehending the dynamic behavior of the selected adsorbent during the adsorption of samarium.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"105 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat integration in reactive distillation: How far have we come and what is still missing?","authors":"Irvy Ai Xia Teh, Hao-Yeh Lee, Zong Yang Kong, Jaka Sunarso","doi":"10.1016/j.seppur.2025.135437","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135437","url":null,"abstract":"Although several review papers have been published on reactive distillation (RD), none have provided a focused analysis and consolidated the full range of heat-integration (HI) strategies aimed at enhancing the energy efficiency of RD process. Recognizing RD as a promising process intensification technique, this review explores the various HI strategies that facilitate energy recovery and reuse within RD process. These include: (i) design-based modifications, which achieve internal HI without additional equipment while also recognizing an overlooked design variable, e.g., catalyst holdup, (ii) heat-pump-assisted approaches such as internally heat-integrated distillation column (HIDiC), mechanical vapor recompression (MVR), and bottom flash (BF), (iii) multi-effect configurations, and (iv) hybrid approaches combining multiple HI. While these strategies are considered mature and have been reviewed individually, existing reviews rarely explore how they may be refined or combined to achieve greater energy savings for RD. To address this gap, this review discusses the practical considerations and challenges, alongside identifying research gaps and future prospects for implementing HI strategies in RD. Of particular interest is the emerging double-effect HI, which leverages upon multiple columns operating at different pressures to significantly reduce external utility demands. While this method has demonstrated notable energy savings, its application in RD remains scattered across individual studies and has yet to be systematically reviewed. Given its promising nature, a comprehensive review to critically evaluate the role of double-effect HI in RD is highly valuable. Overall, this review aims to inspire new HI directions in RD to support the advancement of next-generation sustainable chemical manufacturing.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"26 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calcium modification in food waste digestate derived granular biochar: unveiling synergistic mechanisms for phosphorus recovery","authors":"Yeqi Lin, Qindong Chen, L.I. Fong Yau Sam, Ke Huang, Qian Wang, Huanan Wu, Qiyong Xu","doi":"10.1016/j.seppur.2025.135513","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135513","url":null,"abstract":"Phosphorus (P) is a primary concern in wastewater. It is crucial to develop efficient adsorbents for long-term P removal from wastewater. In this study, we proposed a calcium carbonate (CaCO₃) enhanced granular biochar (BC) adsorbent by co-pyrolysis of food waste digestate, and systematically evaluated the adsorbent properties and adsorption mechanism. Material characterization has verified that in-situ Ca loading via 4–10 nm pore filling improves surface functional groups and enhances biochar yield. The adsorbent prepared with 10 % CaCO₃ achieved the best phosphorus removal capacity (18–20 mg-P/g-BC) versus unmodified counterparts (8–10 mg-P/g-BC). The adsorption followed Langmiur isotherm model and Pseudo-second-order kinetics. Calcium induced active sites enhanced the phosphate trapping with optimal phosphate removal occurring at pH 6–9. Modification with excessive CaCO₃ (20 %) induced structural fragility, and the Ca<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>P precipitate overformation hindered the further phosphate adsorption. Fixed-bed column adsorption revealed prolonged saturation thresholds (&gt;125 h), and the adsorption fitted well with the Clark mass-transfer model (R² = 0.992). Notably, equilibrium between complexation and precipitation mechanisms was achieved at the 10 % CaCO₃ modification. This study establishes a strategy for optimizing granular P adsorbent systems through controlled mineral modification, thereby providing theoretical and practical foundations for full-scale phosphorus recovery deployment.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"32 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Covalent organic framework membranes for wastewater treatment: structural design, interfacial modulation, and environmental applications","authors":"Youngmin Choi, Changwoo Nam","doi":"10.1016/j.seppur.2025.135514","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135514","url":null,"abstract":"The contamination of water resources by persistent organic pollutants, such as polycyclic aromatic hydrocarbons and chlorinated solvents, and inorganic contaminants, including heavy metals like lead and mercury, poses substantial risks to human health and aquatic ecosystems. Conventional wastewater treatment technologies, including biological degradation, coagulation–flocculation, activated carbon adsorption, and advanced oxidation processes, often exhibit limited efficiency in removing low-concentration or recalcitrant pollutants under variable environmental conditions. Membrane-based separation technologies offer a promising alternative due to their energy efficiency, design flexibility, and selective removal capabilities. Among these, Covalent Organic Frameworks (COFs) have emerged as a next-generation membrane material owing to their crystalline porous structures, high surface areas, and tunable chemical functionalities. COF membranes often exhibit rejection efficiencies exceeding 99 % for dyes, pharmaceuticals, and heavy metals while maintaining high water fluxes. Moreover, the integration of photocatalytic moieties, ionic functionalities, or nanomaterial composites further enhances their selectivity, permeability, and anti-fouling performance. This review provides a comprehensive overview of the current progress in COF-based membranes for wastewater treatment, focusing on structure–property relationships, fabrication strategies, and factors affecting separation performance. Challenges and future directions for the development of scalable and durable COF membranes for industrial applications are also discussed.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"1 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineering active Co-Co/Co-N sites in carbon nanotube catalyst for efficient Fenton-like removal of sulfamethoxazole","authors":"Yue Ma, Yi Chen, Minghui Sun, Xinhe Zhang, Bo Liu, Shi Zhou, Wei Jiang, Chunbo Liu","doi":"10.1016/j.seppur.2025.135474","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135474","url":null,"abstract":"Development highly efficient and stable carbon-loaded cobalt-based catalysts holds great significance for Fenton-like wastewater purification. The incorporation of N atoms into the carbon substrate can effectively modulate the charge distribution of the catalyst and generate multiple active sites. Herein, using ZIF-9 and melamine as precursors, Co nanoparticles encapsulated N-doped carbon nanotubes (Co@NCNT) were constructed. In Fenton-like catalysis, Co@NCNT could efficiently activate peroxymonosulfate (PMS) to produce reactive oxygen species (ROS), and completely degrade sulfamethoxazole (SMX) within 5 min. Meanwhile, the Co@NCNT/PMS system shows good resistance to inorganic anions and natural organic matter and is highly adaptable to various organic pollutants. Continuous 10 h operation of SMX degradation indicates Co@NCNT has good cycling stability and practical application potential. Mechanism analysis reveals the synergistic effect between radicals (SO₄^•-) and non-radicals (¹O₂, Co(IV) = O). In addition, there are two active sites (Co-Co/Co-N) to propel PMS activation, Co<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>Co bonds primarily contribute to the formation of ¹O₂, Co(IV) = O, and SO₄^•-, whereas Co<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>N bonds generate a minor amount of ¹O₂, minimize Co leakage, and enhance electron transfer efficiency. In summary, this work provides a strategy for the simple fabrication of catalysts with dual active sites for efficient Fenton-like catalysis.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"123 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical separation of UO22+ and Ni2+ using formed WO3 film electrode in LiCl-KCl eutectic","authors":"Quanxing Liu, Mei Li, Rugeng Liu, Meng Zhang, Yubao Liu, Wei Han","doi":"10.1016/j.seppur.2025.135472","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135472","url":null,"abstract":"To separate UO₂²⁺ from the impurity element Ni²⁺, WO₃ film electrode was chosen as cathode to study the electrochemical behaviors of UO₂²⁺ and Ni²⁺. First, WO₃ film was prepared at applied voltage of 25 V in NH₄F-(CH₂OH)₂ solution. The formed WO₃ film exhibited a porous structure and preferentially grew along the (020) crystal direction. Then, the electroreduction mechanisms of Ni²⁺ and UO₂²⁺, as well as the kinetic properties of UO₂²⁺/UO₂ couple and nucleation mode of UO₂ were studied on WO₃ film electrode before and after the addition of the Ni²⁺ using various electrochemical techniques. The electrode reactions of Ni²⁺ and UO₂²⁺ were found to be one-step two-electron transfer process and two-step one-electron transfer process, respectively. The deposition potential of UO₂⁺/UO₂ was found to be more negative than that of Ni²⁺/Ni, indicating that UO₂ and Ni could be co-deposited. The nucleation mode of UO₂ and the exchange current density(<em>j</em>₀) of UO₂²⁺ /UO₂ couple were measured on formed WO₃ film electrode by CA and LP techniques. It was found that in the presence of Ni²⁺, the nucleation mode of UO₂ unchanged, and the value of <em>j</em>₀ became bigger, showing that the presence of Ni²⁺ facilitates the reduction of UO₂²⁺ to UO₂. The electrochemical separation was carried out on W and WO₃/W film electrode through constant potential electrolysis for 1 h. The deposition products were characterized by XRD, SEM-EDS and AFM which were composed of dendritic Ni and octahedral UO₂ on W electrode and octahedral UO₂ and polyhedral Ni on WO₃/W film electrode. Notably, after 6 h electrochemical separation, the obtained product was only UO₂. ICP-AES analysis result indicated that as the electrolysis proceeded, the concentration of UO₂²⁺ decreased, while the concentration of Ni²⁺ first decreased and then increased, and finally returned to its initial value, showing the complete separation of Ni²⁺ and UO₂²⁺. The separation factor (<em>SF</em>) of UO₂²⁺/Ni²⁺ was estimated to be 240 ± 5.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"28 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What governs phosphorus adsorption on biochar-supported layered double hydroxides? A data-driven analysis of parameter interactions","authors":"Xin Huang, Chen Li, Guixian Xie, Huiqiang Ma, Bo Wang","doi":"10.1016/j.seppur.2025.135452","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.135452","url":null,"abstract":"The rational design of advanced functional materials, such as adsorbents for tackling water eutrophication, is often challenged by inconsistent experimental findings and a lack of generalizable design principles. This difficulty stems from the complex nature of these materials, where performance is dictated by the non-linear interplay of numerous synthesis and operational parameters that traditional trial-and-error methods cannot adequately resolve. This study presents a systematic explainable AI (XAI) framework to move beyond simple prediction and instead deconstruct the complex structure-performance relationships in biochar-supported layered double hydroxide composites (LDH@BC). Leveraging a 2057-point literature dataset, our high-accuracy CatBoost model (R² = 0.956) serves as a reliable foundation for this in-depth analysis. The analysis identified a set of optimal operating conditions, including a solution pH of 4–7 and an adsorbent dosage of 1.0–2.0 g·L⁻¹. Crucially, the model also revealed a key design principle: a low LDHs/BC ratio (0–1.0), combined with sufficient adsorbent dosages, maximizes adsorption capacity by promoting optimal nanoparticle dispersion. This work provides not only specific, data-driven guidelines for the rational design of LDH@BC adsorbents but also demonstrates a transferable XAI framework for accelerating the transition from empirical screening to intelligent, data-informed design for other complex functional materials.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"75 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}