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Novel application of red mud as disposal catalyst for pyrolysis and gasification of coal

Carbon Resources Conversion 2021年第1期4卷 10-18页

作者： Zhaohui Chen Deliang Wang Hang Yang Yusheng Zhang Yunjia Li Changming Li Jian Yu Shiqiu Gao State Key Laboratory of Multi-phase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100190China Chemical Engineering Polytechnique MontrealMontrealQC H3C 3A7Canada

Red mud(RM)with the high alkalinity as a catalyst was evaluated for coal pyrolysis in a fixed bed as well as CO_(2) gasification of its resultant char in a thermogravimetric analyzer(TGA).The addition of RM into coal could improve the quality of tar during pyrolysis and enhance the reactivity of char during *** catalytic pyrolysis with 12 wt%RM at 600℃,the light fraction in tar was 72.0 wt%,which increased by 20.0%,compared with coal pyrolysis *** role of metal oxides in RM on coal pyrolysis was further clarified as *** catalytic pyrolysis with RM,the specific surface area of resultant char increased,especially for mesoporous surface area,and meanwhile the sodium in RM was proved to migrate to the char *** positive factors contributed to the CO_(2) gasification activity of *** with the high alkalinity showed a promising catalyst candidate for coal pyrolysis and gasification in terms of its catalytic effects and low cost.

关键词： Catalytic coal pyrolysis Red mud Tar upgrading Metal oxides Sodium migration Catalytic gasification

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High-Efficiency Photo-Induced Charge Transfer for SERS Sensing in N-Doped 3D-Graphene on Si Heterojunction

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Energy & Environmental Materials 2024年第2期7卷 268-276页

作者： Guanglin Zhang Jie Sun Genwang Wei Shan Zhang Zhengyi He Huijuan Wu Bingkun Wang Siwei Yang Guqiao Ding Zhiduo Liu Zhiwen Jin Caichao Ye Gang Wang Department of Microelectronic Science and Engineering School of Physical Science and TechnologyNingbo UniversityNingbo 315211China Department of Biochemistry and Molecular Biology School of Basic Medical SciencesShenzhen UniversityShenzhen 518071China Academy for Advanced Interdisciplinary Studies&Department of Materials Science and Engineering Guangdong Provincial Key Laboratory of Computational Science and Material DesignSouthern University of Science and TechnologyShenzhen 518055China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(MOE)School of PhysicsBeijing Institute of TechnologyBeijing 100081China School of Physical Science and Technology&Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou UniversityLanzhou 730000China

Nitrogen-doped three-dimensional graphene(N-doped 3D-graphene)is a graphene derivative with excellent adsorption capacity,large specific surface area,high porosity,and optoelectronic ***,N-doped 3D-graphene/Si heterojunctions were grown in situ directly on silicon(Si)substrates via plasma-assisted chemical vapor deposition(PACVD),which is promising for surface-enhanced Raman scattering(SERS)substrates *** analyses of theoretical simulation,incorporating N atoms in 3D-graphene are beneficial to increase the electronic state density of the system and enhance the charge transfer between the substrate and the target *** enhancement of the optical and electric fields benefits from the stronger light-matter interaction improved by the natural nano-resonator structure of N-doped *** as-prepared SERS substrates based on N-doped 3D-graphene/Si heterojunctions achieve ultra-low detection for various molecules:10^(-8)M for methylene blue(MB)and 10^(-9)M for crystal violet(CRV)with rhodamine(R6G)of 10^(10)*** practical detected,10^(-8)M thiram was precisely detected in apple peel *** results indicate that N-doped 3D-graphene/Si heterojunctions based-SERS substrates have promising applications in low-concentration molecular detection and food safety.

关键词： charge transfer DFT simulation N-doped 3D-graphene SERS Thiram detection

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α2,3-Sialylation with Fucosylation Associated with More Severe Anti-MDA5 Positive Dermatomyositis Induced by Rapidly Progressive Interstitial Lung Disease

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Phenomics 2023年第5期3卷 457-468页

作者： Rongrong Zhang Li Guo Jichen Sha Shuwai Chang Jiangfeng Zhao Kaiwen Wang Jiucun Wang Jianxin Gu Jing Liu Shifang Ren NHC Key Laboratory of Glycoconjugates Research Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesFudan UniversityShanghai 200032China Zhangjiang Fudan International Innovation Center Human Phenome InstituteFudan UniversityShanghai 200032China Department of Rheumatology Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200032China State Key Laboratory of Genetic Engineering School of Life ScienceFudan UniversityShanghai 200032China

Dermatomyositis(DM)is a heterogeneous autoimmune disease associated with numerous myositis specific antibodies(MSAs)in which DM with anti-melanoma differentiation-associated gene 5-positive(MDA5+DM)is a unique subtype of DM with higher risk of developing varying degrees of Interstitial lung disease(ILD).Glycosylation is a complex posttranslational modification of proteins associated with many autoimmune ***,the association of total plasma N-glycome(TPNG)and DM,especially MDA5+DM,is still *** of 94 DM patients and 168 controls were analyzed by mass spectrometry with in-house reliable quantitative method called Bionic Glycome *** regression with age and sex adjusted was used to reveal the aberrant glycosylation of DM and the association of TPNG and MDA5+DM with or without rapidly progressive ILD(RPILD).The elastic net model was used to evaluate performance of glycans in distinguishing RPLID from non-RPILD,and survival analysis was analyzed with N-glycoslyation score by Kaplan-Meier survival *** was found that the plasma protein N-glycome in DM showed higher fucosylation and bisection,lower sialylation(α2,3-notα2,6-linked)and galactosylation than *** MDA5+DM,more severe disease condition was associated with decreased sialylation(specificallyα2,3-sialylation with fucosylation)while accompanying elevated H6N5S3 and H5N4FSx,decreased galactosylation and increased fucosylation and the complexity of ***,glycosylation traits have better discrimination ability to distinguish RPILD from non-RPILD with AUC 0.922 than clinical features and is *** advantage accrued to MDA5+DM with lower N-glycosylation score(p=3e-04).Our study reveals the aberrant glycosylation of DM for the first time and indicated that glycosylation is associated with disease severity caused by ILD in MDA5+DM,which might be considered as the potential biomarker for early diagnosis of RPILD and survival evaluation of MDA5+DM.

关键词： Dermatomyositis Anti-melanoma differentiation-associated gene 5-positive Interstitial lung disease Glycosylation Matrix assisted laser desorption/ionization time of flight mass spectrometry

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Two Birds, One Stone: Simultaneous Removal of Saccharides and Metal Ions from Ionic Liquid Solution by Selective Electrodialysis

SSRN

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SSRN 2023年

作者： Zhang, Shanshan Wu, Yingqiu Chen, Shangqing Wang, Huijiao Wang, Junfeng Nie, Yi Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering and Pharmacy Wuhan Institute of Technology Wuhan430205 China Beijing100083 China Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190 China

The efficient and cost-effective elimination of saccharides and metal ions solving in the ionic liquids spinning solution produced in the regenerated cellulose fibers (RCFs) manufacture is highly desirable in view of the RCF quality and IL recycling. Herein, the ‘two birds and one stone’ strategy was proposed for simultaneous removal of saccharides and metal ions solving in [Emim]Dep spinning solution by selective electrodialysis (SED). Benefiting from the electric neutrality of saccharides, the differences of IL and metal ions (Mg2+ and Ca2+) in electrostatic interaction and hydration radius, the permeation ratio of IL (PIL), removal ratios of saccharides (Rs), Mg2+ (RMg2+) and Ca2+ (RCa2+) could reach up to 96.0%, 94.8%, 95.0% and 95.0%, respectively in the practical ionic liquid spinning solution. The structure of [Emim]Dep after SED process was similar to that of pristine, indicating the benign stability during the SED process. Interestingly, the presence of saccharides was beneficial to the retention of metal ions because of the complexation between saccharides and metal ions. Moreover, the membrane fouling process and mechanism were also investigated by the determination of ion exchange capacity and the characterization of morphology and structure. Along this line, the corresponding cleaning strategy was raised and the performance of the membrane did not change notably within 5-times recycle. Thus, this work put forward a facile and cost-effective method for the one-step removal of saccharides and metal ions and the purification of ionic liquids, which could be popularized in the fields of biomass pretreatment and dissolution using ILs. © 2023, The Authors. All rights reserved.

关键词： Metal ions

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g-C3N4/BaTiO3/PVDF membrane photocatalytic degradation of tetracycline

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Journal of Industrial and engineering Chemistry 2025年

作者： Gan, Jiahao Wang, Huijie Li, Jinze Song, Xianghai Liu, Xin Jiang, Jizhou Huo, Pengwei Institute of Green Chemistry and Chemical Technology School of Chemistry & Chemical Engineering Jiangsu University Zhenjiang212013 China China Construction Eco-Environmental Protection Technology Co Ltd Jiangsu Suzhou215128 China School of Materials Science and Engineering State Key Laboratory of Green and Efficient Development of Phosphorus Resources Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Key Laboratory of Green Chemical Engineering Process of Ministry of Education Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Novel Catalytic Materials of Hubei Engineering Research Center Wuhan Institute of Technology Wuhan430205 China

Environmental pollution poses a major hurdle to sustainable development, and harnessing solar energy for water treatment has emerged as a promising solution. In this study, flexible, macroporous photocatalytic membranes were developed by combining photocatalysis with membrane separation technology and hydrogen peroxide (H2O2), aiming to improve the degradation efficiency of tetracycline (TC). The g-C3N4/BaTiO3/PVDF photocatalytic membranes were fabricated using a phase inversion method, which successfully addressed challenges such as catalyst agglomeration and recovery difficulties, surpassing traditional membrane separation methods. Additionally, the g-C3N4/BaTiO3 photocatalyst exhibited excellent compatibility with PVDF. Under 120 min of xenon lamp irradiation, the membranes achieved a TC degradation efficiency of 90.63 %. These membranes also demonstrated remarkable permeability, and they maintained high stability and reusability after five degradation cycles, showcasing their promising potential for photocatalytic water treatment applications. © 2025 The Korean Society of Industrial and engineering Chemistry

关键词： Membrane technology

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Modeling the axial hydrodynamics of gas-solid counter-current downers

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Particuology 2020年第3期18卷 135-143页

作者： Juanbo Liu Xinhua Liu Zhixin Zhang Hui Zhao Wei Ge State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100490China State Key Laboratory of Heavy Oil Processing China University of PetroleumQingdao 266555China

Gas-solid counter-current downer reactors,in which particles move downward in an upward gas flow,can achieve high solid concentration for high heat and/or mass transfer ***,the particles may reverse their direction or even be carried out of the reactor as the gas flow rate *** is closely related to "flooding" in counter-current *** energy minimization multiscale (EMMS) model well describes multiscale heterogeneity in gas-solid cocurrent upward *** is further developed to simulate gas-solid counter-current downward flows because similar heterogeneity can also be found in *** model characterizes well the axial hydrodynamics and predicts an inflexional voidage variation with superficial gas velocity in the fully developed *** is supported by a simulation based on computational fluid dynamics and the discrete element *** flooding predicted by the model agrees better with experiment than previous models.

关键词： Mathematical modeling Counter-current downer Flooding EMMS Mesoscale

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In-situ electro-deposition synthesis of MnO_(x)-NiCo_(2)O_(4) monolithic catalyst with rich phase interfaces

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Chinese Chemical Letters 2021年第1期32卷 21-24页

作者： Dongdong Wang Yingchao Du Xiaoze Wang Zhaxi Cuo Yunfa Chen State Key Laboratory of Multi-Phase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Resource Chemistry and Ecoenviromental Protection in Tibetan Plateau (Qinghai Nationalities University)State Ethnic Affairs CommissionSchool of Chemistry and Chemical EngineeringXining 810007China CAS Center for Excellence in Urban Atmospheric Environment Xiamen 361021China

A hierarchically structured MnO_(x)-NiCo_(2)O_(4) monolithic catalyst with rich phase interfaces was designed by a simple,eco-friendly and time-saving in-situ electro-deposition *** abundance of active oxygen species due to this rich phase interfaces contributed to the excellent benzene combustion performance of MnO_(x)-NiCo_(2)O_(4)-2:2 sample,oxidizing about 90% of benzene(T_(90)) at 198℃ under 12000 h^(-1) gaseous hourly space *** work shed new light on the design of excellent monolithic catalysts,which might pave the way for the industrialization of benzene combustion.

关键词： Rich phase interfaces In-situ electro-deposition Active oxygen species Benzene combustion MnO_(x)-NiCo_(2)O_(4)

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Thioamide construction via sulfur interrupted Brook rearrangement

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Green Synthesis and Catalysis 2024年

作者： Zhang, Shunmin Liao, Yanyan Jiang, Xuefeng State Key Laboratory of Molecular and Process Engineering Institute of Eco-Chongming School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China School of Chemistry and Chemical Engineering Henan Normal University Henan Xinxiang 453007 China

Thioamide was straightforwardly constructed via a chemoselective one-pot synthesis, employing acylsilanes in conjunction with diverse amines and elemental sulfur. The driving force of thioamidation stemmed from silane migration, a synergy process of lone pair electron attack from amine and more stable Si–O bond formation, followed by the nucleophilic activation of elemental sulfur via carbanion intermediate. The leaving trend of trimethylsilanolate and nucleophilicity of linear polysulfur facilitated the cleavage of the S–S bond affording thioamide. A variety of sensitive functional groups, including unprotected hydroxyl, carboxyl and difluoride substitution moieties, are well tolerated under the reaction conditions. Site-selective introduction of thioamide was further demonstrated for the biologically active molecule linkage, displaying the advantages compared with the conventional Lawesson's reagent. © 2024 Fudan University

关键词： Acylsilane Chemoselectivity Fast linkage Sulfur Thioamide

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Architecture and evolution of the lithosphere beneath the northern South China sea: Implications for plate-edge lithospheric thinning and rifting

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Fundamental Research 2025年

作者： Ma, Qiang Qian, Sheng-Ping Xu, Yi-Gang Yang, Fan Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) Guangzhou 511458 China State Key Laboratory of Deep Earth Process and Resources (DEEPER) Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China

Passive margins formed by continental rifting and oceanic spreading exhibit a wide range of characteristics, many of which remain poorly understood. In this study, we investigate the continent-ocean transition (COT) of the South China Sea (SCS) to elucidate the tectonic-magmatic processes involved in continental thinning and rifting. We present new in situ analyses of water, chemical, and Sr isotopic compositions of volcanic glasses and plagioclases, alongside the ages and Hf isotope compositions of zircons from the SCS. Our isotopic data reveal significant inter- and intra-crystalline disequilibria in plagioclase phenocrysts, suggesting a complex history of mantle-derived magmas interacting with the continental crust. Geochemical variability in the plagioclases and the presence of old inherited zircons indicate that mantle magmas were contaminated by crustal material. The ages (ranging from Cretaceous to Archean) and Hf isotopic signatures of the zircons are similar to those found in the Cathaysian block of Southeast China, supporting the presence of continental lithosphere beneath the northern SCS. The COT is characterized by a sharp juxtaposition of continental crust and igneous oceanic crust, and its structural features differ from the classic magma-poor or magma-rich passive-margin models. The X_H2O conditions inferred for basalt generation during continental rifting and SCS spreading imply that the underlying mantle beneath the SCS was hydrous, which may have triggered the weakening and removal of the lithospheric root, probably due to the multiple subductions of oceanic plates since the Cretaceous. Our findings provide key evidence for the role of hydro-induced lithospheric weakening associated with nearby subduction zones in the processes of continental thinning and breakup in the SCS. © 2025

关键词： Continental lithospheric thinning and rifting Lithosphere structure Mantle transition zone South china sea Water

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Stable 3D Deep Convolutional Autoencoder Method for Ultrasonic Testing of Defects in Polymer Composites

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Polymers 2024年第11期16卷 1561页

作者： Liu, Yi Yu, Qing Liu, Kaixin Zhu, Ningtao Yao, Yuan Institute of Process Equipment and Control Engineering Zhejiang University of Technology Hangzhou310023 China The State Key Laboratory for Electronic Testing Technology North University of China Taiyuan030051 China Xi’an Zhanshi Testing & Engineering Co. Ltd. Xi’an710000 China Department of Chemical Engineering National Tsing Hua University Hsinchu300044 Taiwan

Ultrasonic testing is widely used for defect detection in polymer composites owing to advantages such as fast processing speed, simple operation, high reliability, and real-time monitoring. However, defect information in ultrasound images is not easily detectable because of the influence of ultrasound echoes and noise. In this study, a stable three-dimensional deep convolutional autoencoder (3D-DCA) was developed to identify defects in polymer composites. Through 3D convolutional operations, it can synchronously learn the spatiotemporal properties of the data volume. Subsequently, the depth receptive field (RF) of the hidden layer in the autoencoder maps the defect information to the original depth location, thereby mitigating the effects of the defect surface and bottom echoes. In addition, a dual-layer encoder was designed to improve the hidden layer visualization results. Consequently, the size, shape, and depth of the defects can be accurately determined. The feasibility of the method was demonstrated through its application to defect detection in carbon-fiber-reinforced polymers. © 2024 by the authors.

关键词： Convolution

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