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Novel membrane separation technologies and membrane processes

Frontiers of Chemical Science and engineering 2021年第4期15卷 717-719页

作者： Yanying Wei Gongping Liu Jianquan Luo Libo Li Zhi Xu School of Chemistry&Chemical Engineering South China University of TechnologyGuangzhou 510640China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringUniversity of Chinese Academy of SciencesChinese Academy of SciencesBeijing 100190China State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China

Membrane-based separation technologies have received increasing attention attributing to lots of advantages such as the low energy consumption,easy operation,and environmental *** recent years,the emergence of novel two-dimensional(2D)materials,such as graphene,provides a new opportunity for membrane ***,Frontiers of Chemical Science and engineering(FCSE),one of the transactions of Chinese Academy of engineering,organized this Special Issue aiming to illustrate some of the exciting progresses and achievements in the relevant research fields.

关键词： development. separation friend

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Biodegradable and Biorecyclable Organic Glass

Research Square

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Research Square 2022年

作者： Xing, Ruirui Yuan, Chengqian Fan, Wei Ren, Xiaokang Yan, Xuehai State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences China

Glass is ubiquitous in life and widely used in various fields. However, there is an urgent need to develop biodegradable and biorecyclable glasses that have a minimal environmental footprint toward a sustainable society and a circular materials economy. Here, we report a family of eco-friendly organic glasses of biological origin fabricated using biologically-derived amino acids or peptides through the classic heating-quenching procedure. Amino acids and peptides with chemical modification at their ends are found able to form a supercooled liquid before decomposition and eventually glass upon quenching. These developed glasses exhibit excellent glass-forming ability and optical characteristics and are amenable to 3D printed additive manufacturing and mould casting. Crucially, the glasses show biocompatibility, biodegradability and biorecyclability beyond the currently used commercial glasses and plastic materials. © 2022, CC BY.

关键词： Biodegradability

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Strategic Gradient Transmission With Targeted Privacy-Awareness in Model Training: A Stackelberg Game Analysis

IEEE Transactions on Artificial Intelligence

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IEEE Transactions on Artificial Intelligence 2024年第9期5卷 4635-4648页

作者： Sun, Hezhe Wang, Yufei Yang, Huiwen Huo, Kaixuan Li, Yuzhe Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Shenyang110004 China Liaoning ATS Intelligent Transportation Technology Company Ltd. Research Institute Shenyang110004 China The Hong Kong University of Science and Technology Department of Electronic and Computer Engineering Hong Kong999077 Hong Kong

Privacy-aware machine learning paradigms have sparked widespread concern due to their ability to safeguard the local privacy of data owners, preventing the leakage of private information to untrustworthy platforms or malicious third parties. This article focuses on characterizing the interactions between the learner and the data owner within this privacy-aware training process. Here, the data owner hesitates to transmit the original gradient to the learner due to potential cybersecurity issues, such as gradient leakage and membership inference. To address this concern, we propose a Stackelberg game framework that models the training process. In this framework, the data owner's objective is not to maximize the discrepancy between the learner's obtained gradient and the true gradient but rather to ensure that the learner obtains a gradient closely resembling one deliberately designed by the data owner, while the learner's objective is to recover the true gradient as accurately as possible. We derive the optimal encoder and decoder using mismatched cost functions and characterize the equilibrium for specific cases, balancing model accuracy and local privacy. Numerical examples illustrate the main results, and we conclude with expanding discussions to suggest future investigations into reliable countermeasure designs. © 2020 IEEE.

关键词： Game theory

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A Facile Li_(2)TiO_(3) Surface Modification to Improve the Structure Stability and Electrochemical Performance of Full Concentration Gradient Li-Rich Oxides

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Energy & Environmental Materials 2024年第3期7卷 41-48页

作者： Naifang Hu Yuan Yang Lin Li Yuhan Zhang Zhiwei Hu Lan Zhang Jun Ma Guanglei Cui Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Institute of Materials Science and Engineering Ocean University of ChinaQingdao 266100China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Max Planck Institute for Chemical Physics of Solids Nothnitzer Strasse 40Dresden D-01187Germany CAS Key Laboratory of Green Process and Engineering Beijing Key Laboratory of Ionic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Shandong Energy Institute Qingdao 266101China

Full concentration gradient lithium-rich layered oxides are catching lots of interest as the next generation cathode for lithium-ion batteries due to their high discharge voltage,reduced voltage decay and enhanced rate performance,whereas the high lithium residues on its surface impairs the structure stability and long-term cycle ***,a facile multifunctional surface modification method is implemented to eliminate surface lithium residues of full concentration gradient lithium-rich layered oxides by a wet chemistry reaction with tetrabutyl titanate and the post-annealing *** realizes not only a stable Li_(2)TiO_(3)coating layer with 3D diffusion channels for fast Li^(+)ions transfer,but also dopes partial Ti^(4+)ions into the sub-surface region of full concentration gradient lithium-rich layered oxides to further strengthen its crystal ***,the modified full concentration gradient lithium-rich layered oxides exhibit improved structure stability,elevated thermal stability with decomposition temperature from 289.57℃to 321.72℃,and enhanced cycle performance(205.1 mAh g^(-1)after 150 cycles)with slowed voltage drop(1.67 mV per cycle).This work proposes a facile and integrated modification method to enhance the comprehensive performance of full concentration gradient lithium-rich layered oxides,which can facilitate its practical application for developing higher energy density lithium-ion batteries.

关键词： full concentration gradient lithium-rich layered oxides structure stability surface modification

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Fluidized bed combustion of high water content alcohol extracted herb residue and the impacts of blending wasted activated coke

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Carbon Resources Conversion 2023年第1期6卷 11-19页

作者： Xuan Liu Xinyu Zhu Wenyan Wang Bowen Shi Guangyi Zhang Jianling Zhang Jiancheng Yang Yanming Shen School of Chemical Engineering Shenyang University of Chemical TechnologyShenyang 110142LiaoningChina School of Ecology and Environment Beijing Technology and Business UniversityBeijing 100048China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China China Power Engineering Consulting Group Co. LtdBeijing 100120China

Combustion of herb residues(HRs)for heat recovery is a good way for their utilization,but there exists such a problem as high concentration NOx emission in flue *** alcohol extracted herb residue(AEHR),one special type of HRs,was chosen as the object and was subjected to immediate combustion in a fluidized bed reactor to investigate the characteristics of its resulting NOx *** results showed that,most of the NOx in the flue gas was produced from the char nitrogen(C-N);as the fuel water content increased,the NOx emission concentration exhibited a trend of first decreasing and then increasing;and a properly low combustion temperature inhibited the NOx emission upon the premise of ensuring full *** staging combustion was adopted to effectively control NOx:the NOx emission concentration in the flue gas was reduced to 296 mg⋅m􀀀3 and the NOx emission reduction rate reached 46.51%compared to conventional ***-combustion by blending wasted activated coke(WAC)into the AEHR helped both stabilize the combustion state and reduce further the NOx *** the blending ratio of WAC fell within a proper range of 20-30%,the NOx emission concentration in the flue gas was as low as 231.4 mg⋅m􀀀*** addition to the dilution effect of the combustion flue gas of the blended WAC,the local reducing atmosphere caused by its incomplete combustion as well as its strong absorbability and catalytical effect was accountable for the further decrease of the NOx emission concentration.

关键词： Alcohol extracted herb residue Wasted activated coke Fluidized bed combustion NOx Air staging combustion

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BaTiO_(3)/Polyurethane Dielectric Composites with Diels-Alder Bond for Improved Self-Healing Properties

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Journal of Renewable Materials 2022年第9期10卷 2355-2364页

作者： unlong Yao Wei Nie Zhengguang Sun Huan Yang Yu Guan Lin Gao Xueliang Jiang Mujie Guo Chuanxi Xiong Hubei Key Laboratory of Plasma Chemistry and Advanced Materials School of Materials Science and EngineeringWuhan Institute of TechnologyWuhan430205China Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei UniversityWuhan430062China Key Laboratory of Green Chemical Engineering Process of Ministry of Education Wuhan Institute of TechnologyWuhan430205China School of Chemistry and Environmental Engineering Jianghan UniversityWuhan430056China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China

In general,self-healing dielectric composites are mainly composed of polar hydrogen bonds,which have high hydrophilicity and are unsuitable for humid *** composite with Diels-Alder(D-A)bond contains covalent bonds,it can be adopted as an efficient self-healing ***,we construct self-healing barium titanate(BT)/polyurethane(PU)dielectric composites by adopting PU with D-A bond as matrix(BT/PU-DA).The prepared 10%BT/PU-DA composite exhibits superior self-healing ability than that of ***,its dielectric constant can reach 9.3 with a loss of only 0.04 at 1000 Hz and maintain 93%repair efficiency of tensile *** experimental analysis suggests the introduction of D-A bond can enhance the thermostability and self-healing ability of BT/PU-DA *** addition,the incorporation of BT nanoparticles and D-A bond in the self-healing composite contributes to the lower dielectric loss and excellent tensile strength after *** adopted strategy is a promising and facile approach to develop highly efficient selfhealing dielectric material,which will be conducive to reuse and sustainable development of the electronic packaging material in aqueous medium or wet environment.

关键词： Diels-Alder bond self-healing dielectric properties tensile strength polyurethane

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Electroreduction of carbon dioxide to multi-electron reduction products using poly(ionic liquid)-based Cu-Pd catalyst

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Fundamental Research 2022年第6期2卷 937-945页

作者： Xiao-Qiang Li Guo-Yi Duan Xian-Xia Yang Li-Jun Han Bao-Hua Xu Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China National Fundamental Research Laboratory of New Hazardous Chemicals Assessment and Accident Analysis Institute of Applied ElectrochemistryBeijing University of Chemical TechnologyBeijing 100029China

Electrocatalytic reduction of CO_(2)(CO_(2)RR)to multi-electron(>2e–)products provides a green and sustainable route for producing fuels and *** the second metal element is a feasible strategy for"managing"the key intermediate on Cu-based materials to further improve the CO_(2)RR catalytic *** this work,palladium,which promises the generation of CO,was introduced into the poly(ionic liquid)-based copper hybrid(Cu@PIL)to construct a novel Cu-Pd bimetallic electrocatalyst(Cu@PIL@Pd).Remarkably,with a small dosage of palladium(2.0 mol%compared with Cu),a high faradaic efficiency(FE)for C_(2+)products(68.7%)was achieved at–1.01 V(with respect to the reversible hydrogen electrode(RHE),the same below)with a high partial current density of 178.3 mA cm^(-2).Meanwhile,high selectivity towards CH4(FE=42.5%)and corresponding partial current density of 172.8 mA cm^(-2)were obtained on the same catalyst at–1.24 V,signifying a significant potential-dependent *** studies reveal that both copper and palladium oxides are reduced to metallic states during the CO_(2)*** presence of the adjoint copper phase and the highly dispersed electrostatic layer promote the generation of CO on the palladium components(both the PdO_(2)phase and the Pd(II)site).Besides,the local CO^(*)was enriched by the significant diffusion resistance of CO in the PIL *** spillover of CO^(*)from Pd sites to the adjoint Cu sites,accompanied by the increased local concentration of CO^(*)around Cu sites,accounted for the observed good CO_(2)RR catalytic performance,especially the high C_(2+)product selectivity.

关键词： CO_(2)conversion Bimetallic catalyst Cu-Pd material Electrolysis High-value products

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Unlocking Superlubricity: Ionic Liquids Meet Perfluorocarbons

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Nano letters 2025年第23期25卷 2025 Jun 2页

作者： Ruirui He Yumiao Lu Ju Liu Yanlei Wang Wei-Lu Ding Kaixuan Li Yibo Wang Hongyan He Department of Chemistry Beijing Technology and Business University Beijing 100048 China. Beijing Key Laboratory of Solid State Battery and Energy Storage Process State Key Laboratory of Mesoscience and Engineering CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China. School of Chemical Engineering University of Chinese Academy of Sciences Beijing 100190 China. Longzihu New Energy Laboratory Zhengzhou Institute of Emerging Industrial Technology Zhengzhou 450000 China.

Superlubricity, a state of near-zero friction, offers transformative potential for minimizing energy dissipation and mechanical wear. However, realizing stable superlubricity has remained challenging due to difficulties in sustaining reliable lubricant structures. In this work, we present a feasible and straightforward strategy that integrates ionic liquids with trace amounts of low-surface-energy perfluorocarbon, yielding a robust and highly ordered monolayer film. This composite system achieves an unprecedented friction coefficient as low as 10, unlocking superlubricity. Furthermore, we clarify that the exceptional lubrication performance arises from precise modulation of adhesion forces at the molecular level. Our findings not only demonstrate a practical pathway to stable superlubricity but also provide fundamental insights into the underlying friction mechanisms, guiding the rational design of advanced lubricant systems with extraordinary performance and durability, which are particularly suitable for graphite-based microelectromechanical devices.

关键词： lubrication mechanism monolayer ionic liquids ordered structure superlubricity

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Microwave-assisted pyrolysis of waste plastics for their resource reuse:A technical review

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Carbon Resources Conversion 2023年第3期6卷 215-228页

作者： Xuan Hu Dachao Ma Guangyi Zhang Mengxue Ling Qiaoling Hu Kangyi Liang Jiacheng Lu Yifan Zheng School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China School of Ecology and Environment Beijing Technology and Business UniversityBeijing 100048China Key Laboratory of Environmental Protection Guangxi UniversityNanning 530004China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Rapidly increasing plastics have been used and finally become wastes,resulting in increasing pressures to the ***-assisted pyrolysis is a promising technology for converting organic wastes as waste plastics into value-added *** present,many works on microwave-assisted pyrolysis of plastics have been published,but the achievements,challenges,and future directions of microwave-assisted pyrolysis of waste plastics have not been well summarized and *** this work,the principle of microwave-assisted pyrolysis technology is ***,the progress of its application to recover useful products from plastics is reviewed and discussed in terms of key parameters including microwave power,pyrolysis temperature,reaction time,types of catalyst,microwave absorbents and feedstock mixing ***,the yields and properties of the produced oil,gas and char are correlated with the process ***,the existing challenges and prospects of disposal/reuse of waste plastics by microwave-assisted pyrolysis technology are discussed.

关键词： Review Waste plastics Microwave-assisted pyrolysis Challenges

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Mn-MOF derived manganese sulfide as peroxymonosulfate activator for levofloxacin degradation: An electron-transfer dominated and radical/nonradical coupling process

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Journal of Environmental Sciences 2023年第8期130卷 197-211页

作者： Xiaolin Han Wei Zhang Shuai Li Congyu Cheng Qi Yu Qilong Jia Lei Zhou Guangli Xiu State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Environmental Protection Key Laboratory on Environmental Standard and Risk Management of Chemical Pollutants East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Tongji UniversityShanghai 200092China

Recently,transitionmetal sulfides have attractedmuch attention due to their better catalytic capacities as peroxymonosulfate(PMS)activator than their metal oxide ***,the systematic studies on PMS activation using transition metal sulfides are still *** this work,manganese sulfide(MnS)materials were synthesized via a MOFs-derived method and utilized for PMS activation to degrade levofloxacin(LVF)in water for the first *** expected,MnS exhibited remarkable LVF degradation efficiency by PMS activation,whichwas distinctly higher than Mn_(2)O_(3).The results of quenching experiments,electro spin resonance identification and electrochemical tests indicated that electron-transfer progress was the dominant mechanism inα-MnS/PMS ***,the presence of ^(1)O_(2) and radicals further became the removal of LVF byα-MnS/PMS system into a radical/nonradical coupling *** superior electrical conductivity ofα-MnS thanα-Mn_(2)O_(3) was revealed by DFT calculations,which resulted in the higher catalytic capacity ofα-*** result of XPS also indicated the S species in MnS accelerated the recycle of Mn(IV)/Mn(II)and then promoted the generation of ***,the influence of various environmental conditions on LVF removal and the reusability ofα-MnS were also investigated,which demonstrated the high application potential ofα-MnS/PMS ***,six possible pathways of LVF oxidation in the system were proposed based on the identified byproducts and their ecotoxicity was evaluated with ECOSAR *** work promotes the fundamental understanding of PMS activation byα-MnS and provides useful information for practical application of manganese sulfide in water treatment.

关键词： MnS Metal organic frameworks PMS Levofloxacin Electron-transfer pathway

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