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Bioactive Materials 2021年第10期6卷 3300-3313页

作者： Jimin Zhang Meigui Deng Xiaoguang Shi Chuangnian Zhang Xiongwei Qu Xiuli Hu Weiwei Wang Deling Kong Pingsheng Huang Hebei Key Laboratory of Functional Polymers National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources UtilizationSchool of Chemical Engineering and TechnologyHebei University of TechnologyTianjin300130China Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical EngineeringChinese Academy of Medical Sciences and Peking Union Medical CollegeTianjin300192China State Key Laboratory of Medicinal Chemical Biology College of Life SciencesNankai UniversityTianjin300071China

*** Chemotherapy is the traditional treatment for clinical cancer patient[1,2].However,the therapeutic effect is often severely limited by the multidrug resistance(MDR)[3,4],which was commonly mediated by inactivating drugs,increasing efflux,stimulating DNA repair mechanisms,and/or activating detoxification pathways[5-7].Recent studies are committing to develop reasonable strategies for intervention of the molecular pathways mediating MDR,of which P-glycoprotein(P-gp)has been widely investigated[8].So far,several kinds of P-gp inhibitors,including verapamil[9],vitamin E[10],cyclosporin A[11],and small interfering RNA(siRNA)[12].

关键词： NO prodrug Supramolecular hydrogel Oxidative stress Multidrug resistance Synergistic therapy

Poly(Ionic Liquid) Boosts Overall Performance of Electrocatalytic Reduction of Low Concentration of CO Gas

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SSRN 2022年

作者： Duan, Guo-Yi Li, Xiao-Qiang Ding, Guang-Rong Guan, Peng-Xin Xu, Bao-Hua Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Electrocatalytic reduction of CO (CORR) provides a feasible way for not only CO2 conversion via tandem CO2-to-CO-to-C2+ process but also CO utilization from industrial exhaust gases. In this work, poly(ionic liquid) modified Cu catalyst (Cu@PIL) was employed as the electrocatalyst to convert low concentration CO gas to high-value C2+ products. An over 90% faradaic efficiency of C2+ products (FEC2+) was obtained at a constant current density of 125.0 mA cm–2 within a broad range of feedstock concentrations from 100.0 to 40.0 vol%. Remarkably, excellent comprehensive performance was achieved with feeding CO gas as less as 5.0 vol%, delivering a high FEC2+ of 71.1% with high CO conversion (67.4%) and high energetic efficiency (29.1%). Mechanistic studies suggest the local enrichment of CO via strong adsorption and accelerated mass transfer by porous PIL layer as well as the suppression of hydrogen evolution reaction enables the CO-to-C2+ transformation with diluted CO gas. © 2022, The Authors. All rights reserved.

关键词： Ionic liquids

Screening and Mechanism of Bimetallic Catalysts for Electrosynthetizing CO 2 and N 2 to Urea

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SSRN 2022年

作者： Li, Kun Wang, Yanlei He, Hongyan Lu, Junfeng Ding, Weilu Huo, Feng Zhang, Suojiang Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Electrocatalytic N2 and CO2 to urea by C-N coupling is an environment-friendly alternative to circumvent the Haber-Bosch process. Recent experiments have proved that bimetallic catalysts (BMC) defective configurations can be synthesized. However, diverse element combinations and unclear catalyzing mechanisms make the rational design face challenges. Herein, in-depth calculations were performed to investigate the catalytic performance of BMCs anchored on N-doped graphene. Through a proposed two-step screening strategy and investigation of the free energy of the reaction, the Ti-Co@NC catalyst exhibits an ultra-low onset potential of 0.23 V to catalyze the reaction efficiently. Furthermore, from the molecular electrostatic potential map and dual descriptor diagrams, it is identified that CO prefers to tilt-attack *N2 to promote C-N coupling effectively. The reaction process can be further enhanced by controlling the transferred electrons between two metallic sites. These results increase the C-N coupling understanding in the urea electrosynthesis and inspire the rational catalysts design. © 2022, The Authors. All rights reserved.

关键词： Urea

Enhanced nitrogen removal upon the addition of volatile fatty acids from activated sludge by combining calcium peroxide and low-thermal pretreatments

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Journal of Environmental Sciences 2021年第10期33卷 145-151页

作者： Jiajun Sun Junxue Song Wei Fang Hongbin Cao Beijing Engineering Research Center of Process Pollution Control Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China China Xiong’an Group Ecological Construction Investment Co.Ltd. Baoding 071700China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China School of Chemistry and Environmental Engineering China University of Mining and TechnologyBeijing 100083China

This study investigated a combined low-thermal and CaO_(2)pretreatment to enhance the volatile fatty acid(VFA)production from waste activated sludge(WAS).The fermentative product was added to a sequencing batch reactor(SBR)as an external carbon source to enhance nitrogen *** results showed that the combined pretreatment improved WAS solubilization,releasing more biodegradable substrates,such as proteins and polysaccharides,from TB-EPS to LB-EPS and *** maximum VFA production of 3529±188 mg COD/L was obtained in the combined pretreatment(0.2 g CaO_(2)/g VS+70℃for 60 min),which was 2.1 and 1.4-fold of that obtained from the sole low-thermal pretreatment and the control test,***,when the fermentative liquid was added as an external denitrification carbon source,the effluent total nitrogen decreased to Class A of the discharge standard for pollutants in rural wastewater treatment plants in most areas of China.

关键词： Waste activated sludge Anaerobic digestion Calcium peroxide Low-thermal pretreatment Volatile fatty acids

Highly aligned lithiophilic electrospun nanofiber membrane for the multiscale suppression of Li dendrite growth

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eScience 2022年第6期2卷 655-665页

作者： Jianan Wang Qianyue Ma Shiyi Sun Kai Yang Qiong Cai Emilia Olsson Xin Chen Ze Wang Amr MAbdelkader Yinshi Li Wei Yan Shujiang Ding Kai Xi Department of Environmental Science and Engineering Xi'an Key Laboratory of Solid Waste Recycling and Resource RecoverySchool of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049China Department of Applied Chemistry School of ChemistryUniversity Engineering Research Center of Energy Storage Materials and Chemistry of Shaanxi ProvinceState Key Laboratory for Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an 710049China Department of Chemical and Process Engineering Faculty of Engineering and Physical SciencesAdvanced Technology InstituteUniversity of SurreyGuildford GU27XHSurreyEnglandUK Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'anShaanxi710049China Advanced Research Center for Nanolithography Science Park 1061098 XGAmsterdamthe Netherlands Institute of Physics and Institute for Theoretical Physics University of AmsterdamPostbus 944851090 GLAmsterdamthe Netherlands Faculty of Science and Technology Bournemouth UniversityTalbot CampusFern BarrowPooleEnglandBH125BBUK

Using inorganic fibrous membranes as protective layers has yielded success in suppressing dendrite ***,conventional fibrous membranes usually have large voids and low affinity for Li,promoting inhomogeneous charge distribution and allowing some dendrites to ***,we introduce a highly aligned TiO_(2)/SiO_(2)(A-TS)electrospun nanofiber membrane as a protective layer for the Li metal *** A-TS membrane is fabricated by a custom-made electrospinning system with an automatic fiber alignment collector that allows control of the fibers’*** the scale of the individual fibers,their high binding energies with Li can attract more“dead”Li by reacting with the SiO_(2) component of the composite,avoiding uncontrollable deposition on the metal *** the membrane scale,these highly ordered structures achieve homogeneous contact and charge distribution on the Li metal surface,leaving no vulnerable areas to nucleate dendrite ***,the excellent mechanical and thermal stability properties of the A-TS membrane prevent any potential puncturing by dendrites or thermal runaway in a ***,an A-TS@Li anode exhibits stable cycling performance when used in both Li-S and Li-NCM811 batteries,highlighting significant reference values for the future design and development of high-energy-density metal-based battery systems.

关键词： Aligned structure Protective layerLi dendrite Lithium sulfur battery Li metal battery

Efficient fluidization intensification process to fabricate in-situ dispersed(SiO+G)/CNTs composites for high-performance lithium-ion battery anode applications

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Particuology 2021年第3期19卷 84-90页

作者： Hebang Shi He Zhang Chaoquan Hu Shaofu Li Maoqiao Xiang Pengpeng Lv Qingshan Zhu State key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Science Beijing 100049China College of Materials and Metallurgy Guizhou UniversityGuiyang 550025China Nanjing IPE Institute of Green Manufacturing Industry Nanjing 211135China

An efficient fluidization process intensification method was proposed to prepare carbon nanotube(CNT)-enhanced high-performance SiO anodes for lithium-ion *** introduction of graphite particles decreased bonding among SiO particles,inhibiting agglomerate growth and enhancing ***(SiO+G)/CNTs composites were synthesized by fluidized bed chemical vapor deposition with the CNTs grown in-situ,which ensured uniform dispersion and superior anchoring of the *** in-situ-grown CNTs and stacked graphite ensured excellent structural stability and *** synthesized(SiO+G)/CNTs delivered a stable reversible capacity of 466 mAh g^(−1) after 125 cycles and a capacity of∼200 mAh g^(−1) at 2 A g^(−1).The charging results indicated that the 3D network structure comprising CNTs and graphite not only effectively buffered the electrode expansion but also greatly improved mechanical flexibility.

关键词： process intensification Fluidized bed chemical vapor deposition Carbon nanotubes Silicon suboxide anode

Detection of Type Ⅰ and Ⅲ collagen in porcine acellular matrix using HPLC-MS

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Regenerative Biomaterials 2020年第6期7卷 577-582页

作者： Yang Zhang Yi Chen Bo Zhao Jianping Gao Leilei Xia Fangyu Xing Yingjun Kong Yongchao Li Guifeng Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringCASBeijing 100190China School of Life Science and Technology Henan Institute of Science and TechnologyXinxiangHenan 453003China Beijing Biosis Healing Biological Technology Co. LtdBeijing 100026China

Acellular matrix(ACM)has been widely used as a *** the main component of ACM,collagen type and content show influence on the material *** this research,the collagen in ACM from different tissues of pig were determined by detection of marker *** marker peptides of Type Ⅰ and Ⅲ collagen were identified from the digested collagen standards using ions trap mass spectrometry(LCQ).The relationship between the abundance of marker peptide and collagen concentration was established using triple quadrupole mass spectrometer(TSQ).The contents of Type Ⅰ and Ⅲ collagen in ACM from different tissues were *** method was further verified by hydroxyproline *** results showed that,the sum of Type Ⅰ and Ⅲ collagen contents in the ACM from small intestinal submucosa,dermis and Achilles tendon of pig were about 87.59,81.41 and 61.13%,respectively,which were close to the total collagen contents in these *** results proved that this method could quantitatively detect the collagen with different types in the ACM of various tissues.

关键词： HPLC-MS marker peptides acellular matrix collagen

Hierachical Hollow Silicalite Encapsulated Cu-Fe Oxides: Efficient Catalyst for Selectively Oxidative Depolymerization of Lignin to Diethyl Meleate

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SSRN 2024年

作者： Li, Lixia Kong, Juanhua Long, Jinxing Cai, Zhengping Zeng, Qiang Zhan, Yingying Liu, Sijie He, Hongyan Li, Xuehui School of Chemistry and Chemical Engineering Pulp & Paper Engineering State Key Laboratory of China South China University of Technology Guangdong Guangzhou510640 China College of Chemical Engineering Fuzhou University Fujian Fuzhou350002 China Beijing Key Laboratory of Ionic Liquids Clean Process Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Henan Key Laboratory of Green Chemistry Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Henan Xinxiang453007 China

Heterogeneously catalytic depolymerization of lignin into value-added biochemicals are imperative, yet challengeable by the limited mass transport of lignin and the non-ideal spatial distributions of active sites in catalysts. Herein, a series of polycrystalline materials with Cu and Fe oxides encapsulated in hierarchical hollow nano silicalite (Cux-Fey@HhNS) were fabricated for the step-wise oxidative depolymerization of lignin into diethyl maleate (DEM). 92.0% conversion of lignin with an exceptional DEM yield of 31.2 wt.% and selectivity of 70.7% was achieved at 150 °C for 24 h using Cu2.5-Fe2.2@HhNS. This superior performance of lignin selective conversion should be attributed to the enhanced tandem processes of lignin Cα-Cβ bonds deconstruction by the framework Cu2+, and the subsequently monomers’ ring-cleavage by the isolated framework Fe3+ which is not observable in the single crystal structured catalysts. The results of catalyst characterization further revealed that the well-balanced micro-/mesoporosity ratio of Cux-Fey@HhNS facilitates the diffusion of lignin macromolecule/products, contributing to the excellent DEM yield and selectivity as well. Mechanistic investigation also illustrated that the process proceeds via a single electron transfer pathway. Therefore, this work provides new insights into lignin valorization to bulk chemicals as opposed to traditional petroleum-based routes. © 2024, The Authors. All rights reserved.

关键词： Lignin

Efficient and Emission-Reduced Recovery of High-Purity Copper from Waste Enameled Copper Wires

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SSRN 2024年

作者： Ma, Shengyue Xing, Peng Li, Huiquan Wang, Chenye Liu, Mingkun Xu, Beibei CAS Key Laboratory of Green Process and Engineering National Engineering Research Center of Green Recycling for Strategic Metal Resources Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Innovation Academy for Green Manufacture Institute Chinese Academy of Sciences Beijing100190 China State Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences 865 Changning Road Shanghai200050 China

The escalating demand for refined copper has intensified research into the recycling of copper-based solid waste, exemplified by the recovery of copper from waste enameled copper wires (WECWs). Despite its potential, the pyrolysis process for WECWs is hindered by embrittlement, diminishing both recycling yield and quality. Our study pioneers the elucidation of the embrittlement mechanism during WECWs pyrolysis through atom probe tomography and first-principles calculations, revealing that hydrogen, a byproduct of paint film pyrolysis, accumulates at copper grain boundaries, inducing embrittlement by reducing adhesion energy. We introduce two innovative strategies to mitigate hydrogen-induced embrittlement: vacuum pyrolysis and enhanced N2 flow. These approaches not only significantly curb copper degradation but also achieve remarkable pyrolysis efficiencies of 92.79% and 91.4%, respectively, at temperatures 50 ºC lower than conventional methods. Our findings provide crucial theoretical insights into the embrittlement process and offer effective recovery strategies for copper from solid waste. © 2024, The Authors. All rights reserved.

关键词： Recycling

Ferric Ion Driven Assembly of Catalase-like Supramolecular Photosensitizing Nanozymes for Combating Hypoxic Tumors

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Advanced Materials 2020年第51期59卷 23428-23438页

作者： Li, Yongxin Sun, Pan Zhao, Luyang Yan, Xuehai Ng, Dennis K. P. Lo, Pui-Chi Department of Biomedical Sciences City University of Hong Kong Tat Chee Avenue Hong Kong Kowloon China CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Department of Chemistry The Chinese University of Hong Kong N.T. Hong Kong Shatin China

A facile approach to assemble catalase-like photosensitizing nanozymes with a self-oxygen-supplying ability was developed. The process involved Fe3+-driven self-assembly of fluorenylmethyloxycarbonyl (Fmoc)-protected amino acids. By adding a zinc(II) phthalocyanine-based photosensitizer (ZnPc) and the hypoxia-inducible factor 1 (HIF-1) inhibitor acriflavine (ACF) during the Fe3+-promoted self-assembly of Fmoc-protected cysteine (Fmoc-Cys), the nanovesicles Fmoc- Cys/Fe@Pc and Fmoc-Cys/Fe@Pc/ACF were prepared, which could be disassembled intracellularly. The released Fe3+ could catalyze the transformation of H2O2 enriched in cancer cells to oxygen efficiently, thereby ameliorating the hypoxic condition and promoting the photosensitizing activity of the released ZnPc. With an additional therapeutic component, Fmoc-Cys/Fe@Pc/ACF exhibited higher in vitro and in vivo photodynamic activities than Fmoc-Cys/Fe@Pc, demonstrating the synergistic effect of ZnPc and ACF. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

关键词： Self assembly