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Industrialization progress of lignocellulosic ethanol

Systems Microbiology and Biomanufacturing 2022年第2期2卷 246-258页

作者： Liangliang Wang Muhammad Bilal co.gping Tan Xirui Jiang Fangfang Li Linyi Jiayun Biotechnology co. Ltd.Linyi 273306ShandongChina Department of biological Chemical engineering College of Chemical Engineering and Materials ScienceTianjin University of Science and TechnologyTianjin 300457China co.lege of Biotechnology Tianjin University of Science and TechnologyTianjin 300457China School of Food Science and engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353ShandongChina wuxi jiangdayizhong biological engineering co. Ltd.Wuxi 214062JiangsuChina

Lignocellulose is an abundant and renewable biomass that is mainly co.posed of cellulose,hemicellulose and *** development and utilization of lignocellulosic ethanol is an efective way to solve the energy problem/crises,In addition,lignocellulosic ethanol industry can play a signifcant role in co.trolling environmental pollution and extending agricultural industrial chain;however,it has not been able to realize large-scale industrialization due to the limitation of both biotechnology and *** review frst introduces industrialization status of lignocellulosic ethanol,and then focuses on the progress of practical technology and analyzing the eco.omic feasibility of the seco.d-generation bioethanol plant;fnally,the future development trend of the industry was *** summarize,co.tinuous technological innovation is needed in vital steps such as pretreatment,enzymatic hydrolysis,and ***,for making the cellulosic ethanol industry truly eco.omically co.petitive,we also need to achieve interdisciplinary,cross-domain integration innovation,such as the co.struction of raw material co.lection and storage system,in situ producing special enzyme system,high-value utilization of raw material co.ponents,developing a closely integration of biomass refnery with mature equipment and overall industrialization programs,*** is hoped that this review can provide a useful reference for the industrialization of seco.d-generation bioethanol.

关键词： Lignocellulosic ethanol Industrialization Technology Eco.omic analysis

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Surface-state co.trolled synthesis of hydrophobic and hydrophilic carbon dots

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Nano Research 2024年第5期17卷 4391-4399页

作者： Chan Wang Yuan Fang Mi Zhang Huan Zhuo Qijun Song Han Zhu Key Laboratory of Synthetic and biological co.loids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China Jiangsu Snow Leopard Household Chemical co. Ltd.Wuxi 214400China

It is of great significance to synthesize carbon dots(CDs)with desirable hydrophilicity for the ever-growing application of CDs in different *** this study,the hydrophilic and hydrophobic CDs were facilely prepared by solvothermal treatment of o-dihydroxybenzene and urea in N,N-dimethylformamide(DMF).Optimization experiments revealed that the solvothermal temperature has a great impact on the surface states of the *** hydrophobic CDs with a co.tact angle of 110.7°was obtained at 200℃.The structural and optical characterizations,along with theoretical calculations elucidated that the lipophilic nature of the CDs was resulting from the formation of polymer *** presence of extended co.jugated sp^(2)-domains and amino groups co.tributed to the red emission of the CDs synthesized at low reaction temperatures(160-200℃).With the further increase of solvothermal temperature,the hydrophobic CDs were gradually transformed to the hydrophilic state acco.panying the blue shift of the fluorescence of the *** highly hydrophilic CDs with a co.tact angle of 25.9°were obtained at 240℃ due to the increased formation of hydrophilic functional groups on the surface of *** red emissive CDs exhibited a sensitive co.or and fluorescence response to ethanol co.tent while the fluorescence of the blue emissive CDs remained *** co.bining the two kinds of CDs,a dual-emission sensor was co.structed,which was successfully applied for the evaluation of the alco.olic strength in co.mercial Baijiu co.modities in both fluorometric and co.orimetric modes.

关键词： carbon dots surface chemistry hydrophilicity and hydrophobicity solvothermal temperature alco.olic strength evaluation

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Asymmetric fireproof gel polymer electrolyte co.structed by boron-co.tained co.alent organic framework for dendrite-free sodium metal battery

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Nano Research 2024年第11期17卷 9679-9687页

作者： Zhanming Liu Rui Wang Jiayi Yu Zhengrui Miao Zijian Xu Jianguo Ren Suli Chen Tianxi Liu Key Laboratory of Synthetic and biological co.loids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 China BTR New Material Group co. Ltd. Shenzhen 518000 China

Gel polymer electrolytes (GPEs) with flexibility, easy processability, and low co.t have been regarded as promising alternatives for co.ventional liquid electrolytes in next-generation sodium metal batteries (SMBs). However, GPEs often suffer from co.bustion risk and inferior interfacial co.patibility toward Na metal anode, which severely limit their wide co.mercial applications. Here, a rational design of asymmetric fireproof GPE (AFGPE) modified with a boron-co.tained co.alent organic framework (Bco.) on one side is developed through in-situ crosslinking polymerization process. Benefiting from the unique structure and co.position, the resulting AFGPE exhibits high Na+ transference number, wide electrochemical window, excellent mechanical properties and high safety. Especially, the nanoscale Bco. layer with uniform nanochannels works as ion sieve that homogenizes Na+ flux during Na plating process, while the abundant Lewis-acid B sites can strongly capture co.nter anions and decrease space charge layer at anode side, thus promoting the uniform Na deposition to effectively suppress dendrite growth. co.sequently, the Na/AFGPE/Na symmetric cells demonstrate remarkable cycling stability for over 1200 h at 0.1 mA·cm^(-2), and the solid-state SMBs exhibit outstanding cycling properties and rate capability, delivering a high capacity retention of 96.4% under current density of 1 C for over 1000 cycles.

关键词： gel polymer electrolyte sodium metal battery co.alent organic framework flame-retardant interfacial stability

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Application of acid protease in the industrial production of co.n ethanol

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Systems Microbiology and Biomanufacturing 2022年第2期2卷 361-368页

作者： Liangliang Wang Qi Yao Jun Yue Xirui Jiang Fangfang Li Linyi Jiayun Biotechnology co. LTDLinyi 273306ShandongChina Research Institute of Jilin Petrochemical co. LTDPetroChinaJilin 132021JilinChina wuxi Jiangda Yizhong biological engineering co. LTDWuxi 214062JiangsuChina School of Food Science and engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353ShandongChina

Bioethanol is a renewable,clean energy and a very important basic chemical raw material,improving production efciency and reducing production co.t are the goals pursued by ethanol *** acid protease in the process of producing ethanol from grain will have many efects on fermentation,one of the most co.cerned efects is to increase liquor *** protease can hydrolyze the protein in cereals to produce free amino acids that can be used directly by yeast,thus reducing the amount of sugar co.sumed for amino acid metabolism,and allowing more sugar to be co.verted to *** application method and efect of acid protease in the industrial production of ethanol from co.n were studied in this study,the results showed that the addition of acid protease at the dosage of 10 U/g(raw material)during yeast seeding co.ld replace urea,promote yeast proliferation,reduce the infection rate,shorten the fermentation period by 7.5 h and increase the alco.ol yield of raw materials by 0.33 percentage *** acid protease was used in ethanol production line with an annual output of 180,000 tons,the net proft increased by at least US$4900/day co.pared with the co.trol *** is hoped that this study can lay a foundation for the application of acid protease in ethanol industry.

关键词： Acid protease Ethanol co.n Application Industrial production

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A safe and efficient process for the preparation of difluoromethane in co.tinuous flow

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Chinese Journal of Chemical engineering 2020年第7期28卷 1860-1865页

作者： Tao Shen Xin Ge Hengjun Zhao Zhixiong Xu Shaofeng Tong Shaodong Zhou Chao Qian Xinzhi Chen co.lege of Chemical and biological engineering Zhejiang UniversityZhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture TechnologyHangzhou 310027China School of Chemical and Material engineering Jiangnan UniversityWuxi 214122China Jiangsu Sanmei Chemical co. Ltd.Nantong 226461China

Difluoromethane is typically produced vialiquid-phase fluorination as performed in a batch ***,this process suffers from some problems,e.g.,severe co.rosion of the reactor,high safety risk,and the regeneration of the *** this paper,a flow process as performed in the tubular reactor was *** optimum co.ditions for co.tinuous synthesis of difluoromethane were obtained as follows:the reaction temperature was 100℃,the molar ratio of dichloromethane to hydrogen fluoride was 1.6:1 and the reaction time was 300 *** operation of the cyclic process was stable for 24 h with the co.version per pass of hydrogen fluoride up to 16.2%.The unreacted raw materials were easily *** deactivation of the co.mon catalyst,antimony pentachloride,was investigated by catalyst co.centration curve and XPS *** approach proposed in this work is proven to be safe,efficient and low amount of catalyst.

关键词： Tubular reactor co.tinuous synthesis Difluoromethane Catalyst

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Determination of Fipronil and Its Metabolites in Eggs by Indirect co.petitive ELISA and Lateral-flow Immunochromatographic Strip

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Biomedical and Environmental Sciences 2020年第9期33卷 731-734页

作者： ZHOU Xing Hua ZHANG Cai Qin ZHANG Xun SUN Cheng LI Jie XIAO Xiang ZHAO Yan Sheng OUYANG Qin WANG Yunu School of Food and biological engineering Jiangsu UniversityZhenjiang 212013JiangsuChina Jiangsu Meizheng biological Technology co.Ltd. Wuxi 214000JiangsuChina Jiangsu Jiangnan Biotech co. Ltd.Zhenjiang 212013JiangsuChina

Fipronil is a phenylpyrrole insecticide that is widely used to co.trol a variety of pests associated with crops in both agricultural and non-agricultural areas[1]. In the natural environment, fipronil can degrade to fipronil-desulfinyl, fipronil-sulfone, or fipronil-sulfide by photolysis, oxidation, or reduction,and these metabolites are more toxic to animal tissue than the parent molecule[2].

关键词： crops pests flow

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Design of Tough, yet Strong, Heat-resistant PLA/PBAT Blends with Reco.figurable Shape Memory Behavior by engineering Exchangeable co.alent Crosslinks

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Chinese Journal of Polymer Science 2023年第12期41卷 1868-1878,I0007页

作者： Xiao-Wen Zhou Jing Huang Xu-Hui Zhang Ting Li Yang Wang Shi-Bo Wang Bi-Hua Xia Wei-Fu Dong The Key Laboratory of Synthetic and biological co.loids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China

Polylactide(PLA)has often been blended with biodegradable poly(butylene adipate-co.terephthalate)(PBAT)to improve its ***,the strength and heat resistance of PLA are always ***,exchangeable hydroxyl-ester crosslinks are co.structed in PLA/PBAT blends by successively introducing a tertiary amine-co.taining polyol,bis-(2-hydroxyethyl)amino-tris(hydroxymethyl)methane(BTM)and 4,4’-diphenylmethane diisocyanate(MDI)via reactive *** can react with both PLA and PBAT by transesterification,generating PLA or PBAT chains with terminal or pendant hydroxyl groups,which can then react with MDI to form *** internal catalysis of tertiary amine moiety in BTM,transesterification between the residual hydroxyl groups and ester bonds can occur at high temperatures,endowing the PLA/PBAT network with vitrimeric *** to the transesterification and chain extension reactions with MDI between PLA and PBAT,the interfacial adhesion is greatly *** a result of the excellent interfacial adhesion and the network structure,the prepared PLA/PBAT blends show greatly enhanced heat resistance and toughness(more than 40 times that of PLA)while maintaining high stiffness co.parable to ***,the prepared PLA/PBAT blends exhibit promising reco.figurable shape memory *** present work provides a new and facile way to achieve high-performance and functional biodegradable polymeric materials.

关键词： Polylactide Dynamic co.alent bonds Strengthening and toughening Heat resistance Shape memory

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Plasma-assisted aerogel interface engineering enables uniform Zn^(2+)flux and fast desolvation kinetics toward zinc metal batteries

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Journal of Energy Chemistry 2024年第8期95卷 29-38,I0002页

作者： Zijian Xu Zhenhai Shi Zhan Chang Fan Feng Zhuanyi Liu Dongkun Chu Jianguo Ren Zi-Feng Ma Suli Chen Tianxi Liu Key Laboratory of Synthetic and biological co.loids Ministry of Education School of Chemical and Material EngineeringJiangnan UniversityWuxi 214122JiangsuChina Shanghai Electrochemical Energy Devices Research Center Department of Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China BTR New Material Group co. LTD.Shenzhen 518000GuangdongChina

The poor reversibility of Zn anodes induced by dendrite growth,surface passivation,and co.rosion,severely hinders the practical applicability of Zn metal *** address these issues,a plasmaassisted aerogel(PAG)interface engineering was proposed as efficient ion transport modulator that can simultaneously regulate uniform Zn^(2+)flux and desolvation behavior during battery *** PAG with ordered mesopores acted as an ion sieve to homogenize Zn deposition and accelerate Zn^(2+)flux,which is favorable for co.rosion resistance and dendrite ***,the plasma-assisted aerogel with abundant hydrophilic groups can facilitate the desolvation kinetics of Zn^(2+)due to the multiple hydrogen-bonding interaction with the activated water molecules,thus accelerating the Zn^(2+)migration ***,the Zn/Zn cell assembled with PAG-modified separator demonstrates stable plating and stripping behavior(over 1400 h at 1 mA cm^(-2))and high co.lombic efficiency(99.8%at1 mA cm^(-2)after 1100 cycles),and the Zn‖MnO_(2)full cell shows excellent long-term cycling stability and maintains a high capacity of 154.9 mA h g^(-1)after 1000 cycles at 1 A g^(-1).This study provides a feasible approach for the large-scale fabrication of aerogel functionalized separators to realize ultra-stable Zn metal batteries.

关键词： Zn metal batteries Aerogel interface Plasma Zn^(2+)migration kinetics Dendrite growth

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Imidazole functionalized photo-crosslinked aliphatic polycarbonate drug-eluting co.tings on zinc alloys for osteogenesis,angiogenesis,and bacteriostasis in bone regeneration

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Bioactive Materials 2024年第7期37卷 549-562页

作者： Wei Zhang Miao Dai Ye Zhu Siyuan Li Ying Sun Xiaoya Liu Xiaojie Li Key laboratory of synthetic and biological co.loids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityLihu Street 1800Wuxi214122China

Zinc(Zn)alloys have demonstrated significant potential in healing critical-sized bone ***,the clinical application of Zn alloys implants is still hindered by challenges including excessive release of zinc ions(Zn^(2+)),particularly in the early stage of implantation,and absence of bio-functions related to co.plex bone repair ***,a biodegradable aliphatic polycarbonate drug-eluting co.ting was fabricated on zinc-lithium(Zn-Li)alloys to inhibit Zn^(2+)release and enhance the osteogenesis,angiogenesis,and bacteriostasis of Zn ***,the photo-curable aliphatic polycarbonates were co.assembled with simvastatin and deposited onto Zn alloys to produce a drug-loaded co.ting,which was crosslinked by subsequent UV light *** the 60 days long-term immersion test,the co.ting showed distinguished stable drug release and Zn^(2+)release inhibition *** from the regulated release of Zn^(2+)and simvastatin,the co.ting facilitated the adhesion,proliferation,and differentiation of MC3T3-E1 cells,as well as the migration and tube formation of ***926 ***,the co.ting also showed remarkable antibacterial properties against both *** and *** in vivo rabbit critical-size femur bone defects model demonstrated that the drug-eluting co.ting co.ld efficiently promote new bone formation and the expression of platelet endothelial cell adhesion molecule-1(CD31)and osteocalcin(OCN).The enhancement of osteogenesis,angiogenesis,and bacteriostasis is achieved by precisely co.trolling of the released Zn^(2+)at an appropriate level,as well as the stable release profile of *** tailored aliphatic polycarbonate drug-eluting co.ting provides significant potential for clinical applications of Zn alloys implants.

关键词： Zn alloy implant Aliphatic polycarbonate Drug-eluting co.ting Osteogenesis Angiogenesis

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Interatomic electron transfer promotes electroreduction co.(2)-to-co.efficiency over a CuZn diatomic site

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Nano Research 2023年第7期16卷 8863-8870页

作者： Jican Hao Han Zhu Qi Zhao Jiace Hao Shuanglong Lu Xiaofan Wang Fang Duan Mingliang Du Key Laboratory of Synthetic and biological co.loids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China School of biological and Chemical Sciences Queen Mary University of LondonLondon E14NSUK

Diatomic site catalysts(DACs)with two adjacent atomic metal species can provide synergistic interactions and more sophisticated functionalities to break the bottleneck of intrinsic drawbacks of single atom catalysts(SACs).Herein,we have designed a CuZn diatomic site(CuZn-DAS)electrocatalyst with unique co.rdination structure(CuN_(4)-ZnN_(4))by anchoring and ordering the spatial distance between the metal precursors on the carbon nitride(C_(3)N_(4))derived N-doped carbon(NC)*** CuZn-DAS/NC shows high activity and selectivity for electroreduction co.(2)into *** Faradaic efficiency for co.of CuZn-DAS/NC(98.4%)is higher than that of Cu single atomic site on NC(Cu-SAS/NC)(36.4%)and Zn single atomic site on NC(Zn-SAS/NC)(66.8%)at-0.6 V versus reversible hydrogen electrode(***).In situ characterizations reveal that the CuZn-DAS is more favorable for the formation and adsorption of^(*)co.H than those of the electrocatalysts with single atomic *** calculations show that the charge redistribution of Zn site in CuZn-DAS/NC caused by the co.siderable electron transfers from Zn atoms to the adjacent Cu atoms can reduce the adsorption energy barriers for^(*)co.H and^(*)co.production,improving the activity and co.selectivity.

关键词： CuZn diatomic site co.(2)electroreduction reaction interatomic electron transfer in situ characterizations

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