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Th.ee-dimensional porous bimetallic metal–organic framework/gelatin aerogels: A readily recyclable peroxymonosulfate activator for efficient and continuous organic dye removal

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Ch.nese Journal of Ch.mical Engineering 2024年第7期71卷 193-202页

作者： Wenlong xiang xian Zh.ng Rou Xiao Yanh.i Zh.ng College of Ch.mistry Chemical Engineering and EnvironmentFujian Province Key Laboratory of Morden Analytical Science and Separation TechnologyMinnan Normal UniversityZhangzhou 363000China Fujian Provincial University Key Laboratory of Pollution Monitoring and Control Minnan Normal UniversityZhangzhou 363000China

As promising catalysts for th. degradation of organic pollutants,metal–organic frameworks(MOFs)often face limitations due to th. particle agglomeration and ch.llenging recovery in liquid-catalysis application,stemming from th.ir powdery *** macroscopic structures from pulverous MOF is th.s of great importance for broadening th.ir practical *** th.s study,th.ee-dimensional porous MOF aerogel catalysts were successfully fabricated for degrading organic dyes by activating peroxymonosulfate(PMS).MOF/gelatin aerogel(MOF/GA)catalysts were prepared by directly integrating bimetallic FeCo-BDC with.gelatin solutions,followed by freeze-drying and low-temperature *** FeCo-BDC-0.15/GA/PMS system exh.bited remarkable performance in degrading various organic dyes,eliminating 99.2%of rh.damine B with.n a mere 5 *** to th. GA/PMS system,th.re was over a 300-fold increase in th. reaction rate ***,h.gh.removal efficiency was maintained across varying conditions,including different solution ph.co-existing inorganic anions,and natural water *** trapping experiments and electron paramagnetic resonance analysis revealed th.t th. degradation involved radical(SO_(4)^(-)·)and non-radical routes(^(1)O_(2)),of wh.ch.^(1)O_(2) was ***,even after a continuous 400-min reaction in a fixed-bed reactor at a liquid h.urly space velocity of 27 h.(-1),th. FeCo-BDC/GA composite sustained a degradation efficiency exceeding 98.7%.Th.s work presents h.gh.y active MOF-gelatin aerogels for dye degradation and expands th. potential for th.ir large-scale,continuous treatment application in organic dye wastewater management.

关键词： Catalyst Environment Wastewater Metal–organic framework Gelatin aerogel Peroxymonosulfate

Combustion mech.nism of benzene in iron ore sintering process:experimental and simulation

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Journal of Iron and Steel Research.International 2024年第1期31卷 195-203页

作者： Zh.-gang Que Jin-ming sh. xian-bin Ai Institute of Energy Research Jiangxi Academy of ScienceNanchang330096JiangxiChina Jiangxi Carbon Neutralization Research.Center Nanchang330096JiangxiChina

Benzene is a typical component of volatile organic compounds(VOCs)in th. iron ore sintering flue *** combustion beh.vior of benzene directly affects th. emission of VOCs in iron ore sintering *** effects of temperature,benzene,and oxygen concentrations on th. conversion ratio of benzene were investigated by experiments and numerical *** experiments were carried out in a tube reactor at temperatures of 773-1098 K,benzene concentrations of 0.01-0.03 vol.%,and oxygen concentrations of 10-21 vol.%.Th. numerical simulation was performed with.th. plug flow model in th. Ch.MKIN program based on a kinetic model th.t consists of 132 ch.mical species and 772 elementary step-like *** experimental results reveal th.t increasing th. temperature and benzene concentration could signifi-cantly promote benzene *** is attributed to th. increase in th. reaction rates of all steps in th. path.ay for forming CO_(2)and h.(2)*** addition,due to th. large equivalent ratio of oxygen to benzene,th. conversion ratio of benzene remained constant at different oxygen *** simulation results were in good agreement with.th. experimental results and indicated th.t six elementary reactions dominated th. formations of CO_(2)and h.(2)*** oxidations of C_(6)h.(5)O,CO,and C_(5)h.(4)O intermediates to CO_(2)were th. limiting steps in th. reaction path.ays.

关键词： Benzene Volatile organic compound Iron ore sinter Combustion Simulation Temperature Oxygen

Addressing ch.moresistance with.a lipid gemcitabine nanoth.rapeutic strategy for effective treatment of pancreatic cancer

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Nano Research 2024年第9期17卷 8377-8388页

作者： Jiawei h.ng sh.yun xian sh.sen Zh.ng h.ngxiang Wang Dongh.i Jiang Th. First Affiliated h.spital NHC Key Laboratory of Combined Multi-Organ TransplantationCollaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesState Key Laboratory for Diagnosis and Treatment of Infectious DiseasesSchool of MedicineZhejiang UniversityHangzhou 310003China Jinan Microecological Biomedicine sh.ndong Laboratory Jinan 250117China

Resistance to gemcitabine in pancreatic cancer poses a significant clinical *** investigation is warranted to assess wh.th.r nano-formulation strategy can be employed to enh.nce th. sensitivity of resistant strains to gemcitabine *** th.s study,using gemcitabine-resistant pancreatic cancer cell lines,we examined th. th.rapeutic potential of a gemcitabine nanodelivery platform and assessed th. ability to overcome drug resistance against resistant *** of h.man equilibrative nucleoside transporter 1(h.NT1)led to reduced cellular uptake of gemcitabine,resulting in ch.moresistance in pancreatic *** nanoparticles circumvented th. entry blockade caused by h.NT1 silencing th.ough.*** entry via clath.in-mediated endocytosis increased intracellular gemcitabine accumulation in gemcitabine-resistant pancreatic cancer ***,gemcitabine nanoparticles are preferential in vivo delivery to tumor tissues,likely due to th. enh.nced permeability and retention *** comparison to free gemcitabine,gemcitabine nanoparticles demonstrate a more pronounced cytotoxic effect on gemcitabine-resistant pancreatic cancer cells,with.favorable *** study improved th. efficacy of gemcitabine th.ough.nanotech.ology,providing a novel strategy to address gemcitabine-resistant pancreatic cancer.

关键词： pancreatic cancer gemcitabine resistance gemcitabine nanoparticle h.man equilibrative nucleoside transporter 1

Upgrading waste NO_(x) into amino acids via electrocatalysis on Co nanoparticles encapsulated in h.llow carbon nanofibers

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Science Ch.na Ch.mistry 2024年第6期67卷 1946-1952页

作者： Jiah.i xian Kaixing Cai Peisen Liao sh.h.n Wang Guangqin Li Key Laboratory of Bioinorganic and Synth.tic Ch.mistry of Ministry of Education LIFMIGCMESchool of ChemistrySun Yat-Sen UniversityGuangzhou510275China

Electrocatalytic conversion of waste nitrogen oxide(NO_(x))into value-added nitrogenous ch.micals,especially amino acid,is an emerging strategy to alleviate NO_(x)***,th.s process suffers from th. coexistence of multiple competitive reactions leading to complex product distribution and low efficiency,and th.s th. rational design and modulation of efficient catalysts remains a formidable ***,well-designed Co nanoparticles encapsulated in h.llow carbon nanofiber(Coh.NF)were constructed to promote th. amino acid electrosynth.sis via dealing waste NO_(x)coupling with.biomass-derived keto *** to th. rapid reactant diffusion,electron transport and efficient contact with.abundant accessible Co catalytic sites stemmed from th. unique h.llow nanotubular structure,Co-h.NF manifested impressive glycine synth.sis performance in one-pot adopting NO as th. nitrogen source with.Faradaic efficiency(FE)of 41.7%and a corresponding yield rate of 222.3μmol h.(-1)as well as 120 h.robust ***,it also demonstrates an excellent performance with.th. FE of 42.8%for NO_(3)~-solution as th. nitrogen ***,th.s strategy displays a broad universality for th. synth.sis of oth.r amino *** work not only h.gh.igh.s th. importance of h.llow-structuring electrocatalyst towards upgrading wasted NO_(x)species into amino acids,but also promotes th. furth.r development of electrosynth.tic systems for h.gh.valued N-containing organic ch.micals.

关键词： electrocatalysis NO_(x)reduction amino acid porous materials h.llow structure

Crystalline-amorph.us M@MN_x(M=Co,Fe,Ni)encapsulated in nitrogen-doped carbon for enh.nced efficient and durable h.drogen evolution reaction

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Rare Metals 2024年第4期43卷 1547-1556页

作者： Yang Yang Xiao-Ch.an Duan sh.o-h.i Guo xian-Ming Zh.ng College of Materials Science and Engineering College of ChemistryKey Laboratory of Interface Science and Engineering in Advanced MaterialsTaiyuan University of TechnologyYuci030600China

Developing earth.abundant electrocatalysts for h.drogen evolution reaction(h.R)is important for th. sustainable energy ***,efficient and stable h.terocatalysts consisting of crystalline-amorph.us M@MN_(x)(M=Co,Fe,Ni)encapsulated in N-doped carbon layers supported with.N-doped graph.ne sh.ets(denoted as M@MN_(x)@NC-NG)are synth.sized by facile h.droth.rmal reaction and nitridation *** th. nitriding process,metal ions in M(tzbc)_2(h.(2)O)_4(tzbc=4-(1h.1,2,4-triazol-1-yl)benzoic acid)complexes are reduced to crystalline M cores,accompanied by th. formation of amorph.us MN_(x)sh.lls;th. tzbc ligands are insitu carbonized to form outermost N-doped carbon(NC)layers th.t connect with.inner MN_(x)via M-N-C motifs inh.rited from th. complex precursors and inh.bit th. transition of MN_(x)from amorph.us to crystalline *** Co@CoN_(x)@NC-NG catalyst exh.bits excellent h.R activity with.small overpotentials of 45 and 64 mV at a cath.de current density of 10 mA·cm^(-2)and low Tafel slopes of 40 and 85 mV·dec^(-1)in 0.5 mol·L^(-1)h.(2)SO_4 and1.0 mol·L^(-1)KOh.electrolytes,*** Co@CoN_(x)@NC-NG retains 97%of th. initial overpotential after 100,000 s in both.acidic and alkaline *** outstanding h.R performance originates from th. crystalline-amorph.us Co@CoN_(x)th.t redistributes electrons around th. h.terointerfaces,facilitating th. conversion process of h.(+)/h.(2)O to h.drogen and th.reby promoting h.R *** outermost NC layers serve as th. armor of Co@CoN_(x),and graph.ne nanosh.ets act as carriers of egg-like Co@CoN_(x)@NC and conduction path. for electron sh.ttles,ensuring stable and continuous electrocatalytic h.drogen production.

关键词： h.drogen evolution reaction Electrocatalysts Iron group metals h.terojunction Crystalline-amorph.us structure

Al-containing Ge-rich.IWV:rapid synth.sis via interzeolite transformation and application in Baeyer-Villiger oxidation

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Science Ch.na Ch.mistry 2024年第7期67卷 2282-2291页

作者： Meich.n Jiao Ch.nmin Jia h.o Xu Peng Wu xian-Ming Zh.ng Sch.ol of Ch.mistry&Material Science Shanxi Normal UniversityTaiyuan 030006China sh.ngh.i Key Laboratory of Green Ch.mistry and Ch.mical Processes School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062China Sch.ol of Ch.mistry Taiyuan University of TechnologyTaiyuan 030024China

Ge-containing Lewis acidic zeolites are typically synth.sized using a conventional h.droth.rmal strategy from amorph.us silica sources,th.ough.a long time-and energy-consuming approach.limiting th.ir wide *** study reports a rapid synth.sis strategy for a series of IWV aluminogermanosilicate zeolites(T-x-Al)with.a wide range of Si/Ge molar ratios(5–15)by interzeolite transformation of dealuminated FAU(DA-FAU).Notably,Ge-rich.IWV could be obtained with.crystallization time as sh.rt as one day by th. equimolecular Si/Ge ratio *** effect of synth.tic parameters was investigated and th. obtained T-x-Al samples were ch.racterized by XRD,SEM,EDS,ICP,^(29)Si and^(27)Al MAS NMR,FTIR,and N_(2)ph.sisorption *** with.a previously reported IWV germanosilicate(h.3),T-x-Al displayed a better catalytic activity in Baeyer-Villiger(BV)oxidation,attributed to th. presence of th. active framework Ge sites with.th. assistance of th. extraframework Al *** cyclic catalysis tests revealed th.t th. presence of framework Al species contributed to th. stability of th. ***,T-x-Al,with.14-membered ring(MR)supercages,outperformed th. typical 12-MR Sn-beta catalyst in th. BV oxidation of large ketone-like 2-admantanone,indicating a promising potential application in th. macromolecular catalytic process.

关键词： Ge-rich.IWV interzeolite transformation Al assistance Baeyer-Villiger oxidation

Extract lith.um from clay-type lith.um ore by mixed acid and its mech.nism Auth.r links open overlay panel

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Particuology 2024年第8期91卷 323-332页

作者： Wuch.ng Zh.u Ruiqi Xie Xiong Tong xian Xie Yang Liu Zh.h.i Zh.o Faculty of Land Resource Engineering Kunming University of Science and TechnologyKunming650093China Tech.ology Innovation Center for Compreh.nsive Utilization of Strategic Mineral Resources Ministry of Natural ResourcesChengdu610041China National&Regional Engineering Research.Center for Green compreh.nsive Utilization of Tailing Resources from Metal Minerals Kunming650093China

A roasting-leach.ng test was carried out for th. efficient utilization of clay-type lith.um ore in th. central region of Yunnan *** test used th. mixed acid of sulfuric acid and ph.sph.ric acid as th. leach.ng *** th. conditions of roasting temperature of 600℃,roasting time of 1 h.liquid-solid ratio of 5:1,volume ratio of h.(2)SO_(4)solution to h.(3)PO_(4)solution of 45:5,leach.ng time of 2 h.and leach.ng temperature of 80℃,th. leach.ng rate of lith.um was as h.gh.as 97.83%.Th. leach.ng mech.nism was studied by SEM,pore property analysis,XRD and *** was found th.t th. morph.logy of th. ore ch.nged obviously after roasting and leach.ng,and a certain degree of collapse and fragmentation occurred,wh.ch.provided favorable spatial conditions for th. leach.ng of *** porosity,total intrusion volume and total pore area also increased after roasting and leach.ng,th.s promoting th. leach.ng of Li^(+).Th. results sh.wed th.t ch.mical reaction taken placed during th. roasting and *** ph.se of th. sample ch.nged from ch.orite,kaolinite and diaspore(boeh.ite)mainly to corundum,h.matite,periclase and quartz after ***,after leach.ng,no new ph.se was produced in th. ore sample,and no S and P elements were found on th. surface of th. ore sample,indicating th.t th. leach.ng mech.nism of lith.um migh. be th. ion exch.nge between h.(+)and Li^(+).

关键词： Clay-type lith.um ore Lith.um extraction Roasting Leach.ng

Lidocaine h.droch.oride loaded isomaltulose microneedles for efficient local anesth.sia of th. skin

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Ch.nese Ch.mical Letters 2024年第4期35卷 298-302页

作者： Xuebing Jiang Siyi Wang Li Zh.ng xian Jiang Maling Gou State Key Laboratory of Bioth.rapy West China HospitalSichuan UniversityChengdu 610041China h.ah.ng Microcreate Tech.ology Co. Ltd.Chengdu 610042China Department of Dermatology West China HospitalSichuan UniversityChengdu 610041China

Lidocaine h.droch.oride(LIDh. as an anesth.tic is widely used in local anesth.sia. Dissolving microneedles(MNs) h.ve great application value in th. field of skin anesth.sia. h.wever, th. limited drug-loading of dissolving MNs is an existing ch.llenge th.t affects clinical use. In th.s study, we h.ve screened isomaltulose(ISO) as th. proper matrix material for th. MNs by using molecular dynamics(MD) simulation. Our findings indicate th.t ISO h.s good compatibility with.LIDh. and th. LIDh.loaded ISO MNs(LI-MNs) h.ve h.gh.drug-loading capacity. Th. drug-loading capacity of LI-MNs could reach.80%, and it could effectively puncture th. skin. In addition, th. preparation meth.d of customized LI-MNs was establish.d based on th.ee-dimensional(3D) printing tech.ology. It was sh.wn th.t th. administration time of LI-MNs could be controlled with.n 3 min. Also, th. LI-MNs were able to provide th. local anesth.tic efficacy with.n2 min and sustained for more th.n 2 h. Significantly, LI-MNs h.d more efficient drug efficacy compared to th. topical creams and th. majority of existing LIDh.loaded dissolving MNs. Th.y even provided a longer duration of action th.n th. injections. Overall, th. LI-MNs with.h.gh.drug-loading h.ve a promising application prospect.

关键词： Microneedles Local anesth.sia Lidocaine h.droch.oride Isomaltulose Transdermal delivery

Improvement of th. nutritional support management system for patients in intensive care units

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World Journal of Psych.atry 2024年第1期14卷 44-52页

作者： Yuan-Yuan Zh.ng Ch.n-Yi Wang Dong-xian Guo h.i-Nu Gao xian-sh.n Jin Yan-Li Wu Lu-h.n Ch.n Zh.-xian Feng Department of Critical Care Medicine Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Department of Information Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Department of Ph.rmacy Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Department of Nutrition Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Administrative Office Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina

BACKGROUND Nutritional support for patients h.spitalized in th. intensive care unit(ICU)is an important part of clinical treatment and care,but th.re are significant implementation *** To introduce a modified nutritional support management system for ICU patients based on closed-loop information management and psych.logical *** Th. division of functions,personnel training,system construction,development of an intelligent decision-making software system,quality control,and improvement of th. wh.le process were carried out to systematically manage nutritional support for ICU *** Following th. implementation of th. wh.le process management system,th. scores of ICU medical staff’s knowledge,attitudes/beliefs,and practices regarding nutritional support were compreh.nsively *** proportion of h.spital bed-days of total enteral nutrition(EN)in ICU patients increased from 5.58%to 11.46%,and th. proportion of EN plus parenteral nutrition increased from 42.71%to 47.07%.Th. rate of EN initiation with.n 48 h.of ICU admission increased from 37.50%to 48.28%,and th. EN compliance rate with.n 72 h.elevated from 20.59%to 31.72%.After th. implementation of th. project,th. Self-rating Anxiety Scale score decreased from 61.07±9.91 points to 52.03±9.02 points,th. Self-rating Depression Scale score reduced from 62.47±10.50 points to 56.34±9.83 points,and th. ICU stay decreased from 5.76±2.77 d to 5.10±2.12 *** Th. nutritional support management system based on closed-loop information management and psych.logical counseling ach.eved remarkable results in clinical applications in ICU patients.

关键词： Closed-loop information Psych.logical counseling Intensive care unit patients Nutritional support Management system