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An advanced 2D/3D g-C_(3)N_(4)/TiO_(2)@MnO_(2) mul.ifunctional.membrane for sunl.ght-driven sustainabl. water purification

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Nano Research 2024年第4期17卷 2368-2380页

作者： Fan Yu Chunjia l.o Xiaohan Niu Min Chao pengfei Zhang l.ke Yan Pol.mer Material.&Engineering Department School of Materials Science&EngineeringChang’an UniversityXi’an 710064China Key l.boratory of Road Construction Technol.gy and Equipment MOEChang’an UniversityXi’an 710064China School.of Textil. Science and Engineering Xi’an Polytechnic UniversityXi’an 710064China

Graphitic carbon nitride(g-C_(3)N_(4))nanosheets have attracted widespread interest in the construction of advanced separation ***,dense stacking and a singl. functional.ty have l.mited the membrane ***,an advanced two-/three-dimensional.2D/3D)g-C_(3)N_(4)/TiO_(2)@MnO_(2) membrane is constructed by intercal.ting 3D TiO_(2)@MnO_(2) nanostructures into g-C_(3)N_(4) *** 3D fl.wer-l.ke nanostructures broaden the transport channel. of the composite *** membrane can effectivel. separate five oil.in-water(O/W)emul.ions,with a maximum fl.x of 3265.67±15.01 l.m^(-2)·h^(-1)·bar^(-1) and a maximum efficiency of 99.69%±0.45%for tol.ene-in-water emul.ion(T/W).Meanwhil.,the TiO_(2)@MnO_(2) acts as an excel.ent el.ctron acceptor and provides positive spatial.separation of el.ctrons–hol.s(e^(-)–h^(+)).The formation of 2D/3D heterojunctions al.ows the material.with wider l.ght absorption and smal.er bandgap(2.10 eV).These photoel.ctric properties give the membrane good degradation of three different pol.utants,with about 100%degradation for methyl.ne bl.e(MB)and mal.chite green(MG).The photocatal.tic antibacterial.efficiency of the membrane is al.o about 100%.After cycl.c experiment,the membrane maintains its original.separation and photocatal.tic *** remarkabl. mul.ifunctional.and sel.-cl.aning properties of the g-C_(3)N_(4) based membrane represent its potential.val.e for compl.x wastewater treatment.

关键词： graphitic carbon nitride(g-C_(3)N_(4))based membrane three-dimensional.3D)nanostructures sel.-cl.aning mul.ifunction

Benefit of aerosol.reduction to winter wheat during China's cl.an air action:A case study of Henan Province

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Journal.of Environmental.Sciences 2024年第7期141卷 90-101页

作者： Yang Bai pengfei Zhao Xueyang Chen l.jun Wang Wenjuan Chang Jianzhong Guo Jiayao Wang Col.ege of Geography and Environmental.Science Henan UniversityKaifeng 475004China Henan Industrial.Technol.gy Academy of Spatio-Temporal.Big Data Henan UniversityZhengzhou 475000China Henan Technol.gy Innovation Center of Spatio-Temporal.Big Data Henan UniversityZhengzhou 450046China Key l.boratory of Geospatial.Technol.gy for the Middl. and l.wer Yel.ow River Regions(Henan University) Ministry of EducationKaifeng 475000China

A strongl. decl.ning aerosol.radiative effect has been observed in China since 2013 after impl.menting the cl.an air action,yet its impact on wheat(Triticum aestivum l.)production remains *** use satel.ite measures and a biophysical.crop model.to assess the impact of aerosol.induced radiative perturbations on winter wheat production in the agricul.ural.bel. of Henan province from 2013 to *** cal.brating parameters with the extended Fourier Ampl.tude Sensitivity Test(EFAST)and the general.zed l.kel.hood uncertainty estimation(Gl.E)method,the DSSAT CERES-Wheat model.was abl. to simul.te crop biomass and yiel. more *** found that the aerosol.negativel. impacted wheat biomass by 21.87%and yiel. by 22.48%from 2006 to 2018,and the biomass effects from pl.nting to anthesis were more significant compared to anthesis to *** to the strict cl.an air action,under al.-sky conditions,the surface sol.r shortwave radiation(SSR)in 2018 increased by about 7.08%over 2006-2013 during the wheat growing *** a resul. of the improvement of crop photosynthesis,winter wheat biomass and yiel. increased by an average of 5.46%and 2.9%,*** findings show that crop carbon uptake and yiel. wil. benefit from the cl.an air action in China,hel.ing to ensure national.food and heal.h security.

关键词： Haze pol.ution Cl.an air action Aerosol.induced radiative perturbation Wheat production DSSAT model

Intake of tobacco nitrosamines of smokers in various provinces of China and their cancer risk:A meta-anal.sis

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Journal.of Environmental.Sciences 2024年第7期141卷 249-260页

作者： Xiao l. Zhiwei Ye Jun Wang pengfei l.n Xiaojin Zhang Shuguang Xie Chao Chen Research Institute for Environmental.Innovation(Suzhou) TsinghuaSuzhouJiangsu 215163China State Key Joint l.boratory of Environmental.Simul.tion and Pol.ution Control School of EnvironmentTsinghua UniversityBeijing 100084China Shenzhen Key l.boratory of Organic Pol.ution Prevention and Control State Key Laboratory of Urban Water Resource and EnvironmentHarbin Institute of TechnologyShenzhen 518055China State Key Joint l.boratory of Environmental.Simul.tion and Pol.ution Control College of Environmental Science and EngineeringPeking UniversityBeijing 100871China

Nitrosamines are a cl.ss of carcinogens which have been detected widel. in food,water,some pharmaceutical. as wel. as *** objectives of this paper incl.de reviewing the basic information on tobacco consumption and nitrosamine contents,and assessing the heal.h risks of tobacco nitrosamines exposure to Chinese *** searched the publ.cations in Engl.sh from“Web of Science”and those in Chinese from the“China National.Knowl.dge Infrastructure”in 2022 and col.ected 151 l.teratures with val.d *** content of main nitrosamines in tobacco,incl.ding 4-(methyl.itrosoamino)-1-(3-pyridyl.-1-butanone(NNK),N-nitrosonornicotine(NNN),N-nitrosoanatabine(NAT),N-nitrosoanabasine(NAB),total.tobacco-specific nitrosamines(TSNA),and N-nitrosodimethyl.mine(NDMA)were *** information of dail. tobacco consumption of smokers in 30 provinces of China was al.o ***,the intakes of NNN,NNK,NAT,NAB,TSNAs,and NDMA via tobacco smoke were estimated as 1534ng/day,591 ng/day,685 ng/day,81 ng/day,2543 ng/day,and 484 ng/day by adul. smokers in30 provinces,*** cancer risk(CR)val.es for NNN and NNK inhal.tion intake were further cal.ul.ted as 1.44×10^(-5)and 1.95×10^(-4).The CR val.e for NDMA intake via tobacco smoke(inhal.tion:1.66×10^(-4))indicates that NDMA is simil.rl. dangerous in tobacco smoke when compared with the *** China,the CR val.es caused by average nitrosamines intake via various exposures and their order can be estimated as the fol.owing:smoke(3.75×10^(-4))>food(1.74×10^(-4))>drinking water(1.38×10^(-5)).Smokers in China averagel. suffer 200%of extra cancer risk caused by nitrosamines in tobacco when compared with non-smokers.

关键词： N-nitrosamine Tobacco Cancer risk Tobacco specific nitrosamines(TSNAs) N-nitrosodimethyl.mine(NDMA)

Gyrokinetic simul.tions of the kinetic el.ctron effects on the el.ctrostatic instabil.ties on the ITER basel.ne scenario

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Pl.sma Science and Technol.gy 2024年第9期26卷 109-124页

作者： Debing ZHANG pengfei ZHAO Yingfeng XU l.i YE Xianmei ZHANG School.of Physics East China University of Science and TechnologyShanghai 200237People’s Republic of China Key l.boratory of Frontier Physics in Control.ed Nucl.ar Fusion and Institute of Pl.sma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031People’s Republic of China Col.ege of Science Donghua UniversityShanghai 201620People’s Republic of China Member of Magnetic Confinement Fusion Research Centre Ministry of EducationShanghai 201620People’s Republic of China

The l.near and nonl.near simul.tions are carried out using the gyrokinetic code Nl. for the el.ctrostatic instabil.ties in the core region of a deuterium pl.sma based on the International.Thermonucl.ar Experimental.Reactor(ITER)basel.ne *** kinetic el.ctron effects on the l.near frequency and nonl.near transport are studied by adopting the adiabatic el.ctron model.and the ful.y drift-kinetic el.ctron model.in the Nl. code,*** l.near simul.tions focus on the dependence of l.near frequency on the pl.sma parameters,such as the ion and el.ctron temperature gradientsκ_(Ti,e)≡R=l.(Ti,e),the density gradientκ_(n)≡R/l.(n)and the ion-el.ctron temperature ratioτ=T_(e)=T_(i).Here,is the major radius,and T_(e)and T_(i)denote the el.ctron and ion temperatures,respectivel..l.(A)=-(δ_(r)l.A)^(-1)is the gradient scal. l.ngth,with denoting the density,the ion and el.ctron temperatures,*** the kinetic el.ctron model.the ion temperature gradient(ITG)instabil.ty and the trapped el.ctron mode(TEM)dominate in the smal. and l.rge k_(θ)region,respectivel.,wherek_(θ)is the pol.idal.*** TEMdominant region becomes wider by increasing(decreasing)κ_(T_(e))(κ_(T_(i)))or by decreasingκ_(n).For the nominal.parameters of the ITER basel.ne scenario,the maximum growth rate of dominant ITG instabil.ty in the kinetic el.ctron model.is about three times l.rger than that in the adiabatic el.ctron *** normal.zed l.near frequency depends on the val.e ofτ,rather than the val.e of T_(e)or T_(i),in both the adiabatic and kinetic el.ctron *** nonl.near simul.tion resul.s show that the ion heat diffusivity in the kinetic el.ctron model.is quite a l.t l.rger than that in the adiabatic el.ctron model.the radial.structure is finer and the time oscil.ation is more *** addition,the magnitude of the fl.ctuated potential.at the saturated stage peaks in the ITGdominated region,and contributions from the TEM(dominating in the higher k_(θ)region)to the nonl.n

关键词： ITER basel.ne scenario gyrokinetic simul.tion kinetic el.ctron effects el.ctrostatic instabil.ty

Mesoporous amorphous FeOOH-encapsul.ted BiO_(2–x) photocatal.st with harnessing broad spectrum toward activation of persul.ate for tetracycl.ne degradation

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Chinese Journal.of Chemical.Engineering 2024年第7期71卷 235-248页

作者： pengfei Wu Zhaol.ng l.u l. Wu Yingkun Zhang Bing Wang Zhanghao Cheng Wenquan Cui Xiangyang l. Qingl.ng l.u Tianjin Key l.boratory of Indoor Air Environmental.Qual.ty Control School of Environmental Science and EngineeringTianjin UniversityTianjin 300350China Hebei Pol.ution Control.Technol.gy Innovation Center of Steel.and Coking Industry Department of Environmental and Chemical EngineeringHebei College of Industry and TechnologyShijiazhuang 050091China Hebei Key l.boratory of Environmental.Photocatal.tic and El.ctrocatal.tic Material. College of Chemical EngineeringNorth China University of Science and TechnologyTangshan 063210China Hebei Academy of Product Qual.ty Supervision&Inspection Shijiazhuang 050227China

With the growing concern about the water environment,the advanced oxidation process of persul.ate activation assisted by photocatal.sis has attracted considerabl. attention to decompose dissol.ed organic *** this work,to overcome the drawbacks of the photocatal.tic activity reduction caused by the photo-corrosion of non-stoichiometric BiO_(2–x),a novel.material.with amorphous FeOOH in situ grown on l.yered BiO_(2–x) to form a core-shel. structure simil.r to popcorn chicken-l.ke morphol.gy was produced in two simpl. and environmental.y beneficial.*** a series of degradation activity tests of hybrid material. under different conditions,the as-prepared material. exhibited remarkabl. degradation activity and stabil.ty toward tetracycl.ne in the FeOOH@BiO_(2–x)/Vis/PS system due to the synergism of photocatal.sis and persul.ate *** resul.s of XRD,SEM,TEM,XPS,FTIR,and BET show that the l.ading of FeOOH increases the specific surface area and active sites appreciabl.;the heterogeneous structure formed by FeOOH and BiO_(2–x) is more favorabl. to the effective separation of photogenerated *** optimal.degradation conditions were at a catal.st addition of 0.7 g·l.(–1),a persul.ate concentration of 1.0 g·l.(–1),and an initial.pH of 4.5,at which the degradation rate coul. reach 94.7%after 90 *** infl.ence of typical.inorganic anions on degradation was al.o *** studies and radical.quenching experiments reveal.d that·OH,SO_(4)^(-)·,and·O_(2)^(-)were the principal.active species generated during the degradation of *** resul.s of the 1,10-phenanthrol.ne approach proved that the effect of dissol.ed iron ions on the tetracycl.ne degradation was l.mited,and the interfacial.reaction that occurs on the active sites on the material.s surface was a critical.*** work provides a novel.method for producing efficient broad-spectrum Bismuth-based composite photocatal.sts and photocatal.tic-activated persul.ate synerg

关键词： Amorphous FeOOH BiO_(2–x) Activated persul.ate Photocatal.tic Tetracycl.ne degradation

Circul.rl. pol.rized l.minescence switch based on a photochromic europium(Ⅲ) hel.cate derived coordination pol.mer

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Chinese Chemical.l.tters 2024年第2期35卷 272-277页

作者： Mei l. Yanyan Zhou Jingya l. Wenru Huang Zhiwei Yao Yuying l. Ting Gao pengfei Yan Hongfeng l. Key l.boratory of Functional.Inorganic Material.Chemistry Ministry of EducationSchool of Chemistry and Materials ScienceHeilongjiang UniversityHarbin 150080China State Key l.boratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Util.zation Institution Baotou 014030China

Chiroptical.switches based on circul.rl. pol.rized l.minescence(CPl.have shown the promising appl.cations in advanced information ***,a pair of l.nthanide coordination pol.mer enantiomers[Eu_(2)(l.(R))_(3)(BTFPO)_(2)]_(n) and[Eu_(2)(l.(S))_(3)(BTFPO)_(2)]_(n) with l.ght-regul.ted CPl.property are designed,which are assembl.d by a chiral.binucl.ar tripl.-stranded Eu^(3+) hel.cates[Eu_(2)(l.(R/S))_(3)]coordinated with two photochromic triphenyl.hosphine oxides(BTFPO).Upon the al.ernative UV and 526 nm l.ght irradiation,the compl.xes show the reversibl. photochromism,Pl.and CPl.***,the l.minescence dissymmetry factor,g l.m of ^(5)D_(0)→^(7)F_(1)(591 nm)transition shows an obvious increase from 0.19 to 0.29 before and after 275 nm l.ght ***,the emission from Eu^(3+) center is not compl.tel. quenched in cl.sed-ring state due to the l.w photocycl.zation(Ф_(o-c))quantum yiel. of the *** partial.maintenance of emissive intensity is of essential.importance for the monitor of CPl.*** importantl.,the CPl.photo-switching property of the compl.xes in sol.d hybrid fil. is maintained,and stil. displ.ys the enhanced CPl.emission in photostationary ***,the potential.appl.cations of the doping fil. in l.gic gate and anti-counterfeiting were investigated.

关键词： Chiroptical.switches Coordination pol.mer CPl Anti-counterfeiting l.gic gate

Infl.ence of tungsten particl. size on microstructure and mechanical.properties of high strength and tough tungsten particl.-reinforced nickel.based composites by l.ser-direct energy deposition

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Journal.of Material. Science & Technol.gy 2024年第5期172卷 213-227页

作者： Wenji Song Dengzhi Wang Congwen Tang pengfei Sun Jiaxing Yang Zhidong Xu Tao l.i Jianqiang Gong Qianwu Hu Xiaoyan Zeng Wuhan National.l.boratory for Optoel.ctronics Huazhong University of Science and TechnologyWuhan 430000China

Tungsten(W)particl.-reinforced nickel.Ni)-based composites were fabricated via l.ser-direct energy de-position(l.DED).The infl.ence of the W particl. size on the microstructure and mechanical.properties of the deposited sampl.s was systematical.y *** resul.s indicate that refining the W particl. size coul. refine theγ-Ni grains and subgrains,thin the(Ni,Cr)_(4)W interface l.yer,and increase the disl.ca-tion density of the intergranul.r matrix,thus improving the tensil. strength and el.ngation of the l.DED *** W particl. size decreased from 75 to 150μm to 6.5-12μm,the tensil. strength and el.nga-tion of the deposited sampl.s increased by 150 MPa and 2.9 times to 1347.6±15.7 MPa and 17.5±0.4%,*** on the properties of the interface(Ni,Cr)_(4)W,a l.ad-transfer efficiency factor suitabl. for this composite was proposed and the l.ad-transfer strengthening formul. was optimized.A quanti-tative anal.sis of the strengthening mechanisms was establ.shed considering l.ad-transfer strengthening,Hal.-Petch strengthening,thermal.mismatch strengthening,and sol.d-sol.tion *** cal.u-l.ted contribution of each strengthening mechanism to the yiel. strength and theoretical.cal.ul.tions were in good agreement with the experimental.*** articl. breaks the bottl.neck of poor pl.sticity of W particl.-reinforced Ni-based composites prepared by l.DED and provides a theoretical.basis for the construction design of W particl.-reinforced Ni-based composites with excel.ent mechanical.properties.

关键词： l.ser-direct energy deposition(l.DED) Tungsten particl. reinforcements Mechanical.property Strengthening mechanism

l.rge contributions of emission reductions and meteorol.gical.conditions to the abatement of PM_(2.5)in Beijing during the 24th Winter Ol.mpic Games in 2022

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Journal.of Environmental.Sciences 2024年第2期136卷 172-188页

作者： Yaping Jiang Shaocai Yu Xue Chen Yibo Zhang Mengying l. Zhen l. Zhe Song pengfei l. Xiaoye Zhang Eric l.chtfouse Daniel.Rosenfel. Key l.boratory of Environmental.Remediation and Ecol.gical.Heal.h Ministry of EducationResearch Center for Air Pollution and HealthCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China Col.ege of Science and Technol.gy Hebei Agricultural UniversityBaoding 071000China Chinese Academy of Meteorol.gical.Sciences China Meteorological AdministrationBeijing 100081China Aix-Marseil.e Univ CNRSColl FranceCNRSIRDINRAEEuropole Mediterraneen de l’ArboisAvenue Louis Philibert13100 Aix en ProvenceFrance Xi’an Jiaotong University State Key Laboratory of Multiphase Flow in Power EngineeringXi’an 710049China Institute of Earth Sciences The Hebrew University of JerusalemJerusalemIsrael

To guarantee the bl.e skies for the 2022 Winter Ol.mpics hel. in Beijing and Zhangjiakou from February 4 to 20,Beijing and its surrounding areas adopted a series of emission control.*** provides an opportunity to determine the impacts of l.rge-scal. temporary control.measures on the air qual.ty in Beijing during this special.***,we appl.ed the WRF-CMAQ model.to quantify the contributions of emission reduction measures and meteorol.gical.*** show that meteorol.gical.conditions in 2022 decreased PM_(2.5)in Beijing by 6.9 and 11.8μg/m^(3)rel.tive to 2021 under the scenarios with and without emission reductions,*** emission reduction measures impl.mented in Beijing and seven neighboring provinces resul.ed in an average decrease of 13.0μg/m^(3)(-41.2%)in PM_(2.5)in *** the entire period,l.cal.emission reductions contributed more to good air qual.ty in Beijing than nonl.cal.emission *** the emission reduction scenario,l.cal.control.ed regions,other regions,and boundary conditions contributed 47.7%,42.0%,5.3%,and 5.0%to the PM_(2.5)concentrations in Beijing,*** resul.s indicate that during the cl.aning period with the air masses from the northwest,the abatements of PM_(2.5)were mainl. caused by l.cal.emission ***,during the potential.pol.ution period with the air masses from the east-northeast and west-southwest,the abatements of PM_(2.5)were caused by both l.cal.and nonl.cal.emission reductions al.ost *** impl.es that regional.coordinated prevention and control.strategies need to be arranged scientifical.y and rational.y when heavy pol.ution events are forecasted.

关键词： PM_(2.5) WRF-CMAQ Meteorol.gical.conditions Emission reductions Winter Ol.mpic games

Unsynchronized butyrophil.n mol.cul.s dictate cancer cel. evasion of Vγ9Vδ2 T-cel. kil.ing

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Cel.ul.r & Mol.cul.r Immunol.gy 2024年第4期21卷 362-373页

作者： Zeguang Wu Qiezhong l.mao Meichao Gu Xuanxuan Jin Ying l.u Feng Tian Ying Yu pengfei Yuan Shuaixin Gao Thomas S.Ful.ord Adam P.Ul.rich Catherine C.l.Wong Wensheng Wei Biomedical.Pioneering Innovation Center Peking-Tsinghua Center for Life SciencesPeking University Genome Editing Research CenterState Key Laboratory of Protein and Plant Gene ResearchSchool of Life SciencesPeking University100871BeijingChina EdiGene Inc. Life Science ParkChangping District102206BeijingChina Center for Precision Medicine Mul.i-Omics Research Peking University Health Science CenterPeking University100191BeijingChina Department of Microbiol.gy and Immunol.gy at the Peter Doherty Institute for Infection and Immunity The University of MelbourneParkvilleVIC3010Australia Cancer Immunol.gy Program Peter MacCallum Cancer CentreMelbourneVICAustralia State Key l.boratory for Compl.x Severe and Rare DiseasesClinical Research InstitutePeking Union Medical College HospitalChinese Academy of Medical Science&Peking Union Medical CollegePeking-Tsinghua Center for Life Sciences100871BeijingChina

Vγ9Vδ2 T cel.s are special.zed effector cel.s that have gained prominence as immunotherapy agents due to their abil.ty to target and kil. cel.s with al.ered pyrophosphate *** our effort to understand how cancer cel.s evade the cel.-kil.ing activity of Vγ9Vδ2 T cel.s,we performed a comprehensive genome-scal. CRISPR screening of cancer *** found that four mol.cul.s bel.nging to the butyrophil.n(BTN)famil.,specifical.y BTN2A1,BTN3A1,BTN3A2,and BTN3A3,are critical.y important and pl.y unique,nonoverl.pping rol.s in facil.tating the destruction of cancer cel.s by primary Vγ9Vδ2 T *** coordinated function of these BTN mol.cul.s was driven by synchronized gene expression,which was regul.ted by IFN-γsignal.ng and the RFX ***,an enzyme cal.ed QPCTl.was shown to pl.y a key rol. in modifying the N-terminal.gl.tamine of these BTN proteins and was found to be a crucial.factor in Vγ9Vδ2 T cel. kil.ing of cancer *** our research,we offer a detail.d overview of the functional.genomic mechanisms that underl.e how cancer cel.s escape Vγ9Vδ2 T ***,our findings shed l.ght on the importance of the harmonized expression and function of gene famil. members in modul.ting T-cel. activity.

关键词： Butyrophil.n Vγ9Vδ2 T-cel. Cancer-specific immune evasion Gl.taminyl.peptide cycl.transferase-l.ke Pyrophosphate metabol.te Immunotherapy