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AQDS Enhances Degradation of BDE-47 by Promoting Shewanella oneidensis MR-1-mediated Fenton Reaction with Fe(III)-containing Minerals

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Journal of Earth Science 2025年

作者： Yongguang jiang Siqi Zhu zhou jiang Yiran Dong Liang Shi School of Environmental Studies， China University of Geosciences State Key Laboratory of Biogeology and Environmental Geology， China University of Geosciences Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science， China University of Geosciences State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution， Ministry of Ecology and Environment， China University of Geosciences(Wuhan)

Electron shuttles are widespread in the environments and play important role in microbe-mineral interaction. This study investigated the effects of a model electron shuttle (i.e.， anthraquinone-2， 6-disulfonate， AQDS) on Shewanella oneidensis MR-1-mediated Fenton reaction and subsequent degradation of 2， 2′， 4， 4′-tetrabrominated diphenyl ether (BDE-47). Three Fe(III)-containing minerals， namely， ferrihydrite， goethite and nontronite， were used as electron acceptors and Fe(II) sources. With each mineral， additions of 0.01 – 1 mM AQDS in the reactions significantly enhanced Fe(III) reduction by S. oneidensis MR-1 and increased the amounts of Fe(II) produced in anoxic phase. As a result， the amounts of cumulative ·OH formed in oxic phase were increased by 10% – 287%. Regression analysis revealed that ·OH cumulation has significant linear correlation with sorbed Fe(II) but not aqueous and structural Fe(II). This finding may be ascribed to the higher reactivity of sorbed Fe(II) in oxygenation than the latter two types of Fe(II). With more ·OH， the degradation efficiency of BDE-47 was elevated by 31% – 173%. Collectively， AQDS enhances ·OH formation and BDE-47 degradation by promoting production of Fe(II)， particularly sorbed Fe(II) in S. oneidensis MR-1-mediated Fenton reaction with Fe(III)-containing minerals.

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New Weighted Norm Inequalities for Certain Classes of Multilinear Operators on Morrey-type Spaces

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Acta Mathematica Sinica,English Series 2021年第6期37卷 911-925页

作者： Nan ZHAO jiang zhou College of Mathematics and System Sciences Xinjiang UniversityUrumqi 830046P.R.China

Applying the new class of multiple weights A^(θ)_(p),we establish some weighted norm inequalities for certain classes of multilinear operators in the Morrey-type *** addition,the new multiple weighted norm inequaliti... 详细信息

关键词： A^(θ)_(p)weights multilinear operator commutators Morrey-type spaces BMOθspaces

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Weighted multilinear p-adic Hardy operators and commutators on p-adic Herz-type spaces

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Applied Mathematics(A Journal of Chinese Universities) 2024年第3期39卷 554-570页

作者： MA Teng zhou jiang College of Mathematics and System Sciences Xinjiang UniversityUrumqi 830046China

In this paper,we introduce the weighted multilinear p-adic Hardy operator and weighted multilinear p-adic Ces`aro operator,we also obtain the boundedness of these two operators on the product of p-adic Herz spaces and p-adic Morrey-Herz spaces,the corresponding operator norms are also established in each ***,the boundedness of commutators of these two operators with symbols in central bounded mean oscillation spaces and Lipschitz spaces on p-adic Morrey-Herz spaces are also given.

关键词： Morrey-Herz spaces weighted multilinear p-adic Hardy operator commutators operator norms

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Characterizations of the BMO and Lipschitz Spaces via Commutators on Weak Lebesgue and Morrey Spaces

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Acta Mathematicae Applicatae Sinica 2023年第3期39卷 583-590页

作者： Ding-huai WANG jiang zhou School of Mathematics and Statistics Anhui Normal UniversityWuhu 241002China College of Mathematics and System Sciences Xinjiang UniversityUrumqi 830046China

We prove that the weak Morrey space W M_(q)^(p) is contained in the Morrey space M_(q1)^(p) for 1 ≤ q1 详细信息

We prove that the weak Morrey space W M_(q)^(p) is contained in the Morrey space M_(q1)^(p) for 1 ≤ q1

关键词： BMO space characterization commutator Lipschitz space Morrey space

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Parabolic Equations with VMO Coefficients in Generalized Morrey Spaces

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Acta Mathematica Sinica,English Series 2010年第1期26卷 117-130页

作者： Lin ZHANG Yin Sheng jiang jiang zhou College of Mathematics and Systems Science Xinjiang University Urumqi 830046 P. R. China Department of Applied Mathematics Xinjiang Institue of Finance and Economics Urumqi 830012 F. R. China

In this paper, the authors establish the regularity in generalized Morrey spaces of solutions to parabolic equations with VMO coefficients by means of the theory of singular integrals and linear commutators.

关键词： uniformly parabolic operator generalized Morrey spaces VMO singular integrals andcommutators

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SbVO4 based high capacity potassium anode:a combination of conversion and alloying reactions

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Science China Chemistry 2021年第2期64卷 238-244页

作者： Xianhui Yi Junmin Ge Jiawan zhou jiang zhou Bingan Lu Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education&Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices School of Physics and ElectronicsHunan UniversityChangsha 410082China School of Materials Science and Engineering Central South UniversityChangsha 410083China

As the key to optimizing potassium ion batteries’(PIBs)performance,the development of high capacity potassium anode is the ***,through a one-step solvothermal method,uniformly dispersed SbVO4 nanoparticles on the reduced graphene oxide nanosheets(SbVO4@RGO)were synthesized and used as PIBs ***4@RGO anode shows high capacity due to alloying and conversion reactions occur simultaneously in the cyclic *** anode delivers a capacity as high as 447.9 mAh g^-1 at 100 mA g^-***,a cycling life of 500 cycles with small average capacity decay rate(only 0.106%per cycle)is also *** was found in the initial discharge process,SbVO4 transforms into Sb and *** in the following cycle Sb and K3VO4 simultaneously react with K+via the alloying/de-alloying and conversion reaction,*** present study of SbVO4@RGO may provide insight for high performance alloying-based/conversion-based potassium anodes.

关键词： potassium-ion batteries SbVO4@RGO anode alloying conversion

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Effects of Sequence Distribution and Physical Aging on Physical Properties of PES/PEES Random, Block, and Alternative Copolymers

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Chemical Research in Chinese Universities 2006年第6期22卷 787-791页

作者： zhou Xiao-ming jiang Zhen-hua Alan G. MacDiarmid Lab College of Chemistry Jilin University Changchun 130012 P. R. China

The random, block, and alternative copolymers of poly ether sulfone（PES） and poly ether ether sulfone（PEES） were synthesized v/a three kinds of methods. The chemical structures of the three kinds of copolymers were characterized by ^13C NMR. Three kinds of PES/PEES copolymers（ Tg =215 ℃ ）, which were almost identical in composition but different in sequence distribution, were used. Their physical aging process was studied by differential scanning calorimetry（DSC） at three aging temperatures ranging between Tg -15 ℃ and Tg -25℃. The experimental results reveal that the alternative copolymer shows a lower enthalpy relaxation time 〈T〉 and apparent activation energy when compared with the random and block copolymers. The result of the electron-microscopy investigation of the three copolymers that were treated at 200 ℃ for 96 h indicates that the molecular aggregation of the copolymers changed from a randomly coiled amorphous phase to an ordered phase, and the ordered structure of the alternative copolymer was more distinct than that of the random phase. The experimental results of this study suggest that the motion of the sagments is affected by the different molecular-chain sequence distribution.

关键词： Physical aging Apparent activation energy Sequence distribution

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Reaction mechanisms between molten CaF2-based slags and molten 9CrMoCoB steel

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International Journal of Minerals,Metallurgy and Materials 2020年第5期27卷 611-619页

作者： Lei-zhen Peng zhou-hua jiang Xin Geng School of Metallurgy Northeastern UniversityShenyang 110819China

Investigating the reaction mechanism between slag and 9CrMoCoB steel is important to develop the proper slag and produce qualified ingots in the electroslag remelting(ESR) process. Equilibrium reaction experiments between molten 9CrMoCoB steel and the slags of 55 wt%CaF2–20 wt%CaO–3 wt%MgO–22 wt%Al2O3–xwt%B2O3(x = 0.0, 0.5, 1.0, 1.5, 2.0, 3.0) were conducted. The reaction mechanisms between molten 9 CrMoCoB steel and the slags with different B2O3 contents were deduced based on the composition of the steel and slag samples at different reaction times. Results show that B content in the steel can be controlled within the target range when the B2O3 content is 0.5 wt% and the FeO content ranges from 0.18 wt% to 0.22 wt% in the slag. When the B2O3 content is ≥1 wt%, the reaction between Si and B2O3 leads to the increase of the B content of steel. The additions of SiO2 and B2O3 to the slag should accord to the mass ratio of [B]/[Si] in the electrode, and SiO2 addition inhibits the reaction between Si and Al2O3.

关键词： 9CrMoCoB electroslag remelting B2O3 thermodynamic calculation reaction mechanism

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Thermodynamic Calculation of Inclusion Formation in Mg-Al-Si-O System of 430 Stainless Steel Melts

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Journal of Iron and Steel Research International 2011年第2期18卷 14-17页

作者： jiang zhou-hua LI Shuang-jiang LI Yang School of Materials and Metallurgy Northeastern University Shenyang 110004 Liaoning China

A phase diagram was drawn through thermodynamic calculation to understand the equilibrium conditions of 2MgO · SiO2 , MgO · Al2O3 , 3Al2O3 · 2SIO2, and 2MgO·2Al2O3 · 5SiO2 formation in Mg-AI-Si-O system of 430 stainless steel melts at 1873 K. Further, the thermodynamic formation and transformation conditions of MgO · Al2O3 inclusion were discussed. The following results are obtained when ws, =0.26% and wo = 1.0 × 10^-5 in molten steel. The uniphase cordierite inclusion is difficult to exist stably; MgO· At203 inclusion cannot he formed in case of wAl being less than 1× 10^- 6 ; 3Al2O3 · 2SiO2 would change to MgO· Al2O3 and 2MgO · SiO2 in turn with increasing the Mg content when wAl is above 1.7× 10^- 6 ; with the formation of MgO · Al2O3 inclusion, A1 content increases with increasing Mg content when wMg is over 1. 7 × 10^- 9. For equilibrium condition and calculated steel composition, 2MgO·SiO2 inclusion would be formed ultimately and MgO · Al2O3 is almost inexistent.

关键词： phase diagram thermodynamic calculation MgO · Al2O3 inclusion 430 stainless steel

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A simulation method on target strength and circular SAS imaging of Xrudder UUV including multiple acoustic scattering

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Defence Technology（防务技术） 2023年第5期23卷 214-228页

作者： Wenhuan Wang Bin Wang Jun Fan Fulin zhou Kaiqi Zhao zhou jiang School of Naval Architecture Ocean&Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240PR China Key Laboratory of Marine Intelligent Equipment and System of Ministry of Education Shanghai Jiao Tong UniversityShanghai 200240PR China Shanghai Acoustics Laboratory Chinese Academy of SciencesShanghai 200240PR China

Target strength(TS)and circular synthetic aperture sonar(CSAS)images provide essential information for active acoustic detection and recognition of non-cooperative unmanned undersea vehicles(UUVs),which pose a significant threat to underwater preset *** access them,we propose an iterative physical acoustics(IPA)-based method to simulate the multiple acoustic scattered fields on rigid surfaces in high-frequency *** uses the Helmholtz integral equation with an appropriate Green's function in terms of the Neumann series,and then incorporates the ideas of triangulation and iteration into a numerical *** two approximate analytic formulae with precise physical meanings are derived to predict the TS and CSAS images of concave targets,*** are no restrictions on the surface's curvature and the order of multiple *** method is validated against the finite element method(FEM)for acoustic scattering from a sphere segment and against an experiment involving an X-rudder UUV's *** this basis,we simulate and analyze the TS and CSAS images of an X-rudder *** addition,the influence of the angle of adjacent rudders on the multiple scattering characteristics is *** show that this method can potentially predict accurate UUV features,especially the multiple scattered features.

关键词： Multiple acoustic scattering Target strength(TS) Circular synthetic aperture sonar(CSAS) X-rudder unmanned undersea vehicle (UUV) Iterative physical acoustics(IPA)

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