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Removal of endocrine disrupting chemicals from water through urethane functionalization of microfiltration membranes via electron beam irradiation

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Frontiers of Environmental Science & Engineering 2024年第4期18卷 61-74页

作者： Zahra niavarani Daniel Breite Muhammad Yasir Vladimir Sedlarik Andrea Prager nadja Schönherr Bernd Abel Roger Gläser Agnes Schulze Leibniz Institute of Surface Engineering eV.(IOM) Permoserstrasse 1504318 LeipzigGermany Centre of Polymer Systems University InstituteTomas Bata University in ZlinTrida Tomase Bati 567876001 ZlinCzech Republic Institute of Chemical Technology Leipzig UniversityLinnestrasse 304103 LeipzigGermany

Polyethersulphone(PES)membranes modified with urethane functional groups were prepared through an interfacial reaction using electron beam *** removal of eight endocrine disrupting chemicals(EDCs)was studied using both pristine and functionalized PES *** prepared membranes underwent characterization using several techniques,including attenuated total reflectance-Fourier transform infrared(ATR-FTIR)spectroscopy,scanning electron microscopy,contact angle analysis,and measurements of pure water ***,dynamic adsorption experiments were conducted to evaluate the adsorption mechanism of the prepared membrane toward the eight *** urethane functionalized membranes were hydrophilic(52°contact angle)and maintained a high permeate flux(26000 L/h m^(2) bar)throughout the filtration *** adsorption results demonstrated that the introduction of urethane functional groups on the membranes significantly enhanced the removal efficiency of 17β-estradiol,estriol,bisphenol A,estrone,ethinylestradiol,and *** adsorption loading of 17β-estradiol on the functionalized PES membrane was 6.7±0.7 mg/m^(2),exhibiting a 5-fold increase compared to the unmodified PES *** membranes were successfully regenerated and reused for three adsorption cycles without experiencing any loss of adsorption capacity.

关键词： Surface functionalization Electron beam irradiation Microfiltration Endocrine disrupting chemicals

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Biotechnological preparation of chicken skin gelatine using factorial design of experiments

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Food Bioscience 2022年第3期47卷 898-907页

作者： Petr Mrázek Robert Gál Pavel Mokrejš Jana Orsavová Dagmar Janáčová tomas bata university in zlín Department of Polymer EngineeringVavrečkova 275760 01ZlínCzech Republic tomas bata university in zlín Department of Food TechnologyMostní 5139760 01ZlínCzech Republic tomas bata university in zlín Language CentreŠtefánikova 5670760 01ZlínCzech Republic tomas bata university in zlín Department of Automation and Control EngineeringNad Stráněmi 4511760 01ZlínCzech Republic

Poultry meat production steadily increases and its by-products including legs or skins may be further utilized to prepare gelatine,generally by using alkali or acid *** they are toxic,different methods are desirable,*** proteolytic *** enzymes is beneficial as they shorten processing time and reduce the required water *** conditions(the enzyme amount during the pre-treatment,first and second extraction temperature and time)of the process may influence gelatine quality and its *** this study,gelatines were prepared from chicken skin at different conditions in the series of combined factorial design of *** significance of the influence of the conditions on the quality(gel strength,viscosity,melting and gelling point)and yield of chicken skin gelatine(CSG)was *** highest yield(31.5%)was obtained at the conditions of the enzyme amount of 0.8%,first extraction temperature 80℃ and time 30 min,second extraction temperature 90℃ and time 60 ***,the highest CSG quality of gel strength(190 Bloom),viscosity(4.06 mPas),melting point(38.3℃)and gelling point(20.5℃)was obtained at the conditions of 0.2%/50℃/30 min in the first extraction.

关键词： Collagen Chicken skin Enzyme pre-treatment Gelatine Gelling properties

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nano storage-boxes constructed by the vertical growth of MoS_(2 )on graphene for high-performance Li-S batteries

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Journal of Energy Chemistry 2022年第3期31卷 91-99,I0004页

作者： Bowen Cui Xiaomin Cai Wenqiang Wang Petr Saha Gengchao Wang Shanghai Key Laboratory of Advanced Polymeric Materials Shanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China Centre of Polymer Systems University InstituteTomas Bata UniversityTř.T.Bati 5678Zlin 76001ZlínCzech Republic

In order to accelerate the reaction kinetics of lithium-sulfur batteries, the introduction of electro catalysis and proper structural control of the sulfur cathode is urgently needed. MoS_(2) nano sheets was selectively grown vertically (V-MoS_(2)) on the microwave-reduced graphene (rGO) sheets through chemical coupling to construct a self-supporting sulfur cathode with a nano storage-box structure (V-MoS_(2) as the wall and rGO as the bottom). RGO, which has a high conductivity of 37 S cm^(−1), greatly accelerates the transfer of electrons from the active sites on the edge of the layer to the solution. The introduction of carbon tubes can connect the abundant pores in the foam and act as a long-range conductive path. The 2D-orthogonal-2D structure maximally exposes the edge active sites of MoS_(2), and together with graphene form a nano reactor of sulfur, intermediate lithium polysulfides and discharge product Li_(2)S(2). The effective combination of the microstructure confinement of the nano storage-boxes and the efficient synchronous catalytic mechanism of V-MoS_(2) greatly improves the electrochemical performance of the lithium-sulfur batteries. As a result, the assembled lithium-sulfur battery displays a high initial discharge capacity of 1379 mAh g^(−1), good cycle stability (86% capacity retention after 500 cycles at 0.1C) and superior rate performance.

关键词： Edge-rich MoS_(2) nano boxes Catalytic conversion Lithium-sulfur batteries

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Introducing a new Tool for Studying Unstable Systems

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International Journal of Automation and computing 2014年第6期11卷 580-587页

作者： Frantiek Gazdo tomas bata university in zlín Faculty of Applied Informatics nam.T.G.Masaryka 5555760 01 Zlin Czech Republic

This paper presents the starting project of a web site focussed on unstable systems. It is a web-based database in a bilingual version(English/Czech), which can be used as an information database for models of unstable processes. The web site contains the mathematical models of such systems, including their simulation files together with basic information about the stability of dynamic systems. The paper outlines the motivation for the development of this database, presents its basic structure, and discusses several models from the site. The areas of prospective usage are also suggested together with the possible directions of further development of this project. The contribution ends with a case study using the database for control system analysis and design of the Amira inverted pendulum. The systematic polynomial approach is fruitfully utilised for the task together with some useful tools from the robust control theory.

关键词： Unstable systems stability modelling simulation database robust control polynomial approach

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Optimal Choice of Weighting Factors in Adaptive Linear Quadratic Control

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International Journal of Automation and computing 2014年第3期11卷 241-248页

作者： Jiri Vojtesek Petr Dostal tomas bata university in zlin Faculty of Applied Informatics

Most of the processes in the industry have nonlinear behavior. Control of such processes with conventional control methods could lead to unstable, suboptimal, etc., results. On the other hand, the adaptive control is a technique widely used for controlling of nonlinear systems. The approach here is based on the recursive identification of the external linear model as a linear representation of the originally nonlinear system. The controller then reacts to the change of the working point or disturbances which could occur by the change of the parameters, structure, etc. The polynomial synthesis together with the linear quadratic(LQ) approach is employed here for the controller synthesis. These techniques satisfy basic control requirements such as the stability, the reference signal tracking and the disturbance attenuation. Resulted controller could be tuned with the choice of weighting factors in LQ approach. This work investigates the effect of these factors on control results. Proposed methods are tested on the mathematical model of the isothermal continuous stirred-tank reactor and simulated results are also verified on the real model of the continuous stirred tank reactor.

关键词： Simulation adaptive control recursive identification linear quadratic(LQ) approach continuous stirred-tank reactor(CSTR).

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Effect of a Hybrid Zinc Stearate-Silver System on the Properties of Polylactide and Its Abiotic and the Biotic Degradation and Antimicrobial Activity Thereof

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Chinese Journal of Polymer Science 2018年第8期36卷 925-933页

作者： Gabriela Jandikova Petra Stoplova Antonio Di Martino Petr Stloukal Pavel Kucharczyk Michal Machovsky Vladimir Sedlarik Centre of Polymer Systems University Institute Tomas Bata University in Zlin tr. Tomas Bati 5678 760 O1 Zlin Czech Republic

This work investigates the degradation and properties of a thermoplastically prepared composite comprising a polylactide/ hybrid zinc stearate-silver system. The influence of the zinc stearate-silver system on the properties of the composite is investigated by electron microscopy, differential scanning calorimetry and tensile tests. Furthermore, the antimicrobial activities of the systems are examined. The degradation behaviour of the composites is studied in both abiotic and biotic （composting） environments at an elevated temperature of 58 ℃. The results reveal good dispersion of the additive in the PLA matrix, a stabilizing effect exerted by the same on the polylactide matrix during processing, and slight reduction in glass transition temperature. The zinc stearate-silver component also reduces brittleness and extends elongation of the composite. Abiotic hydrolysis is not significantly affected, which is in contrast with pure PLA, although mineralization during the early stage of biodegradation increases noticeably. The composite exhibits antimicrobial activity, even at the lowest dosage of the zinc stearate/silver component （1 wt%）. Moreover, Ag and Zn contents were found to be present in the composite during abiotic hydrolysis, which was demonstrated by minimal diffusion of Ag ions from the matrix and very extensive washing of compounds that contained Zn.

关键词： Polylactide Composite Biodegradation Zinc stearate Silver Antimicrobial

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Effective Strategic Action:From Formulation to Implementation

Effective Strategic Action:From Formulation to Implementatio...

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2010 International Conference on Economics, Business and Management（ICEBM2010）

作者： Michaela Blahová Adriana Knápková Centre for Applied Economic Research Faculty of Management and Economics Tomas Bata University in Zlín ZlínCzech Republic Department of Finance and Accounting Faculty of Management and Economics Tomas Bata University in Zlín ZlínCzech Republic

Formulation and implementation of business strategies is often connected with CEOs,corporate heads of strategy or shareholders.A brilliant strategy may put a company on the competitive map and increase its ***,most companies struggle with *** generally fail at execution because they go straight to structural reorganization（which produces only short-term gains） and neglect the most powerful drivers of effectiveness-decision rights and information *** is the way to implement the business strategy effectively and which obstacles can harm the successful implementation?

关键词： strategy formulation implementation failure performance

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Rheology of Poly(vinyl butyral)Solution Containing Fumed Silica in Correlation with Electrospinning

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Chinese Journal of Polymer Science 2018年第6期36卷 742-748页

作者： Petra Peer Martina Polaskova Pavol Suly Institute of Hydrodynamics of the Czech Academy of Sciences Pod Patankou 5166 12 Prague 6Czech Republic Centre of Polymer Systems Tomas Bata University in Zlintrida Tomase Bati 5678760 O1 ZlinCzech Republic Department of Polymer Engineering Faculty of TechnologyTomas Bata University in ZlinVavreckova 27576001 ZlinCzech Republic

The rheological properties in question are influenced by many factors, ranging from the characteristics of the given polymer or solvent to the flowing conditions. The primary focus of this study is to analyse the rheological behaviour of poly（vinyl butyral）—Mowital B 60 H—（PVB） solutions dissolved in methanol and a blend of these with fumed silica nanoparticles. The preparation of the nanofibrous web and the quality of nanofibres were correlated with the rheology of the polymer solution. It was discerned that drastically intensifying shear viscosity and the elasticity of the solution exerted a negligible effect on the formation of fibres, a finding which has rarely been discussed in the literature. The morphologies and structures of the PVB/silica nanofibrous membranes were investigated by scanning electron microscopy, thermogravimetric analysis and Fourier transform infrared spectroscopy.

关键词： Electrospinning nanofibres Poly(vinyl butyral) Fumed silica Rheology

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ZnO@MOF@PAnI core-shell nanoarrays on carbon cloth for high-performance supercapacitor electrodes

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Journal of Energy Chemistry 2019年第8期28卷 124-131,I0005页

作者： Chunmei Zhu Ying He Yijun Liu natalia Kazantseva Petr Saha Qilin Cheng Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and TechnologyShanghai 200237 China Centre of Polymer Systems Tomas Bata University in Zlinnam. T. G. Masaryka 5555 760 01 Zlin Czechia

Hierarchical ZnO@metal-organic framework @polyaniline(ZnO@MOF@PAnI) core-shell nanorod arrays on carbon cloth has been fabricated by combining electrodeposition and hydrothermal method. Well-ordered Zn O nanorods not only act as a scaffold for growth of MOF/PAnI shell but also as Zn source for the formation of MOF. The morphology of ZnO@MOF@PAnI composite is greatly influenced by the number of PAnI electrodeposition cycles. Their structural and electrochemical properties were characterized with different techniques. The results indicate that the Zn O@MOF@PAnI with 13 CV cycles of PAnI deposition demonstrates the maximum specific capacitance of 340.7 F g-1 at 1.0 A g-1, good rate capability with84.3% capacitance retention from 1.0 to 10 A g-1 and excellent cycling life of 82.5% capacitance retention after 5000 cycles at high current density of 2.0 A g-1. This optimized core-shell nanoarchitecture endows the composite electrode with short ion diffusion pathway, rapid ion/electron transfer and high utilization of active materials, which thus result in excellent electrochemical performance of the ternary composite.

关键词： Metal-oragnic framework Polyaniline Core-shell nanoarrays Supercapacitor Electrochemical properties

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Highly surface electron-deficient Co_(9)S_(8) nanoarrays for enhanced oxygen evolution

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Green Energy & Environment 2020年第4期5卷 492-498页

作者： Haoxuan Zhang Jingyu Wang Qilin Cheng Petr Saha Hao Jiang Key Laboratory for Ultrafine Materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai200237China Centre of Polymer Systems University InstituteTomas Bata University in ZlinTrida T.Bati 5678Zlin76001Czech Republic

Tailoring valence electron delocalization of transition metal center is of importance to achieve highly-active electrocatalysts for oxygen evolution reaction(OER).Herein,we demonstrate a“poor sulfur”route to synthesize surface electron-deficient Co_(9)S_(8) nanoarrays,where the binding energy(BE)of Co metal center is considerably higher than all reported Co_(9)S_(8)-based *** resulting Co_(9)S_(8) electrocatalysts only require the overpotentials(h)of 265 and 326 mV at 10 and 100 mA cm^(-2) with a low Tafel slope of 56 mV dec^-(1) and a 60 hlasting stability in alkaline *** OER kinetics are greatly expedited with a low reaction activation energy of 27.9 kJ mol^-(1) as well as abundant OOH*key intermediates(24%),thus exhibiting excellent catalytic *** surface electron-deficient engineering gives an available strategy to improve the catalytic activity of other advanced non-noble electrocatalysts.

关键词： Electron deficiency Co_(9)S_(8) nanoarray Electrocatalyst Oxygen evolution reaction

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