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Preparation of reverse osmosis membrane with high permselectivity and anti-biofouling properties for desalination

Frontiers of Environmental Science & Engineering 2022年第7期16卷 73-86页

作者： Xinxia Tian Hui Yu Jun Yang Xiaotai Zhang Man Zhao Yang Yang Wei Sun Yangyang Wei Yin Zhang Jian Wang Zhun Ma The Institute of Seawater Desalination and Multipurpose Utilization MNR(Tianjin)Tianjin300192China Tianjin Huanke Environment Consulting CO. LTDTianjin300191China College of Chemical and Biological Engineering Shandong University of Science and TechnologyQingdao266590China

High performance is essential for the polyamide(PA)reverse osmosis(RO)membranes during the desalination ***,RO membranes with high permselectivity and anti-biofouling properties were fabricated by nanoparticles incorporation and anti-biofouling ***(HT)incorporation was performed with a dual role,enhancing water flux and acting as grafting *** HT incorporation increased the water flux without sacrificing the salt rejection,compensating for the loss caused by the following grafting *** exposed surface of HT acted as grafting sites for anti-biofouling agent dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride(DMOTPAC).The combination of HT incorporation and DMOTPAC grafting endowed RO membranes with high permselectivity and anti-biofouling *** water flux of the modified membrane PA-HT-0.06 was 49.8 L/m^(2)·h,which was 16.4%higher than that of the pristine *** salt rejection of PA-HT-0.06 was 99.1%,which was comparable to that of the pristine *** to the fouling of negatively charged lysozyme,the modified membrane’s water flux recovery was superior to that of the pristine membrane(e.g.86.8%of PA-HT-0.06 compared to 78.2%of PA-pristine).The sterilization rates of PA-HT-0.06 for *** and *** were 97.3%and 98.7%,much higher than those of the pristine membrane(24.0%for *** and 26.7%for ***).

关键词： Anti-biofouling grafting nanoparticle incorporation Sterilization rates Water flux Water flux recovery

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Ultrahigh figure-of-merit of Cu2Se incorporated with carbon coated boron nanoparticles

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InfoMat 2019年第1期1卷 108-115页

作者： Meng Li Sheik MdKazi Nazrul Islam Mujde Yahyaoglu Deng Pan Xun Shi Lidong Chen Umut Aydemir Xiaolin Wang Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongNorth WollongongNSWAustralia Graduate School of Sciences and Engineering KoçUniversitySariyerIstanbulTurkey Shandong YiAn Bio-Engineering Co. Ltd.JinanShandongChina State Key Laboratory of High Performance Ceramics and Superfine Microstructures Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiP.R.China Department of Chemistry KoçUniversitySariyerIstanbulTurkey KoçUniversity Akkim Boron-Based Materials and High Technology Chemicals Research and Application Center SariyerIstanbulTurkey ARC Centre of Excellence in Future Low-Energy Electronics Technologies University of WollongongAustralia

Cu2Se based thermoelectric materials are of great potential for high-temperature energy harvesting due to their high-temperature figure-of-merit(zT).For further development of Cu2Se,both engineering and mid-temperature figure-of-merit need to be *** this work,we report that carbon-coated boron(C/B)nanoparticles incorporation can significantly improve both mid-and high-temperature zT in *** nanoparticle inclusions can result in a homogeneous distribution of Cu:C:B interfaces responsible for both improvement of the Seebeck coefficient and significantly reduction in thermal *** mid-and high temperature thermoelectric performance with zT=1.7 at 700 K and 2.23 at 1000 K as well as significantly improved engineering zT are achieved in the C/B incorporated Cu2Se with desirable mechanical properties and cycling *** findings will stimulate further study and exploration for the Cu2Se based thermoelectric materials for broad applications in converting waste heat to electricity with competitive energy conversion efficiency.

关键词： average/engineering zT mid-temperature zT nanoparticle incorporation thermoelectric

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One-step random-walk process of nanoparticles in cement-based materials

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Journal of Central South University 2021年第6期28卷 1679-1691页

作者： Ali BAHARI Aref SADEGHI-NIK Elena CERRO-PRADA Adel SADEGHI-NIK Mandana ROODBARI Yan ZHUGE Department of Physics University of MazandaranBabolsarIran Young Researchers and Elite Club Sari BranchIslamic Azad UniversitySariIran Department of Civil Engineering Universidad Politécnica de MadridMadridSpain Department of Civil Engineering University of South AustraliaAdelaideAustralia

Efficient modelling approaches capable of predicting the behavior and effects of nanoparticles in cement-based materials are required for conducting relevant *** the microstructural characterization of a cement-nanoparticle system,this paper investigates the potential of cell-based weighted random-walk method to establish statistically significant relationships between chemical bonding and diffusion processes of nanoparticles within cement ***_(0.5)C_(0.5)O_(3)(LSCO)nanoparticles were employed to develop a discrete event system that accounts for the behavior of individual cells where nanoparticles and cement components were expected to *** stochastic model is based on annihilation(loss)and creation(gain)of a bond in the *** model considers both chemical reactions and transport mechanism of nanoparticles from cementitious cells,along with cement hydration *** approach may be useful for simulating nanoparticle transport in complex 2D cement-based materials systems.

关键词： Markov chain Monte Carlo random-walk method Fokker-Planck equation LaSr_(0.5)C_(0.5)O_(3)(LSCO) cement nanoparticle incorporation

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