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Fabrication of stable MWcNT bucky paper for solar-driven interfacial evaporation by coupling c-ray irradiation with borate crosslinking

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Nuclear Science and Techniques 2021年第12期32卷 13-25页

作者： Yu-Qing Qiao Yu Gu Yu-Sen Meng Hai-Xia Li Bo-Wu Zhang Jing-Ye Li MOE Key Lab of Resource chemistry Shanghai Key Lab of Rare Earth Functional MaterialsCollege of Chemistry and Materials ScienceShanghai Normal UniversityShanghai 200234China Yellow River Institute of Eco-Environmental Research Yellow River Basin Ecology and Environment AdministrationZhengzhou 450000China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China School of civil and Architectural Engineering Nanjing Tech University Pujiang InstituteNanjing 211134China

Herein,we report a facile solution process for preparing multi-walled carbon nanotube(MWcNT)bucky paper for solar-driven interfacial water *** process involves vacuum filtrating a dispersion of MWcNTs that was modified by polyvinyl alcohol(PVA)under c-ray irradiation on a cellulose acetate microporous membrane,followed by borate *** transform infrared spectroscopy,Raman spectroscopy,and thermogravimetry confirmed the success of PVA grafting onto MWcNTs and borate crosslinking between modified MWcNT *** as-prepared crosslinked MWcNT bucky papers(BBP membranes)were used as a solar absorber,by placing them on a paper-wrapped floating platform,for interfacial water evaporation under simulated solar *** BBP membranes showed good water tolerance and mechanical stability,with an evaporation rate of 0.79 kg m^(-2)h^(-1)and an evaporation efficiency of 56%under 1 sun illumination in deionized ***,the BBP membranes achieved an evaporation rate of 0.76 kg m^(-2)h^(-1)in both Nacl solution(3.5 wt%)and sulfuric acid solution(1 mol L-1),demonstrating their impressive applicability for water reclamation from brine and acidic *** evaporation rate of 0.70 kg m-2 h-1(very close to that from deionized water)was obtained from the solar evaporation of saturated Nacl solution,and the BBP membrane exhibited unexpected stability without the inference of salt accumulation on the membrane surface during long-term continuous solar evaporation.

关键词： c-ray irradiation Multi-walled carbon nanotubes Bucky paper Solar-driven interfacial water evaporation Desalination

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2-Gy whole-body irradiation significantly alters the balance of cD4^(+)cD25^(-) T effector cells and cD4^(+)cD25^(+)Foxp3^(+) T regulatory cells in mice

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cellular & Molecular Immunology 2010年第6期7卷 419-427页

作者： Yanyan Qu Baojun Zhang Shuchun Liu Aijun Zhang Tingting Wu Yong Zhao Transplantation Biology Research Division State Key Laboratory of Biomembrane and Membrane BiotechnologyInstitute of ZoologyChinese Academy of SciencesBeijingChina Key Laboratory of Radiobiology Ministry of HealthSchool of Public HealthJilin UniversityChangchunChina Department of Hematology Qilu HospitalShandong UniversityJinanChina

cD4^(+)cD25^(+) T regulatory(Treg)cells are critical in inducing and maintaining immunological self-tolerance as well as transplant *** effect of low doses of whole-body irradiation(WBI)on cD41cD251Foxp31 Treg cells has not been *** proportion,phenotypes and function of cD4^(+)cD25^(+) Treg cells were investigated 0.5,5 and 15 days after euthymic,thymectomized or allogeneic bone marrow transplanted c57BL/6 mice received 2-Gy c-rays of *** 2-Gy WBI significantly enhanced the ratios of cD41cD251 Treg cells and cD4^(+)cD25^(+)Foxp3^(+) Treg cells to cD41 T cells in peripheral blood,lymph nodes,spleens and thymi of *** cD41cD251 Treg cells of the WBI-treated mice showed immunosuppressive activities on the immune response of cD4^(+)cD25^(+) T effector cells to alloantigens or mitogens as efficiently as the control ***,2-Gy c-ray WBI significantly increased the percentage of cD4^(+)cD25^(+)Foxp3^(+) Treg cells in the periphery of either thymectomized mice or allogeneic bone marrow transplanted *** in vitro assay showed that ionizing irradiation induced less cell death in cD4^(+)cD25^(+)Foxp3^(+) Treg cells than in cD4^(+)cD25^(+) T ***,a low dose of WBI could significantly enhance the level of functional cD41cD251Foxp31 Treg cells in the periphery of naive or immunized *** enhanced proportion of cD41cD251Foxp31 Treg cells in the periphery by a low dose of WBI may make hosts more susceptible to immune tolerance induction.

关键词： cD4^(+)cD25^(+)Foxp3^(+)Treg cells Foxp3 c-ray irradiation immune tolerance

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