本文選題：靜電紡絲 + 納米纖維膜�。� 參考：《化工新型材料》2017年02期

【摘要】：通過靜電紡絲法制備聚酯(PET)納米纖維膜,并運用尿素水熱法在其表面原位生長水滑石(LDH)微晶層,得到PET@LDH納米纖維膜。采用掃描電子顯微鏡、紅外光譜儀、X-射線衍射儀和能譜儀等對PET@LDH納米纖維膜進(jìn)行表征。結(jié)果表明:水熱反應(yīng)8h,水滑石晶片良好生長在PET納米纖維表面,成功制備出PET@LDH納米纖維膜。運用電感耦合等離子體測試技術(shù)對PET@LDH納米纖維膜的除鉻效果進(jìn)行了探究,結(jié)果表明:當(dāng)Mg/Al摩爾比為2∶1,Cr(Ⅵ)溶液的pH=2~3時,此納米纖維膜吸附10d時達(dá)到吸附平衡,對Cr(Ⅵ)的平衡吸附量為14mg/g,并且符合準(zhǔn)二級動力學(xué)吸附方程。因此,PET@LDH納米纖維膜是一種有效的去除水中Cr(Ⅵ)的吸附劑,對當(dāng)前水環(huán)境的改善提供了一個可行的方法。
[Abstract]:The polyester (PET) nanofiber membrane was prepared by electrospinning, and the PET@LDH nanofiber membrane was obtained by using the urea hydrothermal method to grow the LDH microcrystalline layer in situ on its surface. The PET@ LDH nanofiber membrane was characterized by scanning electron microscope, infrared spectrometer, X- ray diffractometer and energy spectrometer. The results showed that the hydrothermal reaction was 8h, The PET@LDH nano fiber membrane was successfully prepared on the surface of PET nanofiber on the surface of the PET nanofiber. The effect of the chromium removal in the PET@LDH nanofiber membrane was investigated by inductively coupled plasma test. The results showed that when the molar ratio of Mg/Al was 2 to 1 and pH=2~3 in Cr (VI) solution, the adsorption of the nano fiber membrane to 10d reached the level of adsorption. Balance, the equilibrium adsorption amount for Cr (VI) is 14mg/g and meets the quasi two stage kinetic adsorption equation. Therefore, PET@LDH nanofiber membrane is an effective adsorbent for removing Cr (VI) in water, which provides a feasible method for the improvement of current water environment.
【作者單位】： 北京服裝學(xué)院材料科學(xué)與工程學(xué)院;北京市服裝材料研究開發(fā)與評價重點實驗室;
【基金】：國家自然科學(xué)基金項目(21274006、51503005) 北京市科技北京百名領(lǐng)軍人才工程(LJ201614) 北京市百千萬人才工程(110403000402) 北京市屬高等學(xué)校高層次人才引進(jìn)與培養(yǎng)計劃項目—北京市長城學(xué)者培育計劃(CIT&TCD20150306) 北京市屬高校創(chuàng)新能力提升計劃項目(TJSHG201310012021) 北京服裝學(xué)院創(chuàng)新團隊與優(yōu)秀人才選拔與培養(yǎng)計劃項目(2014AL-68);北京服裝學(xué)院校內(nèi)重點項目(2016A-03) 北京市服裝材料研究開發(fā)與評價重點實驗室開放課題(2015ZK-02)
【分類號】：TQ340.1
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本文編號：2088653