• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >The influence of dispersed phases on polyamide/ZIF-8 nanofiltration membranes for dye removal from water
【24h】

The influence of dispersed phases on polyamide/ZIF-8 nanofiltration membranes for dye removal from water

机译：聚酰胺/ ZIF-8纳离子膜染料中染料去除染料的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To investigate the influence of different dispersed phases on polyamide (PA)/ZIF-8 membrane properties, three different fabrication methods for dispersing ZIF-8 nanoparticles were developed to prepare the PA/ZIF-8(A) membranes (in aqueous phases), PA/ZIF-8(O) membranes (in organic phases), and PA/ZIF-8(B) membrane (in both the aqueous and organic phases), respectively. These PA/ZIF-8 membranes were characterized in detail by XRD, DLS, XPS, FTIR, SEM, AFM, and contact angle measurements, the results showed that the structure properties of the PA/ZIF-8 membranes were significantly dependent on the dispersed phases and ZIF-8 concentrations. The nanofiltration performance of the PA/ZIF-8 membranes was investigated for application in removing dye (Congo red) from water. For the PA/ZIF-8(A) and PA/ZIF-8(O) membranes, the flux and rejection were both improved at 0.05-0.15% (w/v) ZIF-8 concentration in a single phase and the PA/ZIF-8(O) membranes exhibited slightly higher fluxes than the PA/ZIF-8(A) membranes due to the better dispersion of hydrophobic ZIF-8 in organic phases. The PA/ZIF-8(B) membrane prepared by 0.10% (w/v) ZIF-8 concentration in both the aqueous and organic phases showed the best membrane performance among all prepared PA/ZIF-8 membranes: the flux significantly increased to two times that of the pure PA membrane, and the rejection was nearly 100%. Compared with the PA/ZIF-8(A) and PA/ZIF-8(O) membranes, the improvement on membrane performance of the PA/ZIF-8(B) membrane was achieved by a combination of the high ZIF-8 loading, good ZIF-8 distribution, and fewer ZIF-8 aggregates in the PA/ZIF-8 selective layer.
机译：为了研究不同分散相对聚酰胺（PA）/ ZIF-8膜性能的影响，开发了三种不同的制造方法，用于分散ZIF-8纳米颗粒以制备PA / ZIF-8（A）膜（在水相中）， PA / ZIF-8（O）膜（有机相中）和PA / ZIF-8（B）膜（在水和有机阶段）。这些PA / ZIF-8膜通过XRD，DLS，XPS，FTIR，SEM，AFM和接触角测量进行了详细描述，结果表明，PA / ZIF-8膜的结构性质显着取决于分散的阶段和ZIF-8浓度。研究了PA / ZIF-8膜的纳米过滤性能，用于从水中除去染料（刚果红）。对于PA / ZIF-8（A）和PA / ZIF-8（O）膜，在单相和PA / PA / PA /均在0.05-0.15％（w / v）ZIF-8浓度下提高助熔剂和排斥。由于在有机相中疏水ZIF-8更好地分散，ZIF-8（O）膜比PA / ZIF-8（A）膜表现出略高的助焊剂。在含水和有机相中制备的PA / ZIF-8（b）膜在水性和有机相中制备的0.10％（w / v）ZIF-8浓度显示出所有制备的PA / ZIF-8膜中的最佳膜性能：通量显着增加至纯PA膜的两倍，排斥率近100％。与PA / ZIF-8（A）和PA / ZIF-8（O）膜相比，通过高ZIF-8负载的组合实现了PA / ZIF-8（B）膜的膜性能的改善，良好的ZIF-8分布，并且在PA / ZIF-8选择层中较少的ZIF-8聚集体。

著录项

  • 来源
    《RSC Advances》 |2015年第63期|共13页
  • 作者

    Wang Luying; Fang Manquan; Liu Jing; He Jing; Deng Lihong; Li Jiding; Lei Jiandu;

  • 作者单位

    Beijing Forestry Univ MOE Key Lab Wooden Mat Sci &

    Applicat Beijing 100083 Peoples R China;

    Tsinghua Univ Dept Chem Engn Beijing 100084 Peoples R China;

    Beijing Forestry Univ MOE Key Lab Wooden Mat Sci &

    Applicat Beijing 100083 Peoples R China;

    Beijing Forestry Univ MOE Key Lab Wooden Mat Sci &

    Applicat Beijing 100083 Peoples R China;

    Beijing Forestry Univ MOE Key Lab Wooden Mat Sci &

    Applicat Beijing 100083 Peoples R China;

    Tsinghua Univ Dept Chem Engn Beijing 100084 Peoples R China;

    Beijing Forestry Univ MOE Key Lab Wooden Mat Sci &

    Applicat Beijing 100083 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号