SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 41 ›› Issue (1): 267-277.DOI: 10.1016/j.cjche.2021.11.007

• Separation Science and Engineering • 上一篇    下一篇

Charged modified tight ceramic ultrafiltration membranes for treatment of cationic dye wastewater

Chen Zhao1, Yahan Ye1, Xianfu Chen1, Xiaowei Da2, Minghui Qiu1, Yiqun Fan1   

  1. 1 State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211800, China;
    2 Nanjing Membrane Material Industry Technology Institute Co, Ltd, Nanjing 211800, China
  • 收稿日期:2021-06-25 修回日期:2021-11-04 出版日期:2022-01-28 发布日期:2022-02-25
  • 通讯作者: Xiaowei Da,E-mail address:243046395@qq.com;Minghui Qiu,E-mail address:qiumh_1201@njtech.edu.cn
  • 基金资助:
    This study was financially supported by the Project for Natural Science Research of Jiangsu Higher Education Institutions (20KJA530001), the National Natural Science Foundation of China (22078147, 21808107), the Natural Science Foundation of Jiangsu Province (BK20180163) and the Research Project of National Synthetic Biotechnology Innovation Centre (TSBICIP-KJGG-002-16).

Charged modified tight ceramic ultrafiltration membranes for treatment of cationic dye wastewater

Chen Zhao1, Yahan Ye1, Xianfu Chen1, Xiaowei Da2, Minghui Qiu1, Yiqun Fan1   

  1. 1 State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211800, China;
    2 Nanjing Membrane Material Industry Technology Institute Co, Ltd, Nanjing 211800, China
  • Received:2021-06-25 Revised:2021-11-04 Online:2022-01-28 Published:2022-02-25
  • Contact: Xiaowei Da,E-mail address:243046395@qq.com;Minghui Qiu,E-mail address:qiumh_1201@njtech.edu.cn
  • Supported by:
    This study was financially supported by the Project for Natural Science Research of Jiangsu Higher Education Institutions (20KJA530001), the National Natural Science Foundation of China (22078147, 21808107), the Natural Science Foundation of Jiangsu Province (BK20180163) and the Research Project of National Synthetic Biotechnology Innovation Centre (TSBICIP-KJGG-002-16).

摘要: Tight ceramic ultrafiltration membranes have been proven to exhibit good rejection performance for reactive dye wastewater at high temperatures because of their high thermal and chemical resistance. However, the application of ceramic membranes for the treatment of cationic dye wastewater is challenging because of their surface charge. In this study, a ceramic membrane is modified by grafting aminosilane (KH-551) to enhance the positive charge of the membrane surface. The rejection performance of the charged modified ceramic membrane toward the methylene blue solution is significantly improved. The modification substance is bonded to the ceramic membrane surface via covalent bonding, which imparts good thermal stability. The modified ceramic membrane exhibits stable separation performance toward the methylene blue solution. Overall, this study provides valuable guidance for the adjustment of the ceramic membrane surface charge for treating industrial cationic dye wastewater.

关键词: Membranes, Ultrafiltration, Separation, Modification, Surface charge, Dye wastewater treatment

Abstract: Tight ceramic ultrafiltration membranes have been proven to exhibit good rejection performance for reactive dye wastewater at high temperatures because of their high thermal and chemical resistance. However, the application of ceramic membranes for the treatment of cationic dye wastewater is challenging because of their surface charge. In this study, a ceramic membrane is modified by grafting aminosilane (KH-551) to enhance the positive charge of the membrane surface. The rejection performance of the charged modified ceramic membrane toward the methylene blue solution is significantly improved. The modification substance is bonded to the ceramic membrane surface via covalent bonding, which imparts good thermal stability. The modified ceramic membrane exhibits stable separation performance toward the methylene blue solution. Overall, this study provides valuable guidance for the adjustment of the ceramic membrane surface charge for treating industrial cationic dye wastewater.

Key words: Membranes, Ultrafiltration, Separation, Modification, Surface charge, Dye wastewater treatment