4.3 Article

Enhanced boron rejection of a thin-film composite membrane by embedding additives including hydroxyl groups

期刊

DESALINATION AND WATER TREATMENT
卷 162, 期 -, 页码 112-116

出版社

DESALINATION PUBL
DOI: 10.5004/dwt.2019.24363

关键词

Boron rejection; Reverse osmosis; Thin-film composite membrane

资金

  1. MOTIE (Ministry of Trade, Industry, and Energy) [10048995]
  2. KSRC (Korea Semiconductor Research Consortium) support program for the development of the future semiconductor device

向作者/读者索取更多资源

Herein, (+/-)-3-amino-1,2-propandiol (APD) and N-methyl-D-glucamine (NMDG), which have hydroxyl groups, were respectively embedded in thin-film composite (TFC) membranes to enhance boron rejection. The membranes prepared with embedding materials (APD or NMDG) that are involved in interfacial polymerization showed an increased degree of crosslinking, which was confirmed by X-ray photoelectron spectrometry, causing a decrease of surface roughness and water flux. However, the APD and NMDG bound to the inside of the active layer enhanced boron rejection of the TFC membrane to 85.5% and 87.7%, respectively, at pH 8 due to tightening of membrane pores by the enhanced degree of crosslinking and complex formation of the additives with boric acid.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.3
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据