Choice of Apposite Dispersing Medium for Silica Nanoparticles Leading to Their Effective Embedment in Nanocomposite Nanofiltration Membranes

被引：19

作者：

De Guzman, Manuel Reyes ^{[1
]}

Ang, Micah Belle Marie Yap ^{[2
,3
]}

Lai, Cheng-Lee ^{[4
]}

Trilles, Calvin A. ^{[5
]}

Pereira, John Marseline ^{[5
]}

Aquino, Ruth R. ^{[5
]}

Huang, Shu-Hsien ^{[2
,3
,6
]}

Lee, Kueir-Rarn ^{[2
,3
]}

机构：

[1] Sichuan Univ Sci & Engn, Coll Mat Sci & Engn, Mat Corros & Protect Key Lab Sichuan Prov, Zigong 643000, Peoples R China

[2] Chung Yuan Christian Univ, R&D Ctr Membrane Technol, Taoyuan 32023, Taiwan

[3] Chung Yuan Christian Univ, Dept Chem Engn, Taoyuan 32023, Taiwan

[4] Chia Nan Univ Pharm & Sci, Dept Environm Engn & Sci, Tainan 717, Taiwan

[5] Mapua Univ, Sch Chem Biol & Mat Engn & Sci, Manila 1002, Philippines

[6] Natl Ilan Univ, Dept Chem & Mat Engn, Yilan 26047, Taiwan

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2019年 / 58卷 / 38期

关键词：

INTERFACIAL POLYMERIZATION; DIFFERENT SURFACTANTS; IMPROVED PERFORMANCE; HIGH-FLUX; FABRICATION; SEPARATION; MORPHOLOGY; CHLORIDE;

D O I：

10.1021/acs.iecr.9b03456

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Thin-film nanocomposite (TFN) membranes enjoy advantages over the traditional membranes for water purification purposes. TFN membranes are fabricated primarily through interfacial polymerization: diamines are reacted with acyl chlorides. Nanoparticles are added either to aqueous or organic solutions. A polyamide layer forms at the interface of two immiscible phases. In this present study, silica nanoparticles were dispersed in water or n-hexane medium. Scanning electron microscopy-energy dispersive X-ray spectroscopy revealed that dispersing the nanoparticles in n-hexane led to the embedment of more silica in the polyamide layer. A cross-flow nanofiltration setup was used to evaluate the membrane performance, with pure water and different feed salt solutions as feed. The results demonstrated that dispersing the nanoparticles in water led to the formation of a defective polyamide layer. However, dispersion in n-hexane resulted in a TFN membrane with a high separation performance. Moreover, the membrane exhibited stability for 62 h.

引用

页码：17937 / 17944

页数：8

共 39 条

[1] Influence of polyvinyl alcohol on the surface morphology, separation and anti-fouling performance of the composite polyamide nanofiltration membranes [J].