Research of thin film nanocomposite (TFN) membranes incorporated spherical mesoporous silica nanoparticles with carboxyl group

被引：0

作者：

Sun Y. ^{[1
,2
,3
]}

Liu S. ^{[1
]}

Deng S. ^{[4
]}

Yu L. ^{[2
]}

Lyu D. ^{[3
]}

Ma J. ^{[3
]}

Liu X. ^{[4
]}

机构：

[1] Kunshan Innovation Institute of Nanjing University, Kunshan, 215347, Jiangsu

[2] College of Life Sciences and Technology, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang

[3] State Key Laboratory of Urban Water Resource and Environment, School of Environmental, Harbin Institute of Technology, Harbin, 150090, Heilongjiang

[4] School of Chemistry and Environmental Engineering, Harbin University of Science and Technology, Harbin, 150040, Heilongjiang

来源：

Huagong Xuebao/CIESC Journal | 2020年 / 71卷

关键词：

Interfacial polymerization; Membrane; Modified with carboxyl groups; Nanoparticles; Silica; TFN;

D O I：

10.11949/0438-1157.20190920

中图分类号：

学科分类号：

摘要：

Thin film composite (TFC) membranes incorporated with inorganic nanoparticles to form thin film nanocomposite (TFN) membranes, which had attracted much attention recently. However, the instability of nanoparticles in the TFC membranes and the insufficient mechanical strength of the membranes became the main challenges. Mesoporous silica nanoparticles with an average particle size of ca. 110 nm were modified with carboxyl groups, noted as MSN-COOH and further immobilized on the functional layer of the TFC membranes. The carboxyl groups were successfully incorporated into the mesoporous channels of MSN by characterization techniques, MSN-COOH nanoparticles were successfully bonded to the surface functional layer of the TFC film and formed the crosslinked network. Our experimental results revealed that the TFN membrane hybridized with MSN-COOH demonstrated up to 56.2% improvement in water ﬂux, higher salt rejection, and improved mechanical strength compared to the control TFC membranes. Due to the addition of hydrophilic functional groups in monodisperse mesoporous nanoparticles, the hydrophilicity of the membrane surface was increased. Because of the ordered arrangement of monodisperse mesoporous nanoparticles in the matrix, the roughness of the membrane was lowered to a great extent, which was beneficial for enhancing water molecular transfer and fouling resistance of the membranes. Compared with plain TFN membranes, it had better stability and flexibility which kept the stabilization of membranes under high pressure filtration operation. © All Right Reserved.

引用

页码：454 / 460

页数：6

共 33 条

[1]

Elimelech M, Phillip W A., The future of seawater desalination: energy, technology, and the environment, Science, 333, pp. 712-717, (2011)

[2]

Shannon M A, Bohn P W, Elimelech M, Et al., Science and technology for water purification in the coing decades, Nature, 452, pp. 301-310, (2008)

[3]

Hua H Y., Research progress on reverse osmosis membrane at present, Environment and Development, 30, 6, pp. 95-96, (2018)

[4]

Cao Z, Wei Y Y, Zhao M, Et al., Progress and prospect in the development of reverse osmosis composite membrane technology, Technology of Water Treatment, 42, 9, (2016)

[5]

Soltanieh M, Gill W N., Review of reverse osmosis membrane and transport models, Chem. Eng. Commun, 12, pp. 279-363, (1981)

[6]

Otitoju T A, Saari R A, Ahmad A L., Progress in the modification of reverse osmosis (RO) membranes for enhanced performance, J. Ind. Eng. Chem, 67, pp. 52-71, (2018)

[7]

Al-Mayyahi A., Important approaches to enhance reverse osmosis (RO) thin film composite (TFC) membranes performance, Membranes, 8, (2018)

[8]

Zhao H Y, Zhang L., Molecular dynamic simulation of polyamide reverse osmosis membrane, Chemical Industry and Engineering Progress, 36, 12, pp. 4319-4328, (2017)

[9]

Pan C Y, Xu G R, Li L, Et al., Developments and perspectives on the polyamide-based reverse osmosis desalination membranes, Membrane Science and Technology, 36, 6, pp. 133-138, (2016)

[10]

Hermans S, Marien H, van Goethem C, Et al., Recent developments in thin film (nano) composite membranes for solvent resistant nanofiltration, Curr. Opin. Chem. Eng, 8, pp. 45-54, (2015)

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