Thin film nanocomposite membranes filled with bentonite nanoparticles for brackish water desalination: A novel water uptake concept

Kadhom, Mohammed1,2; Deng, Baolin3,4

2019-05

10.1016/j.micromeso.2018.12.020

MICROPOROUS AND MESOPOROUS MATERIALS   影响因子和分区

1387-1811

1873-3093

Bentonite nanoparticles (NPs) prepared via solvothermal method were filled into thin film nanocomposite (TFN) membranes for brackish water desalination. Membranes were prepared by the interfacial polymerization (IP) between m-phenylenediamine (MPD) aqueous solution and an organic solution of trimesoyl chloride (TMC); the IP reaction occurred on a support sheet of polysulfone (PSU). The NPs (<= 50 nm) were dispersed at different percentages, from 0 to 0.15%, in MPD solution during TFN membranes preparation. Scanning electron microscopy (SEM), surface area, pore size and zeta potential techniques were used to characterize the NPs. And SEM, transmission electron microscopy (TEM), attenuated total reflection Fourier transform infrared spectroscopy (ATR FT-IR), contact angle measurement, and the membranes performance assessments were used for membrane characterization. Results showed that bentonite NPs improved the performance of all TFN membranes, as tested under the conditions of: 2000 ppm NaCl solution, 25 degrees C, and 300 psi (20.68 bar) trans-membrane pressure. With 0.1% NPs, the water flux was increased from 45.6 to 58.8 L/m(2) h in comparison with the control membrane and the salt rejection was simultaneously increased from 96.25 to 97.3%.

Reverse osmosis Thin film composite membrane Nano-bentonite Water uptake mechanism Desalination

SCI ; EI

英语

通讯

Program for Guangdong Innovative and Entrepreneurial Teams[2017ZT07Z479]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000460843500010

ELSEVIER SCIENCE BV

20185106270963

Bentonite ; Composite membranes ; Contact angle ; Desalination ; Film preparation ; Fourier transform infrared spectroscopy ; High resolution transmission electron microscopy ; Membranes ; Nanocomposites ; Nanoparticles ; Pore size ; Reverse osmosis ; Scanning electron microscopy ; Sodium chloride ; Thin films ; Transmission electron microscopy ; Water filtration

Water Treatment Techniques:445.1 ; Minerals:482.2 ; Semiconducting Materials:712.1 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Chemistry:801 ; Chemical Operations:802.3 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Solid State Physics:933 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Univ Missouri, Dept Chem Engn, Columbia, MO 65211 USA
2.Northern Tech Univ, Al Dour Tech Inst, Al Dour, Saladin, Iraq
3.Univ Missouri, Dept Civil & Environm Engn, Columbia, MO 65211 USA
4.Southern Univ Sci & Technol SUSTech, Sch Environm Sci & Engn, Shenzhen, Peoples R China

Kadhom, Mohammed,Deng, Baolin. Thin film nanocomposite membranes filled with bentonite nanoparticles for brackish water desalination: A novel water uptake concept[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2019,279:82-91.

Kadhom, Mohammed,&Deng, Baolin.(2019).Thin film nanocomposite membranes filled with bentonite nanoparticles for brackish water desalination: A novel water uptake concept.MICROPOROUS AND MESOPOROUS MATERIALS,279,82-91.

Kadhom, Mohammed,et al."Thin film nanocomposite membranes filled with bentonite nanoparticles for brackish water desalination: A novel water uptake concept".MICROPOROUS AND MESOPOROUS MATERIALS 279(2019):82-91.