Probing the Internal Microstructure of Polyamide Thin-Film Composite Membranes Using Resonant Soft X-ray Scattering

被引：21

作者：

Culp, Tyler E. ^{[1
]}

Ye, Dan ^{[1
]}

Paul, Mou ^{[4
]}

Roy, Abhishek ^{[4
]}

Behr, Michael J. ^{[5
]}

Jons, Steve ^{[4
]}

Rosenberg, Steve ^{[5
]}

Wang, Cheng ^{[6
]}

Gomez, Esther W. ^{[1
,2
]}

Kumar, Manish ^{[1
]}

Gomez, Enrique D. ^{[1
,3
]}

机构：

[1] Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Biomed Engn, University Pk, PA 16802 USA

[3] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA

[4] Dow Water & Proc Solut, Edina, MN 55439 USA

[5] Dow Chem Co USA, Analyt Sci, Midland, MI 48667 USA

[6] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA

来源：

ACS MACRO LETTERS | 2018年 / 7卷 / 08期

基金：

美国能源部;

关键词：

REVERSE-OSMOSIS MEMBRANES; STREAMING POTENTIAL MEASUREMENTS; ORGANIC SOLAR-CELLS; PHYSIOCHEMICAL PROPERTIES; NANOFILTRATION MEMBRANES; ELECTRON-MICROSCOPY; COATING LAYER; ACTIVE LAYERS; RO MEMBRANES; TEM;

D O I：

10.1021/acsmacrolett.8b00301

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Characterization of the internal morphology of thin film composite membranes used in reverse osmosis (RO) is a prerequisite for understanding the connection between microstructure and water transport properties and is necessary for the design of membranes with improved performance. Here, we examine a series of fully aromatic polyamide active layers of RO membranes that vary in crosslinking using a combination of resonant soft X-ray scattering (RSoXS), transmission electron microscopy (TEM), and atomic force microscopy (AFM). Analysis of RSoXS profiles reveals a correlation between membrane structure and crosslinking density. Through a combination of scattering contrast calculations, TEM, and AFM micrographs, we assign the dominant contribution to RSoXS data as either surface roughness or chemical heterogeneity, depending on the X-ray energy used. Altogether, our results demonstrate the utility of soft X-ray scattering to examine the microstructure of water filtration membranes.

引用

页码：927 / 932

页数：11

共 49 条

[1] X-RAY LINEAR DICHROISM MICROSCOPY [J].

ADE, H ;

HSIAO, B .

SCIENCE, 1993, 262 (5138) :1427-1429

[2] Advantages of soft X-ray absorption over TEM-EELS for solid carbon studies - a comparative study on diesel soot with EELS and NEXAFS [J].

Braun, A ;

Huggins, FE ;

Shah, N ;

Chen, Y ;

Wirick, S ;

Mun, SB ;

Jacobsen, C ;

Huffman, GP .

CARBON, 2005, 43 (01) :117-124

[3]

Collins BA, 2012, NAT MATER, V11, P536, DOI [10.1038/NMAT3310, 10.1038/nmat3310]

[4] SCATTERING BY AN INHOMOGENEOUS SOLID [J].

DEBYE, P ;

BUECHE, AM .

JOURNAL OF APPLIED PHYSICS, 1949, 20 (06) :518-525

[5] SCATTERING BY AN INHOMOGENEOUS SOLID .2. THE CORRELATION FUNCTION AND ITS APPLICATION [J].

DEBYE, P ;

ANDERSON, HR ;

BRUMBERGER, H .

JOURNAL OF APPLIED PHYSICS, 1957, 28 (06) :679-683

[6] The Future of Seawater Desalination: Energy, Technology, and the Environment [J].

Elimelech, Menachem ;

Phillip, William A. .

SCIENCE, 2011, 333 (6043) :712-717

[7] Spectral Analysis for Resonant Soft X-Ray Scattering Enables Measurement of Interfacial Width in 3D Organic Nanostructures [J].

Ferron, Thomas ;

Pope, Michael ;

Collins, Brian A. .

PHYSICAL REVIEW LETTERS, 2017, 119 (16)

[8] Nanoscale heterogeneity of polyamide membranes formed by interfacial polymerization [J].

Freger, V .

LANGMUIR, 2003, 19 (11) :4791-4797

[9] Topographic measurement of buried thin-film interfaces using a grazing resonant soft x-ray scattering technique [J].

Gann, Eliot ;

Watson, Anne ;

Tumbleston, John R. ;

Cochran, Justin ;

Yan, Hongping ;

Wang, Cheng ;

Seok, Jaewook ;

Chabinyc, Michael ;

Ade, Harald .

PHYSICAL REVIEW B, 2014, 90 (24)

[10] Reverse osmosis desalination: Water sources, technology, and today's challenges [J].

Greenlee, Lauren F. ;

Lawler, Desmond F. ;

Freeman, Benny D. ;

Marrot, Benoit ;

Moulin, Philippe .

WATER RESEARCH, 2009, 43 (09) :2317-2348

← 1 2 3 4 5 →