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Berna Topuz
Researcher at Ankara University
Publications - 34
Citations - 875
Berna Topuz is an academic researcher from Ankara University. The author has contributed to research in topics: Membrane & Permeance. The author has an hindex of 13, co-authored 31 publications receiving 612 citations. Previous affiliations of Berna Topuz include Middle East Technical University & University of Minnesota.
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Journal ArticleDOI
Oriented MFI Membranes by Gel-Less Secondary Growth of Sub-100 nm MFI-Nanosheet Seed Layers.
Kumar Varoon Agrawal,Berna Topuz,Tung Cao Thanh Pham,Thanh Huu Nguyen,Nicole Sauer,Neel Rangnekar,Han Zhang,Katabathini Narasimharao,Sulaiman Nasir Basahel,Lorraine F. Francis,Christopher W. Macosko,Shaeel A. Al-Thabaiti,Michael Tsapatsis,Kyung Byung Yoon +13 more
TL;DR: A zeolite membrane fabrication process combining 2D-zeolite nanosheet seeding and gel-free secondary growth is described, which produces selective molecular sieve films that are as thin as 100 nm and exhibit record high permeances for xylene- and butane-isomers.
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Open-Pore Two-Dimensional MFI Zeolite Nanosheets for the Fabrication of Hydrocarbon-Isomer-Selective Membranes on Porous Polymer Supports.
Han Zhang,Qiang Xiao,Xianghai Guo,Najun Li,Prashant Kumar,Neel Rangnekar,Mi Young Jeon,Shaeel A. Al-Thabaiti,Katabathini Narasimharao,Sulaiman Nasir Basahel,Berna Topuz,Frank J. Onorato,Christopher W. Macosko,K. Andre Mkhoyan,Michael Tsapatsis +14 more
TL;DR: Two-dimensional zeolite nanosheets that do not contain any organic structure-directing agents were prepared from a multilamellar MFI (ML-MFI), and exhibit an n-butane/isobutane selectivity of 5.4 and can be used for coating applications.
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Solution‐processable exfoliated zeolite nanosheets purified by density gradient centrifugation
Kumar Varoon Agrawal,Berna Topuz,Zheyu Jiang,Kevin Nguenkam,Bahman Elyassi,Lorraine F. Francis,Michael Tsapatsis,Marta Navarro +7 more
TL;DR: In this paper, the removal of polystyrene from the nanosheet suspension in toluene is demonstrated by centrifugation of the suspension across chlorobenzene as confirmed by thermogravimetric analysis (TGA) data and transmission electron microscopy images.
Journal ArticleDOI
Synthesis of ZIF-7, ZIF-8, ZIF-67 and ZIF-L from recycled mother liquors
TL;DR: In this paper, the organic linker was 2-methyl imidazole for ZIF-8, Zif-L, ZIF 7 and ZIF -67.
Journal ArticleDOI
2D Zeolite Coatings: Langmuir-Schaefer Deposition of 3 nm Thick MFI Zeolite Nanosheets.
Neel Rangnekar,Meera Shete,Kumar Varoon Agrawal,Berna Topuz,Prashant Kumar,Qiang Guo,Issam Ismail,Abdulrahman O. Al-Youbi,Sulaiman N. Basahel,Katabathini Narasimharao,Christopher W. Macosko,K. Andre Mkhoyan,Shaeel A. Al-Thabaiti,Benjamin L. Stottrup,Michael Tsapatsis +14 more
TL;DR: Different methods for secondary growth resulted in preferentially oriented thin films of MFI, which had sub-12-nm thickness in certain cases, indicating well-intergrown MFI films that are strongly attached to the substrate.