Full metadata record
DC Field | Value | Language |
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dc.contributor.author | 윤여민 | - |
dc.date.accessioned | 2024-08-26T16:31:18Z | - |
dc.date.available | 2024-08-26T16:31:18Z | - |
dc.date.issued | 2024 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.other | OAK-35693 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/269427 | - |
dc.description.abstract | The UIO-66 type of metal–organic frameworks (MOFs) showed excellent performance in water purification, however, the recovery difficulty for powdered UIO-66 remains challenging for the practical applications. Herein, we prepared granular adsorbents (gGO-U-N) derived from a UIO-66/GO composite and granulated them using polyacrylamide (PAM) and polyvinyl alcohol (PVA) polymers to improve F- removal capacity. The gGO-U-N resulted in C24O16Zr3 lattice contraction, improving the Coulomb interactions in Zr4+ for better F- interaction. Consequently, gGO-U-50 with 50 % (w/w) of UIO-66 mass ratio showed a higher F- adsorption capacity (102 mg g−1) than powdered UIO-66 (67 mg g−1), exhibiting high synergistic factor (fsyn = 2.1) for F- adsorption. Additionally, gGO-U-50 exhibited stable adsorption capability over a wide pH range and higher F- adsorption selectivity than gGO. Based on time-lapse Fourier transform infrared attenuated total reflection, X-ray photoelectron spectroscopy, and in situ Raman spectroscopic analysis, the Zr-O-C bond on gGO-U-50 was found to serve as the dominant F- sorption site, while the carbon–oxygen and amine groups contributed a minor portion for F- removal. Notably, the gGO-U-50 exhibited the F- water treatment cost of 1621.6 mg-F $-1, which is approximately 3 times cost-effective than the UIO-66 (632.07 mg-F $-1). Fixed-bed column experiments demonstrated that gGO-U-50 exhibited a higher F- adsorption capability (6.34 mg g−1) than other reported granular adsorbents, revealing that gGO-U-50 has the potential for F- remediation. © 2024 Elsevier B.V. | - |
dc.description.sponsorship | Elsevier B.V. | - |
dc.language | English | - |
dc.subject | Adsorption | - |
dc.subject | Fluoride removal | - |
dc.subject | Granulation | - |
dc.subject | Graphene oxide | - |
dc.subject | Metal-organic framework | - |
dc.subject | UIO-66 | - |
dc.title | Preparation of granulated UIO-66/graphene oxide using polyacrylamide/polyvinyl alcohol for selective fluoride removal: Mechanism studies via in situ surface-enhanced raman spectroscopy analysis and continuous-flow column operation | - |
dc.type | Article | - |
dc.relation.volume | 490 | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.journaltitle | Chemical Engineering Journal | - |
dc.identifier.doi | 10.1016/j.cej.2024.151217 | - |
dc.identifier.wosid | WOS:001235552700001 | - |
dc.identifier.scopusid | 2-s2.0-85191614067 | - |
dc.author.google | Yoon | - |
dc.author.google | So Yeon | - |
dc.author.google | Choong | - |
dc.author.google | Choe Earn | - |
dc.author.google | Nam | - |
dc.author.google | Seong-Nam | - |
dc.author.google | Park | - |
dc.author.google | Chang Min | - |
dc.author.google | Yeomin | - |
dc.author.google | Choi | - |
dc.author.google | Eun Ha | - |
dc.author.google | Jang | - |
dc.author.google | Min | - |
dc.contributor.scopusid | 윤여민(7402126688) | - |
dc.date.modifydate | 20240826142645 | - |