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http://hdl.handle.net/10773/23884
Title: | Cu-BTC metal-organic framework natural fabric composites for fuel purification |
Author: | Abdelhameed, Reda M. Emam, Hossam E. Rocha, João Silva, Artur M. S. |
Keywords: | Natural fabrics MOF Phenol Fuel purification Adsorption Reusability |
Issue Date: | May-2017 |
Publisher: | Elsevier |
Abstract: | Viscose and wool fabrics were modified by the insertion of the metal organic framework copper(II) benzene-1,3,5-tricarboxylate (Cu-BTC MOF) through two different techniques, ex situ (ex-Cu-BTC@fabric) and in situ (Cu-BTC@fabric), and the obtained new materials used to remove phenol from petroleum fractions. The copper and MOF contents were, respectively, 32.3-34.5 mg g(-1) and 102.1-110.0 mg g(-1) for in situ, and 15.6-17.3 mg g-1 and 50.0-55.2 mg g(-1), for ex situ modified fabrics. The efficiency of phenol removal from n-octane was followed the order of fabric < ex-Cu-BTC@fabric < Cu-BTC@fabric and viscose fabric exhibited much higher affinity. The highest phenol removal percentage (90%) was attained after 12 h contact time. The maximum adsorption capacity was 333 mg g(-1) for Cu-BTC@viscose and 306 mg g(-1) after 6 successive recovering cycles. The adsorption was pseudo-second order and well fitted to the Langmuir isotherm. The adsorption mechanism may occur via the (i) physical deposition into the Cu-BTC pores, (ii) hydrogen bonding between the phenol by droxy groups and those of cellulose, and (iii) Cu(II) phenol chelation. The results showed that the insertion of Cu-BTC MOF into natural fabrics is a promising way to effectively remove phenols from fuel. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/23884 |
DOI: | 10.1016/j.fuproc.2017.02.001 |
ISSN: | 0378-3820 |
Publisher Version: | https://www.sciencedirect.com/science/article/pii/S0378382016313029?via%3Dihub |
Appears in Collections: | CICECO - Artigos DQ - Artigos QOPNA - Artigos |
Files in This Item:
File | Description | Size | Format | |
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documento.pdf | 1.24 MB | Adobe PDF |
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