Sonically modified hierarchical FAU-type zeolites as active catalysts for the production of furan from furfural
Authors:
- Łukasz Kuterasiński,
- Wojciech Rojek,
- Mariusz Gackowski,
- Małgorzata Zimowska,
- P. J. Jodłowski
Abstract
In this study, the sonochemical-assisted desilication method was applied as a special and innovative way of preparing hierarchical zeolites. The physicochemical properties of the hierarchical zeolites prepared using the sonochemical route were compared with those prepared using the conventional desilication method. Commercial zeolite with FAU-type structure was desilicated with a sodium and tetrabutylammonium hydroxide aqueous solution (NaOH/TBAOH) for 30 min. The ultrasound treatment process was performed using a QSonica Q700 sonicator (Church Hill Rd, Newtown, CT, USA) equipped with a ½″ diameter horn. The average power of sonication was 60 W, and the frequency was 20 kHz. During the sonication procedure, the alkaline solution with the catalyst precursor and sonicator probe were placed in an ice bath to keep them at room temperature. The prepared catalyst samples were examined by ICP-OES, XRD, SEM, NMR, and nitrogen sorption techniques. The acidic properties of the prepared hierarchical zeolite samples were assessed by means of IR spectroscopy with ammonia and carbon monoxide sorption as probe molecules. All catalysts were studied in the decarbonylation of furfural into furan. Independently of the application of ultrasonic irradiation, desilication of zeolites with an NaOH/TBAOH mixture extracts comparable amounts of silicon, resulting in comparable crystallinity and acidity. On the other hand, the samples prepared in the presence of ultrasounds revealed higher both mesoporosity and enhanced catalytic properties in the reaction of decarbonylation of furfural into furan in comparison with their counterparts prepared using the conventional method.
- Record ID
- CUTb00112ec9dff4a48a6a7066a895053d6
- Publication categories
- ;
- Author
- Journal series
- Ultrasonics Sonochemistry, ISSN 1350-4177, e-ISSN 1873-2828
- Issue year
- 2020
- Vol
- 60
- Pages
- [1-9]
- Article number
- 104785
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 8-9; Bibliografia (liczba pozycji) - 68; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 60
- Keywords in English
- sonochemistry, desilication, mesoporosity, faujasite, furfural, furan
- DOI
- DOI:10.1016/j.ultsonch.2019.104785 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S1350417719309538 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 140
- Publication indicators
- = 6
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb00112ec9dff4a48a6a7066a895053d6/
- URN
urn:pkr-prod:CUTb00112ec9dff4a48a6a7066a895053d6
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.