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- Title
Metal–organic framework-derived nanoporous titanium dioxide–heteropoly acid composites and its application in esterification.
- Authors
Zhang, Qiuyun; Luo, Qizhi; Yang, Xianju; Wu, Yaping; Yang, Binbin; Wang, Jialu; Zhang, Yutao
- Abstract
MIL-125(Ti) metal–organic framework-derived nanoporous titanium dioxide–heteropoly acid (PW–TiO2) have been synthesized by a facile hydrothermal approach and subsequent calcination, and the PW–TiO2 catalysts were investigated using various characterization technologies including FTIR, XRD, SEM, TEM, N2-physisorption, and NH3-TPD. Further, we investigated the use of PW–TiO2 composites as heterogeneous acid catalysts for the catalytic esterification of oleic acid. Among all series of catalysts, the calcined PW–TiO2 at a temperature of 350°C showed excellent activity with a high conversion of 90.5% at 160°C for 4 h. More importantly, the catalyst could be simply separated via centrifugation and reused for six cycles and shows a relatively high conversion of 74.8%.
- Subjects
ACID catalysts; HETEROGENEOUS catalysts; OLEIC acid; TITANIUM dioxide; METAL-organic frameworks; ESTERIFICATION; NANOPOROUS materials
- Publication
Green Processing & Synthesis, 2021, Vol 10, Issue 1, p284
- ISSN
2191-9542
- Publication type
Article
- DOI
10.1515/gps-2021-0029