Synthesis and Characterization of Zirconium-Based MOFs and Catalytic Preparation of Biodiesel
Clc Number:

TQ 021.8

Fund Project:

Hainan Provincial Key Project (ZDYF2018134)

  • Article
  • | |
  • Metrics
  • | |
  • Related [20]
  • | | |
  • Comments
    Abstract:

    UiO-66 and its derivatives were synthesized by solvothermal synthesis of different organic ligands, such as terephthalic acid, 2-nitroterephthalic acid, 2-aminoterephthalic acid and 2-hydroxyterephthalic acid. In the synthesis, formic acid, acetic acid, benzoic acid and hydrochloric acid were used as different modulators to modulate the structure of zirconium-based MOFs. The zirconium-based MOFs were characterized by XRD, SEM and FT-IR. The effects of different modulators and additions on the morphology and structure of zirconium-based MOFs were investigated. It was found that the different modulators have different effects on the formation of zirconium-based MOFs. The hydrochloric acid and acetic acid mixture modulators can significantly improve the crystallinity of UiO-66. When the molar ratio of the regulator to ZrCl4 was 30, the benzoic acid modulator can obtain uniform UiO-66 octahedral crystal with dimensions of 500 nm, the formic acid modulators increased the specific surface area of UiO-66 from 1173.3 m2/g to 1973.8 m2/g. Three kinds of zirconium-based MOFs were selected as esterification reaction catalysts to obtain esterified oil. UiO-66-NH2 has good catalytic activity, and its free fatty acid conversion rate was 50.7%. The yield of biodiesel obtained by the reaction of KOH catalyzed esterification oil was 51.6%, and the methyl ester rate was as high as 99% or more.

    Reference
    Cited by
    Comments
    Comments
    分享到微博
    Submit
Get Citation
Share
Article Metrics
  • Abstract:1364
  • PDF: 1
  • HTML: 0
  • Cited by: 0
History
  • Received:May 06,2019
  • Revised:July 06,2019
  • Adopted:July 09,2019
  • Online: November 27,2019
Article QR Code