CUED Publications database

Efficient and Rapid Photocatalytic Reduction of Hexavalent Chromium Achieved by a Phloroglucinol-Derived Microporous Polymeric Organic Framework Solid

Kostas, V and Baikousi, M and Dimos, K and Vasilopoulos, KC and Koutselas, I and Karakassides, MA (2017) Efficient and Rapid Photocatalytic Reduction of Hexavalent Chromium Achieved by a Phloroglucinol-Derived Microporous Polymeric Organic Framework Solid. Journal of Physical Chemistry C, 121. pp. 7303-7311. ISSN 1932-7447

Full text not available from this repository.

Abstract

A microporous polymeric organic framework (POF) based on phloroglucinol (phlo-POF) was for the first time evaluated on photoreduction and removal processes of hexavalent chromium (Cr ) from aqueous solutions. The phlo-POF synthesis was based on reaction of phloroglucinol and terephthalaldehyde under hydrothermal conditions. Structural and chemical characterization was performed using UV-vis-NIR diffuse reflectance spectroscopy (DRS), FT-infrared spectroscopy, and thermogravimetric methods, while surface area analysis was employed to determine other physical and surface properties. Batch experiments were conducted on contaminated water to determine the rate and extent of Cr removal and its immobilization by the phlo-POF material. The kinetic studies showed a rapid removal of Cr ions from the water in the presence of the phlo-POF, best described by the zero-order kinetic model. The efficiency of the material with UV-C irradiation on Cr reduction was compared with a well-studied material, the Degussa P-25 TiO catalyst, and found to be ∼200% higher. Cycle experiments verify the successful reuse of the phlo-POF photocatalyst for at least ten times for Cr reduction. 6+ 6+ 6+ 6+ 6+ 2

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 12 Jun 2018 01:35
Last Modified: 08 Apr 2021 06:08
DOI: 10.1021/acs.jpcc.7b00523