Issue 6, 2019

Simultaneous efficient adsorption and accelerated photocatalytic degradation of chlortetracycline hydrochloride over novel Fe-based MOGs under visible light irradiation assisted by hydrogen peroxide

Abstract

In light of recent events, it is becoming extremely difficult to ignore the serious environmental pollution caused by pharmaceuticals in water. In this study, two novel metal–organic gels (MOGs), JLUE-MOG-1 and JLUE-MOG-2, were successfully synthesized using a solvothermal method and then used for photocatalytic removal of a typical pharmaceutical [chlortetracycline hydrochloride (CTC)] from water. After treatment with a freeze-drying procedure, the resultant metal–organic aerogels were obtained and their morphologies and porous structures were fully characterized using SEM, TEM, TGA, PXRD, UV-Vis, FT-IR, XPS and nitrogen adsorption measurements. The accessibility of the porousness was verified from the adsorption performance, which was investigated to keep to the pseudo-second-order kinetic model and the Langmuir isotherm model. Furthermore, the catalytic tests disclosed that JLUE-MOG-1 showed an extremely high photocatalytic activity, which largely outperformed JLUE-MOG-2 in terms of larger specific surface area and better response to visible irradiation caused by the Fe–O clusters. Furthermore, because of the synergistic effect of the Fenton-like reaction and photocatalytic process, the photocatalytic performance of JLUE-MOG-1 could be enhanced in the presence of hydrogen peroxide (H2O2). Then, the effects of photocatalyst dosage, H2O2 concentration and initial solution pH on the photocatalytic degradation of CTC were examined. Therefore, because of a combination of high porosity, hierarchical pore structures, easily accessible triazine-moieties and Fe-functionalities, an efficient and recyclable heterogeneous photocatalyst, with a high throughput and a wide operating range, for wastewater treatment was successfully achieved.

Graphical abstract: Simultaneous efficient adsorption and accelerated photocatalytic degradation of chlortetracycline hydrochloride over novel Fe-based MOGs under visible light irradiation assisted by hydrogen peroxide

Supplementary files

Article information

Article type
Research Article
Submitted
11 Jan 2019
Accepted
03 Apr 2019
First published
04 Apr 2019

Inorg. Chem. Front., 2019,6, 1388-1397

Simultaneous efficient adsorption and accelerated photocatalytic degradation of chlortetracycline hydrochloride over novel Fe-based MOGs under visible light irradiation assisted by hydrogen peroxide

M. Liu, D. Zou, T. Ma, Z. Liu and Y. Li, Inorg. Chem. Front., 2019, 6, 1388 DOI: 10.1039/C9QI00046A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements