Issue 25, 2023

Kinetics of photocatalytic degradation of organic compounds: a mini-review and new approach

Abstract

Organic compounds are widespread pollutants in wastewater, causing significant risks for living organisms. In terms of advanced oxidation processes, photocatalysis is known as an effective technology for the oxidation and mineralization of numerous non-biodegradable organic contaminants. The underlying mechanisms of photocatalytic degradation can be explored through kinetic studies. In previous works, Langmuir–Hinshelwood and pseudo-first-order models were commonly applied to fit batch-mode experimental data, revealing critical kinetic parameters. However, the application or combination conditions of these models were inconsistent or ignored. This paper briefly reviews kinetic models and various factors influencing the kinetics of photocatalytic degradation. In this review, kinetic models are also systemized by a new approach to establish a general concept of a kinetic model for the photocatalytic degradation of organic compounds in an aqueous solution.

Graphical abstract: Kinetics of photocatalytic degradation of organic compounds: a mini-review and new approach

Supplementary files

Article information

Article type
Review Article
Submitted
25 Mar 2023
Accepted
24 May 2023
First published
05 Jun 2023
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 16915-16925

Kinetics of photocatalytic degradation of organic compounds: a mini-review and new approach

H. D. Tran, D. Q. Nguyen, P. T. Do and U. N. P. Tran, RSC Adv., 2023, 13, 16915 DOI: 10.1039/D3RA01970E

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