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Updated: Jun 10, 2025

A Complete Method for Evaluating the Performance of Photocatalysts for the Degradation of Antibiotics in Environmental Remediation
Published on: October 6, 2022
Efficient photodegradation of carbamazepine by organocatalysts incorporating a third component with a more
Min Long1,2, Ciyuan Huang1, Xiao Huang1
1Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China. huangxiao@gxu.edu.cn.
Abstract:
Carbamazepine, recognized as one of the most prevalent pharmaceuticals, has attracted considerable attention due to its potential impact on ecosystems and human health. In response, this work synthesized and characterized a novel environmentally friendly and cost-effective organic semiconductor photocatalyst PM6:Y6:ITCPTC loaded with coconut shell charcoal, and then investigated its performance for photocatalytic removal. Remarkably, carbamazepine demonstrated a photodegradation efficiency exceeding 99% within a mere 20 minutes of exposure to one sunlight intensity, and also showed good effectiveness under a low light intensity of 50 W. The catalyst exhibited exceptional reusability and stability, maintaining degradation efficiency between 95-99% over 25 cycles. The high photocatalytic activity of PM6:Y6:ITCPTC is primarily attributed to the incorporation of the third component (named ITCPTC), which enhances exciton dissociation and carrier transfer, generating superoxide radicals, electrons, and holes. Furthermore, the plausible degradation pathway of carbamazepine was proposed based on the measured intermediates and density functional theory calculations.
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