Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation

Zeng Wei Heng; Woon Chan Chong; Yean Ling Pang; Lan Ching Sim; Chai Hoon Koo

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Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation

Full Length Article | Updated：2026-01-06

- Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation
- Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation
- 中国化学工程学报（英文版） 2022年51卷第11期页码：21-34
- Affiliations：
  
  1. Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, Kajang,Selangor,Malaysia,43000
  2. Centre for Photonics and Advanced Materials Research, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, Kajang,Selangor,Malaysia,43000
- Author bio：
- Funds：
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  中图分类号：
- 纸质出版：2022
- Accepted：
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Zeng Wei Heng, Woon Chan Chong, Yean Ling Pang, 等. Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation[J]. 中国化学工程学报（英文版）, 2022,51(11):21-34.

Zeng Wei Heng, Woon Chan Chong, Yean Ling Pang, Lan Ching Sim, Chai Hoon Koo. Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation[J]. Chinese Journal of Chemical Engineering, 2022, 51(11): 21-34.
Zeng Wei Heng, Woon Chan Chong, Yean Ling Pang, 等. Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation[J]. 中国化学工程学报（英文版）, 2022,51(11):21-34. DOI：

Zeng Wei Heng, Woon Chan Chong, Yean Ling Pang, Lan Ching Sim, Chai Hoon Koo. Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation[J]. Chinese Journal of Chemical Engineering, 2022, 51(11): 21-34. DOI：

摘要

Abstract

The present work suggested the use of waste oil palm frond as an alternative precursor for nitrogen-doped carbon quantum dots (NCQDs) and proposed a straightforward

in-situ

hydrothermal method for the preparation of NCQDs/TiO

nanocomposites. The elemental composition

morphological

structural and optical characteristics of NCQDs/TiO

nanocomposites have been comprehensively investigated. The successful grafting of NCQDs on TiO

matrix was confirmed by the formation of TiOC bond and the electronic coupling between the π-states of NCQDs and the conduction band of TiO

. For the first time

the oil palm frond-derived NCQDs/TiO

was adopted in the photodegradation of methylene blue (MB) under visible-light irradiation. As a result

the photocatalytic efficiency of NCQDs/TiO

nanocomposites (86.16%) was 2.85 times higher than its counterpart TiO

(30.18%). The enhanced performance of nanocomposites was attributed to the pivotal roles of NCQDs serving as electron mediator and visible-light harvester. Besides

the optimal NCQDs loading was determined at 4 ml

while the removal efficiency of NCQDs/TiO

-4 was the highest at a catalyst dosage of 1 g·L

-1

under alkaline condition. This research work is important as it proposed a new insight to the preparation of biomass-based NCQDs/TiO

using a facile synthetic method

which offers a green and sustainable water remediation technology.

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