@article{ART003241587},
author={Ren Zhiyuan and Chang Wei and Tian Ke and Yao Peiqi and Liu Bin and Li Yunfeng and Zhang Runze},
title={Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI)},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={3},
pages={1445-1459},
doi={10.1007/s42823-025-00878-7}
TY - JOUR
AU - Ren Zhiyuan
AU - Chang Wei
AU - Tian Ke
AU - Yao Peiqi
AU - Liu Bin
AU - Li Yunfeng
AU - Zhang Runze
TI - Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI)
JO - Carbon Letters
PY - 2025
VL - 35
IS - 3
PB - Korean Carbon Society
SP - 1445
EP - 1459
SN - 1976-4251
AB - This study details the synthesis and characterization of phosphorus-sulfur co-doped graphitic carbon nitride quantum dots (PSQ) and their integration into g-C3N4 (CN) to form PSQ/CN composites for the enhanced photocatalytic reduction of Cr(VI) and fluorescence detection. Incorporating PSQ into CN was found to significantly improve light absorption, narrow the band gap, and enhance charge separation efficiency. Notably, the composite material exhibits superior photocatalytic performance, especially in acidic environments. Photocatalytic assessments utilizing Cr(VI) demonstrated that the PSQ/CN composite outperformed both undoped and singly doped materials, indicating its superior photocatalytic activity. Additionally, phosphorus-sulfur co-doping markedly increased the fluorescence quantum yield of PSQ. The fluorescence intensity exhibited a linear decrease with increasing Cr(VI) concentrations, enabling sensitive and selective detection of Cr(VI) with a detection limit as low as 1.69 μmol/L. Collectively, the PSQ/CN composite and PSQ highlight their potential for photocatalysis and fluorescence-based detection of Cr(VI), providing high sensitivity, selectivity, and synergistic interactions within the composite material.
KW - Carbon nitride quantum dots;Photocatalytic degradation;Fluorescent;Phosphorus-sulfur co-doping
DO - 10.1007/s42823-025-00878-7
ER -
Ren Zhiyuan, Chang Wei, Tian Ke, Yao Peiqi, Liu Bin, Li Yunfeng and Zhang Runze. (2025). Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI). Carbon Letters, 35(3), 1445-1459.
Ren Zhiyuan, Chang Wei, Tian Ke, Yao Peiqi, Liu Bin, Li Yunfeng and Zhang Runze. 2025, "Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI)", Carbon Letters, vol.35, no.3 pp.1445-1459. Available from: doi:10.1007/s42823-025-00878-7
Ren Zhiyuan, Chang Wei, Tian Ke, Yao Peiqi, Liu Bin, Li Yunfeng, Zhang Runze "Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI)" Carbon Letters 35.3 pp.1445-1459 (2025) : 1445.
Ren Zhiyuan, Chang Wei, Tian Ke, Yao Peiqi, Liu Bin, Li Yunfeng, Zhang Runze. Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI). 2025; 35(3), 1445-1459. Available from: doi:10.1007/s42823-025-00878-7
Ren Zhiyuan, Chang Wei, Tian Ke, Yao Peiqi, Liu Bin, Li Yunfeng and Zhang Runze. "Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI)" Carbon Letters 35, no.3 (2025) : 1445-1459.doi: 10.1007/s42823-025-00878-7
Ren Zhiyuan; Chang Wei; Tian Ke; Yao Peiqi; Liu Bin; Li Yunfeng; Zhang Runze. Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI). Carbon Letters, 35(3), 1445-1459. doi: 10.1007/s42823-025-00878-7
Ren Zhiyuan; Chang Wei; Tian Ke; Yao Peiqi; Liu Bin; Li Yunfeng; Zhang Runze. Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI). Carbon Letters. 2025; 35(3) 1445-1459. doi: 10.1007/s42823-025-00878-7
Ren Zhiyuan, Chang Wei, Tian Ke, Yao Peiqi, Liu Bin, Li Yunfeng, Zhang Runze. Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI). 2025; 35(3), 1445-1459. Available from: doi:10.1007/s42823-025-00878-7
Ren Zhiyuan, Chang Wei, Tian Ke, Yao Peiqi, Liu Bin, Li Yunfeng and Zhang Runze. "Phosphorus-sulfur co-doped carbon nitride quantum dots for enhanced photocatalytic reduction and fluorescence detection of Cr (VI)" Carbon Letters 35, no.3 (2025) : 1445-1459.doi: 10.1007/s42823-025-00878-7
