CoAl2O4/Co3O4/boron and nitrogen doped biochar for round-the-clock ultra-efficient degradation of 4-nitrophenol with peroxymonosulfate
- 1Ningxia Key Laboratory of Green Catalytic Materials and Technology, Ningxia Normal University Guyuan 756000 China
Abstract
Developing a new strategy to boost the degradation efficiency of photocatalysts for toxic phenolic compounds in peroxymonosulfate (PMS)-based degradation processes was essential but remained an challenging task. Our study proposed the one-pot construction of CoAl2O4/Co3O4/boron and nitrogen doped biochar (CoAl2O4/Co3O4/BNC) to accelerate the PMS activation and enable ultra-fast degradation of 80 mg L−1 nitrophenol (4-NiP). Radical species (˙OH, SO4˙−, and h+) and non-radical (1O2) played crucial roles during the degradation process. Additionally, 4-NiP was effectively degraded across the full pH range. The catalyst's stability in simulated real aqueous environments was evaluated, demonstrating that the CoAl2O4/Co3O4/BNC exhibited excellent recyclability and anti-interference capability during degradation. Under UV-visible light irradiation, 80 mg L−1 of 4-NiP was degraded within 10 min, it has been demonstrated that illumination accelerates the activation of PMS and the photocatalytic degradation rate of 4-NiP. Furthermore, the degradation efficiency exceeded 95% for seven types of organic pollutants in different water matrices. Seven types of organic pollutants included levofloxacin (LEV), tetracycline (TC), doxycycline hydrochloride (DOX), ciprofloxacin (CIP), 2-chloro-4-nitrophenol (2C4Nip), 2-chloro-6-nitrophenol (2C6Nip), these results confirmed the capability of CoAl2O4/Co3O4/BNC to activate PMS for degrading organic pollutants in wastewater.
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BibTeX
@article{guo2026coal2o4co3o4boron,
title = {{CoAl2O4/Co3O4/boron and nitrogen doped biochar for round-the-clock ultra-efficient degradation of 4-nitrophenol with peroxymonosulfate}},
author = {Haoran Guo and Zixuan Xu and Xiaoli ding and He Li and Tiaobin Zhao and Xiaoni Qi and Zhenliang Li},
journal = {RSC advances},
year = {2026},
month = oct,
doi = {10.1039/d6ra08339k},
url = {https://europepmc.org/article/PMC/PMC13660023},
note = {CC BY-NC},
}
RIS
TY - JOUR
TI - CoAl2O4/Co3O4/boron and nitrogen doped biochar for round-the-clock ultra-efficient degradation of 4-nitrophenol with peroxymonosulfate
AU - Haoran Guo
AU - Zixuan Xu
AU - Xiaoli ding
AU - He Li
AU - Tiaobin Zhao
AU - Xiaoni Qi
AU - Zhenliang Li
PY - 2026
DA - 2026/10/13
JO - RSC advances
DO - 10.1039/d6ra08339k
UR - https://europepmc.org/article/PMC/PMC13660023
AB - Developing a new strategy to boost the degradation efficiency of photocatalysts for toxic phenolic compounds in peroxymonosulfate (PMS)-based degradation processes was essential but remained an challenging task. Our study proposed the one-pot construction of CoAl2O4/Co3O4/boron and nitrogen doped biochar (CoAl2O4/Co3O4/BNC) to accelerate the PMS activation and enable ultra-fast degradation of 80 mg L−1 nitrophenol (4-NiP). Radical species (˙OH, SO4˙−, and h+) and non-radical (1O2) played crucial roles during the degradation process. Additionally, 4-NiP was effectively degraded across the full pH range. The catalyst's stability in simulated real aqueous environments was evaluated, demonstrating that the CoAl2O4/Co3O4/BNC exhibited excellent recyclability and anti-interference capability during degradation. Under UV-visible light irradiation, 80 mg L−1 of 4-NiP was degraded within 10 min, it has been demonstrated that illumination accelerates the activation of PMS and the photocatalytic degradation rate of 4-NiP. Furthermore, the degradation efficiency exceeded 95% for seven types of organic pollutants in different water matrices. Seven types of organic pollutants included levofloxacin (LEV), tetracycline (TC), doxycycline hydrochloride (DOX), ciprofloxacin (CIP), 2-chloro-4-nitrophenol (2C4Nip), 2-chloro-6-nitrophenol (2C6Nip), these results confirmed the capability of CoAl2O4/Co3O4/BNC to activate PMS for degrading organic pollutants in wastewater.
SN - 2046-2069
ER -