Overlooked role of transition metal impurities (cobalt and nickel) substitution in tuning pyrite to activate peroxymonosulfate for degradation of emerging pollutants

被引：1
作者：
Gu, Qingcun [1 ,2 ,3 ,4 ]
Gao, Xiaoya [1 ,2 ,3 ,4 ]
Liang, Bingheng [1 ,2 ,3 ,4 ]
Liu, Xuhao [1 ,2 ,3 ,4 ]
Wang, Jiatian [1 ,2 ,3 ,4 ]
Guo, Teng [1 ,2 ,3 ,4 ]
Zhu, Wenjie [1 ,2 ,3 ,4 ]
Luo, Yongming [1 ,2 ,3 ,4 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Environm Sci & Engn, Kunming 650500, Peoples R China
[2] Innovat Team Volatile Organ Cpds Pollutants Contro, Kunming 650500, Peoples R China
[3] Higher Educ Key Lab Odorous Volatile Organ Cpds Po, Kunming 650500, Peoples R China
[4] Key Lab Yunnan Prov Synthesizing Sulfur containing, Kunming 650500, Peoples R China
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2025年 / 363卷
基金：
中国国家自然科学基金;
关键词：
Pyrite; Impurity substitution; Peroxymonosulfate; Reactive oxygen species; Degradation; OXIDATION-KINETICS; EFFICIENT; NANOSHEETS; NI; CO;
D O I：
10.1016/j.seppur.2025.132280
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Impurities play a crucial role in various catalytic systems. This study firstly investigated the effects of Ni and Co impurities in pyrite on peroxymonosulfate (PMS) activation to degrade emerging pollutants. The substitution of 6.30 % Ni and 5.64 % Co enhanced the catalytic activity of pyrite, with rate constants of 12 and 22 times greater than pure pyrite, respectively. Theoretical calculations revealed that impurities shifted PMS adsorption to a dual- site mode, leading to stronger adsorption energy and more electron transfer numbers than pure pyrite. The extension of oxygen-oxygen bond in PMS significantly promoted its cleavage to generate reactive oxygen species (particularly singlet oxygen of 74 times greater in 5.64 % Co-Py/PMS than that in the Py/PMS), which ensured the enhanced environment stability/adaptability and reduced pollutants toxicity within the 6.30 % Ni-Py and 5.64 % Co-Py systems. This study provides new insights into positively governing pyrite-based PMS advanced oxidation processes from the perspective of coexisting impurities.
引用
收藏
页数：13
相关论文
共 83 条
[41]   The role of Fe-Nx single-atom catalytic sites in peroxymonosulfate activation: Formation of surface-activated complex and non-radical pathways [J].
Miao, Wei ;
Liu, Ying ;
Wang, Dandan ;
Du, Ningjie ;
Ye, Ziwei ;
Hou, Yang ;
Mao, Shun ;
Ostrikov, Kostya .
CHEMICAL ENGINEERING JOURNAL, 2021, 423
[42]   VESTA:: a three-dimensional visualization system for electronic and structural analysis [J].
Momma, Koichi ;
Izumi, Fujio .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2008, 41 :653-658
[43]   Highly efficient adsorption and catalytic degradation of ciprofloxacin by a novel heterogeneous Fenton catalyst of hexapod-like pyrite nanosheets mineral clusters [J].
Nie, Xin ;
Li, Guiying ;
Li, Shanshan ;
Luo, Yingmei ;
Luo, Wenming ;
Wan, Quan ;
An, Taicheng .
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2022, 300
[44]   Beneficiation of pyrite from coal mining [J].
Oliveira, C. M. ;
Machado, C. M. ;
Duarte, G. W. ;
Peterson, M. .
JOURNAL OF CLEANER PRODUCTION, 2016, 139 :821-827
[45]   Engineered carbon supported single iron atom sites and iron clusters from Fe-rich Enteromorpha for Fenton-like reactions via nonradical pathways [J].
Peng, Lijng ;
Duan, Xiaoguang ;
Shang, Yanan ;
Gao, Baoyu ;
Xu, Xing .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2021, 287 (287)
[46]  
Perdew JP, 1996, PHYS REV LETT, V77, P3865, DOI 10.1103/PhysRevLett.77.3865
[47]   Pyrite nanoparticles derived from mine waste as efficient catalyst for the activation of persulfates for degradation of tetracycline [J].
Rahimi, Farzaneh ;
van der Hoek, Jan Peter ;
Royer, Sebastien ;
Javid, Allahbakhsh ;
Mashayekh-Salehi, Ali ;
Sani, Jafari .
JOURNAL OF WATER PROCESS ENGINEERING, 2021, 40
[48]   Impurities and heterogeneity in pyrite: Influences on electrical properties and oxidation products [J].
Savage, Kaye S. ;
Stefan, Daniela ;
Lehner, Stephen W. .
APPLIED GEOCHEMISTRY, 2008, 23 (02) :103-120
[49]   Pre-treatment of real pharmaceutical wastewater by heterogeneous Fenton and persulfate oxidation processes [J].
Scaria, Jaimy ;
Nidheesh, P. V. .
ENVIRONMENTAL RESEARCH, 2023, 217
[50]  
Shao PH, 2018, ADV FUNCT MATER, V28, DOI [10.1002/adfm.201870081, 10.1002/adfm.201705295]
123456789