Current Mechanism of Peroxymonosulfate Activation by Cobalt-Based Heterogeneous Catalysts in Degrading Organic Compounds DOI

Yukun Pan,

Jiazhen Cao,

Mingyang Xing

et al.

ACS ES&T Engineering, Journal Year: 2023, Volume and Issue: 4(1), P. 19 - 46

Published: Aug. 14, 2023

Persulfate based advanced oxidation processes (PS-AOPs) have been regarded as a mainstream degradation technology of organic compounds due to their high efficiency in wastewater treatment. In particular, peroxymonosulfate (PMS) has unique structure and chemical properties, which can be efficiently activated by Co-based catalysts produce active species with potential. These usually determine the subsequent an efficient process, while intrinsic reaction mechanism behind this complex process remains unclear therefore impedes continual development scientific community. Recently, density functional theory (DFT) calculations emerged powerful means identify electronic properties distinguish energy changes PMS activation system. With assistance quantum calculation, increasing investigations conducted focusing on explaining phenomenon that occurred experiments. However, these mainly contributed part sometimes even differ from each other, lacking comprehensive summary DFT calculation results. review, we introduce main uses catalytic PMS, provide recent application examples heterogeneous different structures, then discuss detail. Finally, research results method field are summarized, future focus challenges put forward, is conducive guiding practical design further PS-AOPs creating value products.

Language: Английский

Nanoconfinement in advanced oxidation processes DOI
Bo‐Tao Zhang, Zihan Yan, Yuchun Liu

et al.

Critical Reviews in Environmental Science and Technology, Journal Year: 2022, Volume and Issue: 53(12), P. 1197 - 1228

Published: Nov. 25, 2022

Bo-Tao Zhanga* , Zihan Yana, Yuchun Liua, Zhuo Chena, Yikai Zhanga & Maohong Fanb*a College of Water Sciences, Beijing Normal University, Beijing, P.R. Chinab Departments Chemical and Petroleum Engineering, University Wyoming, Laramie, USA

Language: Английский

Citations

51
Accelerated Catalytic Ozonation in a Mesoporous Carbon-Supported Atomic Fe–N4 Sites Nanoreactor: Confinement Effect and Resistance to Poisoning DOI
Wei Qu,

Manhui Luo,

Zhuoyun Tang

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(35), P. 13205 - 13216

Published: July 24, 2023

The design of a micro-/nanoreactor is great significance for catalytic ozonation, which can achieve effective mass transfer and expose powerful reaction species. Herein, the mesoporous carbon with atomic Fe-N4 sites embedded in ordered nanochannels (Fe-N4/CMK-3) was synthesized by hard-template method. Fe-N4/CMK-3 be employed as nanoreactors preferred electronic geometric microenvironments internal ozonation CH3SH. During CH3SH oxidation process, coefficient confined system sufficient O3 featured level at least 1.87 × 10-5, 34.6 times that Fe-N4/C-Si unconfined system. Detailed experimental studies theoretical calculations demonstrated anchored nanoconfinement effects regulated local structure catalyst promoted activation molecules to produce oxygen species (AOS) reactive (ROS), eventually achieving efficient into CO2/SO42-. Benefiting from high diffusion rate augmentation AOS/ROS, exhibited an excellent poisoning tolerance, along durability. This contribution provides proof-of-concept strategy accelerating sulfur-containing volatile organic compounds (VOCs) combining catalysis catalysts extended purification other gaseous pollutants.

Language: Английский

Citations

42
Strategies for enhancing peroxymonosulfate activation by heterogenous metal-based catalysis: A review DOI

Jiahao Wei,

Fan Li, Lina Zhou

et al.

Chinese Journal of Chemical Engineering, Journal Year: 2022, Volume and Issue: 50, P. 12 - 28

Published: Aug. 22, 2022

Language: Английский

Citations

41
Graphene oxide laminates intercalated with Prussian blue nanocube as a photo-Fenton self-cleaning membrane for enhanced water purification DOI
Yupeng Pan, Zhengzheng Shi, Jia Li

et al.

Journal of Membrane Science, Journal Year: 2023, Volume and Issue: 672, P. 121465 - 121465

Published: Feb. 7, 2023

Language: Английский

Citations

31
Current Mechanism of Peroxymonosulfate Activation by Cobalt-Based Heterogeneous Catalysts in Degrading Organic Compounds DOI

Yukun Pan,

Jiazhen Cao,

Mingyang Xing

et al.

ACS ES&T Engineering, Journal Year: 2023, Volume and Issue: 4(1), P. 19 - 46

Published: Aug. 14, 2023

Persulfate based advanced oxidation processes (PS-AOPs) have been regarded as a mainstream degradation technology of organic compounds due to their high efficiency in wastewater treatment. In particular, peroxymonosulfate (PMS) has unique structure and chemical properties, which can be efficiently activated by Co-based catalysts produce active species with potential. These usually determine the subsequent an efficient process, while intrinsic reaction mechanism behind this complex process remains unclear therefore impedes continual development scientific community. Recently, density functional theory (DFT) calculations emerged powerful means identify electronic properties distinguish energy changes PMS activation system. With assistance quantum calculation, increasing investigations conducted focusing on explaining phenomenon that occurred experiments. However, these mainly contributed part sometimes even differ from each other, lacking comprehensive summary DFT calculation results. review, we introduce main uses catalytic PMS, provide recent application examples heterogeneous different structures, then discuss detail. Finally, research results method field are summarized, future focus challenges put forward, is conducive guiding practical design further PS-AOPs creating value products.

Language: Английский

Citations

28