Copper Nanowire Networks: An Effective Electrochemical Peroxymonosulfate Activator toward Nitrogenous Pollutant Abatement DOI
Wentian Zheng, Shijie You, Zhiqiang Chen

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(27), P. 10127 - 10134

Published: June 14, 2023

Herein, we developed an electrochemical filtration system for effective and selective abatement of nitrogenous organic pollutants via peroxymonosulfate (PMS) activation. Highly conductive porous copper nanowire (CuNW) networks were constructed to serve simultaneously as catalyst, electrode, media. In one demonstration the CuNW network's capability, a single pass through filter (τ < 2 s) degraded 94.8% sulfamethoxazole (SMX) at applied potential −0.4 V vs SHE. The exposed {111} crystal plane triggered atomic hydrogen (H*) generation on sites, which contributed PMS reduction. Meanwhile, with involvement SMX, Cu–N bond was formed by interactions between −NH2 group SMX Cu sites CuNW, accompanied redox cycling Cu2+/Cu+, facilitated potential. different charges active made it easier withdraw electrons promote oxidation. Theoretical calculations experimental results combined suggest mechanism pollution networks. showed that efficacy degradation wide array robust across broad range solution pH complex aqueous matrices. flow-through operation outperformed conventional batch electrochemistry due convection-enhanced mass transport. This study provides new strategy environmental remediation integrating state-of-the-art material science, advanced oxidation processes, microfiltration technology.

Language: Английский

Generating dual-active species by triple-atom sites through peroxymonosulfate activation for treating micropollutants in complex water DOI Creative Commons
Qixing Zhou,

Chunlin Song,

Pengfei Wang

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(13)

Published: March 23, 2023

The peroxymonosulfate (PMS)-triggered radical and nonradical active species can synergistically guarantee selectively removing micropollutants in complex wastewater; however, realizing this on heterogeneous metal-based catalysts with single sites remains challenging due to insufficient electron cycle. Herein, we design asymmetric Co-O-Bi triple-atom Co-doped Bi2O2CO3 facilitate PMS oxidation reduction simultaneously by enhancing the transfer between sites. We propose that result an density increase Bi decrease Co sites, thereby undergoes a reaction generate SO4•- •OH at site 1O2 site. suggest synergistic effect of SO4•-, •OH, enables efficient removal mineralization without interference from organic inorganic compounds under environmental background. As result, achieves almost 99.3% sulfamethoxazole degradation 3 min k-value as high 82.95 min-1 M-1, which is superior existing reported so far. This work provides structural regulation approach control catalytic function, will guide rational Fenton-like catalysts.

Language: Английский

Citations

249
Recent advances in the applications of encapsulated transition-metal nanoparticles in advanced oxidation processes for degradation of organic pollutants: A critical review DOI
Ting Yu, Hong Chen, Tong Hu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 342, P. 123401 - 123401

Published: Oct. 18, 2023

Language: Английский

Citations

142
Enhanced and synergistic catalytic activation by photoexcitation driven S−scheme heterojunction hydrogel interface electric field DOI Creative Commons
Aiwen Wang, Meng Du,

Jiaxin Ni

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 23, 2023

The regulation of heterogeneous material properties to enhance the peroxymonosulfate (PMS) activation degrade emerging organic pollutants remains a challenge. To solve this problem, we synthesize S-scheme heterojunction PBA/MoS2@chitosan hydrogel achieve photoexcitation synergistic PMS activation. constructed photoexcited carriers undergo redox conversion with through transfer pathway driven by directional interface electric field. Multiple pathways greatly reactive oxygen species generation, leading significant increase in doxycycline degradation rate. Meanwhile, 3D polymer chain spatial structure chitosan is conducive rapid capture and electron transport advanced oxidation process, reducing use transition metal activator limiting leaching ions. There reason believe that regulated will provide new perspective for future design research on enhancing heterologous catalysis process.

Language: Английский

Citations

138
Recent advances in design and engineering of MXene-based catalysts for photocatalysis and persulfate-based advanced oxidation processes: A state-of-the-art review DOI
Paria Eghbali, Aydin Hassani, Stanisław Wacławek

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 480, P. 147920 - 147920

Published: Dec. 7, 2023

Language: Английский

Citations

120
Low-coordinated Co-N3 sites induce peroxymonosulfate activation for norfloxacin degradation via high-valent cobalt-oxo species and electron transfer DOI
Caiyun Wang, Xiaoxia Wang, Hu Wang

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 455, P. 131622 - 131622

Published: May 11, 2023

Language: Английский

Citations

99
Applications of MXene‐Based Single‐Atom Catalysts DOI Creative Commons
Xue Bai, Jingqi Guan

Small Structures, Journal Year: 2023, Volume and Issue: 4(7)

Published: Jan. 27, 2023

Single‐atom catalysts (SACs) consist of isolated metal sites on the support through stable coordination bond, which usually have high catalytic activity and selectivity. With large surface area electron tunability, metallic carbides, nitrides, or carbonic nitrides (MXenes) are suitable carriers for supporting single‐metal atoms. The abundant surface‐functional groups vacancy defects MXenes ideal anchoring Herein, advanced synthesis characterization methods MXene‐based SACs first introduced. Three strategies (adsorption at functional groups, vacancies, terminating group vacancies) appear to be feasible in ensuring non‐aggregation atoms, attributed strong bonding between atoms carrier. applications electrocatalysis (including hydrogen evolution reaction, oxygen reduction carbon dioxide nitrogen reaction), energy storage Li‐ion batteries, metal–air supercapacitors), sensors gas biological sensors) fundamentally reviewed. Finally, own insight current challenges prospects is presented.

Language: Английский

Citations

93
Unveiling the structure–activity relationships of ofloxacin degradation by Co3O4-activated peroxymonosulfate: From microstructures to exposed facets DOI
Bo Li, Huanyan Xu, Yulong Liu

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 467, P. 143396 - 143396

Published: May 10, 2023

Language: Английский

Citations

92
High-efficiency degradation of carbamazepine by the synergistic electro-activation and bimetals (FeCo@NC) catalytic-activation of peroxymonosulfate DOI

Shuaishuai Li,

Minghua Zhou, Huizhong Wu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 338, P. 123064 - 123064

Published: July 3, 2023

Language: Английский

Citations

86
Regulating the Local Electronic Structure of Copper Single Atoms with Unsaturated B,O-Coordination for Selective 1O2 Generation DOI

Peizhen Yang,

Zhenhua Cao, Yuhan Long

et al.

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(18), P. 12414 - 12424

Published: Sept. 7, 2023

Generating singlet oxygen (1O2) on single atom catalysts (SACs) in peroxymonosulfate (PMS)-based Fenton-like reactions exhibits great potential for selective degradation of contaminants complex wastewater. Clarifying the structure–activity relationship between electronic structure SACs and 1O2 generation selectivity is crucial precise design efficient catalysts, but it challenging. Herein, Cu with different structures (namely, Cu–O2X, where X = N, S, B, P, O) investigated by density functional theory calculations using adsorption terminal atoms PMS as an activity descriptor. Significantly, affected center which electron-depleted Cu-O2B site a higher atoms. Experimentally, moiety superior catalytic activation, showing nearly 100% ciprofloxacin rate 0.2250 min–1, outperforming those other counterparts. The high attributed to asymmetric accelerating faster electron transfer O–O bond stretching, lowering energy barrier key intermediates toward generation. This work provides broader perspective regulating sites at atomic level catalysts.

Language: Английский

Citations

74
Acceleration of Fe3+/Fe2+ cycle in garland-like MIL-101(Fe)/MoS2 nanosheets to promote peroxymonosulfate activation for sulfamethoxazole degradation DOI
Ke Zhu,

Wenlei Qin,

Yaping Gan

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144190 - 144190

Published: June 24, 2023

Language: Английский

Citations

70