Mechanisms on Oxygen Activation for Efficient 2-Chlorophenol Mineralization on CoOx/BiO2–x Nanosheets Under Full-Spectrum Irradiation DOI
Tao Song,

Fu He,

Rui Yan

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(23), P. 9578 - 9585

Published: June 3, 2024

Herein, ultrathin CoOx/BiO2–x nanosheets (∼4 nm) have been in situ synthesized by using a microwave-assisted hydrothermal method. The amount-optimized display 4.7-fold higher photocatalytic activity than classical P25 TiO2 for 2-chlorophenol (2-CP) degradation under full-spectrum irradiation with exceptional mineralization. high photoactivity is attributed to the excitation-wavelength-dependent O2 activation involved mainly produced •O2– via charge separation and 1O2 through energy transfer ultraviolet–visible (UV–vis, <450 visible-near-infrared (vis-NIR, >550 light irradiation, respectively. Moreover, modified CoOx dispersion could effectively trap photogenerated holes, thereby promoting also facilitating formation of from holes. By means liquid chromatography tandem mass spectra theoretical simulation, generated nucleophilic electrophilic radicals exhibit distinct preferences attacking different sites 2-CP, resulting direct ring-opening processes ultimately enabling rapid

Language: Английский

Effects of dissolved organic matter and halogen ions on phototransformation of pharmaceuticals and personal care products in aquatic environments DOI
Fangyuan Cheng, Tingting Zhang, Hao Yang

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 469, P. 134033 - 134033

Published: March 13, 2024

Language: Английский

Citations

5
Efficient degradation of Cu-Norfloxacin complexes in wastewater by electro-activated peroxymonosulfate coupled with electrocoagulation DOI
Zhangxiong Wu,

Zhirui Fan,

Peipei Song

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 107140 - 107140

Published: Feb. 1, 2025

Language: Английский

Citations

0
Magnetic fields promote electrocatalytic CO2 reduction via subtle modulations of magnetic moments and molecular bonding DOI Creative Commons

Shilin Wei,

Weiqi Liu,

Peiyao Bai

et al.

Eco-Environment & Health, Journal Year: 2024, Volume and Issue: 3(2), P. 247 - 255

Published: Feb. 29, 2024

Introducing a magnetic-field gradient into an electrically driven chemical reaction is expected to give rise intriguing research possibilities. In this work, we elaborate on the modes and mechanisms of electrocatalytic activity (from perspective alignment magnetic moments) selectivity (at molecular level) for CO2 reduction in response external fields. We establish positive correlation between field strengths apparent current densities. This can be rationalized by formation longer-range ordering moments resulting decrease scattering conduction electrons charge-transfer resistances as strength increases. Furthermore, aided magnetic-field-equipped operando infrared spectroscopy, find that applied fields are capable weakening C–O bond key intermediate *COOH elongating length, thereby increasing faradaic efficiency electroreduction CO.

Language: Английский

Citations

3
Graphitic N-Rich Graphene for Nonradical Peroxymonosulfate Activation DOI
Junjie Zhang, Yansheng Wu, Li Zhang

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(11), P. 13134 - 13141

Published: May 29, 2024

Nitrogen-doped graphene has been regarded as one of the most promising materials for nonradical peroxymonosulfate (PMS) activation. However, facile construction nitrogen-doped and systematic investigation its PMS activation in a practical environment still far lag behind. Herein, graphitic N-rich was prepared by one-step pyrolysis urea. The obtained urea-derived (UGNG) possessed high N content 12.12 at. % proportion 41.12%, giving 4.98 %. We confirmed that donated electrons to UGNG, resulting cleavage singlet oxygen oxidation. turnover frequency oxidation reached highest value 10.5 min–1. Also, reaction could be conducted wide temperature (5–45 °C) range, even with existence common matrix species different natural water matrixes. This work presented direct conversion organic urea UGNG systematically investigated activation, which is believed helpful further use.

Language: Английский

Citations

3
Synergistic scavenging of sulfamethoxazole and hexavalent chromium in groundwater sample induced by iron-char composites activated persulfate triggering dominant electron transfer process DOI
Mingze Sun,

Shaojuan Yan,

Hang Gao

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154911 - 154911

Published: Aug. 17, 2024

Language: Английский

Citations

3
Conversion of agricultural waste to porous hydrochar for non-metallic activation of persulfate to phenol degradation via non-radical-dominated processes: Singlet oxygen and electron transfer DOI
Jianhua Qu,

Wanying Tong,

Jun Zhang

et al.

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 419, P. 138216 - 138216

Published: July 26, 2023

Language: Английский

Citations

9
Solar photo-Fenton and persulphate-based processes for landfill leachate treatment: A critical review DOI Creative Commons

E. Clemente,

Eva Domingues, Rosa M. Quinta‐Ferreira

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169471 - 169471

Published: Dec. 24, 2023

Landfilling is the most usual solid waste management strategy for residues disposal. However, it entails several drawbacks such as generation of landfill leachate that seriously threaten human life and environment due to their toxicity carcinogenic character. Among various technologies, solar photo-Fenton sulphate-based processes have proven be suitable treatment these polluted streams. This review critically summarises last three decades studies in this field. It found homogeneous process should preferably used a pre- post-treatment biological technologies standalone young, medium, mature leachates, respectively. Studies on heterogeneous are lacking so technology may scaled-up industrial applications. Sulphate radicals attractive removing both COD ammonia. no study has been reported sulphate activation treatment. discusses main advances challenges treating through AOPs, compares persulphate-based treatments, indicates future research directions contributes better understanding towards sustainable sunny not-so-sunny regions.

Language: Английский

Citations

7
Prepatterned Cyanuric Acid Template for Reaching the Theoretical Upper Limit of Nitrogen-Doped Graphene for Nonradical Oxidation DOI
Junjie Zhang,

Yongjia Hong,

Yong Chen

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(8), P. 9262 - 9268

Published: April 10, 2024

Peroxymonosulfate (PMS)-based advanced nonradical oxidation is a cutting-edge technology in environment remediation. However, the low graphitic N content greatly limits catalytic performance of N-doped graphene. Herein, almost theoretical upper-limited porous graphene (TUNPG) was obtained via pyrolysis melamine-cyanurate and 2-benzimidazolethiol at formation temperature 1000 °C. During pyrolysis, cyanuric acid decomposed into numerous N-containing gases, which exfoliated melamine-polymerized carbon nitride intermediates nanosheets. At °C, nanosheets were carbonized TUNPG with an 10.10 atom %, close to upper limit 12.5 %. The also possessed high proportion large Brunauer–Emmett–Teller surface area, enabling 6.6 times higher than that ultrahigh for degrading organics. Pathways PMS activation site theoretically explored. This work presents strategy fabrication carbonaceous materials offers insights 1O2 production atomic scale, providing new guidance developing various practical applications.

Language: Английский

Citations

2
Sulfur-nitrogen synergistic active sites enable continuous and fast removal of organic pollutants in practical water matrix DOI
Junjie Zhang,

Yongjia Hong,

Xu Tang

et al.

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 331, P. 125817 - 125817

Published: Nov. 25, 2023

Language: Английский

Citations

5
Bamboo-like Carbon Nanotubes with the Theoretical Upper-Limit N-Doping Concentration for Advanced Nonradical Oxidation DOI
Junjie Zhang,

Yongjia Hong,

Wenran Gao

et al.

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(23), P. 22283 - 22290

Published: Nov. 17, 2023

Increasing the N-doping concentration has been recognized as one of most effective strategies to improve potential properties carbonaceous materials in energy, environment, and other fields. However, instability N dopants at high temperatures makes far from theoretical upper limit. Herein, we prepared bamboo-like carbon nanotubes (BCNTs) with a theoretically upper-limited via one-step pyrolysis zinc cyanamide presence Ni ions. The optimized BCNT-5 reached 12.45 atom %, approximate limit 12.50 % carbonization temperature 1000 °C. By using peroxymonosulfate-based advanced oxidation processes an example, exhibited excellent catalytic performance for nonradical tetracycline degradation good versatility adaptability. Graphitic was demonstrated be active site peroxymonosulfate activation. Our work provided facile strategy ultrahigh morphology regulation toward different applications.

Language: Английский

Citations

4