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Journal ArticleDOI

Metal-free carbocatalysis in advanced oxidation reactions

TLDR
This Account showcases the recent contributions to metal-free catalysis in advanced oxidation, including design of nanocarbon catalysts, exploration of intrinsic active sites, and identification of reactive species and reaction pathways, and offers perspectives on carbocatalysis for future environmental applications.
Abstract
ConspectusCatalytic processes have remarkably boosted the rapid industrializations in chemical production, energy conversion, and environmental remediation. As one of the emerging applications of carbocatalysis, metal-free nanocarbons have demonstrated promise as catalysts for green remediation technologies to overcome the poor stability and undesirable metal leaching in metal-based advanced oxidation processes (AOPs). Since our reports of heterogeneous activation of persulfates with low-dimensional nanocarbons, the novel oxidative system has raised tremendous interest for degradation of organic contaminants in wastewater without secondary contamination. In this Account, we showcase our recent contributions to metal-free catalysis in advanced oxidation, including design of nanocarbon catalysts, exploration of intrinsic active sites, and identification of reactive species and reaction pathways, and we offer perspectives on carbocatalysis for future environmental applications.The journey starts with the dis...

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Citations
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Journal ArticleDOI

Single‐Atom Iron Anchored Tubular g‐C3N4 Catalysts for Ultrafast Fenton‐Like Reaction: Roles of High‐Valency Iron‐Oxo Species and Organic Radicals

TL;DR: In this paper , single-atom iron anchored nitrogen-rich nanotubes (FeCNs) are designed and synthesized by a facile approach, and eco-friendly peracetic acid (PAA) is selected as the oxidant for Fenton-like reactions.
Journal ArticleDOI

Influence of surface functionalities of pyrogenic carbonaceous materials on the generation of reactive species towards organic contaminants: A review

TL;DR: In this paper, the surface functionalities of carbonaceous materials (PCM) have been investigated for the degradation of organic contaminants, including oxygen, peroxides, persulfate, ozone, and persistent free radicals.
Journal ArticleDOI

Mechanism of metal sulfides accelerating Fe(II)/Fe(III) redox cycling to enhance pollutant degradation by persulfate: Metallic active sites vs. reducing sulfur species.

TL;DR: A novel strategy for improving the performance of PS activation for environmental remediation and a comprehensive understanding of the mechanism of MeSx enhancing Fenton-like reactions are provided.
Journal ArticleDOI

Fe3O4@CNT as a high-effective and steady chainmail catalyst for tetracycline degradation with peroxydisulfate activation: Performance and mechanism

TL;DR: In this paper, Fe3O4 NPs were confined in the chainmail of multi-walled carbon nanotubes (CNTs) with confinement effect, and peroxydisulfate (PDS) was activated to degrade tetracycline (TL) in aqueous solution.
Journal ArticleDOI

Phosphorus-rich microorganism-enabled synthesis of cobalt phosphide/carbon composite for bisphenol A degradation through activation of peroxymonosulfate

TL;DR: In this article, the authors attempted to recover and utilize P from microorganism to obtain metal phosphide/carbon composites using P-rich microorganisms and Co2+ as precursors.
References
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Journal ArticleDOI

Sulfur and Nitrogen Dual-Doped Mesoporous Graphene Electrocatalyst for Oxygen Reduction with Synergistically Enhanced Performance†

TL;DR: In this paper, Mesoporous graphene doped with both N and S atoms (N-S-G) was prepared in one step and studied as an electrochemical catalyst for the oxygen reduction reaction (ORR).
Journal ArticleDOI

Generation of sulfate radical through heterogeneous catalysis for organic contaminants removal: Current development, challenges and prospects

TL;DR: In this paper, the authors provide a state-of-the-art review on the development in heterogeneous catalysts including single metal, mixed metal, and nonmetal carbon catalysts for organic contaminants removal, with particular focus on peroxymonosulfate (PMS) activation.
Journal ArticleDOI

Environmental applications of carbon-based nanomaterials.

TL;DR: This review critically assesses the contributions of carbon-based nanomaterials to a broad range of environmental applications: sorbents, high-flux membranes, depth filters, antimicrobial agents, environmental sensors, renewable energy technologies, and pollution prevention strategies.
Journal ArticleDOI

Iron Encapsulated within Pod‐like Carbon Nanotubes for Oxygen Reduction Reaction

TL;DR: Chainmail for catalysts: a catalyst with iron nanoparticles confined inside pea-pod-like carbon nanotubes exhibits a high activity and remarkable stability as a cathode catalyst in polymer electrolyte membrane fuel cells (PEMFC), even in presence of SO(2).
Journal ArticleDOI

Nanocarbons for the Development of Advanced Catalysts

TL;DR: This poster presents a probabilistic procedure to evaluate the response of the H2O/O2 mixture to various pyrolysis conditions and shows promising results in both the horizontal and the vertical domain.
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