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...read more
Citations
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Nitrogen-doped metal-free carbon catalysts for (electro)chemical CO2 conversion and valorisation
TL;DR: An overview of the progresses made in nitrogen-doped metal-free carbon catalysts for CO2 electrochemical conversion and CO2 conversion into cyclic carbonates into useful fuels and chemicals is provided with a focus on the results underlying their mechanistic behavior, advantages and/or limitations.
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Catalytically active nitrogen-doped porous carbon derived from biowastes for organics removal via peroxymonosulfate activation
TL;DR: In this paper, N-doped porous carbons were prepared from various biowastes by thermal annealing method under inert atmosphere and compared to those prepared from spent coffee ground (PC-SC) and saw dust, with higher at.% graphitic N (44-46 at.%) and specific surface area (>400m2 g−1), performed significantly better (apparent rate constant, kapp = 0.072-0.087
Journal ArticleDOI
Heterogeneous activation of persulfate by metal and non-metal catalyst for the degradation of sulfamethoxazole: A review
TL;DR: In this paper , the authors summarized the development of several heterogeneous metals and non-metal catalysts used for persulfate activation for SMX degradation, and the toxicity of the degradation products was considered.
Journal ArticleDOI
Microplastic degradation methods and corresponding degradation mechanism: Research status and future perspectives.
TL;DR: In this paper, a review of MP degradation methods including direct photodegradation, photocatalytic oxidation, and electrochemical oxidation is presented, and the characteristics and limitations of each technique are discussed in detail.
Journal ArticleDOI
Non-covalent doping of carbon nitride with biochar: Boosted peroxymonosulfate activation performance and unexpected singlet oxygen evolution mechanism
TL;DR: A noncovalent functionalization approach was implemented using graphitic biochar (BC) as dopant to manipulate electronic properties of polymeric carbon nitride (PCN) while preserving its robust geometric skeleton as mentioned in this paper.
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
Dehui Deng,Liang Yu,Xiaoqi Chen,Guoxiong Wang,Li Jin,Xiulian Pan,Jiao Deng,Gongquan Sun,Xinhe Bao +8 more
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.
Related Papers (5)
Generation of sulfate radical through heterogeneous catalysis for organic contaminants removal: Current development, challenges and prospects
Activation of persulfate (PS) and peroxymonosulfate (PMS) and application for the degradation of emerging contaminants
Jianlong Wang,Shizong Wang +1 more