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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Insight into the degradation of tetracycline hydrochloride by non-radical-dominated peroxymonosulfate activation with hollow shell-core Co@NC: Role of cobalt species
Yawen Chen,Kangping Cui,Minshu Cui,Tong Liu,Xing Chen,Yihan Chen,Xianbao Nie,Zhengjian Xu,Chenxuan Li +8 more
TL;DR: In this paper , a shell-core hollow Co@NC with exposed two different cobalt species (i.e., Co nanoparticles and Co-N x site) was prepared and used to activate PMS for tetracycline hydrochloride (TCH) degradation.
Journal ArticleDOI
PMS activation by magnetic cobalt-N-doped carbon composite for ultra-efficient degradation of refractory organic pollutant: Mechanisms and identification of intermediates
TL;DR: In this article , magnetic Co-N-doped carbon hybrid catalysts (CoNC-x) were fabricated using a facile cation exchange combined pyrolysis and self-reduction technique to activate peroxymonosulfate (PMS) for rehabilitation of the water environment.
Journal ArticleDOI
Mechanistic insights of removing pollutant in adsorption and advanced oxidation processes by sludge biochar.
TL;DR: In this paper , the authors discuss the synthesis techniques that affect the structural, chemical, and catalytic properties of pristine sludge biochar, including gasification, pyrolysis, and hydrothermal carbonation (HTC).
Journal ArticleDOI
NH2-MCM-41 supported on nitrogen-doped graphene as bifunctional composites for removing phenol compounds: Synergistic effect between catalytic degradation and adsorption
TL;DR: In this paper, amino-functionalized mesoporous silica (NH2-MCM-41) was anchored onto NG surface and stacked NG sheets were unfolded with porous channels, thereby constructing unique catalytic and adsorption cells for removing p-cresol (p-CR) and bisphenol A (BPA).
Journal ArticleDOI
Electrochemical-driven carbocatalysis as highly efficient advanced oxidation processes for simultaneous removal of humic acid and Cr(VI)
TL;DR: In this article, the authors combined the advantages of these two methods and for the first time proposed a conceptual new, novel and promising approach of electrochemical-driven carbocatalysis as highly efficient AOPs for water remediation, which was simply performed by adding carbon-based particles into the electrochemical system.
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.
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