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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Journal ArticleDOI
Effect of inorganic anions on the performance of advanced oxidation processes for degradation of organic contaminants
Jianlong Wang,Shizong Wang +1 more
TL;DR: In this article, the effect of inorganic anions on the performance of advanced oxidation processes, including the transformation of reactive species, stability of oxidants, catalytic activity of catalysts and degradation products, was systematically summarized and reviewed.
Journal ArticleDOI
Insights into the Electron-Transfer Regime of Peroxydisulfate Activation on Carbon Nanotubes: The Role of Oxygen Functional Groups
TL;DR: The quantitative structure-activity relationships (QSARs) were established and correlated to the Tafel equation, suggesting that the nonradical oxidation by the CNT-PDS* undergoes a mechanism analogous to anodic oxidation.
Journal ArticleDOI
A review of the innovations in metal- and carbon-based catalysts explored for heterogeneous peroxymonosulfate (PMS) activation, with focus on radical vs. non-radical degradation pathways of organic contaminants
TL;DR: In this paper, the authors summarize the rapid development of various heterogeneous catalysts developed for peroxymonosulfate (PMS) activation, destined for the degradation of organic contaminants.
Journal ArticleDOI
Magnetic nitrogen-doped sludge-derived biochar catalysts for persulfate activation: Internal electron transfer mechanism
Jiangfang Yu,Lin Tang,Ya Pang,Guangming Zeng,Jiajia Wang,Yaocheng Deng,Yani Liu,Haopeng Feng,Song Chen,Xiaoya Ren +9 more
TL;DR: In this paper, a one-pot synthetic method for magnetic nitrogen-doped sludge biochar (MS-biochar) was presented, which exhibited better catalytic property with PDS for tetracycline degradation than typical graphitic carbon (graphite powder, graphene oxide and multiwalled carbon nanotubes) and two other types biochars.
Journal ArticleDOI
Highly efficient activation of peroxymonosulfate by natural negatively-charged kaolinite with abundant hydroxyl groups for the degradation of atrazine
Chunquan Li,Chunquan Li,Ying Huang,Xiongbo Dong,Zhiming Sun,Xiaodi Duan,Bangxing Ren,Shuilin Zheng,Dionysios D. Dionysiou +8 more
TL;DR: In this paper, the performance of natural kaolinite was evaluated for the performance to activate peroxymonosulfate (PMS) by the degradation of atrazine, which was attributed to the abundant surface-bonded and structural hydroxyl groups.
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