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
Preparation, modification and environmental application of biochar: A review
Jianlong Wang,Shizong Wang +1 more
TL;DR: In this paper, a review of the preparation, characterization, modification, and especially environmental application of biochar, based on more than 200 papers published in recent 10 year, to provide an overview of Biochar with a particular on its environmental application.
Journal ArticleDOI
Catalytic removal of aqueous contaminants on N-doped graphitic biochars: inherent roles of adsorption and nonradical mechanisms.
TL;DR: This study not only provides robust and cheap carbonaceous materials for environmental remediation but also enables the first insight into the graphitic biochar-based nonradical catalysis.
Journal ArticleDOI
Iron-mediated activation of persulfate and peroxymonosulfate in both homogeneous and heterogeneous ways: A review
TL;DR: In this article, the up-to-date research progresses of iron-mediated activation of persulfate and peroxymonosulfate mediated by these iron-based species in both homogeneous and heterogeneous ways are summarized and discussed.
Journal ArticleDOI
New Strategies for Novel MOF-Derived Carbon Materials Based on Nanoarchitectures
Chaohai Wang,Chaohai Wang,Jeonghun Kim,Jeonghun Kim,Jing Tang,Minjun Kim,Hyunsoo Lim,Victor Malgras,Jungmok You,Qiang Xu,Jiansheng Li,Yusuke Yamauchi,Yusuke Yamauchi +12 more
TL;DR: In this article, metal-organic framework (MOF)-derived carbon materials (CMs) have drawn great interest in many fields of application, such as energy storage and conversion, environmental remediation, and catalysis.
Journal ArticleDOI
The Intrinsic Nature of Persulfate Activation and N-Doping in Carbocatalysis.
TL;DR: It is illustrated that the roles of nitrogen species in CNT-based persulfate systems are intrinsically different, which provides new insights into the intrinsic roles of heteroatom doping in nanocarbons for persulfates activation and unveils the principles for rational design of reaction-oriented carbocatalysts for pers fulfilment in advanced oxidation processes.
References
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Journal ArticleDOI
Reduced graphene oxide for catalytic oxidation of aqueous organic pollutants.
TL;DR: It was shown that graphene catalysis is superior to that on transition metal oxide (Co(3)O(4)) in degradation of phenol, 2,4-dichlorophenol (DCP) and a dye in water, therefore providing a novel strategy for environmental remediation.
Journal ArticleDOI
Insights into Heterogeneous Catalysis of Persulfate Activation on Dimensional-Structured Nanocarbons
TL;DR: In this article, a variety of dimensional-structured nanocarbons were applied for the first time as metal-free catalysts to activate persulfate (PS) for catalytic oxidation of phenolics and dyes as well as their degradation intermediates.
Journal ArticleDOI
Efficient peroxydisulfate activation process not relying on sulfate radical generation for water pollutant degradation.
TL;DR: It is reported that copper oxide (CuO) can efficiently activate PDS under mild conditions without producing sulfate radicals and shows significant advantages over sulfate radical oxidation by achieving much higher 2,4-DCP degradation capacity and avoiding the formation of highly chlorinated degradation products.
Journal ArticleDOI
Sulfur and nitrogen co-doped graphene for metal-free catalytic oxidation reactions
TL;DR: This study presents a novel metal-free catalyst for green remediation of organic pollutants in water that can effectively break the inertness of carbon systems, activate the sp(2) -hybridized carbon lattice and facilitate the electron transfer from covalent graphene sheets for PMS activation.
Journal ArticleDOI
Occurrence of radical and nonradical pathways from carbocatalysts for aqueous and nonaqueous catalytic oxidation
TL;DR: In this article, the peroxymonosulfate (PMS) activation was investigated on different carbocatalysts with varying carbon-conjugation structures and functional groups, and density functional theory (DFT) calculations were employed to explore the adsorption and O O O bond activation on the different carbon configurations.
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