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
More filters
Journal ArticleDOI
Activation of persulfate by graphene/biochar composites for phenol degradation: Performance and nonradical dominated reaction mechanism
TL;DR: In this article , a metal-free carbon catalysts have attracted extensive attention in sulfate radical (SO4•−)-based advanced oxidation processes (SR-AOPs), and the effects of different factors (e.g., graphene/biomass mass ratio, GBC dosing, phenol concentration, pH values, reaction temperature and background substrates in water) on the removal of phenol and the mechanism in the GBC/PS system were investigated.
Journal ArticleDOI
Synthesis of Micromesoporous Zeolite-Alumina Catalysts for Olefin Production from Heavy Crude Oil
TL;DR: In this article , the authors developed extrudate zeolite catalysts posing adequate micromesoporous pore network and moderate acidity by combining microporous zeolites with the boehmite phase of alumina.
Journal ArticleDOI
MOFs-derived CuO-Fe3O4@C with abundant oxygen vacancies and strong Cu-Fe interaction for deep mineralization of bisphenol A.
Wenjun Zhu,Xi Zuo,Xiaofei Zhang,Xiangyi Deng,Deng Ding,Chunlei Wang,Juntao Yan,Xiaobo Wang,Guanghui Wang +8 more
TL;DR: In this paper , a novel CuO-Fe3O4 encapsulated in the carbon framework with abundant oxygen vacancies was successfully prepared by thermal conversion of Cu(OAc)2/Fe-metal organic framework.
Journal ArticleDOI
Superior degradation of phenolic contaminants in different water matrices via non-radical Fenton-like mechanism mediated by surface-disordered WO3
TL;DR: In this article, the surface-disordered WO3 (D-WO3) functional engineered by the unique crystalline-amorphous core-shell structure is proven to be a superior solid catalyst of heterogeneous Fenton-like catalysis for peroxymonosulfate (PMS) activation and pollutant degradation in various water matrices.
Journal ArticleDOI
Nanocarbon shells with self-inherent N, P derived from chlorella pyrenoidosa for aqueous catalytic ozonation: nonradical-dominated mechanisms
Olaf Riese,Stéphane Cordeau +1 more
TL;DR: In this article , a one-step pyrolysis method was used to remove ibuprofen (IBU) for catalytic ozonation and the results indicated that graphitic N, pyridinic N and C3PO functional groups were the major active sites based on the correlation between material structure and catalytic performance.
References
More filters
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