New functionalization approach synthesis of Sulfur doped, Nitrogen doped and Co-doped porous carbon: Superior metal-free Carbocatalyst for the catalytic oxidation of aqueous organics pollutants

Anfar, Zakaria; Fakir, Abdellah Ait El; Zbair, Mohamed; Hafidi, Zakaria; Amedlous, Abdallah; Majdoub, Mohammed; Farsad, Salaheddine; Amjlef, Asma; Jada, Amane; Alem, Noureddine El

doi:10.1016/j.cej.2020.126660

Cited by 62 publications

(7 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a kind of transition metal, Co has a strong Co 2+ /Co 3+ redox cycle which can also promote electron transfer and thus improve catalytic oxidation efficiency [21]. Lv et al reported that Co doping on Fe 3 O 4 increased the catalytic activity and stability of Fe 3 O 4 [22].…”

Section: Introductionmentioning

confidence: 99%

Phenol Removal Performance and Mechanism Using Catalytic Ozonation with the Catalyst of Cobalt-doped α-MnO2

Zhang

Dong

Han

et al. 2022

Environmental Engineering Research

View full text Add to dashboard Cite

In this paper, Cobalt-doped α-MnO2 (i.e., Co-α-MnO2) were synthesized through hydrothermal method. Phenol was employed as targeted pollutants to investigate the catalytic ozonation performance of Co-α-MnO2. Results showed that Co-α-MnO2 significantly improved the phenol removal increased to 97.47 % after 40 min, which was 16.46 %, 38.92 % higher than that of α-MnO2 catalytic ozonation and single ozonation without catalyst. Additionally, the physicochemical properties of α-MnO2 and Co-α-MnO2 were analyzed using technologies such as XRD, TEM, BET and XPS. Compared to α-MnO2, Co-α-MnO2 has larger specific surface area (79.496 m 2 /g) and pore volume (0.0396 cm 3 /g), higher Mn 3+ relative content (41.16 %) and adsorbed oxygen content (18.99 %). Also, the oxygen vacancy content, lattice defect content and surface hydroxyl content of Co-α-MnO2 are higher than that of α-MnO2, which could result in higher catalytic oxidation performance of Co-α-MnO2. The influence of masking agent showed that surface hydroxyl group, •OH and •O 2were involved in the catalytic ozonation of phenol. This study could help recognize the role of surface hydroxyl groups and active free radicals and demonstrate the contribution of reactive oxygen species on phenol removal in Co-α-MnO2 systems.

show abstract

Section: Introductionmentioning

confidence: 99%

Phenol Removal Performance and Mechanism Using Catalytic Ozonation with the Catalyst of Cobalt-doped α-MnO2

Zhang

Dong

Han

et al. 2022

Environmental Engineering Research

View full text Add to dashboard Cite

show abstract

“…The glucose was directly carbonized into large bulky and thick sheets with several microns size. When melamine was added as the nitrogen source, the obtained GNC still shows the sheet structure but with some micropores, as shown in Figure 1(c 2 ), indicating that melamine favors the formation of micropores [12] . After introduction of NaH 2 PO 2 , the obtained P ‐doped carbon (GPC) shows lamellar structure with some fragmentized thin carbon sheets, Figure 1(d 1 ).…”

Section: Resultsmentioning

confidence: 98%

“…When melamine was added as the nitrogen source, the obtained GNC still shows the sheet structure but with some micropores, as shown in Figure 1(c 2 ), indicating that melamine favors the formation of micropores. [12] After introduction of NaH 2 PO 2 , the obtained P-doped carbon (GPC) shows lamellar structure with some fragmentized thin carbon sheets, Figure 1(d 1 ). The presence of mesopores in GPC suggests the activation capability of the PH 3 gas, which was obtained by decomposition of NaH 2 PO 2 during the thermal process at 300 °C.…”

Section: Resultsmentioning

confidence: 99%

N,P‐co‐doped 2D Carbon Nanosheets for High Energy Density Zinc‐Ion Capacitors

Gao

Holze

et al. 2023

Batteries & Supercaps

View full text Add to dashboard Cite

Zinc‐ion capacitors (ZICs) are regarded as highly promising candidates for electrical energy storage systems (EESs). However, some challenges must be met to achieve high energy density and long cycling life in practical applications. Herein, we report on design and preparation of 2D nanosheets of N,P‐co‐doped hierarchical porous carbon (GNPCs) by a one‐step process. Benefitting from the mesopores supporting rapid diffusive ion transport, sufficient micropores for charge storage, and high electrical conductivity enabled by N,P‐doping, the resulting GNPC cathodes for ZICs achieved a high capacity of 401 F g−1. In a complete device a high energy density of 180 Wh kg−1 was obtained at a power density of 85 W kg−1 at 0.1 A g−1. More importantly, the ZICs exhibit a good cycling stability with a capacity retention of 95 % after 10 000 cycles at a current density of 5 A g−1. Our work presents a good strategy for developing high‐performance carbon‐based cathodes for ZICs.

show abstract

“…The 2D band was a two-phonon Raman resonance peak, which emerged at around 2700 cm −1 , and also had a more intuitive response to the number of graphene layers. 28 With the decrease of graphene layers, the 2D band shifted to the left, and its half-width also decreased. As a result, G1000 could be tailored with more decays and fewer layers due to thermal expansion (Fig.…”

Section: Papermentioning

confidence: 97%

Mechanistic inference on the roles of oxygenic functional groups that activate peroxymonosulfates in graphene for advanced oxidation

et al. 2022

View full text Add to dashboard Cite

show abstract

New functionalization approach synthesis of Sulfur doped, Nitrogen doped and Co-doped porous carbon: Superior metal-free Carbocatalyst for the catalytic oxidation of aqueous organics pollutants

Cited by 62 publications

References 80 publications

Phenol Removal Performance and Mechanism Using Catalytic Ozonation with the Catalyst of Cobalt-doped α-MnO2

Phenol Removal Performance and Mechanism Using Catalytic Ozonation with the Catalyst of Cobalt-doped α-MnO2

N,P‐co‐doped 2D Carbon Nanosheets for High Energy Density Zinc‐Ion Capacitors

Mechanistic inference on the roles of oxygenic functional groups that activate peroxymonosulfates in graphene for advanced oxidation

Contact Info

Product

Resources

About