scholarly journals High-Density Ultra-small Clusters and Single-Atom Fe Sites Embedded in Graphitic Carbon Nitride (g-C3N4) for Highly Efficient Catalytic Advanced Oxidation Processes

ACS Nano ◽  
2018 ◽  
Vol 12 (9) ◽  
pp. 9441-9450 ◽  
Author(s):  
Sufeng An ◽  
Guanghui Zhang ◽  
Tingwen Wang ◽  
Wenna Zhang ◽  
Keyan Li ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Carbon Nitride ◽  
Advanced Oxidation ◽  
High Density ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Single Atom ◽  
Oxidation Processes ◽  
Fe Sites ◽  
Small Clusters

scholarly journals Graphitic Carbon Nitride-Based Composite in Advanced Oxidation Processes for Aqueous Organic Pollutants Removal: A Review

Processes ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 66
Author(s):  
Yu Shen ◽  
Antonio J. Dos santos-Garcia ◽  
María José Martín de Vidales
Keyword(s):  
Organic Pollutants ◽  
Advanced Oxidation Processes ◽  
Carbon Nitride ◽  
Electronic Band Structure ◽  
Advanced Oxidation ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Electronic Band ◽  
Oxidation Processes ◽  
Pollutants Removal

In recent decades, a growing number of organic pollutants released have raised worldwide concern. Graphitic carbon nitride (g-C3N4) has drawn increasing attention in environmental pollutants removal thanks to its unique electronic band structure and excellent physicochemical stability. This paper reviews the recent progress of g-C3N4-based composites as catalysts in various advanced oxidation processes (AOPs), including chemical, photochemical, and electrochemical AOPs. Strategies for enhancing catalytic performance such as element-doping, nanostructure design, and heterojunction construction are summarized in detail. The catalytic degradation mechanisms are also discussed briefly.

scholarly journals Investigation of Fe-Doped Graphitic Carbon Nitride-Silver Tungstate as a Ternary Visible Light Active Photocatalyst

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Eid H. Alosaimi ◽  
Nadia Azeem ◽  
Noor Tahir ◽  
Asim Jilani ◽  
Muhammad Zahid ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Visible Light ◽  
Metal Oxides ◽  
Advanced Oxidation Processes ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Oxidation Processes ◽  
Visible Light Active ◽  
Silver Tungstate

The rapid population growth and economic development have largely contributed to environmental pollution. Various advanced oxidation processes have been used as the most viable solution for the reduction of recalcitrant pollutants and wastewater treatment. Heterogeneous photocatalysis is one of the broadly used technologies for wastewater treatment among all advanced oxidation processes. Graphitic carbon nitride alone or in combination with various other semiconductor metal oxide materials acts as a competent visible light active photocatalyst for the removal of recalcitrant organic pollutants from wastewater. Rational designing of an environment-friendly photocatalyst through a facile synthetic approach encounters various challenges in photocatalytic technologies dealing with semiconductor metal oxides. Doping in g-C3N4 and subsequent coupling with metal oxides have shown remarkable enhancement in the photodegradation activity of g-C3N4-based nanocomposites owing to the modulation in g-C3N4 bandgap structuring and surface area. In the current study, a novel ternary Fe-doped g-C3N4/Ag2WO4 visible light active photocatalyst was fabricated through an ultrasonic-assisted facile hydrothermal method. Characterization analysis included SEM analysis, FTIR, XRD, XPS, and UV-Visible techniques to elucidate the morphology and chemical structuring of the as-prepared heterostructure. The bandgap energies were assessed using the Tauc plot. The ternary nanocomposite (Fe-CN-AW) showed increased photodegradation efficiency (97%) within 120 minutes, at optimal conditions of pH = 8, catalyst dose = 50 mg/100 ml, an initial RhB concentration of 10 ppm, and oxidant dose 5 mM under sunlight irradiation. The enhanced photodegradation of rhodamine B dye by ternary Fe-CN-AW was credited to multielectron transfer pathways due to insertion of a Fe dopant in graphitic carbon nitride and subsequent coupling with silver tungstate. The data were statistically assessed by the response surface methodology.

scholarly journals Facile synthesis of an effective g-C3N4-based catalyst for advanced oxidation processes and degradation of organic compounds

2021 ◽  
Author(s):  
Tewodros Asefa ◽  
Zhujian Huang ◽  
Mingxiao Shen ◽  
Junhong Liu ◽  
Jiaer Ye
Keyword(s):  
Organic Compounds ◽  
Organic Pollutants ◽  
Advanced Oxidation Processes ◽  
Carbon Nitride ◽  
Active Catalyst ◽  
Advanced Oxidation ◽  
Graphitic Carbon Nitride ◽  
Facile Synthesis ◽  
Oxidation Processes ◽  
Highly Active

Advanced oxidation processes (AOPs) aided by catalysts can efficiently degrade organic pollutants and decontaminate wastewater. In this work, a highly active catalyst composed of FeMn-functionalized graphitic carbon nitride (FeMn-C3N4) for...

Recent advances in single-atom catalysts for advanced oxidation processes in water purification

2021 ◽  
Vol 412 ◽  
pp. 125253
Author(s):  
Bingkun Huang ◽  
Zelin Wu ◽  
Hongyu Zhou ◽  
Jiayi Li ◽  
Chenying Zhou ◽  
...  
Keyword(s):  
Water Purification ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Single Atom ◽  
Oxidation Processes ◽  
Recent Advances

Single-atom catalysis in advanced oxidation processes for environmental remediation

2021 ◽  
Author(s):  
Yanan Shang ◽  
Xing Xu ◽  
Baoyu Gao ◽  
Shaobin Wang ◽  
Xiaoguang Duan
Keyword(s):  
Environmental Remediation ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Single Atom ◽  
Oxidation Processes ◽  
Recent Advances ◽  
Carbon Based ◽  
Advanced Oxidation Technologies

This review presents the recent advances in synthetic strategies, characterisation, and computations of carbon-based single-atom catalysts, as well as their innovative applications and mechanisms in advanced oxidation technologies.

Graphitic carbon nitride based single-atom photocatalysts

2020 ◽  
Vol 15 (3) ◽  
Author(s):  
Junwei Fu ◽  
Shuandi Wang ◽  
Zihua Wang ◽  
Kang Liu ◽  
Huangjingwei Li ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Single Atom

scholarly journals A Mn-N3 single-atom catalyst embedded in graphitic carbon nitride for efficient CO2 electroreduction

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiaqi Feng ◽  
Hongshuai Gao ◽  
Lirong Zheng ◽  
Zhipeng Chen ◽  
Shaojuan Zeng ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Single Atom ◽  
Co2 Electroreduction
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