Degradation Mechanism of Methylene Blue by H2O2 and Synthesized Carbon Nanodots/Graphitic Carbon Nitride/Fe(II) Composite

2019 ◽  
Vol 123 (44) ◽  
pp. 26921-26931 ◽  
Author(s):  
Lijuan Fang ◽  
Zhongda Liu ◽  
Chunsun Zhou ◽  
Yulian Guo ◽  
Yanpeng Feng ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Carbon Nitride ◽  
Degradation Mechanism ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Carbon Nanodots

Visible-light enhancement of methylene blue photodegradation by graphitic carbon nitride-titania composites

2014 ◽  
Vol 27 ◽  
pp. 966-974 ◽  
Author(s):  
Dongying Fu ◽  
Gaoyi Han ◽  
Feifei Liu ◽  
Yaoming Xiao ◽  
Hongfei Wang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Light Enhancement

Isotype heterostructure of bulk and nanosheets of graphitic carbon nitride for efficient visible light photodegradation of methylene blue

RSC Advances ◽  
2016 ◽  
Vol 6 (30) ◽  
pp. 24976-24984 ◽  
Author(s):  
Biswajit Choudhury ◽  
P. K. Giri
Keyword(s):  
Methylene Blue ◽  
Charge Carrier ◽  
Visible Light ◽  
Band Gap ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Visible Light Photocatalysis ◽  
Mean Lifetime

Isotype heterostructure of bulk and nanosheets of graphitic carbon nitride with effective band gap of 2.62 eV and charge carrier mean lifetime of 21 ns exhibits an efficient visible light photocatalysis.

Photodegradation Activity of Nitrogen‐rich Graphitic Carbon Nitride Intercalated ZnO\Mg‐Al Layered Double Hydroxide Ternary Nanocomposites on Methylene Blue Dye

2019 ◽  
Vol 4 (11) ◽  
pp. 2982-2990 ◽  
Author(s):  
Kandasamy Bhuvaneswari ◽  
Govindasamy Palanisamy ◽  
Thangavelu Pazhanivel ◽  
Thandavarayan Maiyalagan ◽  
Ganapathi Bharathi
Keyword(s):  
Methylene Blue ◽  
Layered Double Hydroxide ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Double Hydroxide

scholarly journals Graphitic carbon nitride photocatalysis: the hydroperoxyl radical role revealed by kinetic modelling

2021 ◽  
Author(s):  
Inmaculada Velo-Gala ◽  
André Torre Torres Pinto ◽  
Cláudia Gomes Silva ◽  
Bunsho Ohtani ◽  
Adrián M.T. Silva ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Kinetic Modelling ◽  
Degradation Mechanism ◽  
Pollutant Removal ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Hydroperoxyl Radical ◽  
Metal Free ◽  
Photocatalytic Degradation Mechanism

Metal-free graphitic carbon nitride (GCN) is an optical semiconductor with the advantage of in situ H2O2 generation parallel to pollutant removal. The photocatalytic degradation mechanism using GCN is attributed to...

Preparation and Photocatalytic Behavior of Carbon-Nanodots/Graphitic Carbon Nitride Composite Photocatalyst

2017 ◽  
Vol 164 (4) ◽  
pp. H211-H214 ◽  
Author(s):  
Tian Qin ◽  
Zengyu You ◽  
Hui Wang ◽  
Qianhong Shen ◽  
Fang Zhang ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Carbon Nanodots ◽  
Composite Photocatalyst

scholarly journals Hematite/Graphitic Carbon Nitride Nanofilm for Fenton and Photocatalytic Oxidation of Methylene Blue

2020 ◽  
Vol 12 (7) ◽  
pp. 2866
Author(s):  
Sangbin Lee ◽  
Jae-Woo Park
Keyword(s):  
Methylene Blue ◽  
Fenton Reaction ◽  
Photocatalytic Oxidation ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Oxide Glass ◽  
Composite Catalyst ◽  
Methylene Blue Degradation ◽  
X Ray

Hematite (α-Fe2O3)/graphitic carbon nitride (g-C3N4) nanofilm catalysts were synthesized on fluorine-doped tin oxide glass by hydrothermal and chemical vapor deposition. Scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy analyses of the synthesized catalyst showed that the nanoparticles of g-C3N4 were successfully deposited on α-Fe2O3 nanofilm. The methylene blue degradation efficiency of the α-Fe2O3/g-C3N4 composite catalyst was 2.6 times greater than that of the α-Fe2O3 single catalyst under ultraviolet (UV) irradiation. The methylene blue degradation rate by the α-Fe2O3/g-C3N4 catalyst increased by 6.5 times after 1 mM of hydrogen peroxide (H2O2) was added. The photo-Fenton reaction of the catalyst, UV, and H2O2 greatly increased the methylene blue degradation. The results from the scavenger experiment indicated that the main reactants in the methylene blue decomposition reaction are superoxide radicals photocatalytically generated by g-C3N4 and hydroxyl radicals generated by the photo-Fenton reaction. The α-Fe2O3/g-C3N4 nanofilm showed excellent reaction rate constants at pH 3 (Ka = 6.13 × 10−2 min−1), and still better efficiency at pH 7 (Ka = 3.67 × 10−2 min−1), compared to other methylene blue degradation catalysts. As an immobilized photo-Fenton catalyst without iron sludge formation, nanostructured α-Fe2O3/g-C3N4 are advantageous for process design compared to particle-type catalysts.

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