Mesoporous Metal-Containing Carbon Nitrides for Improved Photocatalytic Activities | Zendy

Jie Luo | Zendy; Zhaojie Cui | Zendy; Guo-Long Zang | Zendy

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Mesoporous Metal-Containing Carbon Nitrides for Improved Photocatalytic Activities

Author(s) -

Jie Luo,

Zhaojie Cui,

Guo-Long Zang

Publication year - 2013

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.436

H-Index - 50

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2013/945348

Subject(s) - chemistry , photocatalysis , mesoporous material , nitride , metal , carbon fibers , carbon nitride , graphitic carbon nitride , nanotechnology , chemical engineering , inorganic chemistry , catalysis , organic chemistry , composite material , composite number , engineering , materials science , layer (electronics)

Graphitic carbon nitrides (g-C3N4) have attracted increasing interest due to their unusual properties and promising applications in water splitting, heterogeneous catalysis, and organic contaminant degradation. In this study, a new method was developed for the synthesis of mesoporous Fe contained g-C3N4 (m-Fe-C3N4) photocatalyst by using SiO2 nanoparticles as hard template and dicyandiamide as precursor. The physicochemical properties of m-Fe-C3N4 were thoroughly investigated. The XRD and XPS results indicated that Fe was strongly coordinated with the g-C3N4 matrix and that the doping and mesoporous structure partially deteriorated its crystalline structure. The UV-visible absorption spectra revealed that m-Fe-C3N4 with a unique electronic structure displays an increased band gap in combination with a slightly reduced absorbance, implying that mesoporous structure modified the electronic properties of g-Fe-C3N4. The photocatalytic activity of m-Fe-C3N4 for photodegradation of Rhodamine B (RhB) was much higher than that of g-Fe-C3N4, clearly demonstrating porous structure positive effect

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