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Journal of Materials Science

Erschienen in:

16.08.2019 | Polymers & biopolymers

Effects of heat treatment on the structure and photocatalytic activity of polymer carbon nitride

verfasst von: Qingbo Yu, Qixiang Xu, Huiqin Li, Kuan Yang, Xianhua Li

Erschienen in: Journal of Materials Science | Ausgabe 23/2019

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Abstract

Heat treatment technology is usually used for the processing of metal materials. In this paper, polymer carbon nitride (g-C₃N₄) is secondarily calcined at 590 °C. A series of nitrogen-doped g-C₃N₄ are obtained by adjusting the holding time. The doping of nitrogen atoms changes the electronic structure of the catalyst and narrows the band gap. In addition, the escape of ammonia during the secondary calcinations leads to the increase in the specific surface area of the catalyst, which is helpful to enhance the photosensitization effect. Among them, the sample obtained by holding time at 2 h has the highest photogenerated carrier separation efficiency, the largest specific surface area and the best photocatalytic degradation of methylene blue.

Vorheriger Artikel Influence of mechanically activated annealing on phase evolution in Al0.3CoCrFeNi high-entropy alloy

Nächster Artikel Investigation of electrohydrodynamic atomization (electrospraying) parameters’ effect on formation of poly(lactic acid) nanoparticles

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Titel: Effects of heat treatment on the structure and photocatalytic activity of polymer carbon nitride
verfasst von: Qingbo Yu
Qixiang Xu
Huiqin Li
Kuan Yang
Xianhua Li
Publikationsdatum: 16.08.2019
Verlag: Springer US
Erschienen in: Journal of Materials Science / Ausgabe 23/2019
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-019-03895-w

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