Facile fabrication of hollow carbon nitride microspheres with mesoporous structures: When ethanol meets cyanamide--颗粒学报PARTICUOLOGY

Li, J., Han, L., Ye, X., Zhang, M., Hu, Y., & Jiang, T. (2020). Facile fabrication of hollow carbon nitride microspheres with mesoporous structures: When ethanol meets cyanamide. Particuology, 53, 186-191. https://doi.org/10.1016/j.partic.2020.02.007

Facile fabrication of hollow carbon nitride microspheres with mesoporous structures: When ethanol meets cyanamide

Jian Li ^1 *, Lin Han ¹, Xinxin Ye, Min Zhang, Yueyue Hu, Tao Jiang ^*

Received 26 November 2019, Revised 23 February 2020, Accepted 28 February 2020, Available online 23 May 2020, Version of Record 16 December 2020.

10.1016/j.partic.2020.02.007

Volume 53, December 2020, Pages 186-191

Received 26 November 2019, Revised 23 February 2020, Accepted 28 February 2020, Available online 23 May 2020, Version of Record 16 December 2020.

E-mail: lijian@tust.edu.cn; lijian@tust.edu.cn

Highlights

• Hollow mesoporous carbon nitride microspheres (HMCNMs) were prepared.

• HMCNM synthesis used an EtOH/melting cyanamide precursor solution.

• The HMCNMs have a higher surface area than graphitic carbon nitride (g-C₃N₄).

• The surface area is easily controlled by varying the EtOH content of the precursor.

• The HMCNMs have much higher visible light photocatalytic activity than bulk g-C₃N₄.

Abstract

A facile method for preparing hollow mesoporous carbon nitride microspheres (HMCNMs) has been developed. A cyanamide/ethanol solution was used as a precursor, with ethanol acting as both a solvent and a porogen, to prepare HMCNMs with a high surface area of 112 m²/g. It was demonstrated that the HMCNM microstructure and surface morphology can be controlled by adjusting the proportion of ethanol in the precursor solution. The resulting HMCNMs exhibited much higher visible light photocatalytic degradative activity toward methylene blue than bulk graphitic carbon nitride.

Graphical abstract

Keywords

Hollow microspheres; Carbon nitride; Mesoporous; Template

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