Porous and low-defected graphitic carbon nitride nanotubes for efficient hydrogen evolution under visible light irradiation. Issue 124 (30th November 2015)

• Record Type: Journal Article
• Authors: Huang, Zhijun; Li, Fengbo; Chen, Bingfeng; Yuan, Guoqing
• Is Part Of: RSC advances. Volume 5:Issue 124(2015)
• Page Start: 102700
• Page End: 102706
• Publication Date: 2015-11-30
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra23419k
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Porous and low-defected g-C3 N4 nanotubes with high S BET and optimized optical and electronic properties exhibit enhanced photocatalytic activity. Abstract : Porous and low-defect graphitic carbon nitride (g-C3 N4 ) nanotubes were fabricated through heating precursors synthesized by recrystallization from H2 SO4 /methanol. The textural and chemical structures of the as-prepared samples were well studied. Recrystallization and subsequent heating result in g-C3 N4 nanotubes with developed porosity and high specific surface area. Unexpectedly, the nanotubes exhibit much ordered tri- s -triazine conjugated network and fewer defects. Compared to bulk g-C3 N4 prepared by direct heating melamine, the nanotubes demonstrate enhanced photocatalytic activity for hydrogen evolution under visible light irradiation. Besides the improved textural and chemical structures, the optimized optical and electronic properties are contributed to the enhanced photocatalytic performance.