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Updated: Sep 25, 2025

The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance
Published on: July 4, 2017
Construction of Z-scheme NiO/NiC/g-C3N4 composites using NiC as novel cocatalysts for the efficient photocatalytic
Xiaojie Song1, Sisi Ye1, Xin Zhou1
1Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences Wuhan 430074 China yzhh05@126.com +86-27-67884814.
Abstract:
A novel composite consisting of NiO/NiC/g-C3N4 with excellent photocatalytic properties was successfully synthesized by the simple calcination of layered double metal hydroxide (LDH) and melamine. The color and chemical composition of the as-prepared composites could be tailored by changing the mass ratio of NiAl-LDH and g-C3N4. For the L4C composite at the ratio of 1 : 1, it showed the desired dark color due to the generated NiC. It also showed high photodegradation efficiency under visible light irradiation, reaching 97.5% toward Rhodamine B and 92.6% toward tetracycline. The high photodegradation efficiency could be mainly attributed to the unique formation of NiC cocatalysts coupled with g-C3N4 and NiO semiconductors, which constructed a Z-scheme system and facilitated the efficient separation of the photogenerated electron-hole pairs. The present findings provide a promising approach for fabricating the new types of composite photocatalysts for pollutant degradation.
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