title: Highly Ordered Nitrogen-Rich Mesoporous Carbon Nitrides and Their Superior Performance for Sensing and Photocatalytic Hydrogen Generation.
abstract: Mesoporous carbon nitrides (MCN) are fascinating materials with unique semiconducting and basic properties that are useful in many applications including photocatalysis and sensing. Most syntheses of MCN focus on creating theoretically predicted C3N4stoichiometry with a band gap of 2.7 eV using a nano-hard templating approach with triazine-based precursors. However, the performance of the MCN in semiconducting applications is limited to the MCN framework with a small band gap, which would be linked with the addition of more N in the CN framework, but this remains a huge challenge. Here, we report a precursor with high nitrogen content, 3-amino-1,2,4-triazole, that enables the formation of new and well-ordered 3D MCN with C3N5stoichiometry (MCN-8), which has not been predicted so far, and a low-band-gap energy (2.2 eV). This novel class of material without addition of any dopants shows not only a superior photocatalytic water-splitting performance with a total of 801 μmol of H2under visible-light irradiation for 3 h but also excellent sensing properties for toxic acids.
authors.affiliation: Future Industries Institute, Division of Information Technology, Engineering and Environment, Mawson Lakes Campus, University of South Australia, Adelaide, 5095, Australia.|Chemistry Division, Bhabha Atomic Research Centre, Trombay-400085, Mumbai, Maharashtra, India.
authors.forename: Gurudas P
authors.initials: GP
authors.lastname: Mane
authors.affiliation: Future Industries Institute, Division of Information Technology, Engineering and Environment, Mawson Lakes Campus, University of South Australia, Adelaide, 5095, Australia.
authors.forename: Siddulu N
authors.initials: SN
authors.lastname: Talapaneni
authors.affiliation: Future Industries Institute, Division of Information Technology, Engineering and Environment, Mawson Lakes Campus, University of South Australia, Adelaide, 5095, Australia.
authors.forename: Kripal S
authors.initials: KS
authors.lastname: Lakhi
authors.affiliation: Future Industries Institute, Division of Information Technology, Engineering and Environment, Mawson Lakes Campus, University of South Australia, Adelaide, 5095, Australia.
authors.forename: Hamid
authors.initials: H
authors.lastname: Ilbeygi
authors.affiliation: SABIC Corporate Research and Development Center at KAUST, Saudi Basic Industries Corporation, Thuwal, 23955, Saudi Arabia.
authors.forename: Ugo
authors.initials: U
authors.lastname: Ravon
authors.affiliation: SABIC Corporate Research and Development Center at KAUST, Saudi Basic Industries Corporation, Thuwal, 23955, Saudi Arabia.
authors.forename: Khalid
authors.initials: K
authors.lastname: Al-Bahily
authors.affiliation: Center for Green Research on Energy and Environmental Materials National Institute for Materials Science, 1-1, NAMIKI, Tsukuba, Ibaraki, 305 0044, Japan.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Mori
authors.affiliation: Future Industries Institute, Division of Information Technology, Engineering and Environment, Mawson Lakes Campus, University of South Australia, Adelaide, 5095, Australia.
authors.forename: Dae-Hwan
authors.initials: DH
authors.lastname: Park
authors.affiliation: Future Industries Institute, Division of Information Technology, Engineering and Environment, Mawson Lakes Campus, University of South Australia, Adelaide, 5095, Australia.
authors.forename: Ajayan
authors.initials: A
authors.lastname: Vinu
keywords: carbon nitride; mesoporous materials; nanomaterials; photocatalysis; sensing