Energy-resolved distribution of electron traps for O/S-doped carbon nitrides by reversed double-beam photoacoustic spectroscopy and the photocatalytic reduction of Cr(vi)†
Chitiphon
Chuaicham, 
a
Sekar
Karthikeyan,
a
Radheshyam R.
Pawar,
a
Yoonyoung
Kim,
de
Tatsumi
Ishihara
de
and
Keiko
Sasaki
*ac
a
Sekar
Karthikeyan,
a
Radheshyam R.
Pawar,
a
Yoonyoung
Kim,
de
Tatsumi
Ishihara
de
and
Keiko
Sasaki
*ac
Abstract
We report for the first time to our knowledge the identification of heteroatom-doped and undoped C3N4 with the energy-resolved distribution of electron traps (ERDT) near the conduction band bottom position (CBB) using reversed double-beam photoacoustic spectroscopy. The ERDT/CBB pattern is used to classify the type of elemental doping in C3N4, related to photocatalytic efficiency.
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