Generation of singlet oxygen over CeO₂/K,Na-codoped g-C₃N₄ for tetracycline hydrochloride degradation over a wide pH range

Abstract

Singlet oxygen (1O2) were widely studied for catalytic oxidation and photo dynamic therapy (PDT) and so on due to its unique properties, such as its long lifetime, wide pH tolerance,...

Enhanced Visible-Light H2O2 Production over Pt/g-C3N4 Schottky Junction Photocatalyst

“…The peak at 398.60 eV is for the sp 2 hybridized N in C–NC, and the peaks at 399.34–400.07 eV are for the sp 3 N in N–(C) 3 . The peaks at 401.12–401.18 eV are for N in C–N–H side groups . The peaks at 404.07 and 404.45 eV come from π-electron excitation.…”

“…The peaks at 401.12−401.18 eV are for N in C−N−H side groups. 46 The peaks at 404.07 and 404.45 eV come from π-electron excitation. The intensity of π-electron excitation for Pt0.05/ g-C 3 N 4 is enhanced than that for g-C 3 N 4 , suggesting the improved separation efficiency of photogenerated carriers and the possible enhanced performance for photocatalytic reactions.…”

In situ fabrication of a novel CdS/ZnIn2S4/g-C3N4 ternary heterojunction with enhanced visible-light photocatalytic performance

“…2a ), the peaks centered at 288.1 and 284.8 eV could be ascribed to graphitic carbon (C C) and sp 2 -hybridized carbon (N–C N), respectively. 41 For N 1s ( Fig. 2b ), the binding energies of peaks at 398.4, 399.5, and 400.7 eV are derived from sp 2 -hybridized nitrogen (C–N C), tertiary nitrogen N–(C) 3 groups and amino functions carrying hydrogen (C–N–H), separately.…”

Reactive species specific RhB assisted collective photocatalytic degradation of tetracycline antibiotics with triple-layer Aurivillius perovskites

“…S16, ESI †) observed at g = 2.0023 is attributed to bridging oxygen vacancies (Ti 4+ -O-O˙) on the surface. 74,75 The sample (catalyst dispersed in distilled water) after irradiation with light did not show any additional EPR signal. However, the intensity of the above signal decreased drastically when the sample was dispersed in RhB solution.…”