Details

Autor(en) / Beteiligte

• Fei, Heng
• Shao, Junxia
• Li, Hua
• Li, Najun
• Chen, Dongyun
• Xu, Qingfeng
• He, Jinghui
• Lu, Jianmei

Titel

Construction of ultra-thin 2D CN-Br0.12/2%RhOx photo-catalyst with rapid electron and hole separation for efficient bisphenol A degradation

Ist Teil von

• Applied catalysis. B, Environmental, 2021-12, Vol.299, p.120623, Article 120623

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2021

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• Br and ultra-fine dispersed RhOx nanoparticles were decorated on the ultrathin 2D g-C3N4 to induce high separation efficiency of photo-induced electrons and holes, resulting in high performance of degradation 10 ppm BPA within 9 min under visible light condition. [Display omitted] •Ultrafine RhOx nanoparticles (∼2 nm) were prepared on g-C3N4.•The ultrathin g-C3N4 largely shorten the migration distance of h+–e– pair.•Dual cocatalysts Br and RhOx can respectively promote the transfer of electrons and holes.•CN-Br0.12/2%RhOx exhibits the fastest degradation rate among CN-based photocatalysts. g-C3N4 (CN), which shows enormous potential for photocatalysis, has long been studied, but still exhibits an unsatisfactory degradation rate. Herein, dual cocatalysts, Br and ultrafine RhOx nanoparticles, were constructed on ultrathin CN for synergetic photocatalysis. Ultrathin CN increased the exciton separation efficiency, while cocatalysts Br and RhOx can accelerated electron and hole transfer simultaneously, maximizing the photocatalytic degradation performance of CN. This CN-Br0.12/2%RhOx degraded 10 ppm bisphenol A (BPA) in 9 min, which represents the fastest degradation rate reported to date. This excellent performance was also demonstrated by a larger photocurrent response, higher separation efficiency, and faster transfer rate for electron–hole pairs than CN. This work obtained an enhanced electron–hole separation efficiency and migration rate by combing ultrathin CN with dual-channel cocatalysts, leading to the best photocatalytic degradation performance reported for CN.