Details

Autor(en) / Beteiligte

• Huang, Zhaohui
• Chen, Hui
• Zhao, Lei
• Fang, Wei
• He, Xuan
• Li, Weixin
• Tian, Pan

Titel

In suit inducing electron-donating and electron-withdrawing groups in carbon nitride by one-step NH4Cl-assisted route: A strategy for high solar hydrogen production efficiency

Ist Teil von

• Environment international, 2019-05, Vol.126, p.289-297

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2019

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• Owing to insufficient active sites, strongly bound excitons and insufficient optical absorption, polymer semiconductors have only shown mild activity as potential candidates for photocatalysis. A g-C3N4 with improved optical absorption capacity, charge transfer performance and porosity was successfully prepared by a one-step NH4Cl-assisted route. Interaction of melamine with NH4Cl preparation of Porous g-C3N4(CN-xy) with active functional groups modified pore wall shown to result in highly crystalline species with a maximum π-π layer stacking distance of heptazine units of 0.321 nm, decreases the optical band gap from 2.80 to 2.13 eV and maximum surface area reached 56.485 m2 g−1. The balanced improvement of the multiple defects of g-C3N4 makes the photocatalytic degradation of RhB and the photocatalytic hydrogen production efficiency 4 and 5 times higher than the pristine g-C3N4, respectively. [Display omitted] •One-step in suit inducing.•Amino and cyano modified porous g-C3N4.•Trade-off in all aspects.•Forming an electronic transmission path for D-π-A.