Facile synthesis of PbBiO 2 X/Ti 3 C 2 MXene composites with efficient visible photocatalytic activity

• Published in: New journal of chemistry Vol. 47; no. 39; pp. 18315 - 18324
• Main Authors: Yu, Yanlong, Zhang, Jun, Shi, Zhaojun, Li, Ziying, Yan, Sai
• Format: Journal Article
• Language: English
• Published: 09.10.2023
• ISSN: 1144-0546; 1369-9261
• DOI: 10.1039/D3NJ03421F

The exploration of visible photocatalysts for the degradation of organic pollutants is still important for human beings. Herein, three series of novel PbBiO 2 X/Ti 3 C 2 (X = Cl, Br and I) composited photocatalysts were synthesized for the first time. These PbBiO 2 X-based photocatalysts were prepared by changing the weight amount of Ti 3 C 2 MXene. PbBiO 2 X nanoplates were distributed on the surface of an organ-like Ti 3 C 2 MXene. The optimized PbBiO 2 Cl composited with a 10% weight ratio of Ti 3 C 2 MXene, PbBiO 2 Br and PbBiO 2 I composited with a 5% weight ratio of Ti 3 C 2 MXene achieved visible activity in the photo-degradation of 4-CP (4-chlorophenol) and MO (methyl orange). The strong interaction at the interface between PbBiO 2 X and the Ti 3 C 2 Mxene plays a crucial role in enhancing the catalytic performance. The composition of the Ti 3 C 2 Mxene extended the visible absorption and promoted the separation of photo-induced carriers. The photocatalytic mechanism for three PbBiO 2 X/Ti 3 C 2 composites is proposed based on experimental results and analysis. This work can provide better guidance for the development of Mxene-based nanocomposites for water treatment and other practical applications.