TY - JOUR
T1 - Synthesis of TiO2/g-C3N4 nanocomposites as efficient photocatalysts dependent on the enhanced photogenerated charge separation
AU - Raziq, Fazal
AU - Li, Chengming
AU - Humayun, Muhammad
AU - Qu, Yang
AU - Zada, Amir
AU - Yu, Haitao
AU - Jing, Liqiang
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21
PY - 2015/5/25
Y1 - 2015/5/25
N2 - We have synthesized different mass ratios of effectively-contacted TiO2/bulk g-C3N4 composites (T/CN) by a wet chemical method, and evaluated their photocatalytic activities for degrading acetaldehyde and producing H2. It is clearly demonstrated by means of surface photovoltage responses and photoluminescence spectra that the photogenerated charge carriers in the T/CN nanocomposites with a proper mass ratio of T display much higher separation in comparison to CN alone. This is well responsible for the enhanced photocatalytic activities of CN after coupling with nanocrystalline anatase TiO2. Interestingly, it is also applicable to the resulting CN nanosheet (about 3 nm) with higher photoactivity than the bulk one. As a result, the TiO2/CN-nanosheet composites as efficient photocatalysts have been successfully developed. Moreover, it is confirmed that the enhanced photoactivity for resulting nanocomposites are attributed to the promoted charge transfer and separation from CN to TiO2.
AB - We have synthesized different mass ratios of effectively-contacted TiO2/bulk g-C3N4 composites (T/CN) by a wet chemical method, and evaluated their photocatalytic activities for degrading acetaldehyde and producing H2. It is clearly demonstrated by means of surface photovoltage responses and photoluminescence spectra that the photogenerated charge carriers in the T/CN nanocomposites with a proper mass ratio of T display much higher separation in comparison to CN alone. This is well responsible for the enhanced photocatalytic activities of CN after coupling with nanocrystalline anatase TiO2. Interestingly, it is also applicable to the resulting CN nanosheet (about 3 nm) with higher photoactivity than the bulk one. As a result, the TiO2/CN-nanosheet composites as efficient photocatalysts have been successfully developed. Moreover, it is confirmed that the enhanced photoactivity for resulting nanocomposites are attributed to the promoted charge transfer and separation from CN to TiO2.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0025540815003426
UR - http://www.scopus.com/inward/record.url?scp=84929612024&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2015.05.018
DO - 10.1016/j.materresbull.2015.05.018
M3 - Article
SN - 0025-5408
VL - 70
SP - 494
EP - 499
JO - Materials Research Bulletin
JF - Materials Research Bulletin
ER -