Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 342 - 350 |
| Number of pages | 9 |
| Journal | Applied Catalysis B-Environmental |
| Volume | 188 |
| DOIs | |
| Publication status | Published - 2016 |
Cite this
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Growth of g-C3N4 on mesoporous TiO2 spheres with high photocatalytic activity under visible light irradiation. / Chen, Xiaofang; Wei, Jing; Hou, Rujing; Liang, Yan; Xie, Zongli; Zhu, Yonggang; Zhang, Xiwang; Wang, Huanting.
In: Applied Catalysis B-Environmental, Vol. 188, 2016, p. 342 - 350.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Growth of g-C3N4 on mesoporous TiO2 spheres with high photocatalytic activity under visible light irradiation
AU - Chen, Xiaofang
AU - Wei, Jing
AU - Hou, Rujing
AU - Liang, Yan
AU - Xie, Zongli
AU - Zhu, Yonggang
AU - Zhang, Xiwang
AU - Wang, Huanting
PY - 2016
Y1 - 2016
N2 - Growth of graphitic carbon nitride on mesoporous TiO2 spheres with well-controlled structures was achieved by melt-infiltrating dicyandiamide (DICY). The molten DICY diffused into the porous structure of TiO2 , and g-C3 N4 was produced inside the mesopores formed by packing of TiO2 nanoparticles at higher temperature, resulting in a better fused g-C3 N4 -TiO2 heterostructure. The formation of a strong interfacial connection between TiO2 and g-C3 N4 by this preparation method greatly improved the separation efficiency of photo-generated electrons and holes. TiO2 /g-C3 N4 composites exhibited much higher photo- catalytic activity than TiO2 and g-C3 N4 towards the degradation of Rhodamine B under both UV light and UV–vis light irradiation. The heterostructured combination provided a synergistic photocatalytic activity through an efficient electron transfer process. Based on the experimental results, a possible mechanism for the improved photocatalytic performance was proposed. The factors affecting the photocatalytic activ- ity were also discussed based on the result of structure analysis, optical and photoelectric characteristics, and photocatalytic reactions.
AB - Growth of graphitic carbon nitride on mesoporous TiO2 spheres with well-controlled structures was achieved by melt-infiltrating dicyandiamide (DICY). The molten DICY diffused into the porous structure of TiO2 , and g-C3 N4 was produced inside the mesopores formed by packing of TiO2 nanoparticles at higher temperature, resulting in a better fused g-C3 N4 -TiO2 heterostructure. The formation of a strong interfacial connection between TiO2 and g-C3 N4 by this preparation method greatly improved the separation efficiency of photo-generated electrons and holes. TiO2 /g-C3 N4 composites exhibited much higher photo- catalytic activity than TiO2 and g-C3 N4 towards the degradation of Rhodamine B under both UV light and UV–vis light irradiation. The heterostructured combination provided a synergistic photocatalytic activity through an efficient electron transfer process. Based on the experimental results, a possible mechanism for the improved photocatalytic performance was proposed. The factors affecting the photocatalytic activ- ity were also discussed based on the result of structure analysis, optical and photoelectric characteristics, and photocatalytic reactions.
UR - http://www.sciencedirect.com/science/article/pii/S092633731630094
U2 - 10.1016/j.apcatb.2016.02.012
DO - 10.1016/j.apcatb.2016.02.012
M3 - Article
VL - 188
SP - 342
EP - 350
JO - Applied Catalysis B-Environmental
JF - Applied Catalysis B-Environmental
SN - 0926-3373
ER -