Synergy of palladium species and hydrogenation for enhanced photocatalytic activity of {001} facets dominant TiO2 nanosheets

2017 ◽  
Vol 32 (14) ◽  
pp. 2781-2789 ◽  
Author(s):  
Zhipeng Lyu ◽  
Bing Liu ◽  
Ran Wang ◽  
Lihong Tian
Keyword(s):  
Photocatalytic Activity ◽  
Tio2 Nanosheets ◽  
Image Position

Abstract

Few-Layered MoS2 Nanoparticles Loaded TiO2 Nanosheets with Exposed {001} Facets for Enhanced Photocatalytic Activity

NANO ◽  
2018 ◽  
Vol 13 (11) ◽  
pp. 1850129 ◽  
Author(s):  
Chujun Chen ◽  
Xia Xin ◽  
Jinniu Zhang ◽  
Gang Li ◽  
Yafeng Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Charge Carrier ◽  
Visible Light ◽  
Recombination Rate ◽  
Active Species ◽  
Molar Ratio ◽  
Carrier Recombination ◽  
Tio2 Nanosheets ◽  
Photocatalytic Activities ◽  
Charge Carrier Recombination

To improve the high charge carrier recombination rate and low visible light absorption of {001} facets exposed TiO2 [TiO2(001)] nanosheets, few-layered MoS2 nanoparticles were loaded on the surfaces of TiO2(001) nanosheets by a simple photodeposition method. The photocatalytic activities towards Rhodamine B (RhB) were investigated. The results showed that the MoS2–TiO2(001) nanocomposites exhibited much enhanced photocatalytic activities compared with the pure TiO2(001) nanosheets. At an optimal Mo/Ti molar ratio of 25%, the MoS2–TiO2(001) nanocomposites displayed the highest photocatalytic activity, which took only 30[Formula: see text]min to degrade 50[Formula: see text]mL of RhB (50[Formula: see text]mg/L). The active species in the degradation reaction were determined to be h[Formula: see text] and [Formula: see text]OH according to the free radical trapping experiments. The reduced charge carrier recombination rate, enhanced visible light utilization and increased surface areas contributed to the enhanced photocatalytic performances of the 25% MoS2–TiO2(001) nanocomposites.

Enhanced photocatalytic activity and upconversion luminescence of flowerlike hierarchical Bi2MoO6 microspheres by Er3+ doping

2012 ◽  
Vol 27 (11) ◽  
pp. 1471-1475 ◽  
Author(s):  
Naiying Fan ◽  
Yajie Chen ◽  
Qingmao Feng ◽  
Cheng Wang ◽  
Kai Pan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Upconversion Luminescence ◽  
Image Position

Abstract

Mechanistic understanding of the increased photoactivity of TiO2 nanosheets upon tantalum doping

2022 ◽  
Author(s):  
Hanggara Sudrajat ◽  
Sri Hartuti ◽  
Sandhya Babel
Keyword(s):  
Photocatalytic Activity ◽  
Recombination Rate ◽  
Electron Lifetime ◽  
Electron Population ◽  
Electron Traps ◽  
Tio2 Nanosheets ◽  
Mechanistic Understanding

Doping of Ta5+ into TiO2 replaces Ti4+ to decrease the recombination rate and elongate the electron lifetime due to the formation of shallow electron traps from Ti3+ defects. The elongated electron lifetime increases electron population and photocatalytic activity.

In situ hydrothermal etching fabrication of CaTiO3 on TiO2 nanosheets with heterojunction effects to enhance CO2 adsorption and photocatalytic reduction

2019 ◽  
Vol 9 (2) ◽  
pp. 336-346 ◽  
Author(s):  
Jinjin Lin ◽  
Jiangshan Hu ◽  
Chengwei Qiu ◽  
Huijuan Huang ◽  
Lu Chen ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Co2 Adsorption ◽  
Photocatalytic Reduction ◽  
Tio2 Nanosheets

In situ fabricated CaTiO3/TiO2 heterojunction shows highly photocatalytic activity for reduction of CO2 to CO with H2O.

Novel Tm3+/Yb3+–co-doped Bi2MoO6: Synthesis, characterization, and enhanced photocatalytic activity under visible-light irradiation

2020 ◽  
Vol 35 (3) ◽  
pp. 312-320
Author(s):  
Zuowei Zhang ◽  
Hongshun Hao ◽  
Shanshan Jin ◽  
Yunxia Hou ◽  
Hongman Hou ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Image Position ◽  
Co Doped

Abstract

A new Ag/Bi7Ta3O18 plasmonic photocatalyst with a visible-light-driven photocatalytic activity

2017 ◽  
Vol 32 (19) ◽  
pp. 3650-3659 ◽  
Author(s):  
HongWei Li ◽  
Hekai Zhu ◽  
Meng Wang ◽  
Xin Min ◽  
Minghao Fang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Plasmonic Photocatalyst ◽  
Visible Light Driven ◽  
Image Position

Abstract

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