scholarly journals CaCu3Ti4O12, an efficient catalyst for ibuprofen removal by activation of peroxymonosulfate under visible-light irradiation

2018 ◽  
Vol 17 (1) ◽  
pp. 481-486 ◽  
Author(s):  
Yunqing Zhu ◽  
Tian Wang ◽  
Wenjuan Wang ◽  
Siyu Chen ◽  
Eric Lichtfouse ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Efficient Catalyst

A photoinduced reaction of perfluoroalkyl halides with 1,3-diarylprop-2-yn-1-ones catalyzed by DABSO

2017 ◽  
Vol 4 (9) ◽  
pp. 1745-1750 ◽  
Author(s):  
Yuewen Li ◽  
Yiye Lu ◽  
Runyu Mao ◽  
Zhiming Li ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Halogen Bond ◽  
Theoretical Calculations ◽  
Light Irradiation ◽  
Efficient Catalyst ◽  
Photoinduced Reaction ◽  
Plausible Mechanism ◽  
Perfluoroalkyl Halides

The sulfur dioxide surrogate of DABCO·(SO2)2 is used as an efficient catalyst for the cleavage of the perfluoroalkyl-halogen bond under visible-light irradiation. A plausible mechanism supported by theoretical calculations is proposed.

The promoting effect of visible light on the CO + NO reaction over the Pd/N–TiO2 catalyst

2019 ◽  
Vol 9 (14) ◽  
pp. 3637-3646
Author(s):  
Xiaofang Tan ◽  
Gang Cheng ◽  
Xinjie Song ◽  
Xun Chen ◽  
Wenxin Dai ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
No Reduction ◽  
Light Irradiation ◽  
Promoting Effect ◽  
Efficient Catalyst ◽  
Tio2 Catalyst ◽  
No Reduction By Co ◽  
Lower Temperature

Pd/N–TiO2 was readily synthesized as an efficient catalyst for NO reduction by CO at lower temperature under visible light irradiation.

Straightforward catalyst/solvent-free iodine-mediated living radical polymerization of functional monomers driven by visible light irradiation

2016 ◽  
Vol 52 (72) ◽  
pp. 10850-10853 ◽  
Author(s):  
Xiaodong Liu ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
Xiulin Zhu
Keyword(s):  
Visible Light ◽  
Radical Polymerization ◽  
Visible Light Irradiation ◽  
Living Radical Polymerization ◽  
Solvent Free ◽  
Light Irradiation ◽  
Efficient Catalyst ◽  
Functional Monomers ◽  
Polymerization System ◽  
Free Iodine

A simple and highly efficient catalyst/solvent-free iodine-mediated polymerization system for functional monomers (DMAEMA, PEGMA and GMA) was successfully developed under irradiation of visible light or sunlight.

Cu Doped TiO2: Visible Light Assisted Photocatalytic Antimicrobial Activity and High Temperature Anatase Stability

2018 ◽  
Author(s):  
Snehamol Mathew ◽  
Priyanka Ganguly ◽  
Stephen Rhatigan ◽  
Vignesh Kumaravel ◽  
Ciara Byrne ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Density Functional ◽  
Anatase Phase ◽  
Sol Gel ◽  
Chemical Properties ◽  
Light Irradiation ◽  
Health Concern ◽  
Bacterial Inactivation ◽  
X Ray

Indoor surface contamination by microbes is a major public health concern. A damp environment is one potential sources for microbe proliferation. Smart photocatalytic coatings on building surfaces using semiconductors like titania (TiO<sub>2</sub>) can effectively curb this growing threat.<b> </b>Metal-doped titania in anatase phase has been proved as a promising candidate for energy and environmental applications. In this present work, the antimicrobial efficacy of copper (Cu) doped TiO<sub>2 </sub>(Cu-TiO<sub>2</sub>) was evaluated against <i>Escherichia coli</i> (Gram-negative) and <i>Staphylococcus aureus</i> (Gram-positive) under visible light irradiation. Doping of a minute fraction of Cu (0.5 mol %) in TiO<sub>2 </sub>was carried out <i>via</i> sol-gel technique. Cu-TiO<sub>2</sub> further calcined at various temperatures (in the range of 500 °C – 700 °C) to evaluate the thermal stability of TiO<sub>2</sub> anatase phase. The physico-chemical properties of the samples were characterised through X-ray diffraction (XRD), Raman spectroscopy, X-ray photo-electron spectroscopy (XPS) and UV-visible spectroscopy techniques. XRD results revealed that the anatase phase of TiO<sub>2</sub> was maintained well, up to 650 °C, by the Cu dopant. UV-DRS results suggested that the visible light absorption property of Cu-TiO<sub>2 </sub>was enhanced and the band gap is reduced to 2.8 eV. Density functional theory (DFT) studies emphasises the introduction of Cu<sup>+</sup> and Cu<sup>2+</sup> ions by replacing Ti<sup>4+</sup> ions in the TiO<sub>2</sub> lattice, creating oxygen vacancies. These further promoted the photocatalytic efficiency. A significantly high bacterial inactivation (99.9%) was attained in 30 mins of visible light irradiation by Cu-TiO<sub>2</sub>.

Photo-Fenton Degradation of RhB over Nano-fibre Iron Oxides Interacted Montmorillonite under Visible Light Irradiation

2013 ◽  
Vol 33 (10) ◽  
pp. 1736-1741
Author(s):  
Shilong ZHANG ◽  
Xiaoming HU ◽  
Xiaowei WANG ◽  
Shijing LIANG ◽  
Ling WU
Keyword(s):  
Visible Light ◽  
Iron Oxides ◽  
Visible Light Irradiation ◽  
Light Irradiation
Sign in / Sign up

Export Citation Format

Share Document