Pd/Ag and Pd/Au bimetallic nanocatalysts on mesoporous silica for plasmon-mediated enhanced catalytic activity under visible light irradiation

2016 ◽  
Vol 4 (26) ◽  
pp. 10142-10150 ◽  
Author(s):  
Priyanka Verma ◽  
Yasutaka Kuwahara ◽  
Kohsuke Mori ◽  
Hiromi Yamashita
Keyword(s):  
Catalytic Activity ◽  
Mesoporous Silica ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Systematic Comparison ◽  
Bimetallic Nanostructures ◽  
Bimetallic Nanocatalysts ◽  
Catalytic Performances

A systematic comparison of plasmonic properties and catalytic performances has been performed with Pd deposited bimetallic nanostructures of plasmonic Ag and Au.

Synthesis of mesoporous silica-supported Ag nanorod-based bimetallic catalysts and investigation of their plasmonic activity under visible light irradiation

2017 ◽  
Vol 7 (12) ◽  
pp. 2551-2558 ◽  
Author(s):  
Priyanka Verma ◽  
Yasutaka Kuwahara ◽  
Kohsuke Mori ◽  
Hiromi Yamashita
Keyword(s):  
Mesoporous Silica ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Bimetallic Catalysts ◽  
Light Irradiation ◽  
Catalytic Performances

Bimetallic Ag nanorod-based heterogeneous plasmonic nanocatalysts were synthesized for obtaining excellent catalytic performances under visible light irradiation.

Photocatalytic degradation of naproxen by a H2O2-modified titanate nanomaterial under visible light irradiation

2019 ◽  
Vol 9 (17) ◽  
pp. 4614-4628 ◽  
Author(s):  
Gongduan Fan ◽  
Jiajun Zhan ◽  
Jing Luo ◽  
Jin Zhang ◽  
Zhong Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Influencing Factors ◽  
Visible Light Irradiation ◽  
Intermediate Product ◽  
Degradation Mechanism ◽  
Light Irradiation ◽  
Transformation Pathways

A H2O2-modified titanate nanomaterial was synthesized to improve catalytic activity. The influencing factors, intermediate product transformation pathways and degradation mechanism of the photodegradation process of NPX by the HTNM were studied.

Efficient visible-light-induced hydrogen evolution from water splitting using a nanocrystalline nickel phosphide catalyst

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24361-24365 ◽  
Author(s):  
Weiming Wu ◽  
Xianyang Yue ◽  
Xiao-Yuan Wu ◽  
Can-Zhong Lu
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Good Stability ◽  
High Catalytic Activity ◽  
Nickel Phosphide

Nanocrystalline Ni12P5 was synthesized by a simple hydrothermal method. It showed high catalytic activity (10 760 μmol h−1 g−1, TOF = 9.3 h−1) and good stability (15 h) for the hydrogen evolution from water under visible light irradiation.

scholarly journals Photo-Fenton degradation of ethyl xanthate catalyzed by bentonite-supported Fe(II)/phosphotungstic acid under visible light irradiation

2018 ◽  
Vol 2017 (2) ◽  
pp. 473-480 ◽  
Author(s):  
Guangtao Wei ◽  
Yunshang Li ◽  
Shuya Cai ◽  
Zhongmin Li ◽  
Jihua Mo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Phosphotungstic Acid ◽  
Light Irradiation ◽  
High Catalytic Activity ◽  
Ethyl Xanthate ◽  
Applicable Range ◽  
Almost All ◽  
Excellent Stability

Abstract In this study, using bentonite-supported Fe(II)/phosphotungstic acid composite (HPW-Fe-Organicbent) prepared by mechanochemical synthesis as heterogeneous catalyst, the photo-Fenton degradation of ethyl xanthate under visible light irradiation was studied in detail. The results showed that the degradation of ethyl xanthate was mainly impacted by H2O2 dosage, catalyst dosage and reaction time. HPW-Fe-Organicbent catalyst had a wide applicable range of pH and kept a high catalytic activity even at high pH in the photo-Fenton degradation of ethyl xanthate. It was found that the degradation of ethyl xanthate in the photo-Fenton process catalyzed by HPW-Fe-Organicbent mainly resulted from the hydroxyl radicals. HPW-Fe-Organicbent had an excellent stability in use, and retained almost all of its catalytic activity for four recycling times. Moreover, the kinetics study showed the degradation of ethyl xanthate, with the initial concentration below 50 mg/L, was well fitted by the pseudo-first-order rate model.

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