UV-LED photocatalytic oxidation of carbon monoxide over TiO2 supported with noble metal nanoparticles

2017 ◽  
Vol 314 ◽  
pp. 600-611 ◽  
Author(s):  
N.S. Kolobov ◽  
D.A. Svintsitskiy ◽  
E.A. Kozlova ◽  
D.S. Selishchev ◽  
D.V. Kozlov
Keyword(s):  
Carbon Monoxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Photocatalytic Oxidation ◽  
Noble Metal Nanoparticles ◽  
Uv Led ◽  
Oxidation Of Carbon Monoxide

scholarly journals Noble Metal Nanoparticles Incorporated Siliceous TUD-1 Mesoporous Nano-Catalyst for Low-Temperature Oxidation of Carbon Monoxide

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1067 ◽  
Author(s):  
Badria M. Al-Shehri ◽  
Mohd Shkir ◽  
A. S. Khder ◽  
Ajeet Kaushik ◽  
Mohamed S. Hamdy
Keyword(s):  
Carbon Monoxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Catalytic Performance ◽  
Noble Metal Nanoparticles ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Nano Catalyst ◽  
Nano Catalysts ◽  
Oxidation Of Carbon Monoxide

This report, for the first time, demonstrated the low-temperature oxidation of carbon monoxide (CO) using nano-catalysts consisting of noble metal nanoparticles incorporated in TUD-1 mesoporous silica nano-structures synthesized via a one-pot surfactant-free sol–gel synthesis methodology. Herein, we investigated a nano-catalyst, represented as M-TUD-1 (M = Rh, Pd, Pt and Au), which was prepared using a constant Si/M ratio of 100. The outcome of the analytical studies confirmed the formation of a nano-catalyst ranging from 5 to 10 nm wherein noble metal nanoparticles were distributed uniformly onto the mesopores of TUD-1. The catalytic performance of M-TUD-1 catalysts was examined in the environmentally impacted CO oxidation reaction to CO2. The catalytic performance of Au-TUD-1 benchmarked other M-TUD-1 catalysts and a total conversion of CO was obtained at 303 K. The activity of the other nano-catalysts was obtained as Pt-TUD-1 > Pd-TUD-1 > Rh-TUD-1, with a total CO conversion at temperatures of 308, 328 and 348 K, respectively. The Au-TUD-1 exhibited a high stability and reusability as indicated by the observed high activity after ten continuous runs without any treatment. The outcomes of this research suggested that M-TUD-1 are promising nano-catalysts for the removal of the toxic CO gas and can also potentially be useful to protect the environment where a long-life time, cost-effectiveness and industrial scaling-up are the key approaches.

An insight into the binding behavior of graphene oxide and noble metal nanoparticles

2021 ◽  
Vol 129 (12) ◽  
pp. 125302
Author(s):  
Wajeeha Saeed ◽  
Zeeshan Abbasi ◽  
Shumaila Majeed ◽  
Sohail Anjum Shahzad ◽  
Abdul Faheem Khan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
Binding Behavior ◽  
Insight Into

scholarly journals Exterior and Internal Uniform Loading of Pt Nanoparticles on Yolk-Shell La2O3 by Acoustic Levitation Synthesis with Enhanced Photocatalytic Performance

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 107 ◽  
Author(s):  
Ming Qin ◽  
Qing Chang ◽  
Yinkai Yu ◽  
Hongjing Wu
Keyword(s):  
Metal Oxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Shell Structure ◽  
Photocatalytic Performance ◽  
Chemical Interaction ◽  
Pt Nanoparticles ◽  
Noble Metal Nanoparticles ◽  
Homogeneous Distribution ◽  
Acoustic Levitation

By the deposition of noble metal nanoparticles on a metal oxide substrate with a specific micro-/nanostructure, namely, yolk-shell structure, a remarkable improvement in photocatalytic performance can be achieved by the composites. Nevertheless, noble metal nanoparticles only distribute on the surface shell of metal oxide substrates when the conventional wet-chemistry reduction approach is employed. Herein, we proposed a novel acoustic levitation synthesis of Pt nanoparticles deposited on yolk-shell La2O3. The composites not only displayed well-defined, homogeneous distribution of Pt NPs on the exterior shell of La2O3 and the interior La2O3 core, but an enhanced chemical interaction between Pt and La2O3. The unique structure not only can display improved photocatalytic degradation rate toward methyl orange, but also may show great potential in fields of hydrogen generation, environmental protection, etc. The novel acoustic levitation synthesis can supplement the methodology of synthesizing well dispersed noble metal oxides over the whole yolk-shell structure through noble metal NPs deposition method.

Photo-chemical synthesis and deposition of noble metal nanoparticles

2006 ◽  
Vol 86 (4) ◽  
pp. 477-480 ◽  
Author(s):  
C.E. Allmond ◽  
A.T. Sellinger ◽  
K. Gogick ◽  
J.M. Fitz-Gerald
Keyword(s):  
Chemical Synthesis ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles

Noble metal nanoparticles supported on titanate nanotubes as catalysts for selective hydrogenation of nitroarenes

2021 ◽  
Author(s):  
Krishnamoorthy Shanmugaraj ◽  
Tatiana M. Bustamante ◽  
J.N. Díaz de León ◽  
Radhamanohar Aepuru ◽  
Ramalinga Viswanathan Mangalaraja ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Selective Hydrogenation ◽  
Titanate Nanotubes ◽  
Noble Metal Nanoparticles
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