Preparation of nano-sized platinum metal catalyst using photo-assisted deposition method on mesoporous silica including single-site photocatalyst

Shironita, Sayoko; Mori, Kohsuke; Shimizu, Toshiaki; Ohmichi, Tetsutaro; Mimura, Naoki; Yamashita, Hiromi

doi:10.1016/j.apsusc.2008.01.120

Cited by 39 publications

(27 citation statements)

References 12 publications

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“…Commonly used techniques include in situ photodeposition [27,28] and deposition of pre-prepared metal colloids [29,30]. Traditional way for preparing supported metal nanoparticles is impregnation with the appropriate metal salt followed by high temperature hydrogenation [31].…”

Section: Introductionmentioning

confidence: 99%

PtOx-SnOx-TiO2 catalyst system for methanol photocatalytic reforming: Influence of cocatalysts on the hydrogen production

et al. 2018

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Abstract:Effects of modification of PtO x -TiO 2 photocatalysts by tin were elucidated by exploring relationships between the structural properties of variously prepared tin-loaded catalysts and their catalytic activity in methanol photocatalytic reforming. Tin free and amorphous tinoxide decorated TiO 2 samples were prepared by sol-gel method from titanium-isopropoxide.In other approach, Sn was loaded onto the sol-gel prepared TiO 2 by impregnation followed by calcination. Pt was introduced by impregnation followed by either reduction in H 2 at 400 o C or calcination at 300 o C. TEM, XRD and Raman spectroscopic measurements proved that TiO 2 existed in the form of aggregates of polycrystalline anatase with primary particle size of 15-20 nm in each of the samples. Photocatalytic hydrogen production was influenced by the combined effect of many parameters. Both the presence of Sn and the way of Pt co-catalyst formation played important role in the activity of these photocatalysts. The Sn introduction by both sol-gel method and impregnation clearly enhanced the photocatalytic activity.

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Section: Introductionmentioning

confidence: 99%

PtOx-SnOx-TiO2 catalyst system for methanol photocatalytic reforming: Influence of cocatalysts on the hydrogen production

et al. 2018

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“…We have previously reported a novel technique to synthesize nano-sized Pt, Pd, and Ag metal particles on singlesite photocatalyst using a photo-assisted deposition (PAD) method under UV-light irradiation [10][11][12][13]. The isolated and tetrahedrally coordinated Ti-oxide moieties within the framework of zeolite and mesoporous silica are called ''single-site photocatalyst'' [14].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Nano-Sized Platinum Metal Particles on Ti-Containing Mesoporous Silica Using Microwave-Assisted Deposition Method

et al. 2009

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“…Therefore, immobilization of TiO 2 on a support is becoming an important and promising research field. So far, extensively used supports include glass, 22 activated carbon, 23 silica gel 24 and polymeric materials. 25 Zan reported that a photodegradable polyvinyl chloride (PVC)-vitamin C (VC)-TiO 2 nanocomposite film was prepared by embedding VC-modified nano-TiO 2 photocatalyst into commercial PVC.…”

Section: Introductionmentioning

confidence: 99%

Visible light photocatalytic activity of TiO₂/heat‐treated PVC film

Shi

Wang

et al. 2012

J of Chemical Tech & Biotech

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BACKGROUND: Semiconductor TiO 2 has been investigated extensively due to its chemical stability, nontoxicity and inexpensiveness. However, the wide band gap of anatase TiO 2 (about 3.2 eV) only allows it to absorb UV light. TiO 2 nanoparticles modified by conditional conjugated polymers show excellent photocatalytic activity under visible light. However, these conjugated polymers are not only expensive, but also difficult to process. Polyvinyl chloride (PVC) was heat-treated at high temperature to remove HCl and a C C conjugated chain structure was obtained. When TiO 2 nanoparticles were dispersed into the conjugated polymer film derived from PVC, this composites film exhibited high visible light photocatalytic activity.

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Preparation of nano-sized platinum metal catalyst using photo-assisted deposition method on mesoporous silica including single-site photocatalyst

Cited by 39 publications

References 12 publications

PtOx-SnOx-TiO2 catalyst system for methanol photocatalytic reforming: Influence of cocatalysts on the hydrogen production

PtOx-SnOx-TiO2 catalyst system for methanol photocatalytic reforming: Influence of cocatalysts on the hydrogen production

Synthesis of Nano-Sized Platinum Metal Particles on Ti-Containing Mesoporous Silica Using Microwave-Assisted Deposition Method

Visible light photocatalytic activity of TiO₂/heat‐treated PVC film

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Preparation of nano-sized platinum metal catalyst using photo-assisted deposition method on mesoporous silica including single-site photocatalyst

Cited by 39 publications

References 12 publications

PtOx-SnOx-TiO2 catalyst system for methanol photocatalytic reforming: Influence of cocatalysts on the hydrogen production

PtOx-SnOx-TiO2 catalyst system for methanol photocatalytic reforming: Influence of cocatalysts on the hydrogen production

Synthesis of Nano-Sized Platinum Metal Particles on Ti-Containing Mesoporous Silica Using Microwave-Assisted Deposition Method

Visible light photocatalytic activity of TiO2/heat‐treated PVC film

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Visible light photocatalytic activity of TiO₂/heat‐treated PVC film