Synthesis of 3D ordered macroporous TiO2-supported Au nanoparticle photocatalysts and their photocatalytic performances for the reduction of CO2 to methane

Jiao, Jinqing; Wei, Yuechang; Zhao, Zhen; Zhong, Wenjia; Liu, Jian; Li, Jianmei; Duan, Aijun; Jiang, Guiyuan

doi:10.1016/j.cattod.2015.01.030

Cited by 75 publications

(44 citation statements)

References 36 publications

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“…for TiO 2 NPs has been proposed as follows [34][35][36]: The binding energies in the Ti 2p XPS spectrum (Fig. 4c), which were observed at [32,39]. Fig.…”

Section: Synthesis and Morphological Characterizationmentioning

confidence: 98%

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A mild synthetic route to Fe3O4@TiO2-Au composites: preparation, characterization and photocatalytic activity

Guo

et al. 2015

Applied Surface Science

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“…for TiO 2 NPs has been proposed as follows [34][35][36]: The binding energies in the Ti 2p XPS spectrum (Fig. 4c), which were observed at [32,39]. Fig.…”

Section: Synthesis and Morphological Characterizationmentioning

confidence: 98%

“…A UV-3010 spectrophotometer was used to measure the UV-Vis absorption spectrum of an RhB solution at different irradiation intervals. The surface photovoltage (SPV) measurements of Fe 3 O 4 @TiO 2 and Fe 3 O 4 @TiO 2 -Au were performed on a lock-in based SPV measurement system at room temperature under an air atmosphere[29][30][31][32].…”

mentioning

confidence: 99%

A mild synthetic route to Fe3O4@TiO2-Au composites: preparation, characterization and photocatalytic activity

Guo

et al. 2015

Applied Surface Science

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“…In the case of reactions which need a transition metal, catalyst nanoparticles (Au, Ag, Pt, Pd, AuPd, etc) uniformly distributed on the inside walls of the membrane are obtained by adding a metallic salt during the synthesis of the porous membrane [287][288][289]. A very promising application of 3DOM TiO 2 with Au nanoparticles is photocatalysis [290,291]. Indeed very high activity (larger than Au/TiO 2 powder catalysts) has been obtained for the reduction of CO 2 in methane with visible light.…”

Section: Application In Heterogeneous Catalysismentioning

confidence: 99%

Nonisotropic Self‐Assembly of Nanoparticles: From Compact Packing to Functional Aggregates

et al. 2018

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Quantum strongly correlated systems that exhibit interesting features in condensed matter physics often need an unachievable temperature or pressure range in classical materials. One solution is to introduce a scaling factor, namely, the lattice parameter. Synthetic heterostructures named superlattices or supracrystals are synthesized by the assembling of colloidal atoms. These include semiconductors, metals, and insulators for the exploitation of their unique properties. Most of them are currently limited to dense packing. However, some of desired properties need to adjust the colloidal atoms neighboring number. Here, the current state of research in nondense packing is summarized, discussing the benefits, outlining possible scenarios and methodologies, describing examples reported in the literature, briefly discussing the challenges, and offering preliminary conclusions. Penetrating such new and intriguing research fields demands a multidisciplinary approach accounting for the coupling of statistic physics, solid state and quantum physics, chemistry, computational science, and mathematics. Standard interactions between colloidal atoms and emerging fields, such as the use of Casimir forces, are reported. In particular, the focus is on the novelty of patchy colloidal atoms to meet this challenge.

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“…The survey spectrum shown in Figure a verified that the expected elements Na, F, Y, Ti, O, Yb, and Tm exist in NaYF 4 :Yb,Tm@TiO 2 composite. As shown in the high‐resolution Ti 2p spectra (Figure b), the two peaks at 458.6 eV and 464.3 eV are attributed to the core levels of Ti 2p 3/2 and Ti 2p 1/2 , which is typical for Ti 4+ . The signal of O 1s at 529.9 eV (Figure c) is ascribed to the lattice oxygen in the metal oxide, and the other peak at 531.5 eV is assigned to chemisorbed oxygen and/or ‐OH group .…”

Section: Resultsmentioning

confidence: 99%

“…Two XPS peaks located at 159.8 eV and 161.9 eV in Figure d are corresponding to Y 3d 3/2 and Y 3d 1/2 , respectively. In addition, the signals of Na 1s at 1072.7 eV and F 1s at 685.9 eV are also detected, as shown in Figures e and 6 f, respectively.…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of NaYF₄:Yb,Tm@TiO₂ Core‐Shell Structured Composite with Enhanced Photocatalytic Activity for Degradation of RhB Dye

et al. 2019

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It is an effective method to explore the full spectrum responsive photocatalysts for enhancing their photocatalytic activity. Herein, we have combined the upconversion phosphor with semiconductor to design the full‐spectrum light responsive photocatalyst. A facile approach has been developed for synthesis of NaYF4:Yb,Tm@TiO2 core‐shell structured composite. The morphologies, crystal phases, chemical compositions, optical performance, and photoelectric properties were characterized. Based on SEM and TEM observation, the formation mechanism of NaYF4:Yb,Tm@TiO2 composite was discussed in detail. The results of photodegradation experiment showed that 22% of Rhodamine B dye in the solution was photodegradated by NaYF4:Yb,Tm@TiO2 composite under NIR light irradiation within 150 min, suggesting that the NaYF4:Yb,Tm@TiO2 core‐shell structured composite displayed photocatalytic activity under NIR light irradiation. Furthermore, the photocatalytic ability of NaYF4:Yb,Tm@TiO2 is obvious superior to that of TiO2 under the full‐spectrum light irradiation.

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Synthesis of 3D ordered macroporous TiO2-supported Au nanoparticle photocatalysts and their photocatalytic performances for the reduction of CO2 to methane

Cited by 75 publications

References 36 publications

A mild synthetic route to Fe3O4@TiO2-Au composites: preparation, characterization and photocatalytic activity

A mild synthetic route to Fe3O4@TiO2-Au composites: preparation, characterization and photocatalytic activity

Nonisotropic Self‐Assembly of Nanoparticles: From Compact Packing to Functional Aggregates

Facile Synthesis of NaYF₄:Yb,Tm@TiO₂ Core‐Shell Structured Composite with Enhanced Photocatalytic Activity for Degradation of RhB Dye

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Synthesis of 3D ordered macroporous TiO2-supported Au nanoparticle photocatalysts and their photocatalytic performances for the reduction of CO2 to methane

Cited by 75 publications

References 36 publications

A mild synthetic route to Fe3O4@TiO2-Au composites: preparation, characterization and photocatalytic activity

A mild synthetic route to Fe3O4@TiO2-Au composites: preparation, characterization and photocatalytic activity

Nonisotropic Self‐Assembly of Nanoparticles: From Compact Packing to Functional Aggregates

Facile Synthesis of NaYF4:Yb,Tm@TiO2 Core‐Shell Structured Composite with Enhanced Photocatalytic Activity for Degradation of RhB Dye

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Product

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Facile Synthesis of NaYF₄:Yb,Tm@TiO₂ Core‐Shell Structured Composite with Enhanced Photocatalytic Activity for Degradation of RhB Dye