Synthesis and properties of Fe/SBA-15

Ruchomski, Leszek; Pikus, S.; Pikula, T.; Mączka, Edward; Kosmulski, Marek

doi:10.1016/j.colsurfa.2020.124922

Cited by 13 publications

(8 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the presence of the discrete sextet with B hf = 52.2 T also provided evidence for the hematite state (Table S2). Also, the existence of Fe 3+ superparamagnetic species bearing in silica was confirmed by the hyperfine parameters of the central doublet, further constituting a surface [−Si–O–Fe–O−] interacted phase to stabilize these active iron species and contribute to more thermal electron-transporting channel. , This gave strong evidence for favoring the stabilized effect of the siliceous microsheet on the high energy of active iron oxides. In addition, the observed well-defined spectra result further indicated that the formed iron oxides mainly existed as the α-Fe 2 O 3 phase including combined cluster and nanofiber in one single phase.…”

Section: Resultsmentioning

confidence: 90%

Visible-Light-Responsive Nanofibrous α-Fe₂O₃ Integrated FeOx Cluster-Templated Siliceous Microsheets for Rapid Catalytic Phenol Removal and Enhanced Antibacterial Activity

Yang

Zhou

Dong

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Visible-light-driven environmental contaminants control using 2D photocatalytic nanomaterials with an unconfined reaction–diffusion path is advantageous for public health. Here, cost-effective siliceous composite microsheets (FeSiO-MS) combined with two distinct refined α-Fe2O3 nanospecies as photofunctional catalysts were constructed via a one-pot synthesis approach. Through precise control of Fe2+ precursor addition, specially configured α-Fe2O3 nanofibers combined with FeOx cluster-functionalized siliceous microsheets of ∼15 nm gradually evolved from the iron oxide-bearing molecular sieve, endowing a superior light-response characteristic of the formed nanocomposite. The catalytic experiment along with the ESR study demonstrated that the produced FeSiO-MS showed reinforced photo-Fenton reactivity, which was effective for rapid phenol degradation under visible light radiation. Moreover, the phenol removal process was found to be regulated by the specially configured types and concentrations of iron oxides. Notably, the obtained composites exhibited a considerable visible-light-induced bactericidal effect against E. coli. The constructed FeSiO-MS nanocomposites as integrated and eco-friendly photocatalysts exhibit enormous potentials for environmental and hygienic application.

show abstract

Section: Resultsmentioning

confidence: 90%

Visible-Light-Responsive Nanofibrous α-Fe₂O₃ Integrated FeOx Cluster-Templated Siliceous Microsheets for Rapid Catalytic Phenol Removal and Enhanced Antibacterial Activity

Yang

Zhou

Dong

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…After metal immobilization, the morphology was preserved to form W-Fe@SBA-15 (Figure B). The catalysts showed mesoporous particles of a homogeneous size and an organized hexagonal shape . This image showed a network of parallel channels in the composite.…”

Section: Results and Discussionmentioning

confidence: 94%

“…A wide peak pattern at 2θ = 23.30° is assigned to silicone dioxide (a component of SBA-15) . For the metal-supported catalyst, high-angle XRD peaks at 2θ = 20.45, 42.62, 44.44, and 52.23 o ( W-Fe@SBA-15 ) were seen . Despite the presence of iron in W-Fe@SBA-15 , no similarities to Fe 2 O 3 on the mesoporous crystalline silica surface as expressed in high-angle XRD were detected (range 10–80).…”

Section: Results and Discussionmentioning

confidence: 99%

“…The values for W-Fe@SBA-15 were found to be 0.96, 1.59, and 1.86°, which might be possible due to the metal present inside the pores. This leads to a higher scattering of powder inside the pores, which causes a loss of peak strength considering the phase withdrawal between the metal and pore walls. , The peak positions with a slight change in the 2θ values were determined using PXRD patterns of SBA-15, Fe-, W-, and Fe-W in addition to SBA-15 (Figure ). XRD peaks were observed at 2θ = 1.01, 1.42, and 1.79° for Fe@SBA-15 and 0.95, 1.58, and 1.75° W@SBA-15.…”

Section: Results and Discussionmentioning

confidence: 99%

“…The catalysts showed mesoporous particles of a homogeneous size and an organized hexagonal shape. 10 This image showed a network of parallel channels in the composite. The elementary composition across a particle is also shown in Figure 3C.…”

Section: Microscopic Characterization [Scanning Electron Microscopy−e...mentioning

confidence: 96%

See 2 more Smart Citations

Development of a Sustainable Tungsten and Iron Bimetal-Immobilized SBA-15 Composite for Enhanced Wet Catalytic Oxidation of Dye Capacity

Patel

Mayani²,

Mayani

2022

ACS Omega

View full text Add to dashboard Cite

In this study, wet catalytic decomposition of Orange (II) dye was carried out with tungsten and iron bimetalincorporated mesoporous SBA-15 (W-Fe@SBA-15) under visible light. The synthesized hybrid composite material was characterized by physicochemical methods, powder X-ray diffraction (PXRD) spectroscopy, scanning electron microscopy combined with energy-dispersive X-ray (SEM−EDX) spectroscopy studies, Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), atomic force microscopy (AFM), thermogravimetric analysis (TGA), and surface property studies to understand the nature of the dye degradation process and for catalytic studies. The maximum degradation of Orange (II) dye measured by a UV−visible spectrophotometer was 99% at a contaminant volume of 2.7 × 10 −4 mol/L and a catalyst quantity of 2 g/ L in 140 min reaction time. Using gas chromatography−mass spectrometry (GC−MS), the final products were chemically identified. The mechanistic steps of the process were carried out through a series of experiments. The recyclability of the catalyst added a novel feature for such a heterogeneous catalysis that can reduce secondary pollutants in water with no leaching effect observed.

show abstract

Highly Stable Univalent Copper of a Cu@Al/SBA‐15 Nanocomposite Catalyzes the Synthesis of Fluorescent Aminobenzotriazoles Derivatives

Luo

Tian

Pei

et al. 2021

Chemistry A European J

View full text Add to dashboard Cite

With the development of green chemistry, it is still a challenge to maintain the unstable valence state of the metal in heterogeneous catalysts and realize new catalytic synthesis methods. In this paper, it is reported that an univalent copper nanocomposite (Cu@Al/SBA‐15) can efficiently catalyze the formation of novel amino‐containing benzotriazoles with great fluorescence properties in a new synthetic strategy. Subsequently, its application is further verified by an acylation reaction to produce a series of novel benzotriazoles derivatives with high yield. It is worth noting that the Cu@Al/SBA‐15 nanocomposites not only enable the reaction completed with high yield in a short time, but can also be recycled many times without a significant reduction in activity, and the leaching of copper and aluminum species in reaction system is negligible. Finally, the detailed and feasible reaction mechanism is also provided.

show abstract

Synthesis and properties of Fe/SBA-15

Cited by 13 publications

References 33 publications

Visible-Light-Responsive Nanofibrous α-Fe₂O₃ Integrated FeOx Cluster-Templated Siliceous Microsheets for Rapid Catalytic Phenol Removal and Enhanced Antibacterial Activity

Visible-Light-Responsive Nanofibrous α-Fe₂O₃ Integrated FeOx Cluster-Templated Siliceous Microsheets for Rapid Catalytic Phenol Removal and Enhanced Antibacterial Activity

Development of a Sustainable Tungsten and Iron Bimetal-Immobilized SBA-15 Composite for Enhanced Wet Catalytic Oxidation of Dye Capacity

Highly Stable Univalent Copper of a Cu@Al/SBA‐15 Nanocomposite Catalyzes the Synthesis of Fluorescent Aminobenzotriazoles Derivatives

Contact Info

Product

Resources

About

Synthesis and properties of Fe/SBA-15

Cited by 13 publications

References 33 publications

Visible-Light-Responsive Nanofibrous α-Fe2O3 Integrated FeOx Cluster-Templated Siliceous Microsheets for Rapid Catalytic Phenol Removal and Enhanced Antibacterial Activity

Visible-Light-Responsive Nanofibrous α-Fe2O3 Integrated FeOx Cluster-Templated Siliceous Microsheets for Rapid Catalytic Phenol Removal and Enhanced Antibacterial Activity

Development of a Sustainable Tungsten and Iron Bimetal-Immobilized SBA-15 Composite for Enhanced Wet Catalytic Oxidation of Dye Capacity

Highly Stable Univalent Copper of a Cu@Al/SBA‐15 Nanocomposite Catalyzes the Synthesis of Fluorescent Aminobenzotriazoles Derivatives

Contact Info

Product

Resources

About

Visible-Light-Responsive Nanofibrous α-Fe₂O₃ Integrated FeOx Cluster-Templated Siliceous Microsheets for Rapid Catalytic Phenol Removal and Enhanced Antibacterial Activity

Visible-Light-Responsive Nanofibrous α-Fe₂O₃ Integrated FeOx Cluster-Templated Siliceous Microsheets for Rapid Catalytic Phenol Removal and Enhanced Antibacterial Activity