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

Abstract

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.

Edge-Rich Bicrystalline 1T/2H-MoS2 Cocatalyst-Decorated {110} Terminated CeO2 Nanorods for Photocatalytic Hydrogen Evolution

“…Therein, 1T/2H-MC heterojunction presented the shortest arc radius, reflecting the minimum electrical resistance. 51 As a result, it can be reasonably concluded that the presence of metallic 1T-phase of MoS 2 is beneficial for the high-efficiency separation and transfer of photogenerated charges within the 1T/2H-MC heterostructures, thus effectively inhibiting the electron−hole recombination.…”

Efficient Prevention of Aspergillus flavus Spores Spread in Air Using Plasmonic Ag-AgCl/α-Fe2O3 under Visible Light Irradiation

“…As an earth-abundant, visible light responding semiconductor material, α-Fe 2 O 3 had a narrow band gap (2.1–2.4 eV) and received much attention . It was easy to control α-Fe 2 O 3 morphology and structure, and α-Fe 2 O 3 with different microstructures, shapes, and particle sizes were selected to construct heterojunction composite used in photocatalytic applications. − Therefore, α-Fe 2 O 3 could be regarded as an alternative candidate component to form heterojunction composite for enhancing photocatalytic efficiencies.…”

Enabling room-temperature reductive C–N coupling of nitroarenes: combining homogeneous and heterogeneous synergetic catalyses mediated by light

“…S1a†), suggesting the dominant stacked mesoporous voids. 38 Besides, the BJH analysis reveals α-MoO 3 -S affording a larger average pore size (Fig. S1b†) because more voids are among these nanosheets.…”