Novel Synthesis of Plasmonic Ag/AgCl@TiO2 Continues Fibers with Enhanced Broadband Photocatalytic Performance

Abstract

Abstract:The plasmonic Ag/AgCl@TiO 2 fiber (S-CTF) photocatalyst was synthesized by a two-step approach, including the sol-gel and force spinning method for the preparation of TiO 2 fibers (TF), and the impregnation-precipitation-photoreduction strategy for the deposition of Ag/AgCl onto the fibers. NaOH aqueous solution was utilized to hydrolyze TiCl 4 , to synthesize TF and remove the byproduct HCl, and the produced NaCl was recycled for the formation and deposition of Ag/AgCl. The surface morphology, specific surface area, textural properties, crystal structure, elemental compositions and optical absorption of S-CTF were characterized by a series of instruments. These results revealed that the AgCl and Ag 0 species were deposited onto TF successfully, and the obtained S-CTF showed improved visible light absorption due to the surface plasmon resonance of Ag 0 . In the photocatalytic degradation of X-3B, S-CTF exhibited significantly enhanced activities under separate visible or UV light irradiation, in comparison to TF.

Carbon Dot−NaCl Crystals for White‐Light Generation and Fabry‐Perot Lasing

“…The characteristic XRD pattern of CDs−NaCl is correlated well with the previous report [12,21] . The diffraction peaks at 31.7° indicate (200), 45.4° indicates (220), 57.3° indicates (222) and 66.2° indicates (400) plane of NaCl [21–22] . Both BCDs−NaCl and FCDs−NaCl crystals show same crystallinity profile.…”

“…[12,21] The diffraction peaks at 31.7°indicate (200), 45.4°indicates (220), 57.3°i ndicates (222) and 66.2°indicates (400) plane of NaCl. [21][22] Both BCDsÀ NaCl and FCDsÀ NaCl crystals show same crystallinity profile. The peak at 26.6°indicates the (002) plane of the CDs.…”

Sterilized chitosan‐based composite hydrogels: Physicochemical characterization and in vitro cytotoxicity

“…The PBS is composed mainly of sodium chloride, so remaining crystals are present in the dried samples. The different samples exhibited strong reflections at 2θ = 27.4° and 31.7° associated with the presence of sodium chloride crystals (Bao et al, ). The intensity of the diffraction peaks at 2θ = 20° increased with increasing the chitosan concentration (R2 > R4 > R1 ≈ R3) due to encouraging the formation of crystalline regions (Figure b) (Costa‐Júnior, Barbosa‐Stancioli, Mansur, Vasconcelos, & Mansur, ; Islam, Riaz, & Yasin, ).…”

Titanium Dioxide Photocatalysis

“…The use of plasmonic nanomaterials in photocatalysis [14] has gained great attention due to their ability to enhance the reaction yield of semiconductor photocatalysts. In this contribution, Bao et al coupled plasmonic Ag nanoparticles to high-surface-area TiO 2 nanofibers to achieve a very active photocatalyst toward dye molecule degradation, showing enhanced performance when using the plasmonic Ag/TiO 2 material.…”