Electrospinning Fabricating Au/TiO2 Network-like Nanofibers as Visible Light Activated Photocatalyst

Abstract

Exploiting photocatalysts with characteristics of low cost, high reactivity and easy recovery offer great potentials for complete elimination of toxic chemicals and environmental remediation. In this work, Au/TiO 2 network-like nanofibers were fabricated using a facile electrospinning technique followed by calcinations in air. Photocatalytic tests indicate that the Au/TiO 2 network-like nanofibers possess an excellent photodegradation rate of rhodamine B (RB) under UV, visible and natural light radiation. The enhanced photocatalytic activity can be attributed to the plasmonic resonance absorption of Au nanoparticles, and photogenerated electrons and holes are effectively separated by the Au/TiO 2 heterojunction structures. Furthermore, the three-dimensional network structure can provide a large number of active sites for RB degradation.

Fabrication of spent FCC catalyst composites by loaded V2O5 and TiO2 and their comparative photocatalytic activities

“…TiO 2 shows the band gap is 3.25 eV. The band gap energy of the V-Ti/FCC and V-Ti-2/FCC samples are estimated to be 2.18 eV and 2.30 eV 31–33 . The partial absorption in the visible range is determined by the band gap energy value, which shows that these samples have potential photocatalytic activity.…”

Analysis of resistance to bending of metal electroconductive layers deposited on textile composite substrates in PVD process

“…The production of elastic electronics is possible in spray coating processes using carbon nanotubes, graphene flakes or nanofibers, electroless plating, sputtering, physical vacuum deposition, plasma coating or digital printing 4,[8][9][10][11][12][13] . To fabricate the electroconducting elements on or in textile substrates the varied methods are usually used: the embroidery 14 , dip coating 15 , electrospinning 16 , electroless plating 17,18 , ink-jet or screen printing method 19,20 , thin metallic wires or yarns 3 , metal-coated fibres 21,22 , conductive fibers produced by doping intrinsically conductive polymers 23 , the fibers with metallic core and the outer polymer coating, and even with the liquid metal core 24 , sputtering [25][26][27] or chemical and physical vacuum deposition 2,7 . The 3D printing method is also used to direct deposition of electroconductive architectures on textiles.…”

Graphene Oxide Coated Zinc Oxide Core–Shell Nanofibers for Enhanced Photocatalytic Performance and Durability

“…In general, photocatalysts are in particle form, which tends to aggregate. Most importantly, the recoverability of photocatalyst and purification process is hampered severely due to possibility of making a slurry with polluted materials [40]. To achieve a high degree of utilization of photocatalyst for an extended period, immobilization on fibrous sheet-typed materials with a large surface has often been employed [41].…”