High photocatalytic activity of immobilized TiO2 nanorods on carbonized cotton fibers

A Facile Low‐Temperature Hydrothermal Method to Prepare Anatase Titania/Cellulose Aerogels with Strong Photocatalytic Activities for Rhodamine B and Methyl Orange Degradations

“…XPS measurements were performed to elucidate the surface chemical composition and the oxidation state of ATC aerogels. In the high-resolution XPS spectra of Ti 2p (Figure 3(a)), the binding energies of Ti 2p 3/2 and 2p 1/2 were centered at 457.2 and 462.5 eV, respectively, which revealed that the titanium elements were in the oxidation state IV, corresponding to Ti 4+ (TiO 2 ) [26,27]. Meanwhile, the result also suggested that the ellipsoidal substances observed by SEM were composed of TiO 2 particles; besides, the nanoparticles in the TEM images might be exactly the generated TiO 2 particles.…”

3D flower-like ironphthalocyanine hierarchical microstructures: solvothermal-fabrication and high visible light photocatalytic properties

“…As observed inFigure 2a, four main reflection peaks appeared at 2θ = 11.8°, 17.7° and 27.1° could be indexed to the diffraction peaks of TNFePc, respectively[19]. The FT-IR spectrum of flower-like TNFePc hierarchical microstructures was shown inFigure 2b, it was observed that the flower-like TNFePc hierarchical microstructures appeared several7 absorption peaks at around 727, 755, 910, 1090, 1141 and 1605 cm -1 , which might be assigned to phthalocyanine skeletal and metal-ligand vibrations, respectively[20].And, the other absorption peaks at 1521, 1337 and 850 cm -1 might be assigned to the asymmetric N-O stretching, symmetric N-O stretching and C-NO 2 stretching due to the nitro groups present in the structure of the TNFePc molecule[21].Additionally, the chemical composition and purity of the flower-like TNFePchierarchical microstructures were studied by XPS analysis. The fully scanned spectrum in Figure 3a demonstrated that C, N, O, and Fe elements existed in the flower-like TNFePc hierarchical microstructures, respectively.…”

“…Owing to the urgent need for a clean and comfortable environment, photocatalysis as a ''green" technique, offers great potential use for the elimination of toxic chemicals in the environment through its efficiency and broad applicability [1][2][3][4]. TiO 2 has been deemed to be an efficient photocatalyst due to its relatively high photocatalytic activity and chemical stability [5][6][7]. However, a major handicap is its rather large optical band gap (3.2 eV for the anatase phase), which means it can only 3 be activated by ultraviolet (UV) light (λ < 400 nm).…”

A Route Toward Smart System Integration: From Fiber Design to Device Construction

“…Cotton fibers (Figure b) have been applied in fiber‐based solar cells, supercapacitors, and sensors . Cotton fibers commonly serve as flexible substrates, which thereafter are coated by conductive materials or carbonized . Silk (Figure c) has a similar situation to cotton fiber, which has a verified wide application in energy generation, energy storage and sensing .…”