Fabrication and performance of novel multifunctional sodium alginate/polyvinylpyrrolidone hydrogels.

In this work, a novel alginate/polyvinylpyrrolidone (SA/PVP-Fe) hydrogel spheres were prepared by cross-linking with Fe ions after blending sodium alginate with polyvinylpyrrolidone. The degradation performance of the hydrogels was assessed through the degradation of phenol, achieving 100% degradation and about 64% total organic carbon (TOC) mineralization within 60 min (initial concentration of phenol = 20 mg/L; HO concentration = 5 mM; initial pH = 6.5; catalyst dosage = 1.

Yolk-shell structured composite for fast and selective lithium ion sieving.

Yolk-shell structured C@LiTiO microspheres composed of carbon core (ca. 500 nm) and sea urchin-like LiTiO shell (ca. 400-500 nm) are formed by hydrothermally treating the core-shell structured C@TiO in the EtOH/HO solution of LiOH and calcining it in N atmosphere.

Carbon-Dot-Sensitized, Nitrogen-Doped TiO2 in Mesoporous Silica for Water Decontamination through Nonhydrophobic Enrichment-Degradation Mode.

Mesoporous silica synthesized from the cocondensation of tetraethoxysilane and silylated carbon dots containing an amide group has been adopted as the carrier for the in situ growth of TiO2 through an impregnation-hydrothermal crystallization process. Benefitting from initial complexation between the titania precursor and carbon dot, highly dispersed anatase TiO2 nanoparticles can be formed inside the mesoporous channel. The hybrid material possesses an ordered hexagonal mesostructure with p6mm symmetry, a high specific surface area (446.

Multifluorescently traceable nanoparticle by a single-wavelength excitation with color-related drug release performance.

Monodisperse and nanometer-sized periodic mesoporous organosilicas co-doped with fluorescence resonance energy transfer cascades composed of triple fluorophores at various ratios were prepared. These nanoparticles exhibit multifluorescent emissions by a single-wavelength excitation and were designed for the application as multichannelly traceable drug carriers. Different from the hydrophilic framework of inorganic mesoporous silica and hydrophobic framework of mesoporous carbon, these multifluorescent nanoparticles have intrinsically different and finely tunable pore surface polarities governed by the type and amount of fluorophore inside the framework.