Synthesis of TiO2NWS@AuNPS Composite Catalyst for Methylene Blue Removal.

ABSTRACT: In this article, HBP-NH₂-modified titania nanowire (TiO2NWS)-decorated Au nanoparticles (TiO2NWS@AuNPS) were synthesized by one-step method. The role of HBP-NH₂ concentration in the formation of TiO2NWS was investigated. The fineness and uniformity of pure TiO2NWS were enhanced by absorbed amino groups from amino-terminated hyperbranched polymer (HBP-NH₂). The morphology and crystal structure of TiO2NWS and TiO2NWS@AuNPS were examined by transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fournier transform infrared (FTIR) spectroscopy. The chemical states of gold, titanium and oxygen were analyzed by X-ray photoelectron spectroscopy (XPS). The results showed that at the concentration of HBP-NH₂ 100 g/L, the mean diameter of TiO2NWS was nearly 72 nm and Au nanoparticles we

SUBMITTER: Fu F 

PROVIDER: S-EPMC6025176 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature