The paper describes the synthesis of novel W18O49/BiOCl core/shell nanowire (NW) heterojunction. The heterojunction was in situ fabricated by one-step solvo-thermal method with the starting materials of WCl6 and Bi(NO3)2 in the presence of n-propanol as solvent. With the increasing of the concentration of Bi(NO3), the morphology of W18O49/BiOCl assembles from initial spindle-like NW into uniform, ordered, and closely arranged NW clusters. Controlled experiments indicate the nitrate anion contributes to the assembly. In addition, W18O49/BiOCl were confirmed as the core/shell NW architecture with W18O49 NW as core and BiOCl as shell. The activity for the degradation of MO under simulated sunlight are 3.94-fold and 5.03-fold faster than that of individual W18O49 and BiOCl, respectively. Moreover, the unstable W18O49 shows excellent stability. The improved photoactivity and photostability benefits from the unique architecture of W18O49/BiOCl to provide an intimate interface between the BiOCl and W18O49, which may have contributed to the efficient transfer, separation and collection of photo-induced electron-hole.

Self-assembled W<sub>18</sub>O<sub>49</sub>/BiOCl core/shell nanowire cluster: Applications in photocatalysis

247th National Meeting (2014)

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Self-assembled W18O49/BiOCl core/shell nanowire cluster: Applications in photocatalysis

Self-assembled W₁₈O₄₉/BiOCl core/shell nanowire cluster: Applications in photocatalysis