Fig. 5From: Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reductiona The time-dependent UV-vis absorption spectrum and b plot of lnA versus time for the reduction of 4-NP to 4-AP in the presence of Ag@HPS-1 catalystBack to article page