Synthesis and characterization of silver/talc nanocomposites using the wet chemical reduction method

Figures & data

Figure 1 Photographs of AgNO₃/talc suspension (A0) and silver-talc nanocomposite suspension at different AgNO₃ concentrations, ie, (A1) 0.5%, (A2) 1.0%, (A4) 2.0%, and (A5) 5%.

Figure 2 Ultraviolet-visible absorption spectra of silver-talc nanocomposite suspensions for different AgNO₃ concentrations, ie, (A1) 0.5%, (A2) 1.0%, (A3) 1.5%, (A4) 2.0%, (A5) 5%, and (A0) AgNO₃/talc suspension in the absence of NaBH₄.

Figure 3 Transmission electron microscopy images of (A) pure talc and (B) talc after impregnation with aqueous AgNO₃ (AgNO₃/talc, A0).

Figure 4 Transmission electron microscopy images and corresponding particle size distribution of silver-talc nanocomposites at different AgNO₃ concentrations [(A2) 1.0% (A–B), (A4) 2.0% (C–D) and (A5) 5.0% (E–F)].

Figure 5 Scanning electron microscopy micrographs of the talc (A) and silver-talc nanocomposites at different AgNO₃ concentrations [(A2) 1.0% (B), (A4) 2.0% (C), and (A5) 5.0% (D)].

Figure 6 Powder X-ray diffraction patterns of talc and silver-talc nanocomposites for determination of d-spacing (d_s) at different AgNO₃ concentrations [0.5%, 1.0%, 1.5%, 2.0% and 5.0% (A1–A5), respectively].

Figure 7 Powder X-ray diffraction patterns of talc and silver-talc nanocomposites for determination of silver crystals at different AgNO₃ concentrations [0.5%, 1.0%, 1.5%, 2.0% and 5.0% (A1–A5), respectively].

Figure 8 Fourier transform infrared spectra of talc and silver-talc nanocomposites at 1 (A2), 2 (A4) and 5 (A5) wt% silver nanoparticles.