The X-ray powder
diffraction patterns
of the products were recorded on a Bruker D8 ADVANCE X-ray diffractometer
equipped with Cu Kα radiation (λ = 0.154060 nm), at a
scanning rate of 0.2° s–1 and 2θ ranging
from 10° to 80°. SEM images were obtained on Hitachi S-4800
field emission scanning electron microscope, operated at 5 kV. TEM/HRTEM
images and SAED pattern of the samples were obtained from a JEOL-2011
transmission electron microscope working at an accelerating voltage
of 200 kV. The room temperature hysteresis loops of the products were
measured using a superconducting quantum interference device operating
at room temperature (300 K) with an applied field up to 1.0 T. UV–vis
absorption spectra were recorded using a Metash 6100 UV–vis
absorption spectrophotometer (Shanghai). The OD of bacteria was measured
using UV-2000 spectrophotometer.
diffraction patterns
of the products were recorded on a Bruker D8 ADVANCE X-ray diffractometer
equipped with Cu Kα radiation (λ = 0.154060 nm), at a
scanning rate of 0.2° s–1 and 2θ ranging
from 10° to 80°. SEM images were obtained on Hitachi S-4800
field emission scanning electron microscope, operated at 5 kV. TEM/HRTEM
images and SAED pattern of the samples were obtained from a JEOL-2011
transmission electron microscope working at an accelerating voltage
of 200 kV. The room temperature hysteresis loops of the products were
measured using a superconducting quantum interference device operating
at room temperature (300 K) with an applied field up to 1.0 T. UV–vis
absorption spectra were recorded using a Metash 6100 UV–vis
absorption spectrophotometer (Shanghai). The OD of bacteria was measured
using UV-2000 spectrophotometer.