676
L. Zheng et al.
wt%, 1.5 wt%, 2 wt%, and 2.5 wt%) was varied for purification of the solutions. The
spectrophotometric method was used for measuring the cobalt and germanium ion
concentrations to determine the purification percentages.
Fig. 1 XRD pattern of zinc powder
Table 2 Chemical reagents
for purification
Material
Purity
Provider
Sb 2 O 3
≥99.5%
Aladdin
CuSO 4 · 5H 2 O AR
Sinopharm Chemical Reagent
Co., Ltd.
CoSO 4 · 7H 2 O ≥99%
Aladdin
GeO
≥99.99% Sinopharm Chemical Reagent
Co., Ltd.
ZnO
AR
Ron Reagent Company
L. Zheng et al.
wt%, 1.5 wt%, 2 wt%, and 2.5 wt%) was varied for purification of the solutions. The
spectrophotometric method was used for measuring the cobalt and germanium ion
concentrations to determine the purification percentages.
Fig. 1 XRD pattern of zinc powder
Table 2 Chemical reagents
for purification
Material
Purity
Provider
Sb 2 O 3
≥99.5%
Aladdin
CuSO 4 · 5H 2 O AR
Sinopharm Chemical Reagent
Co., Ltd.
CoSO 4 · 7H 2 O ≥99%
Aladdin
GeO
≥99.99% Sinopharm Chemical Reagent
Co., Ltd.
ZnO
AR
Ron Reagent Company