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Table 1 Weight and atomic percentages of elements in Co3O4 nanoparticles and Co3O4/ZnO heterostructures detected by EDX

From: Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co3O4/n-ZnO Heterostructures

Sample Co3O4 Co3O4/ZnO-5 Co3O4/ZnO-15 Co3O4/ZnO-25 Co3O4/ZnO-35 Co3O4/ZnO-45 Co3O4/ZnO-55
Element Co O Zn Co O Zn Co O Zn Co O Zn Co O Zn Co O Zn Co O
Wt.% 66.16 33.84 1.30 70.06 28.64 1.55 69.67 28.78 1.57 70.40 28.03 2.13 69.64 28.23 2.35 66.54 31.11 5.29 64.51 30.20
Atom% 34.67 65.33 0.66 39.64 59.70 0.79 39.34 59.87 0.81 40.21 58.98 1.09 39.67 59.24 1.16 36.31 62.53 2.64 35.74 61.62