By using green synthesis of zinc oxide nanoparticles is doped with silver nanoparticles, whether the particle size is decreased or increased. If increased or decreased why?
1) Novel Green Biomimetic Approach for Preparation of Highly Stable Au-ZnO Heterojunctions with Enhanced Photocatalytic Activity
DOI: 10.1021/acsanm.8b00272
2) Green biomimetic preparation of efficient Ag-ZnO heterojunctions with excellent photocatalytic performance under solar light irradiation: A novel biogenic-deposition-precipitation approach
If after analysis you get the formula AgZnO, then the size of the old nanoparticle will increase. If you get the formula 0.7 Ag 0.3 ZnO, the size of the nanoparticle will decrease. In order to calculate why this happens, compare the volumes of 1 g of your nanoparticles, calculating them according to the formulas and densities of substances.