Influence of W doped ZrV2O7 on structure, negative thermal expansion property and photocatalytic performance

(a) TEM image and (b) Polyhedral representation of ZrV1.6Mo0.4O7.2; (c) Thermal expansion curves and (d) Degradation curves of ZrV2−xWxO7+δ (x = 0, 0.1, 0.2, 0.3, and 0.4).