Tetrahedral Silver Phosphate/Graphene Oxide Hybrids as Highly Efficient Visible Light Photocatalysts with Excellent Cyclic StabilityJ,Phys.Chem.C, 2017,121:25172-25179Yaxin Liu, Dongzhi Yang,a* Ruomeng Yu, Jin Qu, Hongfei Li, and Zhong-Zhen Yua,b*