With the rapid population growth and exacerbating chemical pollution, clean water has become a critical demand all over the world. Thus, how to develop efficient and effective technology of wastewater treatment has become one of the major challenges for scientists from various fields. (Lai et al., 2019; Li et al., 2018; Lin et al., 2019); Liu et al. (2017); (Liu et al., 2019; Wan and Chung, 2018) Phosphate is often present in wastewater due to the industrial, agricultural and household activities and can lead to water eutrophication and endanger aquatic creatures. (Ooi et al., 2017; Ren et al., 2012) There are over 90% of ecoregion rivers exceeding reference median values of total phosphorus concentration announced by the U.S. Environmental Protection Agency, and about $2.2 billion annual economic loss due to eutrophication in the U.S. freshwaters. (Dodds et al., 2009) Considering that phosphate is an essential and limited element and is widely used in agriculture and various industries, it is imperative to develop technologies that can separate and recycle phosphate from wastewater to not only reduce the impact on the environment but also produce more resources of fresh water and phosphate.