Qingyun Lv; Xiaosai Hu; Xiaoling Zhang; Liyan Huang; Zhengping Liu; Guoxing Sun. Highly efficient removal of trace metal ions by using poly(acrylic acid) hydrogel adsorbent. Mater. Des. 2019, 181, 11. DOI: 10.1016/j.matdes.2019.107934.