Removing Cr(VI) from aqueous solutions using a functional ionic liquid-based cross-linked polymer Gao, Hejun Wang, Yun Zheng, Liqiang Ahmad, R. Kumar, R. Anirudhan, T.S. Jalajamony, S. Suchithra, P.S. Barrera-Diaz, C.E. Lugo-Lugo, V. ... Published in Journal of Environmental Management