Corrigendum to "Macroscopic and microscopic investigation of Cr(VI) immobilization by nanoscaled zero-valent iron supported zeolite MCM-41 vis batch, visual, XPS and EXAFS techniques" [J. Clean. Prod. 181 (2018) 745-752. (20th July 2019) - Chen, Zhongshan; Wei, Dongli; Li, Qian; Wang, Xiangxue; Yu, Shujun; Liu, Lu; Liu, Bei; Xie, Shengyu; Wang, Jian; Chen, Diyun; Hayat, Tasawar; Wang, Xiangke