Corrigendum to “Water-assisted ions in situ intercalation for porous polymeric graphitic carbon nitride nanosheets with superior photocatalytic hydrogen evolution performance” [Appl. Catal. B: Environ. 190 (2016) 93–102, (S0926337316301680), (10.1016/j.apcatb.2016.03.002)]

The authors regret that the Fig. 7c and Fig. 11a in the original manuscript should be revised, because the ‘after reaction’ data in the figure was misused as ‘before reaction’ data when the authors processed XRD data. The authors mistakenly used the pristine g-C₃N₄ and exfoliated g-C₃N₄ samples as ‘Bulk-CN’ and ‘Nanosheet-CN’ when they combined the figure of XPS valence band spectra. The revised Fig. 7c and Fig. 11a are presented below.[Formula presented] Revised version of Fig. 7. (c) total densities of states of XPS valence band spectra.[Formula presented] Revised version of Fig. 11. (a) The XRD pattern of porous nanosheets-CN before and after reaction. Although this mistake occurred, it does not impact the discussion and overall conclusions drawn in the article. The authors would like to apologise for any inconvenience caused.