Liu, Q., Tian, H., Dai, Z., Sun, H., Liu, J., Ao, Z., Wang, S., Han, C. and Liu, S. (2020) “Nitrogen-doped Carbon Nanospheres-Modified Graphitic Carbon Nitride with Outstanding Photocatalytic Activity”, Nano-Micro Letters, 12, p. 24. doi: 10.1007/s40820-019-0358-x.