Zhu, Lei, Ze-Da Meng, Chong-Yeon Park, Jong-Geun Choi, Trisha Ghosh, and Won-Chun Oh. 2012. “Nanosized NiS2-Photosensitized TiO2 Coating on Multi-Walled Carbon Nanotubes With Higher Visible Light Photocatalytic Activity”. Asian Journal of Chemistry 24 (9):4191-96. https://asianpubs.org/index.php/ajchem/article/view/9581.