Open Access Research Paper Views (731) Fabrication of perovskite-type oxide nanopowders as a novel adsorbent in removal of Bromo Thymol Blue dye from aqueous solutions Zohreh Zaman, Haman Tavakkoli J. Biodiv. & Environ. Sci. 6(4), 552-561, April 2015. Keywords: Bromo thymol blue, Isotherm, Nanopowder, Perovskite-type oxide Details