Catalytic degradation of methylene blue in aqueous solution using cobalt oxide kaolin nanocomposite. - Miskir, Bamlaku Abebaw; Mohammed, Kedir Seid; Asmare, Zinabu Gashaw; Atlabachew, Minaleshewa; Liu, Yong; Shiferaw, Tibebu; Mehari, Bewketu; Aragaw, Belete Asefa (Discover Nano, 2026)