Upgrading oxygen vacancy and reducibility for enhancing synchronous abatement of Hg0 and toluene over Co-Mn-Ce trimetallic oxides fortified biochar catalysts - Jiaqing Li; Yanyan Feng; Lei Gao; Ping Fang; Yunqing Wang; Caiting Li; Jinke Xie; Yukai Quan; Siyou Li (Journal of Environmental Chemical Engineering, 2026)