Atomic‐Layered Cu<sub>5</sub> Nanoclusters on FeS<sub>2</sub> with Dual Catalytic Sites for Efficient and Selective H<sub>2</sub>O<sub>2</sub> Activation
Cancan Ling, Xiufan Liu, Hao Li, Xiaobing Wang, Huayu Gu, Kai Wei, Meiqi Li, Yanbiao Shi, Haijie Ben, Guangming Zhan, Chuan Liang, Wenjuan Shen, Yaling Li, Jincai Zhao, Lizhi Zhang
Abstract
Abstract Regulating the distribution of reactive oxygen species generated from H 2 O 2 activation is the prerequisite to ensuring the efficient and safe use of H 2 O 2 in the chemistry and life science fields. Herein, we demonstrate that constructing a dual Cu−Fe site through the self‐assembly of single‐atomic‐layered Cu 5 nanoclusters onto a FeS 2 surface achieves selective H 2 O 2 activation with high efficiency. Unlike its unitary Cu or Fe counterpart, the dual Cu−Fe sites residing at the perimeter zone of the Cu 5 /FeS 2 interface facilitate H 2 O 2 adsorption and barrierless decomposition into ⋅OH via forming a bridging Cu‐O‐O‐Fe complex. The robust in situ formation of ⋅OH governed by this atomic‐layered catalyst enables the effective oxidation of several refractory toxic pollutants across a broad pH range, including alachlor, sulfadimidine, p‐nitrobenzoic acid, p‐chlorophenol, p‐chloronitrobenzene. This work highlights the concept of building a dual catalytic site in manipulating selective H 2 O 2 activation on the surface molecular level towards efficient environmental control and beyond.