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MnO 2 ‐Based Materials for Environmental Applications
Author(s) -
Yang Ruijie,
Fan Yingying,
Ye Ruquan,
Tang Yuxin,
Cao Xiehong,
Yin Zongyou,
Zeng Zhiyuan
Publication year - 2021
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202004862
Subject(s) - materials science , environmental pollution , nanotechnology , fabrication , environmentally friendly , heterojunction , ternary operation , environmental science , computer science , medicine , ecology , environmental protection , alternative medicine , pathology , biology , optoelectronics , programming language
Abstract Manganese dioxide (MnO 2 ) is a promising photo–thermo–electric‐responsive semiconductor material for environmental applications, owing to its various favorable properties. However, the unsatisfactory environmental purification efficiency of this material has limited its further applications. Fortunately, in the last few years, significant efforts have been undertaken for improving the environmental purification efficiency of this material and understanding its underlying mechanism. Here, the aim is to summarize the recent experimental and computational research progress in the modification of MnO 2 single species by morphology control, structure construction, facet engineering, and element doping. Moreover, the design and fabrication of MnO 2 ‐based composites via the construction of homojunctions and MnO 2 /semiconductor/conductor binary/ternary heterojunctions is discussed. Their applications in environmental purification systems, either as an adsorbent material for removing heavy metals, dyes, and microwave (MW) pollution, or as a thermal catalyst, photocatalyst, and electrocatalyst for the degradation of pollutants (water and gas, organic and inorganic) are also highlighted. Finally, the research gaps are summarized and a perspective on the challenges and the direction of future research in nanostructured MnO 2 ‐based materials in the field of environmental applications is presented. Therefore, basic guidance for rational design and fabrication of high‐efficiency MnO 2 ‐based materials for comprehensive environmental applications is provided.