The Preparation and Application of PAN Nanofibers Loaded MnO_2 Nano/microparticles with High Performance of Formaldehyde Decomposition

摘要

To enhance the formaldehyde decomposition performance of original MnO_2 powder, the polyacrylonitrile nanofibers loaded with MnO_2 nano/microparticles (denoted as MnO_2/PAN) was prepared via a facile method, which combined the low-temperature liquid phase deposition and electrospinning. With the assistance of electrospinning, MnO_2 nano/microparticles can distribute uniformly on both outside and inside of PAN nanofibers. Such a hybrid nanostructure would effectively enhance the specific surface area, thence facilitating the catalytic decomposition of formaldehyde. As a result, the MnO_2/PAN nanofibers manifest a high-efficiency catalytic capacity of formaldehyde decomposition, with around 44.0% formaldehyde removal rate after 12h (60 °C, pH = 2). In addition, it also shows a better reusability than pure MnO_2 powder.