查找使用阿拉丁产品的科研文献

Robust photo-assisted removal of NO at room temperature: Experimental and density functional theory calculation with optical carrier

Yanqin Li,Junqi Tian,Zhisong Liu,Zhongqi Liu,Dong Dong,Fu Wang,Wei Wang,Minmin Liu,Jianming Dan,Yongsheng Li,Feng Yu,Bin Dai,Yunbo Yu

Photo-assisted SCR (PSCR) offers a potential solution for removal of NO at room temperature. MnTiO x as PSCR catalyst exhibits superior performance with NO removal of 100% at the room temperature. Electron paramagnetic resonance (EPR) analysis revealed the presence of numerous oxygen vacancies on MnTiO x . Optical carrier density functional theory (DFT) calculations showed that the three-dimensional orbital hybridization of Mn and Ti is significantly enhanced under light irradiation. The MnTiO x catalyst exhibited excellent electron–hole separation ability, which can adsorbe NH 3 and dissociate to form NH 2 fragments and H atoms. In-situ diffuse reflectance infrared fourier-transform spectroscopy (DRIFTS) indicated that the optical carrier enhanced NH 3 adsorption on MnTiO x , which makes it possess excellent PSCR activity. This work provided an additional strategy to NO removal with PSCR catalysts and showed potential for use in photocatalysis.