Firstly, light with higher energy than bandgap of semiconductor is absorbed and afterwards induces a transition of electrons from the valence band to the conduction band, leaving an equal number of holes in the valence band. Secondly, the excited electrons and holes migrate to the surface. ...
The NH4PbI3has typical structure of perovskites. As it is shown in Fig.1, the NH4+occupies the A site and breaks the symmetry of the convention cubic perovskites. In our calculations, when the atomic positions of A, B and X site are pre-fixed at high-symmetric position, this cubic phas...
sulfate radicals produced during TPO were able to effectively remove ammonia, like COD. Sulfate radicals, as a strong oxidizing agent, most likely gain electrons from the reductive ammonia nitrogen (NH3 and NH4þ), so that the nitrogen of ammonia is oxidized to a higher valence state (e.g....
aSulfate radicals, as a strong oxidizing agent, most likely gain electrons from the reductive ammonia nitrogen (NH3 and NH4þ), so that the nitrogen of ammonia is oxidized to a higher valence state (e.g. N2). Furthermore, persulfate significantly removed ammonia only at a high dose (S2O2...
number of researchers to exploit more advanced rechargeable aqueous batteries [2,3,4]. Under this circumstance, aqueous monovalent and polyvalent ion batteries have been greatly developed and opened the path for practical applications. The inherent security, low price, and high ionic conductivity of ...