Enhanced performance of LaFeO3 perovskite for peroxymonosulfate activation through strontium doping towards 2,4-D degradation

Carbonized propagation synthesis of porous CQDs–SrTiO3/graphene and its photocatalytic performance for removal of methylene blue

“…3a–c show that SrTiO 3 is composed of irregular crystal particles, 0.5–1 μm in size, with uniform orientation, and the 110-plane crystal interplanar spacing is 0.195 nm. 32 Fig. 3d–f show the sheet-like structure of graphene.…”

Activation of Peroxymonosulfate Using Secondary Pyrolysis Oil-Based Drilling Cuttings Ash for Pollutant Removal

“…• OH, SO 4 •– , and 1 O 2 were possible ROS for HA removal according to the previous studies. 39 − 41 To evaluate the contribution of • OH, SO 4 •– , and 1 O 2 to HA removal, according to the relative report, EtOH was used as a radical quencher for • OH and SO 4 •– and TBA was used as radical quencher for • OH. Tryptophan was used as a radical quencher for 1 O 2 .…”

“…The radical quenching tests (Figure ) were performed to identify the role of ROS in HA removal. • OH, SO 4 •– , and 1 O 2 were possible ROS for HA removal according to the previous studies. − To evaluate the contribution of • OH, SO 4 •– , and 1 O 2 to HA removal, according to the relative report, EtOH was used as a radical quencher for • OH and SO 4 •– and TBA was used as radical quencher for • OH. Tryptophan was used as a radical quencher for 1 O 2 . , The results of radical quenching tests indicated that the addition of tryptophan severely inhibited the removal of HA, while EtOH and TBA had only slight inhibition effect for HA removal.…”

Synergistic photocatalytic and Fenton-like degradation of MO by nanocatalyst La0.7Sr0.3Mn0.85Fe0.15O3

“…Jie et al found that BiFe 0.8 Cu 0.2 O 3 exhibits the best performance compared with undoped BiFeO 3 , which can remove 91% of phenol (10 mg/L) within 120 min (Jie et al 2018). Cheng et al found that La 0.5 Sr 0.5 FeO 3 (LSF50) with a lower valence state of Fe and abundant oxygen vacancies exhibited excellent catalytic activity for peroxymonosulfate (PMS) activation and degradation of 2,4-dichlorophenoxyacetic acid (2,4-D), which is 5.7 times higher than the catalytic activity of LaFeO 3 (LFO) (Cheng et al 2019). Jia et al found that when SrTiO 3 is doped with Ni and La, the absorption edge of SrTiO 3 powder is transferred from 380 to 700 nm.…”