Activation of persulfate by magnetic zirconium-doped manganese ferrite for efficient degradation of tetracycline

Large-Scale Synthesis of p–n Heterojunction Bi2O3/TiO2 Nanostructures as Photocatalysts for Removal of Antibiotics under Visible Light

“…In order to give a deeper evaluation of the photodegradation capacity, TOC measurement was carried out. TOC removal gradually increases with prolonged irradiation time, and a high mineralization capacity with a TOC removal of 75.6% within 180 min is achieved (Figure S12), further indicating that most of the TC molecules can be mineralized into CO 2 and H 2 O. Additionally, the result exhibits a higher TOC value for the degradation of TC than many previous reports. − Notably, we further investigated the photocatalytic degradation of TC by using the Bi 2 O 3 /TiO 2 samples prepared through bigger reactors as photocatalysts. The enlarged Bi 2 O 3 /TiO 2 samples manifest the same surface area, light absorption, crystal structure, and photocatalytic performances of TC (Figures S13 and 14) as the Bi 2 O 3 /TiO 2 sample prepared by using a small reactor (Figure and Figure S9), strongly indicating a considerable potential for further scale-up production.…”

Bi2O2CO3/Bi2O3 Z-scheme photocatalyst with oxygen vacancies and Bi for enhanced visible-light photocatalytic degradation of tetracycline

“…Subsequently, the further effect of the O 2 ˙ − radicals caused P1 to be oxidized and open its ring to generate P2 ( m / z = 338). 64…”

“…Subsequently, the further effect of the O 2 ˙− radicals caused P1 to be oxidized and open its ring to generate P2 (m/z = 338). 64 Subsequently, these intermediates were further oxidized to small molecules and finally mineralized to CO 2 and H 2 O. Scavenger-quenching experiments were conducted to further investigate the contributions of different reactive species during the degradation of TC. Isopropanol (IPA), methyl alcohol (MeOH), histidine (His) and 4-hydroxy-2,2,6,6tetramethylpiperidinyloxy (TEMPOL) were employed as scavengers of hydroxyl radical (˙OH), photogenerated holes (h + ), singlet oxygen ( 1 O 2 ) and superoxide radicals (O 2 ˙−), respectively.…”

Monodisperse-porous Mn5O8 microspheres as an efficient catalyst for fast degradation of organic pollutants via peroxymonosulfate activation

“…Also, there are some studies in which composite bimetallic oxide-based heterogeneous catalysts were used for the efficient removal of organic pollutants. 18,[20][21][22][23][24][25][26][27] In our previous studies, various types of porous matrices were synthesized and evaluated in different applications as a sorbent or catalyst. [28][29][30][31] Recently, monodisperse-porous Mn 5 O 8 microspheres were synthesized by staged-shape templated decomposition of KMnO 4 and evaluated as an oxidation catalyst.…”

“…Also, there are some studies in which composite bimetallic oxide-based heterogeneous catalysts were used for the efficient removal of organic pollutants. 18,20–27…”