Stable all-solid-state Z-scheme heterojunction Bi2O3-Co3O4@C microsphere photocatalysts for recalcitrant pollutant degradation

New application of resin macrospheres: preparation of Bi2O3/C photocatalysts from an inexpensive organic carbon source and their application in dye wastewater treatment

“…The Bi(OH) 3 /D113 was as amorphous as D113. 21 The XRD patterns of C, Bi 2 O 3 , and the composite Bi 2 O 3 /C prepared at different calcination temperatures are shown in Fig. 1(a).…”

“…Bi(OH) 3 /D113 macrospheres (2 g) were weighed, then calcined under air at 400 1C, 500 1C, and 600 1C, at a heating rate of 3 1C min À1 for 1-3 h. 21 The obtained macrospheres were denoted as Bi 2 O 3 /C-400, Bi 2 O 3 /C-500, and Bi 2 O 3 /C-600, respectively. Bi(OH) 3 was obtained by hydrothermal reaction of Bi(NO 3 ) 3 Á5H 2 O. Bi 2 O 3 and C were obtained from Bi(OH) 3 and C under the same calcination conditions as above.…”

Photocatalytic removal of imidacloprid containing frequently applied insecticide in agriculture industry using Co3O4 modified MoO3 composites

“…Frontiers in Chemistry frontiersin.org gap, good charge transportability and p-type semiconducting nature (Cao et al, 2022;Wang et al, 2023). Moreover, the successful contribution of Co 3 O 4 in enhancing the photocatalytic activity of CeO 2 , g-C 3 N 4 , TiO 2 , Bi 2 O 3 and Fe 2 O 3 while generating photoexcitons' separation is well established (Ranjith et al, 2019;Niu et al, 2022;Reena et al, 2022).…”

“…Secondly, the successful removal of 15 ppm imidacloprid and imidacloprid containing commercially applied insecticide (Greeda) in the agriculture field under the exposure of natural sunlight. The reason for the utilization of Co 3 O 4 to modify n-type MoO 3 is due to its light absorption capacity, narrow band gap, good charge transportability and p-type semiconducting nature ( Cao et al, 2022 ; Wang et al, 2023 ). Moreover, the successful contribution of Co 3 O 4 in enhancing the photocatalytic activity of CeO 2 , g-C 3 N 4 , TiO 2 , Bi 2 O 3 and Fe 2 O 3 while generating photo-excitons’ separation is well established ( Ranjith et al, 2019 ; Niu et al, 2022 ; Reena et al, 2022 ).…”