Assembling CoAl-layered metal oxide into the gravity-driven catalytic membrane for Fenton-like catalytic degradation of pharmaceuticals and personal care products

Cobalt-ferrite functionalized graphitic carbon nitride (CoFe2O4@g-C3N4) nanoconfined catalytic membranes for efficient water purification: performance and mechanism

“…However, the DMPO–SO 4 ˙ − adduct signal was not detected, possibly because of the masking effect of the strong signals from DMPOX and DMPO–˙OH adducts. 20,39…”

“…However, the DMPO-SO 4 c − adduct signal was not detected, possibly because of the masking effect of the strong signals from DMPOX and DMPO-cOH adducts. 20,39 Furthermore, the various ROS contributions in the CoFe 2 -O 4 @g-C 3 N 4 membrane/PMS system were determined by the experiments using different quenching agents. L-HIS was utilized as the quenching agent for 1 O 2 , and adding L-HIS to the reaction system decreased the ranitidine removal efficiency by 51.3% (Fig.…”

“…[12][13][14] In addition, membrane-based nanoconned catalysis limits the catalytic reaction to the nanoscale space, reducing the mass transfer distance to achieve efficient and rapid degradation of pollutants. 11,15,16 Various methods could be employed to construct nanoconned catalytic membranes, including (1) layered assembly of catalytic twodimensional (2D) nanosheets on the substrate membrane, [17][18][19][20] (2) in situ growth of nanocatalysts within the substrate membrane, 21,22 (3) layered assembly of 2D nanosheet loaded nanocatalysts on the substrate membrane. 14,23 An excellent nanoconned catalytic membrane should have abundant nanoscale spaces and active sites exposed in the nanoscale spaces, which is particularly important for nanoconned catalytic reactions.…”

In situ growth of CuO on porous geopolymer spheres as green catalysts for enhanced peroxymonosulfate‐activated degradation of Orange I

“…By adding HCO 3 − to the system, the degradation rate of OI by the GC‐0.01/PMS system decreased from 95.03% to 73.86%, and k decreased from 0.1143 to 0.0417 min −1 (Figure S6D). This might be due to the fact that HCO 3 − could act as a scavenger of SO 4 •− and •OH (Equations () and ()) 63 . Moreover, the addition of HCO 3 − led to an increase in solution pH and a decrease in the amount of HSO 5 − species with the higher oxidation potential 64 …”

“…•− and •OH (Equations ( 6) and ( 7)). 63 Moreover, the addition of HCO 3 − led to an increase in solution pH and a decrease in the amount of HSO 5 − species with the higher oxidation potential. 64 SO…”