Study on persulfate activated by Ce-modified tea waste biochar to degrade tetracycline

Zinc and sulfur functionalized biochar as a peroxydisulfate activator via deferred ultraviolet irradiation for tetracycline removal

“…In addition, previous studies had also shown that carbon-based materials have abundant functional groups, defect structures, and porous structures, which were important active sites for PDS activation. 65 Combined with the characterization analysis, it was found that the doping of Zn and S in this study made SC-Zn have ultra-high specific surface area and total pore volume, abundant oxygen-containing functional groups, and induce the formation of more amorphous carbon, defect sites and irregular layered stacked loose structures, which are conducive to electron transfer and provide more active sites. From the O 1s of XPS spectra (Fig.…”

Utilizing Self‐Floating Cu3BiS3 Polydopamine Polyurethane Sponges for Enhanced Water Purification: Harnessing the free radical and non‐radical in persulfate system

“…[20] In addition, the redox reaction of Cu + /Cu 2 + in Cu 3 BiS 3 triggers the formation of sulfate in the persulfate system. [21] In fact, the introduction of Cu 3 BiS 3 during activation plays a rather important role in the production of reactive oxygen species (ROS). [22] In this work, we constructed a self-floating photothermal heating device by loading Cu 3 BiS 3 onto a polyurethane sponge with polydopamine.…”