Using waste to treat waste: facile synthesis of hollow carbon nanospheres from lignin for water decontamination

Abstract

Herein, a new type of hollow carbon nanospheres (HCNs) is designed and synthesized by pyrolysis of biomass dealkali lignin, as an efficient nanocatalyst for the elimination of antibiotics in complex water matrices.

Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO3 Activation

“…Liu et al also reported spatial confinement of Co 3 O 4 nanoparticles into carbon nanotubes for degradation of bisphenol A via a dominated nonradical pathway . As part of our group’s recent studies on nanoconfined heterogeneous catalytic systems for water decontamination, − in this work, we reported confinement of Co nanoparticles in N-doped carbon nanorods (Co-NCNRs), by encapsulating Co nanoparticles into N-doped carbon nanorods, in activating for antibiotic degradation. First, Co-NCNRs were pyrolyzed from pullulan, dopamine hydrochloride, and Co­(NO 3 ) 2 at 550 °C in air for 3 h. Then, the nanostructure and nanomorphology of Co-NCNRs were fully investigated by various physical characterizations.…”

Revealing the primary role of the V4+/V5+ cycle in InVO4 catalysts for promoting the photo-Fenton reaction

“…44) to produce ·OH (ref. 45–47) (eqn (3)). Meanwhile, visible-light irradiation promoted the reaction of H 2 O 2 with the ·OH radical to yield ·O 2 − (eqn (4)).…”