1,4-benzenedicarboxylic acid as precursors, carrying out the carbonization under H 2
atmosphere. This electrode was used as the cathode of a three-electrode undivided
cell with a Pt anode, yielding 97% of substrate decay and 91% TOC abatement after
Fig. 11.3 SEM images of raw graphite-felt cathode modified with (a) graphene (Gr) and (b)
N-doped graphene (N-Gr). (c) Schematic illustration of the in situ metal-free reactions occurring in
the above cathodes. (d) Percentage of phenol removal during the treatment of 100 mL of 50 mg/L
phenol in 0.05 M Na 2 SO 4 using a cell with a DSA
® anode and each of the above cathodes at
E cath ¼ À0.90 V/SCE. The EF trials with Gr were made using 0.40 mM Fe
2+ . No Fe
2+ was added
using N-Gr. (Adapted from Yang et al. (2018b), Copyright 2018, with permission from Elsevier)
11 The Use of Nanomaterials in Electro-Fenton and Photoelectro-Fenton Processes
265
atmosphere. This electrode was used as the cathode of a three-electrode undivided
cell with a Pt anode, yielding 97% of substrate decay and 91% TOC abatement after
Fig. 11.3 SEM images of raw graphite-felt cathode modified with (a) graphene (Gr) and (b)
N-doped graphene (N-Gr). (c) Schematic illustration of the in situ metal-free reactions occurring in
the above cathodes. (d) Percentage of phenol removal during the treatment of 100 mL of 50 mg/L
phenol in 0.05 M Na 2 SO 4 using a cell with a DSA
® anode and each of the above cathodes at
E cath ¼ À0.90 V/SCE. The EF trials with Gr were made using 0.40 mM Fe
2+ . No Fe
2+ was added
using N-Gr. (Adapted from Yang et al. (2018b), Copyright 2018, with permission from Elsevier)
11 The Use of Nanomaterials in Electro-Fenton and Photoelectro-Fenton Processes
265