Figures at a glance

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

FIGURE 1

Figure 1: Stepwise Hydroxylation of Benzoic Acid (Oturan and Pinson, 1995)

FIGURE 2

Figure 2: Hydroxyl Radical formation with various modified AC catalysts in the presence of 10 mM H2O2

FIGURE 3

Figure 3: 1-hr single-pot batch BZA removal and OH radical generation for (A) untreated AC and acidically-oxidized ACox, (B) MnO2 modified AC-Mn5 and ACox-Mn5 catalysts, (C) iron oxychloride modified ACox-Eth-FeOCl catalyst, and (D) ACox and ACox modification adsorption profiles

FIGURE 4

Figure 4: SEM images and SEM-EDS maps of GAC-Mn5 particles. Panel a is an overlay of an SEM image and the individual carbon (b), manganese (c), and oxygen (d) elemental maps. The overlapping Mn and O regions indicate MnO2. Panels e and f are higher magnification SEM images showing MnO2 aggregates and primary particles. Scale bars on panels e and f are 1 micron

FIGURE 5

Figure 5: (A) AC-Mn5 synthesis variations on hydroxyl radical formation, (B) H2O2 concentration comparison on hydroxyl radical formation in the presence of AC-Mn5, (C) comparison of BZA removal with varying H2O2 concentrations, AC-Mn5 adsorption, and 10 mM H2O2 without AC-Mn5 catalyst, and (D) comparison of adsorption and increasing H2O2 concentrations on mass of BZA removed per mass AC-Mn5 catalyst

FIGURE 6

Figure 6: (A) Hydroxyl radical formation at varying pH values, (B) hydroxyl radical formation due to aging with 1M H2O2, and (C) pHpzc (point of zero charge) determination for AC-Mn5 catalyst