Heterogeneous activation of peroxymonosulfate for bisphenol AF degradation with BiOI_0.5Cl_0.5

Abstract

This study represents the first investigation on the application of peroxymonosulfate (PMS) for the degradation of bisphenol AF (BPAF) using halogen bismuth oxide composites (BiOI0.5Cl0.5).

Activating peroxymonosulfate by halogenated and methylated quinones: performance and mechanism

“…Advanced oxidation processes (AOPs) for the remediation of contaminated soils, groundwater, and sediments have received considerable attention in recent years. [1][2][3] These processes are based mostly on activation of hydrogen peroxide (H 2 O 2 ), 4 titanium dioxide (TiO 2 ), 5 persulfate (PDS) 6,7 and peroxymonosulfate (PMS) [8][9][10] to generate oxidizing species such as sulfate radical (SO 4 c À ) (2.5-3.1 V) and hydroxyl radicals (cOH) (1.9-2.7 V), 11 which are highly reactive oxidants toward organic compounds. Among AOPs, PMS has emerged as a popular technique in environmental remediation.…”

Sunlight-Active BiOI Photocatalyst as an Efficient Adsorbent for the Removal of Organic Dyes and Antibiotics from Aqueous Solutions

“…The XRD pattern of the prepared BiOI photocatalyst ( Figure 1 a) exhibited the peaks of a tetragonal structure at a 2θ of 28.96°, 31.73°, 45.43°, and 54.91°, corresponding to the reflection from the (102), (110), (200), and (212) lattice planes, respectively (JCPDS card no. 73-2060) [ 25 ]. No impurity peaks were observed.…”

“…The vibrational spectrum of the BiOI ( Figure 1 b) provided vibrational bands at 519 cm −1 and 1311 cm −1 which were attributed to the Bi-O stretching mode and stretching vibrational mode of Bi-I bond, respectively [ 25 ]. The peak found at 1627 cm −1 was due to the flexural vibration of O-H in the adsorbed water [ 25 ]. In addition, the vibration band at 3465 cm −1 was assigned to the stretching vibration of water as well.…”

“…BiOI ( E g of 1.5–1.7 eV), which shows a high photocatalytic performance, has received great attention. This is due to its advantages of non-toxicity, great stability, and high sunlight-active photocatalytic performance [ 25 ]. The synthesis of BiOI by various techniques has been reported [ 26 , 27 ].…”

Ca(OH)2-mediated activation of peroxymonosulfate for the degradation of bisphenol S

“…In general, PMS can be activated by heat, ultrasonic, and transition metal catalysis. [7][8][9] However, these methods were limited to be widely applied due to the high energy-input or metal leaching problems. Therefore, environmentally friendly approaches for the effective removal of organic pollutants are highly desirable.…”