Sustainable activation of peroxymonosulfate by the Mo(IV) in MoS2 for the remediation of aromatic organic pollutants

MoS2-assisted Fe2+/peroxymonosulfate oxidation for the abatement of phenacetin: efficiency, mechanisms and toxicity evaluation

“… 20,22 It is generally believed that the unsaturated S atoms on the MoS 2 surface can capture protons to form H 2 S and meanwhile expose Mo 4+ , which could accelerate the Fe 3+ /Fe 2+ conversion ( eqn (4) ) and facilitate PMS conversion ( eqn (3) ), thus significantly improving the decomposition of PMS. 23 Fe 2+ + HSO 5 − → SO 4 ˙ − + Fe 3+ + ΟΗ − Fe 2+ + HSO 5 − →·OH + Fe 3+ + SO 4 2− Interface: Mo 4+ + HSO 5 − → SO 4 ˙ − + Mo 6+ + OH − Interface: Mo 4+ + 2Fe 3+ → Mo 6+ + 2Fe 2+ …”

Graphene Oxide-Supported Three-Dimensional Cobalt–Nickel Bimetallic Sponge-Mediated Peroxymonosulfate Activation for Phenol Degradation

“…In recent years, urbanization and industrialization have accelerated the discharge of harmful and toxic pollutants . Several pollutants (such as phenolic compounds), which are difficult to biodegrade due to their biological toxicity and high persistence, threaten the ecological balance and human health. , However, it is difficult for traditional wastewater treatment processes to remove phenolic pollutants completely .…”

Graphene-Based Photo-Fenton Catalysts for Pollutant Control

“…Although a small fraction of pollutants is present in aquatic environments, most of them bio-accumulate and resist traditional physical removal methods [1]. Consequently, innovative strategies, such as advanced oxidation processes (AOPs), have been introduced; the Fenton reaction, which was discovered in 1894, is one of the most studied strategies [2][3][4][5][6][7][8][9][10]. The main reactions stated below [Eqs.…”

“…(3)] and the production of •OH [Eq. (4)] [11]. In traditional photo-Fenton reactions, ferrous compounds, such as ferrous sulfate (FeSO 4 ), are added directly into aqueous catalytic systems to react with H 2 O 2 in ionic state [17].…”