Photocatalytically-assisted oxidative adsorption of As(III) using sustainable multifunctional composite material – Cu2O doped anion exchanger

Adsorption performance and its mechanism of aqueous As(III) on polyporous calcined oyster shell‐supported Fe–Mn binary oxide

“…As shown in Figure 5c, the arsenic adsorbed by FMBO/OS was present in the form of As(V) and As(III). The result was consistent with the previously reported results, verified that redox reaction occurred in the adsorption process and As(III) was oxidized to As(V) by the adsorbent (Jacukowicz‐Sobala et al, 2022). The corresponding reaction equations are as follows: $$$$ 2\mathrm{Mn}{\mathrm{O}}_2+{\mathrm{H}}_3\mathrm{As}{\mathrm{O}}_3+{\mathrm{H}}_2\mathrm{O}\to 2\mathrm{Mn}\mathrm{OOH}+{\mathrm{H}}_2\mathrm{As}{\mathrm{O}}_4^{-}+{\mathrm{H}}^{+} $$$$ $$$$ 6\mathrm{MnOOH}+{\mathrm{H}}_3\mathrm{As}{\mathrm{O}}_3\to 2\mathrm{M}{\mathrm{n}}_3{\mathrm{O}}_4+{\mathrm{H}}_2\mathrm{As}{\mathrm{O}}_4^{-}+{\mathrm{H}}^{+}+3{\mathrm{H}}_2\mathrm{O} $$$$ $$$$ 2\mathrm{MnO}\mathrm{OH}+{\mathrm{H}}_3\mathrm{As}{\mathrm{O}}_3\to 2\mathrm{MnO}+{\mathrm{H}}_2\mathrm{As}{\mathrm{O}}_4^{-}+{\mathrm{H}}^{+}+{\mathrm{H}}_2\mathrm{O} $$$$ However, compared with FMBO/OS, the characteristic peak of divalent manganese oxide MnO did not appear in FMBO after As(III) adsorption.…”

“…As shown in Figure 5c, the arsenic adsorbed by FMBO/OS was present in the form of As(V) and As(III). The result was consistent with the previously reported results, verified that redox reaction occurred in the adsorption process and As(III) was oxidized to As(V) by the adsorbent (Jacukowicz-Sobala et al, 2022). The corresponding reaction equations are as follows:…”

New Insights into Cu/Cu2O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants

“…While, the presence of a peak at 1592 cm –1 refers to O–H bonds originated from absorbed water . The bands at 1010 and 1130 cm –1 correspond to CuO and Cu 2 O, respectively …”

Post-Global Pandemic Challenges and improvements in advanced detection and removal processes of toxic pollutants: Editorial

“…( Arias Borrego et al, 2022 , Jacukowicz-Sobala et al, 2022 , Krawczyk-Barsch et al, 2022 , Parra-Martínez et al, 2022 , Zeng et al, 2022 )…”

“…This Special issue shows studies related to copper ( Belbachir et al, 2022 , Stala et al, 2022 ), mercury ( Windisch et al, 2022 ), arsenic ( Jakukowicz-Sobala et al, 2022 ; Zaric et al, 2022 ; Carneiro et al, 2022 ), selenium (Parra-Martinez et al, 2022; Arias - Borrego et al, 2022 ), and other heavy and radioactive metals ( Irfan et al, 2022 ; Zheng et al, 2022; Germande et al, 2022 ; Krawczy-Barsch et al, 2022) detection and speciation, organic matter and inorganic ions removal ( Pidoux et al,. 2022 ), quantitative analysis of metabolites ( Wang et al, 2022 ), estrogens ( Zdarta et al, 2022 ), uses and detection of nanomaterials ( Kuo et al, 2022 , Saravanakumar et al, 2022 ), nanoplastics ( Arini et al, 2022 ), HCH derivatives ( Alvarez et al, 2022 ), antibiotics ( Zaheer Afzal et al, 2022 ), pesticides ( Jevremovic et al, 2022 ), photodegration processes ( Kumar et al, 2022 ), cell internalization drugs ( Ahmadi et al, 2022 ), dyes and pigments degradation ( Jankowska et al, 2022 ), and bacteria studies ( Arruda et al, 2022 , Xiang et al, 2022 ) in a very long different group of samples, including fresh environmental water, seawater, wastewater, different soils, food, marine organism, bacteria, mice’s, etc.…”