Efficient peroxymonosulfate activation by CuO-Fe2O3/MXene composite for atrazine degradation: Performance, coexisting matter influence and mechanism

Manganese Oxides with Different Morphologies In Situ Anchored onto Ti3C2Tx Nanosheets: Highly Effective Decontamination toward Sulfur Mustard Simulants

“…In addition, the in situ formation of MnO 2 inevitably introduced defects in Ti 3 C 2 , weakening the (002) peak further. 33 At the same time, the strong diffraction peak of the composite was labeled with symbols that matched with the characteristic diffraction peaks of MnO 2 -1 and MnO 2 -2, proving the successful preparation of the composites. Figure 3d presents the N 2 adsorption−desorption isotherms and pore size distributions (illustration) of MnO 2 , d-Ti 3 C 2 T x , and MnO 2 /Ti 3 C 2 .…”

“…15,22−24 Although MO/MXenes composites have not yet been employed for CWAs degradation, they hold great promise as degradants and adsorbents for various organic pollutants, 25−28 antibiotics, 29−31 and pesticides. 32 Xu et al 33 In this study, MnO 2 /Ti 3 C 2 composites were synthesized via a facile hydrothermal method to incorporate various morphologies and crystal structures of MnO 2 onto Ti 3 C 2 -MXene nanosheets for the degradation of 2-CEES. MXene served as a substrate for loading MnO 2 nanoparticles, preventing their agglomeration and enabling their random distribution within the nanosheet layer.…”

“…However, the high surface of MO nanoparticles facilitates their aggregation into large particles, resulting in reduced active sites and diminished degradation property toward CWAs. , To address these challenges, extensive research has been conducted on nanocomposites comprising dispersed MO nanoparticles on suitable substrates such as layered or porous materials. − Transition metal carbides, nitrides, and carbon nitride compounds (MXenes) possess interlayer structures with abundant functional −OH and −O groups as well as surface-active functional groups that can be used for graft modification and controlled surface chemical properties, − thereby exhibiting excellent adsorption capacity and catalytic activity. − Utilizing MXene as a substrate for loading transition MOs can prevent the stacking of MXene nanosheets while overcoming the tendency of MOs to expand and agglomerate, thus providing ample exposed active sites. ,− Although MO/MXenes composites have not yet been employed for CWAs degradation, they hold great promise as degradants and adsorbents for various organic pollutants, − antibiotics, − and pesticides . Xu et al . demonstrated the preparation of CuO-Fe 2 O 3 /MXene through rapid microwave hydrothermal method which enhanced peroxonosulfate (PMS) activation efficiency and atrazine (ATZ) degradation.…”

CuFeS2/MXene-Modified Polyvinylidene Fluoride Membrane for Antibiotics Removal through Peroxymonosulfate Activation

“…HCO3 -may react with SO4 •− and HO • to form active substances with a lower oxidation capacity (Equations ( 9) and ( 10)) [15,40], which weakenes the degradation of MOX. Free radicals were more likely to attach to HA than pollutants and then react with functional groups in HA [41]. HA preempted the active sites on the catalyst surface through strong π-π stacking [42], so the interaction between CuFeS2/MXene and PMS could be blocked.…”

Eco-Friendly CuO/Fe3O4 Nanocomposite synthesis, characterization, and cytotoxicity study

“…The previous year's survey revealed that generally novel nonmaterial exhibited large surface area and has wide range of application in different fields, Ngoc and Vu (2022) have fabricated CuO.Fe 3 O 4 /silica composite using rice husk and their role to increase the Fenton-like catalytic degradation of tartrazine in proper pH range [ 26 ]. Xu et al (2022) reported CuO–Fe 2 O 3 .MXene composite and use for atrazine degradation mechanism, performance and coexisting matter influence [ 27 ]. As per literature survey, numerous research articles have been reported in biosynthesis of different CuO/Fe 2 O 3 , Cu/reduced graphene oxide/Fe 2 O 3 , and magnetic chitosan-copper nanocomposite from different species [ [28] , [29] , [30] , [31] , [32] , [33] ], also seen their action on thermal decomposition of ammonium perchlorate [ 34 ], carbon nanotubes (CNTs) [ [35] , [36] , [37] , [38] , [39] ].…”