Z-Scheme heterojunction Ag/NH2-MIL-125(Ti)/CdS with enhanced photocatalytic activity for ketoprofen degradation: Mechanism and intermediates

Metal–organic framework‐based heterojunction photocatalysts for organic pollutant degradation: design, construction, and performances

“…Furthermore, in the Z-scheme Au-TiO 2 @NH 2 -UiO-66 heterojunction, ultrafine Au NPs act as electron mediators and can significantly accelerate photogenerated electron transfer. A similar effect was observed by Zheng et al, 122 who studied the photocatalytic activity of Ag/NH 2 -MIL-125(Ti)/CdS hybrids with Ag clusters as the an electron mediator. Even though the use of noble metals in Z-scheme heterojunctions improves the photocatalytic activity of materials, their main disadvantages are high cost and rare reserve, making large-scale commercial application difficult.…”

“…Despite the ternary composite exhibiting a high activity, the use of such complex ternary composites may not be appropriate due to the multi-stage and high production costs. Some more simple MOF-based Z-scheme heterojunctions containing metal oxides, 123,127,178 complex oxides (perovskites 124,[179][180][181] and spinel), 182 and chalcogenides 121,122,183 are not inferior in activity. As an example, tiny TiO 2 nanoparticle supported Au clusters were incorporated into NH 2 -UiO-66 to create the ASS Z-scheme photocatalyst for promoting the photocatalytic degradation of ethyl acetate in the gas phase.…”

“…For this purpose, the following techniques are mainly used to obtain MOF‐based composites: (i) in situ hydrothermal growth of crystals of the second component on the surface of a MOF, and (ii) in situ hydrothermal growth of MOF crystals on the surface of the second component. The first method was used for the preparation of NH 2 ‐MIL‐101(Fe)/BiVO 4 , 120 MIL‐88A(Fe)/MoS 2 , 121 Ag/NH 2 ‐MIL‐125(Ti)/CdS, 122 and UiO‐66/BiFeO 3 114 heterostructures. The heterojunction photocatalysts MIL‐88A(Fe)/Bi 2 WO 6 , 54 TiO 2 @NH 2 ‐UiO‐66, 123 Bi 2 WO 6 /NH 2 ‐UiO‐66, 124 Bi 2 O 3 @UiO‐66, 125 and g‐C 3 N 4 /NH 2 ‐MIL‐101(Fe) 126 were prepared using the second approach.…”

Simultaneously enhancing the photocatalytic and photothermal effect of NH2-MIL-125-GO-Pt ternary heterojunction for rapid therapy of bacteria-infected wounds

“…2 F) [ 28 ]. The N peak of NH 2 -MIL-125-GO shifted to the low binding energy direction, which indicated that electron transfer occurred between GO and NH 2 -MIL-125 [ 29 ]. Meanwhile, the signal peak of –NH 2 in the NH 2 -MIL-125-GO-Pt further weakened, the signal peak of –NH– + almost disappeared, and the peak of N further moved towards the direction of low binding energy.…”

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

“…Therefore, the incomplete mineralization of PNT may lead to the formation of degradation products with higher toxicity, particularly hydroxylated products or products containing amino group, which should be carefully considered in practical application. 55 …”