The use of lanthanum-anchored zinc oxide distorted hexagon (La@ZnO DH) nanoclusters as an active material for the photodegradation of rhodamine B (Rh–B) dye via hydrogen bonding, electrostatic, and π-π interactions is examined herein. The active photocatalyst is derived from porous zeolite imidazole frameworks (ZIF-8) via a combined ultrasonication and calcination process. The distorted hexagon nanocluster morphology with controlled surface area is shown to provide excellent catalytic activity, chemical stability and demarcated pore volume. In addition, the low bandgap (3.57 eV) of La@ZnO DH is shown to expand the degradation of Rh–B under irradiation of UV light as compared to the pristine ZIF-8-derived ZnO photocatalyst due to inhibited recombination of electrons and holes. The outstanding physicochemical stability and enhanced performance of La@ZnO DH could be ascribed to the synergistic interaction among La3+ particles and the ZnO nanoclusters and provide a route for their utilization as a promising catalyst for the detoxification of Rh–B.

本文研究了镧锚定的氧化锌扭曲六边形（La @ ZnO DH）纳米团簇作为活性材料通过氢键，静电和π-π相互作用光降解罗丹明B（Rh-B）染料的活性。活性光催化剂通过超声和​​煅烧工艺结合而得自多孔沸石咪唑骨架（ZIF-8）。扭曲的六角形纳米簇形貌具有受控的表面积，显示出优异的催化活性，化学稳定性和标定的孔体积。此外，与原始ZIF-8衍生的ZnO光催化剂相比，La @ ZnO DH的低带隙（3.57 eV）可以扩大Rh–B在紫外线照射下的降解，这是因为电子和空穴的重组受到抑制。