Iron-nickel bimetallic organic frameworks (FeNi_X-BDC, H₂BDC: terephthalic acid) were developed as bifunctional materials for adsorption and photo-Fenton degradation of organic dyes with different charge properties. Significantly enhanced adsorption capacity of FeNi_1/15-BDC towards methylene blue (MB) and methyl orange (MO) was achieved, 5.3 and 2.6 times higher than that of pristine Fe-BDC, which was attributed to enlarged specific surface area and pore volume and the decreased surface charges induced by Ni doping. The adsorption kinetics demonstrated that chemisorption was dominant and intra-particle diffusion was the rate-controlling step. Two-stage degradation including slow induction stage and rapid oxidation stage fitted with pseudo-zero-order kinetics well. The increased rate constants (2.472 vs. 1.188 min⁻¹ for MB; 0.616 vs. 0.421 min⁻¹ for MO) in the induction stage as well as the superior removal capability by asynchronism relative to synchronism jointly corroborating the improved adsorption performance was favor for subsequent degradation. Notably, this heterogeneous system not only exhibited obvious advantages like wider pH working range (3–9), better stability and reusability of catalysts, but also achieved the dual objectives of in-situ decontamination and adsorbent regeneration. The coupling of adsorption and degradation along with synergism between photocatalysis and Fenton-like process are responsible for the reinforced removal of organic contaminants.

铁镍双金属有机骨架（FeNi _X -BDC，H ₂ BDC：对苯二甲酸）被开发为双功能材料，用于吸附和光芬顿降解具有不同电荷性质的有机染料。FeNi _1/15的吸附能力显着提高-达到亚甲基蓝（MB）和甲基橙（MO）的-BDC，分别是原始Fe-BDC的5.3和2.6倍，这归因于比表面积和孔体积的增加以及镍掺杂引起的表面电荷的减少。吸附动力学表明化学吸附是主要的，颗粒内扩散是速率控制的步骤。两阶段降解包括慢诱导阶段和快速氧化阶段，并具有拟零级动力学。增加的速率常数（MB的速率常数为2.472 vs.1.188 min ^-1 ; MB为0.616 vs.0.421 min ^-1对于MO）在诱导阶段，以及相对于同步而言，通过异步的优异去除能力共同证实了改进的吸附性能，对于随后的降解是有利的。值得注意的是，这种非均相系统不仅具有明显的优势，例如更宽的pH工作范围（3–9），更好的催化剂稳定性和可重复使用性，而且还实现了原位去污和吸附剂再生的双重目标。光催化和类似Fenton的过程之间的吸附和降解以及协同作用是增强有机污染物去除的原因。