Zeolite imidazolate frameworks (ZIFs) exhibit great potential for organic pollutant removal from water by adsorption. However, it is difficult to remove nanosized ZIFs after adsorption. Here, well-dispersed ZIF-8 is successfully grown onto porous carbons by an in situ growth method. The resultant ZIF-8/Carbon shows excellent adsorption removal efficiency for malachite green (MG) with a maximum adsorption capacity of 3056 mg/g at 30 °C. The adsorption kinetics and isotherm data fit well with the pseudo-second-order kinetic model and Langmuir isotherm model, respectively. The influences of temperature, solution pH and salts are also investigated. In addition, the adsorbent can be separated easily by filtration because of its large particle size. Moreover, regeneration experiments reveal that the used adsorbent still exhibits excellent applicability after at least four recycling runs. These features enable ZIF-8/Carbon to be a promising adsorbent for the removal of MG from water.

咪唑沸石沸石（ZIF）具有巨大的潜力，可以通过吸附从水中去除有机污染物。但是，吸附后难以除去纳米级的ZIF。在这里，通过原位生长方法将分散良好的ZIF-8成功地生长在多孔碳上。所得的ZIF-8 /碳对孔雀石绿（MG）表现出优异的吸附去除效率，在30°C下的最大吸附容量为3056 mg / g。吸附动力学和等温线数据分别与拟二级动力学模型和Langmuir等温线模型拟合得很好。还研究了温度，溶液pH和盐的影响。另外，由于吸附剂的粒径大，因此可以通过过滤容易地分离。此外，再生实验表明，在至少四次循环运行后，所用的吸附剂仍具有出色的适用性。这些特性使ZIF-8 / Carbon成为从水中去除MG的有前途的吸附剂。