The efficiency of a composite prepared from bentonite and ackee apple seed (CBAAS) to remove Congo red and malachite green from aqueous solutions was explored. The CBAAS was characterised using Scanning Electron Microscopy, Fourier Transform Infrared spectroscopy, X-ray diffraction, and porosimetry techniques. Batch adsorption method was used to assess the variations of pH of the medium, contact time, temperature and initial concentrations of Congo red and malachite green. Kinetic and equilibrium data were properly described by general order kinetic and Liu model, respectively. The maximum adsorption capacities obtained from the Liu model are 1439.9 mg g⁻¹ and 706.72 mg g⁻¹ for Congo red and malachite green, respectively. Adsorption of the two dyes was spontaneous and exothermic. Acetone was able to desorb the two dyes from the surface of CBAAS. The CBAAS could serve as an alternative adsorbent for treatment of contaminated water that contains Congo red and malachite green.

探索了由膨润土和阿基苹果种子（CBAAS）制备的复合材料从水溶液中去除刚果红和孔雀石绿的效率。使用扫描电子显微镜，傅立叶变换红外光谱，X射线衍射和孔隙率技术对CBAAS进行了表征。分批吸附法用于评估介质的pH值，接触时间，温度以及刚果红和孔雀石绿的初始浓度的变化。动力学和平衡数据分别通过一般顺序动力学和Liu模型正确描述。从Liu模型获得的最大吸附容量为1439.9 mg g ^-1和706.72 mg g ^-1分别为刚果红和孔雀石绿。两种染料的吸附是自发的并且放热的。丙酮能够从CBAAS表面解吸两种染料。CBAAS可以用作处理含有刚果红和孔雀石绿的污水的替代吸附剂。