Dewatered municipal sludge was used as raw material to prepare activated carbon (SAC), and the SAC was modified by walnut shell and nano-titanium dioxide (MSAC). The results showed that the MSAC had a higher specific surface area (S_BET) (279.147 m²/g) and total pore volume (V_T) (0.324 cm³/g) than the SAC. Simultaneously, the functional groups such as C-O, C = O, and Ti-O-Ti on the surface of MSAC were enhanced due to modification. These physicochemical properties provided prerequisites for the diffusion and degradation of pollutants in MSAC. Furthermore, the MSAC was applied to adsorb amoxicillin (AMX) from aqueous solution, in batch experiments, the maximum removal rate (88.19%) was observed at an initial AMX concentration of 30 mg/L, MSAC dosage of 5.0 g/L, pH of 8, contact time of 180 min, and temperature of 25 °C. In addition, the adsorption process was well described by the Freundlich isotherm model and pseudo-second-order kinetic model, indicating that the adsorption of AMX onto MSAC was dominated by multilayer chemisorption. Also, the adsorption thermodynamics suggested that the adsorption process of AMX onto MSAC was endothermic, feasible and spontaneous.

以脱水的城市污泥为原料制备活性炭（SAC），并用核桃壳和纳米二氧化钛（MSAC）对SAC进行改性。结果表明，MSAC具有较高的比表面积（S _BET）（279.147 m ² / g）和总孔体积（V _T）（0.324 cm ^3）/ g）。同时，由于改性，增强了MSAC表面上的CO，C ＝ O和Ti-O-Ti等官能团。这些理化特性为MSAC中污染物的扩散和降解提供了前提条件。此外，采用MSAC吸附水溶液中的阿莫西林（AMX），在分批实验中，在初始AMX浓度为30 mg / L，MSAC剂量为5.0 g / L，pH为pH时，观察到最大去除率（88.19％）。 8，接触时间为180分钟，温度为25°C。此外，吸附过程由Freundlich等温模型和伪二级动力学模型很好地描述，表明AMX在MSAC上的吸附主要由多层化学吸附决定。也，