Natural organic matter (NOM) has rich halogenation reactive sites, therefore acts as the main precursor of disinfection byproducts (DBPs) in the chlorine disinfection process during drinking water treatment. In this research, high-quality metal-organic framework HKUST-1 is rapidly synthesized by a solvothermal method, and we are the first to report adsorption of aqueous humic acid (HA), representing NOM, and its adsorption behavior, influencing factors, and recycling capability. The crystalline HKUST-1 possessed a microporous framework with a high 1385 m²/g specific surface area, and three-dimensional structure as characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM). 99% removal of 5 mg/L HA was observed at pH 5.8, room temperature, and 0.6 g/L HKUST-1. The maximum capacity was 14.42 mg HA/g HKUST-1 at room temperature. The Langmuir adsorption isotherm, quasi-second-order kinetic model, and thermodynamic parameters accurately describe the spontaneous and disorderly endothermic adsorption of HA by HKUST-1. The desorption regeneration process was accomplished by washing HKUST-1 with NaOH and calcination; it showed that HKUST-1 was viable in three regeneration cycles. The mechanism of HA adsorption by HKUST-1 is electrostatic and synergistic interaction between π-π bonding, and hydrogen bonding. HKUST-1 is a potential treatment strategy to remove NOM.

天然有机物 (NOM) 具有丰富的卤化反应位点，因此是饮用水处理过程中氯消毒过程中消毒副产物 (DBP) 的主要前体。本研究采用溶剂热法快速合成高质量的金属有机骨架 HKUST-1，并首次报道了代表 NOM 的水性腐植酸 (HA) 的吸附及其吸附行为、影响因素和回收能力。结晶的 HKUST-1 具有微孔框架，高 1385 m ²/g 比表面积，以及通过傅里叶变换红外光谱 (FTIR)、X 射线衍射 (XRD)、扫描电子显微镜 (SEM) 表征的三维结构。在 pH 5.8、室温和 0.6 g/L HKUST-1 下观察到 99% 的 5 mg/L HA 去除。室温下最大容量为 14.42 mg HA/g HKUST-1。Langmuir吸附等温线、准二级动力学模型和热力学参数准确地描述了HKUST-1对HA的自发和无序吸热吸附。脱附再生过程通过用NaOH洗涤HKUST-1并煅烧完成；它表明 HKUST-1 在三个再生周期中是可行的。HKUST-1吸附HA的机理是π-π键和氢键之间的静电和协同作用。