实验室实验说明应关注用腐植酸功能化的超顺磁纳米粒子对污水进行处理。实验由一群高中生进行,内容包括纳米粒子的合成和微观表征,与水中典型的金属离子污染物的相互作用。为帮助学生理解实验,使用竞争性试剂,例如氨来恢复和回收利用纳米粒子,让学生们对配位化学概念进行探讨,凸显腐植酸对金属离子的亲和力。 Laboratory experiments show that humic acid functionalized superparamagnetic nanoparticles should be used to treat wastewater. The experiment was conducted by a group of high school students, which included the synthesis and microscopic characterization of nanoparticles and the interaction with typical metal ion contaminants in water. To help students understand the experiment, the use of competitive reagents such as ammonia to recover and recycle the nanoparticles allows the students to explore the concept of coordination chemistry, highlighting the affinity of humic acid for metal ions.