利用工业废弃物制备了磁性纳米材料,并对材料进行了表征,并利用二苯碳酰二肼分光光度法,研究了磁性纳米材料对重金属铬吸附特性,获得了最佳吸附条件,为解决水体重金属污染提供了理论基础。 The magnetic nanomaterials were prepared by industrial wastes, and the materials were characterized. By using diphenylcarbazide spectrophotometry, the adsorption properties of magnetic nanomaterials on chromium in heavy metals were studied and the optimum adsorption conditions were obtained. Heavy metal pollution provides the theoretical basis.