The textile industry spreads globally with the challenges of its wastewater treatment, especially dyes, which are difficult to degrade. To improve coagulation-flocculation process in dye wastewater treatment, an intercalation process was employed to prepare a new efficient coagulant of lithium borohydride-iron oxychloride (LiBH₄_FeOCl) in this study. The layered crystal pristine iron oxychloride (FeOCl) material was prepared by chemical gas phase migration. LiBH₄ was introduced into the layers of two dimensional (2D) FeOCl nanosheets by a simple method of liquid phase insertion. The samples were characterized by a field emitting scanning electron microscopy (SEM), a rotating anode X-ray powder diffractometer (XRD), etc. The cationic dye was employed as the simulated pollutant. A coagulation and decolorization experimental device was built to study the coagulation performance of the new coagulant LiBH₄_FeOCl. It is found that the intercalation modified LiBH₄_FeOCl exhibits the characteristics of crystal structure, and the layered structure of FeOCl is preserved. LiBH₄_FeOCl, as an insoluble inorganic solid coagulant, performs well for dye pollutants of methyl red, basic yellow 1, methylene blue, rhodamine B, ethyl violet and Janus green B. The reaction rate is significantly 68% higher than the current commercial coagulants of Al₂(SO₄)₃. The mechanism analysis reveals that LiBH₄_FeOCl breaks and disperses rapidly in the water environment. Its negatively charged material particles can be electrostatically adsorbed with dye pollutant molecules through electrostatic action. The above collaborative actions of breaking, dispersion and electrostatic adsorption are the main coagulation mechanisms of LiBH₄_FeOCl. The solid inorganic coagulant of LiBH₄_FeOCl provides a competitive alternative for traditional inorganic salts and organic coagulants.

纺织行业在全球范围内面临着废水处理的挑战，尤其是难以降解的染料。为了改进染料废水处理中的混凝-絮凝过程，本研究采用插层工艺制备了一种新型高效混凝剂硼氢化锂-三氯氧化铁（LiBH ₄ _FeOCl）。通过化学气相迁移制备层状晶体原始氧氯化铁（FeOCl）材料。通过简单的液相插入方法将LiBH ₄引入二维 (2D) FeOCl 纳米片层。通过场发射扫描电子显微镜（SEM）、旋转阳极X射线粉末衍射仪（XRD）等对样品进行表征. 采用阳离子染料作为模拟污染物。搭建了混凝脱色实验装置，研究了新型混凝剂LiBH ₄ _FeOCl的混凝性能。发现插层改性的LiBH ₄ _FeOCl表现出晶体结构特征，保留了FeOCl的层状结构。LiBH ₄ _FeOCl作为一种不溶性无机固体混凝剂，对甲基红、碱性黄1、亚甲蓝、罗丹明B、乙基紫和Janus绿B等染料污染物表现良好，反应率比目前市售混凝剂显着提高68% Al ₂ (SO ₄ ) ₃。机理分析表明，LiBH ₄_FeOCl 在水环境中快速分解和分散。其带负电荷的材料颗粒可以通过静电作用与染料污染物分子静电吸附。上述破碎、分散和静电吸附的协同作用是LiBH ₄ _FeOCl的主要凝聚机制。LiBH ₄ _FeOCl固体无机混凝剂为传统无机盐和有机混凝剂提供了一种有竞争力的替代品。