Catalyst based on wheat straw biomass as well as preparation method and application of catalyst

The invention belongs to the technical field of sewage treatment, and discloses a catalyst based on wheat straw biomass and a preparation method and application thereof.The preparation method comprises the following steps that dried and smashed wheat straw is roasted under the protective atmosphere, and a biochar precursor is prepared; and dispersing the biochar precursor in an L-ascorbic acid solution, drying by distillation, and then carrying out secondary roasting treatment in a protective atmosphere to obtain the catalyst. The catalyst based on wheat straw biomass provided by the invention is combined with persulfate for use, so that organic pollutants in water can be quickly removed, the pH response range is wide, and the catalyst has a very good degradation and removal effect on various organic pollutants. 本发明属于污水处理技术领域，公开了一种基于小麦秸秆生物质的催化剂及其制备方法和应用，该制备方法包括以下步骤：将干燥、粉碎的小麦秸秆在保护气氛下进行焙烧处理，制得生物炭前驱体；将所述生物炭前驱体分散在L-抗坏血酸溶液中，蒸干后再次在保护气氛下进行二次焙烧处理，制得所述催化剂。本发明提供的基于小麦秸秆生物质的催化剂与过硫酸盐联用，能快速去除水中的有机污染物，pH响应范围宽，对多种有机污染物都具有很好的