▎ 摘　　要

NOVELTY - Preparation of ferric oxychloride graphene quantum dot composite transition metal catalyst comprises taking urea and citric acid, adding into water to dissolve, hydrothermal reacting, cooling down, dialyzing, and drying; and mixing with iron salt, sintering, and cooling. USE - The method is used for preparing ferric oxychloride graphene quantum dot composite transition metal catalyst for catalyzing peroxymonosulfate to degrade water organic pollutants of dyes, endocrine disruptors, drugs or pesticides (all claimed). ADVANTAGE - The catalyst has strong catalytic capability, high degradation rate, and simple preparation and is capable of catalyzing peroxymonosulfate oxidation to remove various toxic and harmful organic pollutant including dye, medicine and endocrine disrupting chemicals. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) ferric oxychloride graphene quantum dot composite transition metal catalyst; and (2) application of the catalyst comprising adding catalyst and peroxymonosulfate into the water to be treated containing organic pollutants. DESCRIPTION OF DRAWING(S) - The drawing shows an XRD crystal structure diagram of the compound transition metal catalyst of oxygen-based iron chloride graphene quantum dot prepared in Example 1. Composite transition metal catalyst (10) Invention (20)