Preparation method of nanometer cadmium sulfide-titanium dioxide compound

The invention relates to a preparation method of a nanometer cadmium sulfide-titanium dioxide compound photocatalyst. Titanium trichloride is used as raw materials to prepare titanium dioxide nanometer rods through hydrothermal method reaction; then, the titanium dioxide nanometer rods are used for reacting with cadmium nitrate and sodium sulfide to prepare a nanometer cadmium sulfide-titanium dioxide compound. The nanometer cadmium sulfide-titanium dioxide compound provided by the invention has very good photocatalysis performance; under the conditions of normal temperature, normal pressure and light illumination, organic contaminants in waste water, particularly organic contaminants such as pesticides can be fast degraded into pollution-free substances such as H2O and CO2. In addition, the prepared nanometer cadmium sulfide-titanium dioxide compound can be repeatedly utilized for many times; the durable photocatalysis activity is realized. 本发明涉及种纳米硫化镉-二氧化钛复合物光催化剂的制备方法，使用三氯化钛为原料，通过水热法反应制得二氧化钛纳米棒，再使用二氧化钛纳米棒与硝