Binary hydroxide nanotube with composite structure and preparation method thereof

The invention discloses a binary hydroxide nanotube with a composite structure and a preparation method thereof, the binary hydroxide nanotube is a nanotube compounded by cadmium hydroxide and magnesium hydroxide, the inner diameter of the nanotube is 4-10 nm, the outer diameter of the nanotube is 20-50 nm, and the length of the nanotube is 200-5 [mu] m. According to the preparation method, a magnesium hydroxide nanotube is used as a template, and the binary hydroxide nanotube compounded by cadmium hydroxide and magnesium hydroxide is mildly prepared by adopting an ion exchange method. The method is simple in preparation and easy to amplify, and has industrial application prospects. 本发明公开了一种具有复合结构的二元氢氧化物纳米管及其制备方法，二元氢氧化物纳米管为氢氧化镉和氢氧化镁复合的纳米管，纳米管内径在4-10nm之间，外径为20-50nm,管长在200nm-5μm之间。制备方法使用氢氧化镁纳米管为模板，采用离子交换的方法温和制备了氢氧化镉和氢氧化镁复合的二元氢氧化物纳米管。本方法制备简单，容易放大，具有工业化应用前景。