Nanometal organic framework wall material and preparation method thereof

The invention discloses a nanometal organic framework wall material with an environment-friendly purification function and a preparation method thereof. The material itself is environment-friendly andpollution-free, so that no toxic effect on a human body is caused; the material contains a modified metal organic framework compound, zeolite and diatomite, so that toxic and harmful substances in air can be effectively absorbed and the air can be purified; the material contains nanometer zinc oxide and nanosilver, so that formaldehyde gas adsorbed by the modified metal organic framework compound, the zeolite and the diatomite can be decomposed into water and carbon dioxide in natural light, and the problem of saturated formaldehyde absorption of the wall material can be effectively solved; in addition, the material contains nanometer tourmaline powder, is a natural mineral material and has the function of releasing negative oxygen ions, so that the negative oxygen ion content of an indoor environment can be incr