Tellurium-manganese-cadmium nano-powder and preparation method thereof

The invention relates to a tellurium-manganese-cadmium nano-powder and a preparation method thereof. The nano-powder is prepared by taking a cadmium salt, a manganese salt and a tellurite as reaction raw materials, adding sodium citrate and thiohydracrylic acid as stabilizers and a hydroboron as a reducing agent through a hydrothermal reaction. The molar ratio of Cd to Mn to Te in the cadmium salt, the manganese salt and the tellurite is 1: (0.1-0.5): (1.1-1.5); the molar ratio of the cadmium salt to the sodium citrate to the thiohydracrylic acid is 1: (0.1-1): (1-5). The process method is simple to operate, does not need a protective atmosphere, is controllable in powder size and low in reaction temperature, and the prepared product is of a pure-phase sphalerite structure. The powder can be used in the fields of radiation detectors, solar cell raw materials, photocatalysis and the like. 本发明涉及一种碲锰镉纳米粉体及其制备方法，包括：镉盐、锰盐和亚碲酸盐为反应原料，添加柠檬酸钠与巯基丙酸作为稳定剂，硼氢化物为还原剂，利用水热反应制备；镉盐、锰盐和亚碲酸盐中Cd、Mn和Te的摩尔比为：1:(0.1～0.5):(1.1～1.5)；镉