The invention relates to a preparation method for cuprous
oxide micron / nano
crystal with controllable morphology, relating to the preparation method for the cuprous
oxide micron / nano
crystal. The invention mainly solves the technical problems of high cost and environmental
pollution in the preparation process of the micron / nano cuprous
oxide. The method comprises the following steps of: 1, dissolving
copper salt into
ultrapure water, pouring
lactic acid, continuously stirring, regulating a pH value, cooling to the temperature of 25 DEG C, keeping constant volume, measuring the pH value, and obtaining solution A; 2, moving the solution A to a
hydrothermal reaction kettle, sealing the reaction kettle, putting the
hydrothermal reaction kettle into a
drying oven, keeping the temperature, naturally cooling to a
room temperature, centrifugally washing by using the
ultrapure water, centrifugally washing by using
anhydrous ethanol, transferring the reaction kettle onto
watch glass, and
drying the reaction kettle in the
drying oven; and thus obtaining the cuprous oxide micron / nano
crystal. The preparation method for the cuprous oxide micron / nano crystal with the controllable morphology has the
advantage of simpleness and practicability, simple equipment operation, low
raw material price, easy synthesis, less
pollution to environment and high synthetic concentration, the problem of the cost of the
morphology control and industrialized large-scale synthesis in the prior art is solved, and the industrial production is facilitated.