Method for preparing high-length-diameter-ratio calcium sulfate nanowires under low-temperature conditions

The invention discloses a method for preparing high-length-diameter-ratio calcium sulfate nanowires under low-temperature conditions. The method comprises the following steps: (1) preparing a sodium sulfate inverse microemulsion composed of n-pentanol, cyclohexane, sodium sulfate and cetyl trimethylammonium bromide; (2) preparing a calcium chloride inverse microemulsion composed of n-pentanol, cyclohexane, sodium sulfate and cetyl trimethylammonium bromide; (3) mixing the sodium sulfate inverse microemulsion prepared in the step (1) and the calcium chloride inverse microemulsion prepared in the step (2) to obtain a transparent uniform mixed microemulsion; (4) adding 4-12 vol% acetone or ethanol into the mixed microemulsion, and carrying out demulsification reaction; and (5) carrying out centrifugal separation on the demulsified mixed microemulsion, sequentially carrying out ultrasonic cleaning with acetone and ethanol, and drying to obtain the calcium sulfate nanowire product. The method has the advantages of