A preparation method of multi-stage composite microcapsules with light-harvesting function
A compound microcapsule and light-harvesting technology, which is applied in the direction of microcapsule preparation and microsphere preparation, can solve the problems of low efficiency of light utilization and light conversion, environmental pollution, etc., and achieve good light transmittance and selective molecular passability , High electron transmission efficiency, the effect of improving transmission efficiency
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[0026] An embodiment of the present invention provides a method for preparing a multi-stage composite microcapsule with a light-harvesting function, comprising the following steps:
[0027] S1: Dispersing amphiphilic organic molecules in water to form stable one-dimensional self-assemblies.
[0028] In this step, the goal is to obtain a stable amphiphile self-assembly. The specific steps are as follows: disperse a certain amount of amphiphilic organic molecules in water, adjust the pH to a specified value, dissolve them by ultrasonic waves, and then place them at room temperature for a certain period of time to assemble them. The organic molecules used are composed of a hydrophilic part and a hydrophobic part. In aqueous solution, the hydrophobic part is close to each other and aggregates, and the hydrophilic part is distributed on the periphery to stabilize the assembly. Through this method, one-dimensional organic molecular self-assemblies with stable morphology can be obta...
Embodiment 1
[0047] Disperse amphiphilic organic molecules in water, dissolve them by ultrasonic waves, and place the prepared solution at room temperature for more than a week, so that it can form a stable one-dimensional self-assembly 1; The solution was added to the assembled amphiphilic organic molecule solution, and the pH value was adjusted to pH3 to form a one-dimensional ordered organic molecule / porphyrin co-assembly 1. Add folic acid (final concentration 1.4 mmol / liter), chloroplatinic acid (final concentration 0.2 mmol / liter), and utilize visible light irradiation to obtain gray-green aggregates, which are recorded as organic molecule / porphyrin / platinum complex 1; Milliliters of the aqueous solution containing the complex was added to 4 milliliters of tetradecane, and tetraethyl orthosilicate (final concentration 200 mmol / liter) was added after shaking, and reacted at room temperature for 48 hours to form a stable multi-stage composite microcapsule 1, and then passed The method o...
Embodiment 2
[0049] Disperse amphiphilic organic molecules in water, dissolve them by ultrasonic waves, and place the prepared solution at room temperature for more than a week, so that it can form a stable one-dimensional self-assembly 2; The porphin solution was added to the assembled amphiphilic organic molecule solution, and the pH value was adjusted to pH4 to form a one-dimensional organic molecule / porphyrin co-assembly 2 . Add ascorbic acid (final concentration 1.6 mmol / L), potassium tetrachloroplatinate (final concentration 0.3 mmol / L), and irradiate with visible light to obtain a gray-green aggregate, which is recorded as organic molecule / porphyrin / platinum complex 2; Add 1 milliliter of the aqueous solution containing organic molecules / porphyrin / platinum complex to 3 milliliters of dodecane, add 30 microliters of methyl orthosilicate (final concentration 150 mmol / liter) after shaking, and react at room temperature for 72 hours , forming stable multi-level composite microcapsules 2...
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