Microwave hydrothermal and solvothermal method for preparing hierarchical hollow spherical CdS crystals
A microwave hydrothermal, hollow spherical technology, applied in the direction of cadmium sulfide, etc., can solve the problems of high equipment requirements, complex process, poor repeatability, etc., and achieve the effect of high repeatability, simple process equipment, and short reaction cycle
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Embodiment 1
[0011] Embodiment 1: 1) at first, get 0.2mmol analytically pure cadmium chloride monohydrate (CdCl 2 ·H 2 O) be placed in a beaker, then dropwise add 2mL oleic acid to the beaker and stir evenly, then add 20mL cyclohexylamine, obtain a uniform oil phase solution after ultrasonic dispersion and denote it as A; 2) 0.2mmol analytically pure sulfur Dissolve acetamide (TAA) in 70mL of distilled water, and obtain a uniform aqueous solution after ultrasonic dispersion, which is designated as B; 3) Add solution A to solution B, and mix uniformly after ultrasonic dispersion to obtain solution C; 4) Add 0.5 mmol of analytically pure EDTA (ethylenediaminetetraacetic acid) to solution C, stir evenly and ultrasonically disperse to form a uniform precursor solution D; 5) Pour the above solution D into a hydrothermal reaction kettle, and the filling degree is controlled at 67% ; Then seal the hydrothermal reaction kettle, put it into the MDS-8 type temperature-pressure dual-control microwav...
Embodiment 2
[0013] Embodiment 2: 1) at first, get 0.3mmol analytically pure cadmium chloride monohydrate (CdCl 2 ·H 2 O) be placed in a beaker, then dropwise add 2mL oleic acid to the beaker and stir evenly, then add 20mL cyclohexylamine, obtain a uniform oil phase solution after ultrasonic dispersion and denote it as A; 2) 0.4mmol analytically pure sulfur Dissolve acetamide (TAA) in 70mL of distilled water, and obtain a uniform aqueous solution after ultrasonic dispersion, which is designated as B; 3) Add solution A to solution B, and mix uniformly after ultrasonic dispersion to obtain solution C; 4) Add 0.8 mmol of analytically pure EDTA (ethylenediaminetetraacetic acid) to solution C, stir evenly and ultrasonically disperse to form a uniform precursor solution D; 5) Pour the above solution D into a hydrothermal reaction kettle, and the filling degree is controlled at 62% ;Then seal the hydrothermal reaction kettle, put it into the MDS-8 type temperature-pressure double-control microwa...
Embodiment 3
[0014] Embodiment 3: 1) at first, get 0.5mmol analytically pure cadmium chloride monohydrate (CdCl 2 ·H 2 O) be placed in a beaker, then dropwise add 3mL oleic acid to the beaker and stir evenly, then add 20mL cyclohexylamine, obtain a uniform oil phase solution after ultrasonic dispersion and denote it as A; 2) 0.8mmol analytically pure sulfur Dissolve acetamide (TAA) in 70mL of distilled water, and obtain a uniform aqueous solution after ultrasonic dispersion, which is designated as B; 3) Add solution A to solution B, and mix uniformly after ultrasonic dispersion to obtain solution C; 4) Add 2 mmol of analytically pure EDTA (ethylenediaminetetraacetic acid) to the C solution, stir evenly and ultrasonically disperse to form a uniform precursor solution D; 5) Pour the above D solution into a hydrothermal reaction kettle, and control the filling degree at 65%; Then seal the hydrothermal reaction kettle, put it into the MDS-8 type temperature-pressure dual-control microwave hyd...
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