a cuins 2 /tio 2 Composite photocatalyst and preparation method and application thereof
A catalyst and composite light technology, applied in physical/chemical process catalysts, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of poor photocatalytic activity, no research report on composite materials, etc. Efficient treatment technology, superior photocatalytic activity, and the effect of broadening the absorption range
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Embodiment 1
[0028] (1) with anatase TiO 2 Powder as raw material, weigh 1.0g TiO 2The powder was added to 50mL NaOH solution (10mol / L) and stirred to a homogeneous solution, transferred to an autoclave at 150°C for 22h reaction, after natural cooling, stirred and soaked in dilute hydrochloric acid with pH 2.5 for 8h, and then rinsed with deionized water for several times It is nearly neutral, dried at 60 °C and then calcined at 550 °C for 2 hours, with a heating rate of 5 °C / min, to obtain anatase TiO 2 Nano stave;
[0029] (2) 0.017g of copper chloride dihydrate (CuCl 2 ·2H 2 O) and 25mL of ethylenediamine were placed in a small beaker, and 0.022g of indium chloride (InCl) was added after all dissolved. 3 ) and 0.024g L-cysteine, add 25mL deionized water and magnetic stirring to assist the reaction for 30min to obtain CuInS 2 Quantum dot precursor solution; add 0.46 g of TiO prepared in step (1) 2 The nanorods were fully stirred and put into a high-pressure reactor, and heated at 2...
Embodiment 2
[0032] (1) with anatase TiO 2 Powder as raw material, weigh 1.0g TiO 2 The powder was added to 50 mL of NaOH solution (10 mol / L) and stirred to a homogeneous solution, then transferred to an autoclave at 150 °C for reaction for 24 hours. After natural cooling, it was stirred and soaked in dilute hydrochloric acid with a pH of 3 for 6 hours, and rinsed with deionized water for several times. Nearly neutral, after drying at 60 °C, calcined at 500 °C for 2 h, and the heating rate was 5 °C / min to obtain anatase TiO 2 Nano stave;
[0033] (2) 0.017g of copper chloride dihydrate (CuCl 2 ·2H 2 O) and 20mL of ethylenediamine were placed in a small beaker, and 0.022g of indium chloride (InCl) was added after all dissolved. 3 ) and 0.024g L-cysteine, add 20mL deionized water and magnetic stirring to assist the reaction for 30min to obtain CuInS 2 Quantum dot precursor solution; add 0.218g of TiO prepared in step (1) 2 The nanorods were fully stirred and put into a high-pressure re...
Embodiment 3
[0039] (1) Take 1.0g TiO 2 The powder was added to 50mL NaOH solution (8mol / L) and stirred to a homogeneous solution, transferred to a 100mL autoclave for hydrothermal reaction at 160°C for 24h, naturally cooled and soaked with dilute hydrochloric acid with a pH of 3.5; rinsed with deionized water several times To near neutrality, after drying at 60 °C, put it into the reaction kettle for calcination at 450 °C for 3 hours, and the heating rate is 5 °C / min to obtain TiO 2 Nano stave;
[0040] (2) 0.017g of copper chloride dihydrate (CuCl 2 ·2H 2 O) and 30mL of ethylenediamine were placed in a small beaker, and 0.022g of indium chloride (InCl) was added after all dissolved. 3 ) and 0.024g L-cysteine, add 45mL deionized water and magnetic stirring to assist the reaction for 30min to obtain CuInS 2 Quantum dot precursor solution; 0.097g of TiO 2 Nanorods were added to the CuInS prepared above 2 The quantum dot precursor solution was fully stirred and then placed in an autocl...
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