A kind of preparation method of sulfur/lanthanum ferrite nanocomposite material
A nanocomposite material, the technology of lanthanum ferrite, which is applied in the field of photocatalyst preparation, can solve the problem of low photocatalytic performance of lanthanum ferrite, and achieve the effect of improving light utilization efficiency, photocatalytic efficiency and photocatalytic performance
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Embodiment 1
[0025] Embodiment 1: the preparation method of a kind of sulfur / lanthanum ferrite nanocomposite material of the present embodiment is carried out according to the following steps:
[0026] Step 1: Add 1 mol of iron acetylacetonate, 1 mol of lanthanum nitrate, and 2 mol of citric acid into 4000 mL of absolute ethanol, magnetically stir until uniformly mixed, and adjust the pH value to 6 to obtain a precursor solution;
[0027] Step 2: Transfer the precursor solution obtained in step 1 to the reaction kettle, hydrothermally react at 180 ° C for 10 h, cool and centrifuge for 3 times, dry at 80 ° C for 6 h, and then roast at 600 ° C for 3 h to obtain LaFeO 3 nanoparticles;
[0028] Step 3: Add 10mol of LaFeO 3 Nanoparticles were mixed with 3mol thiourea and ground uniformly. After tableting, they were calcined at 300°C for 3 hours, and then ground again after natural cooling to obtain sulfur / lanthanum ferrite nanocomposites.
Embodiment 2
[0029] Embodiment 2: the preparation method of a kind of sulfur / lanthanum ferrite nanocomposite material of the present embodiment is carried out according to the following steps:
[0030] Step 1: Add 1 mol of iron acetylacetonate, 1 mol of lanthanum nitrate, and 2 mol of citric acid into 4000 mL of absolute ethanol, magnetically stir until uniformly mixed, and adjust the pH value to 6 to obtain a precursor solution;
[0031] Step 2: Transfer the precursor solution obtained in step 1 to the reaction kettle, hydrothermally react at 180 ° C for 10 h, cool and centrifuge for 3 times, dry at 80 ° C for 6 h, and then roast at 600 ° C for 3 h to obtain LaFeO 3 nanoparticles;
[0032] Step 3: Add 10mol of LaFeO 3 Nanoparticles were mixed with 4mol thiourea and ground uniformly. After tableting, they were calcined at 300°C for 3 hours, and then ground again after natural cooling to obtain sulfur / lanthanum ferrite nanocomposites.
Embodiment 3
[0033] Embodiment 3: the preparation method of a kind of sulfur / lanthanum ferrite nanocomposite material of the present embodiment is carried out according to the following steps:
[0034] Step 1: Add 1 mol of iron acetylacetonate, 1 mol of lanthanum nitrate, and 2 mol of citric acid into 4000 mL of absolute ethanol, magnetically stir until uniformly mixed, and adjust the pH value to 6 to obtain a precursor solution;
[0035] Step 2: Transfer the precursor solution obtained in step 1 to the reaction kettle, hydrothermally react at 180 ° C for 10 h, cool and centrifuge for 3 times, dry at 80 ° C for 6 h, and then roast at 600 ° C for 3 h to obtain LaFeO 3 nanoparticles;
[0036] Step 3: Add 10mol of LaFeO 3 Nanoparticles were mixed with 5mol thiourea and ground evenly. After tableting, they were calcined at 300°C for 3 hours, and then ground again after natural cooling to obtain sulfur / lanthanum ferrite nanocomposites.
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