a cu-tio 2 Composite Materials and Applications
A composite material and solution technology, applied in water/sewage treatment, chemical/physical process, oxidized water/sewage treatment, etc., can solve the problems of inability to remove arsenic, easy to be corroded, etc., to achieve convenient and fast treatment, rich in hydroxyl groups , the effect of low energy consumption
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Embodiment 1
[0029] S1. 5g TiO 2 Disperse in 500mL deionized water, ultrasonically treat for 30min;
[0030] S2, 5mmol Cu (NO 3 ) 2 ·3H 2 0 is fully dissolved in the suspension obtained from S1, and then ultrasonically treated for 30min;
[0031] S3, put 25ml KBH 4 The solution (0.06g / L) was added dropwise to the solution obtained from S2, followed by vigorous stirring at 298.15K for 20h. After stirring, the solution was centrifuged (6000rpm for 5min) to collect the blue solid precipitate, washed with a sufficient amount of deionized water, and then placed in an oven at 313.15K for overnight drying; after cooling the dried solid to room temperature, carry out Fully ground to obtain Cu-TiO 2 composite material.
[0032] The Cu-TiO prepared in this example was 2 Composites and pure TiO 2 XRD diffraction was performed, and the diffraction spectrum was as follows figure 1 shown. from figure 1 It can be seen that, with pure anatase TiO 2 These reflections correspond to pure TiO 2 ...
Embodiment 2
[0037] S1, put 2g TiO 2 Disperse in 100mL deionized water, ultrasonically treat for 30min;
[0038] S2, 1 mmol Cu (NO 3 ) 2 ·3H 2 0 is fully dissolved in the suspension obtained from S1, and then ultrasonically treated for 30min;
[0039] S3, put 5mlKBH 4 The solution (0.06g / L) was added dropwise to the solution obtained from S2, followed by vigorous stirring at 298.15K for 20h. After stirring, the solution was centrifuged (6000rpm for 5min) to collect the blue solid precipitate, washed with a sufficient amount of deionized water, and then placed in an oven at 313.15K for overnight drying; after cooling the dried solid to room temperature, carry out Fully ground to obtain Cu-TiO 2 composite material.
[0040] The Cu-TiO prepared in Example 2 and Example 1 2 Compared with the composite material, the color of the composite material in Example 2 is lighter than that of the composite material in Example 1. TiO 2 It is white and Cu(II) is blue-green, so it can be inferred...
Embodiment 3
[0042] S1. 1g TiO 2 Disperse in 100mL deionized water, ultrasonically treat for 30min;
[0043] S2, 1 mmol Cu (NO 3 ) 2 ·3H 2 0 is fully dissolved in the suspension obtained from S1, and then ultrasonically treated for 30min;
[0044] S3, put 5ml KBH 4 The solution (0.06g / L) was added dropwise to the solution obtained by S2, and the reactor was sealed and vigorously stirred at 298.15K for 20h. After the stirring, the solution was centrifuged (6000rpm for 5min) to collect the solid precipitate, washed with a sufficient amount of deionized water, and then placed in an oven at 313.15K for overnight drying. After cooling the dried solid to room temperature, it is fully ground to obtain Cu-TiO 2 composite material.
[0045] The solid precipitate in this example was dark green, and the blue precipitate in Example 1 could not be obtained, and the material composition was unstable and easily deteriorated.
[0046] Second, the Cu-TiO 2 Composite material for removal of trivale...
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Abstract
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