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Preparing method and application of titanium dioxide/indium phosphide composite

A composite material and titanium dioxide technology, applied in chemical instruments and methods, chemical/physical processes, water treatment of special compounds, etc., to achieve good degradation effect, high repetition rate, and simple operation

Active Publication Date: 2016-12-07
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, among the current reports on the recombination of indium phosphide and semiconductors, there are very few reports on the recombination of indium phosphide with titanium dioxide.

Method used

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  • Preparing method and application of titanium dioxide/indium phosphide composite
  • Preparing method and application of titanium dioxide/indium phosphide composite
  • Preparing method and application of titanium dioxide/indium phosphide composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of the titanium dioxide / indium phosphide composite material of the present embodiment is carried out according to the following steps:

[0029] 1) Dissolution and complexation of indium salt: Accurately weigh 1 mmol of indium chloride (InCl 3 ) was dissolved in a beaker filled with 10mL of deionized water, placed on a magnetic stirrer, stirred vigorously for 10min to fully dissolve, then added 5mL of diethylenetriamine (DETA) for complexation reaction, and continued to stir for 10min until the reaction completely;

[0030] 2) Adding of reducing agent: accurately weigh 4mmol potassium borohydride (KBH 4 ) or sodium borohydride is added in the above-mentioned solution, and magnetic stirring is continued, at this moment, a large amount of bubbles are released, and the solution changes from milky white to lead gray before;

[0031] 3) Addition of titanium salt: after the solution has no bubbles, accurately weigh 4 mmol of titanium sulfate (Ti(SO 4 ...

Embodiment 2

[0037] The preparation method of the titanium dioxide / indium phosphide composite material of the present embodiment is carried out according to the following steps:

[0038] 1) Dissolution and complexation of indium salt: Accurately weigh 1 mmol of indium chloride (InCl 3 ) was dissolved in a beaker containing 10 mL of deionized water, placed on a magnetic stirrer, stirred vigorously for 10 minutes to fully dissolve, then added 5 mL of diethylenetriamine (DETA), and continued to stir;

[0039] 2) Adding of reducing agent: accurately weigh 4mmol potassium borohydride (KBH 4 ) or sodium borohydride is added in the above-mentioned solution, and magnetic stirring is continued, at this moment, a large amount of bubbles are released, and the solution changes from milky white to lead gray before;

[0040] 3) Addition of titanium salt: after the solution has no bubbles, accurately weigh 4 mmol of titanium sulfate (Ti(SO 4 ) 2 ), added in the above solution, and continued to stir fo...

Embodiment 3

[0046] The preparation method of the titanium dioxide / indium phosphide composite material of the present embodiment is carried out according to the following steps:

[0047] 1) Dissolution and complexation of indium salt: Accurately weigh 1 mmol of indium chloride (InCl 3 ) was dissolved in a beaker containing 10 mL of deionized water, placed on a magnetic stirrer, stirred vigorously for 10 min to fully dissolve, then added 5 mL of diethylenetriamine (DETA), and continued to stir for 10 min;

[0048] 2) Adding of reducing agent: accurately weigh 4mmol potassium borohydride (KBH 4 ) or sodium borohydride is added in the above-mentioned solution, and magnetic stirring is continued, at this moment, a large amount of bubbles are released, and the solution changes from milky white to lead gray before;

[0049] 3) Addition of titanium salt: after the solution has no bubbles, accurately weigh 4 mmol of titanium sulfate (Ti(SO 4 ) 2 ), add in the above-mentioned solution, continue to...

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Abstract

The invention relates to the technical field of composite preparation, in particular to a preparing method and application of a titanium dioxide / indium phosphide composite. The spherical titanium dioxide / indium phosphide composite related in the method is mainly prepared and assembled synchronously in a water and diethylenetriamine mixed solvent system with a simple composite solvothermal method. Compared with a traditional composite preparing method, the preparing method is easy to implement, the reaction is easy to control, repeatability is good, and cost is low. The degrading effect of the titanium dioxide / indium phosphide composite prepared with the method is better than that of commercial TiO2 when the titanium dioxide / indium phosphide composite is applied to degradation of methylene blue or Rhodamine B or pyrrole-red B or methyl orange under the same degrading conditions.

Description

【Technical field】 [0001] The invention relates to the technical field of composite material preparation, in particular to a preparation method and application of a titanium dioxide / indium phosphide composite material. 【Background technique】 [0002] Indium phosphide (InP), as an important III-V semiconductor material, has a band gap of 1.35eV at room temperature. Due to its high thermal conductivity, high radiation resistance, high carrier mobility and many other excellent properties , so that it has a wide range of applications in many high-tech fields such as biosensors, radiation-resistant solar cells, and optical fiber communications. However, the disadvantages of high electron and hole recombination rate and easy surface oxidation limit its development in the field of photocatalysis. In this regard, researchers have made many explorations, such as loading with metal ions to improve its surface stability, semiconductor recombination, etc. to adjust its energy band struc...

Claims

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Application Information

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IPC IPC(8): B01J27/18C02F1/30C02F101/38C02F101/34
CPCC02F1/30B01J27/1811C02F2101/34C02F2101/38C02F2101/308C02F2305/10B01J35/39
Inventor 刘淑玲韩晓莉仝建波程芳玲
Owner SHAANXI UNIV OF SCI & TECH
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