Preparation method and application of TiN-In2S3 nano-composite photocatalyst

A tin-in2s3 and nanocomposite technology, which is applied in the field of photocatalysis, can solve problems such as the limitation of hydrogen production activity, achieve the effects of short reaction time, simple equipment, and improve the hydrogen production activity of photolysis water

Active Publication Date: 2018-10-02
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its shortcomings such as the rapid recombination of photogenerated electrons and holes limit its hydrogen production activity. Therefore, it is necessary to develop an effective indium sulfide composite material that promotes the separation of photogenerated electrons and holes to improve its photocatalytic activity.

Method used

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  • Preparation method and application of TiN-In2S3 nano-composite photocatalyst
  • Preparation method and application of TiN-In2S3 nano-composite photocatalyst
  • Preparation method and application of TiN-In2S3 nano-composite photocatalyst

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Experimental program
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Effect test

Embodiment 1

[0025] 1) Weigh 8.2 mmol of hexadecylamine and add it to 100 mL of absolute ethanol, add 1.6 ml of deionized water with a pipette gun, and stir at 500 r / min for 30 min to obtain solution A.

[0026] 2) Use a pipette gun to pipette 4.45mL of isopropyl titanate into solution A, adjust the rotation speed to 300r / min, stir for 3 minutes to obtain suspension B, and place suspension B in the room for aging for 18 hours.

[0027] 3) The titanium dioxide in the suspension B was separated by centrifugation at a centrifugal speed of 7000r / min, and the separated solid matter was dried in an oven at 60°C to obtain titanium dioxide nanospheres.

[0028] 4) Take 100mg of titanium dioxide nanospheres and spread them on a corundum boat of 75×13×9mm, place the corundum boat in a high-temperature tube furnace, in 99.99wt% high-purity ammonia gas (flow rate of 200 standard ml / min) Heating to 700°C in a medium temperature, and keeping it warm for 4 hours, and getting titanium nitride nanospheres ...

Embodiment 2

[0033] 1) Weigh 8.2 mmol of hexadecylamine and add it to 100 mL of absolute ethanol, add 1.6 ml of deionized water with a pipette gun, and stir at 500 r / min for 30 min to obtain solution A.

[0034] 2) Use a pipette gun to pipette 4.45mL of isopropyl titanate into solution A, adjust the rotation speed to 300r / min, stir for 3 minutes to obtain suspension B, and place suspension B in the room for aging for 18 hours.

[0035] 3) The titanium dioxide in the suspension B was separated by centrifugation at a centrifugal speed of 7000r / min, and the separated solid matter was dried in an oven at 60°C to obtain titanium dioxide nanospheres.

[0036] 4) Spread 100mg of titanium dioxide nanospheres on a corundum boat of 75×13×9mm, place the corundum boat in a high-temperature tube furnace, in 99.99% high-purity ammonia gas (flow rate: 200 standard ml / min) Heating to the range of 700° C., keeping it warm for 4 hours, and cooling down with the furnace to obtain titanium nitride nanospheres...

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Abstract

The invention discloses a preparation method of a TiN-In2S3 nano-composite photocatalyst, which includes the steps of: adding titanium nitride nanospheres to anhydrous ethanol, performing ultrasonic dispersion, adding cetyl trimethyl ammonium bromide with stirring, adding indium chloride tetrahydrate and thioacetamide with uniform stirring, and performing constant temperature condensing reflux at95 DEG C to obtain a turbid liquid; centrifugally separating the turbid liquid, and drying a separated solid substance to prepare the TiN-In2S3 nano-composite photocatalyst. The preparation method forthe nano flower-like spherical composite photocatalyst, which is adjustable in appearance and nano-diameter, has universality.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, specifically a TiN-In 2 S 3 Preparation method and application of nanocomposite photocatalyst. Background technique [0002] With the rapid economic development and dramatic population growth, the depletion of traditional fossil energy and the corresponding environmental problems are the problems faced by chemists and technologists in the 21st century. Solar energy is a clean, non-polluting and infinitely renewable clean energy that can meet current and future human energy needs. At present, many semiconductors have been studied to have the performance of photocatalytic water splitting to produce hydrogen. Hydrogen is a clean energy with good combustion performance and high energy conversion efficiency, and is regarded as the most ideal clean energy. Therefore, in recent years, photocatalytic water splitting for hydrogen production has attracted more and more attention from researchers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J35/02B01J35/08C01B3/04
CPCB01J27/24B01J35/004B01J35/023B01J35/08C01B3/042C01B2203/1041Y02E60/36
Inventor 杨明辉戚为量刘思奇孟祥建赵杉林李飞姜恒
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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