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Preparation method and application of In2S3/TiO2 photocatalyst

A technology of photocatalyst and hydrothermal method, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, chemical instrument and method, etc. It can solve the problems of complex production process and difficult control, and achieve simple operation, easy synthesis, and simple The effect of synthetic methods

Pending Publication Date: 2020-11-17
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the introduction of surfactants makes the production process complicated and difficult to control
Additionally, removal of surfactants during sample collection and purification is a challenge

Method used

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  • Preparation method and application of In2S3/TiO2 photocatalyst
  • Preparation method and application of In2S3/TiO2 photocatalyst
  • Preparation method and application of In2S3/TiO2 photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] an In 2 S 3 / TiO 2 The preparation method of photocatalyst comprises the following steps:

[0031] 1) Put 100mg of Ti 6 O 6 (O i Pr) 6 (t-BA) 6 (as disclosed in references Chem. Sci., 2015, 6, 3926-3930; Angew. Chem. Int. Ed. 2018, 57, 14852-14856; J. Mater. Chem. A, 2019, 7, 19161-19172 The corresponding solid titanium oxide clusters were prepared in advance, the same below) was added to a beaker containing 50 mL of deionized water, and Ti was formed after ultrasonic treatment for 60 minutes. 6 O 6 (O i Pr) 6 (t-BA) 6 aqueous solution;

[0032] 2) Then 0.3 mmol of indium nitrate and 0.9 mmol of sodium sulfide were added to the above solution under stirring, and the pH of the solution was adjusted to 3.0 with dilute nitric acid;

[0033] 3) The solution was transferred to a polytetrafluoroethylene liner, heated at 180 ° C for 16 h, cooled to room temperature naturally, washed three times with distilled water and ethanol, and dried in vacuum to obtain In 2 ...

Embodiment 2

[0039] an In 2 S 3 / TiO 2 The preparation method of photocatalyst comprises the following steps:

[0040] 1) Put 100mg of Ti 11 O 13 (O i Pr) 18 was added to a beaker containing 40 mL of deionized water, and Ti was formed after sonication for 1 h. 11 O 13 (O i Pr) 18 aqueous solution;

[0041] 2) Then 0.1 mmol of indium nitrate and 0.3 mmol of thiourea were added to the above solution under stirring, and the pH of the solution was adjusted to 2.0 with dilute nitric acid;

[0042] 3) The solution was transferred to a polytetrafluoroethylene liner, heated at 150 ° C for 20 h, cooled to room temperature naturally, washed three times with distilled water and ethanol, and dried in a vacuum to obtain In 2 S 3 / TiO 2 catalyst of light.

Embodiment 3

[0044] an In 2 S 3 / TiO 2 The preparation method of photocatalyst comprises the following steps:

[0045] 1) Put 100mg of Ti 7 O 4 (OEt) 20 was added to a beaker containing 45 mL of deionized water, and Ti was formed after sonication for 1 h. 7 O 4 (OEt) 20 aqueous solution;

[0046] 2) Then 0.5 mmol of indium nitrate and 1.5 mmol of thioacetamide were added to the above solution under stirring, and the pH of the solution was adjusted to 1.0 with dilute nitric acid;

[0047] 3) The solution was transferred to a polytetrafluoroethylene liner, heated at 160 ° C for 18 h, cooled to room temperature naturally, washed three times with distilled water and ethanol, and dried under vacuum to obtain In 2 S 3 / TiO 2 catalyst of light.

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Abstract

The invention discloses an In2S3 / TiO2 photocatalyst as well as a preparation method and application thereof, and the In2S3 / TiO2 photocatalyst is prepared through a hydrothermal method by taking a solid titanium oxygen cluster as a titanium source and introducing an indium source and a sulfur source. The solid titanium oxygen cluster is used as a titanium source, compared with a traditional liquidtitanium source, the solid titanium oxygen cluster is used as a precursor of titanium dioxide, and spontaneous hydrolysis and condensation reactions are avoided. The In2S3 / TiO2 photocatalyst disclosedby the invention is a green and environment-friendly material, does not generate secondary pollution after being degraded, and is wide in application range. The In2S3 / TiO2 photocatalyst provided by the invention is easy to synthesize, simple to operate and relatively strong in photocatalytic degradation capability, and can be easily and massively applied to an equipment process. According to theinvention, a new thought can be provided for the development of the TiO2-based catalyst, and a new raw material and a simple synthetic method are provided for the large-scale production of the TiO2-based composite material.

Description

technical field [0001] The present invention relates to a kind of In 2 S 3 / TiO 2 Photocatalyst, preparation method and application thereof. Background technique [0002] Titanium dioxide (TiO 2 ) has the advantages of high chemical stability, non-toxicity and low cost, so it is widely used in the field of photocatalysis. However, single-component TiO 2 Still limited by the wide band gap and fast recombination of electrons and holes. Therefore, TiO with visible light response 2 The development of matrix composite catalysts has become a research hotspot. TiO 2 Coupling with other semiconductors to build heterostructures is an effective strategy to enhance the photocatalytic performance, such as g-C 3 N 4 / TiO 2 , CuO / ZrO 2 -TiO 2 , Ag 3 PO 4 / TiO 2 Wait. In 2 S 3 It has good photosensitivity and stable physical and chemical properties, so it is widely used in the field of photocatalysis. In 3+ is much less toxic than Cd 2+ , so there is less risk of seco...

Claims

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Application Information

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IPC IPC(8): B01J27/04B01J37/10B01J37/20C02F1/30C02F101/38C02F101/34
CPCB01J27/04B01J37/10B01J37/20C02F1/30C02F2101/38C02F2101/34C02F2305/10B01J35/39
Inventor 罗涛马多谋刘皖彦陈倩金震张勇黄健张华彭夫敏
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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