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Sponge loaded photocatalyst and application thereof

A technology of photocatalyst and sponge, which is applied in the direction of catalytic reaction, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc. It can solve the problems of pollution, photocatalyst waste, photocatalyst load, etc., and achieve improvement Scope of application, high reuse rate, and stable properties

Active Publication Date: 2017-04-26
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a photocatalyst loaded on a sponge and its application, aiming to solve the problem of waste and pollution caused by not recycling the photocatalyst in the prior art, but the prior art has no method of loading the photocatalyst on the sponge Research

Method used

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  • Sponge loaded photocatalyst and application thereof
  • Sponge loaded photocatalyst and application thereof
  • Sponge loaded photocatalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of sponge-loaded photocatalyst, said sponge-loaded photocatalyst is made of sponge, silylating agent and photocatalyst, wherein, said sponge is polydimethylsiloxane sponge (PDMS) containing surface hydroxyl, said The Linker reagent is vinyltrimethoxysilane with trimethylammonium chloride modified at the end group, the photocatalyst is Rose Bengal (Rose Bengal, RB), and the silylating agent passes through the surface hydroxyl group of the sponge. The reaction is loaded on the surface of the sponge, and the photocatalyst is bonded to the modified silylating agent through an ion bond and connected to the surface of the sponge. Wherein, the structure of the photocatalyst is as follows, and the effect diagram of the photocatalyst loaded by the sponge is as follows figure 1 Shown:

[0034]

Embodiment 2

[0036] A kind of sponge-loaded photocatalyst, said sponge-loaded photocatalyst is made of sponge, silylating agent and photocatalyst, wherein, said sponge is polydimethylsiloxane sponge (PDMS) containing surface hydroxyl, said The silylating agent is 3-aminopropyltriethoxysilane, the photocatalyst is Rose Bengal (RB), and the silylating agent is loaded on the sponge by reacting with the surface hydroxyl groups of the sponge. On the surface, the photocatalyst is bonded to the amino group of the silylating agent through a covalent bond and connected to the surface of the sponge. The effect diagram of the photocatalyst loaded by the sponge is as follows figure 2 shown.

Embodiment 3

[0038] A kind of sponge-loaded photocatalyst, said sponge-loaded photocatalyst is made of sponge, silylating agent and photocatalyst, wherein, said sponge is polydimethylsiloxane sponge (PDMS) containing surface hydroxyl, said The silylating agent is vinyltrimethoxysilane whose end group is modified with propylene oxide, the photocatalyst is Rose Bengal (RoseBengal, RB), and the silylating agent passes through the surface of the sponge after modification. The hydroxyl groups are reactively supported on the surface of the sponge, and the photocatalyst is bonded to the amino group of the modified silylating agent through a covalent bond and connected to the surface of the sponge. The effect diagram of the photocatalyst loaded by the sponge is as follows image 3 shown.

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Abstract

The invention provides a sponge loaded photocatalyst, which is prepared from sponge, a Linker reagent and a photocatalyst, wherein the sponge contains surface groups; the Linker reagent at least contains two active functional groups; the photocatalyst is an organic photocatalyst or a metal complex photocatalyst; the Linker reagent is chemically bonded with the surface groups of the sponge through the active functional groups, and is then loaded on the surface of the sponge; and the photocatalyst is connected onto the surface of the sponge through being bonded with the active functional groups of the Linker reagent.

Description

technical field [0001] The invention belongs to the field of catalysts, in particular to a sponge-supported photocatalyst and its application. Background technique [0002] Photocatalyst is a chemical substance that can play a catalytic role under the excitation of photons. It usually uses visible light as a light source and is a green and efficient catalytic substance. The application of photocatalysts in cross-dehydrocoupling reactions has attracted increasing attention. Since the photocatalyst itself does not participate in the reaction, it is possible to recycle the tried photocatalyst in principle. However, in the traditional homogeneous photocatalytic reaction, due to the troublesome post-processing process, the used photocatalyst is usually discarded, resulting in a great waste of photocatalyst. In particular, metal complex photocatalysts cause great pollution to the environment after they are discarded. Loading photocatalysts is an effective way to reduce waste an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/12
CPCB01J31/124B01J2231/42B01J35/39
Inventor 张俊民张腾李兴荣周学昌刘翼振李垚垚
Owner SHENZHEN UNIV
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