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Triplet-triplet annihilation up-conversion hydrogen production system as well as construction method and application thereof

A triplet annihilation and triplet technology, which is applied in the fields of energy science and catalysis science, can solve the problems that have not existed, and achieve the effects of simple construction process, good catalytic hydrogen production activity, and easy mass preparation.

Active Publication Date: 2017-07-07
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, there is no report on the use of TTA photon upconversion technology to catalyze hydrogen production

Method used

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  • Triplet-triplet annihilation up-conversion hydrogen production system as well as construction method and application thereof
  • Triplet-triplet annihilation up-conversion hydrogen production system as well as construction method and application thereof
  • Triplet-triplet annihilation up-conversion hydrogen production system as well as construction method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The preparation of triplet-triplet annihilation upconversion micelles comprises the following steps:

[0055] The photosensitizer palladium porphyrin and the acceptor molecule 9,10-diphenylethynylanthracene were dissolved in tetrahydrofuran at a molar ratio of 1:100, and then Tween-80 with 50 times the molar equivalent of the acceptor molecule was added to the obtained solution , stir evenly, and then slowly inject the stirred solution into water, and at the same time stir the aqueous solution rapidly to obtain a Tween-80 stable triplet-triplet annihilation upconversion nano-micelle luminescence system.

[0056] Wherein, the structural formulas of the above-mentioned photosensitizer palladium porphyrin and the acceptor molecule 9,10-diphenylethynyl anthracene are shown in (I) and (II) respectively:

[0057]

Embodiment 2

[0059] Same as Example 1, the difference is that the molar ratio of the photosensitizer palladium porphyrin to the acceptor molecule 9,10-diphenylethynyl anthracene is changed to 1:50, and the amount of Tween-80 added is 30 times the mole of the photosensitizer Equivalent, other conditions remain unchanged, Tween-80 stable triplet-triplet annihilation upconversion nano-micelle luminescence system is prepared.

Embodiment 3

[0061] Same as Example 1, the difference is that the molar ratio of the photosensitizer palladium porphyrin to the acceptor molecule 9,10-diphenylethynyl anthracene is changed to 1:20, and the amount of Tween-80 added is 10 times that of the acceptor molecule molar equivalent, and other conditions remain unchanged, a Tween-80 stable triplet-triplet annihilation upconversion nanomicelle luminescence system is prepared.

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Abstract

The invention discloses a triplet-triplet annihilation up-conversion hydrogen production system. The up-conversion hydrogen production system is prepared from a photosensitizer, acceptor molecules, a hydrogen production catalyst and a sacrificial body, wherein the photosensitizer is palladium porphyrin, the acceptor molecules are 9,10-bis phenylethynyl anthracene, the hydrogen production catalyst is Cd0.5Zn0.5S, and the sacrificial body is prepared from Na2SO3 and Na2S. The up-conversion hydrogen production system has good stability and efficient catalytic hydrogen production activity. The invention also discloses a construction method of the up-conversion hydrogen production system, and application of the up-conversion hydrogen production system in photocatalytic hydrogen production.

Description

technical field [0001] The present invention relates to the fields of energy science and catalysis science. More specifically, it relates to a triplet-triplet annihilation upconversion hydrogen production system and its construction method and application. Background technique [0002] Energy issues and environmental issues are two major issues facing mankind today. As the main source of energy, fossil fuels play an extremely important role in industrial production, but due to their non-renewability and environmental pollution, finding renewable economical and clean energy has become a worldwide issue (Armaroli, N.et. al. Angew. Chem. Int. Ed. 2007, 46(1-2), 52-66). As a sustainable clean energy source, solar energy has attracted widespread attention. Effective use of solar energy can not only partially solve the crisis of fossil energy depletion, but also reduce environmental pollution caused by fossil fuel combustion. Therefore, the effective conversion of solar energy...

Claims

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Application Information

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IPC IPC(8): B01J27/04C01B3/02
CPCB01J27/04C01B3/02
Inventor 李嫕于天君曾毅陈金平
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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