Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A preparation method of metalloporphyrin nanotube-cadmium sulfide composite photosensitive sensing material modified by graphene quantum dots

A graphene quantum dot and metalloporphyrin technology, applied in the field of photosensitive sensing materials, can solve problems such as difficult chemical coupling, colloidal stability limiting application problems, etc. The effect of efficiency

Active Publication Date: 2020-07-14
ZHEJIANG SCI-TECH UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, because they are colloids, this makes chemical coupling difficult, and the problem of colloidal stability also limits their application in many fields

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1) Preparation of tetraphenylporphyrin: add 200ml propionic acid in the reaction flask, when heated to a slight boil, then add 5.1ml benzaldehyde and 8g m-nitrobenzoic acid, stir mechanically for 3min until the solution is clear and transparent, heat up Reflux at 130°C, add 6.7ml of freshly steamed pyrrole dissolved in 30ml of propionic acid dropwise through the constant pressure dropping funnel after 10min, finish dropping within 0.5h, continue to react at reflux for 2h, turn off the heat source, and wait until the temperature drops to 100°C When the reaction solution was quickly transferred to a large beaker, gradually cooled to room temperature, 30ml of ethanol was added, left to stand overnight in the refrigerator, filtered with suction, washed with absolute ethanol until the filtrate was colorless, and then washed with hot water. Dry in a vacuum oven at 60 °C for 5 h to obtain the crude product. Then, 200 mesh reagent grade silica gel was used as the adsorbent, and...

Embodiment 2

[0048] 1) Preparation of tetraphenylporphyrin: add 200ml propionic acid in the reaction flask, when heated to a slight boil, then add 5.1ml benzaldehyde and 8g m-nitrobenzoic acid, stir mechanically for 3min until the solution is clear and transparent, heat up Reflux at 130°C, add 6.7ml of freshly steamed pyrrole dissolved in 30ml of propionic acid dropwise through the constant pressure dropping funnel after 10min, finish dropping within 0.5h, continue to react at reflux for 2h, turn off the heat source, and wait until the temperature drops to 100°C When the reaction solution was quickly transferred to a large beaker, gradually cooled to room temperature, 30ml of ethanol was added, left to stand overnight in the refrigerator, filtered with suction, washed with absolute ethanol until the filtrate was colorless, and then washed with hot water. Dry in a vacuum oven at 60 °C for 5 h to obtain the crude product. Then, 200 mesh reagent grade silica gel was used as the adsorbent, and...

Embodiment 3

[0056] 1) Preparation of tetraphenylporphyrin: add 200ml propionic acid in the reaction flask, when heated to a slight boil, then add 5.1ml benzaldehyde and 8g m-nitrobenzoic acid, stir mechanically for 3min until the solution is clear and transparent, heat up Reflux at 130°C, add 6.7ml of freshly steamed pyrrole dissolved in 30ml of propionic acid dropwise through the constant pressure dropping funnel after 10min, finish dropping within 0.5h, continue to react at reflux for 2h, turn off the heat source, and wait until the temperature drops to 100°C When the reaction solution was quickly transferred to a large beaker, gradually cooled to room temperature, 30ml of ethanol was added, left to stand overnight in the refrigerator, filtered with suction, washed with absolute ethanol until the filtrate was colorless, and then washed with hot water. Dry in a vacuum oven at 60 °C for 5 h to obtain the crude product. Then, 200 mesh reagent grade silica gel was used as the adsorbent, and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a graphene quantum dot modified metalloporphyrin nanotube-cadmium sulfide composite photosensitive sensing material. The preparation method comprises the following steps: firstly preparing tetraphenylporphyrin, then preparing water soluble manganese tetrasulfophenyl porphyrin by taking fuming sulfuric acid as a sulfur source, and growing manganese tetrasulfophenyl porphyrin nanotubes on a porous alpha-alumina substrate; then by taking thioacetamide and cadmium acetate as sources, growing cadmium sulfide nanosheet blades on stems of the manganesetetrasulfophenyl porphyrin nanotubes by utilizing a hydrothermal method, and dropwise adding polydimethylsiloxane solution dissolved with graphene quantum dots on the surface of a composite material,and reserving a manganese tetrasulfophenyl porphyrin nanotube / cadmium sulfide composite material after the porous alpha-alumina substrate is removed, so that protective effect of a support material istaken, and then stability of the sensing material and electron conductivity are improved.

Description

technical field [0001] The invention relates to the field of photosensitive sensing materials, in particular to a method for preparing a graphene quantum dot-modified metalloporphyrin nanotube-cadmium sulfide composite photosensitive sensing material. Background technique [0002] Porphyrin is a kind of compound with biomimetic properties and large π structure with many important enzyme active sites, and it is also the active center of many proteins and enzymes in nature. Because of its unique structure and superior properties, it has been widely studied in various fields. Porphyrin nano The tube has a large specific surface area, which can enhance the electrical signal and improve the catalytic ability. Porphyrins in living organisms mostly exist in water-soluble forms, and water-soluble porphyrins can also be used as DNA scavenging catalysts, photodynamic therapy photosensitizers, wastewater treatment catalysts, and gas detectors. [0003] Cadmium sulfide is a typical tra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/26C09K11/06B01J31/26
CPCB01J31/26C09K11/06G01N27/26
Inventor 万军民李况胡智文王秉彭志勤
Owner ZHEJIANG SCI-TECH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com