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

Method for degrading rhodamine B and indigo organic pollutant

A technology of organic pollutants and indigo, applied in the field of photocatalytic materials, can solve problems such as application limitations, and achieve the effects of simple synthesis method, good catalytic degradation effect, and low product cost

Inactive Publication Date: 2015-01-28
BOHAI UNIV
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses bispyridine piperazine and Anderson-type polyacids as raw materials. The complex synthesized under hydrothermal conditions has photocatalytic degradation ability, but it is limited to the catalytic degradation of methylene blue, which limits its application.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for degrading rhodamine B and indigo organic pollutant
  • Method for degrading rhodamine B and indigo organic pollutant
  • Method for degrading rhodamine B and indigo organic pollutant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1.1. Preparation of degradation catalyst

[0045] 0.1mmol CuCl 2 2H 2 O, 0.10mmol N , N '-bis(3-pyridinecarbonyl)-1,2-ethane, 0.10mmolNa 3 [CrMo 6 h 6 o 24 ]·8H 2 O (sodium chromium molybdate octahydrate) and 12.0 mL of deionized water were successively added to a 25 mL beaker, stirred at room temperature for 30 min to obtain a suspension mixture, and the pH of the suspension mixture was adjusted to 1.8 with 1.0 mol / L HCl solution, and then transferred to In a 25mL autoclave, heat up to 110°C at a heating rate of 15°C / h, keep the temperature under hydrothermal conditions for 48 hours, and then cool down to room temperature at a cooling rate of 2.5°C / h to obtain dark green blocky crystals. Rinse twice with water and absolute ethanol alternately, and dry naturally at room temperature to obtain the complex H{CuL 1 0.5 [CrMo 6 (OH) 6 o 18 ](H 2 O)} 0.5L 1 , where L 1 for N , N '-Bis(3-pyridinecarbonyl)-1,2-ethane, the structural formula is: , the product...

Embodiment 2

[0050] 1.1. Preparation of degradation catalyst

[0051] 0.40mmol CuCl 2 2H 2 O, 0.10mmol N , N '-bis(3-pyridinecarbonyl)-1,2-ethane, 0.30mmol Na 3 [CrMo 6 h 6 o 24 ]·8H 2 0 and 7.0mL of deionized water were added to the 25mL beaker successively, and stirred at room temperature for 10min to obtain a suspension mixture. After the pH of the suspension mixture was adjusted to 2.5 with 0.5mol / L HCl solution, it was transferred to a 25mL autoclave. Raise the temperature to 130°C at a heating rate of 5°C / h, keep it warm for 120h under hydrothermal conditions, and cool down to room temperature at a cooling rate of 5°C / h to obtain dark green blocky crystals, which were washed alternately with deionized water and absolute ethanol for 3 times, air-dried at room temperature to obtain the complex H{CuL 1 0.5 [CrMo 6 (OH) 6 o 18 ](H 2 O)} 0.5L 1 , where L 1 for N , N '-bis(3-pyridinecarbonyl)-1,2-ethane, the productive rate is 28%, and its PXRD diffraction pattern is as f...

Embodiment 3

[0056] 1.1. Preparation of degradation catalyst

[0057] 0.5mmol CuCl 2 2H 2 O, 0.10mmol N , N '-bis(3-pyridinecarbonyl)-1,2-ethane, 0.24mmol Na 3 [CrMo 6 h 6 o 24 ]·8H 2 0 and 11.0mL of deionized water were added to the 25mL beaker successively, and stirred at room temperature for 30min to obtain a suspension mixture. After the pH of the suspension mixture was adjusted to 2.1 with 1.0mol / L HCl solution, it was transferred to a 25mL autoclave. Raise the temperature to 120 °C at a heating rate of 10 °C / h, keep it under hydrothermal conditions for 96 h, and cool down to room temperature at a cooling rate of 10 °C / h to obtain dark green blocky crystals, which were washed alternately with deionized water and absolute ethanol for 2 times, air-dried at room temperature to obtain the complex H{CuL 1 0.5 [CrMo 6 (OH) 6 o 18 ](H 2 O)} 0.5L 1 , L 1 for N , N '-bis(3-pyridinecarbonyl)-1,2-ethane, the productive rate is 34%, and its PXRD diffraction pattern is as follows...

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

No PUM Login to View More

Abstract

The invention discloses a method for degrading rhodamine B and indigo organic pollutants. According to the method, copper chloride, octa chromium sodium molybdate and N,N'-bi(3-pyridine formyl) alkane is taken as a raw material, a hydrothermal synthesis method complex is adopted, hydrogen peroxide is added into a water body containing rhodamine B organic pollutants or indigo organic pollutants, the synthesized complex is added as a degradation catalyst, and the water body is radiated by ultraviolet light or visible light for catalytic degradation. The method has the advantages of simple process, low raw material cost, low energy consumption, high water-soluble pollutant affinity, good catalytic degradation effect and no secondary environment pollution.

Description

technical field [0001] The invention belongs to the field of photocatalytic materials, in particular to a method for degrading rhodamine B and indigo organic pollutants. Background technique [0002] Rhodamine B and indigo are commonly used organic dyes in the printing and dyeing industry, and direct discharge of wastewater containing rhodamine B and indigo into the environment will bring serious pollution to the environment. Therefore, the catalytic degradation of rhodamine B and indigo, common pollutants in dye wastewater, is an effective way to treat printing and dyeing wastewater and purify the environment. TiO 2 And their metal dopants are the most commonly used degradation catalysts for these two organic dye molecules, which have the characteristics of low toxicity and corrosion resistance. However, the synthesis process of such materials requires multiple processes such as high-temperature roasting (400 ° C ~ 600 ° C) and grinding, and the pH of wastewater in the ca...

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
IPC IPC(8): C02F1/30C02F1/32B01J31/34C02F101/30C02F103/30
CPCB01J31/34C02F1/30C02F1/32C02F2101/308C02F2103/30
Inventor 林宏艳王秀丽曾凌常之晗刘国成田爱香张巨文
Owner BOHAI UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com