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A kind of rubidium sulfate doping improved titanium-based tiO2 film photocatalyst preparation method

A photocatalyst, rubidium sulfate technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of poor photocatalytic effect, inability to absorb visible light, etc., to improve utilization efficiency, improve light Catalytic degradation efficiency and effect of increasing specific surface area

Inactive Publication Date: 2018-05-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to overcome TiO 2 Can not absorb visible light, the problems and defects of poor photocatalytic effect in the visible light range, prepared a new type of rubidium sulfate doped modified titanium-based TiO 2 Thin film photocatalyst material, and its preparation method is provided

Method used

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  • A kind of rubidium sulfate doping improved titanium-based tiO2 film photocatalyst preparation method
  • A kind of rubidium sulfate doping improved titanium-based tiO2 film photocatalyst preparation method
  • A kind of rubidium sulfate doping improved titanium-based tiO2 film photocatalyst preparation method

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Embodiment 1

[0042] Rubidium Sulfate Doped Modified Titanium-Based TiO 2 Thin-film photocatalyst material, synthesized by in-situ growth method, doped with Rb 2 SO 4 , for TiO 2 The surface structure of the sheet is modified, and the original TiO 2 A layer of oxide film is formed on the surface of the sheet, and the film is composed of microsphere structure, and it is applied to photocatalytic degradation of organic dyes.

[0043] Rubidium sulfate-doped modified titanium-based TiO as described in this paper 2 The preparation method of thin film photocatalyst material, comprises the following steps:

[0044] Step 1: Titanium Polishing

[0045] The titanium sheet is first physically polished, and the titanium sheet is polished with 600Cw, 800Cw, 1000Cw, and 1200Cw sandpaper, and cut into a uniform size of 3cm×1.5cm; then the above titanium sheet is chemically polished, and the physical polished Titanium sheet immersed in HF and HNO 3 Polishing in a polishing solution with a volume rat...

Embodiment 2

[0056] Rubidium Sulfate Doped Modified Titanium-Based TiO 2 Thin-film photocatalyst material, using in-situ growth synthesis method, using hydrothermal synthesis method, doped with Rb 2 SO 4 , for TiO 2 The surface structure of the sheet is modified, and the original TiO 2 A layer of oxide film is formed on the surface of the sheet, and the film is composed of microsphere structure, and it is applied to photocatalytic degradation of organic dyes.

[0057] Rubidium sulfate-doped modified titanium-based TiO as described in this paper 2 The preparation method of thin film photocatalyst material, comprises the following steps:

[0058] Step 1: Titanium Polishing

[0059] The titanium sheet is first physically polished, and the titanium sheet is polished with 600Cw, 800Cw, 1000Cw, and 1200Cw sandpaper, and cut into a uniform size of 3cm×1.5cm; then the above titanium sheet is chemically polished, and the physical polished Titanium sheet immersed in HF and HNO 3 Polishing in ...

Embodiment 3

[0070] Rubidium Sulfate Doped Modified Titanium-Based TiO 2 Thin-film photocatalyst material, using in-situ growth synthesis method, using hydrothermal synthesis method, doped with Rb 2 SO 4 , for TiO 2 The surface structure of the sheet is modified, and the original TiO 2 A layer of oxide film is formed on the surface of the sheet, and the film is composed of microsphere structure, and it is applied to photocatalytic degradation of organic dyes.

[0071] Rubidium sulfate-doped modified titanium-based TiO as described in this paper 2 The preparation method of thin film photocatalyst material, comprises the following steps:

[0072] Step 1: Titanium Polishing

[0073] The titanium sheet is first physically polished, and the titanium sheet is polished with 600Cw, 800Cw, 1000Cw, and 1200Cw sandpaper, and cut into a uniform size of 3cm×1.5cm; then the above titanium sheet is chemically polished, and the physical polished Titanium sheet immersed in HF and HNO 3 Polishing in ...

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Abstract

The invention discloses a preparation method of a new rubidium sulfate (Rb2SO4)-modified titanium-based TiO2 film and its application in photocatalytic degradation of organic pollutants. The preparation method includes the following steps: 1) polishing of titanium sheets; 2) hydrothermal preparation; 3) natural cooling and drying; 4) calcination to finally obtain a rubidium sulfate-modified titanium-based TiO2 film photocatalyst. And by calcining titanium-based TiO2 titanium sheets at different preparation times, the photodegradation capabilities of organic dyes with different morphologies were explored. The present invention strives to grow TiO2 sheets in situ and incorporate different elements to modify their surface structure, in order to prepare an efficient and low-cost photocatalyst and apply it in the process of degrading printing and dyeing wastewater. The present invention uses metal and non-metal co-doping to modify TiO2, which can accelerate the mass transfer of pollutants to the catalyst to improve its photocatalytic degradation efficiency.

Description

technical field [0001] The invention belongs to the field of synthesis of new technology materials, and discloses a TiO modified by rubidium sulfate 2 Preparation method of sheet and its application in photodegradation of organic pollutants. The catalyst is mainly used in the degradation of organic pollutants, especially in the treatment of printing and dyeing wastewater. Background technique [0002] 1. With the continuous development of today's society, the development of the chemical industry has also been greatly promoted, and industrial wastewater has also become a major factor in polluting the environment. One of the most serious environmental pollution industries in the chemical industry is the printing and dyeing industry. The sources and pollutant components of the dye wastewater produced by it are very complicated, and it is one of the more difficult industrial wastewater to treat. Direct discharge of printing and dyeing wastewater will bring great harm to human ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/055B01J35/02B01J35/00
CPCB01J27/055B01J35/00B01J35/30B01J35/39
Inventor 康春莉王宇寒田涛陈柏言包思琪钟宇博黄冬梅
Owner JILIN UNIV
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