Unlock instant, AI-driven research and patent intelligence for your innovation.

Nano TiO2/zeolite modified cement with photocatalysis functions, and preparation method thereof

A photocatalytic and nanotechnology, applied in the field of environmental pollutant treatment, can solve problems such as unfavorable practical application and complicated operation, and achieve the effects of high photocatalytic stability, uniform composition, great social and economic benefits and industrial application prospects

Active Publication Date: 2017-03-15
刘姣姣
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of practical application, the operation of the above method is relatively complicated, which is not conducive to practical 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
  • Nano TiO2/zeolite modified cement with photocatalysis functions, and preparation method thereof
  • Nano TiO2/zeolite modified cement with photocatalysis functions, and preparation method thereof
  • Nano TiO2/zeolite modified cement with photocatalysis functions, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] Nano-TiO with photocatalytic function of the present invention 2 The preparation method of / zeolite modified cement comprises the steps:

[0030] TiO 2 TiCl required for a theoretical solid loading of 10-40wt% 4 The precursor is added dropwise into the natural clinoptilolite slurry to fully react. During the reaction, the pH value is 2-6, the reaction temperature is 40-80°C, the reaction time is 2-6h, and the reaction process is constantly stirred;

[0031] Then the pulp is aged and filtered in sequence to obtain filter residue, which is dried and roasted after drying to obtain nano-TiO 2 / Zeolite photocatalyst, during the roasting process, the roasting temperature is 200-700°C, and the time is 1-4h;

[0032] In terms of mass percentage, 5-20wt% nano-TiO 2 / Zeolite photocatalyst mixed with 80-95wt% portland cement evenly, and then ground to prepare nano-TiO with photocatalytic function 2 / Zeolite modified cement.

[0033] TiCl used in the present invention 4 The ...

Embodiment 1

[0036] The nano-TiO with photocatalytic function of the present embodiment 2 The preparation method of zeolite modified cement is carried out according to the following steps:

[0037] 1) Use concentrated hydrochloric acid to prepare a hydrochloric acid solution with a concentration of 6mol / L, and then pipette the TiCl 4 The stock solution is slowly added dropwise into the hydrochloric acid solution to prepare TiCl with a concentration of 1.3mol / L 4 solution to obtain TiCl 4 precursor, the TiO 2 TiCl required for a theoretical solid loading of 30wt% 4Add the precursor dropwise into the natural clinoptilolite pulp, adjust the pH to 2.5, and the reaction temperature to 50°C, react for 4 hours under constant stirring, then age the pulp in turn and filter it with suction to obtain a filter residue, and then dry the filter residue. After drying and calcining at 400 °C for 2 h, nano-TiO 2 / zeolite photocatalyst (the XRD collection of samples such as figure 1 shown);

[0038] ...

Embodiment 2～17

[0041] Examples 2-17: The method is the same as that of Example 1, and the conditions and photocatalytic degradation rate of methyl orange in each example are shown in Table 1.

[0042] Table 1 is the proportioning and condition table of Embodiment 1~17

[0043]

[0044]

[0045] Nano-TiO with photocatalytic function prepared by the preparation method of the present invention 2 The composition of / zeolite modified cement mass percent is made as follows: 0.45-7.4wt% nanometer TiO 2 , 4.55-12.6wt% zeolite, 80-95wt% Portland cement, and existing TiO for cement modification 2 Compared with nano powder, nano TiO 2 / Zeolite micro particles are not easy to agglomerate, easy to mix with cement evenly; nano TiO 2 / After the zeolite modified cement is hydrated, the zeolite with certain pozzolanic activity can be combined with Ca(OH) in the cement hydration product 2 Generate C-S-H (calcium silicate hydrate) gel, so that nano-TiO 2 / Zeolite has a strong binding force with cem...

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 provides nano TiO2 / zeolite modified cement with photocatalysis functions, and a preparation method thereof. The preparation method comprises following steps: TiCl4 precursor with a theoretical TiO2 loading amount ranging from 10 to 40wt% is added into a natural clinoptilolite ore pulp for full reaction, an obtained ore pulp mixture is subjected to aging and solid-liquid separation successively so as to obtain a filter residue, and the filter residue is dried and calcinated so as to obtain a nano TiO2 / zeolite photocatalyst; by mass, 5 to 20wt% of the nano TiO2 / zeolite photocatalyst and 80 to 95wt% of Portland cement are uniformly mixed so as to obtain the nano TiO2 / zeolite modified cement with photocatalysis functions. The nano TiO2 / zeolite modified cement prepared via the preparation method possesses photocatalysis functions, photocatalytic degradation rate on methyl orange ranges from 70.3 to 98.7%, performance is stable, great socioeconomic performance is achieved, and industrialized application prospect is promising.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of environmental pollutant treatment, in particular to a nano-TiO with photocatalytic function 2 / Zeolite modified cement and preparation method thereof. [0003] 【Background technique】 [0004] With the rapid development of social economy, the continuous discharge of a large amount of sewage and waste gas has caused the earth's ecological environment to be increasingly polluted and human health to be threatened. Countries around the world have successively formulated policies to protect the ecological environment and reduce pollutant emissions. Scientists from various countries continue to research and develop new pollutant treatment technologies and materials for the treatment of environmental pollutants. In 1972, Japanese scientists such as Fujishima discovered the use of TiO 2 Water can be decomposed into hydrogen and oxygen under the action of ultraviolet light. In 1976, Carey et al adopted...

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): C04B7/02B01J29/04B01J29/00
CPCC04B7/02B01J29/00B01J29/04B01J2229/18B01J35/39
Inventor 王程黄剑锋曹丽云
Owner 刘姣姣
Features
  • R&D
  • 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