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Tubular titanium dioxide nanocomposite SB adsorbent loaded with zirconium dioxide and ferric oxide and its preparation method and application

A nano-composite, nano-titanium dioxide technology, applied in chemical instruments and methods, alkali metal oxides/hydroxides, alkali metal compounds, etc., can solve the problems of complex preparation process, limited application, and difficulty in separating adsorbents from water bodies. , to achieve the effect of simple preparation process, low cost and easy separation

Active Publication Date: 2019-09-27
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Luo et al. reported that zirconia carbon fiber achieved a good effect on the removal of antimony, but its preparation process is relatively complicated, especially in terms of separation, only membrane filtration can be used, which is difficult to achieve the separation of adsorbent and water body, which is extremely difficult. limits the application of this material in industrial wastewater treatment

Method used

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  • Tubular titanium dioxide nanocomposite SB adsorbent loaded with zirconium dioxide and ferric oxide and its preparation method and application
  • Tubular titanium dioxide nanocomposite SB adsorbent loaded with zirconium dioxide and ferric oxide and its preparation method and application

Examples

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Effect test

Embodiment 1

[0046] (1) Preparation of nano-titanium dioxide tubes: anatase TiO 2 Nanoparticles were dispersed into 8M sodium hydroxide solution, the ratio of the two was 5g:80mL, electromagnetically stirred for 1.5h, then transferred to a polytetrafluoroethylene autoclave, and reacted at 120°C for 24h to obtain a white solid Wash the product with deionized water until the pH value of the supernatant is neutral, then soak in 0.6M hydrochloric acid solution for 3 hours, then wash the protonated white solid product with deionized water to pH = 7, and finally, dry it at 95°C dry to obtain nano-titanium dioxide tubes;

[0047] (2) Preparation of stock solution: 3 parts by mass of zirconium chloride octahydrate (ZrOCl 2 ·8H 2 O) be dissolved in the mixed solution of N,N-dimethylformamide (DMF) and ethanol that mass ratio is 0.5:1, configure the stock solution 1 of 13 mass parts; FeCl 3 ·6H 2 O, FeCl 2 4H 2 O was dissolved in deionized water deoxygenated with nitrogen in advance, and then ...

Embodiment 2

[0051] (1) Preparation of nano-titanium dioxide tubes: anatase TiO 2 Disperse nanoparticles into 12M sodium hydroxide solution, the dosage ratio of the two is 1g:150mL, transfer it to a polytetrafluoroethylene autoclave after electromagnetic stirring for 3 hours, and heat and press at 150°C for 10 hours to obtain a white solid product Wash with deionized water until the pH value of the supernatant is neutral, then soak in 0.2M hydrochloric acid solution for 8 hours, then wash the protonated white solid product with deionized water to pH = 7, and finally dry it at 70°C , to obtain nano-titanium dioxide tubes;

[0052] (2) Preparation of stock solution: 1 mass part of zirconium chloride octahydrate (ZrOCl 2 ·8H 2 O) be dissolved in the mixed solution of N,N-dimethylformamide (DMF) and ethanol that mass ratio is 3:1, configure the stock solution 1 of 13 mass parts; FeCl 3 ·6H 2 O, FeCl 2 4H 2 O was dissolved in deionized water deoxygenated with nitrogen in advance, and then...

Embodiment 3

[0056] (1) Preparation of nano-titanium dioxide tubes: anatase TiO 2 Nanoparticles were dispersed into 10M sodium hydroxide solution, the ratio of the two was 3g:100mL, electromagnetically stirred for 2h, then transferred to a polytetrafluoroethylene autoclave, and reacted at 130°C for 18h to obtain a white solid product Wash with deionized water until the pH value of the supernatant is neutral, then soak in 0.5M hydrochloric acid solution for 5 hours, then wash the protonated white solid product with deionized water to pH = 7, and finally dry it at 90°C , to obtain nano-titanium dioxide tubes;

[0057] (2) Preparation of stock solution: 2 parts by mass of zirconium chloride octahydrate (ZrOCl 2 ·8H 2 O) be dissolved in the mixed solution of N,N-dimethylformamide (DMF) and ethanol that mass ratio is 1:1, configure the stock solution 1 of 13 mass parts; FeCl 3 ·6H 2 O, FeCl 2 4H 2 O was dissolved in deionized water deoxygenated with nitrogen in advance, then concentrated ...

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Abstract

The invention discloses a tubular titanium dioxide nano composite Sb adsorbent loaded with zirconium dioxide and ferroferric oxide and a preparation method and application thereof. the preparation method comprises the following steps of: (1) preparing a nano titanium dioxide pipe from TiO2 nano particles by using an alkaline hydrothermal method; (2) preparing zirconium chloride stock solution andstock solution containing ferric chloride and ferrous chloride respectively; (3) loading ZrO2 and Fe3O4 on the nano titanium dioxide tube to prepare the ZrO2 and Fe3O4 loaded tubular TiO2 nano composite Sb adsorbent, which is marked as ZrO2@Fe3O4@TiO2NTs. The adsorbent can adsorb Sb (III) and Sb (V) in a water body at the same time, the adsorbent with unit mass has high Sb adsorption efficiency, the separation of the adsorbent and the water body can be simply achieved under the action of a magnetic field, and the recovery efficiency of the adsorbent is high.

Description

technical field [0001] The invention belongs to the field of treatment of heavy metal polluted water bodies, and is especially suitable for the deep removal and safety control of antimony in industrial waste water, domestic sewage, ground water and sudden polluted waste water, and more specifically relates to a ZrO-loaded 2 and Fe 3 o 4 Tubular TiO 2 Nanocomposite Sb Adsorbent. Background technique [0002] my country's antimony reserves and output rank first in the world. The rapid development of antimony ore mining, printing and dyeing, flame retardant and semiconductor production has led to an increase in the use of antimony year by year, and the environmental risks caused by antimony pollution are increasing day by day. The discharge of antimony-containing wastewater causes serious pollution to the environment, and solving the pollution problem of antimony-containing wastewater has become the top priority of water treatment. As we all know, antimony has high cumulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/02B01J20/28B01J20/30C02F1/28C02F101/20
Inventor 赵晓丽汤智王珺瑜赵天慧吴爱明方蕾
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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