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ZIF-8 magnetic self-driving micro-tube motor adsorbent with controllable size and application thereof

A ZIF-8, self-driven technology, applied in the direction of adsorption water/sewage treatment, other chemical processes, alkali metal oxides/hydroxides, etc., can solve problems such as difficulty in recycling, and achieve promotion of transport, increased concentration, and improved adsorption. effect of ability

Active Publication Date: 2019-07-23
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But ZIF is more difficult to recover during use

Method used

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  • ZIF-8 magnetic self-driving micro-tube motor adsorbent with controllable size and application thereof
  • ZIF-8 magnetic self-driving micro-tube motor adsorbent with controllable size and application thereof
  • ZIF-8 magnetic self-driving micro-tube motor adsorbent with controllable size and application thereof

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Embodiment 1

[0035] (1) Preparation of magnetic microtubes: immerse 3.0g kapok into 70mL mixed ethanol solution containing aluminum nitrate (0.05mol) and ferric nitrate (0.01mol), soak for 20min, then ultrasonic for 20min; dry at 80℃ for 8h Calcined at 550°C for 1 h, a magnetic mixed metal oxide hollow microtube (γ-Al 2 o 3 / γ-Fe 2 o 3 );

[0036] (2) Preparation of magnetic microtube motor: take 0.5g mixed metal oxide (γ-Al 2 o 3 / γ-Fe 2 o 3 ) immersed in 20mL manganese nitrate solution (25%) for 1h, filtered with filter paper, dried at 80°C for 6h, and then calcined at 400°C for 1h, the black product after calcining is the magnetic microtube motor (γ-Al 2 o 3 / γ-Fe 2 o 3 / MnO 2 ), denoted as M;

[0037] (3) Pre-preparation of ZIF-8 magnetic microtube motor with methanol as solvent: the test set up three groups of treatments, and prepared by dissolving 2mmol of zinc nitrate and 2mmol of dimethylimidazole in 40mL of methanol solution, stirring and mixing. 80mL mixed methanol s...

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Abstract

The invention discloses a ZIF-8 magnetic self-driving micro-tube motor adsorbent with controllable size and application thereof and belongs to a novel MOFs material adsorbent. With ceiba as a template, a ZIF-8 magnetic self-driving micro-tube motor is manufactured through an in-situ growing method. According to the ZIF-8 magnetic self-driving micro-tube motor adsorbent disclosed by the invention,firstly, a magnetic hollow tube motor is obtained through an impregnation and calcination method; then, ZIF-8 is loaded on the micro-tube motor through the in-situ growing method; and finally, the ZIF-8 magnetic micro motor is obtained. The preparation process is simple, the reaction conditions are mild and easy to control, and the large-scale preparation can be carried out; the obtained MOFs micro-motor adsorbent also has excellent adsorption capacity and dynamic fast adsorption performance, and the motion direction can be controlled in the presence of an external magnetic field, thereby making the adsorption function more intelligent. The adsorbent can effectively adsorb different organic pollutants under the simulated sewage condition, and can move and adsorb in a real water body, thushaving great potential of practical application.

Description

technical field [0001] The invention relates to a MOFs micro-motor adsorbent for sewage treatment, in particular to a ZIF-8 magnetic self-driving micro-tube motor adsorbent with adjustable ZIF size and its application. Background technique [0002] With the rapid development of industry, a large amount of pollutants are discharged into water bodies, so water pollution has always been a hot topic of concern, and adsorption technology has been widely used in sewage treatment because of its low cost and high efficiency. Compared with traditional adsorbents, metal-organic frameworks (MOFs) materials have high porosity and stability, large specific surface area and flexible and adjustable structure, so they are used as ideal adsorbents for environmental purification. If the adsorbent is endowed with the ability to move autonomously so that it can be dynamically adsorbed in sewage, it can promote the transport of substances in the solution and increase the concentration of polluta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F101/30
CPCB01J20/226B01J20/186B01J20/08B01J20/06B01J20/28009B01J20/30C02F1/285C02F2101/30C02F2101/308
Inventor 李嘉刘君邴兴美王福东孙小凡杨文宁
Owner UNIV OF JINAN
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