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Online adsorption performance test platform for adsorption material and test method of platform

A technology of adsorption performance and adsorption materials, applied in the direction of analytical materials, instruments, etc., can solve the problems of discontinuity, inability to truly reflect the continuity of adsorption changes, and insufficient accuracy.

Pending Publication Date: 2019-09-20
EAST CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Usually, the batch method combined with the static method or dynamic method is used to study the adsorption behavior and adsorption process. The detection methods are basically spectrophotometry or other detection methods, which are discontinuous operations outside the adsorption process and cannot truly reflect the adsorption. Continuity of change, even the accuracy is not high enough

Method used

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  • Online adsorption performance test platform for adsorption material and test method of platform
  • Online adsorption performance test platform for adsorption material and test method of platform
  • Online adsorption performance test platform for adsorption material and test method of platform

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Embodiment 1, the adsorption of natural hydrotalcite to methyl orange:

[0039] Firstly, methyl orange was selected as the indicator, and hydrotalcite was used as the inorganic adsorbent. A 1.0 g / L methyl orange solution and a 30.0 g / L hydrotalcite suspension were preliminarily prepared for subsequent experiments (in this experiment, the Color agent + pH buffer solution beaker 2).

[0040]Standard curve: take a 1L beaker as the adsorption mixture beaker 1, use 1L deionized water as the blank control, add 1mL, 2mL, 3mL, 4mL, 5mL of 1g / L methyl orange solution into the deionized water respectively, and place in Stir on a digital temperature-controlled magnetic stirrer, send the solution into the online spectrophotometer 7 through the peristaltic pump 5, record the experimental data of each group, and draw a standard curve of absorbance and time according to the data.

[0041] Concentration of hydrotalcite suspension: choose 4mL of 1g / L methyl orange solution, add 2 mL of...

Embodiment 2

[0049] Embodiment 2, the adsorption of bentonite to europium:

[0050] 1. Experiment preparation and standard curve drawing:

[0051] Carry out preliminary preparations, connect the equipment, prepare two 1L beakers, add europium solution to the adsorption mixture beaker 1 to adjust the pH to 3.5, add acetic acid-sodium acetate and arsenazo to the chromogenic agent + pH buffer solution beaker 2 Ⅲ, turn on the peristaltic pump 5 (25 rpm) and simultaneously pass the solution and deionized water in the color developer + pH buffer solution beaker 2, and make them merge through the tee, and put the adsorption mixed solution beaker 1 and the color developer The mixed solution in the +pH buffer solution beaker 2 is introduced into the temperature adjustment heating tank 8 for heating, and the temperature adjustment heating tank 8 is set at a temperature of 30 degrees Celsius, and the europium solution (1, 2, 3, 4, 5 mL) to determine the absorbance value and draw a standard curve.

...

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Abstract

The invention relates to an online adsorption performance test platform for adsorption material and a test method of the platform. The platform comprises an adsorption mixed solution beaker, a color developing agent and pH buffer solution beaker, an autosampler and an online spectrophotometer; a mixed solution sample injection tube is inserted into the adsorption mixed solution beaker, a buffer solution sample injection tube is inserted into the color developing agent and pH buffer solution beaker, the two sample injection tubes are both connected with an inlet end of the autosampler, and an outlet end of the autosampler is connected with the online spectrophotometer via a liquid outlet conduit; the liquid outlet conduit successively penetrates a temperature adjusted heating groove and a normal temperature cooling tank; and inlet and outlet of a colorimetric ware arranged in the online spectrophotometer are arranged in the bottom and upper portions respectively. The platform and method can be used to reflex the adsorption kinetics process in real time, and reads the material adsorption performance online directly. The adsorption cycle rate of the adsorption material to an adsorbate can be also reflected, and strong experimental support is provided for discussion for the regularity of the adsorption kinetics process.

Description

technical field [0001] The invention relates to the field of adsorption performance testing of adsorption materials, in particular to an online adsorption performance test platform of adsorption materials and a testing method thereof. Background technique [0002] At present, the test method of the adsorption performance of the adsorption material mainly adopts the batch method, that is, the influence of different influencing factors on the adsorption is tested and analyzed in batches. For the determination of many metal elements after adsorption and separation, spectrophotometry is often used. The principle of spectrophotometry is a method of qualitative and quantitative analysis of the substance by measuring the absorbance of the measured substance at a specific wavelength or within a certain wavelength range. It has the advantages of high sensitivity, easy operation, and rapidity, and is the most commonly used experimental method in biochemical experiments. Many substan...

Claims

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Application Information

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IPC IPC(8): G01N35/00
CPCG01N35/00G01N2035/00524
Inventor 于涛何亚卓叶剑华
Owner EAST CHINA UNIV OF TECH