Rapid detection reagent and method for adsorptivity of biomass charcoal material

Abstract

The invention relates to a rapid detection reagent and method for adsorptivity of a biomass charcoal material. Rapid determination technology for the adsorptivity of the biomass charcoal material has not been disclosed in the prior art. The detection reagent provided by the invention has the characteristic that every 100 g of the detection reagent contains 60 to 75 g of ethanol and 0.005 to 0.02 g of bromocresol green, with the balance being water. The detection method is characterized by comprising the following steps: (1) weighing known parts of a charcoal material, mixing each part of the charcoal material with 5 mL of the detection reagent so as to obtain corresponding parts of a reaction solution, determining the values L*, a* and b* of each part of the reaction solution by using a color difference meter and preparing a colorimetric card; (2) mixing a biomass charcoal material sample with the detection reagent, carrying out ultrasonic treatment for 3 min and then carrying out filtering so as to obtain a solution; and (3) directly comparing the solution with the colorimetric card and directly estimating the adsorptivity of the biomass charcoal material sample. The rapid detection reagent is simple in composition and can realize cheap and rapid determination of the adsorptivity of the biomass charcoal material.

Description

technical field [0001] The invention relates to a rapid detection reagent and detection method for the adsorption performance of biomass carbon materials, which are specially used for rapid detection of the adsorption performance of biomass carbon materials. Background technique [0002] In contemporary society, people pay more and more attention to environmental problems. Biomass carbon materials are ideal materials for air purification, and the adsorption performance of biomass carbon materials directly determines the size of its air purification ability. The existing biomass carbon material adsorption performance There are two main categories of measurement methods. [0003] One is to use the specific surface area adsorption instrument to characterize the adsorption performance of carbon materials. The advantages of this type of method are: accurate measurement, and can characterize the isothermal adsorption and desorption curves of carbon materials; the disadvantages ar...

AI Technical Summary

Problems solved by technology

The advantages of this type of method are: accurate measurement, and can characterize the isothermal adsorption and desorption curves of carbon materials; the disadvantages are: the price of the specific surface area adsorption instrument is relatively expensive, and liquid nitrogen is needed to cool the test quartz tube during the test. For the test material to be flushed with nitrogen continuously, it takes more than 20 hours to test a sample. If the sample pretreatment time is added, the entire measurement cycle is more than 1 day. The test process is time-consuming, expensive and laborious.

However, the existing published patents do not disclose the technology for rapid determination of the adsorption performance of biochar. Therefore, how to quickly and cheaply measure the adsorption performance of biochar materials is a technology that urgently needs to be researched and solved.