Activated graphene oxide adsorbent for removing tetracycline and preparation method of adsorbent

Abstract

The invention discloses a preparation method of an activated graphene oxide adsorbent for removing tetracycline. The preparation method comprises the following steps: according to percentage by mass, namely the ratio of purified graphite oxide to KOH powder of 1 to 4, grinding and uniformly mixing the purified graphite oxide and the KOH powder in an agate mortar so as to obtain mixed powder; adding the mixed powder to a ceramic pipe, then adding to a quartz tube furnace, calcining at 750 DEG C for 2h in N2 protective effect, then reducing temperature at temperature decreasing rate of 30 DEG C/min, and turning off nitrogen when the quartz tube furnace is cooled to room temperature so as to obtain the activated graphene oxide adsorbent for removing tetracycline. The activated graphene oxide adsorbent for removing tetracycline, disclosed by the invention, can improve the specific surface area and the hydrophilicity of the graphene oxide, and greatly improve the adsorption performance of a water solution to tetracycline. The preparation method disclosed by the invention is simple in process, and since a conventional chemical reagent is adopted in a preparing process, cost is saved.

Description

technical field [0001] The invention relates to an activated graphene oxide adsorbent for removing tetracycline and a preparation method thereof, belonging to the technical field of nanometer materials and environmental science. Background technique [0002] Antibiotics are the fermentation products of microorganisms, which can inhibit or kill the growth of specific microorganisms. Antibiotics are known as new pollutants in water, and tetracycline is a typical one. At present, people use antibiotics very frequently, but their utilization rate is very low. Most antibiotics are absorbed and utilized in a small amount after ingestion into the body, and the rest will be excreted in the form of original drugs or metabolites. In vitro, and eventually into the entire ecosystem. Studies have shown that some residual antibiotics will be passed to the human body through the food chain, which will weaken the human body's immunity, cause some allergic reactions, and may induce gene mu...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of activated graphene oxide adsorbent for removing tetracycline in order to solve the technical problems such as the above-mentioned complicated preparation process and being unsuitable for large-scale batch production.