Caesium adsorbing material based on sodium modified zeolite and preparation method thereof

Abstract

The invention discloses a caesium adsorbing material based on sodium modified zeolite. The caesium adsorbing material is prepared by the following steps of cleaning zeolite, and modifying by a mixed liquor which is prepared from NaCl (sodium chloride), ammonium hydroxide, diisopropylbenzene diphenylamine, FeCl3 (ferric trichloride) and FeCl2 (ferrous chloride), so as to prepare a matter A04; modifying the matter A04 by a mixed liquor which is prepared from 2-bromomethyl thiophene, 4-methyl-5-aminopyrimidine, 6-propoxypyridazine-3-amine and 2-amino-6-chloro-3-formylchromone, so as to prepare asubstance A; modifying the substance A by a mixed liquor which is prepared from ZrCl4 (zirconium tetrachloride), InCl3 (indium chloride), Zn(NO3)2 (zinc nitrate) and Sr(NO3)2 (strontium nitrate), so as to prepare a substance B; modifying the substance B by a mixed liquor which is prepared from 3-amino-4-cyanopyridine, diphenylcarbazide and 2-methyl-3-(methylmercapto) pyrazine, so as to prepare a substance C; modifying the substance C by a mixed liquor which is prepared from 2-chloro-3-aminopyrazine, 3-amino-5-bromine-2-fluoropyrimidine and 3-amino-6-(propylthio)pyridazine, so as to obtain thecaesium adsorbing material based on the sodium modified zeolite.

Description

technical field [0001] The invention belongs to the technical field of heavy metal pollution control in polluted water, and in particular relates to a cesium adsorption material based on sodium-modified zeolite and a preparation method thereof. Background technique [0002] Due to the characteristics of high toxicity, refractory, and persistence of heavy metals, heavy metal pollution in water bodies has become a serious and common environmental problem, which has attracted extensive attention from domestic and foreign scholars. Heavy metals can interact with proteins in the human body to inactivate them, and they can also accumulate in certain organs of the human body. If they exceed the limit that the human body can bear, they will affect the lungs, kidneys, liver and other important organs through blood circulation. , can cause poisoning and other diseases, and is extremely harmful to the human body. Therefore, it is of great social, economic and environmental significanc...

AI Technical Summary

Problems solved by technology

However, there is still a lack of cheap and efficient adsorbent materials for removing cesium in polluted water bodies. Therefore, the development of cesium adsorbent materials based on sodium-modified zeolites is of great significance for the treatment of heavy metal pollution in polluted water bodies.