Inventors: Li Y
, Qiu TB
Preparation method for processing wastewater adsorbing material containing lead
Publication date: 2012
The invention belongs to the field of high polymer material and environmental protection technology, and particularly relates to a preparation method of a lead ion imprinting crosslinking chitosan nanofiber adsorbing material applied to the wastewater containing lead. The method comprises the following steps of: preparing spinning solution by mixing the solution of chitosan and lead chloride and the solution of trifluoroacetic acid and dichloromethane according to a certain proportion; preparing the chitosan nanofiber adsorbing material by using an electrospinning process; and removing chelate ions by crosslinking agent crosslinking and solution washing treatments to obtain the lead ion imprinting crosslinking chitosan nanofiber adsorbing material. Lead ion adsorption experiments show that the adsorption amount of the adsorbing material for lead ions in the wastewater containing lead can reach 500-700mg/g, and the adsorption amount is far better than that of the traditional adsorbing material; and the preparation method of the absorbing material is simple and practical and has good promotional value.
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