Preparation and properties of hydrogel based on sawdust cellulose for environmentally friendly slow release fertilizers

Abstract: A novel hydrogel slow-release nitrogen fertilizer based on sawdust with water absorbency was prepared using grafting copolymerization. Urea was incorporated as nitrogen source in a hydrogel fertilizer. Potassium persulfate (KPS) and N,N᾽-methylenebis acrylamide (MBA) were used as the initiator and cross-linker, respectively. The structure and properties of the samples were characterized by XPS, EDS, SEM, XRD and FTIR. The effects of various salt solutions, ionic strength and pH on swelling behavior were discussed. The results showed that the largest water absorbency of the sample reached 210 g/g in distilled water. In addition, the sample had the good nitrogen release property. Thus, the novel environmentally friendly hydrogel fertilizer may be widely applied to agricultural and horticultural fields.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Preparation and properties of hydrogel based on sawdust cellulose for environmentally friendly slow release fertilizers ; volume:9 ; number:1 ; year:2020 ; pages:139-152 ; extent:14
Green processing & synthesis ; 9, Heft 1 (2020), 139-152 (gesamt 14)

Creator
Zhang, Xiao
Liu, Yanlu
Lu, Panfang
Zhang, Min

DOI
10.1515/gps-2020-0015
URN
urn:nbn:de:101:1-2501120449100.794528449284
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:20 AM CEST

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Associated

  • Zhang, Xiao
  • Liu, Yanlu
  • Lu, Panfang
  • Zhang, Min

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