Biochar-Embedded Soft Hydrogel and Their Use in Ag Nanoparticle Preparation and Reduction of 4-Nitro Phenol


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ŞAHİNER N., Karakoyun N., Alpaslan D., Aktaş N.

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS, vol.62, no.11, pp.590-595, 2013 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 62 Issue: 11
  • Publication Date: 2013
  • Doi Number: 10.1080/00914037.2013.769163
  • Journal Name: INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.590-595
  • Keywords: Flexible nanonetwork, hydrogel reactor, hydrogel-biochar composite, in situ metal nanocatalyst preparation, 4-nitrophenol reduction, AROMATIC NITRO-COMPOUNDS, CATALYST, ACID, COMBUSTION, PYROLYSIS, REMOVAL, SILICA, CHAR

Abstract

The authors report the synthesis of a composite hydrogel based on acrylamide-chicken biochar(AAm)-CBand its use as a template in the preparation of silver metal nanoparticles. Moreover, we demonstrate the efficient utilization of p(AAm)-CB composite hydrogel as a reactor vessel in the reduction of an organic contaminant 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). Experimental parameters affecting 4-NP reduction rate were investigated. The kinetics of the reduction reaction under different reaction conditions were also evaluated to determine the activation parameters. Activation energy for the reduction of 4-NP was 15.25kJmol1 and p(AAm)-CB-Ag composites possessed 99.45% activity after five repetitive uses.