Gel–based Controlled Synthesis of Silver Nanoparticles and Their Applications in Catalysis, Sensing and Environmental Remediation. Issue 1 (11th January 2017)

• Record Type: Journal Article
• Authors: Bala, Sukhen; Mondal, Raju
• Is Part Of: ChemistrySelect. Volume 2:Issue 1(2017)
• Page Start: 389
• Page End: 398
• Publication Date: 2017-01-11
• Subjects: Catalysis -- Controlled synthesis -- Cr(VI)sequestration -- Hg(II) Sensing -- Silver nanoparticles; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201600998
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: We report herein a novel gel‐based method of generating silver nanoparticles (AgNPs) for various applications. An unorthodox pyridyl‐pyrazole basedchelatinglow molecular mass gelator was used for controlled synthesis of multifunctional AgNPs. The resultant fiber networks of gel itself act as template for AgNPs formation when a threshold concentration of Ag salts is exceeded. It is noteworthy here that existence of such threshold condition for AgNP formation is strategically important but under explored. The as‐synthesized AgNPs exhibit efficient catalytic activity of the reduction of 4‐nitrophenol and Methylene blue.The as‐synthesized AgNPs shows highly selective sensing ability of toxic Hg 2+ ion in ppm level. Furthermore, our system also offers a unique two‐in‐one environmental remediation through sequestration‐cum‐reduction of toxic hexavalent Cr. Abstract : A novel gel‐based technique was exploited to generate templated AgNPs using a pyridyl‐pyrazole based bis‐amide ligand. The as‐synthesized AgNPs showed efficient catalysis for the reduction of 4‐nitro phenol and Methylene blue. The AgNPs showed highly selective sensing ability of toxic Hg 2+ ion in ppm level. Furthermore, our system also offers a unique two‐in‐one environmental remediation through sequestration‐cum‐reduction of toxic hexavalent Cr.