title: Catalytic degradation of organic dyes using biosynthesized silver nanoparticles.
abstract: The green synthesis of metallic nanoparticles paved the way to improve and protect the environment by decreasing the use of toxic chemicals and eliminating biological risks in biomedical applications. Plant mediated synthesis of metal nanoparticles is gaining more importance owing to its simplicity, rapid rate of synthesis of nanoparticles and eco-friendliness. The present article reports an environmentally benign and unexploited method for the synthesis of silver nanocatalysts using Trigonella foenum-graecum seeds, which is a potential source of phytochemicals. The UV-visible absorption spectra of the silver samples exhibited distinct band centered around 400-440 nm. The major phytochemicals present in the seed extract responsible for the formation of silver nanocatalysts are identified using FTIR spectroscopy. The report emphasizes the effect of the size of silver nanoparticles on the degradation rate of hazardous dyes, methyl orange, methylene blue and eosin Y by NaBH4. The efficiency of silver nanoparticles as a promising candidate for the catalysis of organic dyes by NaBH4 through the electron transfer process is established in the present study.
authors.affiliation: Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015, India.
authors.forename: V K
authors.initials: VK
authors.lastname: Vidhu
authors.forename: Daizy
authors.initials: D
authors.lastname: Philip
mesh_terms: D001391:Azo Compounds / Q000378:metabolism*; D002384:Catalysis; D004396:Coloring Agents / Q000378:metabolism*; D004801:Eosine Yellowish-(YS) / Q000378:metabolism*; D053768:Metal Nanoparticles / Q000737:chemistry*; D008751:Methylene Blue / Q000378:metabolism*; D012639:Seeds / Q000378:metabolism; D012834:Silver / Q000737:chemistry; D012835:Silver Nitrate / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013194:Staining and Labeling; D029910:Trigonella / Q000378:metabolism
chemical_list: D001391:Azo Compounds; D004396:Coloring Agents; D012834:Silver; C100258:methyl orange; D012835:Silver Nitrate; D008751:Methylene Blue; D004801:Eosine Yellowish-(YS)
keywords: Catalysis; Eosin Y; Methyl orange; Methylene blue; Silver nanoparticles; Trigonella foenum-graecum