Hydrothermal synthesis of gold nanoparticles using spider cobweb as novel biomaterial: Application to photocatalytic

• Published in: Chemical physics letters 2020-06, Vol.748, p.137402, Article 137402
• Main Authors: Vinay, S.P., Udayabhanu, Nagaraju, G., Chandrappa, C.P., Chandrasekhar, N.
• Format: Article
• Language: English
• Subjects: Gold nanoparticles; Hydrothermal; Nanocatalyst; Spider cobweb
• ISSN: 0009-2614; 1873-4448
• DOI: 10.1016/j.cplett.2020.137402

[Display omitted] •Gold nanoparticles (Au NPs) have been synthesized using a novel, facile, fast and single step advanced hydrothermal method.•In the synthesis part, we used novel biomaterial: Spider Cobweb as reducing and stabilizing agent.•Au NPs were non-toxic to spider cobweb and are environmentally safe.•They have also shown excellent catalytic activity for the reduction of Rhodamine-B and Methylene blue. In the present study, we have followed the hydrothermal path for the synthesis of gold nanoparticles (Au NPs) from the novel biomaterial spider cobweb, which is a rapid & non-chemical way. The synthesized nanoparticles were thoroughly characterized by XRD, UV–vis, SEM, EDAX and TEM studies used for the photocatalytic dye degradation studies. Here we have used two dyes namely Rh B and MB, Au NPs has shown the good photocatalytic activity, this is due to more sensitive to light and reduces the electron-hole recombination.