Jump to Main Content
Kinetic study of gold nanoparticle mediated photocatalytic degradation of Victoria blue
- Jishma, P., Roshmi, Thomas, Snigdha, S., Radhakrishnan, E.K.
- 3 Biotech 2018 v.8 no.2 pp. 97
- Vigna unguiculata, cost effectiveness, dyes, models, nanogold, photocatalysis, toxicity
- In the study, biogenic gold nanoparticles (AuNPs) were used for the photocatalytic degradation of triphenylmethane dyes Victoria blue B (VBB) and R (VBR). The process was found to result in an approximate degradation of 65 and 52%, respectively, for VBB and VBR within a period of 8 h. The relative rate of photocatalytic degradation of VBB and VBR was identified to be 0.0195 ± 0.0031/min and 0.0295 ± 0.0025/min, respectively, by using the Langmuir–Hinshelwood model. By using the Vigna unguiculata model system, the degradation products were demonstrated to have non-toxic effect. Moreover, the less toxic nature of AuNPs used for dye removal highlights its feasibility for large-scale application. Hence, the AuNPs-based photocatalytic dye degradation as described in the study is cost-effective, rapid and environment-friendly.