Skip to main content
Journal of Analytical Science and Technology
Fig. 9 | Journal of Analytical Science and Technology

Fig. 9

From: A novel green synthesis and characterization of silver nanoparticles using gum tragacanth and evaluation of their potential catalytic reduction activities with methylene blue and Congo red dyes

Fig. 9

a UV-Vis spectrum of reduction of MB by NaBH4 in the absence of nanocatalysts recorded in 10-min intervals for a period of 100 min at room temperature. b UV-Vis spectrum for the catalytic reduction of MB by NaBH4 in presence of silver nanocolloids in 1-min intervals for a period of 12 min at room temperature. c Plot of ln(A 0/A t ) against time for pseudo-first-order reaction for the catalytic reduction of MB with excess NaBH4 in the presence of GT-capped AgNPs. d UV-Vis spectrum of reduction of CR by NaBH4 in the absence of nanocatalysts recorded in 10-min intervals for a period of 120 min at 25 °C. e UV-Vis absorption spectrum of nanocatalyst (AgNPs)-assisted reduction of CR by NaBH4 in 1-min intervals for a period of 15-min room temperature. f Plot of ln(A 0/A t ) against time for pseudo-first-order reaction for the catalytic reduction of MB with excess NaBH4 in the presence of GT-capped AgNPs

Back to article page