TY - JOUR
T1 - Transformation of aromatic dyes using green synthesized silver nanoparticles
AU - Borase, Hemant P.
AU - Patil, Chandrashekhar D.
AU - Salunkhe, Rahul B.
AU - Suryawanshi, Rahul K.
AU - Salunke, Bipinchandra K.
AU - Patil, Satish V.
N1 - Funding Information:
Acknowledgments Hemant P. Borase thankful to Department of Science and Technology for awarding INSPIRE fellowship [Grant File No. DST/INSPIRE Fellowship/2011(149)], Chandrashekhar D. Patil is thankful to Council of Scientific and Industrial Research [Ref: 09/728 (0028)/2012-EMR-I] for the award of senior research fellowship. Authors are thankful to Kamalakar P. Nandre for help in possible mechanism of dyes degradation and SAIF, Indian Institute of Technology, Bombay, India for TEM analysis.
Publisher Copyright:
© 2014 Springer-Verlag Berlin Heidelberg.
PY - 2014/8/1
Y1 - 2014/8/1
N2 - Nowadays, increasing use of nanoproducts in area of human and environmental applications raises concern about safety aspects of nanoparticles synthesized using traditional physicochemical methods. Silver nanoparticles (AgNPs) synthesis at ambient parameters using latex of medicinally important plant Jatropha gossypifolia (J. gossypifolia) is reported in the present study. Potential of AgNPs in degradation of methylene blue and eosin B was also evaluated. Rapid formation of stable AgNPs was analyzed by visual color change from colorless to yellow-red after addition of latex in AgNO3 solution and by characteristic surface plasmon resonance (SPR) peak at 430 nm in UV-Vis spectroscopy. FT-IR analysis, protein coagulation test showed capping of proteins, flavonoids, terpenoids and polyphenols of latex on surface of AgNPs. FE-SEM, HR-TEM analysis revealed spherical shape of AgNPs. Narrow size range of AgNPs (5-40 nm) observed in HR-TEM analysis. EDS analysis confirms the presence of elemental silver while XRD revealed crystalline nature of AgNPs. Zeta potential of -21.4 mV indicates high stability of AgNPs. Effects of different parameters (pH, temperature, incubation time) on nanosynthesis were studied in the present study. Dye reduction studies were performed using UV-Vis spectroscopy, TLC, FT-IR and HPLC analysis showing decreased absorbance maxima of both dyes with respect to time, change in R f values, changes in wave number, transmittance, and retention time of dyes after AgNPs addition. The rate constant for methylene blue and eosin B reduction by AgNPs was found to be 0.062 and 0.022 min-1.
AB - Nowadays, increasing use of nanoproducts in area of human and environmental applications raises concern about safety aspects of nanoparticles synthesized using traditional physicochemical methods. Silver nanoparticles (AgNPs) synthesis at ambient parameters using latex of medicinally important plant Jatropha gossypifolia (J. gossypifolia) is reported in the present study. Potential of AgNPs in degradation of methylene blue and eosin B was also evaluated. Rapid formation of stable AgNPs was analyzed by visual color change from colorless to yellow-red after addition of latex in AgNO3 solution and by characteristic surface plasmon resonance (SPR) peak at 430 nm in UV-Vis spectroscopy. FT-IR analysis, protein coagulation test showed capping of proteins, flavonoids, terpenoids and polyphenols of latex on surface of AgNPs. FE-SEM, HR-TEM analysis revealed spherical shape of AgNPs. Narrow size range of AgNPs (5-40 nm) observed in HR-TEM analysis. EDS analysis confirms the presence of elemental silver while XRD revealed crystalline nature of AgNPs. Zeta potential of -21.4 mV indicates high stability of AgNPs. Effects of different parameters (pH, temperature, incubation time) on nanosynthesis were studied in the present study. Dye reduction studies were performed using UV-Vis spectroscopy, TLC, FT-IR and HPLC analysis showing decreased absorbance maxima of both dyes with respect to time, change in R f values, changes in wave number, transmittance, and retention time of dyes after AgNPs addition. The rate constant for methylene blue and eosin B reduction by AgNPs was found to be 0.062 and 0.022 min-1.
KW - Catalytic activity
KW - J. gossypifolia
KW - Methylene blue
KW - Silver nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=84925883298&partnerID=8YFLogxK
U2 - 10.1007/s00449-014-1142-4
DO - 10.1007/s00449-014-1142-4
M3 - Article
C2 - 24525834
AN - SCOPUS:84925883298
SN - 1615-7591
VL - 37
SP - 1695
EP - 1705
JO - Bioprocess and Biosystems Engineering
JF - Bioprocess and Biosystems Engineering
IS - 8
ER -