Green synthesis of silver nanoparticles and their photocatalytic degradation performance of tetrabromobisphenol A

doi:10.3969/j.issn.0253-2778.2020.07.004

Abstract

Abstract: Silver nanoparticles (AgNPs) could enhance the photocatalytic reaction significantly owing to its surface plasmon resonance (SPR) effect. However, AgNPs are usually unstable without the ligands and their preparation process always requires organic chemicals as the reducing agents. In this work, humic acids (HA), widely existent in environmental water samples, were used as both reductant and ligand for in situ synthesizing and stabilizing AgNPs under simulated sunlight. The results of photocatalytic experiments indicate that the as-prepared AgNPs show excellent activity for the degradation of tetrabromobisphenol A (TBBPA), a typical organic halogenated pollutant in water. With AgNPs generated in the mixture of 1 mg/L HA and 2 mmol/L Ag+, 74.9% TBBPA was degraded in 1 h. This degradation efficiency is much better than that of commercial AgNPs. Through controlling the reaction conditions, neutral pH was found to be beneficial for the degradation of TBBPA, which would lower the requirements of equipments and reaction conditions in practical applications. By the inhabitation test of active species, singlet oxygen (O2), hydroxyl radical (·OH) and superoxide anion (O2·-) generated via the SPR effect of the in situ formed AgNPs under illumination, were simultaneously identified to be the active species in the degradation of TBBPA. Therefore, the AgNPs with high photocatalytic activity are in situ synthesized by using cheap HA under mild conditions, exhibiting potential for applications in photocatalytic degradation of organic pollutants in wastewater.

Key words: silver nanoparticles, green synthesis, humic acids, tetrabromobisphenol A, photocatalytic degradation

CLC Number:

X131

LI Wenjie, YU Shengsong, CHEN Jiejie. Green synthesis of silver nanoparticles and their photocatalytic degradation performance of tetrabromobisphenol A[J]. Journal of University of Science and Technology of China, 2020, 50(7): 894-900.

References

［1］
LINIC S, CHRISTOPHER P, INGRAM D B. Plasmonic-metal nanostructures for efficient conversion of solar to chemical energy[J]. Nature Materials, 2011, 10(12): 911-921.
[2] ATWATER H A, POLMAN A. Plasmonics for improved photovoltaic devices[J]. Nature Materials, 2010, 9(3): 205-213.
[3] CLAVERO C. Plasmon-induced hot-electron generation at nanoparticle/metal-oxide interfaces for photovoltaic and photocatalytic devices[J]. Nature Photonics, 2014, 8(2): 95-103.
[4] XIA X H, ZENG J, OETJEN L K, et al. Quantitative analysis of the role played by poly(vinylpyrrolidone) in seed-mediated growth of Ag nanocrystals[J]. Journal of the American Chemical Society, 2012, 134(3): 1793-1801.
[5] LONG M, BRAME J, QIN F, et al. Phosphate changes effect of humic acids on TiO2 photocatalysis: From inhibition to mitigation of electron-hole recombination[J]. Environmental Science & Technology, 2017, 51(1): 514-521.
[6] JAYALATH S, WU H, LARSEN S C, et al. Surface adsorption of Suwannee River humic acid on TiO2 nanoparticles: A study of pH and particle size[J]. Langmuir, 2018, 34(9): 3136-3145.
[7] YIN Y G, LIU J F, JIANG G B. Sunlight-induced reduction of ionic Ag and Au to metallic nanoparticles by dissolved organic matter[J]. ACS Nano, 2012, 6(9): 7910-7919.
[8] JUNG W K, KOO H C, KIM K W, et al. Antibacterial activity and mechanism of action of the silver ion in Staphylococcus aureus and Escherichia coli[J]. Applied and Environmental Microbiology, 2008, 74(7): 2171-2178.
[9] XIU Z M, MA J, ALVAREZ P J. Differential effect of common ligands and molecular oxygen on antimicrobial activity of silver nanoparticles versus silver ions[J]. Environmental Science & Technology, 2011, 45(20): 9003-9008.
[10] YANG S W, WANG S R, LIU H L, et al. Tetrabromobisphenol A: Tissue distribution in fish, and seasonal variation in water and sediment of Lake Chaohu, China[J]. Environmental Science and Pollution Research, 2012, 19(9): 4090-4096.
[11] WATANABE I, KASHIMOTO T, TATSUKAWA R. Identification of the flame-retardant tetrabromobisphenol-A in the river sediment and the mussel collected in Osaka[J]. Bulletin of Environmental Contamination and Toxicology, 1983, 31(1): 48-52.
[12] OSAKO M, KIM Y J, SAKAI S I. Leaching of brominated flame retardants in leachate from landfills in Japan[J]. Chemosphere, 2004, 57(10): 1571-1579.
[13] JOHNSON-RESTREPO B, ADAMS D H, KANNAN K. Tetrabromobisphenol A (TBBPA) and hexabromocyclododecanes (HBCDs) in tissues of humans, dolphins, and sharks from the United States[J]. Chemosphere, 2008, 70(11): 1935-1944.
[14] CARIOU R, ANTIGNAC J P, ZALKO D, et al. Exposure assessment of French women and their newborns to tetrabromobisphenol-A: Occurrence measurements in maternal adipose tissue, serum, breast milk and cord serum[J]. Chemosphere, 2008, 73(7): 1036-1041.
[15] THOMSEN C, LUNDANES E, BECHER G. Brominated flame retardants in archived serum samples from Norway: A study on temporal trends and the role of age[J]. Environmental Science & Technology, 2002, 36(7): 1414-1418.
[16] ZHANG K L, HUANG J, ZHANG W, et al. Mechanochemical degradation of tetrabromobisphenol A: Performance, products and pathway[J]. Journal of Hazardous Materials, 2012, 243: 278-285.
[17] FENG Y P, COLOSI L M, GAO S X, et al. Transformation and removal of tetrabromobisphenol A from water in the presence of natural organic matter via laccase-catalyzed reactions: Reaction rates, products, and pathways[J]. Environmental Science & Technology, 2013, 47(2): 1001-1008.
[18] SEIN L T, VARNUM J M, JANSEN S A. Conformational modeling of a new building block of humic acid: Approaches to the lowest energy conformer[J]. Environmental Science & Technology, 1999, 33(4): 546-552.
[19] JIN R C, CAO Y W, MIRKIN C A, et al. Photoinduced conversion of silver nanospheres to nanoprisms[J]. Science, 2001, 294(5548): 1901-1903.
[20] DONG T Y, CHEN W T, WANG C W, et al. One-step synthesis of uniform silver nanoparticles capped by saturated decanoate: Direct spray printing ink to form metallic silver films[J]. Physical Chemistry Chemical Physics, 2009, 11(29): 6269-6275.
[21] AGNIHOTRI S, MUKHERJI S, MUKHERJI S. Size-controlled silver nanoparticles synthesized over the range 5-100 nm using the same protocol and their antibacterial efficacy[J]. RSC Advances, 2014, 4(8): 3974-3983.
[22] YU S J, YIN Y G, CHAO J B, et al. Highly dynamic PVP-coated silver nanoparticles in aquatic environments: Chemical and morphology change induced by oxidation of Ag0 and reduction of Ag+[J]. Environmental Science & Technology, 2013, 48(1): 403-411.
[23] ZHANG X, YANG C W, YU H Q, et al. Light-induced reduction of silver ions to silver nanoparticles in aquatic environments by microbial extracellular polymeric substances (EPS)[J]. Water Research, 2016, 106: 242-248.
[24] ZHANG Y N, WANG J Q, CHEN J W, et al. Phototransformation of 2,3-dibromopropyl-2,4,6-tribromophenyl ether (DPTE) in natural waters: Important roles of dissolved organic matter and chloride ion[J]. Environmental Science & Technology, 2018, 52(18): 10490-10499.
[25] GRZECHULSKA J, MORAWSKI A W. Photocatalytic decomposition of azo-dye acid black 1 in water over modified titanium dioxide[J]. Applied Catalysis B: Environmental, 2002, 36(1): 45-51.
[26] LACHHEB H, PUZENAT E, HOUAS A, et al. Photocatalytic degradation of various types of dyes (Alizarin S, Crocein Orange G, Methyl Red, Congo Red, Methylene Blue) in water by UV-irradiated titania[J]. Applied Catalysis B: Environmental, 2002, 39(1): 75-90.
[27] JASSBY D, FARNER BUDARZ J, WIESNER M. Impact of aggregate size and structure on the photocatalytic properties of TiO2 and ZnO nanoparticles[J]. Environmental Science & Technology, 2012, 46(13): 6934-6941.
[28] ADEGBOYEGA N F, SHARMA V K, SISKOVA K, et al. Interactions of aqueous Ag+ with fulvic acids: Mechanisms of silver nanoparticle formation and investigation of stability[J]. Environmental Science & Technology, 2012, 47(2): 757-764.
[29] CHEN Y, HU C, QU J H, et al. Photodegradation of tetracycline and formation of reactive oxygen species in aqueous tetracycline solution under simulated sunlight irradiation[J]. Journal of Photochemistry and Photobiology A: Chemistry, 2008, 197(1): 81-87.
[30] WANG X W, HU X F, ZHANG H, et al. Photolysis kinetics, mechanisms, and pathways of tetrabromobisphenol A in water under simulated solar light irradiation[J]. Environmental Science & Technology, 2015, 49(11): 6683-6690.
[31] LUO S, YANG S G, WANG X D, et al. Reductive degradation of tetrabromobisphenol A over iron-silver bimetallic nanoparticles under ultrasound radiation[J]. Chemosphere, 2010, 79(6): 672-678.

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