Abstract
In this work, natural sunlight successfully induced the deposition of gold (Au), silver (Ag), and palladium (Pd) nanoparticles (NPs) with 17.10, 9.07, and 12.70 wt% onto the surface of graphitic carbon nitride (g-C3N4). The photocatalytic evaluation was carried out by adopting Bisphenol A (BPA) as a pollutant under natural sunlight irradiation. The presence of noble metals was confirmed by EDX, HRTEM, and XPS analysis. The deposition of Ag NPs (7.9 nm) resulted in the degradation rate which was 2.15-fold higher than pure g-C3N4 due to its relatively small particle size, contributing to superior charge separation efficiency. Au/g-C3N4 unveiled inferior photoactivity because the LSPR phenomenon provided two pathways for electron transfer between Au NPs and g-C3N4 further diminished the performance. The improved degradation lies crucially on the particle size and Schottky barrier formation at the interface of M/g-C3N4 (M=Au, Ag, and Pd) but not the visible light harvesting properties. The mechanism insight revealed the holes (h+) and superoxide radical (•O2−) radical actively involved in photocatalytic reaction for all composites.
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References
Bai X, Zong R, Li C, Liu D, Liu Y, Zhu Y (2014) Enhancement of visible photocatalytic activity via Ag@C3N4 core–shell plasmonic composite. Appl Catal B 147:82–91. https://doi.org/10.1016/j.apcatb.2013.08.007
Chang C, Fu Y, Hu M, Wang C, Shan G, Zhu L (2013) Photodegradation of bisphenol A by highly stable palladium-doped mesoporous graphite carbon nitride (Pd/mpg-C3N4) under simulated solar light irradiation. Appl Catal B Environ 142:553–560. https://doi.org/10.1016/j.apcatb.2013.05.044
Chang S, Xie A, Chen S, Xiang J (2014) Enhanced photoelectrocatalytic oxidation of small organic molecules by gold nanoparticles supported on carbon nitride. J Electroanal Chem 719:86–91. https://doi.org/10.1016/j.jelechem.2014.01.026
Cheng N, Tian J, Liu Q, Ge C, Sun X, Qusti A, Asiri A, Al-Youbi A (2013) Au-nanoparticle-loaded graphitic carbon nitride nanosheets: green photocatalytic synthesis and application toward the degradation of organic pollutants. ACS Appl Mater Interfaces 5(15):6815–6819. https://doi.org/10.1021/am401802r
Dai H, Gao X, Liu E, Yang Y, Hou W, Kang L, Fan J, Hu X (2013) Synthesis and characterization of graphitic carbon nitride sub-microspheres using microwave method under mild condition. Diam Relat Mater 38:109–117. https://doi.org/10.1016/j.diamond.2013.06.012
Dong G, Zhang Y, Pan Q, Qiu J (2014) A fantastic graphitic carbon nitride (g-C3N4) material: electronic structure, photocatalytic and photoelectronic properties. J Photochem Photobiol C 20:33–50. https://doi.org/10.1016/j.jphotochemrev.2014.04.002
Fagan R, McCormack DE, Hinder SJ, Pillai SC (2016) Photocatalytic properties of g-C3N4–TiO2 heterojunctions under UV and visible light conditions. Mater 9(4):286. https://doi.org/10.3390/ma9040286
Fu Y, Huang T, Zhang L, Zhu J, Wang X (2015) Ag/g-C3N4 catalyst with superior catalytic performance for the degradation of dyes: a borohydride-generated superoxide radical approach. Nanoscale 7(32):13723–13733. https://doi.org/10.1039/c5nr03260a
Gao G, Jiao Y, Waclawik ER, Du A (2016) Single atom (Pd/Pt) supported on graphitic carbon nitride as an efficient photocatalyst for visible-light reduction of carbon dioxide. J Am Chem Soc 138(19):6292–6297. https://doi.org/10.1021/jacs.6b02692
Ge L, Han C, Liu J (2011a) Novel visible light-induced g-C3N4/Bi2WO6 composite photocatalysts for efficient degradation of methyl orange. Appl Catal B 108:100–107. https://doi.org/10.1016/j.catcom.2015.07.015
Ge L, Han C, Liu J, Li Y (2011b) Enhanced visible light photocatalytic activity of novel polymeric g-C3N4 loaded with Ag nanoparticles. Appl Catal A 409:215–222. https://doi.org/10.1016/j.apcata.2011.10.006
Giannini V, Fernández-Domínguez AI, Heck SC, Maier SA (2011) Plasmonic nanoantennas: fundamentals and their use in controlling the radiative properties of nanoemitters. Chem Rev 111(6):3888–3912. https://doi.org/10.1021/cr1002672
Han C, Wu L, Ge L, Li Y, Zhao Z (2015) AuPd bimetallic nanoparticles decorated graphitic carbon nitride for highly efficient reduction of water to H2 under visible light irradiation. Carbon 92:31–40. https://doi.org/10.1016/j.carbon.2015.02.070
Jiang Z, Ouyang Q, Peng B, Zhang Y, Zan L (2014) Ag size-dependent visible-light-responsive photoactivity of Ag–TiO2 nanostructure based on surface plasmon resonance. J Mater Chem A 2(46):19861–19866. https://doi.org/10.1039/C4TA03831B
Jiang J, Yu J, Cao S (2016) Au/PtO nanoparticle-modified g-C3N4 for plasmon-enhanced photocatalytic hydrogen evolution under visible light. J Colloid Interface Sci 461:56–63. https://doi.org/10.1016/j.jcis.2015.08.076
Jin J, Liang Q, Ding C, Li Z, Xu S (2017) Simultaneous synthesis-immobilization of Ag nanoparticles functionalized 2D g-C3N4 nanosheets with improved photocatalytic activity. J Alloys Compd 691:763–771. https://doi.org/10.1016/j.jallcom.2016.08.302
Lacerda AM, Larrosa I, Dunn S (2015) Plasmon enhanced visible light photocatalysis for TiO2 supported Pd nanoparticles. Nanoscale 7(29):12331–12335. https://doi.org/10.1039/C5NR03659C
Lam SM, Sin JC, Mohamed AR (2016) Review: a review on photocatalytic application of g-C3N4/semiconductor (CNS) nanocomposites towards the erasure of dyeing wastewater. Mater Sci Semicond Process 47:62–84. https://doi.org/10.1016/j.mssp.2016.02.019
Lang J, Liu M, Su Y, Yan L, Wang X (2015) Fabrication of the heterostructured CsTaWO6/au/g-C3N4 hybrid photocatalyst with enhanced performance of photocatalytic hydrogen production from water. Appl Surf Sci 358:252–260. https://doi.org/10.1016/j.apsusc.2015.08.150
Leong KH, Gan BL, Ibrahim S, Saravanan P (2014) Synthesis of surface plasmon resonance (SPR) triggered Ag/TiO2 photocatalyst for degradation of endocrine disturbing compounds. Appl Surf Sci 319:128–135. https://doi.org/10.1016/j.apsusc.2014.06.153
Leong KH, Chu HY, Ibrahim S, Saravanan P (2015a) Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity. Beilstein J Nanotechnol 6(1):428–437. https://doi.org/10.3762/bjnano.6.43
Leong KH, Liu SL, Sim LC, Saravanan P, Jang M, Ibrahim S (2015b) Surface reconstruction of titania with g-C3N4 and Ag for promoting efficient electrons migration and enhanced visible light photocatalysis. Appl Surf Sci 358:370–376. https://doi.org/10.1016/j.apsusc.2015.06.184
Li Y, Yang L, Dong G, Ho W (2015a) Mechanism of NO photocatalytic oxidation on g-C3N4 was changed by Pd-QDs modification. Mol 21(1):36. https://doi.org/10.3390/molecules21010036
Li Z, Wang J, Zhu K, Ma F, Meng A (2015b) Ag/g-C3N4 composite nanosheets: synthesis and enhanced visible photocatalytic activities. Mater Lett 145:167–170. https://doi.org/10.1016/j.matlet.2015.01.058
Liang S, Xia Y, Zhu S, Zheng S, He Y, Bi J, Liu M, Wu L (2015) Au and Pt co-loaded g-C3N4 nanosheets for enhanced photocatalytic hydrogen production under visible light irradiation. Appl Surf Sci 358:304–312. https://doi.org/10.1016/j.apsusc.2015.08.035
Liu G, Niu P, Sun C, Smith SC, Chen Z, Lu GQ, Cheng HM (2010) Unique electronic structure induced high photoreactivity of sulfur-doped graphitic C3N4. J Am Chem Soc 132(33):11642–11648. https://doi.org/10.1021/ja103798k
Liu S, Sun H, O’Donnell K, Ang H, Tade M, Wang S (2016) Metal-free melem/g-C3N4 hybrid photocatalysts for water treatment. J Colloid Interface Sci 464:10–17. https://doi.org/10.1016/j.jcis.2015.11.003
Lu Z, Song W, Ouyang C, Wang H, Zeng D, Xie C (2017) Enhanced visible-light photocatalytic performance of highly-dispersed Pt/g-C3N4 nanocomposites by one-step solvothermal treatment. RSC Adv 7(53):33552–33557. https://doi.org/10.1039/c7ra04931e
Mamba G, Mishra AK (2016) Graphitic carbon nitride (g-C3N4) nanocomposites: a new and exciting generation of visible light driven photocatalysts for environmental pollution remediation. Appl Catal B Environ 198:347–377. https://doi.org/10.1016/j.apcatb.2016.05.052
Mohapatra SK, Kondamudi N, Banerjee S, Misra M (2008) Functionalization of self-organized TiO2 nanotubes with Pd nanoparticles for photocatalytic decomposition of dyes under solar light illumination. Langmuir 24(19):11276–11281. https://doi.org/10.1021/la801253f
Murdoch M, Waterhouse GIN, Nadeem MA, Metson JB, Keane MA, Howe RF, Llorca J, Idriss H (2011) The effect of gold loading and particle size on photocatalytic hydrogen production from ethanol over Au/TiO2 nanoparticles. Nat Chem 3(6):489–492. https://doi.org/10.1038/NCHEM.1048
Neațu S, Maciá-Agulló JA, Garcia H (2014) Solar light photocatalytic CO2 reduction: general considerations and selected bench-mark photocatalysts. Int J Mol Sci 15(4):5246–5262. https://doi.org/10.3390/ijms15045246
Ni Z, Dong F, Huang H, Zhang Y (2016) New insights into how Pd nanoparticles influence the photocatalytic oxidation and reduction ability of g-C3N4 nanosheets. Catal Sci Technol 6(16):6448–6458. https://doi.org/10.1039/c6cy00580b
Ong WJ, Tan LL, Chai SP, Yong ST (2015) Heterojunction engineering of graphitic carbon nitride (g-C3N4) via Pt loading with improved daylight-induced photocatalytic reduction of carbon dioxide to methane. Dalton Trans 44(3):1249–1257. https://doi.org/10.1039/C4DT02940B
Pawar R, Kang S, Lee C, Ahn S (2015a) Gold nanoparticle modified graphitic carbon nitride/multi-walled carbon nanotube (g-C3N4/CNTs/Au) hybrid photocatalysts for effective water splitting and degradation. RSC Adv 5(31):24281–24292. https://doi.org/10.1039/C4RA15560B
Pawar RC, Pyo Y, Ahn SH, Lee CS (2015b) Photoelectrochemical properties and photodegradation of organic pollutants using hematite hybrids modified by gold nanoparticles and graphitic carbon nitride. Appl Catal B Environ 176:654–666. https://doi.org/10.1016/j.apcatb.2015.04.045
Peng S, McMahon JM, Schatz GC, Gray SK, Sun Y (2010) Reversing the size-dependence of surface plasmon resonances. Proc Natl Acad Sci 107(33):14530–14534. https://doi.org/10.1073/pnas.1007524107
Qin J, Huo J, Zhang P, Zeng J, Wang T, Zeng H (2016) Improving the photocatalytic hydrogen production of Ag/g-C3N4 nanocomposites by dye-sensitization under visible light irradiation. Nanoscale 8(4):2249–2259. https://doi.org/10.1039/C5NR06346A
Rosenfeldt EJ, Linden KG (2004) Degradation of endocrine disrupting chemicals bisphenol A, ethinyl estradiol, and estradiol during UV photolysis and advanced oxidation processes. Environ Sci Technol 38(20):5476–5483. https://doi.org/10.1021/es035413p
Samanta S, Martha S, Parida K (2014) Facile synthesis of Au/g-C3N4 nanocomposites: an inorganic/organic hybrid plasmonic photocatalyst with enhanced hydrogen gas evolution under visible-light irradiation. Chem Cat Chem 6(5):1453–1462. https://doi.org/10.1002/cctc.201300949
Sim LC, Wong JL, Hak CH, Tai JY, Leong KH, Saravanan P (2018) Sugarcane juice derived carbon dot–graphitic carbon nitride composites for bisphenol A degradation under sunlight irradiation. Beilstein J Nanotechnol 9:353–363. https://doi.org/10.3762/bjnano.9.35
Sin JC, Lam SM, Mohamed AR, Lee KT (2012) Degrading endocrine disrupting chemicals from wastewater by TiO2 photocatalysis: a review. Int J Photoenergy 2012:1–23. https://doi.org/10.1155/2012/185159
Su X, Vinu A, Aldeyab SS, Zhong L (2015) Highly uniform Pd nanoparticles supported on g-C3N4 for efficiently catalytic Suzuki–Miyaura reactions. Catal Lett 145(7):1388–1395. https://doi.org/10.1007/s10562-015-1537-0
Xie L, Ai Z, Zhang M, Sun R, Zhao W (2016) Enhanced hydrogen evolution in the presence of plasmonic au-photo-sensitized g-C3N4 with an extended absorption Spectrum from 460 to 640 nm. PLoS One 11(8):e0161397. https://doi.org/10.1371/journal.pone.0161397
Xue J, Ma S, Zhou Y, Zhang Z, He M (2015a) Facile photochemical synthesis of Au/Pt/g-C3N4 with plasmon-enhanced photocatalytic activity for antibiotic degradation. ACS Appl Mater Interfaces 7(18):9630–9637. https://doi.org/10.1021/acsami.5b01212
Xue J, Ma S, Zhou Y, Wang Q (2015b) Au-loaded porous graphitic C3N4/graphene layered composite as a ternary plasmonic photocatalyst and its visible-light photocatalytic performance. RSC Adv 5(107):88249–88257. https://doi.org/10.1039/c5ra17719g
Yan H, Chen Y, Xu S (2012) Synthesis of graphitic carbon nitride by directly heating sulfuric acid treated melamine for enhanced photocatalytic H2 production from water under visible light. Int J Hydrog Energy 37(1):125–133. https://doi.org/10.1016/j.ijhydene.2011.09.072
Yang N, Li G, Wang W, Yang X, Zhang WF (2011) Photophysical and enhanced daylight photocatalytic properties of N-doped TiO2/g-C3N4 composites. J Phys Chem Solids 72(11):1319–1324. https://doi.org/10.1016/j.jpcs.2011.07.028
Yang Y, Guo Y, Liu F, Yuan X, Guo Y, Zhang S, Guo W, Huo M (2013) Preparation and enhanced visible-light photocatalytic activity of silver deposited graphitic carbon nitride plasmonic photocatalyst. Appl Catal B Environ 142:828–837. https://doi.org/10.1016/j.apcatb.2013.06.026
Yu J, Wang K, Xiao W, Cheng B (2014) Photocatalytic reduction of CO2 into hydrocarbon solar fuels over g-C3N4–Pt nanocomposite photocatalysts. Phys Chem Chem Phys 16(23):11492–11501. https://doi.org/10.1039/c4cp00133h
Yuan B, Wei J, Hu T, Yao H, Jiang Z, Fang Z, Chu Z (2015) Simple synthesis of g-C3N4/rGO hybrid catalyst for the photocatalytic degradation of rhodamine B. J Catal 36(7):1009–1016. https://doi.org/10.1016/S1872-2067(15)60844-0
Zang Y, Li L, Li X, Lin R, Li G (2014) Synergistic collaboration of g-C3N4/SnO2 composites for enhanced visible-light photocatalytic activity. Chem Eng J 246:277–286. https://doi.org/10.1016/j.cej.2014.02.068
Zeng Z, Li K, Wei K, Dai Y, Yan L, Guo H, Luo X (2017) Fabrication of highly dispersed platinum-deposited porous g-C3N4 by a simple in situ photoreduction strategy and their excellent visible light photocatalytic activity toward aqueous 4-fluorophenol degradation. Chin J Catal 38(1):29–38. https://doi.org/10.1016/S1872-2067(16)62589-5
Zhang M, Xu J, Zong R, Zhu Y (2014) Enhancement of visible light photocatalytic activities via porous structure of g-C3N4. Appl Catal B Environ 147:229–235. https://doi.org/10.1016/j.apcatb.2013.09.002
Zhang H, Zhao L, Geng F, Guo LH, Wan B, Yang Y (2016) Carbon dots decorated graphitic carbon nitride as an efficient metal-free photocatalyst for phenol degradation. Appl Catal B Environ 180:656–662. https://doi.org/10.1016/j.apcatb.2015.06.056
Zhao W, Xie L, Zhang M, Ai Z, Xi H, Li Y, Shi Q, Chen J (2016) Enhanced photocatalytic activity of all-solid-state g-C3N4/Au/P25 Z-scheme system for visible-light-driven H2 evolution. Int J Hydrog Energy 41:6277–6287. https://doi.org/10.1016/j.ijhydene.2016.02.148
Zhou S, Liu Y, Li J, Wang Y, Jiang G, Zhao Z, Wang D, Duan A, Liu J, Wei Y (2014) Facile in situ synthesis of graphitic carbon nitride (g-C3N4)-N-TiO2 heterojunction as an efficient photocatalyst for the selective photoreduction of CO2 to CO. Appl Catal B Environ 158:20–29. https://doi.org/10.1016/j.apcatb.2014.03.037
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This work was supported by the Universiti Tunku Abdul Rahman Research Fund (IPSR/RMC/UTARRF/2017-C1/S04) and (IPSR/RMC/UTARRF/2016-C2/L05).
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Hak, C.H., Sim, L.C., Leong, K.H. et al. M/g-C3N4 (M=Ag, Au, and Pd) composite: synthesis via sunlight photodeposition and application towards the degradation of bisphenol A. Environ Sci Pollut Res 25, 25401–25412 (2018). https://doi.org/10.1007/s11356-018-2632-8
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DOI: https://doi.org/10.1007/s11356-018-2632-8