Synthesis of bimetallic core/shell nanoparticles via pulse laser ablation and their catalytic effectiveness in dye degradation

被引:1
|
作者
Siddiq, Muhammad [1 ]
Rehman, Zia Ur [2 ]
Rasheed, Muhammad Asim [1 ]
Ul Hassan, Syed Mujtaba [3 ]
Qayyum, Hamza [4 ]
Mehmood, Sultan [2 ]
Qayyum, Abdul [2 ]
机构
[1] Pakistan Inst Engn & Appl Sci PIEAS, Dept Phys & Appl Math, Islamabad 45650, Pakistan
[2] Pakistan Inst Nucl Sci & Technol, Phys Div, Islamabad 45650, Pakistan
[3] Pakistan Inst Engn & Appl Sci PIEAS, Dept Met & Mat Engn, Nilore 45650, Pakistan
[4] COMSATS Univ Islamabad, Dept Phys, Laser Matter Interact Lab, Pk Rd, Islamabad 45550, Pakistan
关键词
bimetallic core/shell nanoparticles; laser ablation; catalytic performance; AG ALLOY NANOPARTICLES; AU; GOLD;
D O I
10.2351/7.0001347
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this study, a simple two step method is employed to sequentially synthesize bimetallic core/shell nanoparticles (NPs). In the first step, pure mono Au and Ag NPs are prepared via 1064 nm pulsed laser ablations in liquid. In the second step, the Au/Ag substrate immersed in the Au/Ag colloidal solution is exposed to the nanosecond laser at 1064 nm wavelength using various laser energies and ablation periods. The crystalline phase and morphology of the bimetallic core/shell NPs (Au/Ag, Ag/Au) are examined by x-ray diffraction and scanning electron microscopy, respectively. The results showed that highly crystalline, well-dispersed spherical monometallic and bimetallic core/shell NPs can be synthesized via pulse laser ablation in liquid. The average diameter of Au, Ag, Au/Ag, and Ag/Au NPs is 34, 40, 58, and 43 nm, respectively. With increasing laser energy, the plasmonic absorption peak of Au NPs redshifts and that of Ag NPs blueshifts. For core/shell, two plasmonic peaks were observed, each of which shifted with increasing ablation time for shell material. Organic dyes with concentrations of 10 (- 5) M of methylene-blue with NaBH4 of 0.05M and methylene-orange with NaBH4 of 0.1M are used to examine the catalytic performance of the NPs. The core/shell NPs performed better than monometallic NPs. In particular, the catalytic degradation efficiency of Au/Ag and Ag/Au NPs is approximately 90% in significantly less time than monometallic Au and Ag NPs.
引用
收藏
页数:10
相关论文
共 50 条
  • [21] Synthesis of Core-Shell (Pd-Au) Bimetallic Nanoparticles in Microemulsions
    Larios, Eduardo
    Calderon, Lilian
    Guerrero, Karen
    Pinedo, Emanuel
    Maldonado, Amir
    Tanori, Judith
    JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2012, 33 (09) : 1360 - 1367
  • [22] Synthesis of Copper-Coated CuS Core-Shell Nanoparticles by CBD for Rhodamine Blue Dye Degradation
    Kumar, Varun
    Sharma, Himanshu
    Yadav, Munish Kumar
    Kumar, Sarvendra
    Rana, Devendra Kumar
    Singh, Vidya Nand
    Surbhi
    JOURNAL OF ELECTRONIC MATERIALS, 2025, 54 (01) : 499 - 509
  • [23] Sonochemical synthesis of Au-Ag core-shell bimetallic nanoparticles
    Anandan, Sambandam
    Grieser, Franz
    Ashokkumar, Muthupandian
    JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (39): : 15102 - 15105
  • [24] Catalytic Properties of Bimetallic Au@Ag Core@Shell Nanoparticles; Effect of Shell thickness.
    Eisa, Wael H.
    Al-Ashkar, Emad
    El-Mossalamy, S. M.
    Ali, Safaa S. M.
    RESEARCH JOURNAL OF PHARMACEUTICAL BIOLOGICAL AND CHEMICAL SCIENCES, 2016, 7 (06): : 1546 - 1554
  • [25] A Review of Bimetallic and Monometallic Nanoparticle Synthesis via Laser Ablation in Liquid
    Nyabadza, Anesu
    Vazquez, Mercedes
    Brabazon, Dermot
    CRYSTALS, 2023, 13 (02)
  • [26] Formation of core-shell nanoparticles by laser ablation of copper and brass in liquids
    Kazakevich, PV
    Simakin, AV
    Voronov, VV
    Shafeev, GA
    Starikov, D
    Bensaoula, A
    FROM NANOPOWDERS TO FUNCTIONAL MATERIALS, 2005, 106 : 23 - 26
  • [27] Bimetallic Ag@Pt core-shell nanoparticles and their catalytic activity by a green approach
    Mares-Briones, F.
    Barragan-Mares, O.
    Lopez-Miranda, J. L.
    Esparza, R.
    Rosas, G.
    MATERIALS RESEARCH EXPRESS, 2019, 6 (08)
  • [28] Innovative Synthesis of Au@WO3 Core-Shell Nanoparticles via Laser Ablation: Insights into Their Pharmaceutical Properties for Biomedical Applications
    Salim, Evan T.
    Almukhtar, Omar
    Rafeeq, Mayyadah F.
    Rasool, Khetam H.
    Ismail, Raid A.
    Sulaiman, Ghassan M.
    Jabir, Majid S.
    Mahdi, Soror A.
    Jawad, Sabrean F.
    Fakhri, Makram A.
    Qaeed, Motahher A.
    Gopinath, Subash C. B.
    Saimon, Jehan A.
    Mahdi, Rana O.
    PLASMONICS, 2024,
  • [29] Laser synthesis and magnetic properties of monodispersed core–shell nanoparticles
    T. Seto
    K. Koga
    H. Akinaga
    F. Takano
    K. Sakiyama
    M. Hirasawa
    T. Orii
    Applied Physics A, 2004, 79 : 1165 - 1167
  • [30] Plasma-assisted synthesis of gold-silver core-shell nanoparticles and their enhanced catalytic dye degradation and surface enhanced Raman spectroscopy performance
    Ismail, Siddiqa
    Ahmed, W.
    Farooq, Muhammad
    Rehman, N. U.
    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2024, 42 (02):