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Experimental and theoretical study of lead sulfide nanocrystals attached to nitrogen-doped carbon nanotubes

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2023, 33(1), pp.147-154
  • DOI : 10.1007/s42823-022-00411-0
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : June 15, 2022
  • Accepted : September 14, 2022
  • Published : February 1, 2023

Rebollo-Plata B. 1 Sampedro M. P. 2 Gómez-Espinoza M. G. 3 Guzmán-Altamirano M. 1 Cabal-Velarde J. G. 1 Portillo-Moreno O. 4 Lobo-Guerrero A. 5 López-Fuentes M. 6 Morales-Luckie Raúl A. 7

1Tecnológico Nacional de México-Instituto Tecnológico Superior de Irapuato, Carr. Irapuato-Silao Km 12.5, 36821, Irapuato, Guanajuato, México
2Facultad de Ingeniería Química BUAP, Av. San Claudio y 18 Sur, Col. San Manuel Ciudad Universitaria, 72570, Puebla, Puebla, México
3Departamento de Ingeniería Agroindustrial, Universidad Politécnica de
4Laboratorio de Materiales Sci., Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, 72570, Puebla, Puebla, México
5Área Académica de Ciencias de la Tierra y Materiales, Universidad Autónoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo km 4.5, 42039, Mineral de La Reforma, Hidalgo, México
6Complejo Regional Centro, BUAP, Carretera Castañeda Morelos Km 7.5, El Salado, 75460, Tecamachalco, Puebla, México
7Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, San Cayetano, 50200, Toluca, Estado de México, México

Accredited

ABSTRACT

Lead sulfide (PbS ) nanocrystals anchored on nitrogen-doped multiwalled carbon nanotubes (CNx ) have been synthesized employing an environmentally friendly and inexpensive wet chemistry process. CNx/PbS composites have been examined by scanning electron microscopy, X-ray diffraction and Raman spectroscopy. Theorical ab initio calculations have been developed to determine the samples structural, morphological and optical properties to explain the experimental evidences. The PbS nanoparticles exhibit of 4 nm to 27 nm particle size with a face-centered cubic crystal structure and are homogeneously distributed along the carbon nanotubes. The nitrogen-doped CNTs acts as binding sites for the PbS clusters as ab initio theoretical study suggests.

Citation status

* References for papers published after 2022 are currently being built.