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Highly Porous Multiwalled Carbon Nanotube-Foam Composite for Batch Adsorption Performances of Dyes.
Mon, Phyu Phyu; Cho, Phyu Phyu; Rangappa, Harsha S; Dobhal, Saiyam; Ghosal, Partha; Madras, Giridhar; Ch, Subrahmanyam.
Afiliación
  • Mon PP; Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy Telangana 502285, India.
  • Cho PP; Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy Telangana 502285, India.
  • Rangappa HS; Center for Interdisciplinary Programs, Indian Institute of Technology Hyderabad, Kandi, Sangareddy Telangana 502285, India.
  • Dobhal S; Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy Telangana 502285, India.
  • Ghosal P; Defence Metallurgical Research Laboratory, DRDO, Hyderabad 500058, India.
  • Madras G; Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Kandi Telangana 502285, India.
  • Ch S; Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy Telangana 502285, India.
J Phys Chem B ; 128(34): 8223-8237, 2024 Aug 29.
Article en En | MEDLINE | ID: mdl-39153214
ABSTRACT
Treatment of dye pollutants prior to their release into the environment remains a formidable challenge, persisting as a longstanding issue. This study focuses on the development of a multiwalled carbon nanotube-foam (MWCNT-foam) composite through low-temperature chemical fusion (LTFC), resulting in a composite with a remarkably high accessible surface area (>475 m2 g-1). The MWCNT-foam composite exhibits a three-dimensional porous structure and demonstrates a notable affinity for organic dye adsorption. The efficacy of this composite was evaluated against various cationic dyes such as Methylene blue (MB) and Crystal Violet (CV) as well as anionic dyes such as Congo red (CR) and Eriochrome black T (EB), and the composite showed removal rates exceeding 99%. Furthermore, the study delved into the impact of the initial dye concentration, adsorbent dosage, kinetics, and other factors on the performance of the MWCNT-foam composite. The adsorption process achieved equilibrium in 10 min and strongly correlated with the pseudo-second-order kinetic model and Langmuir isotherm. The maximum adsorption capacity of MWCNT-foam for MB, CV, CR, and EB was found to be 168.63, 147.49, 99.50, and 93.11 mg g-1, respectively. In order to showcase the potential of this material for continuous adsorption, a specialized cartridge was designed and employed to treat dye solutions, demonstrating the feasibility of continuous mode adsorption.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Chem B Asunto de la revista: QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Chem B Asunto de la revista: QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Estados Unidos