Evaluation of the sorption properties of organo/inorganic ms-schiff hybrid sorbents towards metal cations

N. Kuliboeva, J. Uzokov, A. Mukhamadiev, I. Ruziev, N.Q. Mukhamadiev

Samarqand davlat universiteti ilmiy tadqiqotlar axborotnomasi · 2026-yil

Annotatsiya

Mesoporous silica sorbent modified with Schiff base and free Schiff base was synthesized. The sorbent showed high adsorption efficiency towards Cu(II) ions, which was confirmed by structural (FTIR) and equilibrium studies. FTIR analysis revealed the formation of an azomethine (C=N) at 1630÷1650 cm-1 and a subsequent shift of about 10÷15 cm-1 from Cu(II) or Pb(II) coordination, indicating strong N,O-bidentate chelation. The adsorption equilibrium data were well described by Langmuir and Freundlich isotherm models, confirming the favorable adsorption behavior. The Langmuir model was found to have a monolayer chemisorption with a maximum adsorption capacity (qₘₐₓ) of about 60÷65 mg·g-1 for Cu(II) or Pb(II), reflecting the same active sites formed by the immobilized Schiff groups. The high Langmuir affinity constant (KL) indicated strong metal-ligand interactions. Meanwhile, the Freundlich model showed good linearity with 1/n<1, confirming the favorable adsorption on a moderately heterogeneous surface and the possibility of multilayer contributions at high concentrations (up to 200 mg·L-1).

Maqola ma’lumotlari
MualliflarN. Kuliboeva, J. Uzokov, A. Mukhamadiev, I. Ruziev, N.Q. Mukhamadiev
JurnalSamarqand davlat universiteti ilmiy tadqiqotlar axborotnomasi
NashriyotСамарқанд давлат университети
ISSN2091-5446, 2181-1296
Nashr sanasi2026-01-01
Jild1
Son1
Betlar54-64
TilIngliz
Ilmiy sohaKimyo
DOI10.59251/2181-3973.2025.v1.138.1.3755
Indeksga qo‘shilgan2026-09-02

DOI: 10.59251/2181-3973.2025.v1.138.1.3755 · Maqolaning asl sahifasi

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Iqtibos keltirish

APAN. Kuliboeva, J. Uzokov, A. Mukhamadiev, I. Ruziev, & N.Q. Mukhamadiev (2026). EVALUATION OF THE SORPTION PROPERTIES OF ORGANO/INORGANIC MS-SCHIFF HYBRID SORBENTS TOWARDS METAL CATIONS. Samarqand davlat universiteti ilmiy tadqiqotlar axborotnomasi, 1(1), 54-64. https://doi.org/10.59251/2181-3973.2025.v1.138.1.3755
GOST (OAK)N. Kuliboeva va b. EVALUATION OF THE SORPTION PROPERTIES OF ORGANO/INORGANIC MS-SCHIFF HYBRID SORBENTS TOWARDS METAL CATIONS // Samarqand davlat universiteti ilmiy tadqiqotlar axborotnomasi. – 2026. – T. 1, № 1. – P. 54-64. – DOI: 10.59251/2181-3973.2025.v1.138.1.3755.
MLAN. Kuliboeva, J. Uzokov, A. Mukhamadiev, I. Ruziev, and N.Q. Mukhamadiev. “EVALUATION OF THE SORPTION PROPERTIES OF ORGANO/INORGANIC MS-SCHIFF HYBRID SORBENTS TOWARDS METAL CATIONS.” Samarqand davlat universiteti ilmiy tadqiqotlar axborotnomasi, 1(1), 54-64, 2026. https://doi.org/10.59251/2181-3973.2025.v1.138.1.3755
ChicagoN. Kuliboeva, J. Uzokov, A. Mukhamadiev, I. Ruziev, and N.Q. Mukhamadiev. “EVALUATION OF THE SORPTION PROPERTIES OF ORGANO/INORGANIC MS-SCHIFF HYBRID SORBENTS TOWARDS METAL CATIONS.” Samarqand davlat universiteti ilmiy tadqiqotlar axborotnomasi, 1(1), 54-64 (2026). https://doi.org/10.59251/2181-3973.2025.v1.138.1.3755
HarvardN. Kuliboeva, J. Uzokov, A. Mukhamadiev, I. Ruziev, and N.Q. Mukhamadiev (2026) ‘EVALUATION OF THE SORPTION PROPERTIES OF ORGANO/INORGANIC MS-SCHIFF HYBRID SORBENTS TOWARDS METAL CATIONS’, Samarqand davlat universiteti ilmiy tadqiqotlar axborotnomasi, 1(1), 54-64. https://doi.org/10.59251/2181-3973.2025.v1.138.1.3755
BibTeX
@article{nkuliboeva2026,
  title = {EVALUATION OF THE SORPTION PROPERTIES OF ORGANO/INORGANIC MS-SCHIFF HYBRID SORBENTS TOWARDS METAL CATIONS},
  author = {N. Kuliboeva and J. Uzokov and A. Mukhamadiev and I. Ruziev and N.Q. Mukhamadiev},
  journal = {Samarqand davlat universiteti ilmiy tadqiqotlar axborotnomasi},
  year = {2026},
  volume = {1},
  number = {1},
  pages = {54-64},
  doi = {10.59251/2181-3973.2025.v1.138.1.3755},
  url = {https://doi.org/10.59251/2181-3973.2025.v1.138.1.3755}
}

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