Synthesis and application of fluorescent and thermally stable polyazomethine as adsorbent in the remediation of Ni (II), Cu (II) and Co (II) from wastewater systems

Qureshi, Farah; Memon, Saima Q.; Khuhawar, Muhammad Yar; Jahangir, Taj Muhammad; Channar, Abdul Hamid

doi:10.1007/s10965-021-02582-2

Cited by 7 publications

(1 citation statement)

References 39 publications

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“…3) for both p -PAM and m -PAM, which corresponds to the imine stretch and matches with the values reported in the literature. 55–57 Additionally, the presence of a peak at 8.9 ppm in the solution-state 1 H NMR spectra of the polyazomethines confirms the formation of imine bonds. The relatively low intensity peak at 10.35 ppm in the 1 H NMR spectra and the carbonyl stretch at around 1680 cm −1 in the ATR-IR spectra are attributed to the terminal aldehyde groups on the polyazomethines.…”

Section: Resultsmentioning

confidence: 82%

π-Face strapped monomers enable self-stabilized hyperbranched π-conjugated polymer particles

Mohanan,

Zhang,

Gavvalapalli

2024

Polym. Chem.

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Section: Resultsmentioning

confidence: 82%

π-Face strapped monomers enable self-stabilized hyperbranched π-conjugated polymer particles

Mohanan,

Zhang,

Gavvalapalli

2024

Polym. Chem.

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Synthesis, characterization, antimicrobial and photocatalytic properties of nano-silver-doped flax fibers

2022

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In the present study, the nano-silver-doped flax fibers (NAgDFF) are prepared in two steps. In the first step, oxidation of the flax fibers is performed by potassium periodate to form dialdehyde cellulose (DAC) and the second step is the reduction of silver ions by DAC. A series of characterization techniques of the photocatalyst NAgDFF was carried out using scanning electron microscopy, Fourier transform infrared spectroscopy, N2 adsorption isotherm, thermogravimetric analysis and energy-dispersive X-ray spectroscopy. The dye degradation potential of NAgDFF for methylene blue (MB), crystal violet (CV) and brilliant green (BG) (individually or mixture) was investigated using batch and column tests. The degradation efficiency was studied under optimized conditions such as pH (5.0), dye initial concentrations (100 ppm for MB and BG, and 150 ppm for CV), contact time (3.0 h), photocatalyst NAgDFF dose (0.08 g) and temperature (25° C). The maximum degradation efficiency of NAgDFF for MB, CV and BG is 64.75, 94.98 and 63.87 (mg/g), respectively. The kinetic studies show that the experimental data match well with the pseudo-second-order kinetic model. Furthermore, equilibrium isotherm data were analyzed according to Langmuir, Freundlich and Dubinin–Radushkevich equations. The thermodynamic parameters for the adsorption processes of cationic dyes on the NAgDFF fibers were also calculated; the negative value of ΔG° indicated the spontaneous nature of sorption. NAgDFF fibers were successfully applied for photodegradation of the investigated cationic dyes from different samples. The study was extended to investigate the biological activity of newly synthesized NAgDFF against various microorganisms.

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Photocatalytic Degradation of Eriochrome Black T Dye by ZnO Nanoparticles Using Multivariate Factorial, Kinetics and Isotherm Models

Lanjwani

Khuhawar

et al. 2022

J Clust Sci

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Synthesis and application of fluorescent and thermally stable polyazomethine as adsorbent in the remediation of Ni (II), Cu (II) and Co (II) from wastewater systems

Cited by 7 publications

References 39 publications

π-Face strapped monomers enable self-stabilized hyperbranched π-conjugated polymer particles

π-Face strapped monomers enable self-stabilized hyperbranched π-conjugated polymer particles

Synthesis, characterization, antimicrobial and photocatalytic properties of nano-silver-doped flax fibers

Photocatalytic Degradation of Eriochrome Black T Dye by ZnO Nanoparticles Using Multivariate Factorial, Kinetics and Isotherm Models

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