Nanocrystalline hydroxyapatite from fish scale waste: Preparation, characterization and application for selenium adsorption in aqueous solution

Biosorbent prepared from the scale of croaker fish (Genyonemus lineatus) has been used for the removal of Pb(II) ion from aqueous solution in a batch system. The effects of some important parameters such as pH, initial metal concentration, temperature and biosorbent dosage on biosorption capacity were investigated. Equilibrium time for the biosorption process is 20 and 30 min at lower and higher concentrations, respectively. The process at 28 °C is in agreement with a pseudo-second-order kinetics model. The equilibrium data obeyed the Langmuir adsorption isotherm with a maximum monolayer adsorption capacity of 14.58 mg g−1. The study showed that the sorption process depends on biomass dosage, temperature, pH and initial metal ion concentration. The calculated thermodynamics parameters (ΔGo, ΔHo and ΔSo) indicated that the biosorption of the metal ion onto fish scale is feasible, spontaneous and exothermic in nature.

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Comparative study of the adsorption capacity of lead (II) ions onto bean husk and fish scale from aqueous solution

Journal of Water Reuse and Desalination ◽

10.2166/wrd.2019.061 ◽

2019 ◽

Vol 9 (3) ◽

pp. 249-262 ◽

Cited By ~ 2

Author(s):

Chionyedua T. Onwordi ◽

Cosmas C. Uche ◽

Alechine E. Ameh ◽

Leslie F. Petrik

Keyword(s):

Aqueous Solution ◽

Adsorption Capacity ◽

Low Cost ◽

Linear Equations ◽

Sorption Isotherms ◽

Textile Wastewater ◽

Order Kinetic ◽

Fish Scale ◽

Adsorbent Dosage ◽

Xrd Techniques

Abstract The present study compared the adsorption capacity of Pb (II) ions from aqueous solution onto biopolymer materials (BPMs): (bean husk (BH) and fish scale (FS)). Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques were used to characterize the BPMs. The optimal conditions of the variables: pH, adsorbent dosage, initial metal concentration, contact time and temperature were ascertained. Experimental data were applied to the Langmuir, Freundlich and Temkin sorption isotherms using the linear equations form. The optimal removal of Pb (II) ions with BH and FS was obtained at pH 7.0 and 6.0, and 0.2 g adsorbent dosage each, respectively. The removal of Pb (II) ions fitted the pseudo-second order kinetic model well for the materials. Equilibrium Langmuir isotherm, which indicated a heterogeneous process, gave a better conformity than the other models used for BH while the Temkin isotherm gave better conformity for FS. The FS reached equilibrium faster (at about 30 min) compared to BH (at about 60 min); however, the processes are both spontaneous and endothermic. The BPMs gave about 90% removal of Pb (II) ions at the optimum dosage when used for textile wastewater. The BPMs, therefore, can be used as effective, low-cost and environmentally friendly adsorbents.

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Batch studies of lead adsorption from a multi-component aqueous solution onto Atlantic cod fish scale (Gadus morhua) substrate

Journal of Environmental Engineering and Science ◽

10.1139/s06-070 ◽

2007 ◽

Vol 6 (4) ◽

pp. 455-462 ◽

Cited By ~ 9

Author(s):

A Basu ◽

M S Rahaman ◽

S Mustafiz ◽

M R Islam

Keyword(s):

Aqueous Solution ◽

Gadus Morhua ◽

Atlantic Cod ◽

Fish Scale ◽

Batch Studies ◽

Lead Adsorption

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Removal of nitrobenzene from aqueous solution by adsorption on nanocrystalline hydroxyapatite

Desalination ◽

10.1016/j.desal.2010.06.043 ◽

2010 ◽

Vol 263 (1-3) ◽

pp. 89-96 ◽

Cited By ~ 67

Author(s):

Wei Wei ◽

Rong Sun ◽

Jing Cui ◽

Zhenggui Wei

Keyword(s):

Aqueous Solution ◽

Nanocrystalline Hydroxyapatite

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Fish Scale Derived Nanocrystalline Hydroxyapatite: A Potential Candidate for Orthopedic Applications

Journal of Bionanoscience ◽

10.1166/jbns.2016.1346 ◽

2016 ◽

Vol 10 (2) ◽

pp. 140-144 ◽

Cited By ~ 2

Author(s):

G. Suresh Kumar ◽

T. Sivakumar ◽

S. Karthi ◽

R. Govindan ◽

E. K. Girija

Keyword(s):

Potential Candidate ◽

Fish Scale ◽

Nanocrystalline Hydroxyapatite ◽

Orthopedic Applications

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Structures Formed by Cryoprotective Agents Used in Freezc-Etching

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100066292 ◽

1971 ◽

Vol 29 ◽

pp. 448-449

Author(s):

G. G. Cocks ◽

C. E. Cluthe

Keyword(s):

Aqueous Solution ◽

Polyethylene Oxide ◽

Liquid Nitrogen Temperature ◽

Ice Crystals ◽

Etching Technique ◽

Structural Constituent ◽

Cryoprotective Agents ◽

Quick Freezing ◽

Freeze Etching ◽

Fractured Surface

The freeze etching technique is potentially useful for examining dilute solutions or suspensions of macromolecular materials. Quick freezing of aqueous solutions in Freon or propane at or near liquid nitrogen temperature produces relatively large ice crystals and these crystals may damage the structures to be examined. Cryoprotective agents may reduce damage to the specimem, hut their use often results in the formation of a different set of specimem artifacts.In a study of the structure of polyethylene oxide gels glycerol and sucrose were used as cryoprotective agents. The experiments reported here show some of the structures which can appear when these cryoprotective agents are used.Figure 1 shows a fractured surface of a frozen 25% aqueous solution of sucrose. The branches of dendritic ice crystals surrounded hy ice-sucrose eutectic can be seen. When this fractured surface is etched the ice in the dendrites sublimes giving the type of structure shown in Figure 2. The ice-sucrose eutectic etches much more slowly. It is the smooth continuous structural constituent surrounding the branches of the dendrites.

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Scanning Electron Microscopy of Fish Scales as an Adjunctive Aid in Speciation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100095236 ◽

1972 ◽

Vol 30 ◽

pp. 394-395

Author(s):

Edward D. DeLamater ◽

Walter R. Courtenay ◽

Cecil Whitaker

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Lateral Line ◽

Species Differences ◽

Fish Scale ◽

Fish Scales ◽

Anterior Border ◽

The University ◽

Multiple Holes ◽

Scanning Electron

Comparative scanning electron microscopy studies of fish scales of different orders, families, genera and species within genera have demonstrated differences which warrant elaboration. These differences in detail appear to be sufficient to act as “fingerprints”, at least, for family differences. To date, the lateral line scales have been primarily studied. These demonstrate differences in the lateral line canals; the pattern of ridging with or without secondary protuberances along the edges; the pattern of spines or their absence on the anterior border of the scales; the presence or absence of single or multiple holes on the ventral and dorsal sides of the lateral line canal covers. The distances between the ridges in the pattern appear likewise to be important.A statement of fish scale structure and a comparison of family and species differences will be presented.The authors wish to thank Dr. Donald Marzalek and Mr. Wallace Charm of the Marine and Atmospheric Laboratory of the University of Miami and Dr. Sheldon Moll and Dr. Richard Turnage of AMR for their exhaustive help in these preliminary studies.

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