Design and evaluation of chitosan/hydroxyapatite composite nanofiber membrane for the removal of heavy metal ions from aqueous solution

Aliabadi, Majid; Irani, Mohammad; Ismaeili, Jabir; Najafzadeh, Saeed

doi:10.1016/j.jtice.2013.04.016

Cited by 192 publications

(68 citation statements)

References 36 publications

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“…The maximum sorption capacities of Pb (II) and Cu (II) ions onto the chitosan/TiO 2 nanofibrous adsorbents were compared with that of the other nanofibrous adsorbents which results are presented in Table 4. As shown, the sorption capacities of both chitosan/TiO 2 nanofibrous adsorbents were found to be comparable and moderately higher than those of many corresponding sorbents in the literature [ [13,16,[29][30][31][32][33][34][35][36].…”

Section: Modeling Of Equilibrium Datamentioning

confidence: 80%

Chitosan nanofibers functionalized by TiO 2 nanoparticles for the removal of heavy metal ions

Razzaz

Ghorban

Hosayni

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

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235

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Section: Modeling Of Equilibrium Datamentioning

confidence: 80%

Chitosan nanofibers functionalized by TiO 2 nanoparticles for the removal of heavy metal ions

Razzaz

Ghorban

Hosayni

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

Self Cite

235

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“…To investigate the simultaneous effect of parameters on the response and optimization of parameters, the response surface methodology (RSM) is a useful statistical technique by reducing the number of experiments (Aliabadi, Irani, Ismaeili, & Najafzadeh, ; Karri, Tanzifi, et al, ; Tripathy, Ramesh, Debnath, & Kumar, ). Among RSM approaches, the central composite design (CCD) (Zare‐Dorabei, Ferdowsi, Barzin, & Tadjarodi, ; Zolgharnein, Shahmoradi, & Ghasemi, ) and Box–Behnken design (BBD) (Bhowmik, Deb, Debnath, & Saha, ; Bhowmik, Debnath, & Saha, ; Deb, Kanmani, Debnath, Bhowmik, & Saha, ; Ebrahimzadeh, Behbahani, Yamini, Adlnasab, & Asgharinezhad, ) have been extensively used for optimization of adsorption process.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of sewage sludge‐based carbon/TiO₂/ZnO nanocomposite adsorbent for the removal of Ni(II), Cu(II), and chemical oxygen demands from aqueous solutions and industrial wastewater

Khosravi

Mehrdadi

Bidhendi

et al. 2019

Water Environment Research

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The removal of heavy metal ions and organic materials from wastewater due to their toxicity is necessary. In the present study, the titanium dioxide/zinc oxide (TiO2/ZnO) nanocomposite has been coated on the sewage sludge carbon (SSC) surface and its application was investigated for the adsorption of Ni(II), Cu(II), and chemical oxygen demands (COD) reduction from aqueous solutions and industrial wastewaters in Eshtehard, Iran. The effect of adsorption parameters in a single system such as TiO2/ZnO ratio, TiO2/ZnO concentration, pH, adsorbent dosage, contact time, ionic strength, temperature, and initial concentrations of Ni(II), Cu(II), and COD was investigated on the adsorption capacity of synthesized SSC/TiO2/ZnO adsorbent. The pseudo‐second order and Redlich–Peterson isotherm models were best described the kinetic and equilibrium data of Ni(II), Cu(II), and COD sorption. The maximum monolayer sorption capacities of Ni(II), Cu(II), and COD were found to be 62.3, 75.1, and 1,120.3 mg/g, respectively. The central composite design was used to investigate the interaction effects of pH and initial concentrations of Ni(II), Cu(II), and COD on the simultaneous removal of Ni(II), Cu(II), and COD from aqueous solutions in a ternary system. The potential of synthesized SSC/TiO2/ZnO adsorbent was investigated for Ni(II), Cu(II), and COD adsorption from industrial wastewaters of Iran. Practitioner points The novel sewage sludge carbon/TiO2/ZnO adsorbent was synthesized. Adsorption of Ni(II), Cu(II), and chemical oxygen demands (COD) from industrial wastewaters was investigated. Maximum Ni(II), Cu(II), and COD sorption capacities were 62.3, 75.1, and 1,120.3 mg/g. Simultaneous removal of Ni(II), Cu(II), and COD was investigated in a ternary system.

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“…[14][15][16][17][18] In addition to the starting materials previously mentioned, because of the abundant presence of -OH and -NH 2 groups, renewable chitosan (CS) has been extensively studied for the removal of heavy metal ions from aqueous solutions. 19 Meanwhile, as a renewable resource, CS can be easily obtained from shellsh and the wastes of the seafood processing industry. 20 Because of the natural, easy-to-dissolve properties of CS, it is difficult to recycle and re-use it as a traditional CS-based adsorbent in acidic conditions.…”

Section: 13mentioning

confidence: 99%

Preparation of PEI/CS aerogel beads with a high density of reactive sites for efficient Cr(vi) sorption: batch and column studies

Xiao

et al. 2017

RSC Adv.

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In view of the sustainable character and high-density of reactive sorption sites, a new kind of poly(ethylenimine)/chitosan (PEI/CS) aerogel beads were successfully synthesized using controllable sol-gel and freeze drying methods, with the aim of using them for efficient Cr(VI) removal from aqueous acid solutions. Compared with the reported CS-based sorbents for hexavalent chromium [Cr(VI)], not only is the synthetic process used simple but the bead-like samples could be easily separated from solutions for recycling. Structural characterization and batch experiments were compared to illustrate the adsorption performance of the aerogel beads which were synthesized using various processes. Out of the three samples (CS-glutaraldehyde (GA), CS-GA-PEI and CS/PEI-GA beads), the one referred to as CS-GA-PEI exhibited the highest adsorption capacity and the maximum amount of Cr(VI) removal was 402.9 mg g À1 at pH 2.0 and 298 K. The pseudo-second-order and Langmuir model preferably fitted the adsorption process best. After five cycles of desorption-regeneration tests, more than 80% of Cr(VI) could still be removed by these newly designed CS-GA-PEI beads. Adsorption mechanisms could be explained using electrostatic attraction and reduction reaction theories, on the basis of comprehensive analysis. More importantly, taking advantage of the micrometer sized particles and three-dimensional network that developed, fixed-bed column tests were also conducted on the resultant bead-like sample, which also exhibited excellent sorption performance under testing conditions. These superiorities of CS-GA-PEI beads make them a potential candidate for use in remediating the pollution caused by Cr(VI) ions.

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Design and evaluation of chitosan/hydroxyapatite composite nanofiber membrane for the removal of heavy metal ions from aqueous solution

Cited by 192 publications

References 36 publications

Chitosan nanofibers functionalized by TiO 2 nanoparticles for the removal of heavy metal ions

Chitosan nanofibers functionalized by TiO 2 nanoparticles for the removal of heavy metal ions

Synthesis of sewage sludge‐based carbon/TiO₂/ZnO nanocomposite adsorbent for the removal of Ni(II), Cu(II), and chemical oxygen demands from aqueous solutions and industrial wastewater

Preparation of PEI/CS aerogel beads with a high density of reactive sites for efficient Cr(vi) sorption: batch and column studies

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Design and evaluation of chitosan/hydroxyapatite composite nanofiber membrane for the removal of heavy metal ions from aqueous solution

Cited by 192 publications

References 36 publications

Chitosan nanofibers functionalized by TiO 2 nanoparticles for the removal of heavy metal ions

Chitosan nanofibers functionalized by TiO 2 nanoparticles for the removal of heavy metal ions

Synthesis of sewage sludge‐based carbon/TiO2/ZnO nanocomposite adsorbent for the removal of Ni(II), Cu(II), and chemical oxygen demands from aqueous solutions and industrial wastewater

Preparation of PEI/CS aerogel beads with a high density of reactive sites for efficient Cr(vi) sorption: batch and column studies

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Synthesis of sewage sludge‐based carbon/TiO₂/ZnO nanocomposite adsorbent for the removal of Ni(II), Cu(II), and chemical oxygen demands from aqueous solutions and industrial wastewater