Adsorption enhancement of heavy metal ions using chitosan-modified natural zeolite nanocomposite

Yulizar, Yoki; Utari, Tresye; Apriandanu, Dewangga Oky Bagus; Utami, Rinda Aulia

doi:10.1063/5.0007927

Cited by 1 publication

(2 citation statements)

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“…Meanwhile, Mirbaloochzehi et al [60] modified the clinoptilolite using a surfactant (Triton X-100) to remove heavy metal cations (i.e., Cu(II), Pb(II), Ni(II), Cd(II), Fe(II), and Zn(II)) from aqueous solution with cation sorption capacity for Pb(II), Cu(II), Cd(II), Ni(II), Zn(II) , and Fe(II) was 91.34, 85.71, 78.27, 76.18, 67.41 and 63.45 mg g −1 , respectively. Chitosan nanoparticles were also investigated as a modifier to the natural zeolite to improve the sorption capacity of Pb(II) ions [61]. As a result, the adsorption capacity was increased compared to the non-modified zeolite from 43.83 to 49.91%.…”

Section: Modified Natural Zeolitementioning

confidence: 99%

“…The modified zeolite shows higher removal efficiencies for Hg(II) and Pb(II) due to another phenomenon process besides ion exchange, i.e., the process of removing the cations, regarding the complexation process of the cations with free electron pairs of sulfur or nitrogen atoms in DT. Yulizar et al [61] have modified natural zeolite with chitosan to improve its adsorption capacity by adding a functionalized group. The modified zeolite shows a material in nano-size scale rendering better adsorption ability with an adsorption percentage of 99.68%.…”

Section: Adsorption Capacity Of Modified Natural Zeolitementioning

confidence: 99%

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Removal of Heavy Metal Ions Using Pristine and Functionalized Natural Zeolites

Solihin,

Mardiana,

Rusli

et al. 2023

Indones. J. Chem.

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Heavy metal ions have attracted significant concern regarding their toxicity in living organisms. Concurrently, the removal of heavy metals by the adsorption method is also under the spotlight because it is effective, less cost-demanding, and easy to operate. To date, natural zeolites become one of the most used adsorbents for it is low cost, abundant in reserve, and has high selectivity towards heavy metal. Zeolites possess negatively charged three-dimensional frameworks built by SiO4 and AlO4 tetrahedra, which are balanced by counter-cations. The cations within zeolite frameworks can be exchanged with the heavy metal cations in an aqueous environment. This review comprehensively reports the adsorption capacity of heavy metal ions using pristine and modified natural zeolite. The important aspects, including the physicochemical properties of pristine and modified natural zeolites, heavy metal ion adsorption isotherms, kinetics, and thermodynamics, are discussed in detail. It is imperative to note that the physicochemical properties of natural zeolites greatly determine the adsorption capability. Furthermore, natural zeolites could be modified with various molecules such as surfactants and polymers to improve the adsorption capacity and adsorb heavy metal anions. Ultimately, this review is concluded with prospects for future improvement.

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Section: Modified Natural Zeolitementioning

confidence: 99%

Section: Adsorption Capacity Of Modified Natural Zeolitementioning

confidence: 99%