Elimination of Hexavalent Chromium Ions in Water Using a Manganese-Coated Pumice Adsorbent

• Autorzy: Lestari Puji , Purwiandono Gani , Pramayshela Shike , Siswoyo Eko

Identyfikatory

DOI

10.12911/22998993/175199

• Języki publikacji: EN

Abstrakty

EN

A natural pumice stone stone coated with manganese (Mn) has been prepared and utilized to remove hexavalent chromium (Cr(VI)) ions in water via adsorption process. Prior to the application, the natural pumice was ground, sieved, and immerse in a dilute HCl solution. The coating of Mn on the acid-activated pumice was carried out by soaking the powder in 0.5 M Mn(NO₃)₂ solution for 72 h. The characterisation of the produced pumice adsorbent was performed with scanning electron microscopy and fourier-transform infrared spectroscopy instruments. The adsorption of Cr(VI) onto Mn-coated pumices was optimum at pH 3. Both the Langmuir and Freundlich isotherm models could be used to describe the adsorption process. The rate of adsorption followed the model for pseudo- second-order kinetics. The maximum adsorption capacity of Mn-coated pumice towards Cr(VI) ions was 1.94 mg/g.

Słowa kluczowe

EN

adsorption; hexavalent chromium; isotherm; Mn-coated pumice

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2024
• Tom: Vol. 25, nr 1
• Strony: 229--235
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Lestari Puji

• Department of Environmental Engineering, Faculty of Civil Engineering and Planning, Universitas Islam Indonesia, Jl. Kaliurang Km. 14.5, Yogyakarta 55584, Indonesia

• https://orcid.org/0000-0002-6274-1176

autor

Purwiandono Gani

• Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Jl. Kaliurang Km. 14.5, Yogyakarta 55584, Indonesia

autor

Pramayshela Shike

• Department of Environmental Engineering, Faculty of Civil Engineering and Planning, Universitas Islam Indonesia, Jl. Kaliurang Km. 14.5, Yogyakarta 55584, Indonesia

autor

Siswoyo Eko

• Department of Environmental Engineering, Faculty of Civil Engineering and Planning, Universitas Islam Indonesia, Jl. Kaliurang Km. 14.5, Yogyakarta 55584, Indonesia

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).