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All Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) JPSriwijaya Jurnal Penelitian Sains Communications in Science and Technology Molekul: Jurnal Ilmiah Kimia ASEAN Journal of Chemical Engineering Makara Journal of Science Bulletin of Chemical Reaction Engineering & Catalysis
Widia Purwaningrum
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Sriwijaya University, Indralaya, Sumatra Selatan, 30662, Indonesia Research Centre Of Advanced Material And Nanocomposite, Sriwijaya University, Indralaya, Sumatra Selatan, 30662,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Mathematics Neuroscience Physics Public Health

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Synthesis and Characterization of Nanoparticle Composite CaO/Fe3O4 from Duck Egg Shells and Its Application for Congo Red and Procion Red MX-5b Dyes Adsorption Purwaningrum, Widia; Riyanti, Fahma; Julinar, Julinar; Hariani, Poedji Loekitowati; Ahadito, Bijak Riyandi; Chodijah, Siti; Safira, Vika Putri
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.103

Abstract

In order to improve the adsorption performance of CaO prepared from duck egg shells, a 1:1 composite of CaO/Fe3O4 were synthesized using a coprecipitation method. This composite was then used to adsorb Congo red and Procion red MX-5b dyes from an aqueous solution. The adsorption process was studied by investigating the effects of contact time, temperature, and initial concentration of dye. It was found that the optimum conditions for Congo red adsorption are 50 minutes of contact, 50 °C, and 225 mg/L of dye, while for Procion red MX-5b the conditions are 50 minutes of contact, 60 °C, and 250 mg/L of dye. The behavior of both adsorbents at equilibria follows a pseudo-second-order kinetic model and Langmuir isotherm, with the adsorption capacity at optimum condition for Congo red and Procion red MX-5b 46.95 mg/g and 47.39 mg/g, respectively. Thermodynamics studies showed that the adsorption process of Congo red was endothermic, while Procion red MX-5b was exothermic, yet both were found to happen spontaneously.
Modification of CaO from Quail Egg Shells with Sodium Dodecyl Sulfate through Extraction and Precipitation Method as Adsorbent for Methylene Blue Dyes Purwaningrum, Widia; Manurung, Yolanda Fany Claudia; Fatma, Fatma; Mara, Ady
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 3 (2024): October 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i3.155

Abstract

Calcium oxide (CaO) is widely used as an adsorbent due to high adsorption effectiveness and can adsorb metals in wastewater and dye waste. The aim of this research is to synthesize CaO from quail egg shells and then modify it using sodium dodecyl sulfate surfactant. Synthesis of CaO was carried out through the extraction method using HCl 1% and precipitation method using Na2CO3 1M. Modified CaO was synthesized by the same method with the addition of Sodium Dodecyl Sulfate (SDS).  Diffractogram peaks on CaO and  CaO modifications are similar to JCPDS data No.88-1811. CaO IR spectrum modification after adsorption showed the addition of functional groups C-N and C=N from methylene blue. CaO and CaO's modifications had pHpzc of 11.82 and 11.62. CaO modification using SDS caused a decrease in the surface area of CaO from 3.9 to 2.5 m2/g and an increase in the pore radius from 3.6 to 13.5 nm. Modification of CaO using SDS decrease the surface area of CaO but adsorption capacity increases 66.19% from 44.63 mg/g to 74.17 mg/g. Kinetic model and adsorption isotherm on CaO and CaO modifications occur in pseudo-second order by following the Langmuir isotherm model. The adsorption process is endothermic and adsorption occurs spontaneously with positive ∆Ho and negative ∆Go values at each adsorption temperature
Co-Authors Abd. Rasyid Syamsuri Addy Rachmat Adiq Ahmadi Ady Mara, Ady Ahmad Yogi Nugraha Aria Septi Handayani Bijak Riyandi Ahadito Desnelli Desnelli Elfita Elfita Fahma Riyanti Fatma Fingky Pristika Sari Fitrya Fitrya Frisca Yanti Sialagan Hasanudin Hasanudin Hery Widijanto I. A. Gede Widihati Iqlima Amelia Julinar Julinar Julinar Julinar Manurung, Yolanda Fany Claudia Muhammad Said MUHAMMAD SAID Ni Wayan Sekarini Nova Yuliasari Poedji Loekitowati Hariani Rizki, Widya Twiny Safira, Vika Putri Shella Santika Damarril Siti Chodijah Vilantina, Vilantina