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All Journal Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Jurnal Katalisator
Putri Ramadhani
Universitas Andalas
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry

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Review: Metoda Adsorpsi pada Penyerapan Ion Logam dan Zat Warna dalam Limbah Cair Linda Hevira; Rahmiana Zein; Putri Ramadhani
Jurnal Sains dan Terapan Kimia Vol 13, No 1 (2019)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (486.659 KB) | DOI: 10.20527/jstk.v1i1.5906

Abstract

Pertumbuhan industri dan kebutuhan penduduk telah menyumbang limbah yang masuk ke lingkungan. Salah satunya adalah limbah yang mencemari perairan yang dapat membahayakan kesehatan manusia dan mahluk hidup lainnya. Sejumlah studi telah dilakukan untuk menghilangkan ion logam dan zat warna dari perairan. Metoda adsorpsi merupakan suatu metoda yang paling banyak digunakan dengan memanfaatkan sumber daya alam yang masih melimpah, atau menggunakan limbah pertanian, peternakan dan perikanan yang sering terbuang bahkan melakukan aktivasi atau modifikasi untuk memperbanyak porositas dan mempeluas bidang permukaan bahan penyerap. Dalam review ini dirangkum metoda adsorpsi dan hasil yang didapatkan  peneliti dengan berbagai bahan penyerap yang sebagian besar dilakukan dalam lima tahun terakhir. Ulasan ini penting untuk memberikan masukan dalam mencari alternatif bahan penyerap lain atau menghilangkan bahan pencemar berbahaya lainnya yang merusak lingkungan dan kehidupan manusia.
ISOTHERM, KINETICS, AND THERMODYNAMIC STUDIES FOR ADSORPTION METHYLENE BLUE SOLUTION USING SHRIMP SHELL Suci Wulandari; Hamdhan Fathony; Putri Ramadhani; Deswati; Rahmiana Zein
JURNAL KATALISATOR Vol. 8 No. 1 (2023): Jurnal Katalisator Volume 8 No. 1, April 2023
Publisher : LLDIKTI X Sumbar, Riau, Jambi, Kepri

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.866 KB) | DOI: 10.22216/katalisator.v8i1.2091

Abstract

This research was carried out adsorption of methylene blue dye using shrimp shell (SS) biosorbent. Methylene blue dye is commonly used in the textile and paper industries. Previously, research had been carried out on the adsorption of anionic dyes by shrimp shells, then in this study a batch adsorption was carried out to absorb methylene blue cationic dyes.It is carried out in batches with several parameters to obtain the optimum conditions. Several studies were carried out such as isotherm studies, kinetics and thermodynamics to analyze how the adsorption process occurs. The adsorption process followed the Langmuir isotherm model for the two biosorbents which showed the formation of monolayers, the kinetic model followed the second-order pseudo. The thermodynamic study of shrimp shells showed that the adsorption process was non-spontaneous, endothermic, and increased randomness. FTIR analysis shows that there are electrostatic interactions, cation exchange, and hydrogen bonding. SEM-EDX analysis shows that the pore filling of the biosorbent surface by methylene blue molecules occurs.
THERMODYNAMIC STUDY OF METHYLENE BLUE DYE ADSORPTION USING KAPOK HUSK Hamdhan Fathony; Suci Wulandari; Putri Ramadhani; Rahmiana Zein; Deswati
JURNAL KATALISATOR Vol. 8 No. 1 (2023): Jurnal Katalisator Volume 8 No. 1, April 2023
Publisher : LLDIKTI X Sumbar, Riau, Jambi, Kepri

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.349 KB) | DOI: 10.22216/katalisator.v8i1.2092

Abstract

This research discusses the thermodynamics of methylene blue(MB) adsorption using kapok husk (KH) and kapok huskmodified with citric acid (CA-KH). Both biosorbents obtained thermodynamic results with a negative value of the change in Gibbs energy (∆G), indicating that the adsorption process took place spontaneously, a negative value on enthalpy (∆H), indicating the adsorption process was an exothermic process, and a negative entropy value (∆S) indicating an increase The regular distribution of methylene blue dye on the surface during the adsorption process is proven by the results of SEM photo analysis at 3000x magnification with the distribution of methylene blue dye on the surface of the two biosorbents..
Co-Authors Deswati Deswati Hamdhan Fathony Linda Hevira Rahmiana Zein Suci Wulandari