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Kolo, Maria Magdalena
Program Studi Kimia, Fakultas Pertanian, Sains Dan Kesehatan, Universitas Timor, NTT, Indonesia
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Journal : Molluca Journal of Chemistry Education (MJoCE)

 1 
PEMBUATAN ARANG AKTIF DARI TEMPURUNG BUAH LONTAR (Borassus flabellifer L.) SEBAGAI ADSORBEN RHODAMIN B Batu, Matius Stefanus; Mading, Ridwan; Kolo, Maria Magdalena
Molluca Journal of Chemistry Education (MJoCE) Vol 14 No 1 (2024): MJoCE
Publisher : Program Studi Pendidikan Kimia, FKIP, Universitas Pattimura (Chemistry Education Study Program, Faculty of Teacher Training and Educational Sciences, Pattimura University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol14iss1pp10-21

Abstract

Telah dilakukan penelitian mengenai arang aktif dari tempurung buah lontar (Borassus flabellifer L.) sebagai absorben terhadap pewarna sintetik rhodamin B. Tujuan dari penelitian ini untuk menentukan kadar air, kadar abu serta menentukan karakteristik arang aktif dari limbah tempurung buah lontar teraktivasi HCl dan menentukan kondisi optimum pada adsorbsi Rhodamin B dengan menggunakan arang aktif. Pembuatan arang aktif dari tempurung buah lontar dengan metode karbonasi dan aktivasi. HCL 1 M digunakan sebagai aktivator dengan waktu perendaman 24 jam. Proses absorbsi dilakukan dengan variasi massa absorben dan waktu kontak. Hasil yang diperoleh pada penelitian ini menunjukan bahwa karbon aktif dari tempurung buah lontar memiliki kadar air sebesar 2,18%, kadar abu sebesar 9,173% dan massa absorben optimum diperoleh pada massa absorben 1 gr dengan kapasitas adsorbat sesudah adsorbsi sebesar 0,387 ppm dan efisiensi adsorpsi sebesar 99,94 %. Sedangkan waktu kontak optimum terhadap Rhodamin B diperoleh pada waktu kontak 30 menit dengan dengan efisiensi adsorpsi sebesar 99,84 %.
SYNTHESIS OF ACTIVATED CARBON FROM SORGUM STEM WASTE (Sorghum bicolor (L.) Moench) AS RHODAMIN B ADSORBENT WITH VARIATIONS OF NaOH ACTIVATOR CONCENTRATION Batu, Matius Stefanus; Kolo, Maria Magdalena; Teti, Roswita
Molluca Journal of Chemistry Education (MJoCE) Vol 15 No 2 (2025): MJoCE
Publisher : Program Studi Pendidikan Kimia, FKIP, Universitas Pattimura (Chemistry Education Study Program, Faculty of Teacher Training and Educational Sciences, Pattimura University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol15iss2pp59-67

Abstract

Rhodamine B is a synthetic dye commonly used, especially in the textile industry. Excessive entry of Rhodamine B into the environment can alter the pH of water, which can disturb microorganisms and animals living in aquatic environments. One way to address the pollution of Rhodamine B is by using activated carbon from sorghum stalk waste. Activated carbon is carbon that has been processed through activation to have pores with a very large surface area, thereby enhancing its adsorption capacity. The aim of this study is to determine the characteristics of activated carbon from sorghum stalk waste and to determine the optimum NaOH concentration in the synthesis of activated carbon from sorghum stalk waste as an adsorbent for Rhodamine B dye. The stages in this study include the preparation of sorghum stalk waste samples, carbonization, and activation of the carbon from sorghum stalk waste using NaOH activator with concentration variations of 2, 3, 4, 5, and 6% for 24 hours. The adsorption process was carried out using the activated carbon from sorghum stalk waste to adsorb Rhodamine B dye. The results of the study showed that the characteristics of the activated carbon from sorghum stalk waste had a moisture content of 4-7.3%, ash content of 2.3-7.6%, and an iodine adsorption capacity of 2,410.67-3,427.11 mg/g. The results of the characterization of activated carbon from sorghum stalk waste overall met the Indonesian National Standard (SNI). The optimum NaOH activator concentration for adsorbing Rhodamine B dye was obtained at a concentration of 6%, with an adsorption efficiency of 88.94%.
Co-Authors Adolvina Kono Agustina Rosalia Saka Agustinus Akoit Alfred Nubatonis Azor Yulianus Tefa Batu, Matius S Batu, Matius Stafenus Berek, Gaudesisus Usi Bernadina Metboki, Bernadina Bira, Gerson Frans Bria, Deseriana Bria, Emilia Juliyanti Cornelis Astridino Nitbani Deni Yonathan Lulu Edi, Eduardus Eduardus Yosef Neonbeni Efieno Maria Paulo Soares Eka Maria Sanit Emerensiana Naes Febrya Christin Handayani Buan Fransiska Rika Fredy Kurniawan Funan, Selviana Ermalinda Gelyaman, Gebhardus Djugian Gerson Frans Bira Gradiana Yosefa Nana Hilarius Y Sikone Jefry Presson jefry Presson Kia, Kristoforus W Korbafo, Elisabeth Lukas Pardosi Mading, Ridwan Mahardika Putra Purba Mako, Febriana Manek, Seprianus Septian Maria Fridolina Taek Maria Imaculata Mali Maria Rosanti Bani Mata, Meri Halsiana Matius Stefanus Batu Mere, Jenrigo Klaumegio Metriana Matilda Taus N. M. Obenu Naisau, Mikhael Rifantus Noviana Getrudis Abi Nugraha K. F. Dethan Oktovianus R Nahak Paulus Klau Tahuk Pieter Jackson Lopez Dethan Regina Seran Rika, Fransiska Risna Erni Yati Adu Saka, Agustina Rosalia Sakan, Sergius Sefrinus Maria Dolfi Kolo Sio Stefanus, Sio Sipayung, Boanerges Putra Taus, Jonisius Tea, Marselina Theresia Djue Tefa, Azor Y Teti, Roswita Thaal, Elisa M. Tse, Anastasia Wilda Lumban Tobing Yakobus Pffeferius Edvend Saba Agu Yohana Ivana Kedang Yuni Sine Zofar Agluis Banunaek