Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid
The textile industry in the world keeps increasing, but it harms environmental pollution caused by textile dye waste. Synthetic dyes contain carcinogenic and mutagenic ingredients that can demage the environment and aquatic biota. The alternative to handling dye pollution with a low-cost method is a...
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Format: | Article |
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Jenderal Soedirman University
2024-03-01
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Series: | Molekul |
Online Access: | http://jos.unsoed.ac.id/index.php/jm/article/view/9443 |
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author | Anselmus Boy Baunsele Aloisius Masan Kopon Erly Grizca Boelan Maria A. U. Leba Faderina Komisia Maria B. Tukan Maximus M. Taek Gerardus D. Tukan Hildegardis Missa Dwi Siswanta Johnson N. Naat Rahayu Rahayu |
author_facet | Anselmus Boy Baunsele Aloisius Masan Kopon Erly Grizca Boelan Maria A. U. Leba Faderina Komisia Maria B. Tukan Maximus M. Taek Gerardus D. Tukan Hildegardis Missa Dwi Siswanta Johnson N. Naat Rahayu Rahayu |
author_sort | Anselmus Boy Baunsele |
collection | DOAJ |
description | The textile industry in the world keeps increasing, but it harms environmental pollution caused by textile dye waste. Synthetic dyes contain carcinogenic and mutagenic ingredients that can demage the environment and aquatic biota. The alternative to handling dye pollution with a low-cost method is adsorption using nitric acid-activated coconut fiber. Coconut fiber was an abundant agricultural waste and economical, and it had an active site that contained many compounds such as cellulose, lignin, pyroligneous acid, and tannin molecules. This study used the UV-Vis Spectrophotometer analysis method to determine the effect of pH, contact time, and coconut fiber on the adsorption capacity of methylene blue. The result showed that the optimal conditions for adsorption were a pH of 5, a contact time of 75 minutes, and a percentage adsorption of the variation of contact time of 99.628%. The adsorption study was according to a pseudo-second-order reaction with a constant reaction rate of 0.050 g mg-1 minute-1. The maximum adsorption capacity was 2 mg g-1, with the percentage of methylene blue adsorbed at 99.84%. Adsorption occurs chemically with an energy of 35.4 kJ mol-1, so it can be determined that it occurs with a monolayer mechanism. |
first_indexed | 2024-04-24T13:07:52Z |
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id | doaj.art-de8da2265b3b4cfc9431a841cfa6f6b6 |
institution | Directory Open Access Journal |
issn | 1907-9761 2503-0310 |
language | English |
last_indexed | 2024-04-24T13:07:52Z |
publishDate | 2024-03-01 |
publisher | Jenderal Soedirman University |
record_format | Article |
series | Molekul |
spelling | doaj.art-de8da2265b3b4cfc9431a841cfa6f6b62024-04-05T06:44:58ZengJenderal Soedirman UniversityMolekul1907-97612503-03102024-03-0119112814210.20884/1.jm.2024.19.1.94439443Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric AcidAnselmus Boy Baunsele0Aloisius Masan Kopon1Erly Grizca Boelan2Maria A. U. Leba3Faderina Komisia4Maria B. Tukan5Maximus M. Taek6Gerardus D. Tukan7Hildegardis Missa8Dwi Siswanta9Johnson N. Naat10Rahayu Rahayu11Chemical Education Study Program, Faculty of Teacher Training and Education, Widya Mandira Catholic University, Kupang, IndonesiaChemical Education Study Program, Faculty of Teacher Training and Education, Widya Mandira Catholic University, Kupang, IndonesiaChemical Education Study Program, Faculty of Teacher Training and Education, Widya Mandira Catholic University, Kupang, IndonesiaChemical Education Study Program, Faculty of Teacher Training and Education, Widya Mandira Catholic University, Kupang, IndonesiaChemical Education Study Program, Faculty of Teacher Training and Education, Widya Mandira Catholic University, Kupang, IndonesiaChemical Education Study Program, Faculty of Teacher Training and Education, Widya Mandira Catholic University, Kupang, IndonesiaChemistry Study Program, Faculty of Mathematics and Natural Sciences, Widya Mandira Catholic University, Kupang, IndonesiaChemistry Study Program, Faculty of Mathematics and Natural Sciences, Widya Mandira Catholic University, Kupang, East Nusa Tenggara, IndonesiaBiology Education Study Program, Faculty of Teacher Training and Education, Widya Mandira Catholic University, Kupang, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Yogyakarta , IndonesiaChemical Education Study Program, Faculty of Teacher Training and Education, Nusa Cendana University, Kupang, IndonesiaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, University of Pattimura, Ambon , IndonesiaThe textile industry in the world keeps increasing, but it harms environmental pollution caused by textile dye waste. Synthetic dyes contain carcinogenic and mutagenic ingredients that can demage the environment and aquatic biota. The alternative to handling dye pollution with a low-cost method is adsorption using nitric acid-activated coconut fiber. Coconut fiber was an abundant agricultural waste and economical, and it had an active site that contained many compounds such as cellulose, lignin, pyroligneous acid, and tannin molecules. This study used the UV-Vis Spectrophotometer analysis method to determine the effect of pH, contact time, and coconut fiber on the adsorption capacity of methylene blue. The result showed that the optimal conditions for adsorption were a pH of 5, a contact time of 75 minutes, and a percentage adsorption of the variation of contact time of 99.628%. The adsorption study was according to a pseudo-second-order reaction with a constant reaction rate of 0.050 g mg-1 minute-1. The maximum adsorption capacity was 2 mg g-1, with the percentage of methylene blue adsorbed at 99.84%. Adsorption occurs chemically with an energy of 35.4 kJ mol-1, so it can be determined that it occurs with a monolayer mechanism.http://jos.unsoed.ac.id/index.php/jm/article/view/9443 |
spellingShingle | Anselmus Boy Baunsele Aloisius Masan Kopon Erly Grizca Boelan Maria A. U. Leba Faderina Komisia Maria B. Tukan Maximus M. Taek Gerardus D. Tukan Hildegardis Missa Dwi Siswanta Johnson N. Naat Rahayu Rahayu Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid Molekul |
title | Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid |
title_full | Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid |
title_fullStr | Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid |
title_full_unstemmed | Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid |
title_short | Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid |
title_sort | adsorption of methylene blue using the biosorbent of coconut fiber activated by nitric acid |
url | http://jos.unsoed.ac.id/index.php/jm/article/view/9443 |
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