A New Superabsorbent Polymer Derived from Acrylamide and Fine Coal
The fine coal was a by-product of the mechanical coal processing used at the coal mine, that can be converted to added value materials. The objective of this study to obtain the new superabsorbent polymers (SAP) derived from fine coal. The SAP synthesis was conducted via a free radical polymerizatio...
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| Format: | Article |
| Language: | English |
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Universitas Syiah Kuala, Chemical Engineering Department
2024-12-01
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| Series: | Jurnal Rekayasa Kimia & Lingkungan |
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| Online Access: | https://jurnal.usk.ac.id/RKL/article/view/37341 |
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| author | Mohammad Khotib Zainal Alim Mas'ud Nurul Eriza Ian Subastiar M Fikry Nasrudin |
| author_facet | Mohammad Khotib Zainal Alim Mas'ud Nurul Eriza Ian Subastiar M Fikry Nasrudin |
| author_sort | Mohammad Khotib |
| collection | DOAJ |
| description | The fine coal was a by-product of the mechanical coal processing used at the coal mine, that can be converted to added value materials. The objective of this study to obtain the new superabsorbent polymers (SAP) derived from fine coal. The SAP synthesis was conducted via a free radical polymerization with various percentage of fine coal is 10; 25; and 40% of acrylamide and fine coal total. The copolymerization was carried out for 3 h at 70 °C, followed by subsequent saponification with 1 M NaOH for 2 h. The superabsorbent composite was characterized by Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). FTIR spectra revealed that the acrylic acid was successfully grafted onto the fine coal backbone. As shown by SEM imaging, the resulting surface was homogeneous and exhibited an interconnected pore structure. The maximum absorption capacity was found for SAP C2, which had a composition of 25% fine coal, 75% acrylamide, 0.11% N,N-methylene-bis-acrylamide (MBA), and 1.11% ammonium persulfate. The absorption capacities for the unsaponified and saponified SAPs were 42.36 and 617.86 g/g, respectively. The maximum water absorption capacity of the superabsorbent polymer was achieved at pH 6.5. Based on water absorption capacity, this product is suitable for soil conditioner or agricultural application. |
| format | Article |
| id | doaj-art-0fce54e407a34e3caa6b3e154effdba7 |
| institution | DOAJ |
| issn | 1412-5064 2356-1661 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Universitas Syiah Kuala, Chemical Engineering Department |
| record_format | Article |
| series | Jurnal Rekayasa Kimia & Lingkungan |
| spelling | doaj-art-0fce54e407a34e3caa6b3e154effdba72025-08-20T03:11:40ZengUniversitas Syiah Kuala, Chemical Engineering DepartmentJurnal Rekayasa Kimia & Lingkungan1412-50642356-16612024-12-0119217118010.23955/rkl.v19i2.3734119241A New Superabsorbent Polymer Derived from Acrylamide and Fine CoalMohammad Khotib0Zainal Alim Mas'ud1Nurul Eriza2Ian Subastiar3M Fikry Nasrudin4Department of Chemistry, Faculty of Mathematics & Natural Science, IPB University, Bogor 16680, Indonesia Integrated Laboratory, IPB University, Bogor 16129, IndonesiaDepartment of Chemistry, Faculty of Mathematics & Natural Science, IPB University, Bogor 16680, Indonesia Integrated Laboratory, IPB University, Bogor 16129, IndonesiaDepartment of Chemistry, Faculty of Mathematics & Natural Science, IPB University, Bogor 16680, IndonesiaIntegrated Laboratory, IPB University, Bogor 16129, IndonesiaIntegrated Laboratory, IPB University, Bogor 16129, IndonesiaThe fine coal was a by-product of the mechanical coal processing used at the coal mine, that can be converted to added value materials. The objective of this study to obtain the new superabsorbent polymers (SAP) derived from fine coal. The SAP synthesis was conducted via a free radical polymerization with various percentage of fine coal is 10; 25; and 40% of acrylamide and fine coal total. The copolymerization was carried out for 3 h at 70 °C, followed by subsequent saponification with 1 M NaOH for 2 h. The superabsorbent composite was characterized by Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). FTIR spectra revealed that the acrylic acid was successfully grafted onto the fine coal backbone. As shown by SEM imaging, the resulting surface was homogeneous and exhibited an interconnected pore structure. The maximum absorption capacity was found for SAP C2, which had a composition of 25% fine coal, 75% acrylamide, 0.11% N,N-methylene-bis-acrylamide (MBA), and 1.11% ammonium persulfate. The absorption capacities for the unsaponified and saponified SAPs were 42.36 and 617.86 g/g, respectively. The maximum water absorption capacity of the superabsorbent polymer was achieved at pH 6.5. Based on water absorption capacity, this product is suitable for soil conditioner or agricultural application.https://jurnal.usk.ac.id/RKL/article/view/37341superabsorbentfine coalacrylamidepolymer |
| spellingShingle | Mohammad Khotib Zainal Alim Mas'ud Nurul Eriza Ian Subastiar M Fikry Nasrudin A New Superabsorbent Polymer Derived from Acrylamide and Fine Coal Jurnal Rekayasa Kimia & Lingkungan superabsorbent fine coal acrylamide polymer |
| title | A New Superabsorbent Polymer Derived from Acrylamide and Fine Coal |
| title_full | A New Superabsorbent Polymer Derived from Acrylamide and Fine Coal |
| title_fullStr | A New Superabsorbent Polymer Derived from Acrylamide and Fine Coal |
| title_full_unstemmed | A New Superabsorbent Polymer Derived from Acrylamide and Fine Coal |
| title_short | A New Superabsorbent Polymer Derived from Acrylamide and Fine Coal |
| title_sort | new superabsorbent polymer derived from acrylamide and fine coal |
| topic | superabsorbent fine coal acrylamide polymer |
| url | https://jurnal.usk.ac.id/RKL/article/view/37341 |
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