Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
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@article{JKSA18252, author = {Wawan Prasetyo and Khabibi Khabibi and Didik Widodo}, title = {Adsorpsi Ion Logam Mg(II) Menggunakan Kitosan Termodifikasi Asam Askorbat}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {17}, number = {2}, year = {2014}, keywords = {Kitosan; adsorpsi; kitosan-asam askorbat; Mg(II)}, abstract = {Modifikasi kitosan-asam askorbat dan pemanfaatannya sebagai adsorben ion logam Mg(II), ion logam Cd(II), dan campuran ion logam Mg(II)-Cd(II), juga dilakukan penentuan pH dan waktu kontak optimum untuk adsorpsi ion Mg(II), serta mengetahui kemampuan adsorpsi kitosan-asam askorbat terhadap ion Mg(II) telah dilakukan. Tahapan penelitian terdiri dari penentuan derajat deasetilasi dari kitosan awal, proses re-deasetilasi, dan penentuan derajat deasetilasi kitosan dari hasil re-deasetilasi menggunakan FTIR. Setelah itu kitosan hasil re-deasetilasi dimodifikasi menggunakan asam askorbat dan dianalisis menggunakan FTIR dan SEM. Kitosan asam-askorbat digunakan untuk menentukan pH dan waktu kontak optimum adsorpsi terhadap ion logam Mg(II) serta kemampuannya sebagai adsorben pada ion logam Mg(II), Cd(II), dan campuran ion logam Mg(II)-Cd(II). Ditemukan bahwa pH dan waktu kontak optimum adsorpsi kitosan-asam askorbat terhadap ion logam Mg(II) yaitu pada pH 5 dan waktu kontak 12 jam. Kemampuan adsorpsi pada uji ion logam Mg(II) sebesar 24,66 mg/g, Cd(II) sebesar 24,71 mg/g serta kemampuan adsorpsi kitosan asam-askorbat pada uji campuran ion logam Mg(II) dan Cd(II), didapatkan Mg(II) sebesar 24,45 mg/g, Cd(II) sebesar 24,61 mg/g.}, issn = {2597-9914}, pages = {70--74} doi = {10.14710/jksa.17.2.70-74}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/18252} }
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