Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Jl. Prof. Soedarto, SH., Tembalang, Semarang, Indonesia
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@article{JKSA16707, author = {Ika Yunita and Muhammad Djunaidi and Abdul Haris}, title = {Pemisahan Ion Logam Timbal(II) Menggunakan Resin Terimpregnasi (SIR) dengan D2EHPA}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {20}, number = {2}, year = {2017}, keywords = {SIR Pb; D2EHPA; Resin Terimpregnasi}, abstract = {Telah dilakukan penelitian Pemisahan Ion Timbal (II) Menggunakan Resin terimpregnsai (SIR) dengan D2EHPA. Pemisahan ion timbal(II) dari larutan dilakukan dengan menggunakan resin anion basa kuat (counter ion NO 3 - ) dan D2EHPA (Asam di-2-etilheksilfosfat). Penelitian ini dilakukan untuk menentukan kondisi optimum pembuatan dan penggunaan resin terimpregnasi (SIR) dengan D2EHPA pada pemisahan ion timbal(II) dari larutan. Penelitian ini menggunakan teknik batch dan teknik kolom. Teknik batch dilakukan untuk menentukan pengaruh konsentrasi D2EHPA terhadap persentase adsorpsi, waktu kontak terbaik pada resin terimpregnasi, kapasitas resin, pengaruh pH larutan terhadap persentase adsorpsi, serta pengaruh pH backwash terhadap persentase recovery ion timbal(II). Teknik kolom dilakukan untuk pemisahan ion timbal(II) pada larutan sampel. Kecepatan alir kolom diatur konstan pada 2 mL/menit. Ion timbal(II) yang tidak teradsorpsi oleh resin terimpregnasi dianalisis secara kuantitatif dengan spektroskopi serapan atom pada panjang gelombang 283 nm. Hasil penelitian menunjukkan bahwa konsentrasi D2EHPA terbaik pada 1x10 -3 M untuk setiap 50 gram resin anion basa kuat. Waktu kontak pada menit ke 30 sudah menunjukkan hasil yang cukup baik dan optimal pada menit ke 75 dari variasi waktu kontak 0-180 menit. Kapasitas resin terimpregnasi diperoleh 0,4817 mg Pb2+/g resin. Daerah pH terbaik larutan sampel ion timbal(II) pada pemisahan ion timbal(II) diperoleh pada pH 5 dengan persentase adsorpsi 99,52%. Persentase recovery ion timbal(II) yaitu 64,10% pada pH backwash 3. Dengan teknik kolom, semakin lama waktu alir semakin banyak ion logam timbal(II) yang tidak teradsorpsi oleh kolom.}, issn = {2597-9914}, pages = {68--73} doi = {10.14710/jksa.20.2.68-73}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/16707} }
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