1Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Jl. Prof. Soedarto, SH., Tembalang, Semarang, Indonesia
2Jurusan Kimia, Institut Teknologi Bandung, Indonesia
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@article{JKSA18879, author = {Muhammad Djunaidi and Buchari Buchari}, title = {Mekanisme Transport Lantanum Melalui Membran Cair Berpendukung (SLM) dengan Senyawa Pengemban campuran Tributyl Phosphate (TBP) dan Di(2-Etyl-Hexyl) Phosporic Acid (D2EHPA)}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {3}, number = {1}, year = {2000}, keywords = {Mekanisme Transport; Lantanum; SLM; Senyawa Pengemban}, abstract = {Telah dilakukan penelitian tentang mekanisme transpor logam lantanum melalui membran cair berpendukung (SLM). Sebagai membran pendukung digunakan politetrafluoroetilen (PTFE) yang diaktifkan dengan cara merendamnya dalam campuran senyawa pengemban asam di-2-etilheksilfosfat (D2EHPA) dan tributilfosfat (TBP) dengan pelanit kerosene. Efek sinergi antara kedua senyawa pengemban tersebut dipelajari dengan SLM. Pemantauan konsentrasi logam lantanum di fasa air dilakukan secara spektrofotometri UV-Vis dengan menggunakan natrium alizarin sulfonat (NAS) sebagai senyawa pembentuk warna dan diukur pada panjang gelombang 528 nm. Transpor melalui SLM dipengaruhi oleh gradien konsentrasi, yaitu pH, kekuatan ion, serta senyawa pengemban. Transpor logam lantanum dengan senyawa D2EHPA memperlihatkan keterlibatan ion hidrogen, dan tidak untuk ion nitrat. Hal ini berlawanan dengan TBP. Sedangkan transpor dengan campuran kedua pengemban (perbandingan 0,2 MTBP 0,8 M D2EHPA) memperlihatkan sifat seperti komponen utamanya (D2EHPA). Senyawa pengemban campuran TBP-D2EHPA memberikan efek sinergi denganbertambahnya fraksi mol D2EHPA.}, issn = {2597-9914}, pages = {163--170} doi = {10.14710/jksa.3.1.163-170}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/18879} }
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