Pengaruh pH dan Waktu Kontak Terhadap Adsorpsi Cr(VI) dalam Larutan Menggunakan Karbon Aktif dari Biji Trembesi (Samanea saman)

Nurfitria Amalia, Ita Ulfin
Submission Date: 2015-08-05 20:39:59
Accepted Date: 2016-01-21 12:10:47

Abstract


Karbon aktif dibuat dari biji trembesi (Samanea saman) yang digunakan sebagai adsorben ion Cr(VI) dalam larutan. Biomassa biji trembesi diaktivasi menggunakan H3PO4 5% (v/v) dan  dikarbonisasi pada suhu 300 ºC selama 45 menit. Proses adsorpsi dilakukan menggunakan metode batch, dengan variasi pH awal larutan dan waktu kontak. Hasil percobaan adsorpsi terhadap adsorbat ion Cr(VI) diperoleh kondisi optimum pada pH 2 dengan prosentase adsorpsi sebesar 17,65 % dan waktu kontak optimum selama 60 menit dengan prosentase adsorpsi sebesar 18,91 %. Adsorpsi ion Cr(VI) mengikuti model kinetika orde dua semu (k4 = 0,0,918 (g/mg)/menit)

Keywords


adsorpsi; ion Cr(VI); karbon aktif; biji trembesi

CC Licencing


Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).

Refbacks

  • There are currently no refbacks.


Creative Commons License
Jurnal Sains dan Seni ITS by Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at https://ejurnal.its.ac.id/index.php/sains_seni.