Abstract
It has been conducted a research about the utilization waste of tofu as adsorbent of tartrazine dye. Utilization waste of tofu as adsorption because tofu contains protein which has the power adsorption of amino acids that form a zwitter ion. The purpose of this study was to determine the adsorption process and adosrption kinetics model of tartrazine dye by waste of tofu as adsorbent. Making the adsorbent is done by making waste of tofu into powder with a size of 100 mesh. The method used in the analysis of tartrazine dye is using UV-Vis. Adsorption of of tartrazine dye using waste of tofu at concentrations of 50 ppm and a contact time of 80 minutes with weight adsorbent 0.3 g. The two isotherms were used that Langmuir isotherm and Freundlich isotherm, the adsorption studies of tartrazine dye adsorbent waste of tofu follow Freundlich adsorption isotherms with a correlation coefficient (R2) of 94.4%, KF is 0.0026 mg/g and n is 0.5621. Adsorption kinetics of of tartrazine dye adsorbent waste of tofu following the model of adsorption Ho pseudo-second order with a correlation coefficient (R2) of 100%, Xe is 1.7761 mg/g and k2,ads is -0.6550 g/mg minutes. The mechanism adsorption of of tartrazine dye with waste of tofu as adsorbent is chemisorpsi process.
Highlights
It has been conducted a research about the utilization waste of tofu as adsorbent of tartrazine dye
Adsorption of Basic Dye onto Carbon prepared from Durian Shell: Studies of Adsorption Equilibrium and Kinetics
Kinetika Adsorpsi Logam Kromium (Cr) menggunakan Limbah Ampas Tahu sebagai Adsorben (Skripsi), Universitas Pattimura, Ambon, 2017
Summary
Kinetika adsorpsi zat warna tartrazina pada kitin dan kitosan optimum pada pH 9,0 dan mengikuti proses orde dua semu [8]. Kitosan berderajat deasetilasi tinggi juga telah digunakan sebagai adsorbent zat warna tartrazina, dengan hasil yang diperoleh yaitu mengikuti isoterm adsorpsi Freundlich dengan nilai KF sebesar 2,64 dan n sebesar 0,84 serta model kinetika yang diikuti oleh adsorpsi zat warna tartrazina dengan kitosan adalah model kinetika orde dua semu dengan tetapan laju adsorpsi (k2,ads) sebesar 0,052 g mg-1 menit-1 dan kapasitas adsorpsi maksimum adsorben (Xe) sebesar 4,22 mg g1 [9]. Pemanfaatan limbah tahu ini sebagai penyerap (pengadsorpsi) karena tahu mengandung protein yang memiliki daya serapan dari asam-asam amino yang membentuk zwitter ion (bermuatan dua). Kadmiun tidak diperoleh [10] Pada penelitian ini memanfaatkan limbah ampas tahu sebagai adsorben dalam menjerap zat warna tartrazina dan bertujuan untuk menentukan proses adsorpsi dan model kinetika adsorpsi zat warna tartarzina oleh limbah ampas tahu
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
