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  <title>BIOSORPSI LOGAM FE MENGGUNAKAN MAKROALGA HIJAU ANGGUR LAUT  (CAULERPA RACEMOSA)</title>
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 <name type="Personal Name" authority="">
  <namePart>Nurmalina Agustini</namePart>
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   <roleTerm type="text">Primary Author</roleTerm>
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  <place>
   <placeTerm type="text">Banda Aceh</placeTerm>
   <publisher>Universitas Syiah Kuala</publisher>
   <dateIssued>2019</dateIssued>
  </place>
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  <languageTerm type="text">Indonesia</languageTerm>
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 <note>ABSTRAK &#13;
 &#13;
Makroalga telah dipelajari pemanfaatan fungsionalnya untuk industri makanan,&#13;
kosmetik, obat-obatan, energi dan dekontaminasi air melalui proses biosorpsi.&#13;
Penelitian ini bertujuan mempelajari biosorpsi logam Fe menggunakan makroalga&#13;
hijau anggur laut (Caulerpa racemosa) dan menentukan kondisi optimum penyerapan&#13;
logam dengan sistem batch. Makroalga C. racemosa dianalisis menggunakan BET&#13;
untuk mempelajari luas permukaan pori yang dimiliki. Hasil BET dari biosorben C.&#13;
racemosa memiliki diameter pori rata-rata 1,7852 nm (mikropori).  Sementara analisis&#13;
FTIR dilakukan untuk melihat gugus fungsi yang berperan dalam proses penyerapan&#13;
logam Fe. Gugus fungsi karboksilat, amina, amida, amino dan sulfonat berperan&#13;
penting dalam proses penyerapan logam Fe (II) dari C. racemosa. Makroalga C.&#13;
racemosa diukur penyerapannya terhadap logam Fe (II) menggunakan&#13;
spektrofotometer UV/Vis pada panjang gelombang 510 nm. Karakterisasi C. racemosa&#13;
dalam mengadsorpsi logam Fe (II) diuji pada beberapa parameter diantaranya waktu&#13;
kontak, pH, konsentrasi logam Fe (II) dan kapasitas serapan adsorpsi. Hasil penelitian&#13;
menunjukkan bahwa kondisi optimum biosorpsi logam Fe (II) memiliki waktu kontak&#13;
optimum 120 menit, pH 11, konsentrasi logam 10 ppm dengan penyerapan sebesar&#13;
76,3%. Kapasitas serapan maksimum (Q&#13;
maks&#13;
) pada model isoterm Langmuir adalah&#13;
14,86 mg/g dan kostanta Freundlich 3,31 mg/g. Hasil yang diperoleh menyarankan&#13;
bahwa adsorpsi yang terjadi pada permukaan C. racemosa bersifat homogen dan&#13;
logam Fe teradsorpsi dalam bentuk monolayer dengan mengikuti model isoterm&#13;
Langmuir. &#13;
Kata Kunci : Biosorpsi, Caulerpa racemosa, logam Fe,   Isoterm langmuir, dan&#13;
Freundlich  &#13;
&#13;
&#13;
&#13;
ABSTRACT&#13;
Macroalgae have been studied the functional for use in the food, cosmetic, medicine, &#13;
energy and water decontamination industries through biosorption processes. The goal&#13;
of the research is to study the biosorption of Fe metal using of sea grape green algae&#13;
(Caulerpa racemosa) and determine the optimum condition of metal absorption with a&#13;
batch system. C. racemosa macroalgae was analyzed using BET to study the surface&#13;
area of the pore. BET results from C. racemosa biosorbent have an average pore&#13;
diameter of 1.7852 nm (micropore). FTIR analysis was conducted to see the functional&#13;
groups that play a role in the process of Fe metal absorption. The carboxylic, amine,&#13;
amide, amino and sulfonate functional groups play an important role in the absorption&#13;
of Fe (II) from C. racemosa. The macroalgae absorption was measured against Fe (II)&#13;
metal using a UV / Vis spectrophotometer at a wavelength of 510 nm. Characterization&#13;
of C. racemosa in adsorbing Fe (II) metal was tested on several parameters including&#13;
contact time, pH, Fe (II) metal concentration and absorption capacity. The results&#13;
showed that the optimum conditions for Fe (II) biosorption had an optimum contact&#13;
time of 120 minutes, pH 11, metal concentration of 10 ppm with absorption of 76,3%.&#13;
The maximum absorption capacity (Qmax) in the Langmuir isotherm model is 14,86&#13;
mg / g and Freundlich constanta 3,31 mg / g. The results suggested that the adsorption&#13;
that occurs on the surface of C. racemosa is homogeneous and Fe metal adsorbed in a&#13;
monolayer by following the Langmuir isotherm model. &#13;
Keyword : Biosorption, C. racemosa, Fe, Isotherm Langmuir and Frundlich&#13;
&#13;
&#13;
</note>
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  <physicalLocation>ELECTRONIC THESES AND DISSERTATION Universitas Syiah Kuala</physicalLocation>
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