%0 Generic
%A Christian Paul Partogi Sidabalok, 1317011010
%C UNIVERSITAS LAMPUNG 
%D 2017
%F eprints:29196
%I FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM
%T OPTIMASI ADSORPSI SENYAWA PHENANTHRENE MENGGUNAKAN   NANOSILIKA DARI SEKAM PADI YANG DIFUNGSIONALISASIKAN  MENGGUNAKAN DIPHENYLAMINE     
%U http://digilib.unila.ac.id/29196/
%X Phenanthrene merupakan salah satu senyawa PAH yang termasuk dalam senyawa  polutan lingkungan.  Dalam penelitian ini telah dilakukan uji adsorpsi phenanthrene  menggunakan adsorben nanosilika yang diekstraksi dari sekam padi dan   difungsionalisasikan dengan diphenylamine (DPA). Adsorben Si-DPA  dikarakterisasi dengan SEM-EDX untuk mengetahui morfologi permukaan,   komposisi unsur penyusun dari nanosilika dan adsorben tersebut serta FTIR untuk  mengetahui gugus fungsi dari keduanya.   Uji adsordpsi pada Si-DPA dilakukan menggunakan metode Batch untuk   menentukan massa optimum adsorben, pH optimum, waktu optimum, dan variasi  konsentrasi larutan standar phenanthrene optimum.   Massa opt imum adsorben   yang diperoleh yait u sebesar 4 mg, pH opt imum pada pH 3,  wakt u kontak  optimum se la ma 90 me nit, da n variasi konsentrasi larutan standar phenanthrene  optimum sebesar 15,88 ppm.   Data kinet ika adsorps i phenanthrene pada Si-  DPA cender ung me ngikuti mode l kinet ika adsorps i pse udo orde dua  dengan  nila i koefis ie n kore las i ( R  2  ) sebesar 0,938 dan isoter m adsorps i  phenanthrene pada Si- DPA cenderung mengikuti pola isoter m Fre undlic h   dengan nila i koe fis ie n kore las i (R  2  ) sebesar 0,845        Kata kunci: Nanosilika, sekam padi, PAH adsorben, Si-DPA, adsorpsi,       phenanthrene.      abstract       Phenanthrene is one of PAHs compound which can be classified as environmental  pollutant compounds.  In this research, phenanthrene’s  adsorption test had been done  by using nanosilica as an adsorbent which was extracted from rice husk and   functionalized with diphenylamine (DPA).  Si-DPA adsorbent was characterized by  using SEM-EDX to determine the surface morphology, composition of the elements   from nanosilica and adsorbent and also FTIR characterization to determine the  functional group from both of them.    Adsorption test was done using Batch’s method to determine the optimum mass of   adsorbent, optimum pH, optimum contact time, and optimum phenanthrene’s  standard solution concentration variation.  It was achieved that the optimum mass of   adsorbent was 4 mg, optimum pH was pH 3, opt imum contact  t ime  was 90  minutes, a nd opt imum phenanthrene standard solution concentration variation  was 15,88 ppm.   The data of adsorption kinet ics of phenanthre ne on Si-  DPA te nded to follow t he pseudo second order adsorpt ion kinet ics  with t he  value of corre lat ion coeffic ie nt ( R  2  ) was 0,938 and phe na nt hre ne’s   adsorption isot her m on Si- DPA tended to follow Fre undlic h’s isother m   wit h t he value of corre lat ion coeffic ient (R  2  ) was 0,845.       Keywords :  Nanosilica, rice husk, PAHs, adsorbent, Si-DPA, adsorption,   phenanthrene.