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All Journal International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Journal of Degraded and Mining Lands Management The Journal of Pure and Applied Chemistry Research IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Biomedical Journal of Indonesia Science and Technology Indonesia Jurnal Penelitian Sains Indonesian Journal of Chemistry Communications in Science and Technology Molekul: Jurnal Ilmiah Kimia Jurnal Gema Ngabdi Jurnal Abdi Insani Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat SRIWIJAYA JOURNAL OF ENVIRONMENT Makara Journal of Science Jurnal Pepadu Jurnal Ruaya : Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan Aceh International Journal of Science and Technology Molekul: Jurnal Ilmiah Kimia Bulletin of Chemical Reaction Engineering & Catalysis Analit: Analytical And Environmental Chemistry
Poedji Loekitowati Hariani
Department Of Chemistry, Universitas Sriwijaya
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Journal : Makara Journal of Science

 1 
Cr (III)-Doped Bentonite: Synthesis, Characterization and Application for Phenol Removal Purwaningrum, Widia; Vilantina, Vilantina; Rizki, Widya Twiny; Desnelli, Desnelli; Hariani, Poedji Loekitowati; Said, Muhammad
Makara Journal of Science Vol. 25, No. 2
Publisher : UI Scholars Hub

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Abstract

Study of doping process of metal oxide Cr(III) onto bentonite for phenol removal has been done. The purpose of this study was to increase the capacity and effectiveness of bentonite adsorption.The doped bentonite was characterized using XRD, SEM-EDX and FT-IR spectrophotometer analysis. XRD characterization result showed an angle shift (2θ) characteristic at1.609°. The SEM-EDX characterization result showed that bentonite as control have a more gaps than Cr(III)-doped bentonite. Based on EDX result, the Al element decreased from 7.53% to 3.76%, Si from 19.84% to 10.23% and appeared Cr element 2.06%, The FT-IR characterization result showed no significant friction in the spectrum so it can be identified as physical adsorption. The adsorption of phenol was applied at pHpzc, which for bentonite as control was applied at pH 4 and Cr(III)- doped bentonite was applied at pH 8. The phenol adsorption rate fitted to pseudo-second-order and it was found that the equilibrium data was best followed by Freundlich isotherm model, the amount of adsorption rate constant (k) and adsorption capacity (Qe) was 0.0024 g.mg-1min-1 and 16.95 mg/g. The Enthalpy (ΔH) and entropy (ΔS) values decrease with increasing phenol concentration and the positive free energy value was indicated that the proccess was nonspontaneous because there has been an equilibrium state. Based on the adsorption result, it can be concluded that the doping method can produce better bentonite performance to adsorb phenol.
Co-Authors Abdullah Abdullah Addy Rachmat Addy Rachmat Ahmad Fatoni Ahmad Fatoni Ahyati Fadilah Aldes Lesbani Aldi Herbanu Amallia, RA Hoetary Tirta Amri, Nanda Hasanul Annisa Filantropie Aria Septi Handayani Aroef, Hukmanan Rais Asia Asia Afriyani Astri Nurmayansih Bijak Riyandi Ahadito Damayanti Damayanti Dedi Rohendi Denada, Laellia Desneli Desneli Desnelli Desnelli Eddy Ibrahim Elfita Elfita Elfita Elfita Endri Junaidi Evi Yuliana, Evi Fahma Riyanti Fatma Fatma Febrina Sari Ferlinahayati Ferlinahayati Handayani Citra Pratiwi Hanifa, Hanifa Marisa Harmida Harmida Hasanudin Hasanudin Heni Oktaviani Heni Yohandini Hermansyah Hermansyah Hermansyah Hermansyah Hermansyah Hermansyah Hermansyah Herpandi . Hery Widijanto Hesti Ratnasari, Hesti Hidayat, Bachtari Alam Hilda Zulkifli Indah Hamida Iqlima Amelia Irfannuddin Irfannuddin Izzati Izzati Julinar Julinar Juswardi Juswardi Kasmiarti, Getari Kimur, Melviana Violetta Lamin, Safrina Leily Nurul Komariah Lilian Novarika M. B. Prayitno Maulana Yusuf Melly Oktaria Mgs. Irsan Saleh Mifthahul Jannah Muhammad Faizal Muhammad Faizal Muhammad Irsan Saleh Muhammad Ramdan Abdul Mannan Muhammad Said Muhammad Said Muhammad Said Muhammad Said Muhammad Said MUHAMMAD SAID Muryati Muryati Mustafa Kamal Nabila Aprianti Nina Tanzerina Nirmalasary, Try Nensy Nita Aminasih Novia Novia Nur Hanis Hayati Hairom Nurlisa Hidayati Nurlisa Hidayati Purwitasari, Listiyani Putri Erlyn Rani Nawang Sari Ratu Wulandari Permatasari Putri Risfidian Mohadi Risfidian Mohadi Riski Dita Asmara Rizki Indah Putri Rizki, Widya Twiny Robert Sibarani, Robert Robiyanto Hendro Susanto Sabila Yunita Safira, Vika Putri Safitri, Bella Salni Salni Salni Salni Salni Salni Salni Salni Salni Salni Sari, Febrina Setiyawan, Bambang Dwi Shella Santika Damarril Singgih Tri Wardana Sisca, Vivi Siti Chodijah Siti Nuraini Sri Hartika Subroto Subroto Suheyanto Suheryanto Susila Arita Vilantina, Vilantina Widia Purwaningrum Wiwin Sepriani Yogi Astrada Zainal Arifin Zazili Hanafiah Zulfikar Zulfikar