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Journal : Makara Journal of Science

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 A. Taufik Arief Aam Rusydiana, Aam Abd. Rahman Abdillah, Fardan Abdul Wahab Mohammad, Abdul Abdullah, Mahmoud Addy Rachmat Adiara Firdhita Alam Nasyrah Adipati Napoleon Ady Mara, Ady Afreni Hamidah Agustiarini, Vitri Ahmad Ahmad Akbar, Firman Muhammad Abdurrohman Aldes Lesbani Alfarado, Daniel Amri Amri Anang Wahid M.Diah Andi Dinul Islam Firdaus Andi Kiki Patmawati Anggreini, Fevica Dwi Aprianti, Tine Ariandi, Muhammad Amir Arief Mufraini, Arief Arkanudin Arkanudin Armaini, Sri Atapukan, Ruhana Awaliyah, Annisa Nurhikmah Ayuandiani, Wulan Bambang Yudono Batuallo, Ignasia Debbye Bayinah, Ai Nur Bijak Riyandi Ahadito Bunyamin, A. Bunyamin, Andi Bustan Bustan, Bustan Cendhikalistya, Gustrin Oktaviayu Dahliana, Andi Besse Danovan, Seno David Bahrin Dedi Rohendi Desnelli Desnelli Dhamayanti, Erika Dwi Surti Junida Dwipayana, Hendra Eddy Ibrahim Elisa Nurnawati Fatma Fatma Fauziah, Fenty Ferlinahayati Ferlinahayati Gaffar, Farida Giri Dwinanda Hamdani, Fikri Hartomi Maulana Hasanudin Hasanudin Hasanudin Hayati, Tiara Nur Heni Yohandini herlan junaidi, herlan Hidayat, Raihan Hildawati Hildawati, Hildawati Ibrahim Ibrahim Ida Ayu Putu Sri Widnyani Ikram, Ahmad Indriyanti Izzudin, Muhammad Jam'an, Andi Jamiah Jamiah, Jamiah Julinar Julinar Jumadi Jumadi Kasnelly, Sri Kuswandi Kuswandi Lambang Basri Said Leily Nurul Komariah Madi , Minhajuddin Madi, Abdullah Habar Maesarah, Aolia Mappanganro, Mappanganro Marsuq Marsuq Maspaeni Masud, Masdar Meiliza, Cici Miftahul Jannah Minhajuddin Madi Mirani, Mirani Mirna Apriani Mirna Mirna mohamad jamil Muhammad Faisal Muhammad Faizal Muhammad Hendri Muhammad Nur Muhammad Nur Ihsan, Muhammad Nur Muhammad Tahir Muhammad Taufiq Muhammad Yunus Muhammad Yusuf Muhammad, Firman Muharam, Akbar Malik Muhyin, Muhyin Musifa, Eva Mustakim Mustakim Nafis, Muhammad Cholil Najma Annuria Fithri, Najma Annuria Nani Nagu Nova Yuliasari Novia Novia Novianti, Omega Nurkholis, Lalu Moh. Nurlailia, Umi Nurlisa Hidayati Nurusshobah, Nurusshobah Okzani, Syahrial Paizin, Khaerul Pardi, M. Habib Husnial Pawesty, Enik Poedji Loekitowati Hariani Pratama, Syahrul Putra, Arya Nirwansyah Dwi Rahim, Muhammad Rafiiy Rahmawati, Aisha Maulia Rahmawati, Rahmawati Rasiam, Rasiam rendana, muhammad Restika, Indah RINI RINI Rizki, Widya Twiny Rizkiani, Delisa SABARUDDIN, . Sabbahatun, Sri Safitri, Siska Said, Muhammad Ide Sakmawati, Sakmawati Sakur Jaelani, Muammad Sapri, Rasti Satria Jaya Priatna, Satria Jaya Sayakhmad, Olimov Selfiani Selfiani, Selfiani Selpiana, Selpiana Siti Asiah Siti Rozaimakh Sheikh Abdullah, Siti Solly Aryza SR, Naharuddin Sri Mulyani Sabang Sri Suryani Sry Muliyani Subroto Subroto Suci Wulandari Sudirman, San Suhardiman Suhardiman Suheyanto Suheryanto Sulaiman, Adibah Suparta, Munzier Suprani, Yun - Surahman Amin, Surahman Suroso, Eddy Suswanto, Riza Eko Suyuti DM, Yusnan Syahrir, Dimas Kenn Syarif Hidayattullah, Ahmad Syarkawi, Mukhtar Thahir Tahir, Muh. Tarmizi Taufiq Hanafi , Azizan M Tenriware, Tenriware Tikawati Tikawati, Tikawati Tsani, Musmuliadi Umiyati Umiyati, Umiyati Urmila, Rafiatul Usnawati , Ulya Vilantina, Vilantina Wahana, Syainullah Wahyudi, Ickhsanto Widia Purwaningrum Wijaya, Yonggi Yama, Indo Yazila, Syukran Yudi Astuti, Rahma Yun Suprani, Yun Yusran Haskas Yusro Hakimah, Yusro Zahra, Inas Afifah Zainal Fanani