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All Journal STUDIA ISLAMIKA Jurnal Inovasi Pendidikan Kimia Kreano, Jurnal Matematika Kreatif-Inovatif Bulletin of Chemical Reaction Engineering & Catalysis The Journal of Pure and Applied Chemistry Research Science and Technology Indonesia Indonesian Journal of Chemistry Communications in Science and Technology Molekul: Jurnal Ilmiah Kimia Jurnal Scientia Indonesia SRIWIJAYA JOURNAL OF ENVIRONMENT Indonesian Journal of Environmental Law and Sustainable Development Bulletin of Chemical Reaction Engineering & Catalysis Greensusmater Studia Islamika
Tarmizi Taher
Department Of Environmental Engineering, Institut Teknologi Sumatera, Jl. Terusan Ryacudu, Way Hui, Kecamatan Jati Agung, Lampung Selatan 35365, Indonesia
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health

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Journal : Communications in Science and Technology

 1 
Removal of Cr(VI) from aqueous solution by biochar derived from rice husk Mohadi, Risfidian; Palapa, Neza Rahayu; Taher, Tarmizi; Siregar, Patimah Mega Syah Bahar Nur; Normah; Juleanti, Novie; Wijaya, Alfan; Lesbani, Aldes
Communications in Science and Technology Vol 6 No 1 (2021)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.6.1.2021.293

Abstract

In this work, biochar produced from Indonesian rice husks. Then used as adsorbent of Cr(VI) in aqueous solution. The XRD pattern of biochar showed the characterization pattern at 23ยบ (002) reflection, appearance of silicate oxide, and the carbon vibrations. The surface area and SEM morphologies confirmed that after pyrolysis treatment the surface of rice husk has changed. The surface area of biochar increased after thermal treatment. The adsorption study of Cr(VI) by biochar demonstrate 2nd-order reaction, and Langmuir isotherm models. The maximum adsorption capacity of biochar derived rice husk to adsorb Cr(VI) is 161.290 mg/g, and biochar showed the good potential as reuseable adsorbent to remove heavy metal in aqueous solution.
Mg/Cr-(COO)22- layered double hydroxide for malachite green removal Palapa, Neza Rahayu; Badri, Arini Fousty; Mardiyanto; Mohadi, Risfidian; Taher, Tarmizi; Lesbani, Aldes
Communications in Science and Technology Vol 7 No 1 (2022)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.7.1.2022.851

Abstract

Mg/Cr layered double hydroxide (LDH) was prepared and modified using an intercalation of oxalate anions ((COO)22-) to form Mg/Cr-(COO)22. The materials were then investigated to malachite green removal to determine the adsorption ability. Furthermore, the desorption process and regeneration of adsorbent were systematically conducted. The adsorption of green malachite on Mg/Cr- LDH and Mg/Cr-(COO)22- materials fitted to the pseudo-second-order (PSO) kinetic model and Freundlich isotherm model with an adsorption capacity of 33.784 mg/g (333K) for Mg/Cr LDH and 64.516 mg/g (333K) for Mg/Cr-(COO)22-. Thermodynamic data showed that the adsorption process was spontaneous and endothermic. Also, the appropriate reagent desorption study was found as hydrochloric acid and material regeneration studies exhibited a good recycling performance after 3 times cycles and, the Mg/Cr-oxalate showed a good performance for malachite green adsorption. It can be concluded that Mg/Cr--(COO)22- can adsorb the dye stuffs effectively.
Co-Authors Abelta, Gita Aldira Addy Rachmat Al Qadri, Latif Aldes Lesbani Aldes Lesbani Alfan Wijaya Alfan Wijaya Anastasya, Yohana Andika Arisetyawan, Andika Andreas, Roy Asagabaldan, Meezan Ardhanu Badri, Arini Fousty Bakri Rio Rahayu Bakri Rio Rahayu Banna, Sabri Dedi Rohendi Eka Nurfani Fahmi, Achmad Gus Febrina, Melany Ferlinahayati Ferlinahayati Hadi Teguh Yudistira, Hadi Teguh Haloho, Trivendi Irfan Fauzi Jeri Ramadhan Juleanti, Novie Mardiyanto Maulana, Sena Mikha Meilinda Christina Muhammad Said Muhammad Said Muhtar, Sephia Amanda Munandar, Andika Normah Normah Normah Normah, Normah Novie Juleanti Novie Juleanti Nurlisa Hidayati Nurlisa Hidayati Nyanyu Ummu Hani Pasaribu, Joshua Leonardo Patimah Mega Syah Bahar Nur Siregar Pradana, Aditya Bagus Putri Maharani Rabelia Juladika Sayeri Rahayu Saraswati, Ayu Rajak, Abdul Ramadhan, Jeri Rianjanu, Aditya Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Roy Andreas Sidiq, Ahmad Nur Sipahutar, Wahyu Solafide Siregar, Patimah Mega Syah Bahar Nur Suyatman Suyatman Wijaya, Alfan Yosi Saria Yunita Irianty