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Journal : VALENSI

The Analysis of Low-Cost Pb(II) Adsorbents using Batch Method of Solid-Phase Spectrophotometry Sulistyo Saputro; Ashadi Ashadi; Lina Mahardiani; Nurma Yunita Indriyanti; Maria Ciptaning Sabdo Kawedhar; Wima Pudya Ajunda
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 7, No. 1, May 2021
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v7i1.18363

Abstract

Heavy metal pollutants contained in wastewater can cause health problems for living things around. Minor to fatal health problems can occur due to heavy metal poisoning, mainly caused by Pb(II) metal.. This study aimed to determine the optimum mass combination of rice husk and zeolite to adsorb Pb(II) metal ions in simulated wastewater, and to determine the sensitivity of the analysis method. This study used Solid Phase Spectrophotometry (SPS) to determine the decrease in Pb(II) metal ion levels after being adsorbed by activated carbon from rice husks and zeolites. This study used an experimental method with simulated wastewater samples containing Pb(II) at several concentrations. Pb(II) adsorption processes by rice husk and natural zeolite used various adsorbents' mass ratios. The adsorbents were characterized by using Fourier-Transform Infra-Red (FTIR) Spectrophotometry. Pb(II) analysis during adsorption processes used a single beam UV-visible Spectrophotometer for Solid-Phase Spectrophotometry. This study indicates that the combination of adsorbent from rice husk and natural zeolite can properly adsorb Pb(II) ions with an adsorption capacity of 0.75 μg g-1 and 0.025 μg L-1 for the LoD of the instrument.
Modification of Coal Fly Ash Waste into Manganese-Oxide-Coated-Zeolite (MOCZ) to Adsorb Heavy Metal Ions Ni2+ Saputro, Sulistyo; Mahardiani, Lina; Susilowati, Endang; Nurhayati, Nanik Dwi; Ciptonugroho, Wirawan; Windiasty, Ananda Dea; Prihantoro, Alita Selvi
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.35794

Abstract

High consumption of coal as a source of electrical energy in Indonesia has resulted in piles of waste from coal burning, namely fly ash, which can damage the environment and harm health. Fly ash contains main oxides, namely silica (SiO2) and alumina (Al2O3), whose components are similar to zeolite, so they can be synthesized into zeolite-like material (ZLM) which can be used as an adsorbent for heavy metal Ni2+. Therefore, this research discussed the characterization of manganese-oxide-coated-zeolite (MOCZ) from fly ash waste as a heavy metal adsorbent. The research procedure consisted of preparation, purification, and activation stage of fly ash to obtain fly ash that is free from impurities, the stage of making sodium silicate and sodium aluminate, and zeolite synthesis. The resulting zeolite was then coated with manganese oxide to expand the surface area of the zeolite and increase the ability of zeolite to adsorb heavy metal Ni2+. The research results showed that fly ash waste that was coated with manganese oxide can adsorb heavy metal Ni2+. The adsorption of the Ni2+ metal ion solution by zeolite with MOCZ modification is in line with the pseudo-second-order kinetic and Langmuir isotherm.
Modification of Coal Fly Ash Waste into Manganese-Oxide-Coated-Zeolite (MOCZ) to Adsorb Heavy Metal Ions Ni2+ Saputro, Sulistyo; Mahardiani, Lina; Susilowati, Endang; Nurhayati, Nanik Dwi; Ciptonugroho, Wirawan; Windiasty, Ananda Dea; Prihantoro, Alita Selvi
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.35794

Abstract

High consumption of coal as a source of electrical energy in Indonesia has resulted in piles of waste from coal burning, namely fly ash, which can damage the environment and harm health. Fly ash contains main oxides, namely silica (SiO2) and alumina (Al2O3), whose components are similar to zeolite, so they can be synthesized into zeolite-like material (ZLM) which can be used as an adsorbent for heavy metal Ni2+. Therefore, this research discussed the characterization of manganese-oxide-coated-zeolite (MOCZ) from fly ash waste as a heavy metal adsorbent. The research procedure consisted of preparation, purification, and activation stage of fly ash to obtain fly ash that is free from impurities, the stage of making sodium silicate and sodium aluminate, and zeolite synthesis. The resulting zeolite was then coated with manganese oxide to expand the surface area of the zeolite and increase the ability of zeolite to adsorb heavy metal Ni2+. The research results showed that fly ash waste that was coated with manganese oxide can adsorb heavy metal Ni2+. The adsorption of the Ni2+ metal ion solution by zeolite with MOCZ modification is in line with the pseudo-second-order kinetic and Langmuir isotherm.
Co-Authors Adiyastuti, Nunuk Nurcahyani Anggie Lutfiyani Ashadi Ashadi Asri Nugraheni, Febriani Sarwendah Bakti Mulyani Bakti Mulyani Baskoro Adi Prayitno Baskoro Adi Prayitno BHAKTI KARYADI Bramastia Bramastia, Bramastia Buana, Contias Edar Budi Utami Budi Utami Catur Saputro, Agung Nugroho Ciptonugroho, Wirawan Damayanti, Nida Desti, Icha Dewi, Ayuana Kartika Dimas Gilang Ramadhani Dwi Putri Winanti Elisabeth Nugrahini Endang Susilowati Endang Susilowati Enggar Kurniawan Fitriani, Aan Kartika Gunawan, Kadek Dwi Hendratma Ida Setiarini Imron, Erlambang Muhammad Inung Widyastuti Isma Aziz Fakhrudin Lestari, Wahyuning Luthfia Izzati Maharani, Rizki Deva Maria Ciptaning Sabdo Kawedhar Mayub, Afrizal Meta Aulia Rakhmani Mohammad Masykuri Muhammad Nur Hudha Mulyani, Bakti Mulyani, Bhakti Nanik Dwi Nurhayati Natalia Diyah Hapsari Nisa', Salsabila Kholifahtun Nugroho, Erwan Nunuk Nurcahyani A Nur Haniza Nurhudha, Muhammad Nurma Yunita Indriyanti Nurma Yunita Indriyanti Nursalsabila, Zamzami Pratama, Ferry Yudha Prihantoro, Alita Selvi Rahmawati , Raisya Rakhma Amalia Nurdina Rasyada, Ahyana Riezky Maya Probosari Rizka Fauzia Hanif Saputro, Sulistyo Septianing, Pingki Wahyu Siti Nur Afifah Sri Mulyani Sri Mulyani Sri Mulyani Sri Retno Dwi Ariani Sri Retno Dwi Ariani Suciati Suciati Sulistyo Saputro Sulistyo Saputro Sulistyo Saputro Sulistyo Saputro Sutarno Sutarno Tanghal, Analiza B. Taufik Ihsan Triana, Dini Fajar Triyono Triyono Wahyuni, Nita Tri Wati, Icha Kurnia Wega Trisunaryanti Wieke Helma Anjelina Wijayanti, Septi Reggina Anggita Wima Pudya Ajunda Windiasty, Ananda Dea Wuri Wardani, Wuri