Adsorption of ferrous ions onto phosphoric acid-activated biochar
This study investigated the adsorption capacity of ferrous ions (Fe2+) using biochar derived from sugarcane bagasse, activated with phosphoric acid, and subjected to thermal treatment at temperatures ranging from 300 °C to 1000 °C. The objective of this study was to optimize the conditions for maxim...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Desalination and Water Treatment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398624204689 |
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| author | Gabrielle Schultz Braz Jaqueline do Carmo Lima Carvalho Josiane Gonçalves de Andrade Antônio Teodoro Dutra Junior Robson Pereira de Lima Evaneide Nascimento Lima Osania Emerenciano Ferreira Magno André de Oliveira Augusto César da Silva Bezerra Alan Rodrigues Teixeira Machado |
| author_facet | Gabrielle Schultz Braz Jaqueline do Carmo Lima Carvalho Josiane Gonçalves de Andrade Antônio Teodoro Dutra Junior Robson Pereira de Lima Evaneide Nascimento Lima Osania Emerenciano Ferreira Magno André de Oliveira Augusto César da Silva Bezerra Alan Rodrigues Teixeira Machado |
| author_sort | Gabrielle Schultz Braz |
| collection | DOAJ |
| description | This study investigated the adsorption capacity of ferrous ions (Fe2+) using biochar derived from sugarcane bagasse, activated with phosphoric acid, and subjected to thermal treatment at temperatures ranging from 300 °C to 1000 °C. The objective of this study was to optimize the conditions for maximizing biochar adsorption efficiency. Comprehensive characterization was performed via thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). The FTIR spectra revealed the formation of aromatic structures, whereas the SEM analysis demonstrated increased porosity and uniformity in the samples treated at higher temperatures. The highest adsorption capacity for Fe²⁺ was 55.55 mg/g for the biochar sample treated at 1000 °C (B-1000P), which also had a surface area of 246.85 m²/g. Adsorption kinetics followed the pseudo-second-order model, indicating that chemisorption was the predominant adsorption mechanism. These findings underscore the potential of activated biochar for efficient wastewater treatment, offering a sustainable and effective approach to removing Fe2+ from contaminated water sources. |
| format | Article |
| id | doaj-art-335f6069b024481aa5c9df2c3c327ae4 |
| institution | DOAJ |
| issn | 1944-3986 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj-art-335f6069b024481aa5c9df2c3c327ae42025-08-20T02:45:50ZengElsevierDesalination and Water Treatment1944-39862025-01-0132110095810.1016/j.dwt.2024.100958Adsorption of ferrous ions onto phosphoric acid-activated biocharGabrielle Schultz Braz0Jaqueline do Carmo Lima Carvalho1Josiane Gonçalves de Andrade2Antônio Teodoro Dutra Junior3Robson Pereira de Lima4Evaneide Nascimento Lima5Osania Emerenciano Ferreira6Magno André de Oliveira7Augusto César da Silva Bezerra8Alan Rodrigues Teixeira Machado9Departamento de Ciências Exatas, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, BrazilDepartamento de Ciências Exatas, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, BrazilDepartamento de Ciências Exatas, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, BrazilDepartamento de Ciências Exatas, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, BrazilDepartamento de Geociências, Ciências Humanas e Linguagens, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, BrazilDepartamento de Ciências Exatas, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, BrazilPrograma de Pós-graduação em Ciências Ambientais, Universidade do Estado de Minas Gerais, Frutal, Minas Gerais 38202-436, BrazilDepartamento de Engenharia de Transportes, Centro Federal de Educação Tecnológica de Minas Gerais, Minas Gerais 30421-169, BrazilDepartamento de Engenharia de Transportes, Centro Federal de Educação Tecnológica de Minas Gerais, Minas Gerais 30421-169, BrazilDepartamento de Ciências Exatas, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, Brazil; Programa de Pós-graduação em Ciências Ambientais, Universidade do Estado de Minas Gerais, Frutal, Minas Gerais 38202-436, Brazil; Corresponding author at: Departamento de Ciências Exatas, Universidade do Estado de Minas Gerais, João Monlevade, Minas Gerais 35930-314, Brazil.This study investigated the adsorption capacity of ferrous ions (Fe2+) using biochar derived from sugarcane bagasse, activated with phosphoric acid, and subjected to thermal treatment at temperatures ranging from 300 °C to 1000 °C. The objective of this study was to optimize the conditions for maximizing biochar adsorption efficiency. Comprehensive characterization was performed via thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). The FTIR spectra revealed the formation of aromatic structures, whereas the SEM analysis demonstrated increased porosity and uniformity in the samples treated at higher temperatures. The highest adsorption capacity for Fe²⁺ was 55.55 mg/g for the biochar sample treated at 1000 °C (B-1000P), which also had a surface area of 246.85 m²/g. Adsorption kinetics followed the pseudo-second-order model, indicating that chemisorption was the predominant adsorption mechanism. These findings underscore the potential of activated biochar for efficient wastewater treatment, offering a sustainable and effective approach to removing Fe2+ from contaminated water sources.http://www.sciencedirect.com/science/article/pii/S1944398624204689WasteWaterHeavy metalsActivated charcoalBiomass |
| spellingShingle | Gabrielle Schultz Braz Jaqueline do Carmo Lima Carvalho Josiane Gonçalves de Andrade Antônio Teodoro Dutra Junior Robson Pereira de Lima Evaneide Nascimento Lima Osania Emerenciano Ferreira Magno André de Oliveira Augusto César da Silva Bezerra Alan Rodrigues Teixeira Machado Adsorption of ferrous ions onto phosphoric acid-activated biochar Desalination and Water Treatment Waste Water Heavy metals Activated charcoal Biomass |
| title | Adsorption of ferrous ions onto phosphoric acid-activated biochar |
| title_full | Adsorption of ferrous ions onto phosphoric acid-activated biochar |
| title_fullStr | Adsorption of ferrous ions onto phosphoric acid-activated biochar |
| title_full_unstemmed | Adsorption of ferrous ions onto phosphoric acid-activated biochar |
| title_short | Adsorption of ferrous ions onto phosphoric acid-activated biochar |
| title_sort | adsorption of ferrous ions onto phosphoric acid activated biochar |
| topic | Waste Water Heavy metals Activated charcoal Biomass |
| url | http://www.sciencedirect.com/science/article/pii/S1944398624204689 |
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