Functionalization of sawdust biochar using Mg-Fe-LDH and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for Cd and Pb in contaminated water and soil
Abstract The increased contamination of potentially toxic element (PTE) has posed remarkable ecological risks to environment. Application of functionalized biochar for the remediation of PTE contaminated water and soils are of great concern, and effective strategies are urgently needed to enhance th...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2025-01-01
|
| Series: | Biochar |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s42773-024-00401-7 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832594514615730176 |
|---|---|
| author | Xin Pan Shaoping Kuang Xiao Wang Habib Ullah Zepeng Rao Esmat F. Ali Qumber Abbas Sang Soo Lee Sabry M. Shaheen |
| author_facet | Xin Pan Shaoping Kuang Xiao Wang Habib Ullah Zepeng Rao Esmat F. Ali Qumber Abbas Sang Soo Lee Sabry M. Shaheen |
| author_sort | Xin Pan |
| collection | DOAJ |
| description | Abstract The increased contamination of potentially toxic element (PTE) has posed remarkable ecological risks to environment. Application of functionalized biochar for the remediation of PTE contaminated water and soils are of great concern, and effective strategies are urgently needed to enhance the removal capacity of biochar for PTE. As a novel surface modification technology, the effect of layered double hydroxides (LDH) and sodium dodecyl sulfonate (SDS) on the remediation capacity of biochar for PTE polluted soils and water remains unclear. Sawdust biochar (SB) was coated with Mg and Fe to synthesize the Mg-Fe-LDH functionalized biochar (MFB); thereafter, the MFB was mixed with SDS solution to synthesize the organic-Mg-Fe-LDH biochar (MSB). The potential of SB, MFB, and MSB for remediation of Cd and Pb contaminated soil and water was evaluated in terms of adsorption capacity, immobilization efficiency, and stability. Loading of Mg-Fe-LDH into SB, along with SDS treatment created a regular micro-nano hierarchical structure and enhanced the surface roughness, aromaticity, and hydrophobicity of MSB as compared to SB. MSB exhibited a significantly higher maximum adsorption capacity (mg g−1) for water Pb (405.2) and Cd (673.0) than MFB (335.9 for Pb and 209.0 for Cd) and SB (178.2 for Pb and 186.1 for Cd). MSB altered the soluble fraction of Cd/Pb to the residual fraction and thus significantly decreased their mobilization in soil. The higher removal/immobilization efficiency of MSB could be attributed to its alkalinity, and the enhanced synergistic interactions including surface precipitation, ion exchange, complexation, and hydrogen bonding. The resistance to carbon loss by H2O2, thermal recalcitrance index R 50, and degree of graphitization in MSB were significantly improved compared to SB, indicating a more stable carbon fraction sequestered in MSB following aging in soil. These results indicate that MSB could be used for remediation of Cd and Pb contaminated soil and water. Graphical Abstract |
| format | Article |
| id | doaj-art-dae6ff1aa8c94c1ea3a0c5eec908c11d |
| institution | Kabale University |
| issn | 2524-7867 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Biochar |
| spelling | doaj-art-dae6ff1aa8c94c1ea3a0c5eec908c11d2025-01-19T12:34:07ZengSpringerBiochar2524-78672025-01-017111410.1007/s42773-024-00401-7Functionalization of sawdust biochar using Mg-Fe-LDH and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for Cd and Pb in contaminated water and soilXin Pan0Shaoping Kuang1Xiao Wang2Habib Ullah3Zepeng Rao4Esmat F. Ali5Qumber Abbas6Sang Soo Lee7Sabry M. Shaheen8College of Environment and Safety Engineering, Qingdao University of Science and TechnologyCollege of Environment and Safety Engineering, Qingdao University of Science and TechnologyMarine Agriculture Research Center, Tobacco Research Institute, Chinese Academy of Agricultural SciencesInnovation Center of Yangtze River Delta, Zhejiang UniversityInnovation Center of Yangtze River Delta, Zhejiang UniversityDepartment of Biology, College of Science, Taif UniversityDepartment of Environmental Biotechnology, Faculty of Energy and Environmental Engineering, Silesian University of TechnologyDepartment of Environmental and Energy Engineering, Yonsei UniversitySchool of Architecture and Civil Engineering, Laboratory of Soil and Groundwater Management, Institute of Foundation Engineering, Water- and Waste-Management, University of WuppertalAbstract The increased contamination of potentially toxic element (PTE) has posed remarkable ecological risks to environment. Application of functionalized biochar for the remediation of PTE contaminated water and soils are of great concern, and effective strategies are urgently needed to enhance the removal capacity of biochar for PTE. As a novel surface modification technology, the effect of layered double hydroxides (LDH) and sodium dodecyl sulfonate (SDS) on the remediation capacity of biochar for PTE polluted soils and water remains unclear. Sawdust biochar (SB) was coated with Mg and Fe to synthesize the Mg-Fe-LDH functionalized biochar (MFB); thereafter, the MFB was mixed with SDS solution to synthesize the organic-Mg-Fe-LDH biochar (MSB). The potential of SB, MFB, and MSB for remediation of Cd and Pb contaminated soil and water was evaluated in terms of adsorption capacity, immobilization efficiency, and stability. Loading of Mg-Fe-LDH into SB, along with SDS treatment created a regular micro-nano hierarchical structure and enhanced the surface roughness, aromaticity, and hydrophobicity of MSB as compared to SB. MSB exhibited a significantly higher maximum adsorption capacity (mg g−1) for water Pb (405.2) and Cd (673.0) than MFB (335.9 for Pb and 209.0 for Cd) and SB (178.2 for Pb and 186.1 for Cd). MSB altered the soluble fraction of Cd/Pb to the residual fraction and thus significantly decreased their mobilization in soil. The higher removal/immobilization efficiency of MSB could be attributed to its alkalinity, and the enhanced synergistic interactions including surface precipitation, ion exchange, complexation, and hydrogen bonding. The resistance to carbon loss by H2O2, thermal recalcitrance index R 50, and degree of graphitization in MSB were significantly improved compared to SB, indicating a more stable carbon fraction sequestered in MSB following aging in soil. These results indicate that MSB could be used for remediation of Cd and Pb contaminated soil and water. Graphical Abstracthttps://doi.org/10.1007/s42773-024-00401-7Soil amendmentHeavy metalHydrotalciteSurface modificationEnvironmental resistance |
| spellingShingle | Xin Pan Shaoping Kuang Xiao Wang Habib Ullah Zepeng Rao Esmat F. Ali Qumber Abbas Sang Soo Lee Sabry M. Shaheen Functionalization of sawdust biochar using Mg-Fe-LDH and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for Cd and Pb in contaminated water and soil Biochar Soil amendment Heavy metal Hydrotalcite Surface modification Environmental resistance |
| title | Functionalization of sawdust biochar using Mg-Fe-LDH and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for Cd and Pb in contaminated water and soil |
| title_full | Functionalization of sawdust biochar using Mg-Fe-LDH and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for Cd and Pb in contaminated water and soil |
| title_fullStr | Functionalization of sawdust biochar using Mg-Fe-LDH and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for Cd and Pb in contaminated water and soil |
| title_full_unstemmed | Functionalization of sawdust biochar using Mg-Fe-LDH and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for Cd and Pb in contaminated water and soil |
| title_short | Functionalization of sawdust biochar using Mg-Fe-LDH and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for Cd and Pb in contaminated water and soil |
| title_sort | functionalization of sawdust biochar using mg fe ldh and sodium dodecyl sulfonate enhanced its stability and immobilization capacity for cd and pb in contaminated water and soil |
| topic | Soil amendment Heavy metal Hydrotalcite Surface modification Environmental resistance |
| url | https://doi.org/10.1007/s42773-024-00401-7 |
| work_keys_str_mv | AT xinpan functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil AT shaopingkuang functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil AT xiaowang functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil AT habibullah functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil AT zepengrao functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil AT esmatfali functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil AT qumberabbas functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil AT sangsoolee functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil AT sabrymshaheen functionalizationofsawdustbiocharusingmgfeldhandsodiumdodecylsulfonateenhanceditsstabilityandimmobilizationcapacityforcdandpbincontaminatedwaterandsoil |