Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water
Low-temperature dried alginate/silica hybrid aerogel beads with a large specific surface area (160.8 m<sup>2</sup>/g), low density (0.160 m<sup>2</sup>/g), and high degree of sphericity were successfully fabricated. Single networks of silica aerogels beads were synthesized vi...
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| Format: | Article |
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MDPI AG
2025-05-01
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| Series: | Gels |
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| Online Access: | https://www.mdpi.com/2310-2861/11/6/397 |
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| author | Jiuqi Wei Shilong Yang Zhicheng Zhu Jialu Lu Bencong Zhang Mingmei Zhang Wei Wei |
| author_facet | Jiuqi Wei Shilong Yang Zhicheng Zhu Jialu Lu Bencong Zhang Mingmei Zhang Wei Wei |
| author_sort | Jiuqi Wei |
| collection | DOAJ |
| description | Low-temperature dried alginate/silica hybrid aerogel beads with a large specific surface area (160.8 m<sup>2</sup>/g), low density (0.160 m<sup>2</sup>/g), and high degree of sphericity were successfully fabricated. Single networks of silica aerogels beads were synthesized via by calcining hybrid aerogel beads in air. Moreover, alginate-derived carbon/silica aerogel beads were also obtained by the thermal treatment of the hybrid aerogel beads in nitrogen, which were indicative of the double networks of the as-synthesized crack-free hybrid aerogel beads for the first time. The adsorption performances of above aerogel beads were also investigated. Meanwhile, using a common silane coupling agent as a modifying agent, a series of hybrid aerogel beads with tunable functional surfaces were obtained. The results showed that the obtained samples adsorbed Pb<sup>2+</sup> well, and the hybrid aerogel beads modified with KH-590 exhibited an experimental maximum adsorption capacity of Pb<sup>2+</sup> of 193.73 mg·g<sup>−1</sup>. |
| format | Article |
| id | doaj-art-3e0140a46d464ccebd7a37ec7706f2ce |
| institution | Kabale University |
| issn | 2310-2861 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj-art-3e0140a46d464ccebd7a37ec7706f2ce2025-08-20T03:27:07ZengMDPI AGGels2310-28612025-05-0111639710.3390/gels11060397Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from WaterJiuqi Wei0Shilong Yang1Zhicheng Zhu2Jialu Lu3Bencong Zhang4Mingmei Zhang5Wei Wei6School of Chemistry and Chemical Engineering, College of Energy and Power Engineering, Public Experiment and Service Center, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, ChinaAdvanced Analysis and Testing Center, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, ChinaSchool of Chemistry and Chemical Engineering, College of Energy and Power Engineering, Public Experiment and Service Center, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, ChinaShanghai Key Laboratory of Special Artificial Microstructure and Technology, School of Physics Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, ChinaSchool of Chemistry and Chemical Engineering, College of Energy and Power Engineering, Public Experiment and Service Center, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, ChinaSchool of Chemistry and Chemical Engineering, College of Energy and Power Engineering, Public Experiment and Service Center, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, ChinaSchool of Chemistry and Chemical Engineering, College of Energy and Power Engineering, Public Experiment and Service Center, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, ChinaLow-temperature dried alginate/silica hybrid aerogel beads with a large specific surface area (160.8 m<sup>2</sup>/g), low density (0.160 m<sup>2</sup>/g), and high degree of sphericity were successfully fabricated. Single networks of silica aerogels beads were synthesized via by calcining hybrid aerogel beads in air. Moreover, alginate-derived carbon/silica aerogel beads were also obtained by the thermal treatment of the hybrid aerogel beads in nitrogen, which were indicative of the double networks of the as-synthesized crack-free hybrid aerogel beads for the first time. The adsorption performances of above aerogel beads were also investigated. Meanwhile, using a common silane coupling agent as a modifying agent, a series of hybrid aerogel beads with tunable functional surfaces were obtained. The results showed that the obtained samples adsorbed Pb<sup>2+</sup> well, and the hybrid aerogel beads modified with KH-590 exhibited an experimental maximum adsorption capacity of Pb<sup>2+</sup> of 193.73 mg·g<sup>−1</sup>.https://www.mdpi.com/2310-2861/11/6/397aerogel beadssol–gelhybrid materialsadsorptionlead ions |
| spellingShingle | Jiuqi Wei Shilong Yang Zhicheng Zhu Jialu Lu Bencong Zhang Mingmei Zhang Wei Wei Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water Gels aerogel beads sol–gel hybrid materials adsorption lead ions |
| title | Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water |
| title_full | Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water |
| title_fullStr | Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water |
| title_full_unstemmed | Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water |
| title_short | Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water |
| title_sort | low temperature dried alginate silica hybrid aerogel beads with tunable surface functionalities for removal of lead ions from water |
| topic | aerogel beads sol–gel hybrid materials adsorption lead ions |
| url | https://www.mdpi.com/2310-2861/11/6/397 |
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