Substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheres
Water deterioration and eutrophication caused by phosphorus (P) contamination necessitates P removal from polluted water, and has been a research focus since the second half of last century. In this study, novel mesoporous micropheres based on silicon and calcium (Ca) was prepared as an adsorbent by...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821121000405 |
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| author | Bing Li Qiang Xue Yong Wan Lin Liu Junhua Fu Yitao Yu Feng Wang Jinhui Li Fangzhi Zhang Shuo Zhang Zhenhua Wang Ning Zhao |
| author_facet | Bing Li Qiang Xue Yong Wan Lin Liu Junhua Fu Yitao Yu Feng Wang Jinhui Li Fangzhi Zhang Shuo Zhang Zhenhua Wang Ning Zhao |
| author_sort | Bing Li |
| collection | DOAJ |
| description | Water deterioration and eutrophication caused by phosphorus (P) contamination necessitates P removal from polluted water, and has been a research focus since the second half of last century. In this study, novel mesoporous micropheres based on silicon and calcium (Ca) was prepared as an adsorbent by direct pyrolysis to enrich and remove P. The maximum adsorption capacities of the prepared adsorbents were 356.34 and 496.73 mg g−1 P−PO43− for potassium phosphate (K3PO4) and potassium dihydrogen phosphate (KH2PO4) solutions, respectively, and adsorption equilibrium was attained rapidly in less than 30 min. The Langmuir isotherm and pseudo-second-order kinetic model adequately fit the adsorption process for K3PO4 solution, while the Langmuir isotherm and pseudo-first-order kinetic appropriately fit the KH2PO4 solution. The adsorption of P was due to the reaction between Ca2+ and PO43−, forming different phosphates. Addition of interfering ions had no significant effect on the adsorption ability of the prepared adsorbents. The proposed adsorbent was successfully applied to remove P from real wastewater. Notably, this new Ca-modified mesoporous silicon micropheres is an excellent adsorbent for treating wastewater containing low P content, providing an effective approach for facile preparation of P adsorbents and exhibiting promising P removal from wastewater. |
| first_indexed | 2024-12-13T19:27:14Z |
| format | Article |
| id | doaj.art-7f8f98a5df7440acb2bc3f139fd34724 |
| institution | Directory Open Access Journal |
| issn | 2666-8211 |
| language | English |
| last_indexed | 2024-12-13T19:27:14Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj.art-7f8f98a5df7440acb2bc3f139fd347242022-12-21T23:34:00ZengElsevierChemical Engineering Journal Advances2666-82112021-08-017100124Substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheresBing Li0Qiang Xue1Yong Wan2Lin Liu3Junhua Fu4Yitao Yu5Feng Wang6Jinhui Li7Fangzhi Zhang8Shuo Zhang9Zhenhua Wang10Ning Zhao11Shandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, ChinaInstitute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan 430071, ChinaInstitute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan 430071, ChinaShandong Provincial Water Conservancy Management Service Center of HaiHe River, HuaiHe River and XiaoqingHe River, Jinan, 250001, ChinaJinan Ecology and Environment Monitoring Center of Shandong Province, Jinan 250101, ChinaShandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, ChinaShandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, ChinaShandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, ChinaShandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, ChinaShandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, ChinaShandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Shandong Analysis and Tester Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Corresponding author at: Shandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.Shandong Provincial Key Laboratory for Special Silicon-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Corresponding author.Water deterioration and eutrophication caused by phosphorus (P) contamination necessitates P removal from polluted water, and has been a research focus since the second half of last century. In this study, novel mesoporous micropheres based on silicon and calcium (Ca) was prepared as an adsorbent by direct pyrolysis to enrich and remove P. The maximum adsorption capacities of the prepared adsorbents were 356.34 and 496.73 mg g−1 P−PO43− for potassium phosphate (K3PO4) and potassium dihydrogen phosphate (KH2PO4) solutions, respectively, and adsorption equilibrium was attained rapidly in less than 30 min. The Langmuir isotherm and pseudo-second-order kinetic model adequately fit the adsorption process for K3PO4 solution, while the Langmuir isotherm and pseudo-first-order kinetic appropriately fit the KH2PO4 solution. The adsorption of P was due to the reaction between Ca2+ and PO43−, forming different phosphates. Addition of interfering ions had no significant effect on the adsorption ability of the prepared adsorbents. The proposed adsorbent was successfully applied to remove P from real wastewater. Notably, this new Ca-modified mesoporous silicon micropheres is an excellent adsorbent for treating wastewater containing low P content, providing an effective approach for facile preparation of P adsorbents and exhibiting promising P removal from wastewater.http://www.sciencedirect.com/science/article/pii/S2666821121000405Mesoporous siliconCalcium hydroxideAdsorptionPhosphorus |
| spellingShingle | Bing Li Qiang Xue Yong Wan Lin Liu Junhua Fu Yitao Yu Feng Wang Jinhui Li Fangzhi Zhang Shuo Zhang Zhenhua Wang Ning Zhao Substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheres Chemical Engineering Journal Advances Mesoporous silicon Calcium hydroxide Adsorption Phosphorus |
| title | Substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheres |
| title_full | Substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheres |
| title_fullStr | Substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheres |
| title_full_unstemmed | Substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheres |
| title_short | Substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheres |
| title_sort | substantial and rapid phosphorous adsorption by calcium modified mesoporous silicon micropheres |
| topic | Mesoporous silicon Calcium hydroxide Adsorption Phosphorus |
| url | http://www.sciencedirect.com/science/article/pii/S2666821121000405 |
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