Facile Synthesis of Diatomite/β-Cyclodextrin Composite and Application for the Adsorption of Diphenolic Acid from Wastewater
Diphenolic acid (DPA) is a kind of endocrine-disrupting compound, which brings serious health problems to humans and animals. An eco-friendly and cost-effective adsorbent was prepared through a simple method, in which the <i>β</i>-Cyclodextrin(<i>β</i>-CD) was crosslinked ont...
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| author | Min Hou Zhiyi Wang Qian Yu Xianming Kong Miao Zhang |
| author_facet | Min Hou Zhiyi Wang Qian Yu Xianming Kong Miao Zhang |
| author_sort | Min Hou |
| collection | DOAJ |
| description | Diphenolic acid (DPA) is a kind of endocrine-disrupting compound, which brings serious health problems to humans and animals. An eco-friendly and cost-effective adsorbent was prepared through a simple method, in which the <i>β</i>-Cyclodextrin(<i>β</i>-CD) was crosslinked onto the surface of diatomite (DA), the as-prepared DA/<i>β</i>-CD composite showed higher adsorption efficiency for DPA than DA as the host–guest interaction between DPA and <i>β</i>-CD. DA is a kind of biosilica with a hierarchical pore structure that provides enough surface area for the DA/<i>β</i>-CD. The surface area and pore size of DA/<i>β</i>-CD were investigated by nitrogen adsorption and desorption. The DA/<i>β</i>-CD composite illustrated a good adsorption capability, and was used for removing DPA from wastewater. The adsorption ratio of DPA could achieve 38% with an adsorption amount of 9.6 mg g<sup>−1</sup> under room temperature at pH = 6. The adsorption isotherm curves followed the Langmuir (R<sup>2</sup> = 0.9867) and Freundlich (R<sup>2</sup> = 0.9748) models. In addition, the regeneration rate of the DA/<i>β</i>-CD was nearly at 80.32% after three cycles of regeneration. These results indicated that the DA/<i>β</i>-CD has the potential for practical removal of the EDC contaminants from wastewater. |
| first_indexed | 2024-03-09T10:27:26Z |
| format | Article |
| id | doaj.art-a649d1865738490eac99ffd02345d0e2 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T10:27:26Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-a649d1865738490eac99ffd02345d0e22023-12-01T21:34:24ZengMDPI AGMaterials1996-19442022-06-011513458810.3390/ma15134588Facile Synthesis of Diatomite/β-Cyclodextrin Composite and Application for the Adsorption of Diphenolic Acid from WastewaterMin Hou0Zhiyi Wang1Qian Yu2Xianming Kong3Miao Zhang4School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, ChinaSchool of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, ChinaSchool of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, ChinaSchool of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, ChinaDepartment of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, SwedenDiphenolic acid (DPA) is a kind of endocrine-disrupting compound, which brings serious health problems to humans and animals. An eco-friendly and cost-effective adsorbent was prepared through a simple method, in which the <i>β</i>-Cyclodextrin(<i>β</i>-CD) was crosslinked onto the surface of diatomite (DA), the as-prepared DA/<i>β</i>-CD composite showed higher adsorption efficiency for DPA than DA as the host–guest interaction between DPA and <i>β</i>-CD. DA is a kind of biosilica with a hierarchical pore structure that provides enough surface area for the DA/<i>β</i>-CD. The surface area and pore size of DA/<i>β</i>-CD were investigated by nitrogen adsorption and desorption. The DA/<i>β</i>-CD composite illustrated a good adsorption capability, and was used for removing DPA from wastewater. The adsorption ratio of DPA could achieve 38% with an adsorption amount of 9.6 mg g<sup>−1</sup> under room temperature at pH = 6. The adsorption isotherm curves followed the Langmuir (R<sup>2</sup> = 0.9867) and Freundlich (R<sup>2</sup> = 0.9748) models. In addition, the regeneration rate of the DA/<i>β</i>-CD was nearly at 80.32% after three cycles of regeneration. These results indicated that the DA/<i>β</i>-CD has the potential for practical removal of the EDC contaminants from wastewater.https://www.mdpi.com/1996-1944/15/13/4588<i>β</i>-cyclodextrindiatomitediphenolic acidadsorptionwastewater |
| spellingShingle | Min Hou Zhiyi Wang Qian Yu Xianming Kong Miao Zhang Facile Synthesis of Diatomite/β-Cyclodextrin Composite and Application for the Adsorption of Diphenolic Acid from Wastewater Materials <i>β</i>-cyclodextrin diatomite diphenolic acid adsorption wastewater |
| title | Facile Synthesis of Diatomite/β-Cyclodextrin Composite and Application for the Adsorption of Diphenolic Acid from Wastewater |
| title_full | Facile Synthesis of Diatomite/β-Cyclodextrin Composite and Application for the Adsorption of Diphenolic Acid from Wastewater |
| title_fullStr | Facile Synthesis of Diatomite/β-Cyclodextrin Composite and Application for the Adsorption of Diphenolic Acid from Wastewater |
| title_full_unstemmed | Facile Synthesis of Diatomite/β-Cyclodextrin Composite and Application for the Adsorption of Diphenolic Acid from Wastewater |
| title_short | Facile Synthesis of Diatomite/β-Cyclodextrin Composite and Application for the Adsorption of Diphenolic Acid from Wastewater |
| title_sort | facile synthesis of diatomite β cyclodextrin composite and application for the adsorption of diphenolic acid from wastewater |
| topic | <i>β</i>-cyclodextrin diatomite diphenolic acid adsorption wastewater |
| url | https://www.mdpi.com/1996-1944/15/13/4588 |
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