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Efficient Removal of Siloxane from Biogas by Using β-Cyclodextrin-Modified Reduced Graphene Oxide Aerogels
| Content Provider | MDPI |
|---|---|
| Author | Zheng, Yanhui Hou, Xifeng Lv, Siqi Ma, Zichuan Ma, Xiaolong |
| Copyright Year | 2022 |
| Description | In this study, β-cyclodextrin-modified reduced graphene oxide aerogels (β-CD-rGOAs) were synthesized via a one-step hydrothermal method and were used to remove hexamethyldisiloxane (L2) from biogas. The β-CD-rGOAs were characterized by the Brunner–Emmet–Teller technique, using Fourier-transform infrared spectroscopy, Raman spectrometry, scanning electron microscopy (SEM), contact angle measurements, and X-ray diffraction. The results of the characterizations indicate that β-CD was grafted onto the surface of rGOAs as a cross-linking modifier. The β-CD-rGOA had a three-dimensional, cross-linked porous structure. The maximum breakthrough adsorption capacity of L2 on β-CD-rGOA at 273 K was 111.8 mg $g^{−1}$. A low inlet concentration and bed temperature facilitated the adsorption of L2. Moreover, the β-CD-rGOA was regenerated by annealing at 80 °C, which renders this a promising material for removing L2 from biogas. |
| Starting Page | 2643 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano12152643 |
| Journal | Nanomaterials |
| Issue Number | 15 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-07-31 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Environmental Engineering Reduced Graphene Oxide Aerogel Β-cyclodextrin Hydrothermal Reduction Hexamethyldisiloxane Contaminant Removal |
| Content Type | Text |
| Resource Type | Article |
