Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent
Abstract A commercial carbon cloth (CC) was oxidized by HNO3 acid and the features of the plain and oxidized CC were evaluated. The results of characterization illustrated that HNO3 oxidization duplicated the oxygen-containing functional groups and the surface area of the CC. The adsorption performa...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-44067-w |
| _version_ | 1797452764208431104 |
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| author | Emad K. Radwan Rehab A. Omar Ahmed S. Moursy |
| author_facet | Emad K. Radwan Rehab A. Omar Ahmed S. Moursy |
| author_sort | Emad K. Radwan |
| collection | DOAJ |
| description | Abstract A commercial carbon cloth (CC) was oxidized by HNO3 acid and the features of the plain and oxidized CC were evaluated. The results of characterization illustrated that HNO3 oxidization duplicated the oxygen-containing functional groups and the surface area of the CC. The adsorption performance of the plain and oxidized CC (Oxi-CC) toward benzotriazole (BTR) was compared. The results disclosed that the uptake of BTR by oxidized CC was greater than the plain CC. Thence, the affinity of oxidized CC toward BTR was assessed at different conditions. It was found that the adsorption was quick, occurred at pH 9 and improved by adding NaCl or CaCl2 to the BTR solution. The kinetic and isotherm studies revealed that the surface of Oxi-CC is heterogeneous and the adsorption of BTR follows a physical process and forms multilayer over the Oxi-CC surface. The regenerability and reusability study illustrated that only deionized water can completely regenerate the Oxi-CC and that the Oxi-CC can be reused for five cycles without any loss of performance. The high maximum adsorption capacity of Dubinin–Radushkevich isotherm model (252 mg/g), ease of separation and regeneration, and maintaining the adsorption capacity for several cycles revealed the high efficiency and economical and environmental feasibility of Oxi-CC as an adsorbent for BTR. |
| first_indexed | 2024-03-09T15:13:23Z |
| format | Article |
| id | doaj.art-196c4ecec39247c8a8eda5691185f925 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-09T15:13:23Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-196c4ecec39247c8a8eda5691185f9252023-11-26T13:12:24ZengNature PortfolioScientific Reports2045-23222023-10-0113111310.1038/s41598-023-44067-wRapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbentEmad K. Radwan0Rehab A. Omar1Ahmed S. Moursy2Water Pollution Research Department, National Research CentreWater Pollution Research Department, National Research CentreWater Pollution Research Department, National Research CentreAbstract A commercial carbon cloth (CC) was oxidized by HNO3 acid and the features of the plain and oxidized CC were evaluated. The results of characterization illustrated that HNO3 oxidization duplicated the oxygen-containing functional groups and the surface area of the CC. The adsorption performance of the plain and oxidized CC (Oxi-CC) toward benzotriazole (BTR) was compared. The results disclosed that the uptake of BTR by oxidized CC was greater than the plain CC. Thence, the affinity of oxidized CC toward BTR was assessed at different conditions. It was found that the adsorption was quick, occurred at pH 9 and improved by adding NaCl or CaCl2 to the BTR solution. The kinetic and isotherm studies revealed that the surface of Oxi-CC is heterogeneous and the adsorption of BTR follows a physical process and forms multilayer over the Oxi-CC surface. The regenerability and reusability study illustrated that only deionized water can completely regenerate the Oxi-CC and that the Oxi-CC can be reused for five cycles without any loss of performance. The high maximum adsorption capacity of Dubinin–Radushkevich isotherm model (252 mg/g), ease of separation and regeneration, and maintaining the adsorption capacity for several cycles revealed the high efficiency and economical and environmental feasibility of Oxi-CC as an adsorbent for BTR.https://doi.org/10.1038/s41598-023-44067-w |
| spellingShingle | Emad K. Radwan Rehab A. Omar Ahmed S. Moursy Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent Scientific Reports |
| title | Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent |
| title_full | Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent |
| title_fullStr | Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent |
| title_full_unstemmed | Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent |
| title_short | Rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent |
| title_sort | rapid adsorption of benzotriazole onto oxidized carbon cloth as an easily separable adsorbent |
| url | https://doi.org/10.1038/s41598-023-44067-w |
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