Photocatalytic degradation of sulfamethazine in aqueous solution using ZnO with different morphologies
In this study, photocatalytic experiments of 20 mg l−1 sulfamethazine (SMN) in aqueous solution containing ZnO with different morphologies, tetra-needle-like ZnO (T-ZnO), flower-like ZnO (F-ZnO) and nanoparticles ZnO (P-ZnO), were performed. The results indicated that photocatalytic degradation of S...
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| Format: | Article |
| Language: | English |
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The Royal Society
2018-01-01
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| Series: | Royal Society Open Science |
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| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171457 |
| _version_ | 1818339918637694976 |
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| author | Zhigang Yi Juan Wang Tao Jiang Qiong Tang Ying Cheng |
| author_facet | Zhigang Yi Juan Wang Tao Jiang Qiong Tang Ying Cheng |
| author_sort | Zhigang Yi |
| collection | DOAJ |
| description | In this study, photocatalytic experiments of 20 mg l−1 sulfamethazine (SMN) in aqueous solution containing ZnO with different morphologies, tetra-needle-like ZnO (T-ZnO), flower-like ZnO (F-ZnO) and nanoparticles ZnO (P-ZnO), were performed. The results indicated that photocatalytic degradation of SMN was effective and followed the pseudo-first-order reaction, but the degree of SMN mineralization showed obvious differences using ZnO with different shapes. After 12 h irradiation, 86%, 71% and 50% of the initial total organic carbon was eliminated in SMN suspension containing T-ZnO, F-ZnO and P-ZnO, respectively. The release ratio of sulfur was close to 100% in the presence of T-ZnO, but reached to 86% and 67% in the presence of F-ZnO and P-ZnO, respectively. The release ratio of nitrogen was about 76%, 63% and 40% using T-ZnO, F-ZnO and P-ZnO as photocatalyst, respectively. The morphology of ZnO played an important role in determining its catalytic activity. Seven intermediates were observed and identified in the UV/T-ZnO reaction system by LC-MS/MS analysis, and a possible degradation pathway was proposed. |
| first_indexed | 2024-12-13T15:34:38Z |
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| id | doaj.art-3c47afa0469c499f874f743d0ceda0ef |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-13T15:34:38Z |
| publishDate | 2018-01-01 |
| publisher | The Royal Society |
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| spelling | doaj.art-3c47afa0469c499f874f743d0ceda0ef2022-12-21T23:40:04ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-015410.1098/rsos.171457171457Photocatalytic degradation of sulfamethazine in aqueous solution using ZnO with different morphologiesZhigang YiJuan WangTao JiangQiong TangYing ChengIn this study, photocatalytic experiments of 20 mg l−1 sulfamethazine (SMN) in aqueous solution containing ZnO with different morphologies, tetra-needle-like ZnO (T-ZnO), flower-like ZnO (F-ZnO) and nanoparticles ZnO (P-ZnO), were performed. The results indicated that photocatalytic degradation of SMN was effective and followed the pseudo-first-order reaction, but the degree of SMN mineralization showed obvious differences using ZnO with different shapes. After 12 h irradiation, 86%, 71% and 50% of the initial total organic carbon was eliminated in SMN suspension containing T-ZnO, F-ZnO and P-ZnO, respectively. The release ratio of sulfur was close to 100% in the presence of T-ZnO, but reached to 86% and 67% in the presence of F-ZnO and P-ZnO, respectively. The release ratio of nitrogen was about 76%, 63% and 40% using T-ZnO, F-ZnO and P-ZnO as photocatalyst, respectively. The morphology of ZnO played an important role in determining its catalytic activity. Seven intermediates were observed and identified in the UV/T-ZnO reaction system by LC-MS/MS analysis, and a possible degradation pathway was proposed.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171457sulfamethazinephotocatalytic degradationdecomposition kineticszno |
| spellingShingle | Zhigang Yi Juan Wang Tao Jiang Qiong Tang Ying Cheng Photocatalytic degradation of sulfamethazine in aqueous solution using ZnO with different morphologies Royal Society Open Science sulfamethazine photocatalytic degradation decomposition kinetics zno |
| title | Photocatalytic degradation of sulfamethazine in aqueous solution using ZnO with different morphologies |
| title_full | Photocatalytic degradation of sulfamethazine in aqueous solution using ZnO with different morphologies |
| title_fullStr | Photocatalytic degradation of sulfamethazine in aqueous solution using ZnO with different morphologies |
| title_full_unstemmed | Photocatalytic degradation of sulfamethazine in aqueous solution using ZnO with different morphologies |
| title_short | Photocatalytic degradation of sulfamethazine in aqueous solution using ZnO with different morphologies |
| title_sort | photocatalytic degradation of sulfamethazine in aqueous solution using zno with different morphologies |
| topic | sulfamethazine photocatalytic degradation decomposition kinetics zno |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171457 |
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