Preparation and Photocatalytic Properties of Nano TiO_2/Nay Composite Photocatalyst
The major problems of TiO_2 photocatalyst are easy aggregation and deactivation, and obvious difficulty in separation. In order to overcome some of the drawbacks of TiO_2 photocatalyst in suspension, zeolite(NaY) molecular sieves were used to support TiO_2. The preparation conditions of TiO_2/NaY co...
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| Format: | Article |
| Language: | English |
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Editorial Department of Journal of Nantong University (Natural Science Edition)
2021-12-01
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| Series: | Nantong Daxue xuebao. Ziran kexue ban |
| Subjects: |
| _version_ | 1828135728893132800 |
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| author | YANG Tingting PAN Gangwei JING Xiaohui |
| author_facet | YANG Tingting PAN Gangwei JING Xiaohui |
| author_sort | YANG Tingting |
| collection | DOAJ |
| description | The major problems of TiO_2 photocatalyst are easy aggregation and deactivation, and obvious difficulty in separation. In order to overcome some of the drawbacks of TiO_2 photocatalyst in suspension, zeolite(NaY) molecular sieves were used to support TiO_2. The preparation conditions of TiO_2/NaY composite photocatalyst were optimized in this research. Moreover, the effect of NaY on crystal type, phase transition temperature and photocatalytic properties was investigated, and the influence of TiO_2/NaY on the degradation of organic waste water was analyzed. The results indicate that the TiO_2/NaY composite photocatalyst exhibits the optimal photocatalytic activity under the conditions of TiO_2 loading of 35%, sintering temperature of 500 °C, roasting time of 2 h and catalyst dosage of 0.08 g(methylene blue solution of 100 mL). When methylene blue solution of an initial concentration of 20 mg/L was treated for 0.5 h with TiO_2/NaY composite photocatalyst, the photocatalytic degradation rate was 95.42%, 22.3% higher than that of TiO_2. High stability, high ultraviolet light transmission and regular microporous and cage structure of NaY is conducive to not only recycle of TiO_2 but also improvement of photocatalytic activity of TiO_2. |
| first_indexed | 2024-04-11T17:51:38Z |
| format | Article |
| id | doaj.art-169a5e4b727748c18df20e48a925e9e8 |
| institution | Directory Open Access Journal |
| issn | 1673-2340 |
| language | English |
| last_indexed | 2024-04-11T17:51:38Z |
| publishDate | 2021-12-01 |
| publisher | Editorial Department of Journal of Nantong University (Natural Science Edition) |
| record_format | Article |
| series | Nantong Daxue xuebao. Ziran kexue ban |
| spelling | doaj.art-169a5e4b727748c18df20e48a925e9e82022-12-22T04:11:02ZengEditorial Department of Journal of Nantong University (Natural Science Edition)Nantong Daxue xuebao. Ziran kexue ban1673-23402021-12-01204727710.12194/j.ntu.20200105001Preparation and Photocatalytic Properties of Nano TiO_2/Nay Composite PhotocatalystYANG Tingting0PAN Gangwei1JING Xiaohui2National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection,School of Textile and Clothing, Nantong UniversityNational & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection,School of Textile and Clothing, Nantong University;Jiangsu Advanced Textile Engineering Technology CenterSchool of Chemistry and Chemical Engineering, Nantong UniversityThe major problems of TiO_2 photocatalyst are easy aggregation and deactivation, and obvious difficulty in separation. In order to overcome some of the drawbacks of TiO_2 photocatalyst in suspension, zeolite(NaY) molecular sieves were used to support TiO_2. The preparation conditions of TiO_2/NaY composite photocatalyst were optimized in this research. Moreover, the effect of NaY on crystal type, phase transition temperature and photocatalytic properties was investigated, and the influence of TiO_2/NaY on the degradation of organic waste water was analyzed. The results indicate that the TiO_2/NaY composite photocatalyst exhibits the optimal photocatalytic activity under the conditions of TiO_2 loading of 35%, sintering temperature of 500 °C, roasting time of 2 h and catalyst dosage of 0.08 g(methylene blue solution of 100 mL). When methylene blue solution of an initial concentration of 20 mg/L was treated for 0.5 h with TiO_2/NaY composite photocatalyst, the photocatalytic degradation rate was 95.42%, 22.3% higher than that of TiO_2. High stability, high ultraviolet light transmission and regular microporous and cage structure of NaY is conducive to not only recycle of TiO_2 but also improvement of photocatalytic activity of TiO_2.titanium dioxidezeolite;molecular sievephotocatalysismethylene blue |
| spellingShingle | YANG Tingting PAN Gangwei JING Xiaohui Preparation and Photocatalytic Properties of Nano TiO_2/Nay Composite Photocatalyst Nantong Daxue xuebao. Ziran kexue ban titanium dioxide zeolite;molecular sieve photocatalysis methylene blue |
| title | Preparation and Photocatalytic Properties of Nano TiO_2/Nay Composite Photocatalyst |
| title_full | Preparation and Photocatalytic Properties of Nano TiO_2/Nay Composite Photocatalyst |
| title_fullStr | Preparation and Photocatalytic Properties of Nano TiO_2/Nay Composite Photocatalyst |
| title_full_unstemmed | Preparation and Photocatalytic Properties of Nano TiO_2/Nay Composite Photocatalyst |
| title_short | Preparation and Photocatalytic Properties of Nano TiO_2/Nay Composite Photocatalyst |
| title_sort | preparation and photocatalytic properties of nano tio 2 nay composite photocatalyst |
| topic | titanium dioxide zeolite;molecular sieve photocatalysis methylene blue |
| work_keys_str_mv | AT yangtingting preparationandphotocatalyticpropertiesofnanotio2naycompositephotocatalyst AT pangangwei preparationandphotocatalyticpropertiesofnanotio2naycompositephotocatalyst AT jingxiaohui preparationandphotocatalyticpropertiesofnanotio2naycompositephotocatalyst |