Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight
Abstract Hollow and heterostructured architectures are recognized as an effective approach to improve photocatalytic performance. In this work, ternary TiO2/CdTe/BiOI with hollow structure was constructed via a step-by-step method. In addition, the effect of TiO2 structural regulation and the energy...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2019-02-01
|
| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s11671-019-2878-1 |
| _version_ | 1827884168172797952 |
|---|---|
| author | Xiaofei Qu Meihua Liu Longfei Li Chunqi Wang Cuihua Zeng Jianhuang Liu Liang Shi Fanglin Du |
| author_facet | Xiaofei Qu Meihua Liu Longfei Li Chunqi Wang Cuihua Zeng Jianhuang Liu Liang Shi Fanglin Du |
| author_sort | Xiaofei Qu |
| collection | DOAJ |
| description | Abstract Hollow and heterostructured architectures are recognized as an effective approach to improve photocatalytic performance. In this work, ternary TiO2/CdTe/BiOI with hollow structure was constructed via a step-by-step method. In addition, the effect of TiO2 structural regulation and the energy band alignment of BiOI and CdTe quantum dots (CdTe QDs) with TiO2 in TiO2/CdTe/BiOI on photocatalytic dye removal were also studied. The results reveal that the TiO2/CdTe/BiOI heterostructures with hollow substrates exhibit much higher photocatalytic activities than pure TiO2, P25, TiO2/CdTe, and TiO2/BiOI and ternary TiO2/CdTe/BiOI with solid substrates. For TiO2(H)/CdTe/BiOI, several synergistic factors may be responsible for the remarkable visible-light photodegradation performance, such as strong visible-light absorption by BiOI and larger specific surface area. |
| first_indexed | 2024-03-12T19:24:37Z |
| format | Article |
| id | doaj.art-44e3c07e28d34e969f2c5ba49fbc2b1c |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T19:24:37Z |
| publishDate | 2019-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-44e3c07e28d34e969f2c5ba49fbc2b1c2023-08-02T04:56:20ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2019-02-0114111110.1186/s11671-019-2878-1Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated SunlightXiaofei Qu0Meihua Liu1Longfei Li2Chunqi Wang3Cuihua Zeng4Jianhuang Liu5Liang Shi6Fanglin Du7College of Materials Science and Engineering, Qingdao University of Science and TechnologyCollege of Materials Science and Engineering, Qingdao University of Science and TechnologyCollege of Materials Science and Engineering, Qingdao University of Science and TechnologyCollege of Materials Science and Engineering, Qingdao University of Science and TechnologyCollege of Materials Science and Engineering, Qingdao University of Science and TechnologyAnsteel Cold Rolling (PuTian) Co., Ltd.College of Materials Science and Engineering, Qingdao University of Science and TechnologyCollege of Materials Science and Engineering, Qingdao University of Science and TechnologyAbstract Hollow and heterostructured architectures are recognized as an effective approach to improve photocatalytic performance. In this work, ternary TiO2/CdTe/BiOI with hollow structure was constructed via a step-by-step method. In addition, the effect of TiO2 structural regulation and the energy band alignment of BiOI and CdTe quantum dots (CdTe QDs) with TiO2 in TiO2/CdTe/BiOI on photocatalytic dye removal were also studied. The results reveal that the TiO2/CdTe/BiOI heterostructures with hollow substrates exhibit much higher photocatalytic activities than pure TiO2, P25, TiO2/CdTe, and TiO2/BiOI and ternary TiO2/CdTe/BiOI with solid substrates. For TiO2(H)/CdTe/BiOI, several synergistic factors may be responsible for the remarkable visible-light photodegradation performance, such as strong visible-light absorption by BiOI and larger specific surface area.http://link.springer.com/article/10.1186/s11671-019-2878-1PhotocatalysisTernary heterojunctionsCdTe quantum dotsTiO2 hollow microspheres |
| spellingShingle | Xiaofei Qu Meihua Liu Longfei Li Chunqi Wang Cuihua Zeng Jianhuang Liu Liang Shi Fanglin Du Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight Nanoscale Research Letters Photocatalysis Ternary heterojunctions CdTe quantum dots TiO2 hollow microspheres |
| title | Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight |
| title_full | Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight |
| title_fullStr | Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight |
| title_full_unstemmed | Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight |
| title_short | Fabrication of CdTe QDs/BiOI-Promoted TiO2 Hollow Microspheres with Superior Photocatalytic Performance Under Simulated Sunlight |
| title_sort | fabrication of cdte qds bioi promoted tio2 hollow microspheres with superior photocatalytic performance under simulated sunlight |
| topic | Photocatalysis Ternary heterojunctions CdTe quantum dots TiO2 hollow microspheres |
| url | http://link.springer.com/article/10.1186/s11671-019-2878-1 |
| work_keys_str_mv | AT xiaofeiqu fabricationofcdteqdsbioipromotedtio2hollowmicrosphereswithsuperiorphotocatalyticperformanceundersimulatedsunlight AT meihualiu fabricationofcdteqdsbioipromotedtio2hollowmicrosphereswithsuperiorphotocatalyticperformanceundersimulatedsunlight AT longfeili fabricationofcdteqdsbioipromotedtio2hollowmicrosphereswithsuperiorphotocatalyticperformanceundersimulatedsunlight AT chunqiwang fabricationofcdteqdsbioipromotedtio2hollowmicrosphereswithsuperiorphotocatalyticperformanceundersimulatedsunlight AT cuihuazeng fabricationofcdteqdsbioipromotedtio2hollowmicrosphereswithsuperiorphotocatalyticperformanceundersimulatedsunlight AT jianhuangliu fabricationofcdteqdsbioipromotedtio2hollowmicrosphereswithsuperiorphotocatalyticperformanceundersimulatedsunlight AT liangshi fabricationofcdteqdsbioipromotedtio2hollowmicrosphereswithsuperiorphotocatalyticperformanceundersimulatedsunlight AT fanglindu fabricationofcdteqdsbioipromotedtio2hollowmicrosphereswithsuperiorphotocatalyticperformanceundersimulatedsunlight |