Fabrication of Two-Dimensional Bi<sub>2</sub>MoO<sub>6</sub> Nanosheet-Decorated Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Type II Heterojunction and the Enhanced Photocatalytic Degradation of Antibiotics
This article successfully synthesized a series of Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunctions using a two-step solvothermal method followed by calcination, and the photocatalytic activity by degra...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Inorganics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6740/12/11/289 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846153406374215680 |
|---|---|
| author | Fengshu Kang Gaidong Sheng Xiaolong Yang Yan Zhang |
| author_facet | Fengshu Kang Gaidong Sheng Xiaolong Yang Yan Zhang |
| author_sort | Fengshu Kang |
| collection | DOAJ |
| description | This article successfully synthesized a series of Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunctions using a two-step solvothermal method followed by calcination, and the photocatalytic activity by degradation of tetracycline hydrochloride (TC) was investigated. Compared with pure Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> and Bi<sub>2</sub>MoO<sub>6</sub>, a series of Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunctions exhibit higher photocatalytic activity, which can be attributed to the heterostructures with strong interfacial interaction, improving the charge separation. The 2% Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunction shows the best photocatalytic activity under visible light irradiation, which is 1.9 times and 1.8 times that of Bi<sub>2</sub>MoO<sub>6</sub> and Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub>, respectively. In addition, cyclic experiments have shown that 2% Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunction has high stability, with a degradation efficiency only decreasing by 3% after 5 cycles. From the capture agent experiment and ESR test, it can be seen that ·O<sub>2</sub><sup>−</sup> and h<sup>+</sup> are the main active species. A possible photocatalytic mechanism of 2% Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunction under visible light irradiation was proposed. |
| format | Article |
| id | doaj-art-f58d69ac9acd400b943d861e3b552a76 |
| institution | Kabale University |
| issn | 2304-6740 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj-art-f58d69ac9acd400b943d861e3b552a762024-11-26T18:06:57ZengMDPI AGInorganics2304-67402024-11-01121128910.3390/inorganics12110289Fabrication of Two-Dimensional Bi<sub>2</sub>MoO<sub>6</sub> Nanosheet-Decorated Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Type II Heterojunction and the Enhanced Photocatalytic Degradation of AntibioticsFengshu Kang0Gaidong Sheng1Xiaolong Yang2Yan Zhang3College of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ning-Xia Road, Qingdao 266071, ChinaCollege of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ning-Xia Road, Qingdao 266071, ChinaCollege of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ning-Xia Road, Qingdao 266071, ChinaCollege of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ning-Xia Road, Qingdao 266071, ChinaThis article successfully synthesized a series of Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunctions using a two-step solvothermal method followed by calcination, and the photocatalytic activity by degradation of tetracycline hydrochloride (TC) was investigated. Compared with pure Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> and Bi<sub>2</sub>MoO<sub>6</sub>, a series of Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunctions exhibit higher photocatalytic activity, which can be attributed to the heterostructures with strong interfacial interaction, improving the charge separation. The 2% Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunction shows the best photocatalytic activity under visible light irradiation, which is 1.9 times and 1.8 times that of Bi<sub>2</sub>MoO<sub>6</sub> and Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub>, respectively. In addition, cyclic experiments have shown that 2% Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunction has high stability, with a degradation efficiency only decreasing by 3% after 5 cycles. From the capture agent experiment and ESR test, it can be seen that ·O<sub>2</sub><sup>−</sup> and h<sup>+</sup> are the main active species. A possible photocatalytic mechanism of 2% Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> heterojunction under visible light irradiation was proposed.https://www.mdpi.com/2304-6740/12/11/289tetracycline degradationtype II heterojunctionBi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub>Bi<sub>2</sub>MoO<sub>6</sub>heterojunction photocatalyst |
| spellingShingle | Fengshu Kang Gaidong Sheng Xiaolong Yang Yan Zhang Fabrication of Two-Dimensional Bi<sub>2</sub>MoO<sub>6</sub> Nanosheet-Decorated Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Type II Heterojunction and the Enhanced Photocatalytic Degradation of Antibiotics Inorganics tetracycline degradation type II heterojunction Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Bi<sub>2</sub>MoO<sub>6</sub> heterojunction photocatalyst |
| title | Fabrication of Two-Dimensional Bi<sub>2</sub>MoO<sub>6</sub> Nanosheet-Decorated Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Type II Heterojunction and the Enhanced Photocatalytic Degradation of Antibiotics |
| title_full | Fabrication of Two-Dimensional Bi<sub>2</sub>MoO<sub>6</sub> Nanosheet-Decorated Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Type II Heterojunction and the Enhanced Photocatalytic Degradation of Antibiotics |
| title_fullStr | Fabrication of Two-Dimensional Bi<sub>2</sub>MoO<sub>6</sub> Nanosheet-Decorated Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Type II Heterojunction and the Enhanced Photocatalytic Degradation of Antibiotics |
| title_full_unstemmed | Fabrication of Two-Dimensional Bi<sub>2</sub>MoO<sub>6</sub> Nanosheet-Decorated Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Type II Heterojunction and the Enhanced Photocatalytic Degradation of Antibiotics |
| title_short | Fabrication of Two-Dimensional Bi<sub>2</sub>MoO<sub>6</sub> Nanosheet-Decorated Bi<sub>2</sub>MoO<sub>6</sub>/Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Type II Heterojunction and the Enhanced Photocatalytic Degradation of Antibiotics |
| title_sort | fabrication of two dimensional bi sub 2 sub moo sub 6 sub nanosheet decorated bi sub 2 sub moo sub 6 sub bi sub 4 sub o sub 5 sub br sub 2 sub type ii heterojunction and the enhanced photocatalytic degradation of antibiotics |
| topic | tetracycline degradation type II heterojunction Bi<sub>4</sub>O<sub>5</sub>Br<sub>2</sub> Bi<sub>2</sub>MoO<sub>6</sub> heterojunction photocatalyst |
| url | https://www.mdpi.com/2304-6740/12/11/289 |
| work_keys_str_mv | AT fengshukang fabricationoftwodimensionalbisub2submoosub6subnanosheetdecoratedbisub2submoosub6subbisub4subosub5subbrsub2subtypeiiheterojunctionandtheenhancedphotocatalyticdegradationofantibiotics AT gaidongsheng fabricationoftwodimensionalbisub2submoosub6subnanosheetdecoratedbisub2submoosub6subbisub4subosub5subbrsub2subtypeiiheterojunctionandtheenhancedphotocatalyticdegradationofantibiotics AT xiaolongyang fabricationoftwodimensionalbisub2submoosub6subnanosheetdecoratedbisub2submoosub6subbisub4subosub5subbrsub2subtypeiiheterojunctionandtheenhancedphotocatalyticdegradationofantibiotics AT yanzhang fabricationoftwodimensionalbisub2submoosub6subnanosheetdecoratedbisub2submoosub6subbisub4subosub5subbrsub2subtypeiiheterojunctionandtheenhancedphotocatalyticdegradationofantibiotics |