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Highly Efficient Bi4Ti3O12/g-C3N4/BiOBr Dual Z-Scheme Heterojunction Photocatalysts with Enhanced Visible Light-Responsive Activity for the Degradation of Antibiotics
Langmuir ( IF 3.7 ) Pub Date : 2022-07-29 , DOI: 10.1021/acs.langmuir.2c00907 Lisi Xie 1 , Pengfei Zhu 1, 2, 3 , Jing Xu 1 , Ming Duan 1, 3 , Shasha Zhang 1 , Xiaolong Wu 1
Langmuir ( IF 3.7 ) Pub Date : 2022-07-29 , DOI: 10.1021/acs.langmuir.2c00907 Lisi Xie 1 , Pengfei Zhu 1, 2, 3 , Jing Xu 1 , Ming Duan 1, 3 , Shasha Zhang 1 , Xiaolong Wu 1
Affiliation
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A novel Bi4Ti3O12/g-C3N4/BiOBr(BTO/CN/BOB) composite was synthesized by a solvothermal–mechanical mixed thermal method. The composition, structure, and micromorphology of the samples were analyzed. The BTO/CN/BOB composite photocatalyst shows better photocatalytic performance for tetracycline hydrochloride (TC) degradation compared to Bi4Ti3O12 and binary composite photocatalysts. The highest degradation rate of TC can reach 89.84% using the BTO/CN/BOB photocatalyst under the optimal conditions, and BTO/CN/BOB still exhibits good photocatalytic properties after recycling. Moreover, it also shows good photodegradation activity for different kinds of antibiotics, implying its wide application prospect. The photocatalytic performance and reuse stability of BTO/CN/BOB were significantly improved, which may be because of the enhanced spectral absorption range and efficient electron transfer capability by the synergistic effect and interaction among Bi4Ti3O12, BiOBr, and g-C3N4. Finally, the possible degradation pathway and electron transfer mechanism of the dual Z-scheme heterojunction are proposed.
中文翻译：
具有增强可见光响应活性的高效 Bi4Ti3O12/g-C3N4/BiOBr 双 Z 型异质结光催化剂降解抗生素
采用溶剂热-机械混合热法合成了一种新型Bi 4 Ti 3 O 12 /gC 3 N 4 /BiOBr(BTO/CN/BOB)复合材料。分析了样品的组成、结构和微观形态。与Bi 4 Ti 3 O 12相比，BTO/CN/BOB复合光催化剂对盐酸四环素（TC）的降解表现出更好的光催化性能和二元复合光催化剂。在最佳条件下使用BTO/CN/BOB光催化剂对TC的最高降解率可达89.84%，回收后BTO/CN/BOB仍表现出良好的光催化性能。此外，它还对不同种类的抗生素表现出良好的光降解活性，具有广阔的应用前景。BTO/CN/BOB的光催化性能和再利用稳定性显着提高，这可能是由于Bi 4 Ti 3 O 12、BiOBr和gC 3之间的协同作用和相互作用增强了光谱吸收范围和有效的电子转移能力。氮4. 最后，提出了双Z型异质结可能的降解途径和电子转移机制。
更新日期：2022-07-29
中文翻译：
具有增强可见光响应活性的高效 Bi4Ti3O12/g-C3N4/BiOBr 双 Z 型异质结光催化剂降解抗生素
采用溶剂热-机械混合热法合成了一种新型Bi 4 Ti 3 O 12 /gC 3 N 4 /BiOBr(BTO/CN/BOB)复合材料。分析了样品的组成、结构和微观形态。与Bi 4 Ti 3 O 12相比，BTO/CN/BOB复合光催化剂对盐酸四环素（TC）的降解表现出更好的光催化性能和二元复合光催化剂。在最佳条件下使用BTO/CN/BOB光催化剂对TC的最高降解率可达89.84%，回收后BTO/CN/BOB仍表现出良好的光催化性能。此外，它还对不同种类的抗生素表现出良好的光降解活性，具有广阔的应用前景。BTO/CN/BOB的光催化性能和再利用稳定性显着提高，这可能是由于Bi 4 Ti 3 O 12、BiOBr和gC 3之间的协同作用和相互作用增强了光谱吸收范围和有效的电子转移能力。氮4. 最后，提出了双Z型异质结可能的降解途径和电子转移机制。
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