过硫酸盐的 II 型 Cu3BiS3/Bi2Fe4O9 光催化活化对四环素的协同降解和生态毒理学评估

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2024-11-12 DOI:10.1016/j.colsurfa.2024.135757

Jie Liu , Junjie Ma , Ning Ding , Hong Liu

引用次数: 0

摘要

近年来，人们对抗生素的依赖性不断增加，导致抗生素的过度使用日益严重，而四环素（TC）是一种广泛使用的抗生素。本研究通过结合 Cu3BiS3 和 Bi2Fe4O9 构建了一个分层构型体系，用于研究光催化活化过硫酸盐降解 TC，并全面评价了其对 TC 的光催化性能。结果发现，Bi2Fe4O9 和 Cu3BiS3 形成了 II 型异质结，抑制了光生载流子的络合，并与过硫酸盐（PMS）协同促进了活性自由基的生成，从而增强了光催化效果。此外，在过硫酸盐体系Cu3BiS3/Bi2Fe4O9/PMS/可见光（Vis）的光催化活化中，当催化剂注入量为 0.3 g/L、TC 浓度为 20 mg/L、PMS 浓度为 1 mmol/L、pH=6.5 时，12.5 %Cu3BiS3/Bi2Fe4O9 的催化性能最佳，在 60 min 内降解了 97.9 % 的 TC。12.5%Cu3BiS3/Bi2Fe4O9/PMS/Vis体系的活性物质为SO4-->O2-->h+>O12>-OH。此外，还提出了 Cu3BiS3/Bi2Fe4O9/PMS/Vis 体系降解 TC 的机理和途径，并利用毒性估算软件工具（TEST）进行毒性估算，证明该体系可实现 TC 的安全转化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Synergistic degradation and ecotoxicology assessment of tetracycline by II-scheme Cu3BiS3/Bi2Fe4O9 photocatalytic activation of peroxymonosulfate

The increasing reliance on antibiotics in recent years has led to the growing overuse of antibiotics, and tetracycline (TC) is a widely used antibiotic. In this study, a hierarchical configuration system was constructed by combining

C u_{3} B i S_{3}

and

B i_{2} F e_{4} O_{9}

for the study of photocatalytic activation of persulfate degradation of TC, and its photocatalytic performance on TC was fully evaluated. Results found that

B i_{2} F e_{4} O_{9}

and

C u_{3} B i S_{3}

formed a type-II heterojunction, which inhibited the complexation of photogenerated carriers and synergized with peroxymonosulfate (PMS) to promote the generation of reactive radicals and thus enhance the photocatalytic effect. Also, in the photocatalytic activation of persulfate system

C u_{3} B i S_{3}

B i_{2} F e_{4} O_{9}

/PMS/ visible (Vis), the best catalytic performance of 12.5 %

C u_{3} B i S_{3}

B i_{2} F e_{4} O_{9}

was achieved when the catalyst injection was 0.3 g/L, the concentration of TC was 20 mg/L, the concentration of PMS was 1 mmol/L, and the pH=6.5, which degraded 97.9 % of TC within 60 min. The 12.5 %

C u_{3} B i S_{3}

B i_{2} F e_{4} O_{9}

/PMS/ Vis system has a contribution of active substances of

S O_{4}^{• -}

O_{2}^{• -}

h^{+}

{{}^{1}O}_{2}

• O H

. Further, the degradation mechanism and pathways of TC by the

C u_{3} B i S_{3}

B i_{2} F e_{4} O_{9}

/PMS/Vis system was proposed, and it was proved that the system could realize the safe conversion of TC according to the toxicity estimation using software Toxicity Estimation Software Tool (TEST).

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.