污泥碳促进钛酸钡压电特性以激活恩诺沙星的过硫酸盐降解

IF 2.8 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Journal of chemical technology and biotechnology Pub Date : 2024-09-07 DOI:10.1002/jctb.7740
Jun Chen, Xue Li, Xiaohong Yang, Yutong Wang, Zongsheng Zhan, Dawei Teng, Mingxia Du, Dong Lv, Kaiqi Yao, Chunnian Da, Mengqiu Xu
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引用次数: 0

摘要

背景使用透辉石型钛酸钡(BaTiO3)的压电催化已被应用于通过压电催化过硫酸盐(PS)分解难熔有机污染物。然而,BaTiO3 面临着比表面积有限、导电性差和容易团聚等挑战,因此有必要探索新方法来提高其压电效率。结果利用污水处理产生的污泥碳(SC)和 BaTiO3 开发了一种新型压电催化材料(BaTiO3/SC)。BaTiO3/SC 的比表面积达到 67.92 m2 g-1,是单独使用 BaTiO3 的 9 倍。在复合材料中加入 SC 增加了活性位点的数量,提高了石墨化程度,改善了导电性,并为 BaTiO3/SC 提供了更稳定的结构。这种材料能够从超声波中获取机械振动能量,从而产生压电催化特性并激活 PS,使恩诺沙星(ENR)在水中的分解率在 80 分钟内达到 93%。BaTiO3/SC 压电催化活化 PS 会产生活性氧(ROS),如 -OH 和 SO4--。这些 ROS 会攻击 ENR 的喹诺酮环,而 ENR 的喹诺酮环很容易被裂解,从而导致 ENR 分解成毒性较低的中间体。结论 SC 的加入增强了 BaTiO3 的压电性能,使 BaTiO3/SC 成为一种新型的包晶型压电催化材料,提高了压电效率。BaTiO3/SC 系统通过其对 PS 的压电催化活化,展示了在水处理中分解难分解有机污染物的潜力。© 2024 化学工业协会 (SCI)。
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Sludge carbon promotes barium titanate piezoelectric property to activate persulfate degradation of enrofloxacin

BACKGROUND

Piezoelectric catalysis using perovskite-type barium titanate (BaTiO3) has been applied to the decomposition of refractory organic pollutants through piezoelectric catalytic persulfate (PS). Nevertheless, challenges such as a limited specific surface area, poor electrical conductivity and a tendency towards agglomeration in BaTiO3 necessitate the exploration of novel methods to enhance its piezoelectric efficiency.

RESULTS

Sludge carbon (SC) from sewage treatment and BaTiO3 was utilized to develop a novel piezoelectric catalytic material (BaTiO3/SC). The specific surface area of BaTiO3/SC reached 67.92 m2 g−1, which is nine times larger than that of BaTiO3 alone. The inclusion of SC in the composite enhanced the number of active sites and contributed to a higher degree of graphitization, improved electrical conductivity, and provided a more stable structure for BaTiO3/SC. This material was capable of harvesting mechanical vibration energy from ultrasound, thereby generating piezoelectric catalytic properties and activating PS to achieve a 93% decomposition ratio of enrofloxacin (ENR) in water within 80 min. The activation of PS by BaTiO3/SC piezocatalysis led to the production of reactive oxygen species (ROS), such as OH and SO4−•. These ROS attack the quinolone ring of ENR, which is susceptible to cleavage, resulting in the decomposition of ENR into intermediates of lower toxicity.

CONCLUSION

The incorporation of SC has enhanced the piezoelectric performance of BaTiO3, rendering BaTiO3/SC a novel perovskite-type piezoelectric catalytic material that improves piezoelectric efficiency. The BaTiO3/SC system, through its piezoelectric catalytic activation of PS, demonstrates potential for decomposition of refractory organic pollutants in water treatment. © 2024 Society of Chemical Industry (SCI).

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来源期刊
CiteScore
7.00
自引率
5.90%
发文量
268
审稿时长
1.7 months
期刊介绍: Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.
期刊最新文献
Issue Information In Focus: Materials and the Environment Symposium (XXXI IMRC México) Issue Information Adsorption behavior of graphite‐like walnut shell biochar modified with ammonia for ciprofloxacin in aqueous solution Eco‐friendly approaches for synthesis of indolyl 1H‐pyrroles using rice‐husk‐derived carbonaceous sulfonation as the green catalyst
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