具有光热效应的多级 Ti3C2/Bi12O17Br2 肖特基异质结简单合成及其太阳能驱动抗生素光降解的研究

打开文本图片集

Abstract： Photocatalytic technology is considered to be an efficient and green approach for removing tetracycline hydrochloride（TC）to meet thedemands ofsustainable development.Here，afacilestirringprocesswasemployedto construct T13C2/Bi12O17Br2 （termed as TBOB） Schottky heterojunction with a hierarchical structure，in which the Bi12O17Br2 componentwasclosely deposited on the surface of T13C2 .The TCphotodegradation performancewas estimatedfor all catalystsundersimulatedsolar light. Compared with Bi12O17Br2 ，TBOBmaterialsexhibited the superior photodegradation activity due to the synergistic effect between Ti3C2 and Bi12O17Br2 ，which could increase light harvesting capacity derived from loading， promote the charge carrier separation due to the formed Schottky heterojunction，andfaclite surfacereaction kinetics owing tothe photothermal effect. Besides，some crucial nfluencing factors on thephotocatalyticperformanceover TBOBcomposites were separately studiedindetail.Thefreeradicalcapture experiment and electron paramagnetic resonance （EPR）technique confirmed the predominant active species of ⋅O2- and e- fortheTC photodegradation. Combined with experimental analysis andtheoretical calculations，insightinto thecharge carrier transferand photodegradation mechanisms were proposed.This study provides theoreticaland experimental insights for the rational design of high-efficiency photothermal-assisted Ti3C2 -basedphotocatalysts.

Key Words：Bi12O17Br2；Ti3C2； Schottky heterojunction;Photothermal effect;Photodegradation

摘要：在去除盐酸四环素（TC）方面，光催化技术被认为是一种高效和绿色的方法，可满足可持续发展的需求。（剩余28357字）