Unlocking the potential of multifunctional and highly porous Ti3C2/TiO2@Bi2O3 - based MXene: Synergetic photocatalytic activation of peroxymonosulfate, hydrogen evolution and antimicrobial activity

被引：13
作者：
Gul, Ikhtiar [1 ]
Sayed, Murtaza [1 ]
Rehman, Faiza [2 ]
Wang Jinlong [3 ]
Fu, Pingfeng [4 ]
Zhang, Yuliang [4 ]
Nadagouda, Mallikarjuna N. [5 ]
机构：
[1] Univ Peshawar, Natl Ctr Excellence Phys Chem, Radiat & Environm Chem Lab, Peshawar 25120, Pakistan
[2] Univ Poonch, Dept Chem, Rawalakot, Azad Kashmir, Pakistan
[3] Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China
[4] Univ Sci & Technol Beijing, Sch Civil & Resources Engn, Beijing 100083, Peoples R China
[5] Wright State Univ, Dept Mech & Mat Engn, Dayton, OH 45435 USA
来源：
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2024年 / 359卷
关键词：
Photocatalysis; Ti3C2/TiO2@Bi2O3; Schottky and p-n junctions; Antibacterial activity; H-2; evolution; DOPED TIO2; DEGRADATION; TI3C2; COMPOSITES; GENERATION; NANOTUBES; MECHANISM; GROWTH;
D O I：
10.1016/j.apcatb.2024.124493
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel and efficient solar light responsive multi layered highly porous MXene-based Ti3C2/TiO2@Bi2O3 photocatalyst was synthesized by hydro/solvothermal technique. The optimized band gap (2.09 eV), high surface area (28.39 m(2)/g), schottky and p-n junctions remarkably enhanced the effectiveness of TTB20 in the solar region. The degradation of sulfadiazine (SDZ) by TTB20 under solar light was enhanced from 76.60 % to 97.40 % when coupled with 0.5 mM peroxymonosulfate (HSO5-) at an irradiation time of 30 min. The radical scavenging investigations indicated that SO4 center dot-, O-2(center dot-) and h(+) are primarily engaged in photocatalytic activity. Moreover, the TTB20 sample showed promising activity against E-coli. In addition, the TTB20 sample displayed a remarkable 4.15-fold higher photocatalytic H-2 evolution rate than the TTB0 sample. Thus, the present study suggests that TTB20/HSO5-/solar light is an auspicious approach for addressing environmental pollution, health issues and energy crises.
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页数：21
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