1
|
Asim M, Khan A. Fabrication of a Novel Co/CoO@Fe 2 V 4 O 13 Composite Catalyst as a Photoanode for Enhanced Photoelectrochemical Water Oxidation. Chem Asian J 2023; 18:e202300537. [PMID: 37721194 DOI: 10.1002/asia.202300537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/19/2023]
Abstract
Herein, the synthesis of a novel composite photocatalyst, Co/CoO@Fe2 V4 O13 , is reported by the deposition of CoO metal oxide nanoparticles on the surface of Fe2 V4 O13 bimetallic oxide. The synthesised photocatalyst exhibited a band gap of roughly 1.8 eV, rendering it responsive to the complete visible light spectrum of the sun, thereby enabling optimal absorption of solar radiation. The Co/CoO@Fe2 V4 O13 composites demonstrated an enhanced photoelectrochemical water oxidation capacity compared to pristine Fe2 V4 O13 when exposed to visible light. The enhanced performance is attributed primarily to the creation of a p-n junction at the interface of Fe2 V4 O13 and Co/CoO, as well as the Z-scheme charge transfer mechanism, which aids in the separation and transfer of photogenerated charge carriers. Light absorption by Co nanoparticles via plasmonic excitation and intra- and inter-band transitions in the composite structure is also likely, resulting in increased composite efficiency. Our findings indicate that Co/CoO@Fe2 V4 O13 composites show promising performance for solar water splitting applications and offer new perspectives for designing effective photocatalysts.
Collapse
Affiliation(s)
- Mohd Asim
- Department of Chemistry, Faculty of Science, University of Jeddah, Jeddah, 21589, Saudi Arabia
| | - Abuzar Khan
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Box 5040, Dhahran, 31261, Saudi Arabia
| |
Collapse
|
2
|
Liu Q, Fan Z, Yi X, Chen S, Li B, Luo W. Porous polyimide/carbon quantum dots/ZnS quantum dots material aerogel for efficient visible-light photocatalytic degradation over oxytetracycline. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
3
|
Yang X, Ma W, Lin H, Ao S, Liu H, Zhang H, Tang W, Xiao H, Wang F, Zhu J, Liu D, Lin S, Zhang Y, Zhou Z, Chen C, Liang H. Molecular mechanisms of the antibacterial activity of polyimide fibers in a skin-wound model with Gram-positive and Gram-negative bacterial infection in vivo. NANOSCALE ADVANCES 2022; 4:3043-3053. [PMID: 36133513 PMCID: PMC9479675 DOI: 10.1039/d2na00221c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/01/2022] [Indexed: 06/16/2023]
Abstract
Recently, the need for antibacterial dressings has amplified because of the increase of traumatic injuries. However, there is still a lack of ideal, natural antibacterial dressings that show an efficient antibacterial property with no toxicity. Polyimide (PI) used as an implantable and flexible material has been recently reported as a mixture of particles showing more desirable antibacterial properties. However, we have identified a novel type of natural polyimide (PI) fiber that revealed antibacterial properties by itself for the first time. The PI fiber material is mainly composed of C, N, and O, and contains a small amount of Ca and Cl; the characteristic peaks of polyimide appear at 1774 cm-1, 1713 cm-1, 1370 cm-1, 1087 cm-1, and 722 cm-1. PI fibers displayed significant antibacterial activities against Escherichia coli (as a Gram-negative bacteria model) and methicillin-resistant Staphylococcus aureus (MRSA, as a Gram-positive bacteria model) according to the time-kill kinetics in vitro, and PI fibers damaged both bacterial cell walls directly. PI fibers efficiently ameliorated a local infection in vivo, inhibited the bacterial burden, decreased infiltrating macrophages, and accelerated wound healing in an E. coli- or MRSA-infected wound model. In conclusion, PI fibers used in the present study may act as potent antibacterial dressings protecting from MRSA or E. coli infections and as promising candidates for antimicrobial materials for trauma and surgical applications.
Collapse
Affiliation(s)
- Xia Yang
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Wei Ma
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Hua Lin
- Faculty of Materials and Energy, Southwest University Chongqing 400715 P. R. China
| | - Shengxiang Ao
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Haoru Liu
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Hao Zhang
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Wanqi Tang
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Hongyan Xiao
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Fangjie Wang
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Junyu Zhu
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Daoyan Liu
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| | - Shujun Lin
- Changchun HiPolyking Co. Ltd. No. 666B, Super Street Jilin 132000 P. R.China
| | - Ying Zhang
- Shanghai Kington Technology Limited 8 Jinian Road Shanghai 200433 P. R. China
| | - Zhongfu Zhou
- School of Materials Science & Engineering, Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
| | - Changbin Chen
- The Center for Microbes, Development, and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences Shanghai 200031 P. R. China
| | - Huaping Liang
- Department of Wound Infection and Drug, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University (Third Military Medical University) Chongqing 400042 P. R. China
| |
Collapse
|