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Liang Y, Yu T, Lang M, Chen F, Cao M, Chen B, Wang P, Liang Y, Wang Y. In situ growth of BiOBr on copper foam conductive substrate with enhanced photocatalytic performance. Heliyon 2024; 10:e25929. [PMID: 38404782 PMCID: PMC10884819 DOI: 10.1016/j.heliyon.2024.e25929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/26/2024] [Accepted: 02/05/2024] [Indexed: 02/27/2024] Open
Abstract
Photocatalysis technology based on solar-powered semiconductors is widely recognized as a promising approach for achieving eco-friendly, secure, and sustainable degradation of organic contaminants. Nevertheless, conventional photocatalysts exhibit drawbacks such as a wide bandgap, and rapid recombination of photoinduced electron/hole pairs, in addition to complicated separation and recovery procedures. In this research, we cultivated BiOBr in situ on the surface of copper foam to fabricate a functional photocatalyst (denoted as BiOBr/Cu foam), which was subsequently employed for the photodegradation of Methylene Blue. Based on photodegradation experiments, the 0.3 BiOBr/Cu foam demonstrates superior photocatalytic efficacy compared to other photocatalysts under solar light irradiation. Furthermore, its ease of separation from the solution enhances its potential for reuse. The analysis of charge transfer revealed that the copper foam functions as an effective electron scavenger within the BiOBr/Cu foam, thereby facilitating charge separation and the generation of photo-induced holes. This phenomenon contributes to a significantly enhanced production of hydroxyl radicals. This study provides a valuable perspective on the design and synthesis of photocatalysts with heightened practicality, employing a conductive substrate.
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Affiliation(s)
- Ying Liang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Ting Yu
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Man Lang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Fengjie Chen
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Mengxi Cao
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Bolei Chen
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Pu Wang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Yong Liang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Yawei Wang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, 430056, China
- State Key Laboratory of Environmental Chemistry and Eco-toxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
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Wang H, Xu X, Wang X, Qu W, Qing Y, Li S, Chen B, Ying B, Li R, Qin Y. Performance optimization of biomimetic ant-nest silver nanoparticle coatings for antibacterial and osseointegration of implant surfaces. Biomater Adv 2023; 149:213394. [PMID: 37001309 DOI: 10.1016/j.bioadv.2023.213394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/27/2023] [Accepted: 03/15/2023] [Indexed: 05/02/2023]
Abstract
Infection prevention and bone-implant integration remain major clinical challenges. Silver nanoparticle (AgNPs) bone-implant coatings have received extensive attention. Balancing the toxicity and antibacterial properties of AgNP coatings has become a significant problem. In this study, inspired by the structure of the ant-nest, a polyetherimide (PEI) coating with ant-nest structure was prepared, aiming to realize the structural modification of the AgNPs coating. AgNPs were loaded in the inner porous area of the PEI ant-nest coating, avoiding direct contact between AgNPs and cells. The nanopores on the surface of the coating ensured the orderly release of silver ions. SEM, FTIR, XPS, and XRD experiments confirmed that the PEI ant-nest coating was successfully prepared. Interestingly, in the PEI ant-nest coating, Ag+ showed a steady increase in the release trend within 28 days, and there was no early burst release phenomenon. In -vivo experiments showed a good control effect for local infection. In order to improve the osteogenic properties of the materials, 45S5 bioactive glasses (BG) were loaded to achieve further osseointegration. In general, this natural ant-nest-inspired surface modification coating for orthopedic prostheses provides a new strategy for balancing the antibacterial and toxic effects of AgNP coatings.
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Affiliation(s)
- Hao Wang
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China
| | - Xinyu Xu
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China
| | - Xingyue Wang
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China
| | - Wenrui Qu
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China
| | - Yunan Qing
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China
| | - Shihuai Li
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China
| | - Bo Chen
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China
| | - Boda Ying
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China
| | - Ruiyan Li
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China.
| | - Yanguo Qin
- Department of Orthopaedics, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China.
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Zhang Y, Wu G, Ding C, Liu F, Liu D, Masuda T, Yoshino K, Hayase S, Wang R, Shen Q. Surface-Modified Graphene Oxide/Lead Sulfide Hybrid Film-Forming Ink for High-Efficiency Bulk Nano-Heterojunction Colloidal Quantum Dot Solar Cells. Nanomicro Lett 2020; 12:111. [PMID: 34138103 PMCID: PMC7770832 DOI: 10.1007/s40820-020-00448-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 04/17/2020] [Indexed: 06/12/2023]
Abstract
Solution-processed colloidal quantum dot solar cells (CQDSCs) is a promising candidate for new generation solar cells. To obtain stable and high performance lead sulfide (PbS)-based CQDSCs, high carrier mobility and low non-radiative recombination center density in the PbS CQDs active layer are required. In order to effectively improve the carrier mobility in PbS CQDs layer of CQDSCs, butylamine (BTA)-modified graphene oxide (BTA@GO) is first utilized in PbS-PbX2 (X = I-, Br-) CQDs ink to deposit the active layer of CQDSCs through one-step spin-coating method. Such surface treatment of GO dramatically upholds the intrinsic superior hole transfer peculiarity of GO and attenuates the hydrophilicity of GO in order to allow for its good dispersibility in ink solvent. The introduction of BTA@GO in CQDs layer can build up a bulk nano-heterojunction architecture, which provides a smooth charge carrier transport channel in turn improves the carrier mobility and conductivity, extends the carriers lifetime and reduces the trap density of PbS-PbX2 CQDs film. Finally, the BTA@GO/PbS-PbX2 hybrid CQDs film-based relatively large-area (0.35 cm2) CQDSCs shows a champion power conversion efficiency of 11.7% which is increased by 23.1% compared with the control device.
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Affiliation(s)
- Yaohong Zhang
- Faculty of Informatics and Engineering, The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Guohua Wu
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, People's Republic of China.
| | - Chao Ding
- Faculty of Informatics and Engineering, The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Feng Liu
- Faculty of Informatics and Engineering, The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Dong Liu
- Faculty of Informatics and Engineering, The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Taizo Masuda
- X-Frontier Division, Toyota Motor Corporation, Shizuoka, 471-8571, Japan
| | - Kenji Yoshino
- Department of Electrical and Electronic Engineering, University of Miyazaki, Miyazaki, 889-2192, Japan
| | - Shuzi Hayase
- Faculty of Informatics and Engineering, The University of Electro-Communications, Tokyo, 182-8585, Japan
| | - Ruixiang Wang
- Beijing Engineering Research Centre of Sustainable Energy and Buildings, Beijing University of Civil, Engineering and Architecture, Beijing, 102616, People's Republic of China.
| | - Qing Shen
- Faculty of Informatics and Engineering, The University of Electro-Communications, Tokyo, 182-8585, Japan.
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Ahmadi T, Bahar S, Mohammadi Ziarani G, Badiei A. Formation of functionalized silica-based nanoparticles and their application for extraction and determination of Hg (II) ion in fish samples. Food Chem 2019; 300:125180. [PMID: 31325753 DOI: 10.1016/j.foodchem.2019.125180] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 06/30/2019] [Accepted: 07/12/2019] [Indexed: 12/14/2022]
Abstract
An isonicotinic acid hydrazide (INAH) chemically modified fumed silica, as a novel adsorbent, was designed for the preconcentration and determination of Hg (II) ions in fish samples via the solid phase extraction followed by the hydride generation atomic absorption spectrometry (HG-AAS). In this work, the efficiency of the synthesized adsorbent was investigated to determine its ability for the extraction of the Hg (II) ions from the aqueous solutions. The extraction efficiency was investigated by optimizing of different experimental conditions, such as pH, sample volume, flow rate, adsorbent dosage, and eluent type. Under the optimal conditions, a linear calibration curve for the solid phase extraction method was obtained in the range of between 0.12 and 16.5 μg L-1. The obtained detection limit and preconcentration factor were 0.018 μg L-1 and 25, respectively (RSD > 3%). The proposed optimized method was successfully applied to fish samples.
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Affiliation(s)
- Tahereh Ahmadi
- Department of Chemistry, Alzahra University, P.O. Box 1993893973, Tehran, Iran
| | - Shahriyar Bahar
- Department of Chemistry, Alzahra University, P.O. Box 1993893973, Tehran, Iran.
| | | | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
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Abstract
AIM: To investigate the uptake difference between bovine serum albumin nanoparticle (BSA-NP) and bovine serum albumin nanoparticles with their surface modified by glycyrrhizin (BSA-NP-GL) and to develop a novel hepatocyte targeting BSA-NP-GL based on active targeting technology mediated by specific binding site of GL on rat cellular membrane.
METHODS: Calcein loaded bovine serum albumin nanoparticles (Cal-BSA-NP) were prepared by desolvation process. Glycyrrhizin was conjugated to the surface reactive amino groups (SRAG) of Cal-BSA-NP by sodium periodate oxidization, which resulted in calcein-loaded bovine serum albumin nanoparticles with their surface modified by glycyrrhizin (Cal-BSA-NP-GL). The morphology of the two types of prepared nanoparticles (NP) was observed by transmission electron microscopy. The diameter of NP was measured with a laser particle size analyzer. The interaction between Cal-BSA-NP-GL and primary cultured hepatocytes was studied through cellular uptake experiments. The uptake amount of Cal-BSA-NP-GL and Cal-BSA-NP by rat hepatocytes was determined by fluorospectrophotometry. Uptake characteristics were investigated through experiments of competitive inhibition of specific binding site of GL.
RESULTS: Both Cal-BSA-NP-GL and Cal-BSA-NP had regular spherical surfaces. The average diameter of Cal-BSA-NP-GL and Cal-BSA-NP was 77 and 79 nm respectively. The uptake amount of the two NP by hepatocytes reached its maximum at 2 h after incubation. The uptake amount of Cal-BSA-NP-GL by rat hepatocytes was 4.43-fold higher than that of Cal-BSA-NP. There was a significant difference in the uptake of Cal-BSA-NP-GL and Cal-BSA-NP by hepatocytes (P<0.01). The uptake of Cal-BSA-NP-GL was inhibited when GL was added previously to isolated rat hepatocytes, and the uptake of Cal-BSA-NP was not affected by GL.
CONCLUSION: A binding site of GL is present on the surface of rat hepatocytes, BSA-NP-GL may be internalized via this site by hepatocytes and can be used as a drug carrier for active targeting of delivery drugs to hepatocytes.
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Affiliation(s)
- Sheng-Jun Mao
- West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan Province, China
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