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Wang X, Su N, Wang X, Cao D, Xu C, Wang X, Yan Q, Lu C, Zhao H. Fabrication of 0D/1D S-scheme CoO-CuBi 2O 4 heterojunction for efficient photocatalytic degradation of tetracycline by activating peroxydisulfate and product risk assessment. J Colloid Interface Sci 2024; 661:943-956. [PMID: 38330666 DOI: 10.1016/j.jcis.2024.01.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/16/2024] [Accepted: 01/30/2024] [Indexed: 02/10/2024]
Abstract
The step-scheme (S-scheme) heterojunction has excellent redox capability, effectively degrading organic pollutants in wastewater. Combining S-scheme heterojunction with activated persulfate advanced oxidation process reasonably can further enhance the degradation of Emerging Contaminants. Herein, a novel zero-dimensional/one-dimensional (0D/1D) CoO-CuBi2O4 (CoO-CBO) photocatalyst with S-scheme heterojunction was designed by hydrothermal and solvothermal methods. The band structure and electron and hole transfer pathway of CoO-CBO were analyzed using the ex-situ and in-situ X-ray photoelectron spectroscopy (XPS), Ultraviolet and Visible Spectrophotometer (UV-Vis) and optical radiation Kelvin probe force microscope (KPFM), and the formation of S-scheme heterojunction was demonstrated. The photocatalytic activity of ·S-scheme CoO-CBO heterojunction was carried out by degrading tetracycline (TC) with activating potassium monopersulfate triple salt under visible light. Compared with pure CuBi2O4 and pure CoO, 30%CoO/CuBi2O4 catalyst exhibited the highest TC degradation performance after activating persulfate, degrading 89.5% of TC within 90 min. On the one hand, the S-scheme heterojunction formed between CoO and CBO had a high redox potential. On the other hand, the activation of persulfate by Co and Cu could accelerate redox cycles and facilitate the generation of active radicals such as SO4-, O2- and OH, promoting the separation of the photogenerated e- and h+ in the composite, enhancing the peroxydisulfate (PDS) activation performance and improving the degradation effect of TC. Then, a gradual decrease in the toxicity of the intermediates in the TC degradation process was detected by ECOCER. In all, this study provided an S-scheme CoO/CuBi2O4 heterojunction that can activate PDS to degrade TC efficiently, which provided a new idea for the study of novel pollutant degradation and environmental toxicology.
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Affiliation(s)
- Xueying Wang
- School of Water Resource and Environment, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Center for Ecological and Environmental Geology Research, Hebei Geo University, Shijiazhuang 050031, China
| | - Ni Su
- School of Water Resource and Environment, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Center for Ecological and Environmental Geology Research, Hebei Geo University, Shijiazhuang 050031, China
| | - Xinyu Wang
- School of Water Resource and Environment, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Center for Ecological and Environmental Geology Research, Hebei Geo University, Shijiazhuang 050031, China
| | - Delu Cao
- School of Water Resource and Environment, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Center for Ecological and Environmental Geology Research, Hebei Geo University, Shijiazhuang 050031, China
| | - Chunlan Xu
- School of Water Resource and Environment, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Center for Ecological and Environmental Geology Research, Hebei Geo University, Shijiazhuang 050031, China
| | - Xu Wang
- School of Water Resource and Environment, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Center for Ecological and Environmental Geology Research, Hebei Geo University, Shijiazhuang 050031, China
| | - Qiaozhi Yan
- School of Water Resource and Environment, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Center for Ecological and Environmental Geology Research, Hebei Geo University, Shijiazhuang 050031, China
| | - Changyu Lu
- School of Water Resource and Environment, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Center for Ecological and Environmental Geology Research, Hebei Geo University, Shijiazhuang 050031, China.
| | - Huimin Zhao
- College of Chemistry and Chemical Engineering, Heze University, Heze 274015, China.
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Aslani R, Namazi H. Fabrication of a new photoluminescent and pH-responsive nanocomposite based on a hyperbranched polymer prepared from amino acid for targeted drug delivery applications. Int J Pharm 2023; 636:122804. [PMID: 36889416 DOI: 10.1016/j.ijpharm.2023.122804] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
In this study, the Fe3O4 nanoparticles were encapsulated in the hyperbranched poly L-lysine citramid (HBPLC). The Fe3O4-HBPLC nanocomposite modified with L-arginine and quantum dots (QDs) to obtain Fe3O4-HBPLC-Arg/QDs as a new photoluminescent and magnetic nanocarrier for the pH-responsive release and targeted delivery of Doxorubicin (DOX). The prepared magnetic nanocarrier was fully characterized using different techniques. Its various potential as a magnetic nanocarrier was evaluated. The in-vitro drug release studies exhibited that the prepared nanocomposite has pH-responsive behavior. The antioxidant study revealed good antioxidant properties of the nanocarrier. Also, the nanocomposite revealed excellent photoluminescence with a quantum yield of 48.5 %. Cellular uptake studies showed that Fe3O4-HBPLC-Arg/QD has high cell uptake in MCF-7 cells and can be used for bioimaging applications. In-vitro cytotoxicity, colloidal stability, and enzymatic degradability studies revealed that the prepared nanocarrier is non-toxic (with cell viability of 94%), stabile and biodegradable (about 37%). The nanocarrier was hemocompatible with 8% hemolysis. Also, according to the apoptosis and MTT assays, the Fe3O4-HBPLC-Arg/QD-DOX induced greater toxicity and cellular apoptosis against breast cancer cells about 47.0 %.
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Affiliation(s)
- Robab Aslani
- Research Laboratory of Dendrimers and Nanopolymers, Faculty of Chemistry, University of Tabriz, P.O. Box 51666, Tabriz, Iran
| | - Hassan Namazi
- Research Laboratory of Dendrimers and Nanopolymers, Faculty of Chemistry, University of Tabriz, P.O. Box 51666, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science, Tabriz, Iran.
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Ren M, Hou J, Ma J, Zhang Y, Liu M, Tan X, Zhao P, Lin A, Cui J. Superior electron utilization of the intermetallic L10‑FePt-dispersed g-C3N4 for high-efficiency activating peroxymonosulfate. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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