Journal of Photochemistry and Photobiology A-chemistry最新文献

{"title":"Corrigendum to “Fluorescent tetrazolylpyrene unnatural nucleoside in sensing BSA protein” [J. Photochem. Photobiol. A: Chem. 463 (2025) 116290]","authors":"Subhendu Sekhar Bag , Hiranya Gogoi , Sujata Roy , Manoj Kumar Pradhan , Sangita Talukdar","doi":"10.1016/j.jphotochem.2025.116599","DOIUrl":"10.1016/j.jphotochem.2025.116599","url":null,"abstract":"","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116599"},"PeriodicalIF":4.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel orange-red-emitting CsSr3Y(PO4)3F:Sm3+ phosphor with high thermal stability for plant growth lighting and WLEDs","authors":"Yilian Ran ,&nbsp;Huixin Yu ,&nbsp;Junjie Feng ,&nbsp;Yu Zhang ,&nbsp;Naiqian Wu ,&nbsp;Chenyi Wang ,&nbsp;Mubiao Xie ,&nbsp;Yuchen Yang ,&nbsp;Ruijin Yu","doi":"10.1016/j.jphotochem.2025.116620","DOIUrl":"10.1016/j.jphotochem.2025.116620","url":null,"abstract":"<div><div>CsSr₃Y(PO₄)₃F:<em>x</em>Sm³⁺ phosphors with fluorapatite structure (<em>x</em> = 1, 2, 5, 10, 15, 20, 25, 30 mol%) were prepared by high-temperature solid-state method. The morphology, optical properties, phase composition, crystal framework, and application scope of the samples were all systematically depicted. The optimal doped concentration of CsSr₃Y(PO₄)₃F:<em>x</em>Sm³⁺ is <em>x</em> = 5 mol% and the internal quantum efficiency (IQE) of CsSr₃Y(PO₄)₃F:5 mol%Sm³⁺ is 75.74 %. Under the excitation of 405 nm, the CsSr₃Y(PO₄)₃F:5 mol%Sm³⁺ phosphor shows a main significant emission peak at 601 nm. The emission intensity of CsSr₃Y(PO₄)₃F:5 mol%Sm³⁺ phosphor at 420 K is still 98.33 % of that at 300 K. Furthermore, the prepared phosphor exhibits good thermal stability and remarkable activation energy <em>E</em>_a (0.64 eV). Additionally, the prepared phosphor has a high color purity. The absorption spectra of some common plant pigments (such as chlorophyll <em>b</em> and phycocyanin) are well matched with the spectra of plant supplemental lights. The emission spectra of the orange-red light emitting diode (LED) and their absorption spectra correspond well. The white light emitting diode (WLED) has a total color rendering index (CRI, <em>R</em>_a) of 91 and a relative color temperature (CCT) as low as 4410 K. In conclusion, CsSr₃Y(PO₄)₃F:Sm³⁺ has a wide range of potential applications in plant growth and LEDs lighting due to its exceptional optical and thermal characteristics.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116620"},"PeriodicalIF":4.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Three-dimensional CNTs/TiO2 self-supporting hybrid fabrics constructed via atomic layer deposition for visible-light-enhanced catalytic activity","authors":"Jianhua Feng,&nbsp;Tianlin Ma,&nbsp;Jing Yang,&nbsp;Gangling Chen","doi":"10.1016/j.jphotochem.2025.116617","DOIUrl":"10.1016/j.jphotochem.2025.116617","url":null,"abstract":"<div><div>The contamination caused by synthetic dyes represents a global challenge that requires immediate and effective solutions. Photocatalysis provides an effective solution to this challenge, and carbon nanotubes (CNTs) represent a promising material for the development of advanced composite photocatalysts. However, the pronounced hydrophobic characteristics significantly hinder its applicability in water-based environments. In this research, the freestanding CNT substrates were modified <em>via</em> the deposition of titanium dioxide (TiO₂) using atomic layer deposition (ALD). The loadings of oxide in CNT fabrics were examined by controlling ALD deposition and subsequent calcination conditions. The morphological characteristics, crystalline structure, wettability, and photocatalytic performance of the deposited CNT fabrics were also systematically investigated in detail. The hydrophilicity of CNT fabrics is promoted <em>via</em> ALD of TiO₂ on one hand, and the functionalized fabrics exhibit excellent photocatalytic degradation performance on the other. Compared with pristine CNT fabric, the TiO₂-CNT composite fabric exhibits excellent photocatalytic degradation performance and stable reusability. After calcination, the integration of CNTs with anatase TiO₂ significantly enhances electron transfer efficiency and markedly reduces the recombination probability occurring between photogenerated electrons and holes.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116617"},"PeriodicalIF":4.1,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tunable Cr3+-Cr3+ ion pair luminescence properties of MgGa2O4:Cr3+ NIR phosphors via alkaline-earth metal co-doping","authors":"Liying Ren ,&nbsp;Dandan Wang ,&nbsp;Daming Yang ,&nbsp;Guiru Sun ,&nbsp;Hang Xu ,&nbsp;Jinnan Xuan ,&nbsp;Boxu Jiang ,&nbsp;Bin Huang ,&nbsp;Tairui Li ,&nbsp;Ming Feng ,&nbsp;Liangliang Zhang","doi":"10.1016/j.jphotochem.2025.116612","DOIUrl":"10.1016/j.jphotochem.2025.116612","url":null,"abstract":"<div><div>The Cr³⁺-Cr³⁺ ion pair has emerged as a highly efficient near-infrared (NIR) luminescence center with improved thermal stability and broader short-wave-infrared (SWIR) bandwidth compared to isolated Cr³⁺ ions. However, its formation typically requires high Cr³⁺ concentrations, which may induce concentration quenching. Herein, we propose an atomic substitution strategy to regulate Cr³⁺-Cr³⁺ pair formation without relying on excessive Cr³⁺ doping. Using MgGa₂O₄: Cr³⁺ as a model system, density functional theory (DFT) calculations combined with experimental analysis reveal that substituting tetrahedral Mg sites with alkaline earth metals influences Cr³⁺-Cr³⁺ ion pair formation. A larger ionic radius at the Mg site facilitates easier formation of Cr³⁺-Cr³⁺ ion pairs. By introducing Be, Ca, Sr, or Ba, we successfully controlled the population of Cr³⁺-Cr³⁺ pair centers, tuning SWIR emission intensity between 800 and 1200 nm. This work deepens understanding of Cr³⁺-Cr³⁺ ion center formation and offers a new route to tailor SWIR luminescence.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116612"},"PeriodicalIF":4.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure, IR spectrum and UV-induced photochemistry of a pyridyl-substituted 1,3,4-oxadiazole-thione in Ar matrix and intermolecular interactions in the neat crystalline phase","authors":"İsa Sıdır ,&nbsp;Susy Lopes ,&nbsp;José António Paixão ,&nbsp;Timur Nikitin ,&nbsp;António Jorge Lopes Jesus ,&nbsp;Rui Fausto","doi":"10.1016/j.jphotochem.2025.116610","DOIUrl":"10.1016/j.jphotochem.2025.116610","url":null,"abstract":"<div><div>The structure, infrared (IR) spectrum and UV-induced (<em>λ &gt;</em> 235 nm) photochemistry of 5-(4-pyridyl)-1,3,4-oxadiazole-2(3<em>H</em>)-thione (abbreviated as <strong>POT</strong>) isolated in a low-temperature argon matrix, at 15 K, were thoroughly investigated. Interpretation of the experimental spectrum was assisted by theoretical calculations undertaken at the DFT(B3LYP)/6–311++G(d,p) level of theory. In the gas phase (and in the cryogenic matrix) the molecule of the compound was found to adopt the thione-amine tautomeric form, where NH is vicinal to C<img>S, i.e., the same tautomeric form previously observed in the neat crystalline form of the compound. Upon sublimation and subsequent deposition into the argon matrix, the compound underwent minor, yet detectable, conversion into other species. These photoproducts were identical to those formed upon in situ broadband UV irradiation (λ &gt; 235 nm) of the matrix-isolated compound. Two different reaction pathways were identified: the first (minor) being the C<img>O open-ring reaction leading to the formation of an isocyanate derivative, and the second (major) corresponding to the OCS extrusion generating allenic and propargylic type bond-shift isomeric nitrilimines. The carbodiimide and cyanamide resulting from subsequent rearrangement of the nitrilimines were also observed both in the as-deposited matrix (as a result of the thermally-induced chemistry taking place during sublimation of the compound) and after in situ UV-irradiation of the matrix. The nitrilimines were only captured during the photolysis experiments and were not observed in the spectra of the initially deposited matrix, because they quickly converted to the more stable carbodiimide and cyanamide isomeric forms during matrix deposition. Coupled-cluster calculations with single and double excitations [CCSD/6–311++G(d,p)] were also performed to further characterize the nitrilimines, revealing that the allenic form is slightly more stable than the propargylic one, in agreement with the spectroscopic data. The IR and Raman spectra of the neat crystalline compound were also analyzed in the temperature range of −140 to 220 °C, and the dominant intermolecular interactions in the crystal were elucidated using CrystalExplorer-based analysis of Hirshfeld surfaces and interaction energies. Overall, this study contributes to understanding of the structure, spectroscopy and chemical reactivity of oxadiazoles.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116610"},"PeriodicalIF":4.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"BODIPY conjugates with monoterpenoids for photodynamic diagnostics and therapy: Design, spectral properties, photostability and antifungal activity","authors":"Galina B. Guseva ,&nbsp;Yulya V. Eremeeva ,&nbsp;Ekaterina Yu. Belyakova ,&nbsp;Svetlana A. Lisovskaya ,&nbsp;Ilmir R. Gilfanov ,&nbsp;Liliya E. Nikitina ,&nbsp;Elena V. Antina","doi":"10.1016/j.jphotochem.2025.116611","DOIUrl":"10.1016/j.jphotochem.2025.116611","url":null,"abstract":"<div><div>The development of BODIPY-based theranostic agents for photodynamic inactivation (PDI) of pathogens is one of the rapidly developing areas. In this work, we present the results of the synthesis of the diiodo-BODIPY with methanol, (+)-myrtenol and thiotherpenoid conjugates. We performed a comparative analysis of the influence of the ester residue nature, iodination, and solvent properties on the spectral, generation characteristics and photostability of the alkyl- and diiodo-BODIPY conjugates, and their efficiency to penetrate and inhibit <em>Candida albicans</em> cells under light. Non-halogenated conjugates of BODIPY with methanol, (+)-myrtenol and thiotherpenoid show potential for fluorescence diagnostics due to their high fluorescence, photostability, and membranotropicity. Diiodo-substituted terpene-BODIPY conjugates have higher singlet oxygen generation efficiency and greater affinity for lipid biostructures compared to non-halogenated analogues. Furthermore, halogenation and conjugation of BODIPY to a monoterpenoid modify the preferred biotarget and contribute to the effective inhibition of <em>Candida albicans</em> viability. These results suggest that diiodo-substituted terpene-BODIPY conjugates may be promising antifungal agents for blocking fungal virulence.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116611"},"PeriodicalIF":4.1,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alicycloimide substitution strategy for realizing solution-Processable small molecules material with thermally activated delayed fluorescence","authors":"Yubo Long ,&nbsp;Zhaokun Lu ,&nbsp;Yunfei Cao ,&nbsp;Jiantao Ru ,&nbsp;Haiyi Li ,&nbsp;Shengming Li","doi":"10.1016/j.jphotochem.2025.116608","DOIUrl":"10.1016/j.jphotochem.2025.116608","url":null,"abstract":"<div><div>Highly efficient solution-processable emitters, especially small molecules, are greatly desired to develop low-cost and low-energy-consumption organic light-emitting diodes (s-OLEDs). A recently developed class of potentially metal-free emitters, thermally activated delayed fluorescence (TADF) materials, are promising candidates, but solution-processable TADF materials are not well investigated. In this study, TADF molecules with or without HHPI unit were synthesized, named PTC-HDA and PTCP, respectively. All of them show TADF properties. The introduction of HHPI significantly enhanced thermo-stability and luminescence property with high photoluminescence quantum yield (<em>Φ</em>_PLQY) from 18.7 % to 48.3 %. Glass transition temperature (<em>T</em>_g) and decomposition temperature (<em>T</em>5% d) increased from 135 °C and 477 °C to 177 °C and 586 °C. PTCP show obvious double emission at 452 nm and 561 nm, while the emission at 452 nm is disappeared for PTC-HDA. HHPI unit enhance the film-forming properties of PTC-HDA with roughness of 0.302 compared with roughness of 0.524 for PTCP, even after one week stay the same as before. In the application to OLEDs preparing through spin-coating process, the high external quantum efficiency (<em>η</em>max EQE) of 11.90 % and low efficiency roll-off (1.7 % at 100 lm cm⁻² and 18.8 % at 1000 lm cm⁻²) for PTC-HDA were achieved. Which is significantly improved due to HHPI unit compared with PTCP (<em>η</em>max EQE = 7.85 %, efficiency off 7.2 % at 100 lm cm⁻² and 23.3 % at 1000 lm cm⁻²). This work demonstrates the validity of HHPI substitution and paves a pathway for straightforward realization of solution-processable efficient TADF emitters.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116608"},"PeriodicalIF":4.1,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Linear relationship between carbonyl index of weathered microplastics with a CC backbone and solar light photodegradation kinetics of nicotine","authors":"Pietro Bonechi ,&nbsp;Irina Kandylioti ,&nbsp;Alessandra Cincinelli ,&nbsp;Ioana Alexandra Ionescu ,&nbsp;Elefteria Psillakis","doi":"10.1016/j.jphotochem.2025.116609","DOIUrl":"10.1016/j.jphotochem.2025.116609","url":null,"abstract":"<div><div>In this study, we argue that the Carbonyl Index (CI) values of weathered microplastics with carbon–carbon backbones can reliably predict their ability to enhance indirect photodegradation of organics under solar light, an effect that is independent of the type of polymer used. Polystyrene (PS), polypropylene (PP), and low-density polyethylene (LDPE) pellets were artificially weathered under UV-C, either in ambient air or submerged in water. Surface changes were characterized using ATR-FTIR spectroscopy, and the CI values were calculated. PS exhibited a much higher weathering rate than PP and LDPE, with air exposure being more effective than water for all plastic types. Nicotine (NIC) was used as the model organic compound. NIC photodegradation (10 mg L⁻¹) was monitored in the presence of each weathered pellet type (50 g L⁻¹) for 6 h under simulated sunlight at pH 11. The apparent pseudo-first-order rate constants, <em>k,</em> were 0.025 ± 0.015 h⁻¹ (air-weathered LDPE), 0.036 ± 0.002 h⁻¹ (water-weathered PP), 0.079 ± 0.029 h⁻¹ (air-weathered PP), 0.216 ± 0.014 h⁻¹ (water-weathered PS), and 0.346 ± 0.016 h⁻¹ (air-weathered PS). A linear correlation (R² = 0.956) was found between CI and k, indicating that photodegradation is primarily governed by the degree of aging rather than the polymer type. This relationship was further validated using naturally weathered PS and PP items collected from beaches, which aligned with the established CI–k correlation. These findings suggest that the CI is a practical indicator for predicting the environmental reactivity of weathered microplastics.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116609"},"PeriodicalIF":4.1,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance optimization of mechanically stacked c-Si solar cells TOPCon, HIT, PERC in tandem configurations under albedo varying light intensities","authors":"Rafi Ur Rahman ,&nbsp;Maha Nur Aida ,&nbsp;Jaljalalul Abedin Jony ,&nbsp;Muhammad Quddamah Khokhar ,&nbsp;Hasnain Yousuf ,&nbsp;Alamgeer ,&nbsp;Sangheon Park ,&nbsp;Shahzada Qamar Hussain ,&nbsp;Junsin Yi","doi":"10.1016/j.jphotochem.2025.116606","DOIUrl":"10.1016/j.jphotochem.2025.116606","url":null,"abstract":"<div><div>This research investigates the performance of Si/Si mechanically stacked solar cells using TOPCon technology in various configurations, specifically TOPCon/TOPCon, TOPCon/HIT, and TOPCon/PERC. The cells were tested under parallel and series across Albedo illumination (0.1 to 0.5 suns) to evaluate their efficiency and energy output. The key performance parameters measured include J_sc, V_oc, FF, and overall efficiency. In the parallel configuration, the TOPCon/TOPCon configuration exhibited the highest efficiency of 31.48 %, with a V_oc of 1.42 V, J_sc of 52.68 mA/cm², and FF of 81.43 %. The TOPCon/HIT parallel configuration demonstrated a strong performance, with an efficiency of 29.33 %, V_oc of 1.43 V, and J_sc of 49.34 mA/cm². The TOPCon/PERC parallel configuration showed the highest J_sc of 48.71 mA/cm², V_oc (1.43 V), and FF (79.53 %), resulting in an efficiency of 29.05 %. TOPCon/TOPCon series achieved a J_sc of 17.81 mA/cm² and an efficiency of 20.59 %. These results highlight the advantages of the TOPCon/TOPCon parallel configuration, which effectively leverages both voltage and current, making it the optimal configuration for maximizing energy output. The findings of this study offer valuable insights into optimizing solar cell performance, particularly for applications requiring efficient use of direct and reflected sunlight.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116606"},"PeriodicalIF":4.1,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bamboo-derived carbon supported plasmonic ag nanoparticles for visible-light-driven photocatalytic degradation of tetracycline","authors":"Fei Li,&nbsp;Xingyu Li,&nbsp;Xiliang Chen,&nbsp;Qinfang Li,&nbsp;Haian Xia","doi":"10.1016/j.jphotochem.2025.116602","DOIUrl":"10.1016/j.jphotochem.2025.116602","url":null,"abstract":"<div><div>A large number of antibiotics, such as tetracycline (TC), etc., are released into the aqueous system, which poses a great threat to human health and ecological balance. Nowadays, the adsorption method is still a commonly used method to remove the persistent pollutants. However, adsorption materials, such as hierarchical carbon materials, are prone to adsorption saturation, which is uneconomical and requires frequent regeneration. Herein, to address this issue, novel bamboo-derived carbon composite catalysts consisting of N-doped oxygen vacancy-rich TiO₂, and Ag nanoparticles (NPs) (Ag-N-TiO₂/BC) were prepared and used for the photocatalytic degradation of TC under visible light irradiation. 1 %Ag-N-TiO₂/BC(1) was found to have an excellent photocatalytic degradation of TC, with 77 % degradation after 180 min of visible light irradiation, and the kinetic study showed that the reaction rate constant was 0.00686 min⁻¹. The physicochemical and electrochemical properties of the catalysts were systematically characterized by XRD, TEM, XPS, and EIS, etc. Importantly, it is revealed that the introduction of Ag NPs with SPR effect and the presence of oxygen vacancies of N-TiO₂ provide a long-term degradation activity of TC, thus avoiding the frequent regeneration of bamboo charcoal (BC). The reaction mechanism study showed that h⁺ plays a dominant role in the degradation of TC. After four cycles of tests, the degradation rate of TC by this composite catalyst could still reach 69 %, demonstrating its good stability and reusability in the cycling experiment. This study provides a new method for the high-value utilization of BC to fabricate the composite photocatalysts for the long-term and economic removal of antibiotics.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116602"},"PeriodicalIF":4.1,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}