Applied Surface Science最新文献_第9页

CO2 photoreduction to CO with near-100% selectivity by oxygen vacancy-modified ferroelectric La2Ti2O7 氧空位修饰的铁电La2Ti2O7以接近100%的选择性光还原CO2为CO

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-01-31 DOI: 10.1016/j.apsusc.2026.166119

Li Lv , Jing Yu , Jing-zhou Wang , Yue Zhang , Yi Zhang , Bin-lin Shi , Jian-Ping Zhou

{"title":"CO2 photoreduction to CO with near-100% selectivity by oxygen vacancy-modified ferroelectric La2Ti2O7","authors":"Li Lv , Jing Yu , Jing-zhou Wang , Yue Zhang , Yi Zhang , Bin-lin Shi , Jian-Ping Zhou","doi":"10.1016/j.apsusc.2026.166119","DOIUrl":"10.1016/j.apsusc.2026.166119","url":null,"abstract":"<div><div>Herein, we introduced oxygen vacancies into the ferroelectric lanthanum titanate La2Ti2O7 via high-temperature treatment with NaBH4. These defects at different lattice positions induce multiple physical effects to improve the photocatalytic performance, such as introducing middle energy bands to enhance the visible-light absorption, trapping charge carriers to suppress the electron-hole recombination, and inspiring localized plasmon resonance as electron-rich quantum dots under light illumination. First-principles calculations well explained the multifunctionality of oxygen vacancy. Notably, one of the oxygen-deficient La2Ti2O7 samples converts CO2 almost completely to CO with a high CO production rate of 128 μmol·g−1·h−1, presenting excellent photocatalytic ability. The polarized La2Ti2O7 reinforces the built-in electric field, further improving the charge separation to degrade CO2 with a superior CO yield of 162.3 μmol·g−1·h−1 and still maintaining excellent selectivity. First-principles calculations revealed that the CO selectivity is primarily attributed to the much lower adsorption energy of CO on La2Ti2O7 surface. This work establishes a defect engineering method for designing efficient photocatalysts, revealing the effects of oxygen vacancies for artificial photocatalytic CO2 reduction.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166119"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146089889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pyrolysis-tuned apple branch-derived carbon catalysts for persulfate activation: dominance of 1O2 non-radical pathways 热解调节过硫酸盐活化的苹果枝衍生碳催化剂：1O2非自由基途径的优势

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-01-29 DOI: 10.1016/j.apsusc.2026.166111

Lang Li , Nan Chen , Ning An , Hantian Mou , Chuanping Feng , Jianhua Wu , Lina Zhao , Junjie Li , Zejun Zhang , Donglin Wang , Yong Mao

{"title":"Pyrolysis-tuned apple branch-derived carbon catalysts for persulfate activation: dominance of 1O2 non-radical pathways","authors":"Lang Li , Nan Chen , Ning An , Hantian Mou , Chuanping Feng , Jianhua Wu , Lina Zhao , Junjie Li , Zejun Zhang , Donglin Wang , Yong Mao","doi":"10.1016/j.apsusc.2026.166111","DOIUrl":"10.1016/j.apsusc.2026.166111","url":null,"abstract":"<div><div>Tetracycline (TC), a pervasive antibiotic contaminant in aquatic systems, presents critical ecological and human health threats. This study pioneers a sustainable remediation strategy by fabricating a metal-free biochar catalyst (PAC) from waste apple tree branches for persulfate (PDS) activation toward TC degradation. Among PACs pyrolyzed at 500–700°C, PAC-700 demonstrated exceptional catalytic activity, attributable to its maximized defect density and enriched surface carbonyl groups. Strong linear correlations between the rate constant (log(k)) and both ID/IG ratio (R2 = 0.823) and C<img>O content (R2 = 0.998) suggest their potential influence on PDS activation. Mechanistic investigations elucidated a dual radical/non-radical pathway: radical species (SO4<img>−, <img>OH, and O2<img>−) and non-radical processes (1O2, electron transfer), with 1O2 playing the dominant role to TC degradation. Crucially, C<img>O groups were identified as pivotal active sites for 1O2 generation (R2 = 0.866 between C<img>O and 1O2 contribution). Electrochemical analyses demonstrated that PAC materials prepared at higher pyrolysis temperatures exhibit enhanced electron transfer behavior, while LC-MS and Fukui index calculations mapped degradation pathways and reactive sites. Post-treatment toxicity assays validated significant ecological risk mitigation. This work advances green antibiotic remediation by synergizing biomass valorization with non-radical catalysis.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166111"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sodium dithionite regulated heterogeneous activation of peroxymonosulfate by modified vermiculite@Co2MnO4 to achieve efficient defluorination of PFOA 二亚硫酸钠通过改性vermiculite@Co2MnO4调控过氧单硫酸盐的非均相活化，实现PFOA的高效脱氟

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-02-03 DOI: 10.1016/j.apsusc.2026.166199

Meiyun Feng , Mingzhu Zhang , Keke Xu , Wenming Pei , Zhiqiang Xu , Cheng Gu , Meng Zhang , Feng Ge

{"title":"Sodium dithionite regulated heterogeneous activation of peroxymonosulfate by modified vermiculite@Co2MnO4 to achieve efficient defluorination of PFOA","authors":"Meiyun Feng , Mingzhu Zhang , Keke Xu , Wenming Pei , Zhiqiang Xu , Cheng Gu , Meng Zhang , Feng Ge","doi":"10.1016/j.apsusc.2026.166199","DOIUrl":"10.1016/j.apsusc.2026.166199","url":null,"abstract":"<div><div>A novel Peroxymonosulfate (PMS)-based advanced oxidation process (AOP) was developed for efficient degradation of perfluorooctanoic acid (PFOA). Co2MnO4 loaded on cetyltrimethylammonium bromide (CTAB)-modified vermiculite (C-VT@CM) was synthesized as the catalyst, and the reaction was regulated by sodium dithionite (DNT) to promote the generation of SO2•– and redox cycling of metal elements. C-VT@CM/PMS/DNT system achieved 99.4% PFOA degradation and 49.3% defluorination under optimal conditions, showing stability against common ions, low concentration of humic acid (5 mg L−1), and pH fluctuations (3.5–10.6). Electron paramagnetic resonance (EPR) and quenching experiments revealed that the degradation involved a synergistic effect of SO2•–, •OH, SO4•–, and electron transfer process (ETP), which was further confirmed by electrochemical, X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT) analyses. The mechanism indicated that DNT acted as an external electron donor, facilitating a dual electron transfer pathway via C-VT@CM to both PMS and PFOA, generating reactive species (SO2•–, •OH, SO4•–) that attacked PFOA, leading to successful defluorination. This work provided a new strategy and theoretical basis for the remediation of wastewater containing PFOA.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166199"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Uncooled mid-infrared lead salt photodetectors prepared by physical vapor deposition: revealing the generation and evolution mechanisms of photosensitization 物理气相沉积制备的非冷却中红外铅盐光电探测器：揭示光敏化的产生和演化机制

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-02-03 DOI: 10.1016/j.apsusc.2026.166197

ShaoBo Ma , Feng Liu , Jianyuan Wang , Xuetao Gan , Hao Yang , Ting Mei , Jianbang Zheng , Jianlin Zhao

{"title":"Uncooled mid-infrared lead salt photodetectors prepared by physical vapor deposition: revealing the generation and evolution mechanisms of photosensitization","authors":"ShaoBo Ma , Feng Liu , Jianyuan Wang , Xuetao Gan , Hao Yang , Ting Mei , Jianbang Zheng , Jianlin Zhao","doi":"10.1016/j.apsusc.2026.166197","DOIUrl":"10.1016/j.apsusc.2026.166197","url":null,"abstract":"<div><div>Uncooled mid-wave infrared photodetectors feature room-temperature operation, high performance, low power consumption, and small size (meeting SWaP3 standards), making them promising candidates for next-generation infrared detectors. Although there have been numerous reports in recent years on the study of their photo-sensitization mechanisms, a complete understanding of the photo-sensitization process has yet to be established. Here, a temporal mapping of the photo-sensitization process of uncooled PbSe photodetectors is constructed, revealing the evolution mechanism of photo-sensitization and uncovering the transition from a porous grain structure to a core–shell structure. Photosensitization occurs within the range of 11 min < t < 52 min, with the optimal sensitization time being approximately t = 40 min. The mechanism for enhanced photosensitivity is attributed to the formation of pn junction core–shell structures in the grains, which facilitate the separation of photogenerated carriers. The decrease in free carrier concentration caused by sensitization is responsible for the increase in total noise voltage. Density functional theory calculations indicate that iodination and oxidation introduce deep acceptor levels at −0.273 eV below the Fermi level, which can extend carrier lifetime through trap effects. This work provides new insights into the device physics of uncooled mid-wave infrared photodetectors.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166197"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Internal surface decontamination of metal pipes using in situ flexible atmospheric pressure plasma cleaning 金属管道内表面的原位柔性常压等离子体净化

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-02-03 DOI: 10.1016/j.apsusc.2026.166188

Tao Wang, Xin Wang, Peng Zhang, Zhijie Kuai, Meng Li, Liping Shi, Sixian Rao

{"title":"Internal surface decontamination of metal pipes using in situ flexible atmospheric pressure plasma cleaning","authors":"Tao Wang, Xin Wang, Peng Zhang, Zhijie Kuai, Meng Li, Liping Shi, Sixian Rao","doi":"10.1016/j.apsusc.2026.166188","DOIUrl":"10.1016/j.apsusc.2026.166188","url":null,"abstract":"<div><div>The inner surface contamination of metal pipes significantly compromises the operational efficiency and safety of fluid transport systems. This study explores the application of a flexible right-angle atmospheric pressure plasma jet for in situ decontamination of the internal surfaces of aluminum (Al) and copper (Cu) pipes. Contamination was simulated using dimethyl silicone oil, and cleaning effectiveness was evaluated through water contact angle (WCA) measurements, metallographic microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Numerical simulation and experimental results demonstrated that parameters including excitation voltage, gas flow rate, treatment time, nozzle distance, and scanning speed significantly influenced cleaning performance. Under the optimal cleaning conditions, the WCAs of contaminated metal pipe inner surfaces decreased, indicating a significant transition from hydrophobic (WCAs ∼ 100° and ∼ 95°) to hydrophilic (WCAs ∼ 20° and ∼ 17°). Both static and dynamic treatment modes effectively removed silicone oil residues and reduced surface silicon content. The cleaning mechanism involves a combination of physical effects and chemical reactions. This study validates the feasibility of flexible atmospheric pressure plasma jet technology for inner surface cleaning of metal pipes, providing a green, efficient, and adaptable alternative to traditional cleaning methods and expanding the application scope of plasma technology in internal pipe surface cleaning.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166188"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering embedded Co2+ via crystal reconstruction as an anti-coking and highly selective site for sustainable propane dehydrogenation 工程通过晶体重建嵌入Co2+作为抗结焦和可持续丙烷脱氢的高选择性位点

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-02-02 DOI: 10.1016/j.apsusc.2026.166169

Shuanghui Lu, Xuejiao Chen, Haoran Sun, Yantao Xue, Junji Li, Zhenxiang Zhao, Sifei Li, Yuyang Han, Li Wang, Pingping Wu, Chunzheng Wang, Hailing Guo, Peng Bai, Zifeng Yan

{"title":"Engineering embedded Co2+ via crystal reconstruction as an anti-coking and highly selective site for sustainable propane dehydrogenation","authors":"Shuanghui Lu, Xuejiao Chen, Haoran Sun, Yantao Xue, Junji Li, Zhenxiang Zhao, Sifei Li, Yuyang Han, Li Wang, Pingping Wu, Chunzheng Wang, Hailing Guo, Peng Bai, Zifeng Yan","doi":"10.1016/j.apsusc.2026.166169","DOIUrl":"10.1016/j.apsusc.2026.166169","url":null,"abstract":"<div><div>Co-based catalysts have shown promising application prospects in propane dehydrogenation (PDH) due to their excellent C–H bond activation ability and environmental friendliness. However, issues such as unclear active sites and insufficient stability during the reaction process limit the application. In this work, a Co2+ embedding strategy was proposed to suppress carbon deposition, thereby achieving high propylene selectivity and long-term stability. Utilizing the “memory effect” of ammonium aluminum carbonate hydroxide (AACH), cobalt species are embedded into the lattice during the crystal reconstruction of AACH, successfully achieving a Co2+-embedded Co/Al-0.1 catalyst. By systematically adjusting the Co/Al molar ratio (0.05–0.6), rational regulation of Co2+ content is achieved. The Co/Al-0.1 with stably embedded Co2+ maintains propylene selectivity of above 90%, with a coking rate of 1.32 h−1, one third that of Co/Al2O3-IMP prepared by impregnation. Correspondingly, Co/Al-0.1 exhibits a high long-term stability with a deactivation rate constant kd of 0.0075 h−1, less than one fifth that of Co/Al2O3-IMP (kd = 0.0406 h−1). In situ propylene adsorption–desorption infrared spectroscopy and theoretical calculations indicate that propylene easily desorbed from the stable embedded Co2+, thereby inhibiting deep dehydrogenation of propylene and C–C bond cleavage, which enhances propylene selectivity and anti-coking performance.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166169"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial microenvironment engineering triggered by rapid silicon doping for promoted methanol electrooxidation 快速硅掺杂促进甲醇电氧化引发的界面微环境工程

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-02-09 DOI: 10.1016/j.apsusc.2026.166279

Jingwen Pu , Baohong Xie , Yaxin Sun , Qian Yang , Jing Xie , Pei Chen , Gang Wang , Feng Yu

{"title":"Interfacial microenvironment engineering triggered by rapid silicon doping for promoted methanol electrooxidation","authors":"Jingwen Pu , Baohong Xie , Yaxin Sun , Qian Yang , Jing Xie , Pei Chen , Gang Wang , Feng Yu","doi":"10.1016/j.apsusc.2026.166279","DOIUrl":"10.1016/j.apsusc.2026.166279","url":null,"abstract":"<div><div>The electrocatalytic methanol oxidation reaction (MOR) faces challenges, such as low OH– concentration at the catalyst interface, along with the poisoning of active sites by competitively adsorbed water molecules. Although heteroatom doping is an established strategy to enhance MOR activity, conventional methods primarily focus on electronic structure modulation and often involve complex synthesis. Here, we report an ultrafast silicon doping strategy, via a mere 20-second room-temperature immersion, to construct Co-O-Si bonds in Co(OH)2 on nickel foam (Si-Co(OH)2/NF). This technique enables the synergistic regulation of both the electronic structure and, more critically, the local interfacial microenvironment. The introduced Co-O-Si bonds induce lattice strain and generate oxygen vacancies, promoting electron transfer. In situ ATR-SEIRAS studies provide direct evidence that silicon doping establishes a hydrophobic interfacial microenvironment, which effectively mitigates water poisoning and facilitates OH– transport to active sites. Consequently, the Si-Co(OH)2/NF catalyst exhibits superior MOR activity, achieving 100 mA cm−2 at 1.41 V vs. RHE, significantly lower than the 1.56 V required for the Co(OH)2/NF, while maintaining high formate selectivity. This work highlights the crucial yet often overlooked role of microenvironment engineering in doping strategies and presents an exceptionally facile and efficient pathway for advanced catalyst design.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166279"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser-induced growth of TiO2 coatings on conductive Magnéli-phase ceramics prepared under vacuum using a Glycerol–Citrate polyester precursor 用甘油-柠檬酸酯聚酯前驱体在真空条件下制备的导电magnsamli相陶瓷上激光诱导生长TiO2涂层

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-02-09 DOI: 10.1016/j.apsusc.2026.166257

Alexander N. Bondarchuk , Iván Corrales-Mendoza , Ulises M. García-Pérez , Luis Á. Arellanes-Mendoza , Sergio A. Tomás

{"title":"Laser-induced growth of TiO2 coatings on conductive Magnéli-phase ceramics prepared under vacuum using a Glycerol–Citrate polyester precursor","authors":"Alexander N. Bondarchuk , Iván Corrales-Mendoza , Ulises M. García-Pérez , Luis Á. Arellanes-Mendoza , Sergio A. Tomás","doi":"10.1016/j.apsusc.2026.166257","DOIUrl":"10.1016/j.apsusc.2026.166257","url":null,"abstract":"<div><div>Magnéli-phase ceramics (MC), which combine high electrical conductivity and structural stability, are promising materials for electrodes in electrochemical devices. In this work, titanium dioxide (TiO2) films were formed by laser irradiation in air on porous MC substrates for photoelectrode applications. The formation of TiO2 on the laser-treated surfaces was confirmed by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). XPS analysis further revealed reduced titanium species (Ti3+/Ti2+) in the subsurface regions of both treated and untreated ceramics, indicating intrinsic chemical heterogeneity. The laser-fabricated structures, evaluated as photoelectrodes in a photoelectrochemical cell, exhibited photocurrent densities of 0.16 mA cm−2 under blue LED illumination (455 nm) and 43 μA cm−2 under AM 1.5G irradiation, both measured at 1.23 V vs. RHE. The MC substrates, synthesized under vacuum (21 kPa) at 1000–1350 °C from TiO2 mixed with the polymer Glycix, simultaneously acted as a carbon source, foaming agent, and binder. This study reveals that laser-induced TiO2 formation on Magnéli-phase ceramics offers a promising strategy for designing stable and conductive photoelectrodes.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166257"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced photoelectrocatalytic activity over carbon-coated TiO2/CdS ternary photoanodes for glycerol oxidation and synergistic hydrogen evolution 碳包覆TiO2/CdS三元光阳极对甘油氧化和协同析氢的光电催化活性增强

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-02-03 DOI: 10.1016/j.apsusc.2026.166164

Jiayu Lin , Chenfeng Jiang , Yi Sun , Wei Zhou , Xiaoyan Zhang , Weimin Cao , Danhong Cheng

{"title":"Enhanced photoelectrocatalytic activity over carbon-coated TiO2/CdS ternary photoanodes for glycerol oxidation and synergistic hydrogen evolution","authors":"Jiayu Lin , Chenfeng Jiang , Yi Sun , Wei Zhou , Xiaoyan Zhang , Weimin Cao , Danhong Cheng","doi":"10.1016/j.apsusc.2026.166164","DOIUrl":"10.1016/j.apsusc.2026.166164","url":null,"abstract":"<div><div>Photoelectrocatalytic (PEC) glycerol oxidation coupled with hydrogen evolution offers a sustainable and green approach to energy utilization. However, severe charge recombination and sluggish charge transfer kinetics have hindered its practical adoption. In this work, a mild hydrothermal method was adopted to grow two-dimensional (2D) CdS nanosheets over one-dimensional (1D) TiO2 nanorod arrays to construct type-Ⅱ heterojunction TiO2/CdS. Then, an ultrathin carbon layer was introduced to enhance the electrode’s stability. The optimized TiO2/CdS/C photoanode achieves a glycerol oxidation current density of 19.6 mA·cm−2 at 0.9 V vs RHE, representing a ∼4.2% increase compared to TiO2/CdS (18.8 mA·cm−2), exhibiting superior performance over pristine TiO2. Simultaneously, it demonstrates superb durability with 76.4% performance retention after an 18-hour PEC glycerol oxidation assay versus 39.2% for TiO2/CdS. As a result, the hydrogen evolution rate is significantly enhanced to 2133.8 mmol·m−2·h−1 within 2 h, far exceeding that of bare TiO2 (317.4 mmol·m−2·h−1) and TiO2/CdS (1228.4 mmol·m−2·h−1). The glycerol conversion achieves a high formic acid production rate of 459.5 mmol·m−2·h−1. This study offers a novel approach for developing high-performance photoanode systems, facilitating the integration of renewable energy conversion and high-value chemical synthesis.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166164"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial engineering for enhanced peroxymonosulfate activation of Co nanoparticles/nitrogen-doped carbon microreactor on the carbon felt 碳毡上Co纳米颗粒/氮掺杂碳微反应器增强过氧单硫酸盐活化的界面工程

IF 6.9 2区材料科学

Applied Surface Science Pub Date : 2026-05-30 Epub Date: 2026-02-01 DOI: 10.1016/j.apsusc.2026.166150

Yue Wang , Tinglin Ma , Yiding Yan , Liying Sun , Jinming Ma , Xin Li , Ji Qi , Xuefei Li , Jinghai Yang

{"title":"Interfacial engineering for enhanced peroxymonosulfate activation of Co nanoparticles/nitrogen-doped carbon microreactor on the carbon felt","authors":"Yue Wang , Tinglin Ma , Yiding Yan , Liying Sun , Jinming Ma , Xin Li , Ji Qi , Xuefei Li , Jinghai Yang","doi":"10.1016/j.apsusc.2026.166150","DOIUrl":"10.1016/j.apsusc.2026.166150","url":null,"abstract":"<div><div>Constructing a catalytic filtration system for peroxymonosulfate (PMS) activation represents an efficient strategy for the treatment of wastewater contaminated with organic pollutants. In this work, porous microreactor featuring metal Co nanoparticles/nitrogen-doped carbon (NC) interfaces are constructed via thermal conversion on the surface of carbon felt (CF). The construction of the Co/NC interface and the full exploitation of active sites on the porous microreactor (Co/NC/CF-3), 95.62% of phenol (20 mg/L) was removed within 30 min via PMS activation. The direction of electron transfer at the Co/NC interface has been confirmed through electrochemical tests and density functional theory calculations. The study further elucidated the promoting effect of Co/NC interface construction on the activation of the PMS reaction process. Reactive oxygen species were systematically investigated through experimental analysis and EPR characterization. Meanwhile, the mechanism of PMS activation was analyzed. The utilization of Co/NC/CF-3 in constructing a continuous flow device facilitates the stable and efficient removal of phenol. This study provides novel insights into enhancing the integrated application of microreactor for PMS activation in wastewater purification.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"729 ","pages":"Article 166150"},"PeriodicalIF":6.9,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0