Surfaces and Interfaces最新文献

英文中文

Amine-enriched polymeric organic frameworks for enhanced energy harvesting and self-powered pH sensing performance

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-25 DOI: 10.1016/j.surfin.2025.106112

Jagannath Panda , Sugato Hajra , Swati Panda , Young Je Kwon , Kushal Ruthvik Kaja , Ho Jin Jung , Gyeong Min Choi , Hoe Joon Kim , Kie Yong Cho

Measuring pH is crucial across various domains, including environmental science, healthcare, and food packaging. While conventional pH sensors are highly sensitive, they are often limited by challenges such as limited battery life and slower response rates. An innovative solution lies in triboelectric nanogenerator (TENG) technology, which offers a sustainable, battery-free approach to pH detection. By harnessing mechanical energy and converting it into electrical energy, TENGs enable the development of self-powered sensors suitable for environmental applications. In this context, A nitrogen-rich polymer organic framework (POF) was synthesized based on porphine using pyrrole and tested its effectiveness in a TENG. The POF particles are used as the positive triboelectric layer and FEP as the negative triboelectric layer in the TENG fabrication process. The resulting POF-based TENG could generate 70 V voltage, 1.2 µA of current, and 5 µW of power. We also demonstrated that the TENG could charge capacitors and power LEDs. The study explored the operational mechanism of the TENG in harsh environmental conditions and how the POF material detects pH changes, confirming its efficiency in pH sensing. The research highlights the synthesis of the POF material, its use as a triboelectric layer, the fabrication process of the TENG, and its performance in energy harvesting and self-powered applications.

{"title":"Amine-enriched polymeric organic frameworks for enhanced energy harvesting and self-powered pH sensing performance","authors":"Jagannath Panda , Sugato Hajra , Swati Panda , Young Je Kwon , Kushal Ruthvik Kaja , Ho Jin Jung , Gyeong Min Choi , Hoe Joon Kim , Kie Yong Cho","doi":"10.1016/j.surfin.2025.106112","DOIUrl":"10.1016/j.surfin.2025.106112","url":null,"abstract":"<div><div>Measuring pH is crucial across various domains, including environmental science, healthcare, and food packaging. While conventional pH sensors are highly sensitive, they are often limited by challenges such as limited battery life and slower response rates. An innovative solution lies in triboelectric nanogenerator (TENG) technology, which offers a sustainable, battery-free approach to pH detection. By harnessing mechanical energy and converting it into electrical energy, TENGs enable the development of self-powered sensors suitable for environmental applications. In this context, A nitrogen-rich polymer organic framework (POF) was synthesized based on porphine using pyrrole and tested its effectiveness in a TENG. The POF particles are used as the positive triboelectric layer and FEP as the negative triboelectric layer in the TENG fabrication process. The resulting POF-based TENG could generate 70 V voltage, 1.2 µA of current, and 5 µW of power. We also demonstrated that the TENG could charge capacitors and power LEDs. The study explored the operational mechanism of the TENG in harsh environmental conditions and how the POF material detects pH changes, confirming its efficiency in pH sensing. The research highlights the synthesis of the POF material, its use as a triboelectric layer, the fabrication process of the TENG, and its performance in energy harvesting and self-powered applications.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106112"},"PeriodicalIF":5.7,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520921","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

Mono-sized Al–Si alloy particles with identical thermal history for energy storage application fabricated via the pulsated orifice ejection method

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-25 DOI: 10.1016/j.surfin.2025.106117

Yunxiu Lian, Wei Dong, Fumin Xu

Metallic phase-change materials (PCMs) offer significant benefits, including a latent heat of phase change and dense heat storage capacity, and have broad application prospects in recovery and utilization of various high-temperature industrial waste heats. However, the application of metallic PCMs is considerably restricted due to leakage and corrosion issues during high-temperature phase transition. In this study, high-quality mono-sized Al–Si particles with excellent spherical shapes and narrow size distributions were prepared by pulsated orifice ejection method (POEM) in different cooling gas atmospheres. After high-temperature thermal oxidation, an Al₂O₃ shell layer formed around the particles, enabling the self-encapsulation of the metallic core. The results showed that the particles prepared in argon and helium gas exhibited thermal energy storage densities of 403.81 J/g and 429.02 J/g, respectively, while their thermal energy release densities were 408.57 J/g and 428.19 J/g. After 100 thermal cycles, the Al₂O₃ shell proved effective in preserving the core-shell structure, demonstrating excellent thermal stability and oxidation resistance throughout the thermal cycling process.

{"title":"Mono-sized Al–Si alloy particles with identical thermal history for energy storage application fabricated via the pulsated orifice ejection method","authors":"Yunxiu Lian, Wei Dong, Fumin Xu","doi":"10.1016/j.surfin.2025.106117","DOIUrl":"10.1016/j.surfin.2025.106117","url":null,"abstract":"<div><div>Metallic phase-change materials (PCMs) offer significant benefits, including a latent heat of phase change and dense heat storage capacity, and have broad application prospects in recovery and utilization of various high-temperature industrial waste heats. However, the application of metallic PCMs is considerably restricted due to leakage and corrosion issues during high-temperature phase transition. In this study, high-quality mono-sized Al–Si particles with excellent spherical shapes and narrow size distributions were prepared by pulsated orifice ejection method (POEM) in different cooling gas atmospheres. After high-temperature thermal oxidation, an Al<sub>2</sub>O<sub>3</sub> shell layer formed around the particles, enabling the self-encapsulation of the metallic core. The results showed that the particles prepared in argon and helium gas exhibited thermal energy storage densities of 403.81 J/g and 429.02 J/g, respectively, while their thermal energy release densities were 408.57 J/g and 428.19 J/g. After 100 thermal cycles, the Al<sub>2</sub>O<sub>3</sub> shell proved effective in preserving the core-shell structure, demonstrating excellent thermal stability and oxidation resistance throughout the thermal cycling process.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106117"},"PeriodicalIF":5.7,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511671","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

Chiral cocrystals with circularly polarized persistent phosphorescence and large second harmonic generation

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-25 DOI: 10.1016/j.surfin.2025.106114

Yong-Bo Peng , Guo-Xing Zhou , Rong-Yan Zhang , Lei Wang , Ying-Zhao Ma , Guo Peng , Xiao-Ming Ren

Despite cocrystal strategy is an effective method for preparing room-temperature phosphorescence (RTP) materials, chiral cocrystals with high phosphorescent quantum yields and large asymmetry factors are still limited. Herein, three pairs of chiral cocrystals, namely R/S-IPA, R/S-TPA and R/S-PMA, were prepared by the assembly of IPA / TPA / PMA (IPA = isophthalic acid, TPA = terephthalic acid, PMA = pyromellitic acid) with R/S-THNA (R/S-THNA = R/S-1,2,3,4-tetrahydro-1-naphthylamine). All the cocrystals crystallize in the chiral space group and the IPA / TPA / PMA and THNA molecules are connected to each other by hydrogen bonds and π···π or / and CH···π interactions. Their chiral nature was further confirmed by second harmonic generation (SHG) measurements and R/S-IPA show strong SHG response of about 1.91 / 1.88 times that of KDP. All the compounds exhibit afterglow when the UV lamp was turned off and their lifetimes vary from 479.5 ms to 36.1 ms. The phosphorescent quantum yield of R-PMA is up to 30.5 %, which is higher than that of most cocrystals with RTP. Both circularly polarized luminescence (CPL) and circularly polarized phosphorescence (CPP) were observed in the CPL spectra of all the compounds and their luminescence asymmetry factors (g_lum) reach the order of 10^–2. Based on the different afterglow lifetimes of these products, anticounterfeiting and information encryption were realized. Transparent thin films of the cocrystals were prepared by blending them with polyvinyl alcohol (PVA) and their flexibility and workability were assessed by processing them into different shapes.

{"title":"Chiral cocrystals with circularly polarized persistent phosphorescence and large second harmonic generation","authors":"Yong-Bo Peng , Guo-Xing Zhou , Rong-Yan Zhang , Lei Wang , Ying-Zhao Ma , Guo Peng , Xiao-Ming Ren","doi":"10.1016/j.surfin.2025.106114","DOIUrl":"10.1016/j.surfin.2025.106114","url":null,"abstract":"<div><div>Despite cocrystal strategy is an effective method for preparing room-temperature phosphorescence (RTP) materials, chiral cocrystals with high phosphorescent quantum yields and large asymmetry factors are still limited. Herein, three pairs of chiral cocrystals, namely <strong>R/S-IPA, R/S-TPA</strong> and <strong>R/S-PMA</strong>, were prepared by the assembly of IPA / TPA / PMA (IPA = isophthalic acid, TPA = terephthalic acid, PMA = pyromellitic acid) with R/S-THNA (R/S-THNA = <em>R</em>/S-1,2,3,4-tetrahydro-1-naphthylamine). All the cocrystals crystallize in the chiral space group and the IPA / TPA / PMA and THNA molecules are connected to each other by hydrogen bonds and π···π or / and C<img>H···π interactions. Their chiral nature was further confirmed by second harmonic generation (SHG) measurements and <strong>R/S-IPA</strong> show strong SHG response of about 1.91 / 1.88 times that of KDP. All the compounds exhibit afterglow when the UV lamp was turned off and their lifetimes vary from 479.5 ms to 36.1 ms. The phosphorescent quantum yield of <strong>R-PMA</strong> is up to 30.5 %, which is higher than that of most cocrystals with RTP. Both circularly polarized luminescence (CPL) and circularly polarized phosphorescence (CPP) were observed in the CPL spectra of all the compounds and their luminescence asymmetry factors (g<sub>lum</sub>) reach the order of 10<sup>–2</sup>. Based on the different afterglow lifetimes of these products, anticounterfeiting and information encryption were realized. Transparent thin films of the cocrystals were prepared by blending them with polyvinyl alcohol (PVA) and their flexibility and workability were assessed by processing them into different shapes.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106114"},"PeriodicalIF":5.7,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520934","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

Upcycling ambient particulate matter pollutants into high-performance carbon nanomaterials for electrochemical energy storage and oxygen evolution catalysis

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-25 DOI: 10.1016/j.surfin.2025.106116

Nazrul Islam , Debashree Bora , Mousumi Bora , Debashis Sarmah , Binud Attry , Biswajit Saha , Tarun Gupta , Binoy K Saikia

The atmospheric aerosol consisting of particulate matter (i.e., PM_2.5 and PM₁₀) contain a substantial amount of carbon. In this innovative study, we present an oxidative chemical process for harnessing advanced carbon nanomaterials (nanodiamonds and carbon nanotubes) from PM₁₀ samples. The obtained nanodiamonds (NDs) and carbon nanotubes (CNTs) were examined using various chemical and advanced analytical techniques, including high-resolution electron microscopy. The NDs were unagglomerated and consistently dispersed, containing both crystalline and amorphous carbon. Additionally, short rod like clustered carbon particles with hollow or cylindrical morphologies, as well as aggregates with hollow-structured multiwalled CNTs, were observed. The synthesized NDs were smaller than 5 nm and exhibited bright blue fluorescence with excitation dependence. Furthermore, the PM₁₀-derived NDs and CNTs showed potential as electrolytes for electrochemical energy storage systems and as promising catalysts for the oxygen evolution reaction when compared with standards. Reusing these air pollutants helps to create valuable resources that may be utilized in various applications, reducing environmental impact and supporting the principles of environmental stewardship and the circular economy.

{"title":"Upcycling ambient particulate matter pollutants into high-performance carbon nanomaterials for electrochemical energy storage and oxygen evolution catalysis","authors":"Nazrul Islam , Debashree Bora , Mousumi Bora , Debashis Sarmah , Binud Attry , Biswajit Saha , Tarun Gupta , Binoy K Saikia","doi":"10.1016/j.surfin.2025.106116","DOIUrl":"10.1016/j.surfin.2025.106116","url":null,"abstract":"<div><div>The atmospheric aerosol consisting of particulate matter (i.e., PM<sub>2.5</sub> and PM<sub>10</sub>) contain a substantial amount of carbon. In this innovative study, we present an oxidative chemical process for harnessing advanced carbon nanomaterials (nanodiamonds and carbon nanotubes) from PM<sub>10</sub> samples. The obtained nanodiamonds (NDs) and carbon nanotubes (CNTs) were examined using various chemical and advanced analytical techniques, including high-resolution electron microscopy. The NDs were unagglomerated and consistently dispersed, containing both crystalline and amorphous carbon. Additionally, short rod like clustered carbon particles with hollow or cylindrical morphologies, as well as aggregates with hollow-structured multiwalled CNTs, were observed. The synthesized NDs were smaller than 5 nm and exhibited bright blue fluorescence with excitation dependence. Furthermore, the PM<sub>10</sub>-derived NDs and CNTs showed potential as electrolytes for electrochemical energy storage systems and as promising catalysts for the oxygen evolution reaction when compared with standards. Reusing these air pollutants helps to create valuable resources that may be utilized in various applications, reducing environmental impact and supporting the principles of environmental stewardship and the circular economy.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106116"},"PeriodicalIF":5.7,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535395","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

Effects of laser energy density on microstructure, texture and tribological property of CoCrFeMnNi high entropy alloy coatings fabricated by laser cladding

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-25 DOI: 10.1016/j.surfin.2025.106107

Chenchen Ding , Yu Liu , Hongjun Ni , Xiao Wang , Hui Wang

Single-phase CoCrFeMnNi high entropy alloy (HEA) coatings were prepared using laser cladding methods, with different energy densities achieved by adjusting the laser power to 3200 W, 3500 W, and 3800 W. Microstructural analysis revealed that all coatings can be categorized into three distinct regions, where the temperature gradient, direction of heat flow and the preferred orientations of grains determined the grain morphology. Mechanical tests demonstrated that the coating exhibited the lowest hardness (160 ∼ 200 HV) and the best wear resistance when the laser power was set to 3500 W, attributed to the intrinsic properties of CoCrFeMnNi and the presence of oxidative wear. The predominant wear mechanism of LP3500 shifted from abrasive wear to adhesive wear as the loads increased from 15 to 45 N.

引用次数: 0

Long-term stability of electrical and electrochemical properties of TiN film in the atmosphere environment

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-25 DOI: 10.1016/j.surfin.2025.106111

Mengxiao Wang , Shuyan Shi , Jin Xu , Yunpeng Su , Jiaye Gu , Nana Sun , Wenjin Zhao , Dayu Zhou

Golden-yellow, dense, and highly conductive TiN films are widely used as gate electrodes and diffusion barrier layers in microelectronics. Dark color and porous TiN films are used as electrode material for on-chip micro-supercapacitors (MSCs) and nano-pore gene sequencing chips owing to their high specific capacitance. However, oxidation can lead to varying degrees of degradation in electrical and electrochemical performance, which poses long-term stability issues. To date, experimental studies on the oxidation and performance degradation of TiN films over time remain limited. This study tested the electrical conductivity, stress levels, energy storage characteristics, and room temperature oxidation performance of the newly deposited TiN film. The results indicate that the electrical conductivity and specific capacitance of TiN films can be finely tuned by controlling the working pressure. Subsequently, the electrical and electrochemical performance of the films was periodically monitored over three months, with examinations of changes in chemical composition and internal stress. The results reveal a clear pore size-related, time-dependent oxidation and performance degradation behavior, which is crucial for assessing the stability of TiN electrode films in various device applications.

{"title":"Long-term stability of electrical and electrochemical properties of TiN film in the atmosphere environment","authors":"Mengxiao Wang , Shuyan Shi , Jin Xu , Yunpeng Su , Jiaye Gu , Nana Sun , Wenjin Zhao , Dayu Zhou","doi":"10.1016/j.surfin.2025.106111","DOIUrl":"10.1016/j.surfin.2025.106111","url":null,"abstract":"<div><div>Golden-yellow, dense, and highly conductive TiN films are widely used as gate electrodes and diffusion barrier layers in microelectronics. Dark color and porous TiN films are used as electrode material for on-chip micro-supercapacitors (MSCs) and nano-pore gene sequencing chips owing to their high specific capacitance. However, oxidation can lead to varying degrees of degradation in electrical and electrochemical performance, which poses long-term stability issues. To date, experimental studies on the oxidation and performance degradation of TiN films over time remain limited. This study tested the electrical conductivity, stress levels, energy storage characteristics, and room temperature oxidation performance of the newly deposited TiN film. The results indicate that the electrical conductivity and specific capacitance of TiN films can be finely tuned by controlling the working pressure. Subsequently, the electrical and electrochemical performance of the films was periodically monitored over three months, with examinations of changes in chemical composition and internal stress. The results reveal a clear pore size-related, time-dependent oxidation and performance degradation behavior, which is crucial for assessing the stability of TiN electrode films in various device applications.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106111"},"PeriodicalIF":5.7,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520935","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

Carbon aerogel and xerogel composites with polypyrrole as electrocatalysts for oxygen reduction reaction

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-24 DOI: 10.1016/j.surfin.2025.106071

Dušan Mladenović , Meryem Samancı , Diogo M.F. Santos , Ayşe Bayrakçeken , Biljana Šljukić

Due to their exceptional electrical conductivity and stability, carbon-based conductive polymer composites have attracted attention as non-platinum group metal (non-PGM) catalysts for the oxygen reduction reaction (ORR), a crucial reaction in electrochemical energy conversion. In this study, carbon aerogels (CA) and xerogels (CX, CXA) were first synthesized by sol-gel method under different drying conditions, including supercritical drying after solvent exchange of water with acetone (CA), drying under ambient conditions after solvent exchange of water with acetone (CXA), and drying directly under ambient conditions without solvent exchange of water with acetone (CX). Then, polypyrrole (PPy) composites were prepared by chemical polymerization over these carbon-based materials. Scanning and transmission electron microscopy with energy-dispersive X-ray spectroscopy and Raman spectroscopy were carried out on the synthesized CA, CXA, CX, and PPy composites. The electrochemical investigation of the synthesized materials reveals that they catalyze ORR mainly through two-electron reduction of molecular oxygen. The influence of the materials’ synthesis method, structure, and addition of PPy on their activity towards ORR was investigated. The best performance was observed for the CA2 catalyst, demonstrating the highest diffusion-limited current density, the lowest Tafel slope, the highest value of the half-wave potential, and the highest number of exchanged electrons. Furthermore, this material showed good stability during the long-term chronoamperometric study, making it a promising material for long-standing ORR catalysis.

{"title":"Carbon aerogel and xerogel composites with polypyrrole as electrocatalysts for oxygen reduction reaction","authors":"Dušan Mladenović , Meryem Samancı , Diogo M.F. Santos , Ayşe Bayrakçeken , Biljana Šljukić","doi":"10.1016/j.surfin.2025.106071","DOIUrl":"10.1016/j.surfin.2025.106071","url":null,"abstract":"<div><div>Due to their exceptional electrical conductivity and stability, carbon-based conductive polymer composites have attracted attention as non-platinum group metal (non-PGM) catalysts for the oxygen reduction reaction (ORR), a crucial reaction in electrochemical energy conversion. In this study, carbon aerogels (CA) and xerogels (CX, CXA) were first synthesized by sol-gel method under different drying conditions, including supercritical drying after solvent exchange of water with acetone (CA), drying under ambient conditions after solvent exchange of water with acetone (CXA), and drying directly under ambient conditions without solvent exchange of water with acetone (CX). Then, polypyrrole (PPy) composites were prepared by chemical polymerization over these carbon-based materials. Scanning and transmission electron microscopy with energy-dispersive X-ray spectroscopy and Raman spectroscopy were carried out on the synthesized CA, CXA, CX, and PPy composites. The electrochemical investigation of the synthesized materials reveals that they catalyze ORR mainly through two-electron reduction of molecular oxygen. The influence of the materials’ synthesis method, structure, and addition of PPy on their activity towards ORR was investigated. The best performance was observed for the CA2 catalyst, demonstrating the highest diffusion-limited current density, the lowest Tafel slope, the highest value of the half-wave potential, and the highest number of exchanged electrons. Furthermore, this material showed good stability during the long-term chronoamperometric study, making it a promising material for long-standing ORR catalysis.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"60 ","pages":"Article 106071"},"PeriodicalIF":5.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial charge transfer in LaCoO3/SnS2 heterostructure for boosted photodegradation of environmental organic pollutant

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-24 DOI: 10.1016/j.surfin.2025.106105

K. Sathiyamoorthy , A. Silambarasan , M. Navaneethan , S. Harish

Herein, we report an efficient multicomponent photocatalytic system prepared via ultrasonication of LaCoO₃ and SnS₂ in different weight percentages (X% = 2.5, 5, 7.5 10 and 12.5 % SnS₂) and employed for photodegradation of Alizarin Red S (ARS) and Rhodamine B (RhB) dyes. The synthesized catalysts were subjected to structural, optical, morphological, and electrochemical characterizations. The X-Ray diffraction patterns of LSn-X% (when, X ≤ 12.5 %) were indexed to rhombohedral LaCoO₃ without having any diffraction patterns of SnS₂. However, morphological studies and elemental analysis show the presence of fine dispersion of SnS₂ within the LSn-X% heterostructure. Detailed photocatalytic investigation portrays superior performance of LSn-10 % with a rate constant of 4.9 × 10^–2 min^-1 and 3.2 × 10^-2 min^-1 against ARS and RhB dyes, respectively. Further, the observations from optical and electrochemical studies help to figure out why LSn-10 % offered the best photocatalytic performance among the synthesized catalysts. Radical reveals that the superoxide and hydroxide radicals were found to be the key radicals responsible for photocatalytic degradation of ARS and RhB dyes were The CB and VB potential of LaCoO₃ is found to be 1.25 and -0.99 eV; for SnS₂ it is found to be 1.95 and 0.045 eV. Finally, considering all these observations a possible degradation mechanism was proposed. Overall, highly efficient visible light active photocatalysts were explored which may open the possibility of utilizing the photocatalyst for real-time degradation of environmental pollutants.

{"title":"Interfacial charge transfer in LaCoO3/SnS2 heterostructure for boosted photodegradation of environmental organic pollutant","authors":"K. Sathiyamoorthy , A. Silambarasan , M. Navaneethan , S. Harish","doi":"10.1016/j.surfin.2025.106105","DOIUrl":"10.1016/j.surfin.2025.106105","url":null,"abstract":"<div><div>Herein, we report an efficient multicomponent photocatalytic system prepared via ultrasonication of LaCoO<sub>3</sub> and SnS<sub>2</sub> in different weight percentages (X% = 2.5, 5, 7.5 10 and 12.5 % SnS<sub>2</sub>) and employed for photodegradation of Alizarin Red S (ARS) and Rhodamine B (RhB) dyes. The synthesized catalysts were subjected to structural, optical, morphological, and electrochemical characterizations. The X-Ray diffraction patterns of LSn-X% (when, X ≤ 12.5 %) were indexed to rhombohedral LaCoO<sub>3</sub> without having any diffraction patterns of SnS<sub>2</sub>. However, morphological studies and elemental analysis show the presence of fine dispersion of SnS<sub>2</sub> within the LSn-X% heterostructure. Detailed photocatalytic investigation portrays superior performance of LSn-10 % with a rate constant of 4.9 × 10<sup>–2</sup> min<sup>-1</sup> and 3.2 × 10<sup>-2</sup> min<sup>-1</sup> against ARS and RhB dyes, respectively. Further, the observations from optical and electrochemical studies help to figure out why LSn-10 % offered the best photocatalytic performance among the synthesized catalysts. Radical reveals that the superoxide and hydroxide radicals were found to be the key radicals responsible for photocatalytic degradation of ARS and RhB dyes were The CB and VB potential of LaCoO<sub>3</sub> is found to be 1.25 and -0.99 eV; for SnS<sub>2</sub> it is found to be 1.95 and 0.045 eV. Finally, considering all these observations a possible degradation mechanism was proposed. Overall, highly efficient visible light active photocatalysts were explored which may open the possibility of utilizing the photocatalyst for real-time degradation of environmental pollutants.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106105"},"PeriodicalIF":5.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579237","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

2.5D femtosecond laser microstructuring of complex surface patterns

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-23 DOI: 10.1016/j.surfin.2025.106099

Jaka Petelin, Jernej Jan Kočica, Jaka Mur, Rok Petkovšek

Surface structuring aimed at improving aerodynamic, hydrodynamic, and wetting properties has gained traction as methods of material processing evolved and the need for highly efficient manufacturing manifested. Femtosecond laser processing has matured as a manufacturing method but remains limited in throughput and scalability due to the high precision required. Here we present a new concept for 2.5-dimensional surface structuring that simultaneously improves processing throughput and precision compared to traditional laser surface structuring approaches, leveraging the pulse-on-demand capabilities of the latest femtosecond laser sources. The approach is compatible with any repeatable and predictable scanning system, where we demonstrate an up to 10-fold increase in processing throughput compared to standard layer-by-layer material removal. Moreover, the precise pulse emission timing enables near-continuous variation in the laser pulse repetition rate, achieving pulse positioning precision equivalent to 30 ns timing steps. Further, we measure the material-dependent ablation response to changing laser pulse repetition rates, identifying intervals where the material removal rate is linearly scalable with the repetition rate while preserving the intrinsic high-quality of ultra-short laser processing. The proof of concept is a single-step femtosecond laser processing of surfaces based on a depth-encoded image input.

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引用次数: 0

Optimizing banana preservation with bandgap-dependent curcumin-modified Cu-doped-ZnO nanoparticles in chitosan edible coatings

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces

Pub Date : 2025-02-23 DOI: 10.1016/j.surfin.2025.106104

Lilia Setya Wahyuni, Nuryono Nuryono, Adhi Dwi Hatmanto

ZnO nanoparticles possess antimicrobial properties and are widely used in food packaging to enhance food safety and shelf life. This study aimed to synthesize and characterize novel Cu-doped ZnO nanoparticles (Cu-ZnO) further modified with curcumin (Cu-ZnO@cur) to improve antibacterial activity by lowering band gap energy. The efficacy of these nanoparticles was evaluated as an active ingredient in chitosan-based edible coatings for banana preservation. The materials were characterized using X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, UV–visible diffuse reflectance spectroscopy (UV-visible DRS), and Transmission Electron Microscopy (TEM). Antibacterial activity was tested against Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative) using the disc diffusion method. The nanoparticles were then incorporated into a chitosan-based matrix and applied as an edible coating for bananas. Cu3%-ZnO and Cu1%-ZnO@cur nanoparticles exhibited the most potent antibacterial activity, with inhibition zones of 13.67 mm and 9.45 mm (against Staphylococcus aureus) and 11.83 mm and 12.89 mm (against E. coli), respectively. Chitosan coatings containing 1% (w/w) Cu3%-ZnO and Cu%-ZnO@cur significantly reduced banana mass loss by 16.42% and 17.58% after seven days of storage. Our findings highlight their potential as effective, eco-friendly antimicrobial agents for enhancing the shelf life of fresh produce and advancing sustainable food packaging solutions.

{"title":"Optimizing banana preservation with bandgap-dependent curcumin-modified Cu-doped-ZnO nanoparticles in chitosan edible coatings","authors":"Lilia Setya Wahyuni, Nuryono Nuryono, Adhi Dwi Hatmanto","doi":"10.1016/j.surfin.2025.106104","DOIUrl":"10.1016/j.surfin.2025.106104","url":null,"abstract":"<div><div>ZnO nanoparticles possess antimicrobial properties and are widely used in food packaging to enhance food safety and shelf life. This study aimed to synthesize and characterize novel Cu-doped ZnO nanoparticles (Cu-ZnO) further modified with curcumin (Cu-ZnO@cur) to improve antibacterial activity by lowering band gap energy. The efficacy of these nanoparticles was evaluated as an active ingredient in chitosan-based edible coatings for banana preservation. The materials were characterized using X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, UV–visible diffuse reflectance spectroscopy (UV-visible DRS), and Transmission Electron Microscopy (TEM). Antibacterial activity was tested against <em>Staphylococcus aureus</em> (Gram-positive) and <em>Escherichia coli</em> (Gram-negative) using the disc diffusion method. The nanoparticles were then incorporated into a chitosan-based matrix and applied as an edible coating for bananas. Cu3%-ZnO and Cu1%-ZnO@cur nanoparticles exhibited the most potent antibacterial activity, with inhibition zones of 13.67 mm and 9.45 mm (against <em>Staphylococcus aureus</em>) and 11.83 mm and 12.89 mm (against <em>E. coli</em>), respectively. Chitosan coatings containing 1% (w/w) Cu3%-ZnO and Cu%-ZnO@cur significantly reduced banana mass loss by 16.42% and 17.58% after seven days of storage. Our findings highlight their potential as effective, eco-friendly antimicrobial agents for enhancing the shelf life of fresh produce and advancing sustainable food packaging solutions.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"61 ","pages":"Article 106104"},"PeriodicalIF":5.7,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511670","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}

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