Applied Surface Science最新文献_第3页

DBD plasma-treated polyester fabric coated with doped PEDOT:PSS for thermoregulation 涂有掺杂 PEDOT:PSS 的 DBD 等离子处理聚酯织物，用于热调节

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162152

Cátia Magalhães, Ana Isabel Ribeiro, Rui Rodrigues, Ângela Meireles, Alexandra C. Alves, João Rocha, Fábio Pedroso de Lima, Marcos Martins, Bogdana Mitu, Veronica Satulu, Gheorghe Dinescu, Jorge Padrão, Andrea Zille

{"title":"DBD plasma-treated polyester fabric coated with doped PEDOT:PSS for thermoregulation","authors":"Cátia Magalhães, Ana Isabel Ribeiro, Rui Rodrigues, Ângela Meireles, Alexandra C. Alves, João Rocha, Fábio Pedroso de Lima, Marcos Martins, Bogdana Mitu, Veronica Satulu, Gheorghe Dinescu, Jorge Padrão, Andrea Zille","doi":"10.1016/j.apsusc.2024.162152","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162152","url":null,"abstract":"The manufacturing process of thermoregulation products with polyester (PES) fabric and conductive polymers such as poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT:PSS) with proper wearability, comfort, and high performance is still a challenge due to low adhesion, environment instability and non-uniform coatings. This study presents a simple and effective method for producing thermoregulatory PES fabrics using the Joule heating effect. Textiles treated with dielectric barrier discharge (DBD) plasma were functionalized with PEDOT:PSS incorporating secondary dopants, such as dimethyl sulfoxide (DMSO) and glycerol (GLY). PEDOT:PSS was used because it does not compromise the mechanical properties of base materials. DBD plasma treatment was applied to PES to improve the substrate’s functional groups and consequently increase adhesion and homogeneity of the PEDOT:PSS on the substrate. The polymer were applied to the textiles by dip-pad-dry-cure method ensuring uniform distribution and homogeneous heating of the materials. The samples’ conductivity, impedance, potential and Joule effect, and their morphological, chemical and thermal properties were studied. Control samples without plasma treatment and secondary dopants were also prepared. The results showed that the DBD-treated samples, coated with 5 layers of PEDOT:PSS, doped with DMSO 7 % (w/v), displayed the best conductivity and Joule effect performance reaching 44.3 °C after 1 h.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"80 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848977","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

Bifunctional MoS2@Cu2O heterojunction within scaffold for dual-mode synergistic antibacterial effects

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162154

Cijun Shuai, Gao Pan, Zheng Wang, Tiantian He, Xiong Shuai, Qi Zhong, Shuping Peng

{"title":"Bifunctional MoS2@Cu2O heterojunction within scaffold for dual-mode synergistic antibacterial effects","authors":"Cijun Shuai, Gao Pan, Zheng Wang, Tiantian He, Xiong Shuai, Qi Zhong, Shuping Peng","doi":"10.1016/j.apsusc.2024.162154","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162154","url":null,"abstract":"MoS2 has shown potential in enhancing biological scaffolds with sonodynamic therapy. However, its efficacy in generating reactive oxygen species (ROS) is constrained by electron-hole recombination, which results in insufficient ROS levels to penetrate bacterial biofilms. To address this limitation, we adopted a dual-strategy approach by utilizing MoS2@Cu2O nanozymes with Type-II heterojunctions and enzyme-like activity, thereby enabling dual-mode antibacterial effects via the integration of sonodynamic therapy (SDT) and chemodynamic therapy (CDT). Specifically, we integrated MoS2@Cu2O nanozymes into poly-L-lactic acid scaffolds via selective laser sintering. Under ultrasound excitation, the electron-hole separation in MoS2@Cu2O heterojunctions generated 1O2 and ●OH outside the bacteria. Both simulation and experiments revealed the carriers’ separation mechanism and transfer path. Meanwhile, the Cu ions released by the scaffolds generated ●OH and consumed glutathione through the Cu+/Cu2+ cycle, disrupting the redox balance inside the bacteria. A reactive oxygen species storm was formed through the dual attack on the interior and exterior of bacteria, inducing bacterial apoptosis. The obtained inhibition rates of S.aureus and E.coli were 97 % and 96 %, respectively. These results indicate that the MoS2@Cu2O/PLLA scaffold is promising for dual-mode SDT/CDT efficient antibacterial treatment.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"8 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848973","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

A thermoplastic PMMA@W18O46 nanocomposite for UVC optical detection

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162129

Lidia Mezzina, Angelo Nicosia, Antonino Mazzaglia, Maria Pia Casaletto, Yanqiu Zhu, Placido G. Mineo

{"title":"A thermoplastic PMMA@W18O46 nanocomposite for UVC optical detection","authors":"Lidia Mezzina, Angelo Nicosia, Antonino Mazzaglia, Maria Pia Casaletto, Yanqiu Zhu, Placido G. Mineo","doi":"10.1016/j.apsusc.2024.162129","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162129","url":null,"abstract":"The monitoring of ionizing radiation-induced damage is increasingly significant, especially within the framework of extraterrestrial missions, and serves as a critical measure to prevent damage to living beings and to materials. In this work, a passive detector for UVC radiations (280–––100 nm) has been obtained by embedding W18O49 nanorods into a polymethyl methacrylate matrix through a bulk in-situ radical polymerization, ensuring a tungsten-based nanostructures homogeneous dispersion. The photochromic nanocomposite was characterized via thermogravimetric analysis (TGA), Differential Scanning Calorimetry (DSC), Gel Permeation Chromatography (GPC), field emission scanning electron microscopy (FEI-SEM), X-rays Photoemission Spectroscopy (XPS), FT-IR, and UV–visible spectroscopies. The efficacy of the UVC sensing was investigated by exposing the nanocomposite to a 254 nm light source and monitoring the sensor response through UV–Vis spectroscopy. Finally, an explanation for the observed photochromic variation is proposed. The nanocomposite thin film exhibits excellent photochromic properties, with a fast and reversible spectroscopic change from colorless to grey-blue color, which could be easily detected visually or by simple optical devices. The obtained system shows a linear detection of UVC rays, from 5000 to 300000µmol/m−2(−|-), highlighting its potential for practical applications in environments where robust, flexible and power-independent devices are required.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"23 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848978","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

Enhancing Titanium-Osteointegration: Antimicrobial, anti-inflammatory and osteogenic properties of multifunctional coatings through Layer-by-Layer Self-Assembly

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162149

Danyang Xu, Xiaofeng Wang, Meiyu Li, Lei Xie, Kunjie Liu, Yihan Liu, Jinping Lan, Pengde Han, He Lin, Lili Song, Xuejiao Zhang, Yong Huang

{"title":"Enhancing Titanium-Osteointegration: Antimicrobial, anti-inflammatory and osteogenic properties of multifunctional coatings through Layer-by-Layer Self-Assembly","authors":"Danyang Xu, Xiaofeng Wang, Meiyu Li, Lei Xie, Kunjie Liu, Yihan Liu, Jinping Lan, Pengde Han, He Lin, Lili Song, Xuejiao Zhang, Yong Huang","doi":"10.1016/j.apsusc.2024.162149","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162149","url":null,"abstract":"Titanium metal-based bone defect healing demands a balance between antimicrobial and osseointegration processes. The development of functionally integrated titanium surfaces possessing antimicrobial, anti-inflammatory, and pro-angiogenic/osteogenic qualities is of great significance. In this study, a novel approach was adopted where graphene oxide (GO), copper (Cu), and antimicrobial peptide (KR12) were loaded onto titanium surfaces with titanium dioxide nanorods (TN) structures to fabricate multifunctional coatings with multilayer “sandwich” structures, termed PGK-CuTN. The PGK-CuTN coating exhibited excellent mechanical properties, hydrophilicity, corrosion resistance, and bioactivity. In vitro, it effectively inhibited E. coli and S. aureus, with inhibition rates of approximately 63.22 % and 77.79 %, respectively. Cellular experiments on the PGK-CuTN surface demonstrated that RAW264.7 (in terms of polarization), HUVEC (regarding vasculogenesis), and MC3T3-E1 (for osteogenesis) displayed favorable adhesion and proliferation activities. At the molecular level, PGK-CuTN could direct RAW264.7 polarization towards the M2-type, enhance HUVEC migration and vascularization, and promote MC3T3-E1 differentiation into osteogenesis. In the in vivo bone defect model, the PGK-CuTN coating manifested potent anti-inflammatory, antibacterial, and bone-repair capabilities. Additionally, it exhibited remarkable biosafety and hemocompatibility. Overall, the PGK-CuTN coating integrates antibacterial, anti-inflammatory, angiogenic, and osteogenic functions, holding great promise for the treatment of infected bone defects.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"28 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848941","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

The influence of structural changes in Sub-Nanometer monolayers on gold surfaces toward cell morphology

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162151

Ting-Chiu Hung, Yu-Chieh Wu, Yit Lung Khung

{"title":"The influence of structural changes in Sub-Nanometer monolayers on gold surfaces toward cell morphology","authors":"Ting-Chiu Hung, Yu-Chieh Wu, Yit Lung Khung","doi":"10.1016/j.apsusc.2024.162151","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162151","url":null,"abstract":"There have been very few studies to suggest that changes in structural chemistry of a sub-nanometer surface monolayer could influence cell-surface interaction. To demonstrate this, a 5-carbon (odd) and a 6-carbon (even) linear thiol molecule as well as the cyclic derivative was grafted to gold surfaces to present either linear CH3 or cyclic distal group. Contact angle, XPS, FTIR-ATR and AFM were performed to profile various physiochemical aspects on the surfaces. Three cell types, MDA-MB-231(epithelial), MES-SA(fibroblast) and N2A(neuroblast) were incubated on these surfaces for 24 h. After incubation, the cells were examined with confocal microscopy and quantitative qPCR of the focal adhesion complexes were performed. We observed that epithelial MDA-MB-231 were aversive towards any form of organic monolayers regardless of the chemical structure while neuroblast N2A was indiscriminant towards any forms of organic monolayers. Interestingly, the morphology of fibroblast MES-SA linear was negatively affected by linear thiol and lesser influenced by cyclic derivatives despite both surfaces having similar chemical and wettability profile. To the best of the authors’ knowledge, this is the first report that suggested that subtle change in structural chemistry even at the sub-nanometer level can still be recognized by adhering fibroblast cells but not for other cell types.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"47 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848981","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

Molecular mechanisms of coal dust wettability: Hydrophilic group modulation for enhanced surface interactions 煤尘润湿性的分子机理：亲水基团调节增强表面相互作用

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162146

Wenjin Niu, Wen Nie, Qiu Bao, Qifan Tian, Ruoxi Li, Xiaohan Zhang, Chenfeng Shi, Ke Tong, Zhihui Zhang

{"title":"Molecular mechanisms of coal dust wettability: Hydrophilic group modulation for enhanced surface interactions","authors":"Wenjin Niu, Wen Nie, Qiu Bao, Qifan Tian, Ruoxi Li, Xiaohan Zhang, Chenfeng Shi, Ke Tong, Zhihui Zhang","doi":"10.1016/j.apsusc.2024.162146","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162146","url":null,"abstract":"The wettability of coal dust by surfactant-regulated solutions is influenced by the hydrophilic structures of the surfactants. This study combines macro- and microscopic experiments to determine the wettability performance of four surfactants with identical hydrophobic groups but different hydrophilic groups. Through molecular simulation, a molecular-level evaluation standard for the surfactant’s impact on coal dust wettability was established. Additionally, the correlation mechanism between the electrostatic potential distribution of the hydrophilic groups and their wettability was identified. Sulfonic groups—compared with sulfate, hydroxyl, and amino groups—can more effectively enhance the solution’s wettability, reducing the solution’s surface tension to as low as 22.1 mN/m and achieving a molecular wettability area of 78.84. Furthermore, the electrostatic potential extreme of the sulfonic group was − 53.61 kcal/mol, with an electrostatic potential wettability area of 28.99 Å2. This represents an improvement of approximately 34.43 % and 5170.91 %, respectively, compared with hydroxyl groups. Greater electrostatic potential extremes and electrostatic potential wettability areas led to stronger electrostatic adsorption, more adsorbed water molecules, and better wettability of coal dust. This study provides theoretical guidance for the rational design of functional surfactants for surface engineering and pollution control applications.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"7 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848980","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

Exploring the optical characteristics influenced by size and surface defects in AgInS2 quantum dots: A theoretical study with a simple ligand model 探索 AgInS2 量子点中受尺寸和表面缺陷影响的光学特性：使用简单配体模型的理论研究

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162142

Eunseog Cho, Ara Jo, Taegon Kim, Won-Joon Son, Nayoun Won, Seungmin Lee, Dae Sin Kim

{"title":"Exploring the optical characteristics influenced by size and surface defects in AgInS2 quantum dots: A theoretical study with a simple ligand model","authors":"Eunseog Cho, Ara Jo, Taegon Kim, Won-Joon Son, Nayoun Won, Seungmin Lee, Dae Sin Kim","doi":"10.1016/j.apsusc.2024.162142","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162142","url":null,"abstract":"Despite the recent great interest in ternary AgInS2 quantum dots (QDs), theoretical studies on fundamental features such as size-dependent optical properties and surface defect characteristics have been relatively scarce. This is due to the practical difficulty of performing electronic structure calculations that take into account not only the structural complexity of ternary AgInS2 QDs compared to conventional binary QDs, but also the complex organic ligands that cover the inorganic crystalline surface. In this study, we theoretically explored the optical properties of AgInS2 QDs from the cluster structures by introducing a simple ligand model that mimics the role of real ligands for surface passivation. First, an analytical equation is presented that relates size and bandgap, which indicates that the quantum confinement effect of AgInS2 QDs is smaller than that of binary InP QDs. Through electronic structure calculations of surface defects, it was found that surface In defects alone or in combination with surface S defects significantly inhibit radiative transition properties, whereas surface Ag defects do not adversely affect its optical properties. Furthermore, synthesis and measurement of AgInS2 QDs validate the bandgap equation and surface defect characteristics.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"22 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840812","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 polyaryl ether coatings bearing phthalazinone moiety resistant to salt spray corrosion

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162148

Yi Zhao, Lina Liu, Jiahui Li, Jing Zhao, Chengwen Gu, Beitao Liu, Danhui Wang, Shouhai Zhang, Xigao Jian, Zhihuan Weng

{"title":"Engineering polyaryl ether coatings bearing phthalazinone moiety resistant to salt spray corrosion","authors":"Yi Zhao, Lina Liu, Jiahui Li, Jing Zhao, Chengwen Gu, Beitao Liu, Danhui Wang, Shouhai Zhang, Xigao Jian, Zhihuan Weng","doi":"10.1016/j.apsusc.2024.162148","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162148","url":null,"abstract":"Metal corrosion protection is particularly important when marine power systems and exhaust pipes are exposed to high temperatures and salt spray for long periods of time. The key to solving the problem lies in the development of a corrosion resistant coating that is resistant to high temperatures and salt spray. The unique twisted non-coplanar structure of poly(phthalazinone ether nitrile ketone) (PPENK) provides excellent temperature resistance, further improved by adding fillers. The PPENK is used as a resin matrix, combined with inorganic fillers such as silicon carbide, zirconium dioxide and aluminum triphosphate to develop an anticorrosive coating for the surface of steamship in high-temperature environments. This study involved a detailed investigation of the composite coating’s anti-corrosion properties with various formulations, aiming to assess its engineering properties. The results demonstrated that adding silicon carbide and aluminum triphosphate results in a coating with superior abrasion resistance. Notably, aluminum triphosphate significantly enhanced abrasion resistance, regardless of the quantity added. Assessment of temperature and decay resistance was conducted using high-temperature oxidation tests, salt spray tests, and electrochemical impedance spectroscopy, and the resultant coating maintained performance for over 3000 h at 250℃ and offered protection against salt spray for at least 2400 h. Conducting this study on polyaryl ether coatings with phthalazinone structures under high-temperature salt spray conditions establishes a robust basis for protecting maritime operational systems against corrosion, aiming to reduce economic losses and prevent casualties from equipment damage.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"145 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848972","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

Unveiling the impact of nitrogen-doped graphene quantum dots on improving the photocatalytic performance of CuWO4 nanocomposite 揭示掺氮石墨烯量子点对提高 CuWO4 纳米复合材料光催化性能的影响

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162130

Parthivi Aloni, Prashanth Venkatesan, Arun Prakash Sundaresan, Deblina Roy, Rohit Kumar Ranjan, Ankit Sharma, Ruey-An Doong, N. Clament Sagaya Selvam

{"title":"Unveiling the impact of nitrogen-doped graphene quantum dots on improving the photocatalytic performance of CuWO4 nanocomposite","authors":"Parthivi Aloni, Prashanth Venkatesan, Arun Prakash Sundaresan, Deblina Roy, Rohit Kumar Ranjan, Ankit Sharma, Ruey-An Doong, N. Clament Sagaya Selvam","doi":"10.1016/j.apsusc.2024.162130","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162130","url":null,"abstract":"In this study, nitrogen-doped graphene quantum dots (NGQD) decorated CuWO4 nanocomposite (NGQD-CuWO4) were synthesized for enhanced photocatalytic tetracycline (TC) degradation under visible light irradiation. The incorporation of NGQDs significantly increased light absorption, narrowed the band gap, and improved charge transfer in CuWO4, leading to enhanced photocatalytic efficiency. TEM analysis confirmed the successful integration of NGQDs with CuWO4, showing uniform dispersion and lattice fringes, while Raman spectra revealed the characteristic D and G bands of NGQDs, indicating their graphene-like properties. The optimal NGQD loading (3NGQD-CuWO4) achieved a degradation efficiency of 99 % within 90 min, exhibiting a three-fold increase in performance compared to pure CuWO4. Photocurrent measurements indicated that incorporating NGQD enhanced the charge separation in CuWO4 displaying the highest photocurrent density. The lowest charge transfer resistance observed in the hybrid photocatalyst is confirmed by electrochemical impedance spectroscopy (EIS), indicating the significant role of NGQD in increasing the charge transfer kinetics. Optical studies further demonstrated a significant red shift in the absorption spectrum and a reduction in the band gap from 2.43 eV for pure CuWO4 to 2.29 eV for the 3NGQD-CuWO4 composite. Kinetic studies indicated a pseudo-first-order reaction with a rate constant three times higher for NGQD-CuWO4 compared to CuWO4 alone. Hydroxyl radicals (•OH) were identified as the main reactive species responsible for degradation. This work highlights that NGQD incorporation makes CuWO4 an efficient, stable, and promising photocatalyst for environmental applications, particularly in treating pharmaceutical-contaminated water.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"78 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840809","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

Electric field-enhanced CO2 dissolution and adsorption for geological carbon sequestration in saline aquifers

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2024-12-18 DOI: 10.1016/j.apsusc.2024.162147

Zheng Li, Liangyu Zhao, Jianlong Kou, Xiaoguang Wang

{"title":"Electric field-enhanced CO2 dissolution and adsorption for geological carbon sequestration in saline aquifers","authors":"Zheng Li, Liangyu Zhao, Jianlong Kou, Xiaoguang Wang","doi":"10.1016/j.apsusc.2024.162147","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162147","url":null,"abstract":"Electric fields can enhance CO2 sequestration in saline aquifers by influencing both dissolution and adsorption, with effects dependent on the field’s orientation, strength, and the rock surface’s wettability. Molecular dynamics simulations reveal that perpendicular electric fields increase CO2 dissolution in water by up to 41.74% on hydrophobic rock surfaces through promoting CO2 desorption, while on hydrophilic rock surfaces, they boost CO2 adsorption by up to 8.27%. These effects intensify with increasing field strength. In contrast, parallel electric fields slightly enhance CO2 adsorption on hydrophobic surfaces but decrease it on hydrophilic ones. The underlying mechanism involves the electric field-induced reorientation of water dipoles, aligning or disrupting hydrogen bonds. In hydrophobic systems, perpendicular fields promote CO2 diffusion into the water phase by inducing perpendicular hydrogen bonds. On hydrophilic surfaces, these fields disrupt hydrogen bonds and non-boned interactions between water and the surface, leading to water detachment and promoting CO2 adsorption. Parallel fields induce parallel hydrogen bonds, impeding CO2 diffusion and reducing its dissolution into the H2O phase (or adsorption onto the rock surface). These findings highlight the potential of electric fields to enhance geologic CO2 sequestration in saline aquifers.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"51 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848975","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