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Highly efficient removal of Cr(III) and Ni(II) ions from aqueous solutions using a new hybrid [magnetic graphene oxide/Dialdehyde Nanocellulose] adsorbent 使用新型混合[磁性氧化石墨烯/双醛纳米纤维素]吸附剂高效去除水溶液中的Cr(III)和Ni(II)离子
IF 5.7 3区 材料科学
FlatChem Pub Date : 2026-07-01 Epub Date: 2026-06-12 DOI: 10.1016/j.flatc.2026.101078
Chaima Hassouna, Soumaya Agren, Jamal El Haskouri, Mohamed Hassen V. Baouab
{"title":"Highly efficient removal of Cr(III) and Ni(II) ions from aqueous solutions using a new hybrid [magnetic graphene oxide/Dialdehyde Nanocellulose] adsorbent","authors":"Chaima Hassouna,&nbsp;Soumaya Agren,&nbsp;Jamal El Haskouri,&nbsp;Mohamed Hassen V. Baouab","doi":"10.1016/j.flatc.2026.101078","DOIUrl":"10.1016/j.flatc.2026.101078","url":null,"abstract":"<div><div>A novel ternary magnetic nanocomposite, DANC-[GO@Fe<sub>3</sub>O<sub>4</sub>], was successfully synthesized via co-precipitation and demonstrated exceptional adsorption performance for Cr(III) removal from water. Characterization confirmed the successful integration of dialdehyde nanocellulose, graphene oxide, and Fe<sub>3</sub>O<sub>4</sub> into a stable, magnetically recoverable adsorbent. Under optimized adsorption parameters (pH 6, 25 °C, 6 h, 0.025 g adsorbent in 0.05 L of 250 mg/L Cr(III) solution), DANC-[GO@Fe<sub>3</sub>O<sub>4</sub>] attains a notable 98.72% removal efficacity in addition to a high adsorption capacity of 493.60 mg/g, remarkably outperforming non-combined magnetic graphene oxide and dialdehyde nanocellulose adsorbents. Cr(III) adsorption procedure follows pseudo-second-order kinetics (k<sub>2</sub> = 0.0226 g·mg<sup>−1</sup>·h<sup>−1</sup>, R<sup>2</sup> = 0.989) and displayed spontaneous character (ΔG° = −12.48 kJ/mol at 298 K). The equilibrium findings are better fitted by the Freundlich isotherm model (R<sup>2</sup> = 0.985, KF = 84.0 mg/g, <em>n</em> = 1.03), demonstrating multilayer adsorption on a heterogeneous surface. Moreover, DANC-[GO@Fe<sub>3</sub>O<sub>4</sub>] exhibits remarkable recyclability, retaining approximately 90% of its primary adsorption performance after six successive runs. Compared to Ni(II), DANC-[GO@Fe<sub>3</sub>O<sub>4</sub>] demonstrates better affinity for Cr(III) associated with its relatively reduced ionic radius (62 pm vs 69 pm) and higher coordination capacity with oxygen-containing functional moieties. The collected data highlights the magnetic material's promising capability as a competent, recoverable adsorbent for the depollution Cr(III)-contaminated wastewater.</div><div>Environmental Implication:</div><div>The synthesized DANC-[GO@Fe<sub>3</sub>O<sub>4</sub>] nanocomposite presents significant environmental benefits by enabling highly efficient removal of Cr(III) from contaminated water, thereby reducing heavy metal pollution and associated ecological risks. Its high adsorption capacity and reusability minimize secondary waste generation and lower treatment costs. The magnetic recoverability further simplifies separation processes, reducing energy and chemical inputs. By integrating sustainable components such as nanocellulose, this material supports greener remediation strategies and offers a promising, eco-friendly solution for wastewater treatment and environmental protection.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"58 ","pages":"Article 101078"},"PeriodicalIF":5.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148499789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Innovative laser-assisted deposition of platinum nanoparticles onto the Ti3C2Tx MXenes and its application for hydrogen evolution 激光辅助沉积纳米铂在Ti3C2Tx MXenes上及其析氢应用
IF 5.7 3区 材料科学
FlatChem Pub Date : 2026-07-01 Epub Date: 2026-06-13 DOI: 10.1016/j.flatc.2026.101079
Vinícius dos Passos de Souza, Luís Marcelo Garcia da Silva, Márcia Tsuyama Escote, Sydney Ferreira Santos
{"title":"Innovative laser-assisted deposition of platinum nanoparticles onto the Ti3C2Tx MXenes and its application for hydrogen evolution","authors":"Vinícius dos Passos de Souza,&nbsp;Luís Marcelo Garcia da Silva,&nbsp;Márcia Tsuyama Escote,&nbsp;Sydney Ferreira Santos","doi":"10.1016/j.flatc.2026.101079","DOIUrl":"10.1016/j.flatc.2026.101079","url":null,"abstract":"<div><div>Hydrogen emerges as a key candidate in the transition toward sustainable energy systems; however, the development of efficient and cost-effective electrode materials remains a major challenge. In this study, we report a novel laser-assisted synthesis of Pt / Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> nanohybrid electrocatalysts with a low load of noble metal. The developed catalysts presented outstanding electrocatalytic properties for hydrogen evolution reactions (HER). The Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene is synthesized via a MILD route using an aqueous solution of LiF and HCl as an etchant. Pt / Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> was produced by dispersing the MXene in dimethyl sulfoxide and mixing it with H<sub>2</sub>PtCl<sub>6</sub> (in the ratio of 1 and 2 wt% of Pt). The solution is freeze-dried and in situ photo-reduced using a 450 nm laser under an argon atmosphere. Microstructural characterizations by TEM reveal a uniform distribution of Pt nanoparticles with a diameter ranging from 1.5 to 1.7 nm, a narrow particle size distribution, and pyramidal morphology. Electrochemical tests, including chronoamperometry, linear sweep voltammetry, and Tafel plots, demonstrate an improvement in HER activity, with a marked reduction in overpotential, from −344 mV to −89 mV at 10 mA/cm2. Tafel slope of 90 mV/dec demonstrates fast kinetics. The investigated approach successfully produced high-performance and cost-effective electrocatalysts with low Pt loading on highly conductive and stable MXene substrates.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"58 ","pages":"Article 101079"},"PeriodicalIF":5.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148499788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Advances and challenges toward real-world application of CVD-graphene as transparent conductive electrode in organic solar cells cvd -石墨烯透明导电电极在有机太阳能电池中的应用进展与挑战
IF 5.7 3区 材料科学
FlatChem Pub Date : 2026-07-01 Epub Date: 2026-06-24 DOI: 10.1016/j.flatc.2026.101082
Mahdi Ilka, Michael S.A. Kamel, Mohan V. Jacob
{"title":"Advances and challenges toward real-world application of CVD-graphene as transparent conductive electrode in organic solar cells","authors":"Mahdi Ilka,&nbsp;Michael S.A. Kamel,&nbsp;Mohan V. Jacob","doi":"10.1016/j.flatc.2026.101082","DOIUrl":"10.1016/j.flatc.2026.101082","url":null,"abstract":"<div><div>Organic solar cells (OSCs) have gained intensive research attention for their cost-effectiveness, flexibility, and light weight over traditional silicon devices. However, commercialization is partially hindered by using indium tin oxide (ITO) as the standard transparent conductive electrode (TCE) due to high fabrication costs, mechanical brittleness, and indium scarcity. Graphene TCEs offer a promising alternative with excellent conductivity, transparency, flexibility, chemical stability, and cost-effectiveness. Among synthesis methods, chemical vapor deposition (CVD) stands out for scalability, high-quality output, and thickness control, although challenges related to transfer processes, defect control, and large-area uniformity still limit practical implementation. This review evaluates graphene as an ITO-alternative, focusing on CVD synthesis. It highlights reported top efficiencies of OSCs with CVD-grown graphene-based TCEs and discusses key synthesis challenges. Plasma-enhanced CVD has emerged as a promising alternative to conventional thermal CVD for addressing some of these limitations, with recent advancements enabling the direct synthesis of graphene on transparent and flexible target substrates at lower temperatures compared to conventional CVD. Furthermore, practical strategies for improving scalability, uniformity, stability, and device integration of CVD-grown graphene TCEs for OSC applications are discussed.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"58 ","pages":"Article 101082"},"PeriodicalIF":5.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148499901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Pristine and silicon-doped AA- and AB-stacked germadiamanes: DFT insights into structural, mechanical, and optoelectronic properties 原始的和掺硅的AA和ab堆叠的德国金刚石:DFT洞察结构,机械和光电性能
IF 5.7 3区 材料科学
FlatChem Pub Date : 2026-07-01 Epub Date: 2026-07-06 DOI: 10.1016/j.flatc.2026.101089
R. Kevorkyants
{"title":"Pristine and silicon-doped AA- and AB-stacked germadiamanes: DFT insights into structural, mechanical, and optoelectronic properties","authors":"R. Kevorkyants","doi":"10.1016/j.flatc.2026.101089","DOIUrl":"10.1016/j.flatc.2026.101089","url":null,"abstract":"<div><div>Quasi two-dimensional (Quasi-2D) pristine and silicon-doped AA- and AB-stacked germadiamanes are proposed. According to DFT calculations, they are dynamically and mechanically stable, though they lack thermodynamic stability. The studied species are semiconductors. Their electronic bandgaps computed using hybrid Heyd–Scuseria–Ernzerhof 2006 (HSE06) density functional with spin-orbit coupling correction (SOC) fall in the range [0.93–1.98] eV. The increase in dopant concentration leads to a widening of the electronic bandgap. The nature of the electronic transition from the valence band (VB) to the conduction band (CB) depends on the dopant concentration. The highly doped species (75.0% Si) demonstrate indirect electronic transitions. Most of the remaining germadiamanes are direct bandgap semiconductors. Mechanical properties of the germadiamanes are comparable to those of siladiamanes, black phosphorus (BP), MoS<sub>2</sub>, and TiS<sub>3</sub>. Presumably, the studied germadiamanes can be used in (electro)photocatalytic, photovoltaic, and optical applications. Also, they may pave the way to a design of nanosized alternatives to conventional silicon computer chips.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"58 ","pages":"Article 101089"},"PeriodicalIF":5.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148499906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Visible-light driven 2D CoAl-LDH/1D Bi2O4 heterojunction for excellent photocatalytic performance for methylene blue degradation 可见光驱动的二维煤- ldh /1D Bi2O4异质结降解亚甲基蓝的优异光催化性能
IF 5.7 3区 材料科学
FlatChem Pub Date : 2026-07-01 Epub Date: 2026-06-21 DOI: 10.1016/j.flatc.2026.101081
E.D. Vasunthra, Monika Celes Vediyappan, Jagannathan Madhavan, Adikesavan Selvi, R. Sumathi
{"title":"Visible-light driven 2D CoAl-LDH/1D Bi2O4 heterojunction for excellent photocatalytic performance for methylene blue degradation","authors":"E.D. Vasunthra,&nbsp;Monika Celes Vediyappan,&nbsp;Jagannathan Madhavan,&nbsp;Adikesavan Selvi,&nbsp;R. Sumathi","doi":"10.1016/j.flatc.2026.101081","DOIUrl":"10.1016/j.flatc.2026.101081","url":null,"abstract":"<div><div>Photocatalysts have garnered significant attention for their sustainability. In this study, CoAl-LDH nanoflakes and Bi<sub>2</sub>O<sub>4</sub> nanorods were successfully fabricated using a hydrothermal method. The resulting materials were optimised, and characterized to assess their chemical and physical properties. Techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–visible diffuse reflectance spectroscopy (UV-DRS), Brunauer-Emmett-Teller (BET) surface area analysis and photoelectrochemical (PEC) analysis were employed to evaluate the structural, morphological and optical characteristics of the synthesized samples. Methylene blue was used as a target pollutant to assess the photocatalytic activity of the materials. Under visible light irradiation, the CoAl-LDH/Bi<sub>2</sub>O<sub>4</sub> nanocomposite demonstrated an impressive degradation efficiency of 88% towards methylene blue within 60 min. The BET results revealed that the optimised CAB-10 nanocomposite possessed a high specific surface area of 107.37 m<sup>2</sup>/g, which was 5.3 and 11.3 times higher than those of pure CoAl-LDH (20.29 m<sup>2</sup>/g) and Bi<sub>2</sub>O<sub>4</sub> (9.48 m<sup>2</sup>/g), respectively, providing more active sites for photocatalytic reactions. Furthermore, compared with bare CoAl-LDH and Bi<sub>2</sub>O<sub>4</sub>, the optimised CAB-10 nanocomposite exhibited a superior rate constant of 0.036 min<sup>−1</sup>. Stability and reusability studies demonstrated that the CAB-10 nanocomposite lost 12% of its photocatalytic efficiency after six cycles. Moreover, in the Nyquist plot, results revealed that the CoAl-LDH/Bi<sub>2</sub>O<sub>4</sub> composite has a lower charge transfer resistance (R<sub>ct</sub>) value of (∼23.68 Ω), compared to pure CoAl-LDH (∼55.4 Ω) and Bi<sub>2</sub>O<sub>4</sub> (∼38.97 Ω). These findings highlight the effectiveness of the CAB-10 nanocomposite as a promising photocatalyst for environmental remediation, thus paving the way for further advancements in the development of efficient photocatalytic materials.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"58 ","pages":"Article 101081"},"PeriodicalIF":5.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148499910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Structural and electronic characteristics in Cu-Al layered double hydroxide/titanium dioxide (Cu-Al LDH/TiO2) composites Cu-Al层状双氢氧化物/二氧化钛(Cu-Al LDH/TiO2)复合材料的结构和电子特性
IF 6.2 3区 材料科学
FlatChem Pub Date : 2026-05-01 Epub Date: 2026-04-26 DOI: 10.1016/j.flatc.2026.101047
Widyan Muhammad Naufal, Lintang Permata Susilo, Sayekti Wahyuningsih, Edi Pramono, Isna Nurmilatul Azizah, Teguh Endah Saraswati
{"title":"Structural and electronic characteristics in Cu-Al layered double hydroxide/titanium dioxide (Cu-Al LDH/TiO2) composites","authors":"Widyan Muhammad Naufal,&nbsp;Lintang Permata Susilo,&nbsp;Sayekti Wahyuningsih,&nbsp;Edi Pramono,&nbsp;Isna Nurmilatul Azizah,&nbsp;Teguh Endah Saraswati","doi":"10.1016/j.flatc.2026.101047","DOIUrl":"10.1016/j.flatc.2026.101047","url":null,"abstract":"<div><div>The limited understanding of how synthesis parameters govern the structure–property relationships in layered-oxide hybrid materials remains a key challenge for rational materials design. In this study, a systematic approach is employed by independently controlling carbonate concentration (0–2 M Na<sub>2</sub>CO<sub>3</sub>), hydrothermal temperature (120–190 °C), and compositional ratio to elucidate their effects on Cu-Al layered double hydroxide (LDH), one-dimensional TiO<sub>2</sub> (1D TiO<sub>2</sub>), and their composites. The results show that an optimal Na<sub>2</sub>CO<sub>3</sub> concentration of 1 M enables the formation of a well-ordered brucite-like LDH structure. Increasing hydrothermal temperature to 190 °C enhances TiO<sub>2</sub> crystallinity and drives morphological evolution toward well-defined nanorods with lengths of ∼2.16 μm and widths of ∼129 nm. The resulting composites preserve the crystal structures of both components, indicating surface-level interactions without interlayer intercalation. Textural analysis reveals mesoporous characteristics, with the specific surface area increasing from 40.93 to 44.84 m<sup>2</sup>/g at a 4:1 ratio, followed by a decrease at higher TiO<sub>2</sub> content. Optical analysis reveals that the band gap can be systematically tuned from 3.12 to 3.51 eV depending on composition, accompanied by composition-dependent charge recombination behavior. Overall, this work highlights the importance of controlling synthesis conditions and compositional ratios to tailor the structural and optoelectronic properties of Cu-Al LDH/TiO<sub>2</sub> hybrid materials.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"57 ","pages":"Article 101047"},"PeriodicalIF":6.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147798045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Functionalized graphitic carbon nitride nanosheets as next-generation fillers for fabrication of CO2 separation mixed matrix membranes 功能化石墨氮化碳纳米片作为新一代填料制备CO2分离混合基质膜
IF 6.2 3区 材料科学
FlatChem Pub Date : 2026-05-01 Epub Date: 2026-05-02 DOI: 10.1016/j.flatc.2026.101051
Xinyu Wang , Arash Mollahosseini , Fatemeh Seyedpour Taji , Jian Chen , Khalid Azyat , John Canlas , Paul Concepcion , Katherine Lin , Mohtada Sadrzadeh , Jae-Young Cho
{"title":"Functionalized graphitic carbon nitride nanosheets as next-generation fillers for fabrication of CO2 separation mixed matrix membranes","authors":"Xinyu Wang ,&nbsp;Arash Mollahosseini ,&nbsp;Fatemeh Seyedpour Taji ,&nbsp;Jian Chen ,&nbsp;Khalid Azyat ,&nbsp;John Canlas ,&nbsp;Paul Concepcion ,&nbsp;Katherine Lin ,&nbsp;Mohtada Sadrzadeh ,&nbsp;Jae-Young Cho","doi":"10.1016/j.flatc.2026.101051","DOIUrl":"10.1016/j.flatc.2026.101051","url":null,"abstract":"<div><div>Fossil fuel usage remains a significant contributor to global greenhouse gas emissions, exacerbating climate change and environmental degradation. To address this challenge, scalable and cost-effective carbon capture technologies are urgently needed. Membrane-based gas separation offers a promising solution due to its low energy consumption and operational simplicity. Among membrane materials, poly(ether-<em>block</em>-amide) (Pebax 1657) has shown potential for CO<sub>2</sub> separation. However, its semi-crystalline nature and limited mechanical stability hinder widespread application. This study presents a novel approach to enhance the performance of Pebax-based thin-film membranes by incorporating 4,4′-diaminodiphenyl sulfone surface-functionalized graphitic carbon nitride (fGCN) nanosheets into the Pebax matrix. Supported by molecular dynamics simulations, material characterization of the developed membranes revealed that functionalization significantly enhances hydrogen bonding and van der Waals interactions between fGCN and the Pebax polymer matrix at the abundant nanofiller-polymer interface, allowing the formation of membranes with improved nanosheet dispersion and significantly lower crystallinity. At 2 wt% loading, a CO<sub>2</sub> permeability of 70.9 Barrer and a CO<sub>2</sub>/N<sub>2</sub> selectivity of 73.2 was achieved at 4 bar under a single gas experiment, representing an increase of 53.6% in permeability and 93.9% in selectivity compared to Pebax. Under mixed-gas conditions, membrane permeability and selectivity increase with pressure, indicating sorption-dominated transport effectively promoted by fGCN.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"57 ","pages":"Article 101051"},"PeriodicalIF":6.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147849531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Green preparation of a novel cationic surfactant derived from starch carbon dots and the high surface activity as well as the antibiosis for E. coli and S. aureus 绿色淀粉碳点制备的新型阳离子表面活性剂及其对大肠杆菌和金黄色葡萄球菌的高表面活性
IF 6.2 3区 材料科学
FlatChem Pub Date : 2026-05-01 Epub Date: 2026-04-30 DOI: 10.1016/j.flatc.2026.101049
Jian Yang, Zhixiang Liu, Xiang Liu
{"title":"Green preparation of a novel cationic surfactant derived from starch carbon dots and the high surface activity as well as the antibiosis for E. coli and S. aureus","authors":"Jian Yang,&nbsp;Zhixiang Liu,&nbsp;Xiang Liu","doi":"10.1016/j.flatc.2026.101049","DOIUrl":"10.1016/j.flatc.2026.101049","url":null,"abstract":"<div><div>Renewable carbohydrates provided abundant resources for the preparation of carbon dots (CDs), which could serve as a starting material for synthesis of fine chemicals. In this work, soluble starch was first formulated into an aqueous dispersion and then converted into starch-derived CDs (designated as SCDs) via hydrothermal treatment. Subsequently, SCDs were facilely and efficiently modified with <em>n</em>-dodecylamine in an aqueous medium (the modified product was denoted as SCDs-C12). Experimental results demonstrated that a dilute solution of SCDs-C12 reduced the surface tension of water from 72.0 to 31.9 mN·m<sup>−1</sup> (25 °C), and its surface activity was comparable to that of some novel gemini surfactants. Additionally, the positively charged SCDs-C12 exhibited excellent performance in inhibiting the growth of <em>E. coli</em>, with a minimum inhibitory concentration of only 0.05 mg·mL<sup>−1</sup>, outperforming many previously reported CD-based materials. In summary, this work developed an environmentally friendly and green strategy for the fabrication of multifunctional cationic surfactants.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"57 ","pages":"Article 101049"},"PeriodicalIF":6.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147850286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
High-performance PVA/carbon fiber E-skin for AI-driven real-time tactile sensing 高性能PVA/碳纤维电子皮肤,用于人工智能驱动的实时触觉感应
IF 6.2 3区 材料科学
FlatChem Pub Date : 2026-05-01 Epub Date: 2026-04-30 DOI: 10.1016/j.flatc.2026.101048
Yong Yan , Yugang Chen , Mengyu Cao , Qifei Lv , Xiaoyan Li , Hang Zhou , Lingzhi Jin , Shasha Wang , Linghai Xie
{"title":"High-performance PVA/carbon fiber E-skin for AI-driven real-time tactile sensing","authors":"Yong Yan ,&nbsp;Yugang Chen ,&nbsp;Mengyu Cao ,&nbsp;Qifei Lv ,&nbsp;Xiaoyan Li ,&nbsp;Hang Zhou ,&nbsp;Lingzhi Jin ,&nbsp;Shasha Wang ,&nbsp;Linghai Xie","doi":"10.1016/j.flatc.2026.101048","DOIUrl":"10.1016/j.flatc.2026.101048","url":null,"abstract":"<div><div>Achieving simultaneous high sensitivity, broad detection range, and long-term durability in flexible pressure sensors remains a critical challenge for intelligent tactile sensing applications. Here, we present a high-performance electronic skin (<em>E</em>-skin) based on polyvinyl alcohol/carbon fiber (PVA/CF) nanofiber membranes fabricated via in-situ electrospinning onto screen-printed carbon electrodes on PET substrates. The optimized sensor exhibits a hierarchical multi-stage sensitivity profile of 870.56 kPa<sup>−1</sup> (0–1 kPa), 334.69 kPa<sup>−1</sup> (1–10 kPa), 56.81 kPa<sup>−1</sup> (10–220 kPa), and 14.22 kPa<sup>−1</sup> (220–420 kPa), an ultra-low detection limit of 2.3 Pa, ultrafast response and recovery times of 25 ms and 18 ms, and exceptional cyclic durability over 20,000 loading/unloading cycles at 140 kPa. Integration with a one-dimensional convolutional neural network (1D CNN) enables intelligent texture recognition, achieving 100% classification accuracy across eight diverse surface textures. Furthermore, a real-time recognition system incorporating signal buffering, preprocessing, and CNN inference is developed, demonstrating practical applicability for continuous tactile monitoring. The developed PVA/CF <em>E</em>-skin, combining superior sensing performance with AI-driven recognition capabilities, offers a cost-effective and scalable platform for advanced robotic tactile perception and human–machine interaction.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"57 ","pages":"Article 101048"},"PeriodicalIF":6.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147798040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Synergistic effect of acrylic acid grafting and graphene oxide incorporation on Polyethersulfone ultrafiltration membranes for sewage wastewater treatment 聚醚砜超滤膜处理污水废水的丙烯酸接枝和氧化石墨烯的协同效应
IF 6.2 3区 材料科学
FlatChem Pub Date : 2026-05-01 DOI: 10.1016/j.flatc.2026.101054
Funeka Matebese, Meladi L. Motloutsi, Nonkululeko Malomane, Muthumuni Managa, Richard M. Moutloali
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