Diamond and Related Materials最新文献_第2页

Evaluating the detection potential of C59X as well as C54B3N3 for the CO molecule from DFTB view 从DFTB的角度评价C59X和C54B3N3对CO分子的检测潜力

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-22 DOI: 10.1016/j.diamond.2025.112862

Jing Li , Jia-Le Zhang , Qi-Jian Zhang , Lin Zhang

{"title":"Evaluating the detection potential of C59X as well as C54B3N3 for the CO molecule from DFTB view","authors":"Jing Li , Jia-Le Zhang , Qi-Jian Zhang , Lin Zhang","doi":"10.1016/j.diamond.2025.112862","DOIUrl":"10.1016/j.diamond.2025.112862","url":null,"abstract":"<div><div>The structural and electronic attributes of C<sub>59</sub>X-CO (X = Al, B, N, P, and Si) and C<sub>54</sub>B<sub>3</sub>N<sub>3</sub>-nCO (<em>n</em> = 1–3) were scrutinized through self-consistent charge density functional tight-binding computations. Analysis of the calculated adsorption energies and net charge-transfer values reveals that the CO molecule exhibits a more robust interaction with B-doped fullerenes C<sub>59</sub>B than with those doped with Al, N, P, or Si. In C<sub>54</sub>B<sub>3</sub>N<sub>3</sub> configuration, the C atom of CO aligns perpendicularly to the N atom, and with the B atom's assistance, the formation of multiple B-C-N bond pairs is feasible, contingent upon the quantity of adsorbed CO molecules. Furthermore, it is observed that the electronic properties of both C<sub>59</sub>B and C<sub>54</sub>B<sub>3</sub>N<sub>3</sub> demonstrate heightened sensitivity to CO molecules, attributed to a notable reduction in their energy gaps. In addition, the hetero-fullerene C<sub>54</sub>B<sub>3</sub>N<sub>3</sub>, abundant in B and N atoms, enhances the capability for CO gas detection.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112862"},"PeriodicalIF":5.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154388","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

Carbyne enriched nanostructures for gas sensing applications: Synthesis and characterization 富碳纳米结构的气体传感应用：合成和表征

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-22 DOI: 10.1016/j.diamond.2025.112854

Mohamad-Anas Hejazi , Qing Zheng , Guowei Yang , Alexander Lukin , Caner Ünlü , Levent Trabzon

{"title":"Carbyne enriched nanostructures for gas sensing applications: Synthesis and characterization","authors":"Mohamad-Anas Hejazi , Qing Zheng , Guowei Yang , Alexander Lukin , Caner Ünlü , Levent Trabzon","doi":"10.1016/j.diamond.2025.112854","DOIUrl":"10.1016/j.diamond.2025.112854","url":null,"abstract":"<div><div>Among the various forms of carbon nanomaterials, one-dimensional sp-hybridized carbon, known as Carbyne, has been elusive and challenging to synthesize due to its chemical instability. Consequently, the properties of Carbyne have not been fully explored. Recent advancements have allowed the successful synthesis of finite-length Carbyne chains in the laboratory through novel techniques such as ion-assisted pulse plasma deposition (IA-PPD) and laser ablation in liquids (LAL). These methods produced hybrid nanostructures of sp<sup>3</sup> and sp<sup>2</sup> carbon enriched with Carbyne. In this work, we report the synthesis and characterization of these Carbyne nanostructures to gain a deeper understanding of their unique properties. Their potential as sensing materials in quartz crystal microbalance (QCM) sensors was examined for room-temperature pollutant detection. Characterization results revealed a higher concentration of Carbyne in the LAL samples compared to the IA-PPD samples, which corresponded to superior gas sensing performance. In tests with various analytes, LAL Carbyne exhibited greater selectivity for ammonia gas. The sensor demonstrated a moderate response time of 4.7 min with full recovery in approximately 9.3 min. However, compared to other available carbon materials, the sensitivity of Carbyne was found to be relatively low, highlighting the need for further research to optimize Carbyne synthesis and sensor fabrication.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112854"},"PeriodicalIF":5.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154468","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

Sustainable solvent-engineered carbon dots derived from Amaranthus campestris for photocatalytic antiretroviral drug degradation and luminophores in security inks for anti-counterfeit applications 从苋菜中提取的可持续溶剂工程碳点用于光催化抗逆转录病毒药物降解和防伪应用的安全油墨中的发光基团

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-22 DOI: 10.1016/j.diamond.2025.112860

T.K.S. Fayaz , Ashega Sherly Robinson , Priti Gupta , Pavithra Suresh , Komal Murugan , Arunkumar Thirugnanasambandam

{"title":"Sustainable solvent-engineered carbon dots derived from Amaranthus campestris for photocatalytic antiretroviral drug degradation and luminophores in security inks for anti-counterfeit applications","authors":"T.K.S. Fayaz , Ashega Sherly Robinson , Priti Gupta , Pavithra Suresh , Komal Murugan , Arunkumar Thirugnanasambandam","doi":"10.1016/j.diamond.2025.112860","DOIUrl":"10.1016/j.diamond.2025.112860","url":null,"abstract":"<div><div>Environmental issues are raised by the nucleoside reverse transcriptase inhibitor medicine emtricitabine (ETB), especially associated with its poor removal efficiency in traditional wastewater treatment facilities. Photocatalytic degradation presents itself as a promising technology for the breakdown of organic pharmaceuticals through the advanced oxidation process. This study explores the application of Eco-Sustainable <em>Amaranthus campestris-derived</em> Carbon dots (AC-CDs) as a light-activated photocatalyst for the abatement of antiretroviral ETB, emphasizing a more resilient and environmentally conscious approach. The specifically selected carbogenic source for the induction of AC-CDs formation is <em>Amaranthus campestris</em>, which exhibits adjustable luminescence upon exposure to both short and long UV light irradiation. The synthesized AC-CDs, exhibiting a quantum yield of 21.5 %, served as security fluorescent ink for anti-counterfeiting purposes. An efficiency of 55 % was achieved for the photocatalytic degradation of ETB within 75 min under optimal conditions. The kinetic behavior of the degradation adhered to a pseudo-first-order reaction, characterized by a rate constant of 0.01029 min<sup>−1</sup>. The findings from the scavenger studies indicate that hydroxyl radicals and the holes significantly contribute to the reduction of the drug. This study demonstrates that Eco-Sustainable-derived AC-CDs offer a viable and alternative approach for the reduction of ETBs in aqueous environments, with potential implications for wider applications in wastewater management and in anti-counterfeiting applications.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112860"},"PeriodicalIF":5.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109279","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

Investigating the effect of iodine treatment on the properties of mesophase pitch based carbon fibers 研究了碘处理对中间相沥青基碳纤维性能的影响

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-22 DOI: 10.1016/j.diamond.2025.112866

Khushboo Kumari , Sonu Rani , Pankaj Kumar , Sanjay R. Dhakate , Saroj Kumari

{"title":"Investigating the effect of iodine treatment on the properties of mesophase pitch based carbon fibers","authors":"Khushboo Kumari , Sonu Rani , Pankaj Kumar , Sanjay R. Dhakate , Saroj Kumari","doi":"10.1016/j.diamond.2025.112866","DOIUrl":"10.1016/j.diamond.2025.112866","url":null,"abstract":"<div><div>This study investigates the effect of iodine treatment on the microstructure and morphology of inhomogeneous mesophase pitch fibers containing a substantial amount of isotropic fraction to overcome hardships like fusion and brittle texture due to heterogeneity in the pitch. Initially, iodine was incorporated into the pitch fibers at different steps: (1) pitch fibers-oxidation, (2) pitch fibers-iodination, (3) pitch fibers-oxidation-iodination, and (4) pitch fibers-iodination-oxidation. All modified pitch fibers were then carbonized at 1000 °C. The results show that the iodine treatment at different stages significantly affected the properties of carbon fibers, with the best outcome observed when iodination was performed before the oxidation step. However, carbon fibers obtained from oxidized pitch fibers modified with iodine show pores and defects on the surface. Raman, EDAX, EPR, and TGA analyses have been employed to analyze the iodine adsorption on pitch fibers. Furthermore, the exposure time for the iodination of pitch fibers before oxidation was varied to investigate the effect on polymerization in molecules with the iodine curing process. It was observed that 1.5 h exposure of iodine to pitch fiber before stabilization enriches the polymerization reaction and improves the mechanical properties. It results in providing more flexibility and handleability to the resultant carbon fiber.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112866"},"PeriodicalIF":5.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154451","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

Engineering Cu(OH)₂-AgNP@MWCNT nanocomposite by systematically layering onto a glassy carbon substrate and application as an electrochemical sensor for the analysis of antidiabetic agent metformin 工程Cu（OH）₂-AgNP@MWCNT纳米复合材料，系统地分层在玻碳衬底上，并作为电化学传感器用于分析降糖药二甲双胍

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-22 DOI: 10.1016/j.diamond.2025.112867

Abdollah Yari, Shokooh Bahrami

{"title":"Engineering Cu(OH)₂-AgNP@MWCNT nanocomposite by systematically layering onto a glassy carbon substrate and application as an electrochemical sensor for the analysis of antidiabetic agent metformin","authors":"Abdollah Yari, Shokooh Bahrami","doi":"10.1016/j.diamond.2025.112867","DOIUrl":"10.1016/j.diamond.2025.112867","url":null,"abstract":"<div><div>In this study, a novel electrode was engineered by systematically layering a Cu(OH)₂-AgNP@MWCNT nanocomposite onto a glassy carbon substrate. The Cu(OH)<sub>2</sub>-AgNP@MWCNT electrode is a sensitive electrochemical sensor designed for the selective detection of metformin, a drug approved by the FDA, primarily used for managing high blood sugar levels in individuals with type 2 diabetes. It is applicable in both clinical and pharmaceutical environments. The characterization of the components was performed utilizing Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD). All electrochemical assessments were conducted utilizing cyclic voltammetry (CV), electrochemical impedance spectrometry (EIS), and differential pulse voltammetry (DPV). The electroactive surface area (ECSA) of the working electrode was determined, measuring 0.574 cm<sup>2</sup> compared to just 0.127 cm<sup>2</sup> for the unmodified electrode, suggesting greater efficiency and enhanced performance. The sensor exhibited two linear responses for metformin concentrations ranging from 0.02 to 2.0 μM and 2.0 to 100 μM, with limits of detections (LODs) established at 0.014 and 1.52 μM, respectively, and was successfully applied to the determination of metformin in real samples, yielding satisfactory results. The newly developed electrode's performance was evaluated in comparison to the HPLC method using a statistical F-test (<em>P</em> = 0.01). The findings demonstrated that the recovery rates from both methods were comparable and highlighted that the electrode's precision in response actually provides better accuracy than the HPLC technique for analyzing metformin in samples.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112867"},"PeriodicalIF":5.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109277","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

Efficient hydrothermal synthesis of carbon dots from argan cake and their applications 从摩洛哥坚果饼中高效水热合成碳点及其应用

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-22 DOI: 10.1016/j.diamond.2025.112861

Noumane Elouakassi , Abdelmajid Almaggoussi , Corneliu S. Stan , Marcel Popa , Larbi Belachemi , Jaafar Ghanbaja , Hamid Kaddami

{"title":"Efficient hydrothermal synthesis of carbon dots from argan cake and their applications","authors":"Noumane Elouakassi , Abdelmajid Almaggoussi , Corneliu S. Stan , Marcel Popa , Larbi Belachemi , Jaafar Ghanbaja , Hamid Kaddami","doi":"10.1016/j.diamond.2025.112861","DOIUrl":"10.1016/j.diamond.2025.112861","url":null,"abstract":"<div><div>Argan cake-based fluorescent carbon dots (CDs-CA) were successfully synthesized by a simple, environmentally friendly, one-step hydrothermal method at 180 °C for 12 h, using argan waste as a biobased precursor. The CDs obtained show intense blue fluorescence under 365 nm UV light. Several structural characterization techniques, including EDX, FTIR, electrokinetic titration, and NMR spectroscopy, were employed to study their chemical structures and identify the functional groups. The thermal properties of the CDs-CA were evaluated by TGA. TEM analysis confirmed their nanometric size, with an average size of 4.64 nm. Furthermore, the UV–vis spectroscopy and photoluminescence (PL) analysis were used to investigate the optical properties. These later showed an excitation-dependent PL behavior. Additionally, the fluorescence lifetime exhibits two decay time constants (τ<sub>1</sub> = 4.56 ns and τ<sub>2</sub> = 9.94 ns), and the average value (τ<sub>avg</sub> = 11.40 ns) suggests that surface functional groups primarily govern the emission. The synthesized CDs-CA were incorporated into PVA to form nanocomposite films (PVA@CDs-CA), which exhibited excellent mechanical properties at 2 wt% of CDs-CA. The CDs-CA were successfully applied in three areas. Firstly, as inks that are invisible to normal light but fluoresce under UV light, demonstrating their high potential for anti-counterfeiting applications, particularly in sensitive documents such as passports and banknotes. Then, as high-performance UV-blocking PVA nanocomposite films with a sun protection factor exceeding 50, while maintaining over 82 % visible transmittance. Finally, as a downshifting layer on silicon solar cells, it improves energy conversion efficiency from 11.45 % to 12.21 %.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112861"},"PeriodicalIF":5.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154455","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

The enhanced vertical heat transfer based on diamond/SiC ceramic composite substrates with TSV 基于TSV的金刚石/碳化硅陶瓷复合基板的增强垂直传热

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-21 DOI: 10.1016/j.diamond.2025.112856

Jiaxuan Wang, Li Gou

引用次数: 0

Enhancing photocatalytic efficiency and hydrogen production through oxygen-defective g-C3N4/Fe2O3 composites 氧缺陷g-C3N4/Fe2O3复合材料提高光催化效率和产氢率

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-20 DOI: 10.1016/j.diamond.2025.112851

K. Ashok , P. Rosaiah , Dhanalakshmi Radhalayam , Fatimah Ali M. Al-Zahrani , Maduru Suneetha

{"title":"Enhancing photocatalytic efficiency and hydrogen production through oxygen-defective g-C3N4/Fe2O3 composites","authors":"K. Ashok , P. Rosaiah , Dhanalakshmi Radhalayam , Fatimah Ali M. Al-Zahrani , Maduru Suneetha","doi":"10.1016/j.diamond.2025.112851","DOIUrl":"10.1016/j.diamond.2025.112851","url":null,"abstract":"<div><div>Photocatalytic hydrogen production and organic pollutant degradation offer promising solutions to global energy and environmental challenges. In this work, we report a facile thermal pyrolysis synthesis of an oxygen-deficient g-C₃N₄/Fe₂O₃ (CN/FeO) composite, which exhibits superior photocatalytic performance. The optimized CN/FeO-2 sample achieved 89.9 % degradation efficiency for crystal violet (CV) dye and a hydrogen evolution rate of 423 μmol g<sup>−1</sup> h<sup>−1</sup>, which are 1.4 and 2.92 times higher than pristine g-C₃N₄, respectively. The enhanced activity is attributed to improved visible-light absorption, increased surface area, and efficient charge separation induced by oxygen vacancies. Further enhancement was realized by Pt loading, yielding a 6.2-fold increase in H₂ production. Structural, optical, and electrochemical analyses—including PL, EIS, and EPR—confirmed reduced electron-hole recombination and enhanced interfacial charge transfer. The composite also demonstrated good stability and recyclability, making it a promising candidate for solar-driven photocatalytic applications.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112851"},"PeriodicalIF":5.1,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109273","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

Sensitivity optimization for lock-in detection in nitrogen-vacancy center-based magnetic sensing using resonance frequency tracking method 基于共振频率跟踪方法的氮空位中心磁敏锁定检测灵敏度优化

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-20 DOI: 10.1016/j.diamond.2025.112832

Yaowu Lei , Feng Zhou , Dong Li , Dezhi Chen , Haoliang Hu , Xiaofei Li , Zihao Ouyang , Yuhao Li , Chen Zuo , Junchang Huang

{"title":"Sensitivity optimization for lock-in detection in nitrogen-vacancy center-based magnetic sensing using resonance frequency tracking method","authors":"Yaowu Lei , Feng Zhou , Dong Li , Dezhi Chen , Haoliang Hu , Xiaofei Li , Zihao Ouyang , Yuhao Li , Chen Zuo , Junchang Huang","doi":"10.1016/j.diamond.2025.112832","DOIUrl":"10.1016/j.diamond.2025.112832","url":null,"abstract":"<div><div>The nitrogen-vacancy (NV) centers in diamonds, known for their exceptional sensitivity, spatial resolution, and temperature adaptability, exhibit excellent magnetic field sensing capabilities. To address the time-consuming feature of the frequency-sweeping method, the resonance frequency tracking (RFT) method, based on lock-in detection, has been proposed and widely employed for real-time magnetic field measurements. To further improve the accuracy of this method, this study reports a sensitivity optimization strategy designed to minimize the fluorescence shot-noise-limited sensitivity and the magnetic noise sensitivity. Specifically, based on an all-fiber optical lock-in detection system, we investigate the coupling effects between laser power and microwave power on the fluorescence shot-noise sensitivity and the impact of modulation parameters of lock-in detection on the magnetic noise sensitivity. Furthermore, both simulation and experimental approaches are employed to investigate the mechanisms for optimizing magnetic noise sensitivity under the influence of hyperfine coupling induced by the <sup>14</sup>N isotope. These results provide concrete sensitivity optimization measures for lock-in detection systems using the RFT method, which can be extended to other lock-in detection applications.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112832"},"PeriodicalIF":5.1,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109276","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

Hydrochar-derived activated carbon from chenopodium botrys for dual applications in dye removal and energy storage 从chenopodium瓶中提取的氢衍生活性炭在染料去除和能量储存方面的双重应用

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2025-09-19 DOI: 10.1016/j.diamond.2025.112834

Selma Ekinci , Erhan Onat , Abdulkadir Levent , Ramazan Astan

{"title":"Hydrochar-derived activated carbon from chenopodium botrys for dual applications in dye removal and energy storage","authors":"Selma Ekinci , Erhan Onat , Abdulkadir Levent , Ramazan Astan","doi":"10.1016/j.diamond.2025.112834","DOIUrl":"10.1016/j.diamond.2025.112834","url":null,"abstract":"<div><div>This study reports the synthesis of activated carbon from <em>Chenopodium botrys</em> biomass through two approaches: direct chemical activation (Cb-AC) and a two-step route involving hydrothermal pretreatment followed by chemical activation (Cb-HC-AC). Structural characterization confirmed that hydrothermal pretreatment introduced abundant oxygen functional groups and facilitated mesopore development. In methylene blue (MB) adsorption experiments, Cb-HC-AC exhibited a maximum capacity of 140.83 mg/g, significantly higher than that of Cb-AC (77.15 mg/g). Adsorption kinetics followed a pseudo-second-order model, while isotherm and thermodynamic analyses revealed that adsorption on Cb-HC-AC was endothermic and entropy-driven, in contrast to the exothermic behavior of Cb-AC. Furthermore, Cb-HC-AC demonstrated excellent electrochemical performance as a supercapacitor electrode, achieving a specific capacitance of 441 F/g at 0.2 A/g, 93 % retention after 5000 cycles, and an energy density of 16.94 Wh/kg. These results introduce <em>C. botrys</em> as a novel, sustainable precursor for multifunctional activated carbon and highlight the critical role of hydrothermal pretreatment followed by chemical activation in enhancing both adsorption and energy storage applications.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112834"},"PeriodicalIF":5.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145095850","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