Diamond and Related Materials最新文献

{"title":"Enhanced electrochemical performance and internal resistance dynamics of Zn-MOF-74/rGO composite cathode for aqueous zinc-ion batteries","authors":"Abdulhadi H. Al-Marri","doi":"10.1016/j.diamond.2026.113380","DOIUrl":"10.1016/j.diamond.2026.113380","url":null,"abstract":"<div><div>The development of high-performance aqueous zinc-ion batteries (AZIBs) requires cathode materials capable of combining fast Zn²⁺ transport, high electronic conductivity, and long-term structural stability. In this work, we report a Zn-MOF-74/rGO composite synthesized through a facile in-situ hydrothermal route, in which reduced graphene oxide (rGO) forms a conductive and mechanically robust framework within the MOF matrix. Structural analyses confirm that the incorporation of rGO preserves the crystalline integrity of the MOF-74 framework while significantly improving its textural properties and thermal stability. The resulting hybrid exhibits a high specific surface area (≈950 m² g⁻¹) and a hierarchical porous network that facilitates rapid Zn²⁺ diffusion. Electrochemical measurements reveal a remarkable enhancement in charge-storage performance: the composite delivers 291 mAh g⁻¹, superior rate capability, and excellent cycling stability with 94% capacity retention after 1000 cycles at 2.0 A g⁻¹. Dynamic charge internal resistance (DCIR) analysis further demonstrates reduced polarization and improved interfacial kinetics, confirming the key role of rGO in lowering internal resistance under various operating conditions. The synergistic interplay between the MOF-74 framework and the rGO network enables fast electrochemical kinetics, enhanced electronic pathways, and robust structural durability. This study provides new insights into DCIR evolution in MOF-based electrodes and highlights a promising strategy for designing next-generation high-power AZIBs.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113380"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185442","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}

{"title":"Detection of Escherichia coli using GMR integrated with L-histidine-linked Fe3O4/rGO magnetic nanoparticles","authors":"Layyinatus Shifa ,&nbsp;Zurnansyah ,&nbsp;Emi Kurnia Sari ,&nbsp;Nurul Imani Istiqomah ,&nbsp;Mercuryta Dewi Noviastuti ,&nbsp;Nugraheni Puspita Rini ,&nbsp;Julia Angel ,&nbsp;Tri Marji Atmono ,&nbsp;Kohji Nakamura ,&nbsp;Edi Suharyadi","doi":"10.1016/j.diamond.2026.113376","DOIUrl":"10.1016/j.diamond.2026.113376","url":null,"abstract":"<div><div><em>Escherichia coli</em> (<em>E. coli</em>) has been successfully detected using a giant magnetoresistance (GMR) chip as a transducer, employed with Fe₃O₄ and Fe₃O₄/reduced graphene oxide (rGO) nanoparticles as magnetic nanotag labels and L-Histidine (L-His) as a linker. The <em>E. coli</em> concentration was varied to investigate how different levels of <em>E. coli</em> affect the voltage signal generated by the GMR sensor. The nanoparticles were fabricated through a hybrid approach that employs a green synthesis method using plant extracts. The nanoparticles exhibit superparamagnetic behavior, which influences the detection quality of the labels. The result shows that the higher <em>E. coli</em> concentration results in a more substantial increase in the voltage signal. For the Fe₃O₄/rGO-His label, the voltage is 0.075, 0.131, and 0.173 V for <em>E. coli</em> variations of 1:1000, 1:100, and 1:10, respectively. The signal for Fe₃O₄/rGO-His label is more significant than that of Fe₃O₄-His due to the contribution of rGO which increases the binding of L-His and <em>E. coli</em>. Moreover, the result of the relative standard deviation shows an increase from 0.26% to 6.1% for Fe₃O₄-His and from 0.69% to 5.1% for Fe₃O₄/rGO-His, indicating an acceptable level of reproducibility in the sensor's detection.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113376"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185443","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}

{"title":"Design and synthesis of a PtNPs@GQDs nanocomposites and its anticancer effects on colorectal cancer","authors":"HuiLong Xie ,&nbsp;YongQin Wei ,&nbsp;JiaNi Xiong ,&nbsp;ChengYan Wang ,&nbsp;GuoCong Guo ,&nbsp;JieMing Xie","doi":"10.1016/j.diamond.2026.113389","DOIUrl":"10.1016/j.diamond.2026.113389","url":null,"abstract":"<div><div>Platinum-based chemotherapy for colorectal cancer is limited by severe nephrotoxicity and drug resistance. To address this, we synthesized a novel platinum nanoparticle-graphene quantum dot nanostructure (PtNPs@GQDs), characterized by excellent water solubility, stability, and high catalytic/reductive activity. In vitro, PtNPs@GQDs demonstrated potent growth inhibition of colon cancer cells at low platinum concentrations (&lt;1.6 μg Pt/mL) and significantly induced apoptosis. In vivo, PtNPs@GQDs (8.2 and 12.4 mg Pt/kg) markedly suppressed tumor growth in HT-29 xenograft mice. These findings highlight PtNPs@GQDs as a promising new chemotherapeutic agent for colorectal cancer.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113389"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185444","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}

{"title":"Citric acid and thiourea functionalized activated carbon for efficient removal of anionic and cationic dyes: A combined experimental and DFT approach","authors":"Hamza Megherbi ,&nbsp;Aghilas Brahmi ,&nbsp;Faïza Diaba ,&nbsp;Abdelbaki Reffas","doi":"10.1016/j.diamond.2026.113353","DOIUrl":"10.1016/j.diamond.2026.113353","url":null,"abstract":"<div><div>Activated carbon (AC) is known for its excellent adsorption, which can be improved by surface and inner modification. This study investigates three key points. First, the effect of phosphoric acid impregnation (30, 60, 100, and 150 wt%) on crystallinity, surface chemistry, thermal stability, and adsorption of Methylene blue (MB) and Orange G (OG). TGA, XRD, and FT-IR results showed that phosphoric acid enhanced thermal stability, decreased crystallinity, and increased surface functional groups. These structural and chemical changes led to significant increases in adsorption capacity, from 77.126 to 514.405 mg/g for MB at pH 10 and from 16.813 to 254.900 mg/g for OG at pH 2.</div><div>Second, the effect of surface and internal modifications using Citric acid (C-ACs) and Thiourea (T-ACs) on activated carbon, including its elemental composition and morphology, were investigated through FTIR, XPS, and SEM-EDS analyses. The successful introduction of new surface functionalities was confirmed by the emergence of thiocarbonyl (HN–C=S) groups after Thiourea modification and ester (O–C=O) groups following Citric acid treatment. After modification, the adsorption capacity of OG slightly decreased to 239.029 mg/g at pH 2, whereas MB adsorption capacity further increased, reaching 536.600 mg/g at pH 10.</div><div>Finally, Density Functional Theory (DFT) and Non-Covalent Interaction (NCI) analyses provided molecular-level insight into the adsorption mechanism, demonstrating that MB exhibits higher reactivity than OG due to its lower energy gap and stronger interactions with electron-rich surface sites. π–π stacking was identified as the dominant interaction, supported by electrostatic forces, hydrogen bonding, and van der Waals interactions.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113353"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036662","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}

{"title":"Investigating the ultimate PcV performance of diamond-modified silicon carbide seal rings in high-load, high-speed water environments","authors":"Chengye Yang ,&nbsp;Hui Song ,&nbsp;He Li ,&nbsp;Shihao Yang ,&nbsp;Yuanyuan Mu ,&nbsp;Wubo Chu ,&nbsp;Xinbiao Mao ,&nbsp;Nan Jiang ,&nbsp;Kazuhito Nishimura","doi":"10.1016/j.diamond.2026.113441","DOIUrl":"10.1016/j.diamond.2026.113441","url":null,"abstract":"<div><div>Premature failure of SiC seal rings, manifesting as leakage under high-load, high-speed operation, represents a critical barrier to achieving the ultra-high reliability and extended service life required by advanced sealing systems. To suppress wear-induced failure, this study deposits a conformal microcrystalline diamond (MCD) coating on the sealing-ring end face by hot-filament chemical vapour deposition (HFCVD). Furthermore, a systematic comparative investigation was conducted to elucidate the interfacial frictional behaviour of diamond-modified seal-ring couples relative to the SiC-SiC pairing. Comprehensive tribological assessment reveals that the MCD–MCD sealing couple attains the optimum overall performance when benchmarked against both the SiC–SiC and MCD–SiC configurations. Specifically, the SiC–SiC couple exhibited an ultimate P_cV limit of 4.17 MPa·m s⁻¹, a steady-state friction coefficient of 0.138, and a specific wear rate of 1.53 × 10⁻⁸ mm³ N⁻¹ m⁻¹. In contrast, the ultimate P_cV value of the MCD-SiC seal pair reaches 75.3580 MPa·m s⁻¹, alongside a friction coefficient of 0.013 and a wear rate of 1.22 × 10⁻⁸ mm³/(N·m). Notably, the ultimate P_cV value of the MCD-MCD seal pair reaches 84.2919 MPa·m s⁻¹, with a friction coefficient as low as 0.003 and a wear rate of 0.55 × 10⁻⁸ mm³/(N·m), which is significantly superior to those of the SiC-SiC and MCD-SiC counterparts. Further mechanistic analysis indicates that under high-load and high-rotational-speed conditions, the lubrication state at the frictional interface of the seal rings undergoes dynamic evolution, specifically a continuous transition from hydrodynamic lubrication through boundary lubrication to incipient dry sliding. Specifically, the SiC-SiC mating pair fails rapidly due to high interfacial adhesion; the MCD-SiC pair suffers from severe abrasive wear at the interface; in contrast, the MCD-MCD pair maintains high stability at the frictional interface, retaining low adhesion and minimal interfacial damage under the lubrication effect of the dual‑carbon low-friction interface. In this study, under water lubrication conditions, the MCD-MCD tribopair exhibits a significantly higher ultimate P_cV value than the data reported in previous studies. This work is the first to systematically elucidate the lubrication behaviour evolution and failure mechanisms of diamond-coated seal rings under high-load and high-speed water environments. These findings provide critical experimental evidence and theoretical support for the high-performance design of deep-sea mechanical seals.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113441"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185256","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}

{"title":"Rational design of Ag-CuFe2O4/rGO heterojunction nanocomposite for efficient organic azo-dye degradation and mechanistic pathways toward Environmental Remediation","authors":"Sorapong Pavasupree ,&nbsp;Paramasivam Shanmugam ,&nbsp;Ranjith Rajendran ,&nbsp;Lalitha Gnanasekaran ,&nbsp;Supakorn Boonyuen ,&nbsp;Thammasak Rojviroon ,&nbsp;Orawan Rojviroon","doi":"10.1016/j.diamond.2026.113386","DOIUrl":"10.1016/j.diamond.2026.113386","url":null,"abstract":"<div><div>The fashion industry today utilizes a wide variety of dyes, raising global concerns about their toxicity, carcinogenic properties, and potential for bioaccumulation. In light of these issues, researchers are increasingly focusing on a diverse range of photocatalysts for the effective remediation of dyes. In this research, the synthesis of Ag-CuFe₂O₄/rGO nanocomposites is achieved through a hydrothermal method followed by an ultrasonication method. Various analytical techniques were used to analyze the prepared samples, such as XRD, FTIR, SEM, EDS, elemental mapping, HRTEM, and UV–Vis analyses. Results indicated successful decoration of silver nanoparticles (Ag NPs) and CuFe₂O₄ on 2D reduced graphene oxide (rGO) nanosheets. The fabricated interfacial binary heterostructure demonstrated effective photocatalytic capabilities for the remedy of mixed dye pollutants when exposed to UV–visible light. Factors such as a broad range of light absorption, efficient charge separation, and swift charge transport enhanced the photocatalytic performance of these heterostructures. The optimized Ag-CuFe₂O₄/rGO nanocomposites achieved impressive degradation efficiencies of 96.27%, 97.27%, and 93.73% for Methylene blue (MB) and Rhodamine B, and MB and RhB mixed dyes, respectively. Additionally, the study explored the tentative photocatalytic mechanism, conducted scavenger experiments, and assessed the recyclability and stability of the nanocomposites. These findings highlighted that hydroxyl radical (^•OH) species significantly contribute to the photocatalytic degradation process under UV–visible light illumination. Overall, Ag-CuFe₂O₄/rGO nanocomposites demonstrate strong potential for efficiently degrading organic azo-dyes in industrial wastewater and promoting environmental cleanup.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113386"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185251","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}

{"title":"Ultralight and multidimensional chitosan-based aerogel composites with an enhanced microwave absorption performance","authors":"Mahdieh Dehghani-Dashtabi,&nbsp;Hoda Hekmatara,&nbsp;Masoud Mohebbi","doi":"10.1016/j.diamond.2026.113333","DOIUrl":"10.1016/j.diamond.2026.113333","url":null,"abstract":"<div><div>Porous polymer aerogels are emerging as the next generation of electromagnetic wave (EMW) absorbers due to their low density, adaptability, environmental friendliness, broad bandwidth and high dielectric loss. In this study, different ratios (35, 50 and 75 wt%) of MoSe₂/MWCNT/MMT nanocomposites which were named as C2-C4 and MWCNT-free was named as C1 were incorporated into the chitosan matrix as filler with different weight ratios to chitosan and the ultralight and multidimensional MoSe₂/MWCNT/MMT-Chitosan aerogels were prepared via freeze-drying. MoSe₂/MWCNT/MMT (50 wt%)-Chitosan (C3) composite was the optimized sample exhibiting the highest reflection loss of −84.40 dB at a thickness of 2.6 mm, with a remarkable bandwidth of 10 GHz covering the entire X and Ku bands. This exceptional performance is attributed to the synergistic effects of various loss mechanisms, including the conduction loss facilitated by Multi-walled carbon nanotube) MWCNT(, the dipole and interfacial polarizations created by MoSe₂ and Montmorillonite) MMT(, and the multiphase activity due to the polygonal porous morphology. Notably, this high microwave absorption efficiency is achieved without magnetic components, offering significant potential for the design of advanced, lightweight, stable, and high-performance microwave absorbers. The radar cross-section (RCS) and far-field measurements demonstrated that coating a perfect electric conductor (PEC) sphere with each composite of C1, C2 and C3 led to a pronounced attenuation effect, achieving reductions of about 30–48 dB in RCS and 18 dB in the scattered far-field intensity.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113333"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075440","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}

{"title":"Iron and cobalt co-doped ZnO nanoparticles grafted over CNTs: An efficient electrochemical probe for the detection of paracetamol","authors":"Sajid Ali Madni ,&nbsp;Abid Ali ,&nbsp;Murat Kaleli ,&nbsp;Salih Akyürekli ,&nbsp;Mashael M. Alharbi ,&nbsp;Nadiah Al-Mutlaq ,&nbsp;Imene Bayach ,&nbsp;Amel Y. Ahmed","doi":"10.1016/j.diamond.2026.113367","DOIUrl":"10.1016/j.diamond.2026.113367","url":null,"abstract":"<div><div>Acetaminophen (paracetamol), a widely used analgesic and antipyretic, requires precise and sensitive detection for pharmaceutical and clinical applications. Iron and Cobalt (Fe/Co) co-doped ZnO@CNTs nanocomposites, synthesized via a precipitation method has been developed for the electrochemical detection of acetaminophen. These nanocomposites were doped with equimolar amount of Fe/Co with the concentrations of 1%, 5%, and 10% to optimize the electrocatalytic performance of nanocomposites (ZnO@CNTs). Characterization using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) Energy-Dispersive X-ray Spectroscopy (EDX), and X-ray Diffraction (XRD) and Raman spectroscopy confirmed the successful metallic doping and uniform dispersion within the composite matrix. While, electrochemical studies, including cyclic voltammetry (CV), scan rate analysis, and chronoamperometry, revealed that the 1% doped concentration achieved the lowest limit of detection (LOD), significantly enhancing electron transfer kinetics and sensitivity for acetaminophen detection. 1% Fe/Co doped ZnO@CNT showed lowest LOD of 0.045 μM with high sensitivity of 1.862 μA mM⁻¹ cm⁻². The Fe/Co-doped ZnO@CNTs nanocomposites demonstrated outstanding sensitivity, stability, and reproducibility, underscoring their potential for practical acetaminophen analysis.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113367"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075441","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}

{"title":"A novel fabrication method of small arc-shaped CVD diamond roller wheel using mechanical grinding truing and femtosecond laser sharpening","authors":"Longzhou Dai ,&nbsp;Zhengchao wan ,&nbsp;Mingjun Zhang ,&nbsp;Genyu Chen ,&nbsp;Cong Mao ,&nbsp;Yuanqiang Luo ,&nbsp;Weidong Tang ,&nbsp;Bo Cheng","doi":"10.1016/j.diamond.2026.113369","DOIUrl":"10.1016/j.diamond.2026.113369","url":null,"abstract":"<div><div>The small arc-shaped CVD diamond roller wheel has broad application prospects in the preparation of micro-structured cutting tools. However, CVD diamond material has good wear resistance, which makes it extremely difficult to dress its small arc-shaped profile. In this work, the oblique line interpolation tangential envelope method is proposed to dress the small arc-shaped CVD diamond roller wheel. This method utilizes the squeezing contact points of two rotating wheels on the dressing path to form the required small arc-shaped profile. This can simultaneously avoid uneven loss of the tool wheel and interference with the installation accuracy of the machine tool, improving the dressing precision of arc-shaped profile. The profile errors caused by different machine tool motion axis are analyzed. The corresponding profile error prediction models have been established. In order to improve the truing accuracy of CVD diamond roller wheel, a segmented arc compensation method is proposed. Finally, femtosecond laser processing technology is used to achieve sharpening of CVD diamond roller wheel. The abrasive particles have a suitable blade height to facilitate the excellent grinding performance of the roller wheel.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113369"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075802","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}

{"title":"Multifunctional S–g–C₃N₄/Fe–ZnO photocatalysts for visible-light-induced pollutant degradation and hydrogen evolution","authors":"Chandrakanta Mishra ,&nbsp;Swagatika Sahoo ,&nbsp;Manamohan Tripathy ,&nbsp;Soumyaranjan Senapati ,&nbsp;Dayananda Sarangi ,&nbsp;Sandip Padhiari","doi":"10.1016/j.diamond.2026.113354","DOIUrl":"10.1016/j.diamond.2026.113354","url":null,"abstract":"<div><div>The development of multifunctional photocatalyst capable of simultaneously addressing environmental pollution and clean energy production is of great importance. In this work, sulfur-doped graphitic carbon nitride (S-CN) and Fe-doped ZnO (FZ) were first synthesized individually, followed by the fabrication of a series of S-CN/FZ composites with varying loadings (5, 10, 15, and 20 wt% of FZ). Notably, this designed dual-doped type-II heterojunction integrates photocatalytic oxidation, reduction, and hydrogen evolution within a single visible light responsive system. The structural, morphological, and optical properties of the prepared materials were systematically characterized using XRD, FTIR, XPS, FESEM-EDX, PL, and UV–Vis DRS, PL, and electrochemical analyses, confirming the successful formation of heterojunctions and enhanced visible-light absorption. Among all the composites, S-CN/15FZ exhibited superior photocatalytic activity, achieving rapid reduction of 4-nitrophenol (96.3%) and efficient degradation of tetracycline hydrochloride (94.7%) under visible light irradiation. Furthermore, the optimized heterostructure demonstrated remarkable performance in photocatalytic H₂ evolution (5402.91 μmol g⁻¹ h⁻¹), surpassing that of the pristine components. The enhanced activity is attributed to the synergistic effects of S and Fe dual doping, which are responsible for tailoring the band structure and promoting the charge transfer across the S-CN/FZ interface. This study highlights the potential of S-CN/FZ heterostructures as promising candidates for multifunctional photocatalysis in environmental remediation and sustainable energy applications.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113354"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036772","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}