Materials Research Bulletin最新文献

In-situ synthesis of Bimetallic MOFs-derived photocatalyst CuS/CdS/rGO and its application in PAM photodegradation 双金属mofs衍生光催化剂cu /CdS/rGO的原位合成及其在PAM光降解中的应用

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-23 DOI: 10.1016/j.materresbull.2025.113683

Zuchao Meng , Jingyuan Shao , Jinlin Qian , Jiahua Qi , Yu Hao , Min Yang

{"title":"In-situ synthesis of Bimetallic MOFs-derived photocatalyst CuS/CdS/rGO and its application in PAM photodegradation","authors":"Zuchao Meng , Jingyuan Shao , Jinlin Qian , Jiahua Qi , Yu Hao , Min Yang","doi":"10.1016/j.materresbull.2025.113683","DOIUrl":"10.1016/j.materresbull.2025.113683","url":null,"abstract":"<div><div>During the process of oil extraction, a large amount of polyacrylamide (PAM) is used. Subsequently, these PAMs are discharged into external water bodies along with the produced water, causing significant harm to the environment. In order to improve its removal efficiency, a CuS/CdS/rGO heterojunction was prepared via in-situ sulfidation of the CuCd-MOF/GO precursors synthesized through the hydrothermal method. The structural, morphological, and optical properties of the synthesized photocatalysts were comprehensively characterized using XRD, XPS, FTIR, SEM, BET, UV–vis DRS, PL, ESR, and Mott-Schottky analyses, respectively. The photocatalytic experiment results showed that the degradation rate of polyacrylamide (PAM) due to CuS/CdS/rGO (<em>n</em>[Cu/Cd]=7:3) within 120 min was 95.8 %, which was 1.40 and 1.99 times that of CuCd-MOF and CuCd-MOF/GO, respectively. The significant enhancement of the photocatalytic performance of CuS/CdS/rGO can be attributed to its high specific surface area, well-exposed active sites, and the synergistic effects among the components. These characteristics facilitate sufficient contact between photogenerated charge carriers and reactants within the porous structure, thereby effectively reducing the recombination of photogenerated electrons and holes, which in turn improves photocatalytic efficiency. Trapping experiments suggest that superoxide radical anions (·O<sub>2</sub><sup>-</sup>) and hydroxyl radicals (·OH) play a critical role in the piezocatalytic degradation of PAM. Additionally, five cycle studies verified that the CuS/CdS/rGO nanocomposite had adequate photostability. This work provides a new perspective to fabricate high-efficient photocatalysts used in relative wastewater treatment system.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113683"},"PeriodicalIF":5.3,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711655","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

TiO2/Ag hybrid filler with synergistic effect of dielectric modulation and photocharge generation in the natural rubber-based triboelectric nanogenerator 在天然橡胶基摩擦电纳米发电机中具有介电调制和光电产生协同效应的TiO2/Ag杂化填料

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-22 DOI: 10.1016/j.materresbull.2025.113682

Weeraya Bunriw , Viyada Harnchana , Chalathorn Chanthad , Walailak Kaeochana , Wimonsiri Yamklang , Jirapan Sintusiri , Prasit Thongbai , Vittaya Amornkitbamrung

{"title":"TiO2/Ag hybrid filler with synergistic effect of dielectric modulation and photocharge generation in the natural rubber-based triboelectric nanogenerator","authors":"Weeraya Bunriw , Viyada Harnchana , Chalathorn Chanthad , Walailak Kaeochana , Wimonsiri Yamklang , Jirapan Sintusiri , Prasit Thongbai , Vittaya Amornkitbamrung","doi":"10.1016/j.materresbull.2025.113682","DOIUrl":"10.1016/j.materresbull.2025.113682","url":null,"abstract":"<div><div>In this work, a sustainable triboelectric nanogenerator (TENG) is fabricated using natural rubber (NR) filled with TiO<sub>2</sub>/Ag hybrid nanoparticles. These TiO<sub>2</sub>/Ag nanoparticles are synthesized through a newly developed process to facilitate their dispersion within the NR polymer matrix, leading to a significantly improvement in the energy conversion efficiency of the TENG. The enhanced power output of the NR-TiO<sub>2</sub>/Ag TENG reaches a peak power density of 4.44 W/m<sup>2</sup>, which is 13 times greater than that of the pristine NR TENG. This improvement is ascribed to the synergistic effect of the photoelectric property of TiO<sub>2</sub> and the dielectric polarization modulated by the conductive Ag nanoparticles. The increase in dielectric interfacial polarization and photogenerated charge capability contribute to the enhanced triboelectric charge density. This work introduces a novel approach in material engineering for boosting the power output performance of TENG, crucial for development of versatile TENG applications for the next-generation technology.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113682"},"PeriodicalIF":5.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712955","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

Temperature-dependent grain boundary diffusion behavior of Nd-Dy-Al alloy in sintered Nd-Fe-B magnet Nd-Dy-Al合金在烧结Nd-Fe-B磁体中的晶界扩散行为

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-20 DOI: 10.1016/j.materresbull.2025.113670

Mingpeng Kou , Thi Mai Nguyen , Qing Feng , Shiying Chen , Liuxin Yang , Hongya Yu , Jiaying Jin , Zhongwu Liu

{"title":"Temperature-dependent grain boundary diffusion behavior of Nd-Dy-Al alloy in sintered Nd-Fe-B magnet","authors":"Mingpeng Kou , Thi Mai Nguyen , Qing Feng , Shiying Chen , Liuxin Yang , Hongya Yu , Jiaying Jin , Zhongwu Liu","doi":"10.1016/j.materresbull.2025.113670","DOIUrl":"10.1016/j.materresbull.2025.113670","url":null,"abstract":"<div><div>The diffusion temperature has shown significant effects on the microstructure and magnetic properties of the grain boundary diffusion (GBD) treated Nd-Fe-B magnets, but the underlying mechanism is still not quite clear. Here, the sintered Nd-Fe-B magnets were processed by GBD with Nd<sub>20</sub>Dy<sub>60</sub>Al<sub>20</sub> alloy as the diffusion source. After diffusion at 800 °C, 900 °C, and 950 °C, the magnets exhibit increased intrinsic coercivity from 924 kA/m to 1231 kA/m, 1346 kA/m, and 1163 kA/m, respectively. The microstructure analysis reveals two types of diffusion behavior for Dy element in the magnet during GBD, i.e. lattice diffusion and inter-grain diffusion. Lattice diffusion helps to form core-shell structured hard magnetic grains while inter-grain diffusion promotes the diffusion depth. These two types of diffusion can be modified by the diffusion temperature. At the diffusion temperature of 800 °C, Dy element tends to enter into the interior of the magnet along the grain boundary by inter-grain diffusion, but at 950 °C, it prefers to substitute Nd to enter into the grain by lattice diffusion. These two diffusion behaviors achieve a delicate balance at 900 °C, and both the effective diffusion depth and the desired thickness of the magnetically hardened shell can be realized, which results in the highest coercivity enhancement.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113670"},"PeriodicalIF":5.3,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703604","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 development of new low-cost and wear-resistant Fe48.1Mn18.0Ni9.8V9.1Al6.7Cr5.3Ti3.0 multi-component alloy via combinatorial design strategy 采用组合设计策略高效开发新型低成本耐磨fe481 mn18.0 ni9.8 v9.1 al6.7 cr5.3 ti3.0多组分合金

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-18 DOI: 10.1016/j.materresbull.2025.113669

Qing-Xiao Wu , Qun Zou , Bo Li , Ge-Mei Cai

{"title":"Efficient development of new low-cost and wear-resistant Fe48.1Mn18.0Ni9.8V9.1Al6.7Cr5.3Ti3.0 multi-component alloy via combinatorial design strategy","authors":"Qing-Xiao Wu , Qun Zou , Bo Li , Ge-Mei Cai","doi":"10.1016/j.materresbull.2025.113669","DOIUrl":"10.1016/j.materresbull.2025.113669","url":null,"abstract":"<div><div>Current wear-resistant HEAs are generally explored on the base of CrFeCoNi, in which Co is expensive and poses environmental risks, hindering their commercialization. Via diffusion strategy combining the empirical criteria, this work efficiently developed a new type of low-cost and wear-resistant multi-component alloy (MCA) with the composition of Fe<sub>48.1</sub>Mn<sub>18.0</sub>Ni<sub>9.8</sub>V<sub>9.1</sub>Al<sub>6.7</sub>Cr<sub>5.3</sub>Ti<sub>3.0</sub>. After solution treatment at 1000 ° C and then aged at 700 ° C, it indicates a dual bcc composite structure with fine and uniformly distributed grains. This alloy exhibits excellent hardness and wear resistance, with the hardness and wear rate of 790.2 HV and 1.106 × 10<sup>-5</sup> mm ³/N · m, respectively, superior to commercial SKH51. Its wear mechanism is ascribed to delamination wear and abrasive wear. This study provides a new idea for the development of wear-resistant high entropy alloys and demonstrates their enormous potential in engineering applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113669"},"PeriodicalIF":5.3,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695214","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

Highly efficient one-pot three-component synthesis of novel organoboron markers for diesel fuel 新型柴油用有机硼标记物的高效一锅三组分合成

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-18 DOI: 10.1016/j.materresbull.2025.113668

Nereida S. Campos-Medellín , Rosa M. Jiménez-Barrera , Horacio Reyes-Pérez , Emanuel Bojórquez-Quíntal , Eugenio Hernández-Fernández , Abner Esperanza-Norzagaray , Rodrigo Chan-Navarro , María C. García-López

{"title":"Highly efficient one-pot three-component synthesis of novel organoboron markers for diesel fuel","authors":"Nereida S. Campos-Medellín , Rosa M. Jiménez-Barrera , Horacio Reyes-Pérez , Emanuel Bojórquez-Quíntal , Eugenio Hernández-Fernández , Abner Esperanza-Norzagaray , Rodrigo Chan-Navarro , María C. García-López","doi":"10.1016/j.materresbull.2025.113668","DOIUrl":"10.1016/j.materresbull.2025.113668","url":null,"abstract":"<div><div>In the present work, four fluorescent organoboron esters have been prepared by a fast self-assembly-assisted synthesis, achieved in short reaction time. The resulting organoboron esters were elucidated by <sup>1</sup>H and <sup>11</sup>B NMR, as well as mass spectrometry, and for <strong>3</strong> was further confirmed by single-crystal diffraction method, where the solved crystal structure shows a tetracoordinate boron atom with a distorted tetrahedral geometry. The photophysical behavior of all derivatives was analyzed in a fresh solution, demonstrating the presence of negative solvatochromism. Additionally, phenylboronic acid derivative 2, featuring <em>tert</em>‑butyl groups, demonstrated superior photostability compared to their derivatives. Mass spectrometry analysis also indicated energetic stability of the molecular ion of compound <strong>4</strong>. Notably, compound <strong>2</strong> exhibited good solubility, high photostability, thermal decomposition above 200 °C and adequate emissive properties, making it a promising fluorescent dye for fuel marking applications. Its exceptional photostability, positions molecule <strong>2</strong> as a promising candidate for fuel marker applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113668"},"PeriodicalIF":5.3,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703603","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

Combining two biocompatible singlet oxygen generators into a potent photoactive agent: Graphene quantum dots-curcuma hybrid 将两个生物相容的单线态氧气发生器组合成一种强效光活性剂：石墨烯量子点-姜黄混合物

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-18 DOI: 10.1016/j.materresbull.2025.113667

Mila Milenković , Milica Budimir Filimonović , Gabriele Ciasca , Dušan Milivojević , Jovana Prekodravac Filipović , Marija Mojsin , Svetlana Jovanović , Biljana Todorović Marković

{"title":"Combining two biocompatible singlet oxygen generators into a potent photoactive agent: Graphene quantum dots-curcuma hybrid","authors":"Mila Milenković , Milica Budimir Filimonović , Gabriele Ciasca , Dušan Milivojević , Jovana Prekodravac Filipović , Marija Mojsin , Svetlana Jovanović , Biljana Todorović Marković","doi":"10.1016/j.materresbull.2025.113667","DOIUrl":"10.1016/j.materresbull.2025.113667","url":null,"abstract":"<div><div>As a cutting-edge treatment strategy, photodynamic therapy (PDT) utilizes light-sensitive compounds to selectively destroy target cells, offering extensive possibilities for managing numerous medical conditions, including bacterial infections and tumors. Graphene quantum dots (GQDs), zero-dimensional nanomaterials, possess unique properties that make them ideal for biomedical applications, including high dispersibility, biocompatibility, and luminescent emission. In this study, we synthesized GQDs and modified them by incorporating curcumin, a natural compound known for its antimicrobial properties. Both UV–Vis and infrared spectroscopies confirmed the formation of the hybrid material. AFM and DLS analyses revealed an increase in particle size and changes in zeta potential, indicating successful incorporation of curcumin. Notably, the modified GQDs exhibited enhanced singlet oxygen production under blue light irradiation, as proven with EPR spectroscopy and ABDA degradation, demonstrating their potential as a photosensitizer of a new generation for PDT.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113667"},"PeriodicalIF":5.3,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695213","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

Accelerated and cost-effective synthesis of NaFe0.5Mn0.5O2 layered oxide cathode material and performance evaluation in sodium-ion batteries NaFe0.5Mn0.5O2层状氧化物正极材料的快速高效合成及其在钠离子电池中的性能评价

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-17 DOI: 10.1016/j.materresbull.2025.113666

Buzaina Moossa , R․A․ Harindi Gayara , Ahsan Ishtiaq Qureshi , Muntaha Elsadig Siddig Ali , Talha Khan , Shahid Rasul , Ramazan Kahraman , Talal Mohammed Al Tahtamouni , R․A․ Shakoor

{"title":"Accelerated and cost-effective synthesis of NaFe0.5Mn0.5O2 layered oxide cathode material and performance evaluation in sodium-ion batteries","authors":"Buzaina Moossa , R․A․ Harindi Gayara , Ahsan Ishtiaq Qureshi , Muntaha Elsadig Siddig Ali , Talha Khan , Shahid Rasul , Ramazan Kahraman , Talal Mohammed Al Tahtamouni , R․A․ Shakoor","doi":"10.1016/j.materresbull.2025.113666","DOIUrl":"10.1016/j.materresbull.2025.113666","url":null,"abstract":"<div><div>Iron and manganese-containing O3-type layered oxides cathode materials are well known for their high specific capacity and operating voltages in sodium-ion batteries (SIBs). The layered oxides with multiple transition metal combinations are aimed to utilize the synergistic relation of the transition metals and bring out enhanced electrochemical performance. However, the popular methods of synthesis most often involve very long heat treatment periods. In this work, O3-type layered oxide material NaFe<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>2</sub> is developed using a facile sol-gel followed by microwave sintering, significantly shortening the synthesis duration. The structural characterization using X-ray diffraction confirms the structural phase purity of the synthesized material, while infrared spectroscopy confirms the various metallic bonds in the material. The microwave sintering has resulted in denser and finer microstructures of the material, as confirmed by the microscopy images. The electrochemical performance of the synthesized material has also been investigated in detail. The specific discharge capacity of the synthesized material is ∼<strong>120 mAh/g</strong>, comparable to the conventional sintered layered oxide material. This work provides insights into using the microwave-assisted synthesis technique for Sodium layered oxide battery material.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113666"},"PeriodicalIF":5.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680660","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

Oxygen vacancy-rich vanadium-oxide hole-injection layer for high-performance OLEDs 用于高性能oled的富氧空穴氧化钒注入层

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-17 DOI: 10.1016/j.materresbull.2025.113655

Soon-Gyu Lee , Ankhnybayar Batdelger , Hong-Gyu Park , Sang-Geon Park

{"title":"Oxygen vacancy-rich vanadium-oxide hole-injection layer for high-performance OLEDs","authors":"Soon-Gyu Lee , Ankhnybayar Batdelger , Hong-Gyu Park , Sang-Geon Park","doi":"10.1016/j.materresbull.2025.113655","DOIUrl":"10.1016/j.materresbull.2025.113655","url":null,"abstract":"<div><div>Vanadium oxide (VOₓ) has gained attention as a promising hole-injection-layer material for organic light-emitting diodes (OLEDs); however, few studies have investigated the influence of VO<sub>x</sub> impurities and oxygen vacancies on OLED performance. VO<sub>x</sub> thin films of varying thicknesses were deposited on glass/indium tin oxide substrates via thermal evaporation to investigate their wettability, chemical composition, and electronic properties. Water-contact-angle (WCA) measurements revealed a transition from moderately hydrophilic to superhydrophilic behavior as the VOₓ thickness increased from 0.5 nm to 3 nm, which is attributed to the formation of oxygen vacancies. X-ray photoelectron spectroscopy confirmed the presence of V⁴⁺ and V⁵⁺ oxidation states, with the highest V⁵⁺ concentration at 2 nm, suggesting optimal oxygen-vacancy formation. Ultraviolet photoelectron spectroscopy demonstrated a stable work function (∼4.78–4.80 eV) across all thicknesses, and valence-band maximum variations indicated vacancy-mediated electronic transitions. The findings suggest that VOₓ enhances charge-injection properties in organic light-emitting diodes by reducing the hole-injection barrier, highlighting its potential as an effective hole-transport-layer material.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113655"},"PeriodicalIF":5.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686008","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

Co-doped Bi2Fe4O9 microcrystals as potent peroxymonosulfate activator for efficient photocatalytic degradation of RhB 共掺杂Bi2Fe4O9微晶作为高效光催化降解RhB的过氧单硫酸盐活化剂

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-17 DOI: 10.1016/j.materresbull.2025.113665

Yuanchun Li, Enrong Zhang, Lingfeng Tang, Yong Fu, Simin Yin

{"title":"Co-doped Bi2Fe4O9 microcrystals as potent peroxymonosulfate activator for efficient photocatalytic degradation of RhB","authors":"Yuanchun Li, Enrong Zhang, Lingfeng Tang, Yong Fu, Simin Yin","doi":"10.1016/j.materresbull.2025.113665","DOIUrl":"10.1016/j.materresbull.2025.113665","url":null,"abstract":"<div><div>Co-doped Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> (BFCO) microcrystals with well-defined facets were successfully synthesized by a facile hydrothermal method. The microstructure, magnetic and photocatalytic activity of BFCO were systematically investigated. It was found that Co doping in Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> greatly varied the morphology of BFCO microcrystals from rods to cubes and induced an efficient photocatalytic degradation of RhB via PMS activation under visible light. The BFCO-3 microcrystals exhibited the highest photocatalytic activity, with 98.2 % of RhB degraded in 30 min (<em>k</em> = 0.137 min<sup>−1</sup>), 4.6 times higher than that of pure Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> (0.030 min<sup>−1</sup>). It was revealed that the Co doping led to a narrowed bandgap (<strong>1.75 eV</strong>), and effective separation of photo-generated electrons and holes in BFCO. And the abundant Fe<sup>2+</sup>and O<sub>v</sub> in BFCO also contributed to the remarkable photocatalytic PMS activation. Moreover, the sample possessed enhanced ferromagnetic property, making it highly attractive for magnetic recollecting in practical wastewater purification.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113665"},"PeriodicalIF":5.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670334","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

A stable and reusable Z-scheme ZnO/Ag2CO3 photocatalyst for efficient degradation of emerging water pollutants 一种稳定且可重复使用的Z-scheme ZnO/Ag2CO3光催化剂，用于高效降解新出现的水污染物

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-17 DOI: 10.1016/j.materresbull.2025.113663

Ping Huang , Wei Feng , Wenhui Li , Yuquan Zhuo , Ziwen Yang , Shuo Yang , Donglai Han

{"title":"A stable and reusable Z-scheme ZnO/Ag2CO3 photocatalyst for efficient degradation of emerging water pollutants","authors":"Ping Huang , Wei Feng , Wenhui Li , Yuquan Zhuo , Ziwen Yang , Shuo Yang , Donglai Han","doi":"10.1016/j.materresbull.2025.113663","DOIUrl":"10.1016/j.materresbull.2025.113663","url":null,"abstract":"<div><div>We report ZnO/Ag<sub>2</sub>CO<sub>3</sub> (Z/AC) p–n heterojunctions synthesized via a facile two-step method to enable Z-scheme charge transfer for enhanced photocatalysis performance. Integrated SEM, TEM, XRD, FT-IR, XPS and BET analyses show that ∼5 µm wurtzite-ZnO nanospindles (NSs) are uniformly decorated with 50–200 nm monoclinic-Ag<sub>2</sub>CO<sub>3</sub> nanoparticles (NPs), forming a rough, mesoporous heterojunction whose specific surface area increases from 1.82 to 13.78 m<sup>2</sup> g⁻¹. This microarchitecture narrows the optical band-gap from 3.09 to 2.88 eV, suppresses photoluminescence by ∼65.1 %, triples the transient photocurrent, and delivers markedly enhanced photocatalytic activity. The Z/AC-4 heterojunction demonstrates the highest photocatalytic activity, achieving 97.4 % for tetracycline (TC). Scavenger experiments reveal hydroxyl radicals (·OH), holes (h⁺) and superoxide radicals (·O<sub>2</sub><sup>⁻</sup>) as key contributors, with ·OH dominant; Notably, the Z/AC-4 photocatalyst maintains 73.4 % TC degradation efficiency after five cycles, demonstrating excellent structural stability and recyclability. This work provides mechanistic insight into Z-scheme-driven photocatalysis.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113663"},"PeriodicalIF":5.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680659","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