Materials Research Bulletin最新文献

{"title":"Effect of Cr substitution in ZnFe2O4 nanoparticles on the electron transfer at electrochemical interfaces","authors":"Mallikarjun Madagalam ,&nbsp;Mattia Bartoli ,&nbsp;Michele Rosito ,&nbsp;Nicola Blangetti ,&nbsp;Marco Etzi ,&nbsp;Elisa Padovano ,&nbsp;Barbara Bonelli ,&nbsp;Sandro Carrara ,&nbsp;Alberto Tagliaferro","doi":"10.1016/j.materresbull.2024.113191","DOIUrl":"10.1016/j.materresbull.2024.113191","url":null,"abstract":"<div><div>In this study, we explored the effect of Cr³⁺ substitution by partially and fully replacing Fe³⁺ in the normal spinel ZnFe₂O₄ crystal structure at electrochemical interfaces. The resulting ZnCrₓFe₂₋ₓO₄ nanomaterials exhibited an average particle size between 20 and 50 nm with a spherical morphology. The materials also demonstrated energy band gaps ranging from 2.1 to 3.1 eV X-ray diffraction (XRD) analysis confirmed that all the synthesized materials maintained a normal spinel structure, attributed to the octahedral site preference energy (OSPE) of Zn²⁺, Fe³⁺, and Cr³⁺ ions. Electrochemical performance assessments revealed that the ZnFe₂O₄-based sensor achieved a sensitivity of (37.8 ± 0.2) μA/mM with a kinetic rate constant of (13.1 ± 2.8) ms⁻¹, while the ZnCr₂O₄-based sensor exhibited a sensitivity of (32.4 ± 0.5) μA/mM and a kinetic rate constant of (3.73 ± 0.55) ms⁻¹ in the detection of paracetamol, whereas ZnCrFeO₄ sensor has produced the second-best sensitivity (35.7 ± 0.1 μA/mM) and the rate constant (4.53 ± 0.54 ms⁻¹) with the lowest limit of detection (1.94 ± 0.01 μM). These differences in electrochemical performance were correlated with the variations in the energy band gaps caused by the restructuring of the normal spinel structure. Our findings indicate that the ZnFe₂O₄ sensor has a higher potential for direct electron transfer, whereas the other sensors are more likely to facilitate surface-mediated electron transfer.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113191"},"PeriodicalIF":5.3,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660071","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}

{"title":"Interfacial coupling mechanism for efficient degradation of tetracycline by heteroatom iodine (I)-doped BiOBr under visible light: Efficacy and driving force","authors":"Longyan Cui ,&nbsp;Qingbang Yang ,&nbsp;Dongrun Xie ,&nbsp;Wenjin Zhou ,&nbsp;Lingyun Rong ,&nbsp;Zhilin Yang ,&nbsp;Qi Yang","doi":"10.1016/j.materresbull.2024.113192","DOIUrl":"10.1016/j.materresbull.2024.113192","url":null,"abstract":"<div><div>Studies on photocatalytic materials frequently focus on two pivotal metrics: the generation and separation capabilities of photoinduced charge carriers. In this context, we developed a diverse range of BiOBr_xI_1-x solid solutions (<em>x</em> = 1, 0.75, 0.50, 0.25, 0) via a simple room-temperature synthesis. The BiOBr_0.75I_0.25 solid solution demonstrated a remarkable degradation ability (up to 88.4 %) for tetracycline (TC) within a span of 60 min under visible light. This efficiency was attributed to enhanced light absorption within the visible region and improved segregation of photoinduced charges. A systematic study was performed to determine the influence factors of the degradation efficiency and the roles of different reactive species. A comprehensive photocatalytic mechanism was proposed on the basis of the results of X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations. Finally, theoretical calculations were integrated with liquid chromatography-mass spectrometry (LC-MS) results to propose a degradation pathway for BiOBr_0.75I_0.25.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113192"},"PeriodicalIF":5.3,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660074","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":"Efficient enhancement of piezo-catalytic activity of BaTiO3-based piezoelectric ceramics via phase boundary engineering","authors":"Luoping Yang ,&nbsp;Daen Zhao ,&nbsp;Tingting Du ,&nbsp;Qiaoji Zheng ,&nbsp;Dunmin Lin ,&nbsp;Xuemei He ,&nbsp;Mengjiao Liu ,&nbsp;Yuanming Chen ,&nbsp;Wei He","doi":"10.1016/j.materresbull.2024.113188","DOIUrl":"10.1016/j.materresbull.2024.113188","url":null,"abstract":"<div><div>Piezoelectric catalysis stemmed from lead-free piezoelectric ceramics is an emerging catalytic technology applied extensively in degradation of organic pollutants due to its low energy consumption and non-pollution. However, the dissatisfied catalytic efficiency of lead-free piezoelectric ceramics has constrained their further development and application. Herein, we employ ion doping to modulate the phase boundary construction of BaTiO₃-based piezoelectric ceramics (BaTi_(1-<em>_x</em>₎(Zr_1/3Sn_1/3Hf_1/3)<em>_x</em>O₃, BTZSH-<em>x</em>), and the degradation performances of organic dyes are explored to illuminate the piezo-catalytic mechanism. The ion doping alters the phase boundary of BaTiO₃ ceramics and a two-phase coexistence of rhombohedral-orthorhombic is achieved at room temperature in BTZSH-0.04 ceramic. Consequently, the BTZSH-0.04 ceramic exhibits an excellent degradation efficiency of rhodamine B with 97.27% in 60min and a high reaction rate constant of 0.056 min⁻¹ under ultrasonication which is 7.4 times more than that of pristine BaTiO₃. This work provides an advisable policy for constructing environmental-friendly piezoelectric materials with glorious piezo-catalytic activity.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113188"},"PeriodicalIF":5.3,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659076","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":"Zn2+-decorated porous g-C3N4 with nitrogen vacancies: Synthesis, enhanced photocatalytic performance and mechanism in degrading organic contaminants","authors":"Ruxue Ma ,&nbsp;Han Zheng ,&nbsp;Jing Wang ,&nbsp;Xiucheng Zheng ,&nbsp;Xiaoli Zhang ,&nbsp;Xinxin Guan","doi":"10.1016/j.materresbull.2024.113193","DOIUrl":"10.1016/j.materresbull.2024.113193","url":null,"abstract":"<div><div>Photocatalytic degradation is an effective and challenging strategy in purifying wastewaters containing organic pollutants. Thus, developing a suitable photocatalyst and clarifying the degradation mechanism are extremely worthwhile. In this work, Zn²⁺-decorated porous g-C₃N₄ with nitrogen vacancies (g-C₃N_4-δ) is prepared with the facile sonication-calcination method. Benefitting from the modified geometric structure and electronic properties, compared with g-C₃N_4-δ, the resulting composites deliver reduced micropore percentage, enhanced separation and migration of photogenerated carriers, narrowed band gap, and improved reducing capacity of photoinduced electrons, favoring the photocatalytic reaction. Particularly, Zn²⁺(2)-g-C₃N_4-δ (10 mg) displays the highest photocatalytic activity toward eliminating tetracycline (TC, 10 mg L^-1, 50 mL), and the degradation efficiency (63.9%) within 30 min is 3.4 times that of g-C₃N_4-δ (18.9%) irradiated by visible light. Moreover, the optimal composite demonstrates satisfactory recyclability and excellent universality. This study suggests a novel way to construct g-C₃N₄-based photocatalysts for efficiently degrading organic contaminants in water.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113193"},"PeriodicalIF":5.3,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659075","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":"Synthesis of molybdenum disulfide/covalent organic frameworks composite for efficient solar-driven hydrogen production and pollutant degradation","authors":"Guanglei Tan ,&nbsp;Zhengri Shao ,&nbsp;Dan Tang","doi":"10.1016/j.materresbull.2024.113187","DOIUrl":"10.1016/j.materresbull.2024.113187","url":null,"abstract":"<div><div>Covalent organic frameworks (COFs) are recently recognized photocatalysts with outstanding performance in photocatalysis. Typically, COFs exhibit significant hydrogen evolution activity in the presence of noble metal co-catalysts. Nevertheless, due to their insufficient availability and high cost, it is essential to replace noble metal co-catalysts with cost-effective and abundant alternatives. Herein, we have substituted noble metal co-catalyst with MoS₂ and designed MoS₂ linked hydrazone-based COF composite for exceptional photocatalysis. Various characterization techniques provide evidence that the MoS₂/COF composite has been successfully synthesized. The as-synthesized MoS₂/COF photocatalyst exhibited a hydrogen production rate of 115 µmol·g^‒1h^‒1 and achieved 98 % degradation of Rhodamine B (RhB) dye under visible light irradiation for 2 h The photoluminescence (PL) spectra show that the correlation between MoS₂ and COF improves charge carrier's separation rate and minimizes recombination, thereby enhancing photocatalytic activity. This study aims to broaden the application of hydrazone-based COFs composites in energy production and environmental remediation.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"182 ","pages":"Article 113187"},"PeriodicalIF":5.3,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651473","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":"Enhanced energy storage efficiency of lead lutetium niobate ceramics via Ba/La co-doping strategy","authors":"Lingfei Lv ,&nbsp;Fangping Zhuo ,&nbsp;Chao He ,&nbsp;Zujian Wang ,&nbsp;Rongbing Su ,&nbsp;Xiaoming Yang ,&nbsp;Xifa Long","doi":"10.1016/j.materresbull.2024.113185","DOIUrl":"10.1016/j.materresbull.2024.113185","url":null,"abstract":"<div><div>Dielectric ceramics have emerged as promising candidate materials for pulse capacitor system due to their exceptional thermal stability, mechanical properties, and energy storage capabilities. However, the potential of antiferroelectric ceramics based on Pb(Lu_1/2Nb_1/2)O₃ in pulse-power systems is hindered by their high phase transition switching field and low energy storage efficiency. Herein, to address these limitations, we propose a co-doping strategy involving Ba²⁺ and La³⁺ ions to enhance the energy storage efficiency while simultaneously preserving a high energy storage density. Through the co-doping approach, we observed remarkable improvements in the performance of the ceramics. In comparison to Ba²⁺-doped samples, the co-doped ceramics exhibit a 33 % increase in energy storage density and a 51 % increase in efficiency. Our findings offer valuable insights into enhancing the energy storage characteristics of other dielectric materials.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"182 ","pages":"Article 113185"},"PeriodicalIF":5.3,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651474","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 review on the development of perovskite based bifunctional electrocatalysts for oxygen electrodes in metal-air batteries","authors":"Shahar Yar Khan ,&nbsp;Tayyaba Noor ,&nbsp;Naseem Iqbal ,&nbsp;Zeeshan Ali","doi":"10.1016/j.materresbull.2024.113189","DOIUrl":"10.1016/j.materresbull.2024.113189","url":null,"abstract":"<div><div>Depletion of fossil fuels, climate change, and pollution are the major concerns nowadays. This has led scientists to research clean, renewable, safe, and sustainable technologies such as energy storage, conversion systems, and energy resources, including metal-air batteries (MABs), electrolyzers, and fuel cells. Oxygen reduction reaction (ORR) and oxygen evolution reactions (OER) are the two main reactions of these devices. These devices' practical application needs to be improved by two main reactions sluggish kinetics. Catalysts that increase the selectivity and rate of these reactions are the core of such technologies. Perovskite oxides (POs) are efficient electrocatalysts for energy applications due to their flexible structure, low cost, and high intrinsic activity. There are several ways to modify perovskites' inherent characteristics, improving their catalytic activity, including oxygen deficiency, B/A site substitution, Carbon support, Co catalyst incorporation, and layered perovskites. This review discusses different types of metal air batteries, perovskite oxides as a bifunctional catalyst, and synthesis techniques and strategies to improve the catalytic activities.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113189"},"PeriodicalIF":5.3,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659072","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":"Effect of graphite fillers on electrical and thermal conductivity in epoxy-based composites: Percolation behavior and analysis","authors":"Alina Madalina Darabut ,&nbsp;Yevheniia Lobko ,&nbsp;Yurii Yakovlev ,&nbsp;Miquel Gamón Rodríguez ,&nbsp;Petr Levinský ,&nbsp;Thu Ngan Dinhová ,&nbsp;Lucinda Blanco Redondo ,&nbsp;Milan Dopita ,&nbsp;Vladimír Kopecký Jr. ,&nbsp;Andrea Farkas ,&nbsp;Daria Drozdenko ,&nbsp;Vladimír Matolín ,&nbsp;Iva Matolínová","doi":"10.1016/j.materresbull.2024.113186","DOIUrl":"10.1016/j.materresbull.2024.113186","url":null,"abstract":"<div><div>This work investigated a method for producing epoxy-based composites using various graphite fillers, such as natural, synthetic, and thermally expanded graphite. The study aimed to determine the impact of the filler type, size, and volume fraction on the composites’ thermal and electrical conductivity. Results indicate that the percolation model accurately represents electrical and thermal conductivity behavior, with graphite fillers forming conductive clusters in the polymer matrix. The percolation threshold for electrical conductivity varies between 2.8 and 8.5 vol.%, while for thermal conductivity, it ranges from 5.0 to 18.0 vol.%, which is twice that of electrical conductivity. This observation is due to both the electron transfer tunneling effect and the necessity of higher filler content to facilitating effective phonon transport. Notably, composites filled with thermally expanded graphite exhibit lower percolation thresholds. Understanding percolation behavior facilitates the prediction and optimization of composites with specific electrical and thermal properties for diverse applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113186"},"PeriodicalIF":5.3,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660073","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":"Fe-doped SrZrO3 nanostructures as photocatalyst: Solid-state synthesis and UV-light driven eradication of thymol blue dye","authors":"Sanjay S Majani ,&nbsp;R.S. Sneha ,&nbsp;S.N.P. Jashida ,&nbsp;K Ambili ,&nbsp;Muzaffar Iqbal ,&nbsp;Indah Raya ,&nbsp;Shiva Prasad Kollur","doi":"10.1016/j.materresbull.2024.113184","DOIUrl":"10.1016/j.materresbull.2024.113184","url":null,"abstract":"<div><div>In this study, pristine and Fe-doped Strontium Zirconate (SZF₀ and SZF₁₀) nanophosphors were synthesized using a simple solid-state method. The structural and optical properties of the synthesized materials were extensively characterized using Powder X-ray Diffraction (PXRD), UV–visible spectroscopy, Raman spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), and Transmission Electron Microscopy (TEM). The PXRD analysis confirmed the multiple phase purity and crystallinity with #96–900–0228 (orthorhombic) and #96–153–8368 (cubic) of the samples, having calculated crystallite size of 22.2 nm for SZF₀ and 21.4 nm for SZF_10. UV-visible spectroscopy revealed the quenching of bandgap energies from 3.24 eV to 1.65 eV for effective UV-light absorption. Raman spectroscopy provided insights into the prominent vibrational modes (A_g, B₂ _g, and B₃ _g) and structural integrity of the doped and undoped samples. Morphological analysis through FESEM and EDAX affirmed the agglomerated cluster clubbed morphology and stated elements of the SZF₁₀ sample with particle size distribution averaging at 22.11 nm which was well aligned with PXRD results. Meanwhile, the TEM analysis confirms the same with high crystallinity. The photocatalytic activity of the synthesized SZF₁₀ sample was evaluated by degrading TB dye under various experimental conditions. The results show a prominent degradation rate of 81.04 % at the 90th minute. The same results were utilized in studying the kinetics of the degradation process which align with the 1st-order kinetics with k and R² values of 0.00737 and 0.98034, respectively. The influence of different parameters such as pH, catalyst dosage, and dye concentration on the degradation efficiency was systematically studied to obtain the optimum values.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113184"},"PeriodicalIF":5.3,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659074","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":"Optical temperature sensing properties of novel RE3+ (RE = Er, Ho) doped BaLa2Ti3O10 phosphors","authors":"Zhiyu Zhang ,&nbsp;Kai Li ,&nbsp;Jianing Liu ,&nbsp;Zhenyu Huang ,&nbsp;Qing Li ,&nbsp;Daiman Zhu","doi":"10.1016/j.materresbull.2024.113183","DOIUrl":"10.1016/j.materresbull.2024.113183","url":null,"abstract":"<div><div>A novel luminescent material of BaLa₂Ti₃O₁₀:RE³⁺ was synthesized by the high-temperature solid phase method, with a typical layered structure belonging to a special crystal system. Under the excitation of 980 nm, BaLa₂Ti₃O₁₀:4 %Er³⁺ exhibits characteristic emissions centered at 531 nm, 551 nm and 668 nm. It is noteworthy that the color of BaLa₂Ti₃O₁₀:3 %Ho³⁺ shows a strong green emission at 551 nm and a weak red emission near 664 nm, also represents adjustable yellow-green light with the change of 980 nm laser pumped powers. The optical temperature sensing properties were checked by employing different strategies, relating to the thermally-coupled-levels (TCLs) and nonthermally-coupled-levels (NTCLs). The results show that the maximum relative sensitivity of TCLs based on BaLa₂Ti₃O₁₀:Er³⁺ is 0.68 % K⁻¹ (305 K). Similarly, the maximum sensitivity of TCLs is 0.89 % K⁻¹ (313 K) in BaLa₂Ti₃O₁₀:Ho³⁺, which performs well from 313 K to 513 K. It has been found the samples using FIRs of TCLs can produce higher absolute (S_a) and relative (S_r) sensitivities compared with those using Fluorescence Intensity Ratios (FIRs) of NTCLs. The multiple FIRs also achieved superior levels of temperature resolution and repeatability in all cases. Generally, this work provides favorable candidates for the temperature sensors.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113183"},"PeriodicalIF":5.3,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659073","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}