Materials Today Sustainability最新文献

{"title":"Enhanced dopamine detection using Ti3C2Tx/rGO/Pt ternary composite synthesized via microwave-assisted hydrothermal method","authors":"","doi":"10.1016/j.mtsust.2024.100996","DOIUrl":"10.1016/j.mtsust.2024.100996","url":null,"abstract":"<div><div>A novel electrochemical sensing platform for dopamine (DA) detection was developed by fabricating the ternary composite of Ti₃C₂T_x MXene (M) and reduced graphene oxide (rGO) with platinum nanoparticles (Pt NPs) through microwave-assisted hydrothermal heating. The exceptional electrical conductivity and rich surface chemistry of MXene provide abundant active catalytic sites for electrochemical reactions, while the large surface area of rGO facilitates ion and electron pathways. The integration of rGO in the MXene sheet, forming MXene-rGO (M_rGO) heterostructure composite, imparts long-term stability to the 2D heterostructure while providing additional electron pathways and significantly enhancing conductivity. Pt NPs synergistically increased the electrocatalytic activity of the electrochemical sensor's performance. Ternary nanocomposites were fabricated with different weight percentages (wt.%) of Pt NPs, ranging from 5 to 20. Characterizations of the samples (rGO, M, M_rGO, and 5–20 wt% Pt@M_rGO) were conducted through X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), Raman spectroscopy (RAMAN), and X-ray spectroscopy (XPS). Electrochemical evaluations of the samples were investigated in 0.1 M phosphate buffer solution (PBS) using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) analyses. The analysis revealed that the ternary composite with 5 wt% of Pt NPs (5% Pt@M_rGO) exhibited a uniform well-distribution of Pt NPs and the highest oxidation peak for DA oxidation in CV studies. The presence of metal nanoparticles, aided by the synergistic effects between the MXene and rGO, resulted in an excellent DA sensor with a 0.147 μM detection limit from 1 to 14 μM linearity range. The sensor demonstrated outstanding selectivity, reproducibility (RSD values of 8.10%), repeatability (RSD value of 2.46%) and, excellent stability over 14 days. In human urine samples, the sensor exhibited excellent DA recovery (88.62–110.65%). This study significantly advances the development of electrochemical sensors for DA detection by introducing a rapid, facile and, efficient method for fabricating ternary composites. The fabricated sensor exhibited high sensitivity, excellent selectivity, and robust electrochemical performance, offering valuable insights into human and behavioral health advancements.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358913","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":"Graphene oxide-containing chitosan@HKUST-1 beads with increased chemical stability for CO2 capture","authors":"","doi":"10.1016/j.mtsust.2024.100998","DOIUrl":"10.1016/j.mtsust.2024.100998","url":null,"abstract":"<div><div>HKUST-1 MOF was crystallized within chitosan matrix to form xerogel beads using an <em>in-situ</em> growth approach. Under mild conditions, CS@HKUST-1 xerogel beads exhibit high specific surface areas (S_BET) up to 923 m² g⁻¹. By further incorporating graphene oxide (GO) to form ternary CS-GO@HKUST-1 xerogel beads, the HKUST-1 MOF structure remained stable for up to two days in a water solution at room temperature, whereas the MOF powder and CS@HKUST-1 xerogel beads underwent significant framework collapse within a day. CO₂ adsorption measurements on these xerogel beads also show promising CO₂ uptakes, surpassing 2.5 mmol g⁻¹ at 298 K and 1 bar. Moreover, these composites could be regenerated for more than 10 cycles without any loss of quantity adsorbed.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142327486","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":"Novel MoS2-based heterojunction as an efficient and magnetically retrievable piezo-photocatalyst for diclofenac sodium degradation","authors":"","doi":"10.1016/j.mtsust.2024.101000","DOIUrl":"10.1016/j.mtsust.2024.101000","url":null,"abstract":"<div><div>It is a challenging and meaningful task to design a piezo-photocatalyst with excellent performance under mild mechanical stirring conditions rather than ultrasonic irradiation. Herein, a hydraulic-driven piezo-photocatalytic process was proposed, using MoS₂-based heterojunction as catalysts for diclofenac sodium (DCF) degradation. A magnetically retrievable MoS₂/TiO₂/Fe₃O₄ composite was designed and successfully prepared by a facile one-step solvothermal process. Among various heterojunction composites and pure MoS₂, the ternary composite MoS₂/TiO₂/Fe₃O₄ exhibited the strongest piezo-photocatalysis capability, with a DCF degradation efficiency of 99.6% and a pseudo-first-order rate constant of 0.733 min⁻¹. Additionally, the degradation efficiency of DCF was still up to 85.2% in 6 min after 5 cycles by MoS₂/TiO₂/Fe₃O₄. The ternary composite can be easily collected and separated using a magnet. There was an optimum hydraulic gradient value (0.45 s⁻¹) for DCF degradation. ^•OH played a major role in DCF degradation during the hydraulic-driven piezo-photocatalytic process. A satisfactory DCF degradation was found in the actual water media. The results verify the existence of a synergetic effect between piezo and photocatalytic processes. Thereupon, the hydraulic-driven piezo-photocatalysis can be an efficient, sustainable, and energy-saving process for water treatment.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142327487","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":"The deformation mechanism of low symmetric Ti–Pt intermetallic compounds containing high density of planar defects","authors":"","doi":"10.1016/j.mtsust.2024.100995","DOIUrl":"10.1016/j.mtsust.2024.100995","url":null,"abstract":"<div><div>Intermetallic compounds typically exhibit limited plastic deformation capacity due to challenges in activating dislocation slip and deformation twinning, coupled with a lack of alternative deformation mechanisms. Ti–Pt alloys are a prevalent type of intermetallic compound utilized in high-temperature shape memory alloys and as materials for energy applications in electric fields. However, they often exhibit poor deformation capability. Here, we prepared a low-symmetry intermetallic phase, Ti₄Pt₃, which demonstrates significant plastic deformation capability. This phase features a high density of parallel planar defects, resulting in an exceptionally large lattice periodicity perpendicular to these defects. Through in-situ scanning electron microscope compression tests, we observed substantial plastic deformation in this new phase. Analysis of the deformed Ti₄Pt₃ phase revealed that the dense planar defects create uniformly distributed sites of internal stress concentration, enabling a rapid increase in back stress within crystals. This phenomenon leads to notable lattice rotation and localized order-disorder transitions, both crucial mechanisms facilitating plastic deformation and enhancing deformation capacity. Our research underscores the potential of leveraging structural asymmetry to enable unconventional deformation mechanisms, thereby enhancing the plasticity of intermetallic materials.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359018","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":"Layered silicate PLS-3 with PREFER structure supported Pd nanoparticles: A recyclable catalyst for the synthesis of furfuryl ethyl ether","authors":"","doi":"10.1016/j.mtsust.2024.100994","DOIUrl":"10.1016/j.mtsust.2024.100994","url":null,"abstract":"<div><div>Supported Pd catalysts has found wide applications in reductive etherification of aldehydes. However, the synthesis of furfural-derived ethers on Pd catalysts has encountered great challenges because several side reactions such as over-hydrogenation of furan ring and decarbonylation always occur simultaneously under the reaction conditions. We herein reported the catalytic performance of Pd nanoparticles (∼4 nm) supported on the external surface of layered structured PLS-3 zeolite with narrow pore size (&lt;0.4 nm) and large external surface area (80–100 m²/g). The PLS-3 with Si/Al of 92 having total acid sites of 93 μmol/g showed satisfied ether selectivity. Pd nanoparticles located on the external surface showed better etherification selectivity than those confined in the framework, due to the less diffusion limitation of furfural acetal as an intermediate.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323975","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":"An adaptive and fast emulsion separation Janus membrane","authors":"","doi":"10.1016/j.mtsust.2024.100991","DOIUrl":"10.1016/j.mtsust.2024.100991","url":null,"abstract":"<div><div>Inspired by the capillary effect in nature (such as water transport in soils) and droplet-drive performance of Nepenthes, a new driving strategy for emulsion separation membrane based on the synergistic effect of capillary force and progressive wettability-induction force was proposed. It is prepared by a one-step, simple continuous, electrospinning process. By adjusting solutions and spinning parameters, the membrane obtains its capillary structure and progressive oleophilicity in one-step preparation. Attractively, the membrane shows separation efficiency and excellent permeability, with a flux of 384801 L m⁻² h⁻¹ bar⁻¹ for the oil-water mixture, and the little water content of less than 18 ppm. And for emulsions, the flux even reaches 50000 L m⁻² h⁻¹ bar⁻¹ and the separation efficiency reaches 99.95%. Furthermore, the membrane has excellent mechanical-stability: at 80 kPa transmembrane pressure, it can still effectively prevent water's penetration. Drawing inspiration from nature, the incorporation of capillary force and progressive wettability-induction force into the separation membrane as an additional dual emulsion separation driving force proves to be a highly effective and versatile approach. This method provides a way to solve the general flux-efficiency balance problem of oil-water separation and also provides a new strategy for the preparation of separation membranes for various purposes.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359016","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":"Lignin and its carbon derivatives: Synthesis techniques and their energy storage applications","authors":"","doi":"10.1016/j.mtsust.2024.100990","DOIUrl":"10.1016/j.mtsust.2024.100990","url":null,"abstract":"<div><div>Lignin, a complex phenolic polymer abundantly present in the papermaking and biofuel industries, stands out as a cost-effective, plentiful, and non-toxic material. In recent years, there has been significant interest in utilizing this green biopolymer for energy storage devices. This review thoroughly examines lignin structure, chemistry, and classification based on separation techniques. It then explores the most recent breakthroughs in creating carbon materials (nanosheets, nanofibers, spheres, composites, and 3D hierarchical porous carbon) from lignin, discussing its versatility in supercapacitors and batteries. Finally, this study highlights future materials and their prospects, the critical challenges which must be addressed while suggesting future research avenues for lignin-derived carbon materials in energy storage. By combining insights from different studies, this review aims to offer readers a thorough understanding of how lignin-derived carbon materials could play a crucial role in promoting sustainable energy solutions.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323974","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":"First-principles study of GeC/Ga2SO heterostructure as a potential direct Z-scheme photocatalyst for water splitting","authors":"","doi":"10.1016/j.mtsust.2024.100989","DOIUrl":"10.1016/j.mtsust.2024.100989","url":null,"abstract":"<div><div>The rational design of van der Waals heterostructure offers an effective avenue for improving the photocatalytic efficiency of individual two-dimensional materials, garnering extensive interest in recent years. Herein, the feasibility of GeC/Ga₂SO heterostructure as a photocatalyst for overall water splitting has been explored based on the first-principles calculations. Our findings reveal that the electronic bandstructure of GeC/Ga₂SO heterostructure can be engineered in staggered or straddling band alignment depending on stacking patterns. Particularly, in the GeC/Ga₂SO heterostructure with staggered band alignment, an intrinsic built-in electric field is established at the interface with the direction from GeC to Ga₂SO, facilitating the formation of a direct Z-scheme heterostructure. Also importantly, the band-edge positions of Z-scheme GeC/Ga₂SO heterostructure cross the water redox potentials, providing adequate driving force for both the reduction and oxidation reactions of water. Gibbs free energy calculations demonstrated that the photocatalytic overall water splitting can proceed spontaneously in the neutral environment (pH = 7) under light irradiation. Moreover, GeC/Ga₂SO heterostructure exhibits good thermal stability and a strong (magnitude in 10⁵ cm⁻¹) and broad (from visible to ultraviolet light) optical absorption. Finally, through applying the tensile strain, further enhancements in the optical absorption and carrier redox ability are achieved due to the favorable modulation in the bandgap. Therefore, all these features make GeC/Ga₂SO heterostructure show great potential in the application of photocatalytic water splitting.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359015","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":"Unlocking the potential of mixed-valence silver oxide for electrochemical valorization of 5-hydroxymethylfurfural into valuable products","authors":"","doi":"10.1016/j.mtsust.2024.100992","DOIUrl":"10.1016/j.mtsust.2024.100992","url":null,"abstract":"<div><div>The burgeoning interest in the electrocatalytic conversion of biomass-derived compounds, exemplified by 5-hydroxymethylfurfural (HMF), into economically valuable products underscores the significance of such studies. Within this context, the electrocatalytic oxidation of HMF into 2,5-diformylfuran (DFF) using the mixed-valence silver (I, III) oxide (AgO) as the catalyst is presented for the first time. A thorough investigation has been carried out to explore the complex factors influencing the electrochemical transformation of the HMF to DFF, involving applied potentials, reactant concentrations, and the significant implications of mass transfer phenomena. Under optimized conditions, DFF, one of the highest value-added intermediates, can be produced with selectivity as high as 54%. Additionally, a yield of 10.8 μmol cm⁻² h⁻¹ was obtained under mild basic condition. Another pivotal aspect of this work involves meticulously examining the reaction process, bolstered by a comprehensive analytical approach that integrates high-performance liquid chromatography (HPLC), and <em>operando</em> Raman spectroscopy. The amalgamation of <em>operando</em> Raman spectroscopy with advanced simulation techniques represents a novel endeavor, offering a groundbreaking pathway to unravel the complexities inherent in these compounds and contribute substantially to the understanding of HMF oxidation and its intermediates. By looking closely at the catalyst surface during the reaction, a valuable insight into the steps involved was developed, helping in proposing an in-depth reaction pathway.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142327485","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":"Thermoelectric devices with polymer/zeolite hybrid composite films for conversion of heat to electricity","authors":"","doi":"10.1016/j.mtsust.2024.100993","DOIUrl":"10.1016/j.mtsust.2024.100993","url":null,"abstract":"<div><div>Here we report that organic/inorganic hybrid composite films, consisting of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and zeolite Y (Zy), can efficiently convert heat to electricity in the horizontal device geometry. The PEDOT:PSS/Zy (PPZy) hybrid composite films were prepared from corresponding aqueous solutions at various Zy contents (up to 50 wt%). The PPZy solutions exhibited an increased viscous state with a maximum at Zy = 30 wt%, indicating strong interactions between PEDOT:PSS and Zy components. All devices with the PPZy composite films could convert heat to electricity and showed higher thermoelectric (TE) performances than those with the pristine PEDOT:PSS films. The TE devices with the PPZy films (Zy = 30 wt%) delivered an output power of 8.8 pW with a power factor of 0.76 μW/mK², which is ca. 20 times higher than those with the pristine PEDOT:PSS films. The flexible TE devices, which were fabricated on poly(ethylene naphthalate) (PEN) film substrates, exhibited robust TE performances even after 5000 bending cycles. The present approach of hybrid composite films based on zeolite particles may contribute to further TE performance improvement for flexible and wearable TE devices.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359017","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}