Advanced Powder Materials最新文献

{"title":"Electrolyte-independent and sustained inorganic-rich layer with functional anion aggregates for stable lithium metal electrode","authors":"Xiaoyi Wang ,&nbsp;Zhendong Li ,&nbsp;Qinhao Mao ,&nbsp;Shun Wu ,&nbsp;Yifei Cheng ,&nbsp;Yinping Qin ,&nbsp;Zhenlian Chen ,&nbsp;Zhe Peng ,&nbsp;Xiayin Yao ,&nbsp;Deyu Wang","doi":"10.1016/j.apmate.2024.100261","DOIUrl":"10.1016/j.apmate.2024.100261","url":null,"abstract":"<div><div>Lithium (Li) metal batteries (LMBs) featuring ultrahigh energy densities are expected as ones of the most prominent devices for future energy storage applications. Nevertheless, the practical application of LMBs is still plagued by the poor interfacial stability of Li metal anode. Inorganic-rich interlayer derived from anion decomposition in advanced liquid electrolytes is demonstrated as an efficient approach to stabilize the Li metal anode, however, is electrolyte-dependent with limited application conditions due to inappropriate electrolyte properties. Herein, an efficient structuration strategy is proposed to fabricate an electrolyte-independent and sustained inorganic-rich layer, by embedding a type of functional anion aggregates consisting of selected anions ionically bonded to polymerized cation clusters. The anion aggregates can progressively release anions to react with Li⁺ and form key components boosting the structural stability and Li⁺ transfer ability of the artificial layer upon cycling. This self-reinforcing working mechanism endows the artificial layer with a sustained inorganic-rich nature and promising Li protective ability during long-term cycling, while the electrolyte-independent property enables its applications in LMBs using conventional low concentration electrolytes and all-solid-state LMBs with significantly enhanced performances. This strategy establishes an alternative designing route of Li protective layers for reliable LMBs.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 1","pages":"Article 100261"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced photoelectric and thermoelectric coupling factor in BiMn2O5 ferroelectric film","authors":"Aohan Xu ,&nbsp;Chong Guo ,&nbsp;Weiqi Qian ,&nbsp;Chris R. Bowen ,&nbsp;Ya Yang","doi":"10.1016/j.apmate.2024.100260","DOIUrl":"10.1016/j.apmate.2024.100260","url":null,"abstract":"<div><div>Ferroelectric film materials have attracted significant interest due to their potential for harvesting various forms of clean energy from natural environmental sources. However, the photoelectric performance of these materials is frequently constrained by heat generation during light absorption, resulting in significant thermal losses. Most of ferroelectric films produce photocurrent and thermocurrent with opposite polarity, thus weakening the coupled photo-thermoelectric output of the devices. Here we report on a LaNiO₃/BiMn₂O₅(BMO)/ITO ferroelectric film to produce photocurrent and thermocurrent with the same polarity. The polarity of the photocurrent generated by the BMO film is shown to be determined solely by the direction of spontaneous polarization, overcoming the detrimental effect of Schottky barrier for energy harvesting in device. We propose a new strategy to enhance the coupling factor, thereby offering valuable new insights for optimizing the utilization of ferroelectric materials in both light and heat energy applications.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 1","pages":"Article 100260"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MA-activated lattice shrinkage and bandgap renormalization advancing the stability of FA1-xMAxPbI3 (x=0–1) perovskites photovoltaic","authors":"Congtan Zhu ,&nbsp;Xueyi Guo ,&nbsp;Si Xiao ,&nbsp;Weihuang Lin ,&nbsp;Zhaozhe Chen ,&nbsp;Lin Zhang ,&nbsp;Hui Zhang ,&nbsp;Xiangming Xiong ,&nbsp;Ying Yang","doi":"10.1016/j.apmate.2024.100264","DOIUrl":"10.1016/j.apmate.2024.100264","url":null,"abstract":"<div><div>Generally, referring to the stability of perovskite, the most studied perovskite material has been MA-free mixed-cation perovskite. The precise role of MA in the light-thermal-humid stability of perovskite solar cells still lacks of a systematically understanding. In this work, the evolution of crystallographic structures, intermediate phase, ultrafast dynamics, and thermal decomposition behavior of MA-mixed perovskite FA_1-<em>x</em>MA_<em>x</em>PbI₃ (<em>x</em>=0–100%) are investigated. The influence of MA on the stability of devices under heat, light, and humidity exposure are revealed. In the investigated compositional space (<em>x</em>=0–100%), device efficiencies vary from 19.5% to 22.8%, and the light, thermal, and humidity exposure stability of the related devices are obviously improved for FA_1-<em>x</em>MA_<em>x</em>PbI₃ (<em>x</em>=20%–30%). Incorporation 20%–30% of MA cations lowers nucleation barrier and causes a significant volume shrinkage, which enhances the interaction between FA and I, thus improving crystallization and stability of the FA_1-<em>x</em>MA_<em>x</em>PbI₃. Thermal behavior analysis reveals that the decomposition temperature of FA_0.8MA_0.2PbI₃ reaches 247 ​°C (FAPbI₃, 233 ​°C) and trace amounts of MA cations enhance the thermal stability of the perovskite. Remarkably, we observe lattice shrinkage using spherical aberration corrected transmission electron microscope (AC-TEM). This work implies that stabilizing perovskites will be realized by incorporating trace amounts of MA, which improve the crystallization and carrier transport, leading to improved stability and performances.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 1","pages":"Article 100264"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Frustrated lewis pairs regulated solid polymer electrolyte enables ultralong cycles of lithium metal batteries","authors":"Pingping Chang ,&nbsp;Zhenjie Liu ,&nbsp;Murong Xi ,&nbsp;Yong Guo ,&nbsp;Tianlong Wu ,&nbsp;Juan Ding ,&nbsp;Hongtao Liu ,&nbsp;Yudai Huang","doi":"10.1016/j.apmate.2024.100263","DOIUrl":"10.1016/j.apmate.2024.100263","url":null,"abstract":"<div><div>Long-cycling dendrite-free solid-state lithium metal batteries (LMBs) require fast and uniform lithium-ion (Li⁺) transport of solid-state electrolytes (SSEs). However, the SSEs still face the problems of low ionic conductivity, low Li⁺ transference number, and unstable interface with lithium metal. In this work, a novel strategy of frustrated Lewis pairs (FLPs) modulating solid polymer electrolytes (SPEs) has been firstly proposed that enables durable Li reversible cycling. The tunable strength of Lewis acid and base dual-active sites of nickel borate FLPs can synergistically promote both the dissociation of lithium salts and the transfer of Li⁺. As a consequence, the FLPs modulated SPEs (SPE-NiBO-150) exhibit high ionic conductivity of 4.92×10⁻⁴ ​S ​cm⁻¹, high Li⁺ transference number of 0.74, and superior interface compatibility with both lithium anode and LiFePO₄ cathode at room-temperature. The Li//SPE-NiBO-150//Li symmetric cell demonstrates ultralong cycle stability (over 10,000 ​h (417 days) at both current density of 0.2 and 0.5 ​mA ​cm⁻²), and the assembled solid-state LiFePO₄//SPE-NiBO-150//Li battery also shows excellent performance (86% capacity retention for 300 cycles at 0.5C). The present work supplies a new insight into designing high-performance SPEs for solid-state LMB applications.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 1","pages":"Article 100263"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coupling Enteromorpha prolifera-derived N-doped biochar with Cu-Mo2C clusters for selective CO2 hydrogenation to CO","authors":"Xueyuan Pan ,&nbsp;Caikang Wang ,&nbsp;Bei Li ,&nbsp;Mingzhe Ma ,&nbsp;Hao Sun ,&nbsp;Guowu Zhan ,&nbsp;Kui Wang ,&nbsp;Mengmeng Fan ,&nbsp;Linfei Ding ,&nbsp;Gengtao Fu ,&nbsp;Kang Sun ,&nbsp;Jianchun Jiang","doi":"10.1016/j.apmate.2024.100259","DOIUrl":"10.1016/j.apmate.2024.100259","url":null,"abstract":"<div><div>CO₂ conversion to CO <em>via</em> the reverse water-gas shift (RWGS) reaction is limited by a low CO₂ conversion rate and CO selectivity. Herein, an efficient RWGS catalyst is constructed through <em>Enteromorpha prolifera</em>–derived N-rich mesoporous biochar (EPBC) supported atomic-level Cu-Mo₂C clusters (Cu-Mo₂C/EPBC). Unlike traditional activated carbon (AC) supported Cu-Mo₂C particles (Cu-Mo₂C/AC), the Cu-Mo₂C/EPBC not only presents the better graphitization degree and larger specific surface area, but also uniformly and firmly anchors atomic-level Cu-Mo₂C clusters due to the existence of pyridine nitrogen. Furthermore, the pyridine N of Cu-Mo₂C/EPBC strengthens an unblocked electron transfer between Mo₂C and Cu clusters, as verified by X-ray absorption spectroscopy. As a result, the synergistic effect between pyridinic N anchoring and the clusters interaction in Cu-Mo₂C/EPBC facilitates an improved CO selectivity of 99.95% at 500 ​°C compared with traditional Cu-Mo₂C/AC (99.60%), as well as about 3-fold CO₂ conversion rate. Density functional theory calculations confirm that pyridine N-modified carbon activates the local electronic redistribution at Cu-Mo₂C clusters, which contributes to the decreased energy barrier of the transition state of CO∗+O∗+2H∗, thereby triggering the transformation of rate-limited step during the redox pathway. This biomass-derived strategy opens perspective on producing sustainable fuels and building blocks through the RWGS reaction.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 1","pages":"Article 100259"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multicolor chiral perovskite nanowire films with strong and tailorable circularly polarized luminescence","authors":"Fang Peng ,&nbsp;Dan Liang ,&nbsp;En Yang ,&nbsp;Bongjun Yeom ,&nbsp;Yuan Zhao ,&nbsp;Wei Ma","doi":"10.1016/j.apmate.2024.100262","DOIUrl":"10.1016/j.apmate.2024.100262","url":null,"abstract":"<div><div>Perovskites showcased potential promise for innovative circularly polarized luminescence (CPL)-active multichannel information encryption, owing to the exceptional luminescence brightness. It was still a formidable challenge to fabricate CPL-active perovskites with significant luminescent asymmetry factor (<em>g</em>_lum) and full-colour-tailorable CPL properties. Indeed, compared to isotropic perovskites, anisotropic perovskite nanowires (NWs) were conducive to carrier separation and transport for polarization enhancement. Herein, three types of CsPb(Br/I)₃ NWs with green, orange, red fluorescence (FL) were respectively synthesized and assembled into chiral NW films. The right-handed/left-handed chiral NW films constructed by 4+4 layers and 45° inter-angles exhibits highly symmetric and mirror-like chiral signals. The strongest chiral intensity is more than 3000 medg. CPL signals with wide colour gamut produce ranging from 480 ​nm to 800 ​nm, and tailorable CPL wavelengths are manipulated by the emission wavelength of perovskite NWs. A giant CPL signal with a maximum <em>g</em>_lum of up to 10⁻¹ is achieved. The polarization imaging of chiral NW films produces brilliant differential circularly polarized structural colours, making it more widely used in multilevel anti-counterfeiting systems. A significant breakthrough lies in the development of advanced chiral perovskite materials with remarkable <em>g</em>_lum and tailorable CPL properties, which sheds new light on optical anti-counterfeiting and intelligent information encryption.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 1","pages":"Article 100262"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid synthesis of carbon quantum dot-integrated metal–organic framework nanosheets via electron beam irradiation for selective 5-hydroxymethylfurfural electrooxidation","authors":"Qianjia Ni ,&nbsp;Mingwan Zhang ,&nbsp;Bijun Tang ,&nbsp;Weidong Hou ,&nbsp;Kang Wang ,&nbsp;Huazhang Guo ,&nbsp;Jiye Zhang ,&nbsp;Tao Han ,&nbsp;Minghong Wu ,&nbsp;Liang Wang","doi":"10.1016/j.apmate.2025.100267","DOIUrl":"10.1016/j.apmate.2025.100267","url":null,"abstract":"<div><div>Balancing the adsorption of OH⁻ and 5-hydroxymethylfurfural (HMF) is crucial in optimizing the competing HMF oxidation reaction and oxygen evolution reaction, especially given the polymerization tendency of HMF in alkaline solutions. Herein, we present an innovative approach for rapidly synthesizing a NiFe bimetallic metal-organic framework (MOF) induced by electron-withdrawing carbon quantum dot (EW-CQD) via electron beam irradiation within 2 ​min. EW-CQD serve as structural regulators, expanding the NiFe-MOF interlayer spacing, increasing reactive site availability, and more effectively balancing the adsorption of OH⁻ and HMF, thereby significantly boosting the oxidation activity of HMF. The resulting EW-CQD-MOF exhibits a low potential of 1.36 ​V vs. RHE at 10 ​mA ​cm⁻² and maintains excellent durability over 120 ​h. Comprehensive in situ characterization elucidates the HMF oxidation reaction pathway, showing high selectivity towards 2,5-furandicarboxylic acid (FDCA) under ambient conditions, with an impressive HMF conversion rate of 94% and FDCA selectivity of 96% within 6 ​h. These findings underscore the critical role of structural optimization and adsorption balance in catalytic performance enhancement and offer valuable insights for designing high-efficiency catalysts, advancing sustainable catalytic processes.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 2","pages":"Article 100267"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure-tailored superlattice Bi7Ti4NbO21: Coupling octahedral tilting and rotation induced high ferroelectric polarization for efficient piezo-photocatalytic CO2 reduction","authors":"Jingren Ni ,&nbsp;Rufang Zhao ,&nbsp;Chendi Shi ,&nbsp;Yuanyuan Ji ,&nbsp;Aize Hao ,&nbsp;Aiting Xie ,&nbsp;Hongjian Yu ,&nbsp;Siew Kheng Boong ,&nbsp;Hiang Kwee Lee ,&nbsp;Chuanqiang Zhou ,&nbsp;Jie Han","doi":"10.1016/j.apmate.2025.100265","DOIUrl":"10.1016/j.apmate.2025.100265","url":null,"abstract":"<div><div>Intergrowth ferroelectric semiconductors with excellent spontaneous polarization field are highly promising piezo-photocatalytic candidate materials. In addition, developing structural design and revealing polarization enhancement in-depth mechanism are top priorities. Herein, we introduce the intergrowth ferroelectrics Bi₇Ti₄NbO₂₁ thin-layer nanosheets for piezo-photocatalytic CO₂ reduction. Density functional theory (DFT) calculations indicate that interlayer lattice mismatch leads to increased tilting and rotation angle of Ti/NbO₆ octahedra on perovskite-like layers, serving as the main reason for increased polarization. Furthermore, the tilting and rotation angle of the interlayer octahedron further increase under stress, suggesting a stronger driving force generated to facilitate charge carrier separation efficiency. Meanwhile, Bi₇Ti₄NbO₂₁ nanosheets provide abundant active sites to effectively adsorb CO₂ and acquire sensitive stress response, thereby presenting synergistically advanced piezo-photocatalytic CO₂ reduction activity with a high CO generation rate of 426.97 ​μmol ​g⁻¹ ​h⁻¹. Our work offers new perspectives and directions for initiating and investigating the mechanisms of high-performance intergrowth piezo-photocatalysts.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 2","pages":"Article 100265"},"PeriodicalIF":0.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High temperature molten salts mediated deep regeneration and recrystallization of ternary nickle-rich cathodes","authors":"Peng Yuan ,&nbsp;Tao Zhang ,&nbsp;Zuoyu Qin ,&nbsp;Yuanhang Gao ,&nbsp;Xiang Long ,&nbsp;Zuosu Qin ,&nbsp;Ning Zhang ,&nbsp;Chuankun Jia ,&nbsp;Gen Chen","doi":"10.1016/j.apmate.2025.100266","DOIUrl":"10.1016/j.apmate.2025.100266","url":null,"abstract":"<div><div>Within the framework of carbon neutrality, lithium-ion batteries (LIBs) are progressively booming along with the growing utilization of green and clean energy. However, the extensive application of LIBs with limited lifespan has brought about a significant recycling dilemma. The traditional hydrometallurgical or pyrometallurgical strategies are not capable to maximize the output value of spent LIBs and minimize the potential environmental hazards. Herein, to alternate the tedious and polluting treatment processes, we propose a high-temperature molten-salt strategy to directly regenerate spent cathodes of LIBs, which can also overcome the barrier of the incomplete defects' restoration with previous low-temperature molten salts. The high-energy and stable medium environment ensures a more thorough and efficient relithiation reaction, and simultaneously provides sufficient driving force for atomic rearrangement and grains secondary growth. In consequence, the regenerated ternary cathode (R-NCM) exhibits significantly enhanced structural stability that effectively suppresses the occurrence of cracks and harmful side reactions. The R-NCM delivers excellent cycling stability, retaining 81.2% of its capacity after 200 cycles at 1 C. This technique further optimizes the traditional eutectic molten-salt approach, broadening its applicability and improving regenerated cathode performance across a wider range of conditions.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 2","pages":"Article 100266"},"PeriodicalIF":0.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomically dispersed Fe boosting elimination performance of g-C3N4 towards refractory sulfonic azo compounds via catalyst-contaminant interaction","authors":"Puying Liang ,&nbsp;Zhouping Wang ,&nbsp;Shiyu Liao ,&nbsp;Yang Lou ,&nbsp;Jiawei Zhang ,&nbsp;Chengsi Pan ,&nbsp;Yongfa Zhu ,&nbsp;Jing Xu","doi":"10.1016/j.apmate.2024.100251","DOIUrl":"10.1016/j.apmate.2024.100251","url":null,"abstract":"<div><div>Herein, an oxygen-doped porous g-C₃N₄ photocatalyst modified with atomically dispersed Fe (Fe₁/OPCN) is successfully prepared and exhibits significant superiority in removing refractory sulfonic azo contaminants from water via catalyst-contaminant interaction. The elimination performance of Fe₁/OPCN towards acid red 9, acid red 13 and amaranth containing similar azonaphthalene structure and increasing sulfonic acid groups increases gradually. The amaranth degradation rate of Fe₁/OPCN is 17.7 and 6.1 times as that of homogeneous Fenton and OPCN, respectively. In addition, Fe₁/OPCN also has more outstanding removal activities towards other contaminants with sulfonic acid and azo groups alone. The considerable enhancement for removing sulfonic azo contaminants of Fe₁/OPCN is mainly ascribed to the following aspects: (1) The modified Fe could enhance the adsorption towards sulfonic azo compounds to accelerate the mass transfer, act as e⁻ acceptor to promote interfacial charge separation, and trigger the self-Fenton reaction to convert in-situ generated H₂O₂ into •OH. (2) Fe(Ⅲ) could coordinate with <strong>—</strong>N=N<strong>—</strong> to form d-π conjugation, which could attract e⁻ transfer to attack <strong>—</strong>N=N<strong>—</strong> bond. Meanwhile, the inhibited charge recombination could release more free h⁺ to oxidize sulfonic acid groups into SO₄⁻•. (3) Under the cooperation of abundant multiple active species (<em>•</em>O₂⁻, h⁺, e⁻, <em>•</em>OH, SO₄⁻•) formed during the degradation reaction, sulfonic azo compounds could be completely mineralized into harmless small molecules (CO₂, H₂O, etc.) by means of <strong>—</strong>N=N<strong>—</strong> cleavage, hydroxyl substitution, and aromatic ring opening. This work offers a novel approach for effectively eliminating refractory sulfonic azo compounds from wastewater.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 1","pages":"Article 100251"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}