Journal of Rare Earths最新文献

{"title":"Red-emitting scintillators based on simply synthesized Eu3+-doped strontium fluoride for X-ray imaging","authors":"Rui Zhu,&nbsp;Xiaoqi Zhao,&nbsp;Jiahui Ren,&nbsp;Tingting Li,&nbsp;Mengzhen Jia,&nbsp;Yami Ling,&nbsp;Xinyu Song,&nbsp;Lei Zhao,&nbsp;Chongfeng Guo","doi":"10.1016/j.jre.2025.11.006","DOIUrl":"10.1016/j.jre.2025.11.006","url":null,"abstract":"<div><div>X-ray scintillators have excellent application prospects in the fields of radiation detection, X-ray imaging, radiotherapy and industrial nondestructive inspection. Despite great advances in X-ray scintillators, developing X-ray scintillators with high light yield, stability, and flexibility remains an important challenge. In this work, red-emitted SrF₂:5%Eu³⁺/20%Tb³⁺ (mol%) scintillator was synthesized by a very simple chemical precipitation at room temperature. Owing to the efficient energy transfer process from Tb³⁺ to Eu³⁺, the X-ray radioluminescence intensity of SrF₂:5%Eu³⁺/20%Tb³⁺ is increased by 3.9 times compared with SrF₂:5%Eu³⁺. SrF₂:5%Eu³⁺/20%Tb³⁺ scintillator possesses superb stability and radioluminescence performance, where the light yield is 2.3 times that of the commercial Bi₄Ge₃O₁₂ (BGO) single crystal. SrF₂:5%Eu³⁺/20%Tb³⁺/PDMS composite films were prepared by physical mixing of scintillator powders and polydimethylsiloxane (PDMS) and present super flexibility and excellent radioluminescence stability. The scintillator films exhibit impressive planar and non-planar imaging capabilities with the spatial resolution of 12.6 lp/mm, where is much higher than the spatial resolution required for medical X-ray imaging (3.5 lp/mm). These remarkable properties of SrF₂:5%Eu³⁺/20%Tb³⁺/PDMS composite films endow them with bright application prospects in X-ray industrial nondestructive inspection, food safety and biomedical detection.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2605-2611"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybrid nanoclusters based on upconversion nanoparticles for temperature-feedback-controlled photothermal therapy within near-infrared-II window","authors":"Xiaochen Qiu,&nbsp;Qianwen Zhou,&nbsp;Yang Li,&nbsp;Hongxing Xu","doi":"10.1016/j.jre.2025.10.002","DOIUrl":"10.1016/j.jre.2025.10.002","url":null,"abstract":"<div><div>Near-infrared (NIR)-activated photothermal therapy (PTT) is increasingly used in clinical nanomedicine, primarily because of its noninvasive nature and exceptional therapeutic outcomes. However, the lack of an effective real-time local temperature feedback during PTT is an obstacle to the development of precision therapy. In this study, we developed self-assembled hybrid nanoclusters for temperature-feedback-controlled PTT by integrating Pr₆O₁₁ nanoparticles with rare-earth-doped upconversion nanoparticles (UCNPs), which exhibit excellent temperature sensing. Augmentation of the nanoparticle dimensions induces a marked red-shift in the absorption spectra of Pr₆O₁₁, extending from the ultraviolet to the NIR region. Pr₆O₁₁ nanoparticles with a size of 360 nm exhibit pronounced optical absorption and efficient photon-to-heat conversion within the NIR-II window, resulting in a robust photothermic effect upon irradiation with a 1064 nm continuous-wave laser. Furthermore, the temperature can be precisely detected and monitored <em>in vivo</em> through the upconversion luminescence of the UCNPs, enabling the mitigation of photothermal collateral damage to adjacent healthy tissues. These findings contribute to the development of innovative hybrid nanoclusters tailored for temperature feedback targeting the NIR-II spectral region, providing a good strategy for PTT with a strong application prospect in cancer treatment.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2543-2550"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural modulation of atomically precise lanthanide clusters for enhanced near-infrared photoluminescence quantum yield","authors":"Tingting Li,&nbsp;Jiyu Sui,&nbsp;Meixin Hong,&nbsp;Sheng-Rong He,&nbsp;Weinan Dong,&nbsp;Jingjing Xia,&nbsp;Guizhong Luo,&nbsp;Anran Ju,&nbsp;Cong Zhang,&nbsp;Yu Zhang,&nbsp;Zhennan Wu,&nbsp;Feng Jiang,&nbsp;Xue Bai","doi":"10.1016/j.jre.2025.09.043","DOIUrl":"10.1016/j.jre.2025.09.043","url":null,"abstract":"<div><div>Near-infrared luminescent lanthanide materials hold significant importance in the fields such as optoelectronics and information processing. However, their luminescence efficiency is severely constrained by multiple factors, including vibrational quenching, crystal field effects, and structural symmetry. In recent years, emerging lanthanide clusters featuring atomically precise structures have offered promising pathways to overcome these constraints and achieve efficient near-infrared (NIR) luminescence. Here, we successfully synthesized two distinct crystalline compounds (Nd-1 and Nd-2) via a stepwise substitution strategy, allowing for the modulation of the luminescence behavior of Nd³⁺ ions. Complete substitution with the pentafluorobenzoic acid ligand results in Nd-2 exhibiting higher structural symmetry and fewer nonradiative relaxation pathways. These structural optimizations lead to a significant improvement in luminescence efficiency, with Nd-2 exhibiting a solid-state near-infrared photoluminescence quantum yield (PLQY) of 1.12%, a substantial enhancement compared to conventional Nd³⁺-based complexes. The underlying modulation mechanism was elucidated through application of Judd-Ofelt theory, crystal field analysis, and temperature-dependent photophysical investigations. This work reveals the intrinsic relationship between the structure and the luminescence behavior, providing a novel approach for designing high-efficiency NIR luminescent materials.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2612-2622"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147888311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High performance DUV to NIR broadband silicon photodetectors enabled by Zn2+, Tb3+-codoped Cs2NaGdCl6 double perovskites nanocrystal integration","authors":"Jianing Fan,&nbsp;Hailong Liu,&nbsp;Nan Ding,&nbsp;Jingxuan Wang,&nbsp;Rong Xue,&nbsp;Yuhan Jing,&nbsp;Wen Xu","doi":"10.1016/j.jre.2025.08.009","DOIUrl":"10.1016/j.jre.2025.08.009","url":null,"abstract":"<div><div>Silicon photodetectors (Si PDs) have garnered significant attention for photoelectric applications. However, their performance in the deep-ultraviolet to ultraviolet (DUV-UV) range remains limited, due to high reflection coefficients and shallow penetration depths. In this work, we employed the extremely efficient UV to visible emissions Zn²⁺, Tb³⁺-codoped Cs₂NaGdCl₆ double perovskite nanocrystals (DPNCs) to boost the DUV-UV response of Si PDs. The pristine Cs₂NaGdCl₆ DPNCs exhibit characteristic blue emission from self-trapped excitons (STEs), while Tb³⁺ doping enables green emission by efficient energy transfer from STEs to Tb³⁺. Meanwhile, because Zn²⁺ ion has a smaller ionic radius and the closed character of its 3d-shell, the Zn²⁺ doping can decrease defect and improve optical performance of Cs₂NaGdCl₆ DPNCs, leading to the enhanced 4f-4f transitions of Tb³⁺. Finally, by spin coating the Zn²⁺, Tb³⁺-codoped Cs₂NaGdCl₆ DPNCs in the front of the Si PDs, we achieve remarkable DUV-UV responsivity enhancement, including high responsivity of 93.6 mA/W and outstanding external quantum efficiency of 35.46% at UV illumination. This work shows a paradigm for developing environmentally stable, full-spectrum PDs through rational design of lead-free rare-earth-based DPNCs/silicon heterojunctions.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2580-2586"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photon avalanche control of RE-doped anisotropic crystal particle through polarization response and plasmon resonance","authors":"Zeyu Sun,&nbsp;Wenxuan Han,&nbsp;Yujun Wang,&nbsp;Jiawei Fan,&nbsp;Lei Guo,&nbsp;Huan Chen,&nbsp;Jinping Li,&nbsp;Zhengkun Fu,&nbsp;Hairong Zheng","doi":"10.1016/j.jre.2025.09.040","DOIUrl":"10.1016/j.jre.2025.09.040","url":null,"abstract":"<div><div>Photon avalanche (PA) effect of rare earth (RE)-doped crystal is an important unique optical phenomenon that has profound implications in plentiful frontier applications. Due to factors such as poor crystallinity and numerous surface defects, non-radiative relaxation and energy loss result in low emission efficiency, making the PA process of isolated nanoparticles difficult to observe. Microcrystal particles have both the flexibility of a particle and crystal property of the bulk, offering more opportunities to deepen the fundamental understanding and to develop the potential applications of PA effect with particle system. Here we focused on the functions of polarization and localized surface plasmon resonance to the formation of PA and its property regulation in Ho³⁺ doped β-NaYF₄ single uniaxial crystal particle. Obvious anisotropic characteristics are observed for the red emission of PA under linearly polarized excitation at 976 nm. The nonlinear coefficient of the PA process is significantly increased with local field enhancement when the Au nanorods are assembled onto the crystal particle in the both cases of excitation wave vector being perpendicular and parallel to the <em>c</em>-axis of the crystal particle, which increases to 41th-order experimentally. In addition, the response time of the PA process is reduced obviously with the increase of the nonlinear coefficient, and some sensitive transient optical responses are detected, too. The current investigation provides deeper understanding on the PA effect of anisotropic crystal particle and more possibilities for developing potential applications of PA with particle system.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2642-2649"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148861951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DFT engineering of lanthanide-doped Cs2Snx−2RE2Cl6 (RE = La, Ce, Pr, Nd) double perovskites: Tailoring optoelectronic, magnetic and mechanical properties for photovoltaic applications","authors":"Malik Shafqat Hayat,&nbsp;Rana Muhammad Arif Khalil,&nbsp;Arslan Ashfaq,&nbsp;Rasmiah S. Almufarij,&nbsp;M.D. Alshahrani,&nbsp;Elsammani Ali Shokralla,&nbsp;Mohamed Abdelsabour Fahmy,&nbsp;Atiq ur Rehman,&nbsp;Abdulaziz M. Alanazi,&nbsp;H.H. Somaily","doi":"10.1016/j.jre.2025.12.010","DOIUrl":"10.1016/j.jre.2025.12.010","url":null,"abstract":"<div><div>The discovery of novel materials with exceptional physical properties remains a significant challenge in the development of next-generation photovoltaic technologies. In this study, density functional theory (DFT) was employed to investigate double halide perovskites Cs₂Sn_{<em>x</em>−2}RE₂Cl₆ (RE = La, Ce, Pr, Nd), where rare earth lanthanides were introduced as dopants. The electronic, optical, spin-polarized, and mechanical properties of these compounds were systematically explored. The calculated band gaps are 3.63 eV (La), 1.68 eV (Ce), 0.84 eV (Pr), and 1.01 eV (Nd), indicating a tunable optoelectronic response suitable for photovoltaic applications. The presence of both valence and conduction bands confirms their potential for efficient photo-induced charge transport. Mechanical analysis via Poisson's and Pugh's ratios confirms ductility across all compositions, supporting their integration in flexible devices. Additionally, pronounced elastic anisotropy is observed in each material. Spin-polarized density of states reveals symmetric energy distributions for spin-up and spin-down channels, indicating non-magnetic ground states. Strong absorption in the visible region further supports the suitability of these lanthanide-doped perovskites as promising candidates for future photovoltaic applications.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2722-2732"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of LiTaO3:Tb3+ bulk nanoceramics and persistent luminescence revealed by thermal- and electric-driven hopping of defects","authors":"Zhengren Tao,&nbsp;Lingying Xu,&nbsp;Yinghan Wang,&nbsp;Qingdi Liu,&nbsp;Shi Ye","doi":"10.1016/j.jre.2026.05.005","DOIUrl":"10.1016/j.jre.2026.05.005","url":null,"abstract":"<div><div>Bulk ceramics of afterglow phosphors are preferred for real applications with applied external stimuli like electric field, force and heat. However, sintering powdered afterglow phosphors with high-temperature-volatile components to bulk form normally leads to deterioration or even loss of persistent luminescence (PersL), such as the case of LiTaO₃:Tb³⁺. This study adopted a strategy of using nanosized precursors prepared by exfoliation and molten salts methods for the subsequent sintering procedure to form LiTaO₃:1 mol% Tb³⁺ bulk nanoceramics, which show outstanding PersL compared to bulk microceramics with absence of PersL. The dynamics of carriers, including electrons, holes and non-static V_Li defects were detailedly investigated in the charging process of the bulk nanoceramics at elevated temperatures. It is found that defects not only act as traps storing and releasing electron-hole carriers, but also function as carriers themselves in the LiTaO₃:1%Tb³⁺ bulk nanoceramics. Temperature-dependent electricity and luminescence verify the hopping process of Li⁺/V_Li above 225 °C. The hopping leads to accelerated release of holes initially captured by V_Li and the subsequent non-radiative recombination with electrons from V_O. It features an apparent and significant intensity decline during the charging process compared to low temperatures or cases without PersL. The bulk nanoceramics possess a temperature-triggered capability for anti-counterfeiting and information storage. These findings contribute to a strategy to fabricate bulk ceramics which are sensitive to sintering procedure, and provide valuable insights into the underlying mechanisms and the rational design of PersL materials.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2623-2633"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption photocatalysis synergistic removal of organic contaminant by renewable La-Ce co-doped palygorskite/glucose-derived carbon composite","authors":"Lingzheng Feng,&nbsp;Xiaojun Guo,&nbsp;Jianzhang Zhu,&nbsp;Wei Han,&nbsp;Yuxi Xi,&nbsp;Hudong Yan,&nbsp;Fei Zha,&nbsp;Xiaohua Tang,&nbsp;Haifeng Tian","doi":"10.1016/j.jre.2025.10.006","DOIUrl":"10.1016/j.jre.2025.10.006","url":null,"abstract":"<div><div>Addressing urgent concerns over oxytetracycline (OTC) pollution in the river, this study presents a novel La-Ce co-doped palygorskite/glucose-derived carbon composite (LC-PAL/GC) for synergistic adsorption-photocatalysis removal of OTC in complex aqueous environments. Leveraging ion-exchange capacity of palygorskite, La³⁺ substitution induces lattice distortion, enhancing surface charge density and hydroxyl concentration for optimized coordination adsorption. CeO₂ integration and carbon coating improve charge separation, broaden visible-light response, and enrich <em>π-π</em> interactions. Material characterization confirms enhanced specific surface area (147.41 m²/g), oxygen vacancy formation, and uniform elemental distribution. Under visible light, LC-PAL/GC achieves 98.2% OTC removal (0.3 g/L dosage) via photogenerated holes (h⁺) as dominant active species, validated by quenching experiments and electron paramagnetic resonance (EPR) analysis. The material demonstrates robust anti-interference capability, cyclic stability (&gt;92% after 4 cycles), and reduced ecotoxicity of treated solutions. Density functional theory (DFT) calculations reveal La doping-induced non-zero density of states (DOS) at the Fermi level, promoting electronic coupling with OTC. Degradation pathways involve stepwise oxidation and mineralization, supported by ultrahigh performance liquid chromatography-mass spectrometry (UPLC-MS) and toxicity assessments. This work provides a sustainable strategy for efficient antibiotic removal, bridging natural mineral advantages with advanced photocatalytic design for environmental remediation.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2678-2690"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in ion-imprinted polymer technology for rare earth element separation: A review","authors":"Binjun Liang,&nbsp;Pingxin Zhu,&nbsp;Jihan Gu,&nbsp;Xiangrong Zeng,&nbsp;Weiquan Yuan,&nbsp;Haixiang Hu,&nbsp;Lijin Huang,&nbsp;Bin Xiao","doi":"10.1016/j.jre.2025.12.004","DOIUrl":"10.1016/j.jre.2025.12.004","url":null,"abstract":"<div><div>Ion-imprinted polymers (IIPs) have emerged as promising materials for selective separation of rare earth elements (REEs), offering high selectivity, adsorption capacity, and environmental sustainability. This review comprehensively examines recent advances in REE-IIPs, focusing on synthesis strategies, recognition mechanisms, and separation performance. Various support platforms demonstrate diverse performance: mesoporous silica achieving the highest capacities (45–630 mg/g), followed by graphene oxide composites (50–250 mg/g) and MOFs (150–182 mg/g), while magnetic nanocomposites (88–128 mg/g) and biomass-based materials (38–125 mg/g) offer advantages in separation efficiency and sustainability, respectively. Four main polymerization methods – surface imprinting, bulk polymerization, <em>in-situ</em> polymerization, and sol–gel synthesis – offer different trade-offs between synthesis complexity and separation performance. Functional monomer selection proves critical, with phosphorus-containing monomers demonstrating superior REE affinity due to their electronic properties, while nitrogen and oxygen donors provide alternative coordination modes. Advanced strategies including membrane configurations address mass transfer limitations, while multi-template approaches enable complex separations. However, matrix effects in real waste streams can reduce performance by 50%–80%, highlighting the gap between laboratory and industrial applications. Critical challenges include the lack of predictive models linking polymer structure to selectivity, limited mechanism understanding, and economic constraints where material costs often exceed product values. Future development requires integrated approaches combining advanced characterization, computational modeling, and techno-economic assessment to enable rational design and industrial implementation. Success in addressing these challenges will be essential for sustainable REE recovery and supporting the global transition to clean energy technologies.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2511-2533"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of high-performance Y3+ doped CeO2 nanoabrasives through regulating crystallization of cerium carbonate","authors":"Jing Li,&nbsp;Xiaojie Jin,&nbsp;Lijuan Wang,&nbsp;Xiaoqing Zhou,&nbsp;Long Qiu,&nbsp;Xiaowei Huang,&nbsp;Yongxiu Li","doi":"10.1016/j.jre.2025.10.003","DOIUrl":"10.1016/j.jre.2025.10.003","url":null,"abstract":"<div><div>Nano ceria abrasive is a key material for ultra-precision chemical mechanical polishing (CMP) of advanced integrated circuits and optical components. Ion doping is an effective method to improve the surface Ce³⁺ content and chemical polishing effect. In this study, Y³⁺ doped CeO₂ nanoabrasives were prepared by regulating the crystallization process of rare earth (RE) carbonate precursor based on the morphology inheritance between the precursors and the calcined products. In order to reduce the crystallization rate of cerium carbonate, the crystallization inert region with NH₄HCO₃ to Ce³⁺ molar ratio of 6 and reaction temperature of 60 °C was selected for precipitation reaction, and Y³⁺, a heavy RE with a large ion radius difference from Ce³⁺, was introduced into the precipitation system. The crystallization rate of cerium carbonate decreases obviously when Y³⁺ doping content reaches 8 mol%, and amorphous nanoscale cerium carbonates begin to form. Using them as precursors, Y³⁺ doped CeO₂ nanoabrasives with doping content of 8 mol%–20 mol% were prepared by calcination, and their physicochemical properties and polishing performance on K9 glass were studied. The prepared Y³⁺ doped CeO₂ nanoabrasives have quasi-spherical morphology and the size is (50 ± 15) nm. With Y³⁺ doping amount increasing from 8 mol% to 20 mol%, the surface Ce³⁺ concentration of the abrasive particles slightly increases from 20.0% to 21.7%, while the Young's modulus decreases from 9.44 to 5.85 GPa. The sample with Y³⁺ doping content of 10 mol% has the best performance in K9 polishing, with material removal rate of (234.0 ± 4.0) nm/min and surface arithmetic mean height (<em>S</em>_a roughness) of (0.304 ± 0.018) nm.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2741-2749"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}