JOURNAL OF MOLECULAR STRUCTURE
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2026
·
IF 4.9
Xiao Rao,Xin-Jing Gong,Bo Ding,Jia-Jun Wang,Xiu-Guang Wang,Zheng-Yu Liu,En-Cui Yang
Lead-free indium(III) chlorides hybrids incoporated with 1-ammonium-4-methylpiperazinium and well-tunable Sb(III)-doping concentrations are hydrothermally prepared. • The perfectly regular [MCl6] 3− octahedra and axially compressed [MCl6] 3− octahedra are discretely embedded in a cationic matrix of 1-ammonium-4-methylpiperazinium and hydronium ion, resulting in zero-dimensional structure. • The optimized sample with Sb(III)-doping level of 3.44% exhibits unusual green triplet self-trapped exciton emission centered at 505 nm with high photoluminescence quantum yield of near-unity. Crystalline organic-inorganic metal halides (OIMHs) with environmental friendliness, high stability and soft crystal lattice have been emerging as next-generation high-performance luminescence materials for optoelectronic devices. To well-balance structural stability and photoluminescence enhancement, a series of zero-dimensional (0D) lead-free indium(III) chloride hybrids with well-tunable Sb(III)-doping concentrations have been hydrothermally prepared. In these materials, perfectly regular and axially compressed [MCl 6 ] 3− octahedra are discretely embedded in a matrix composed of 1-ammonium-4-methylpiperazinium and hydronium ion. It is the first time that organic cations and hydronium ions synergistically modulate the structural distortion of metal polyhedra embedded in a 0D host matrix. The optimized doped crystal of (C 5 H 15 N 3 ·2H 3 O) 3 In 2 Cl 18 ⋅0.25H 2 O:3.44%Sb with excellent structural and photophysical stability exhibits a bright broadband green triplet self-trapped exciton ( 3 STE) emission centered at 505 nm with a full width at half-maximum of 113 nm, a high photoluminescence quantum yield of near-unity and long-lived lifetime up to 88.3 μs. Systematical structural comparisons and spectral measurements demonstrate that the scarcely observed high-energy 3 STE emission is determined by the expanded [SbCl 6 ] 3− octahedron with significant angular deformation. Thus, the well-tuned green STE emission achieved via the self-designed doping scheme represents meaningful research progress, establishing an effective host-design guideline to steer STE emission toward green region. 0D Sb(III)-doped indium(III) chloride hybrids with regular and axially shortened octahedra alternately embedded in 1-ammonium-4-methylpiperazinium matrix exhibit unusual green 3 STE emission centered at 505 nm by preferred angular deformation of the expanded [SbCl 6 ] 3− octahedra. Download: Download high-res image (314KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Wenlong Ma,Hanqi Zhang,Long Zhao,Die Xu,Tongtong Xuan,Xiaojun Wang
Developing high-performance cyan-green phosphors is essential for addressing the long-standing spectral deficiency in full-spectrum white light-emitting diodes (white-LEDs). Here, we report a broadband cyan-green-emitting phosphor, Cs 2 KLuCl 6 :Sb 3+ , synthesized via a facile HCl-assisted solid-state route that supports low-temperature processing and scalable fabrication. Sb 3+ incorporation modulates the electronic structure of Cs 2 KLuCl 6 by narrowing the bandgap from 5.07 to 3.70 eV and inducing pronounced Sb-Cl-Lu orbital hybridization, which stabilizes self-trapped excitons (STEs) and promotes efficient radiative recombination. Under 330 nm excitation, the optimized phosphor exhibits intense broadband cyan-green emission centered at 513 nm with a full width at half maximum of ∼108 nm and a high photoluminescence quantum yield of 82%. The phosphor also demonstrates excellent thermal robustness, retaining 91% of its room-temperature emission intensity at 423 K, with a high thermal activation energy of 0.2874 eV. When integrated with commercial blue- and red-emitting phosphors on a 365 nm LED chip, the resulting white-LED delivers high-quality white light with a color rendering index of 92 and a correlated color temperature of 4671 K, effectively eliminating the cyan spectral gap. These results establish Cs 2 KLuCl 6 :Sb 3+ as a promising cyan-green phosphor for next-generation full-spectrum solid-state lighting.
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LANGMUIR
·
2026
·
IF 4.4
Zehua Cai,Zongxue Yu,Yan Yan,Bing Lin,Hailong Zhang,Yiping Hu,Taigang Zhou,Yingying Wang,Jiaqi Li,Junlei Tang
Electrocatalytic antimony-doped tin oxide (ATO) anodes are promising for wastewater treatment due to their high activity and low material cost. Nevertheless, the practical application is hindered by two-dimensional SnO2 electrodes with small active area, low mass transfer rates, and poor adhesion of the active layer and the substrate. In this study, a porous titanium foam-based ATO (TF@ATO) anode was successfully constructed by the solvothermal method, exhibiting good electrochemical performance and structural stability. Compared to the plate SnO2 electrodes, the electroactive surface area of 3D TF@ATO anode is increased by ∼6 times, and the accelerated service life is improved by ∼35 times. In the degradation of model rhodamine B (RhB) effluents (50 mg/L), the porous TF@ATO anode demonstrates the quicker decolorization rate (98.52%) and lower specific energy consumption (3.34 kWh/m3/order) than that of the conditional plate anode within 120 min at a current of 10 mA/cm2. More importantly, the porous Ti-based electrode exhibited effective degradation in high-concentration (1000 mg/L) dye wastewater, which indicates that the prepared electrodes had potential for engineering application. Finally, the possible degradation pathways were proposed based on high-performance liquid chromatography–mass spectrometry analysis, suggesting a feasible strategy toward efficient and deep mineralization of dye-containing wastewater.
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Biosensors-Basel
·
2026
·Vol. 16
·期 7
·372
·
IF 6.2
Ling Yang,Dandan Peng,Haihu Tan,Yahu Wang,Xin Lu,Fanming Zeng,Shigang Liu,Yuejun Liu
Accurate discrimination of multiple heavy metal ions is essential for environmental monitoring. This study developed a simple fluorescent sensing array utilizing carbon dots derived from black plum peels (PCDs) for the precise identification of metal ions in environmental waters. Three structurally distinct PCDs were hydrothermally synthesized using phenylenediamine isomers as nitrogen dopants, exhibiting distinct fluorescence response patterns to target ions. Pattern recognition was performed using linear discriminant analysis (LDA) and hierarchical clustering analysis (HCA). The optimized system (pH 5–7) achieved high discrimination accuracy for eight metal ions (Sn2+, Ag+, Hg2+, Fe3+, Cr3+, Pb2+, Sb3+, and Cu2+) at 5–400 μM concentrations. The array effectively identified the binary and ternary mixtures of Hg2+/Cu2+/Cr3+and successfully detected target ions in river water samples. This cost-effective and scalable approach demonstrates strong potential for applications in water quality monitoring and food safety.
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Nature Water
·
2026
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IF 30.7
Liu Fu,Hao Fengkun,Sun Mingzi,Wang Helin,Yao Ning,Wang Yunhao,Wang Juan,Chen Peng,Ma Xintao,Zhou Jingwen,Xiong Yuecheng,Ma Yangbo,Wang Guozhi,Guo Liang,Meng Xiang,Shao Mingzheng,Wang Chaohui,Wang Miao,Qian Fangren,Ye Chenliang,Xi Shibo,Huang Bolong,Fan Zhanxi
Phase control of alloy nanomaterials can modulate their atomic/electronic structures towards various electrocatalytic applications. However, the controlled synthesis of high-entropy nanoalloys (HENAs) with unconventional phase remains challenging. Here we report the one-pot synthesis of RhCuNiInSb HENAs with the unconventional 2H phase through regulating the nucleation/growth kinetics. Compared with the face-centred cubic phase counterpart, 2H RhCuNiInSb HENAs exhibit superior electrocatalytic nitrate reduction performance at low nitrate concentration. Ex/in situ studies reveal the accelerated deoxygenation/hydrogenation kinetics and distinct reaction pathway. Theoretical calculations demonstrate the electronic optimizations induced by the face-centred-cubic-to-2H phase transition, where the electronic redistribution and p – d elemental interactions improve the surface electroactivity. When operated in flow cell, 0.5 l of simulated wastewater can be efficiently converted into the value-added ammonia-derived product within 10 h. With a 20-h electrolysis, the NO 3 − -N concentration in real industrial and agricultural wastewater can be both reduced above the World Health Organization standard for drinking water.
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 31
·42824-42836
·
IF 7.8
Zhao Quan,Huang Tao,Xu Ou,Fu Jiali,Huang Jiaren,Zhao Yongqiang,Wang Suihao,Liu Dongxi,Chen Weixing,Zou Bingsuo
Organic–inorganic hybrid multimetal halides possess rich photophysical properties and great potential for multicolor emission and multifunctional optoelectronic applications, but their development is limited by phase separation and the difficulty of integrating multiple luminescent functions. Herein, we report a zero-dimensional Pb-In bimetallic halide, (C 9 H 20 N) 7 [InCl 4 ] 2 [Pb 3 Cl 11 ] (C 9 H 20 N + = 1-butyl-1-methylpyrrolidinium), as a structurally well-defined multimetallic crystalline platform. Under 340 nm excitation, the compound exhibits bright green emission at 518 nm with a high PLQY of 96.4%, originating from the [Pb 3 Cl 11 ] 5– cluster tri-polaron formed through phonon-assisted coupling among three [PbCl 6 ] 4– octahedra. Upon Sb 3+ introduction, an additional broadband red emission at 675 nm appears, associated with Sb 3+ -related triplet self-trapped exciton (STE) and Sb 3+ -In 3+ donor–acceptor pair (DAP), enabling excitation-dependent tunable emission from green to red. More importantly, under 365 nm excitation, the undoped crystal shows pronounced anti-thermal-quenching behavior, while the Sb 3+ -doped system exhibits temperature-responsive luminescence regulation and reversible red-orange-green thermochromism over 80–460 K. This work thus integrates efficient cluster-based green emission, Sb 3+ -induced red emission, antithermal-quenching behavior, and reversible thermochromic response in a single Pb-In multimetallic zero-dimensional crystalline platform, showing promise for solid-state lighting, optical anticounterfeiting, and information encryption.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Yihan Wu,Shanhong Wan,Shanshan Xiao,Chenxin Wang,Shaoqing Lu,Weite Meng,Mingquan Li,Lulu Huang,Khak Ho Lim,Yu Liu
Earth-abundant tetrahedrite Cu12Sb4S13 is a promising p-type thermoelectric (TE) material owing to its intrinsically low lattice thermal conductivity, yet its performance remains limited by insufficient electrical transport and the persistent trade-off between charge and phonon transport. In this study, we present a colloidal route for the scalable synthesis of Ag-substituted Cu12Sb4S13 nanocrystals and use these nanocrystal building blocks to construct bulk tetrahedrite TE materials with improved transport balance. Ag incorporation preserves the tetrahedrite framework while inducing lattice expansion, increased microstrain, local bond softening, and enhanced structural disorder, which can be retained to a meaningful extent after densification. These structural perturbations are accompanied by a marked enhancement in electrical conductivity and weighted mobility, together with a substantial suppression of lattice thermal conductivity. The optimally substituted Cu11.92Ag0.08Sb4S13 sample exhibits the best overall transport performance, reaching a lattice thermal conductivity of 0.30 W m–1 K–1 and a maximum zTmax of 1.23 at 690 K, representing an approximately 1.8-fold improvement over pristine Cu12Sb4S13, as well as competitive theoretical conversion efficiency and slightly improved hardness. These results highlight Ag-substituted nanocrystals as effective building blocks for improving the TE performance of earth-abundant tetrahedrites through coordinated control of structure and transport.
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Nature Communications
·
2026
·
IF 18.1
Li Zexin,Gou Genchang,Xu Xiang,Wang Haoyun,Liu Teng,Luo Hao,Wu Jinsong,Liu Kailang,Gao Liang,Zhai Tianyou,Zhou Xing
Exploring dielectrics with high gate capacitance and artificial tailoring of electronic states is highly desirable for the development of 2D electronics. Here, we report the synthesis of a single-crystalline ionic dielectric Sb 4 O 5 Cl 2 with aligned ionic channels, achieving a dielectric constant of 23.3 (at a thickness of ~ 25 nm) and non-volatile programmable regulation of the ionic migration. The fabricated 2D MoS 2 transistors display on/off ratios up to 10 9 , leakage currents down to 10 −14 A, and mobility of 33.4 cm 2 V −1 s −1 . Oriented ionic channels facilitate efficient and controllable migration of Cl − ions, thus realizing a non-structural-damage and reconfigurable transition between a quasi-metallic and semiconducting state in MoS 2 , with a retention time exceeding 3000 s. During 100 cycles of state transitions, the quasi-metallic state exhibits a conductivity of 10 −5 S, which is 10 3 times that of the semiconducting state. Bio-inspired ionic channel further allows neuromorphic devices to integrate image storage, processing, and recognition capabilities, achieving a recognition accuracy improvement from 80.7% to 90.9% within just 5 training epochs through non-volatile preprocessing lasting over 300 s. Our study highlights the significant potential of this single-crystal ionic dielectric as a promising platform for fundamental research on electronic state modulation and advanced electronics.
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DALTON TRANSACTIONS
·
2026
·
IF 3.3
Zong-Jie Zhao,Yu-Zheng Yan,Jia-Jian Fu,Hong-Yan Wu,Jian-Han Zhang
Two new all-inorganic lead halide phosphites, Pb3(HPO3)Cl4·H2O and Pb3(HPO3)2Cl2·H2O, have been synthesized and structurally characterized as layered frameworks constructed from distorted Pb–O(H2O) polyhedra linked by pseudo-tetrahedral HPO3 groups, with interlayer Cl− ions providing charge balance and imparting intrinsic structural anisotropy. UV–vis diffuse reflectance spectra analyzed using Tauc's fitting show that both compounds are direct wide-band-gap materials, with optical band gaps of 4.20 eV for Pb3(HPO3)Cl4·H2O and 4.14 eV for Pb3(HPO3)2Cl2·H2O, indicating good transparency in the UV region. Birefringence measurements at 546 nm using a Berek compensator yield Δn ≈ 0.033 and 0.057 for Pb3(HPO3)Cl4·H2O and Pb3(HPO3)2Cl2·H2O, respectively, demonstrating useful optical anisotropy for polarization-dependent applications. Density functional theory calculations reproduce the wide-gap insulating character of both phases and predict birefringence values in good agreement with experiment, supporting their identification as phosphite-based candidates for UV/visible birefringent optical crystals.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.7
Yanrong Zhu,Hanlin Hu,Haizhe Zhong,Yumeng Shi
Conventional white light-emitting diodes often suffer from low color rendering index and high correlated color temperature due to the lack of red emission. Here, we report novel rare-earth-free Cs 2 CdCl 4 : Sb 3+ , Mn 2+ phosphors synthesized via a cost-effective co-precipitation route. The dual-emission behavior arises from Sb 3+ -related self-trapped excitons (green) and the characteristic 4 T 1 (G)→ 6 A 1 (S) transition of Mn 2+ (orange). Spectroscopic and time-resolved studies reveal an efficient Sb 3+ →Mn 2+ energy transfer process, governed by a dipole-quadrupole interaction. By adjusting Mn 2+ concentration, tunable emission spanning green to orange is achieved, enabling single-component white light generation. In addition, the strong concentration and excitation-dependent emission characteristics suggest potential applications in areas such as multidimensional information encryption and optical anti-counterfeiting. This work provides a low-cost, rare-earth-free strategy for designing multifunctional phosphors for high-quality lighting and security technologies.
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MATERIALS CHEMISTRY AND PHYSICS
·
2026
·
IF 5.2
Xiangqian Ren,Lianyan Zhu,Bin Guo,Wenting Liu,Shuang Yu,Xingfu Zhou
Ti/TiO 2 NTs/SnO 2 –Sb–Mo anode was prepared by adding intermediate layers and elemental doping and GF/Cu–C 3 N 4 cathode was prepared by impregnation method. The electrode was characterized by SEM, XRD, LSV, CV, and EIS, which show that a more uniform and finer-grained surface structure with higher electrocatalytic activity can be prepared by doping and the addition of TiO 2 -NTs interlayer. In addition, the cathode demonstrate the successful loading of Cu–C 3 N 4 on graphite felts (GFs) by SEM and EDS. The electrochemical test shows the high electrochemical activity. The high activity of the two-electrode system was verified according to the hydroxyl radical test, and then the two electrodes were applied to the degradation of 50 mg/L methylene blue wastewater at the same time, and the results showed that the degradation rate was 98.09% in 20 min, and the COD removal was as high as 80.11%, which is 1.33 times and 2.83 times of the single-anode and single-cathode systems, respectively. In addition, the system could show excellent degradation performance in a wide pH range. At the same time, the energy consumption of the two-electrode system is only 110.9 KWh/Kg. Finally, after ten consecutive decolorization experiments, the decolorization rate of methylene blue and the removal rate of COD could still reach 90.5% and 68.7% in 20 min, which indicated that the dual-electrode system had excellent reusability. The study opens a door to the practical application of electrochemical treatment of wastewater.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Ruibin Hao,Hongli Yu,Yibo Cui,Ruonan Yao,Ting Wen,Yonggang Wang,Jing Zhao,Quanlin Liu
Stimuli responsive luminescent materials that can be triggered by mechanical, thermal, or solvent inputs hold great potential for advanced information security and anti-counterfeiting applications. In this study, we present a family of 0D antimony based organic inorganic hybrid metal halides, C 7 H 18 N 2 SbX 5 (where C 7 H 18 N 2 represents 1-Isopropylpiperazine and X = Cl, Br, I), designed by coupling a flexible diammonium cation with highly distorted Sb halide polyhedra. Single crystal analysis reveals that C 7 H 18 N 2 SbCl 5 consists of discrete tetrameric clusters, while its Br and I counterparts contain edge sharing dimeric [Sb 2 X 10 ] units. Under UV light, the pristine C 7 H 18 N 2 SbCl 5 is nonemissive at room temperature but exhibits reversible, stimulus-induced turn-on luminescence: grinding, hydrostatic pressure, heating, or solvent treatment trigger broadband orange emission. Temperature and pressure dependent photoluminescence, along with structural analyses, show that these external stimuli induce local angular distortions in the Sb–Cl polyhedra and reorganize the hydrogen bonding network, while maintaining the overall framework. Density functional theory calculations indicate that the emission is related to Cl 3p to Sb 5s/5p transitions, with lattice distortions stabilizing self-trapped excitons and suppressing nonradiative decay. Polymer composites based on C 7 H 18 N 2 SbCl 5 exhibit thermally rewritable, solvent-controlled, and mechano-responsive luminescence patterns.
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