JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.7
Chun Sun,Jiazhi Cui,Zhengtao Qiu,Jiabao Bai,Chao Fan,Dan Huang,Guohua Jia
Perovskites have attracted considerable interest as potential photocatalysts for sustainable hydrogen generation. Nonetheless, their intrinsic instability in aqueous media significantly constrains their practical deployment in photocatalytic hydrogen evolution. To address this challenge, we propose a versatile strategy for stabilizing Cs 3 Bi 2 Br 9 (CBB) perovskite photocatalysts through combining zwitterionic ligand encapsulation with Sn 4+ doping. The zwitterionic ligand, synthesized by reacting 4-bromobutyric acid (BBA) with oleylamine (OLA), was employed to passivate the perovskite surface by anchoring to both Bi 3+ and Br − sites, effectively mitigating surface defects. Notably, Sn 4+ doping is essential for aqueous stability, as the incorporation of Sn 4+ not only enhances the intrinsic stability of CBB but also reinforces the binding affinity of surface ligands. As a result, the Sn 4+ -doped CBB (CBBS x ) with ligand encapsulation demonstrates remarkable stability, retaining its structural integrity in water for over six months and withstanding more than three cycles of photocatalytic testing. Importantly, this strategy demonstrates considerable generality, as it can be readily extended to the synthesis of other halide perovskites. Specifically, the MoS x -loaded Sn 4+ :Cs 3 Bi 2 Br x I 9-x (MoS x /CBBIS 0.2 ) composite achieves a remarkable hydrogen evolution rate of 18.2 mmol h −1 g −1 , which represents the highest performance reported to date among Bi-based perovskite photocatalysts.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9
Zhiyuan Ren,Bin Li,Yufeng Wu,Hui Liu,Feng Guo,Shaonan Tian,Jun Yang
Upcycling e-waste to enable efficient catalyst synthesis offers a sustainable pathway for solid waste management and the advancement of green catalysis. However, reconciling high catalytic performance with e-waste-derived materials remains challenging. Here, we report a low-cost, defect-engineered InOOH electrocatalyst derived from electronic waste (ew-InOOH/Vo-Sn), which is modulated through Sn incorporation and oxygen vacancy (Vo) engineering using In-dodecylamine (In-DDA) complexes derived from spent liquid crystal display panels (s-LCD), for the electrochemical CO 2 reduction reaction (eCO 2 RR). The material was rationally synthesized through theory-guided optimization of InOOH via Sn-incorporation and vacancy engineering, combined with the utilization of In-DDA complexes obtained from s-LCD leachates using a thiol-assisted wet-chemical strategy. At −0.97 V vs RHE, the ew-InOOH/Vo-Sn delivered a high formate Faradaic efficiency (FE formate ) of 92.8%, closely approaching that of the corresponding sample prepared from pure metal-salt precursors (ms-InOOH/Vo-Sn, 94.5%) under identical synthetic conditions, and comparable to the majority of In-based eCO 2 RR catalysts reported in the literature. Mechanistic insights reveal that Sn-incorporation stabilizes Vo in InOOH and synergistically alters the electronic states of neighboring In atoms, which strengthens CO 2 adsorption while optimizing the adsorption energetics of *OCHO and H* intermediates. Our findings demonstrate a sustainable pathway to design In-based electrocatalysts from electronic-waste, integrating resource recycling with energy conversion.
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Laser & Photonics Reviews
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2026
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IF 10
Zhipeng Xu,Haoran Chen,Yue Liu,Xiang Zhou,Dechao Yu,Xiaobin Xie,Chunchao Hou,Bohua Dong,Lixin Cao,Chenghui Xia
Near-infrared-emitting copper-based I-III-VI quantum dots (QDs) hold significant promise for photonics and bioapplications, yet their broad photoluminescence (PL) emission severely limits color purity and device efficiency. Herein, we report a hierarchically staged synthesis that decouples and sequentially suppresses defect- and phonon-induced broadening. Starting with Zn-poor CuInSe 2 QDs via cation exchange, we introduce Zn 2+ alloying to passivate cation vacancies and homogenize composition, forming a defect-minimized core. Subsequent epitaxial overcoating with a thick ZnS shell strongly localizes excitons, evidenced by suppressed thermal quenching and dominant coupling to a higher-order longitudinal optical ( LO ) phonon mode of ZnS ( E LO ≈ 141 meV). This shifts recombination from defect-assisted to near-band-edge emission, yielding CuInZnSe/ZnS QDs with an ultranarrow linewidth of 111 meV, high PL quantum yield of 73%, and minimal Stokes shift of 42 meV at 977 nm. When integrated into luminescent solar concentrators, these QDs enable an optical efficiency of 8.81% and a power conversion efficiency of 2.79%, underscoring their practical utility. Beyond reporting materials, this work provides profound insights into the interplay of exciton confinement and defect engineering, establishing a general and instructive strategy for achieving high color purity in multinary QDs.
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APPLIED SURFACE SCIENCE
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2026
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IF 6.9
Peng Chen,Keke Hu,Xinyu Lin,Zhongliao Wang,Yumeng Zhang,Qinzhuang Liu,Zhongliang Liu
Zero-dimensional metal halide perovskites with strong self-trapped exciton (STE) emission are promising for efficient lighting and sensing, but STE → dopant energy transfer is not well quantified. Here we use Sb 3+ -doped Cs 4 PbCl 6 nanocrystals as a model and combine temperature-dependent steady-state and time-resolved photoluminescence, rate-equation analysis and first-principles calculations to clarify the STE → Sb 3+ cascade sensitization. Emission and excitation spectra confirm successful Sb incorporation. The 360 nm ultraviolet band is assigned to STE recombination, whereas the green band originates from STE → Sb 3+ transfer and the Sb 3+ 3 P 1 → 1 S 0 transition. The transfer efficiency (∼64 %) shows that STE feeding dominates the excitation of Sb centers. Low-temperature PL analysis reveals distinct electron–phonon coupling: STE emission couples mainly to low-frequency phonons, while Sb 3+ emission couples more strongly to high-frequency modes. The extracted activation energies and the cooperative increase of τ STE and τ Sb with decreasing temperature support a thermodynamically downhill STE → Sb 3+ migration. Within a rate-equation framework, the rise time of Sb 3+ emission satisfies t rise ≈ τ STE and yields a characteristic cascade-like transient profile. Density-functional calculations indicate Sb-5p acceptor levels inside the bandgap, providing an energetic basis for localized STE → Sb 3+ coupling and design guidelines for efficient 0D perovskite emitters.
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ACS Nano
·
2026
·
IF 16
Xiulin Xie,Gaoyu Liu,Yu Zhang,Yiqing Yang,Wentao Niu,Ouyang Lin,Yangyang Bian,Jin Lu,Shengli Zhang,Aiwei Tang
I–III–VI group semiconductor nanocrystals (NCs) with narrow-bandwidth emission have emerged as promising candidates for display technologies due to their tunable emission wavelength and eco-friendly composition. Herein, Ga-rich Ag–In–Ga–S (AIGS) NCs exhibited a narrow photoluminescence emission with a full width at half maximum (fwhm) of 29 nm, which was derived from In-rich Ag–In–Ga–S NCs with an fwhm of 113 nm via a cation exchange strategy. The evolution process was studied systematically using steady- and transient-state spectroscopic techniques, revealing that the narrow photoluminescence (PL) bandwidth primarily originated from free-to-bound radiative recombination. The result was consistent with first-principles calculations. Furthermore, the electroluminescent devices based on AIGS NCs showed a record narrow electroluminescent bandwidth of less than 30 nm, and the maximum external quantum efficiency (EQE) could reach up to 1.2%.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.3
Tianyu Luo,Sisi Liu,Aoshen Wei,Junlin Wang,He Li,Yong Xia,Xiaoyan Wen,Haifei Lu,Ming-Yu Li
Lead sulfide colloidal quantum dots (PbS CQDs) are potential optoelectronic semiconductor materials for short-wave infrared (SWIR) photodetectors owing to their tunable bandgap, high absorption coefficient, and monolithic integrability with silicon readout circuits. However, incomplete surface passivation of {100} facets in large-size PbS CQDs (diameter > 4 nm) and ubiquitous halide ions migration in CQDs films have resulted in high dark current in PbS CQDs SWIR photodetectors. Herein, a dual ligands passivation combined with in-situ oxidation strategy is proposed to improve the surface passivation of CQDs and suppress the ions migration process. The advanced dual ligands could effectively passivate the polar {111} and non-polar {100} facets to reduce trap states in CQDs films, while the subsequently controllable thermal process could restrict the ions migration by interrupting the transport pathway to improve stability. The resultant PbS CQD infrared photodetectors exhibit remarkably reduced dark current and maintain almost unchanged photoresponse. The optimized photodetector exhibits a responsivity of 22.88 mA/W and a specific detectivity of 1.14 × 10 11 Jones at 1300 nm under a 1 V bias, demonstrating an alternative approach toward high-performance SWIR photoelectronic devices.
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JOURNAL OF MATERIALS SCIENCE
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2026
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IF 3.9
Wang Rong,Tian Xiao-Li,Li Jin,Chen Jia-Jia,Hu Yue,Zhang Ji
Ferroptosis is a non-apoptotic form of cell death that offers unique advantages in various cancer therapies. Gene therapy, on the other hand, involves transferring therapeutic genes into cancer cells to regulate related proteins and exert therapeutic effects. Nanomaterials that combine the ability to induce ferroptosis in cancer cells with gene delivery functionality hold great potential for tumor therapy. Herein, we designed and synthesized a series of ferrocene-containing (Fc) cationic lipids (NFC-1~4) based on the Ugi reaction. Fc, as a typical Fenton reaction catalyst, can effectively trigger ferroptosis in cancer cells. The results showed that NFC-1~3 lipoplexes could be efficiently taken up by A549 cells and exhibit excellent gene transfection capabilities, with the best transfection efficiency surpassing that of Lipofectamine 2000. Reactive oxygen species (ROS) detection experiments revealed that NFC-2 possesses Fenton characteristics, enabling it to induce the Fenton reaction and produce ROS. In vitro antitumor experiments demonstrated that NFC-2 LNPs could inhibit tumor cell growth to some extent, with its efficacy significantly enhanced after DNA encapsulation. Mechanistic studies indicated that the Fenton reaction mediated by NFC-2@DNA lipoplexes converted endogenous H 2 O 2 into highly toxic ·OH, leading to increased intracellular ROS levels, glutathione (GSH) depletion, and inactivation of glutathione peroxidase 4 (GPX4). The disruption of the cellular redox balance caused excessive accumulation of lipid peroxides (LPOs), ultimately inducing ferroptosis. NFC-2 holds promise as an efficient ferroptosis agent and a dual-function lipid for co-delivering DNA, offering potential for combined gene therapy and ferroptosis-based cancer treatment. Graphical abstract
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MICROCHEMICAL JOURNAL
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2026
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IF 5.1
Yu Jiang,Chen Xue,Wenrui Sun,Yifan Chen,Wenxun Zheng,Wenkuan Li,Yong Pan
Developing high-performance Triethylamine (TEA) sensing technology is of great significance for industrial production safety, environmental protection and occupational health. In this work, a simple, low-temperature and highly selective TEA sensor based on bimetallic AuPt-sensitized In 2 O 3 nanofibers (AuPt-In 2 O 3 ) was designed. Pristine In 2 O 3 nanofibers were prepared by electrospinning, and AuPt-In 2 O 3 nanofibers were further synthesized via combination of one-step thermal injection and ultrasound self-assembly. The results show that the optimized AuPt-In 2 O 3 modified sensor exhibits high sensitivity to TEA at 200 °C, with a faster response time (6 s) and higher response value (Ra/Rg = 5.56) towards 1 ppm TEA than pure In 2 O 3 sensor, which is attributed to the combined effects of spillover, synergistic catalysis and novel heterojunction formation. Endowed with a wide detection range (0.5 ppm - 200 ppm), good short-term repeatability, 35-day long-time stability and anti-interference ability in complex gas environments, the sensor is highly practical for seafood freshness detection and industrial TEA leakage identification, which can effectively support TEA monitoring to mitigate related risks.
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Advanced Powder Materials
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2026
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IF 24.9
Maoyuan Huang,Haiyang Li,Jie Zhao,Bo Tan,Shiliang Mei,Wanlu Zhang,Pengfei Tian,Ruiqian Guo
Indium phosphide (InP) quantum dots (QDs) have gained global research focus owing to their eco-friendly properties and outstanding optical characteristics. However, blue emission of InP QDs has made slow progress owing to surface defects and lattice mismatch between core and shell. Meanwhile, the ferromagnetism of traditional dilute magnetic semiconductors (DMSs) is limited by insufficient Curie temperature, failing to meet practical applications. Herein, we report Cr 3+ -doped InP/ZnS QDs with dual functions of pure blue emission and room-temperature ferromagnetism. By using hot injection method, Cr 3+ ions are precisely embedded into the core-shell interface of QDs, effectively passivating the surface defects of the InP cores. This approach enables the fabrication of pure blue-emitting QDs with an emission of 471 nm, a photoluminescence quantum yield (PLQY) of 52%, and a full width at half maximum (FWHM) of 46 nm. Through the dominance of ferromagnetic superexchange interaction, synergizing with the intrinsic strong local magnetic moment of Cr 3+ and quantum confinement effect, room-temperature ferromagnetism is achieved in InP-based QDs for the first time (Curie temperature above 350 K and maximum coercivity of 95.45 Oe). This work provides new materials for spintronic devices, and the Cr 3+ doping strategy also offers a reference for the opto-magnetic regulation of III-V QDs.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 3.9
Feng Min,Bai Zhongchen,Chen Qixin,Peng Xishun,Li Xinghua,Zhang Zhengping
In this study, we selected CsPbBr 3 quantum dots (QDs) as a modification layer of CsPbBr 3 /Carbon interface to facilitate their charge transfer for enhancing the photoelectronic conversion efficiency of ZnO/CsPbBr 3 /carbon solar cell. The results demonstrated that CsPbBr 3 QDs layer simultaneously improved film morphology, composition, and optoelectronic properties. This was achieved by filling pinholes, enlarging grain size, suppressing secondary phases, tuning elemental stoichiometry, enhancing electron transport, and reducing non-radiative recombination. The optimized device achieved an increase in PCE from 5.46% to 7.27%. This method and structure of solar cell we proposed in this paper provides a novel strategy for improving high-performance and high-stability PSCs.
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Letters in Drug Design & Discovery
·
2026
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IF 1.6
Chunxiu Tian,Ruihua Wang,Yuewei Li,Yuxia Gao
Background Atherosclerosis is a leading cause of cardiovascular morbidity and mortality. It is initiated by endothelial injury and progresses through persistent oxidative stress, endothelial senescence, and macrophage foam cell formation. Although current therapies primarily target lipid metabolism and inflammation, effective strategies that catalytically eliminate reactive oxygen species (ROS) and alleviate vascular senescence remain limited. Objective This study aimed to develop biocompatible copper indium selenium nanozymes (CIS NPs) with antioxidant enzyme-mimicking activities and evaluate their therapeutic potential against oxidative stress, cellular senescence, and atherosclerosis progression. Methods CIS NPs were synthesized and comprehensively characterized for morphology, crystallinity, elemental composition, and colloidal stability. Their superoxide dismutase (SOD)- and glutathione peroxidase (GPx)-like catalytic activities were evaluated in cell-free systems. The antioxidant and anti-senescent effects of CIS NPs were investigated in hydrogen peroxide-induced human umbilical vein endothelial cells (HUVECs). Their effects on foam cell formation were assessed in RAW 264.7 macrophages using Dil-oxLDL uptake and Oil Red O staining. Therapeutic efficacy and biosafety were further evaluated in high-fat diet-fed ApoE -/- mice. Results CIS NPs exhibited dual SOD- and GPx-like catalytic activities, enabling sequential scavenging of superoxide anion (O 2 • − ) and hydrogen peroxide (H 2 O 2) . In HUVECs, CIS NPs significantly reduced intracellular ROS levels, attenuated oxidative injury, and alleviated cellular senescence, as evidenced by decreased SA-β-gal staining. In RAW 264.7 macrophages, CIS NPs reduced Dil-oxLDL uptake and lipid accumulation, thereby suppressing foam cell formation. In ApoE -/- mice, repeated intravenous administration of CIS NPs markedly decreased atherosclerotic plaque burden, vascular ROS accumulation, and senescent cell abundance, without obvious abnormalities in the preliminary histological, biochemical, and hemolysis assessments. Conclusions CIS NPs function as efficient antioxidant nanozymes that mitigate oxidative stress, endothelial senescence, and macrophage foam cell formation. By targeting multiple pathological processes involved in atherosclerosis, CIS NPs effectively attenuate disease progression in vivo and represent a promising nanotherapeutic strategy for the prevention and treatment of atherosclerosis.
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ACS Nano
·
2026
·
IF 17.3
Zhang Huan,Liu Minrui,Zhou Zhongqin,Ye Pengfei,Wen Lingyi,Feng Quanqing,Song Ningning,Wang Yanyun,Ma Guohang,Sun Ran,Zhang Kun,Wu Qihong,Zhang Meng,Wang Yining,Guo Yingkun,Fan Haiming
Accurate
magnetic resonance imaging (MRI) of microvascular
occlusive
diseases, exemplified by subsegmental pulmonary embolism (SSPE), remains
a clinical challenge because of the intrinsic limitations of clinically
available Gd-based small molecular contrast agents (CAs). Ultrasmall
iron oxide nanoparticles (USIOs)-based CAs have emerged as promising
alternatives, offering adjustable MRI T 1 relaxivity, favorable pharmacokinetics, and high biocompatibility;
however, their performance is critically hampered by inefficient atomic
utilization for MR T 1 relaxivity enhancement.
Herein, we report Mg-doped USIOs MRI CAs with high atomic utilization
efficiency, where incorporating a biocompatible Mg dopant into surface
octahedral-site Fe vacancies substantially boosts the T 1 relaxivity, enabling accurate detection of SSPE-associated
structural and perfusion abnormalities. The Mg 0.03 -USIOs
exhibit a 261-fold enhancement of T 1 relaxivity
contribution by the Mg dopant, achieving an exceptionally high T 1 relaxivity of 12.6 mM −1 s −1 . Such a high atomic utilization efficiency could
stem from the promoted spin polarization and ferromagnetic spin alignment
through the surface Mg doping, which considerably boosts the magnetic
moment and outer-sphere relaxation contribution. Further in vivo MRI studies in a pig SSPE model demonstrated that the
Mg 0.03 -USIOs enabled visualization of structural and perfusion
abnormalities in SSPE, far surpassing the capabilities of Gd-based
CAs. In vivo biosafety assessment in the pig model
confirmed the high biocompatibility of Mg 0.03 -USIOs. Our
findings provide a highly efficient doping strategy to construct high-performance
USIOs-based T 1 CAs for sensitive MRI of
microvascular structural and functional abnormalities.
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