SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Jiangnan Wang,Zixi Zheng,Lu Liu,Jianming Pan
Self-propelled nanomotors exhibit significant propulsion capabilities, which can enhance the efficiency of uptake of lead pollutant at low concertation. However, a persistent challenge remains in establishing effective speed control over nanomotors, as the movement of most motors is predominantly reliant on the concentration of available fuel. To adjust the speed of a halloysite-nanotube-based nanomotor, a temperature-responsive polymer brush is chemically grown onto the halloysite nanotubes (HNTs). This modification allows for the enlargement or constriction of the HNTs cavity in response to temperature change. Chemical modification on HNTs improves the effect of lead removal by increasing the adsorption sites, making it easier for grabbing ion. The mobility and adsorption abilities of the synthesized HNTs nanomotor exhibit significant variations at approximately 45 °C. To further study the adsorption capacity of Pb (II) by HNTs nanomotor reached an optimal level at a pH of 5.0 and peroxide concentrations of 5.0 wt%, reaching up to 49.936 mg g −1 , with saturation occurring within 40 min. We successfully fabricated nanosized self-propelled motors, the motion of which can be reversibly controlled by a thermally responsive brake, resulting in a lead removal efficiency of 98 %. Furthermore, 90 % of the original adsorption capacity was maintained after five repetitions. We envision that such artificial responsive nano systems could have significant applications in the controllable cargo transportation. The prepared material exhibited favorable biocompatibility, providing new research insights into the design and application of nanomotors in removing of Pb (II) from the bloodstream.
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CHEMICAL ENGINEERING SCIENCE
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2025
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IF 4.3
Jiejie Meng,Lingzheng Bu,Duo Wang
The paper presents the design of an electrocatalyst named Mo-Pt/Ni-CNTs, which combines the advantages of strong metal-support interaction and the synergistic effect of active sites. In a three-electrode electrochemical measurement, the Mo-Pt/Ni-CNTs demonstrates a lower overpotential of 29.2 mV at 10 mA cm −2 , and a favorable Tafel slope of 33.7 mV decade −1 in comparison to Pt/C catalyst in 1.0 M KOH. Furthermore, the anion exchange membrane water electrolyzer cell achieves a low cell voltage of 2.41 V at 2 A cm −2 (in 1.0 M KOH solution at 80 °C). In-situ Raman analysis and DFT calculations reveal that introducing Mo atoms into the Pt sites and loading them onto the special carbon nanotubes, which are wrapped nickel (Ni-CNTs), can not only change the Pt valence state and electrical structure, but also form the strong metal-support interactions between Mo-Pt nanoparticles and Ni-CNTs.
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Journal of Physical Chemistry C
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2025
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IF 3.2
Chenhao Wu,Hao Hu,Zhen Fang,Hao Shan,Jiakang Tian,Zhenpeng Yao,Wenpei Gao,Wen Shang,Tao Deng,Jianbo Wu
Icosahedrons with a high density of twin boundaries exhibit high performance in oxygen reduction reaction (ORR) but might be considered to exhibit poor stability due to the selective dissolution of Pd atoms from the cores through the twin boundaries. Here, we utilize in situ liquid cell transmission electron microscopy (LC-TEM) to monitor the corrosion behavior of icosahedral Palladium@Platinum (Pd@Pt) core–shell nanoparticles in real time. We demonstrated that twin boundaries bring in numerous defects as the initial corrosion sites and high-strain agglomeration to accelerate the corrosion compared to the octahedrons. After the twin boundaries’ corrosion finishes, the high curvature (HC) path appears and plays a vital role during corrosion. Those insights help us to further understand the effect of twin boundaries on catalyst degradation and engineer durable morphology-controlled Pd@Pt nanoparticles.
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INORGANIC CHEMISTRY
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2025
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IF 4.7
Zilong Xu,Song Chen,Bingqian Zu,Xudong Wu,Guoqiang Liu,Liang Wu
Precise control over the stoichiometry and phase of tin sulfide (SnSx) nanomaterials is critical for their potential applications in energy conversion and storage devices, which remains challenging. Here, we report a precursor-mediated colloidal method to achieve phase-controlled synthesis of single-crystalline (SC) SnSx nanosheets. By employing Sn(acac)2Cl2/S and SnCl2·2H2O/1-DDT as precursors, hexagonal SC SnS2 nanosheets and orthorhombic SC SnS nanosheets were successfully synthesized, respectively. The photoelectrochemical (PEC) performance of both samples as photoanodes for water oxidation was further studied. The SC SnS2 nanosheet photoanode achieves a PEC performance of 1500 μA cm–2 at 1.23 VRHE with a half-cell solar-to-hydrogen conversion efficiency of 0.85%, outperforming the SC SnS nanosheet photoanodes. Meanwhile, this precursor-mediated method can be readily extended to the phase- and stoichiometry-controlled synthesis of other 2D nanomaterials, which hold great potential in photocatalysis and photoelectrochemical applications.
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ChemNanoMat
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2025
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IF 2.6
Zhixin Gao,Meng Yan,Zhen Sun,Teng Wang,Yaoming Zhang,Sen Lin,Yong Yang
Porous layered hydroxides has garnered significant attention for ion adsorption applications due to their unique combination of layered and porous structures. Herein, porous layered lanthanum hydroxide nanowires (NWs) is synthesized to efficiently adsorb Br − , utilizing the modulation of interlayer ions to optimize their performance. These NWs exhibit a porous surface structure and a positively charged surface, which increases the number of active sites and enhances their affinity for Br − . The layered hydroxide lanthanum acetate (LHL-acetate) NWs possess an adsorption capacity of 221 mg g −1 , a wide range of pH suitability (from 3.0 to 10.0) and remarkable stability, surpassing many previously reported adsorbents. The superior Br − adsorption performance of LHL-acetate NWs can be attributed to the synergistic effect between ion-exchange properties of interlayer anions and surface adsorption facilitated by the porous structure, which strengthens electrostatic interactions at the adsorbent-solution interface. Impressively, these NWs achieved 100% Br − removal from simulated wastewater with varying initial concentrations and flow rates in a fixed-bed adsorption system, highlighting the effectiveness of LHL-acetate NWs for advanced Br − removal in practical applications. This study reveals the structure-reactivity relationship of porous layered lanthanum hydroxide adsorbents and offers insights for the application of such materials in the adsorption domain.
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Journal of Physical Chemistry C
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2025
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IF 3.2
Ke Wang,Chaoqing Dong,Xiangyi Huang,Ke Gong,Xue Yang,Xuedan Zhang,Aidi Zhang,Jicun Ren
Quantum dots (QDs) were emerging as compelling candidates for optoelectronic applications, attributed to their unique size-tunable optical characteristics, narrow emission spectra, and superior photoluminescent quantum yield (PLQY). Notably, the low toxicity of InP materials makes them a promising alternative in the field of environmentally friendly optoelectronic components compared to QDs containing toxic elements (such as Cd, Hg, and Pb). However, synthetic conditions of InP QDs were extremely harsh, and the reagents were very expensive. In this study, we reported a new method for the synthesis of Gd-doped InP/ZnSe/ZnS QDs by using two inexpensive and low-reactivity phosphine precursors as the phosphorus source at a lower temperature. The InP QDs were synthesized via a one-pot solvothermal method, incorporating rare-earth Gd ions as dopants during the core growth process, and the influence of Gd doping on their stability was investigated. Gd:InP/ZnSe/ZnS QDs exhibited improved stability, as evidenced by their enhanced resistance to photo- and thermal degradation. And first-principles method reveals that Gd doping introduces shallow trap states that effectively passivates surface defects, which contribute to the overall stability of quantum dots. Furthermore, Gd:InP/ZnSe/ZnS QDs were integrated into QDs enhanced film (QDEFs) for LCD backlight display with excellent reliability performance over 2000 h.
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ACS Applied Materials & Interfaces
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2025
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IF 8.2
Shuwen Huang,Xiaoming Mo,Shulin Han,Huasong Liang,Lei Cai,Sheng Cao,Bingsuo Zou,Jinju Zheng,Jialong Zhao
High-performance pure-red perovskite light-emitting diodes (PeLEDs) are promising candidates for optoelectronic applications due to their remarkable photophysical properties. However, the unstable surface and insulating long-chain capping ligands of perovskite quantum dots (QDs) pose challenges to their commercialization by compromising stability and performance. Here, a simple but effective approach was demonstrated to synthesize highly stable red CsPbI3 QDs by introducing a multifunctional molecule, phenformin hydrochloride (PhenHCl), as an additive ligand. While the biguanide functional group in PhenHCl formed multiple hydrogen-bond interactions with the lead halide octahedron, the excess Cl– anions compensated for the iodine vacancies and eliminated trap states in the CsPbI3 QDs. The synergistic effect of the biguanide functional group and halogen compensation significantly passivated surface defects of the red CsPbI3 QDs, yielding a photoluminescence (PL) quantum yield of 98.6% and excellent ambient stability with 90% PL intensity retention over 80 days. The resulting pure-red PeLEDs based on the PhenHCl-treated CsPbI3 QDs were demonstrated to show a remarkable enhancement in the electroluminescence performance at around 649 nm, with an external quantum efficiency of 13.38%, and a maximum luminance of 2159 cd m–2. Our findings in this work provide an avenue by modulating the surface chemistry of CsPbI3 QDs to enhance the performance of pure-red PeLEDs.
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Nature Communications
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2026
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IF 18.1
Yin Tingting,Yuan Haoyang,Wang Qilin,Shen Zehao,Yin Shuai,Wang Fangmu,Kan Erjun,Jiang Wei,Ouyang Bo,Liu Guigao
Methane dry reforming offers a promising approach for converting CH 4 and CO 2 into valuable syngas, while its application is restricted by catalyst deactivation and carbon deposition. Here, we report a well-designed heterostructured plasmonic photocatalyst consisting of a plasmonically active Ag core and a catalytically active Ir cage selectively grown on the vertices and edges of the Ag core, which preserves strong plasmonic absorption and enables the significant concentration of electromagnetic energy on the Ir cage, as well as the selective dissipation of that energy to generate hot carriers. This heterostructured plasmonic photocatalyst demonstrates long-term stability (300 h), high selectivity (>97%), and much enhanced H 2 and CO production in light-driven methane dry reforming. We demonstrate that light-excited hot carriers, coupled with electron-enriched Ir sites, enhance the activation of CO 2 and CH 4 , and facilitate the conversion of *CH intermediates to *CHO, thereby preventing coke formation and contributing to the high catalytic performance.
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Materials Today Energy
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2026
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IF 8.1
Yang Wang,Yiling Feng,Yuxin Zhu,Yizhen Li,Chengjin Chen,Nanjia Yang,Wei Zhu,Zhongbin Zhuang
The electrochemical ethanol oxidation reaction (EOR) in acid offers a promising route for co-producing hydrogen and value-added chemicals, but suffers from severe Pt catalyst poisoning and poor stability. Herein, we report the synthesis of ultrathin PtNi nanowires (NWs) with abundant step defects for efficient and stable EOR. The PtNi NWs/C catalyst exhibits high mass activity (1.50 A mg Pt −1 @0.7 V vs. RHE), Faradaic efficiency (80% to acetic acid), and stability compared to the Pt NWs/C and Pt NPs/C counterparts. It has been demonstrated that the ultrathin NW structure endowed the PtNi NWs/C with high electrochemical active surface area and abundant step sites, while the incorporation of Ni facilitates the removal of poisoning CO and accelerates the EOR kinetics on Pt via the in-situ formation of Ni(III), leading to the superior performance. A practical electrolyzer using the PtNi NW as the anodic catalyst achieves 132 mA cm −2 at 0.8 V and sustains operation for 100 h.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Mengdi Song,Zhenjing Liu,Zhou Fang,Jiaqi Xu,Xinran Gao,Min Zhang,Kehai Liu
Olaparib (Ola) mediated maintenance therapy is regarded as the most important way to prolong the survival period of pancreatic cancer patients after chemotherapy. However, it only has a “synthetic lethal” effect on patients with BRCA mutations. This is because in tumors non-BRCA mutations, the homologous recombination repair (HRR) function still exists. Interference with the core protein RAD51 in the BRCA pathway can lead to defects in HRR, making patients with non-BRCA mutations sensitive to Ola treatment, which is expected to broaden the adaptation range of Ola. In this study, Bacillus Clausii ( B. clausii ) was utilized to obtain the engineered extracellular vesicles (eBEVs) carrying RAD51 siRNA and expressing G3-C12 polypeptide by transforming the co-expression plasmid, which will be used for embedding Ola. Therefore, a new type of oral drug delivery system eBEVs-Ola co-carrying Ola and siRNA was successfully constructed. Its gastrointestinal protection and intestinal epithelial crossing properties enable oral administration, while the G3-C12 targeting function enable pancreatic cancer concentration. After cell entry, RAD51 siRNA specifically silenced RAD51 to block HRR, and Ola simultaneously acted on the PARP enzyme and jointly inhibited DNA damage repair, thereby sensitizing non-BRCA-mutated pancreatic cancer cells to Ola through a synthetic lethal interaction. The results showed that eBEVs-Ola exhibited good targeting and maintenance therapeutic effects in the mouse model of human pancreatic tumor xenotransplantation, and had no obvious toxicity. eBEVs-Ola, as a safe and effective oral-administered drug delivery system, may provide a potential strategy for the maintenance treatment of patients non-BRCA mutations.
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SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2026
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IF 6.6
Guanwang Chen,Jianxiang Zhang,Peng Su,Nianben Zheng,Zhiqiang Sun
MXene-based nanofluids exhibit outstanding broadband solar absorption capabilities in direct absorption solar collectors (DASCs); however, nanoparticle aggregation at elevated temperatures poses challenges to their practical use. To address this limitation, we develop a dual-stabilization strategy for oil-based MXene nanofluids that combines self-dispersion and steric hindrance mechanisms. This innovative approach employs hydrazine hydrate intercalation (reducing particle size) with freeze-drying-induced surface crumpling to enhance the intrinsic self-dispersion capability of MXene. Concurrently, long-chain oleylamine ligands create spatial barriers that prevent direct contact between nanoparticles. This integrated approach effectively mitigates MXene aggregation driven by van der Waals forces, as evidenced by a mere 0.14 % reduction in absorbance (765 nm) after 120 h of thermal aging at 150 °C, while maintaining the initial particle size distribution. Furthermore, the optimized nanofluid demonstrates exceptional photothermal performance, achieving a solar-weighted absorption fraction exceeding 97 % at a concentration of 60 ppm with a 3 cm path length and an equilibrium temperature of 195.6 °C under 6 sun irradiation, 44 % higher than that of the base fluid. Additionally, the system exhibits consistent photothermal stability during cycling, with relative peak temperature fluctuations remaining below 3.1 % under concentrated irradiation (4 sun and 6 sun). These results highlight the nanofluid's excellent optical absorption and thermal stability within the medium to high-temperature range of 100 °C–200 °C, implying that the proposed stabilization methodology is promising for developing durable MXene nanofluids suitable for this operational window in solar thermal applications.
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Nature Energy
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2026
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IF 70.1
Zhao Qiangqiang,Zhang Bingqian,Hui Wei,Gao Kun,Ji Hongpei,Sun Xiuhong,Feng Xiaopeng,Peng Cheng,Wang Kaiyu,Gao Caiyun,Zhang Chenyang,Wang Han,Zhang Qi,Su Zhenhuang,Wang Xiao,Wang Li,Pang Shuping,De Wolf Stefaan,Wang Kai
Incorporating two-dimensional (2D) perovskite phases at the interfaces of three-dimensional (3D) perovskite solar cells improves device performance. These 2D structures form in the bulk and at interfaces of the perovskite film by adding long-chain ammonium salts into the perovskite, but achieving them exclusively at the buried interface remains challenging. Here we sequentially graft thioglycolic acid and oleylamine onto SnO 2 nanoparticles. The strong chemical bond between thioglycolic acid and oleylamine ensures that cation exchange with formamidinium iodide, a perovskite precursor, occurs only during thermal annealing, creating a 2D/3D perovskite structure solely at the bottom interface. This localized 2D layer accelerates 3D phase formation, enhances perovskite crystallization and reduces defect concentration at the interface by over tenfold. The resulting solar cells achieve power conversion efficiencies of 26.19% (certified 26.04%, 0.09 cm 2 ), 23.44% (aperture area of 21.54 cm 2 , certified 22.68%) and 22.22% (aperture area of 64.80 cm 2 ), respectively.
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