ACS Applied Energy Materials
·
2026
·
IF 5.5
Zhongshuo Li,Tingting Zhang,Zhangheng Lai,Yutao Mo,Zhengmao Luo,Ning Qi,Zhiquan Chen
SnTe is widely recognized as a promising alternative to environmentally harmful PbTe for thermoelectric applications at moderate and high temperatures. Nevertheless, due to the ultrahigh hole concentration as well as lattice thermal conductivity, the thermoelectric performance of pure SnTe is greatly constrained. In our work, a novel strategy was put forward to optimize the relatively poor thermoelectric performance of SnTe by simultaneously incorporating In2Se3 and Cd. The Seebeck coefficient was apparently improved through the whole temperature range originating from the introduction of resonant energy levels achieved by In doping, while lattice thermal conductivity was decreased to a relatively low level of ∼0.49 W m–1 K–1 at 873 K, owing to a decrease in sound velocity and strong scattering on phonon caused by nanopores and dislocations after doping. Profiting from the synergistic optimization thermoelectric performance strategies, a peak zT of 1.32 at 873 K was achieved in Sn0.96Cd0.04Te+1%In2Se3, which represents a remarkable 89% increase over pristine SnTe. And an average zT of 0.66 from 303 to 873 K was also obtained. Our work provides a new strategy for multifunctional synergistic modulation of the thermoelectric properties of SnTe-based materials.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Yihua Zhang,Sheng Xu,Wenting Li,Zhenghao Li,Jiali Cao,Lingli Liu,Jinlong Cui,Meng Cao,Heng Liu
A Cd(II)-imprinted electrochemical sensor based on CA-rGO/CS was constructed. • An extremely low detection limit of 0.05 μg/L was achieved. • The sensor exhibited excellent selectivity toward Cd(II) among interfering ions. • River water samples could be directly analyzed with high recovery rates (95%–102%). An ion-imprinted electrochemical sensor based on Cysteamine (CA)-reduced graphene oxide/chitosan (IIP/CA-rGO/CS/GCE) composite was constructed for the highly sensitive and selective detection of Cd(II) in aqueous solutions. The electrochemical performance of the sensor was systematically investigated using techniques such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV), and its detection efficiency in real water samples was evaluated. Experimental results indicated that this functional sensor exhibited a very wide linear detection range of 0.1–160 μg/L and an extremely low detection limit of 0.05 μg/L for Cd(II). It demonstrated excellent recovery rates (95%–102%) and good repeatability (relative standard deviation, RSD ≤ 3.86%) in real water samples. Additionally, this sensor combines high sensitivity, high selectivity, and outstanding adaptability to real-world samples, providing an innovative and efficient approach for the electrochemical analysis of heavy metal ions. Download: Download high-res image (116KB) Download: Download full-size image
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ACS Food Science & Technology
·
2026
·Vol. 6
·期 8
·2570-2583
·
IF 3
He Wanjun,Lv Danyu,Wu Qingxiao,Xu Huanyu,Guan Yongguang,Zeng Xin-An
Litchi
( L. chinensis Sonn.) is a
perishable fruit that is vulnerable to oxidative browning and fungal
infection. Herein, ferulic acid and natamycin were chosen as the antioxidant
and antimycotic agents, respectively. To improve their water solubility,
we used CD-MOF-1 to encapsulate ferulic acid. Meanwhile, natamycin
was encapsulated with gum arabic and pullulan. The most homogeneous
and stable natamycin nanocapsules were fabricated through stirring
0.5 mg/mL natamycin using 2.5% (w/v) gum arabic-pullulan (1:1, w/w,
1.25% each) in water. The main encapsulation mechanisms of ferulic
acid and natamycin were electrostatic interactions between the carboxyl
groups of ferulic acid and K + ions from CD-MOF-1 and hydrophobic
interactions between the macrocyclic lactone ring of natamycin and
the protein part of gum arabic, respectively. In addition, pullulan
was indispensable for stabilizing natamycin. The antioxidant and antifungal
composite sol presented 99.85% oxidation inhibition and 79.06% mycelial
growth inhibition and effectively delayed the oxidative browning and
fungal decay on litchi pericarps.
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npj Science of Food
·
2025
·Vol. 9
·期 1
·262
·
IF 7.8
Mou Linyun,Li Jianlong,Lu Ya
Cherries are highly susceptible to spoilage after harvest due to physiological and biochemical changes. This poses considerable challenges to food safety. Common fungal pathogens responsible for decay include Aspergillus niger and Cladosporium cladosporioides . Citral, an efficient antifungal agent, is thought to combat these pathogens through interactions with phytase (phyA) and N-myristoyltransferase (NMT), a hypothesis explored through molecular docking simulations. Using the Independent Gradient Model based on Hirshfeld partition (IGMH) analysis, it was found that citral encapsulated within α -cyclodextrin metal-organic frameworks ( α -CD-MOFs) forms strong van der Waals forces and exhibits hydrogen bonding. These interactions enhance the stability of the composite material. Incorporating citral-loaded α -CD-MOFs into a matrix of sodium alginate and pullulan resulted in a novel composite film. This film exhibits significantly improved flexibility and tensile properties, which is beneficial for fruit packaging. Meanwhile, the Higuchi and Ritger–Peppas models both indicate that citral is released by diffusion from a uniform polymeric matrix. When applied to cherry preservation, the film exhibited significantly better cherry preservation at 4 °C than at 30 °C ( P < 0.05). Simultaneously, the combination of low temperature with the film’s barrier properties and sustained antimicrobial release synergistically inhibited microbial growth and fruit metabolism, effectively delaying spoilage and supporting its application in both cold-chain and ambient-temperature transport.
研究领域:
食品科学与技术
·
采后生理学
·
高分子材料
·
活性包装
·
抗菌递送系统
·
分子模拟
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高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2025
·
IF 4.9
Ziwen Qin,Bo Nan,Lin Zhang
The detection of toxic heavy metal ions, such as cadmium (Cd 2 + ) and lead (Pb 2+ ), is crucially important due to their environmental persistence and severe health risks. While multi-walled carbon nanotubes (MWCNTs) hold potential for electrochemical sensing, their practical application is hindered by aggregation tendencies and limited analyte affinity. To address these limitations, a composite utilizing polydopamine-functionalized MWCNTs (PDA@MWCNTs) was developed. This material synergistically enhances dispersion stability and improves metal ion capture capabilities. Based on this composite, an electrochemical sensor was fabricated for simultaneous detection of Cd 2+ and Pb 2+ . Sensor characterization using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) demonstrated good performance, achieving high sensitivity and selectivity. Low detection limits of 0.21 nM for Cd 2+ and 0.13 nM for Pb 2+ were attained, enabling reliable simultaneous quantification. The electrochemical sensor’s practical utility was validated through accurate measurements in lake water sample and complex herbal medicine matrices, highlighting its applicability for environmental monitoring and food safety. This platform offers distinct advantages including simple fabrication, cost-effectiveness, and sub-nanomolar sensitivity necessary for regulatory compliance.
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WATER AIR AND SOIL POLLUTION
·
2026
·Vol. 237
·期 8
·496
·
IF 3.5
Tang Chuiyun,Yao Jun,Liu Xingyu,Lv Ying,Liu Jianli,Masakorala K.
Blast furnace slag (BFS) is an industrial by-product that generates large volumes of waste and poses potential environmental risks, necessitating its safe utilization. In this study, iron (hydr)oxide modified blast furnace slag (FBFS) was prepared by loading iron (hydro)oxides onto BFS for the remediate of lead (Pb) and cadmium (Cd) from aqueous solutions and soil. This adsorbent not only provides a novel approach for valorizing BFS but also prevents the agglomeration of iron (hydr)oxide particles, resulting in more surface functional groups (such as Fe–O and –OH) and an increased specific surface area. The results showed that the adsorption process of Pb fit the PSO and Langmuir models, and that of Cd followed the Elovich and Langmuir models. The maximum adsorption capacities of Pb and Cd by FBFS2 and FBFS6 in single-component system were 352.93, 395.15, and 112.34, 119.04 mg·g −1 , respectively. In binary system, Pb exhibited a stronger inhibitory effect on Cd adsorption. The underlying mechanisms, including ion exchange, complexation, precipitation, and flocculation. In addition, FBFS significantly reduced the bioavailability of Pb, Cd and Zn in the soil, decreased by 20.03%, 45.86% and 58.75%, respectively. This study suggests that FBFS is a promising candidate for the simultaneous remediation of heavy metals in both aqueous solution and contained soil.
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WASTE MANAGEMENT & RESEARCH
·
2024
·
IF 3.7
Yan Zhou,Wenhui Liu,Dandan Chen,Bangwei Liu,Ping Lu,Yiwei Zhang
A novel Fe/Ca-modified biochar (BC) derived from corn stalk was prepared in this study for the simultaneous adsorption and immobilization of arsenic, cadmium and lead in aqueous solution and soil, respectively. The adsorption experiment in aqueous solution indicated that 1Ca-Fe@BC exhibited excellent removal efficiency (R, %) towards arsenic (46.3%), cadmium (76.3%) and lead (93.6%). The presence of cadmium and lead could enhance the adsorption efficiency of arsenic by facilitating the formation of ternary complexes with it. Moreover, both cooperative and competitive effects occurred between cadmium and lead adsorption. When the distribution coefficient of cadmium and lead was equimolar, cooperative adsorption prevailed. However, when the distribution coefficient deviated from this balance, competitive adsorption dominated with a higher affinity for lead. The soil culture experiment demonstrated that the utilization of 1Ca-Fe@BC could enhance the stability of arsenic, cadmium and lead in soil by enhancing soil cation exchange capacity and pH while reducing dissolved organic carbon. The competitive and cooperative effects of arsenic, cadmium and lead in soil were consistent with those found in aqueous solution. The results showed that 1Ca-Fe@BC exhibited an excellent remediation efficiency for both arsenic, cadmium and lead-contaminated aqueous solution and soil.
研究领域:
环境科学
·
土壤学
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 1
·121008
·
IF 7.2
Bihe Chen,Ruoshan Yang,Mengyang Li,Yajing Niu,Jinyao Hu,Yingying Wang,Wenzhi Tang,Jingbo Zhou,Zhonghong Li
The threat of Pb(II) and Cd(II) in water demands advanced adsorbents. While metal-organic frameworks (MOFs) have demonstrated great potential for heavy metal ions adsorption, their microporous nature and powdery form limit practicality. Thus, we engineered a sodium alginate composite aerogel bead loaded with salicylic acid-modified defective NH 2 -MIL-125, for the efficient removal of Pb(II) and Cd(II) from aqueous solutions. By adjusting the solvent volume ratio to regulate the crystal morphology and introducing salicylic acid as a fragmented ligand to compete with NH 2 -BDC to coordinate with Ti-oxo clusters, a defective Ti-MOFs with mesoporous structure (pore size increased from 2.30 to 8.93 nm) and abundant active sites was successfully developed. Further integration with sodium alginate formed millimeter-scale aerogel beads, improving the reusability and enhancing adsorption performance: the maximum adsorption capacities of 428.01 mg g −1 for Pb(II) and 179.67 mg g −1 for Cd(II), respectively. The adsorption process, described by the pseudo-second-order kinetic and Sips isotherm models, is driven by multilayer chemical adsorption via electrostatic attraction, ion exchange and coordination reactions with −COOH, −NH 2 and −OH groups. The beads also exhibit excellent selectivity and reusability, maintaining high efficiency of ∼97 % for Pb(II) over 5 cycles. This work provides a promising strategy for designing high-performance and recyclable adsorbents for adsorbing heavy metal ions from water.
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WATER SCIENCE AND TECHNOLOGY
·
2016
·Vol. 75
·期 5
·1051-1058
·
IF 1.064
Jia Qiujin,Zhang Wanting,Li Dongping,Liu Yulong,Che Yuju,Ma Qinglin,Meng Fanjun
Hydrazinolyzed cellulose-graft-polymethyl acrylate (Cell-g-PMA-HZ), an efficient adsorbent for removal of Cd(II) and Pb(II) from aqueous solution, has been prepared by ceric salt-initiated graft polymerization of methyl acrylate from microcrystalline cellulose surface and subsequent hydrazinolysis. The influences of initial pH, contact time, and temperature on adsorption capacity of Cell-g-PMA-HZ as well as adsorption equilibrium, kinetic and thermodynamic properties were examined in detail. As for Cd(II) adsorption, kinetic adsorption can be explained by pseudo-second-order, while adsorption isotherm fits well with Langmuir isotherm model, from which maximum equilibrium adsorption capacity can be derived as 235.85 mg g −1 at 28 °C. Further thermodynamic investigation indicated that adsorption of Cd(II) by adsorbent Cell-g-PMA-HZ is endothermic and spontaneous under studied conditions. On the other hand, isotherm of Pb(II) adsorption fits well with Freundlich isotherm model and is more likely to be a physical-adsorption-dominated process. Consecutive adsorption–desorption experiments showed that Cell-g-PMA-HZ is reusable with satisfactory adsorption capacity.
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INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Chen-Yuan Ma,Xin-Mei Zeng,Jia-Tong Li,Xing-Yu Bi,Zhi Fang,Mei-Hong Duan
High-performance birefringent crystals are crucial for advancing modern optics. Regrettably, conventional birefringent crystals are usually limited by narrow transmission windows or insufficient birefringence. Recognizing that birefringence originates from structural anisotropy, we herein assembled anisotropic π-conjugated urea ligands through a cadmium-based open framework. By leveraging the distorted Cd-based octahedra and urea-derived hydrogen-bonding network, a novel birefringent crystal, Cd[C(NH2)2O]2Cl2, was successfully obtained. Cd[C(NH2)2O]2Cl2 was characterized by a characteristic 4 × 4 × 6 open-framework skeleton, wherein the repeating building unit {Cd[C(NH2)2O]2Cl4} is constructed by the oxygen sharing between distorted CdCl4O2 octahedra and planar [C(NH2)2O] groups. Notably, Cd[C(NH2)2O]2Cl2 achieved an excellent balance between wide bandgap and substantial optical anisotropy by exhibiting a short UV cutoff edge of 201 nm and a birefringence of 0.117@546 nm, which should benefit practical applications.
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2026
·
IF 7.9
Yuping Zhang,Shilei Wang,Ren Xiao,Shengyang Zou,Minghui Wang,Shilin Zhao,Jun Ma,Xiaoting Li,Yang Liao
Composite pollution arising from the coexistence of heavy metals and organic compounds in environmental systems is becoming increasingly prevalent. However, the marked differences in physicochemical properties between these two categories of pollutants render conventional materials inadequate for their simultaneous and efficient removal. In this study, a novel aminated biochar (NBC) was synthesized using water hyacinth as feedstock and triethylenetetramine as the modifying agent to achieve concurrent removal of Cd(II) and 2,4-dichlorophenol (2,4-DCP). The results demonstrate that NBC achieves removal efficiencies of 94.6% for Cd(II) and 92.8% for 2,4-DCP. Compared with pristine biochar, NBC exhibits a rougher surface, an enlarged specific surface area, and abundant –NH 2 and –CH 2 – functional groups. Mechanistic investigations reveal that the –NH 2 groups are capable of forming coordination bonds with Cd(II), while simultaneously engaging in N–H···O hydrogen bonding with the phenolic hydroxyl groups of 2,4-DCP. The –CH 2 – crosslinked framework confers excellent structural stability, as evidenced by sustained removal efficiencies of 80.34% and 75.67% for the two pollutants after eight regeneration cycles. Moreover, the 2,4-DCP adsorbed on the material surface can act as a π-electron donor, establishing cation–π interactions with free Cd(II) in solution, which further enhances the overall removal performance. This study offers a viable strategy for the simultaneous remediation of heavy metals and organic pollutants in complex environmental matrices. Download: Download high-res image (202KB) Download: Download full-size image
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ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Haoqi Liang,Yutong Yang,Yijia Wang,Zejun Deng
Escalating aquatic contamination by toxic heavy metal ions (HMIs) urgently requires field-deployable electrochemical sensors surpassing traditional methods. This work proposed a controllable synthesis of cobalt-embedded nitrogen-doped carbon/carboxyl-functionalized multi-walled carbon nanotube (Co@NC/CMWCNTs) composites through in situ growth of ZIF-67 on CMWCNTs, followed by optimized carbonization. CMWCNTs-directed morphological evolution was systematically demonstrated, revealing that with increasing CMWCNT ratios, the ZIF-67 crystallite size underwent an initial increase and later decay, and after carbonization, a unique knot-like interpenetrating architecture was formed with CMWCNTs as bridges and Co@NC as nodes. This synergistic structure significantly enhanced electrical conductivity and electrocatalytic activity, as evidenced by electrochemical characterization. Compared to the glassy carbon electrode (GCE), the Co@NC/CMWCNTs/GCE sensor exhibited a 12-fold reduction in charge transfer resistance (28.3 Ω vs. 346.8 Ω), a 21% larger electroactive surface area, and rapid heterogeneous electron transfer kinetics of 3.8 × 10⁻³ cm s -1 . The composite sensor allowed simultaneous detection of Cd²⁺, Pb²⁺, Cu²⁺, and Hg²⁺ in 0.1 M NaAc-HAc buffer (pH 4.5) with high sensitivities (169.7, 199.0, 135.9 and 108.0 μA·μM⁻¹ cm -2 ), low detection limits (40.0, 40.5, 87.5 and 106.2 nM) and observed cross-interference within 10%. This work establishes a materials design paradigm for MOF-derived electrochemical sensors for low-cost on-site environmental monitoring of HMIs.
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危险品化学品经营许可证（带存储）