RSC Advances
·
2023
·Vol. 13
·期 49
·34524-34533
·
IF 3.9
Suo Zhao,Qiao Wang,Jin Liu,Xianglong Hao,Xiao Liu,Wenfei Shen,Zhonglin Du,Yao Wang,Mikhail Artemyev,Jianguo Tang
In this study, ZnS capped Cu–In–S (ZCIS) quantum dots doped with Mn ions are synthesized by a thermal injection method, with luminescence covering almost the entire visible area. The large Stokes shift effectively inhibits the self-absorption effect under luminescence, and the quantum yield of ZCIS quantum dots increased from 38% to 50% after ZnS capping and further to 69% after doping with Mn. First, red-, yellow-, and blue-emitting quantum dots were synthesized and then, polychromatic ensembles were obtained by mixing the trichromatic quantum dots in a different ratio. Using the home-built inkjet printer, multilayered and multicolor mixed patterns were obtained for information pattern storage and multilayer pattern recognition and reading.
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高影响因子
ENVIRONMENTAL ENGINEERING SCIENCE
·
2016
·
IF 1.481
Qiang Li,Juhong Zhan,Bo Chen,Xiangqi Meng,Xuejun Pan
Long-root Eichhornia crassipes (L.R.E. crassipes), as a new kind of macrophyte, was used in Dianchi Lake in recent years, but its comparison in eliminating metals with traditional Eichhornia crassipes was never conducted. In this article, a comparative study on the removal of toxic metals from aqueous solutions by L.R.E. crassipes and E. crassipes was first studied. In total, the removal percentage of toxic metals followed the order of Pb>Cd>Cu>Zn, and L.R.E. crassipes was better than that with E. crassipes. Meanwhile, L.R.E. crassipes had a higher relative growth rate than E. crassipes, and solutions had a better physicochemical property after dealing with L.R.E. crassipes. Results also showed that maximum removal capacity for Zn, Cu, and Cd with L.R.E. crassipes was reached at pH 5. An orthogonal of L16 (44) in the multimetal system was designed to study the effects of cometals on removal of a single metal. Metal removal from the solution involves two stages: adsorption and absorption. Removal mainly occurred in the roots, and the main removal process was adsorption. Adsorption percentages of Pb, Zn, Cu, and Cd were 75%, 43%, 29%, and 61% in the root surface, respectively. Bioconcentration factors of Pb, Zn, Cu, and Cd were 267, 102, 230, and 173 with L.R.E. crassipes, respectively. Based on these results, L.R.E. crassipes could be used as a biodegradable absorbent to purify polluted water bodies fast and effectively.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Keer Chen,Ruyi Li,Shaowen Zhang,Yan Li,Bingkun Guo,Xiaolei Wang,Yang Liu
Despite their attractive cost and safety, achieving long-cycle-life aqueous Zn-MnO 2 batteries is still hindered by complex interfacial Mn chemistry, particularly Mn 2+ dissolution/redistribution that accelerates performance decay. The capacity of MnO 2 originates from the insertion and conversion of Zn 2+ , yet Mn 2+ dissolution has consistently been a critical factor undermining the performance of MnO 2 cathodes. Therefore, achieving simultaneous enrichment of Zn 2+ and Mn 2+ on the cathode surface remains a pressing need in aqueous Zn-MnO 2 batteries. In this work, an amide-based compound, N, N′-1,2-Ethanediylbis(benzamide) (EDB) is proposed as the cathode additive to exhibit limited selectivity in chelating both Zn 2+ and Mn 2+ ions on the surface of MnO 2 cathode, thereby synergistically enriching interfacial ions to boost capacity utilization and suppress Mn dissolution, leading to enhanced cycling stability. The Zn||EDB@MnO 2 cell exhibits a high specific discharge capacity of 465 mA h g −1 after 200 cycles at 308 mA g −1 , and excellent long-term cycling stability with retaining 83% of its initial capacity after 1000 cycles at 5 A g −1 . This study on cathode additives presents a novel and effective strategy for achieving high-capacity and long-cycle-life aqueous Zn-MnO 2 batteries, while also offering valuable insights into the design of functional additives for advanced energy storage systems facing challenges related to interfacial adsorption and surface-mediated reactions on electrodes.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 21.1
Yifei Liu,Kaicai Fan,Cheng-Hao Chuang,Porun Liu,Zumin Wang,Lingbo Zong,Lei Wang
The nanoconfined environment offers a synergistic combination of physical confinement and electronic regulation, yet its underlying microscopic mechanisms remain to be systematically elucidated. Herein, we fabricate atomically dispersed homonuclear Mn catalytic pairs through the perhalate cascaded oxidation strategy within nanoconfined pores on activated mesoporous carbon spheres (Mn 2 -N-AMC). Finite element method (FEM) simulations and density functional theory (DFT) calculations reveal that nanoconfinement enhances O 2 transport and weakens the adsorption of oxygen intermediates. Furthermore, the bridge adsorption configuration of intermediates on Mn pairs promotes the subsequent O* protonation and reduces the energy barrier for OH* desorption. Consequently, Mn 2 -N-AMC exhibits superior radical scavenging capability and delivers excellent oxygen reduction reaction (ORR) performance with a half-wave potential (E 1/2 ) of 0.90 V and remarkable stability. Additionally, Mn 2 -N-AMC-based aqueous Zn-air batteries (A-ZABs) achieve an ultrahigh power density of 256.7 mW cm −2 and long-life stability (> 800 h). Quasi-solid-state ZABs also display a long-life operation over 100 h across various current densities, with negligible voltage gap decay. This work provides mechanistic insights, advancing the rational design of nanoconfined ORR catalysts for sustainable energy conversion and storage.
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高影响因子
Acta Biomaterialia
·
2021
·
IF 8.947
Xian Tong,Wenhao Cai,Jixing Lin,Kun Wang,Lufan Jin,Zimu Shi,Dechuang Zhang,Jianguo Lin,Yuncang Li,Matthew Dargusch,Cuie Wen
Zinc (Zn)-based alloys have been considered potential biodegradable materials for medical applications due to their good biodegradability and biocompatibility. However, the insufficient mechanical properties of pure Zn do not meet the requirements of biodegradable implants. In this study, we have developed a biodegradable Zn−3Mg−0.7Mg 2 Si composite fabricated by high-pressure solidification. Microstructural characterization revealed that the high-pressure solidified (HPS) composite exhibited uniformly distributed fine MgZn 2 granules in an α-Zn matrix. Comprehensive tests indicated that the HPS composite exhibited exceptionally high compression properties including a compressive yield strength of 406.2 MPa, an ultimate compressive strength of 1181.2 MPa, and plastic deformation up to 60% strain without cracking or fracturing. Potentiodynamic polarization tests revealed that the HPS composite showed a corrosion potential of −0.930 V, a corrosion current density of 3.5 μA/cm 2 , and a corrosion rate of 46.2 μm/y. Immersion tests revealed that the degradation rate of the HPS composite after immersion in Hanks’ solution for 1 month and 3 months was 42.8 μm/y and 37.8 μm/y, respectively. Furthermore, an extract of the HPS composite exhibited good cytocompatibility compared with as-cast (AC) pure Zn and an AC composite at a concentration of ≤25%. These results suggest that the HPS Zn−3Mg−0.7Mg 2 Si composite can be anticipated as a promising biodegradable material for orthopedic applications .
研究领域:
生物医学工程
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材料科学
·
生物材料
·
骨科
·
可降解金属
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组织工程
·
腐蚀科学
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Junnan Liu,Qiuyang Luo,Shu Xia,Xingfu Yang,Jie Lei,Qi Sun,Xiaohu Chen,Jiaojing Shao,Xiaoning Tang,Guangmin Zhou
Structuring a stable artificial coating to mitigate dendrite growth and side reactions is an effective strategy for protecting the Zn metal anode. Herein, a Cu-Ag double-layer metal coating is constructed on the Zn anode (Zn@Cu-Ag) by simple and in-situ displacement reactions. The Cu layer enhances the bond between the Ag layer and Zn substrate by acting as an intermediary, preventing the Ag coating from detachment. Concurrently, the Ag layer serves to improve the corrosion resistance of Cu metal. During plating, the initial Cu sheets and Ag particles on the surface of Zn@Cu-Ag electrode gradually transform into a flat and smooth layer, resulting in the formation of AgZn, AgZn 3 , and (Ag, Cu)Zn 4 alloys. Alloys play a multifunctional role in inhibiting dendrite growth and side reactions due to decreased resistance, low nucleation barrier, enhanced zincophilicity, and strong corrosion resistance. Consequently, the Zn@Cu-Ag symmetric cell exhibits continuous stable performance for 3750 h at 1 mA cm −2 . Furthermore, the Zn@Cu-Ag||Zn 3 V 3 O 8 full cell achieves an initial capacity of 293.4 mAh g −1 and realizes long cycling stability over 1200 cycles. This work provides new insight into the engineering of an efficient artificial interface for highly stable and reversible Zn metal anodes.
研究领域:
材料科学
·
电化学
·
储能
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Chang Sun,Xin Yu,Shuqin Wang,Baowei Hu
Owing to their high density of active coordination sites, metal-organic frameworks (MOFs) have been extensively explored for uranium(VI) removal. However, the adsorption performance of pristine ZnHHTP is often limited by strong interlayer π-π stacking interactions, which reduce the effective porosity, hinder mass transport, and restrict the accessibility of uranium-binding sites. Herein, we demonstrate a facile ammonia-triggered assembly and etching strategy to construct defect-rich hierarchical pores within ZnHHTP nanostructures. Morphological and structural characterizations demonstrate that ammonia modulation introduces abundant mesopores into the originally low-porosity framework, creating a hierarchical architecture. This structural evolution leads to a significantly increased specific surface area, enriched defect sites, and enhanced surface hydrophilicity. Consequently, the optimized m-ZnHHTP-25 exhibits outstanding uranium(VI) elimination performance, reaching near-equilibrium within only 100 min and a remarkable maximum adsorption capacity of 521.41 mg·g −1 . Mechanism studies revealed a synergistic effect contributing to the enhanced performance. The hierarchical mesopores function as ion-transport channels, significantly accelerating the mass transfer kinetics. Moreover, the abundant and highly accessible defect sites function as high-density binding locations, where catechol oxygen atoms form strong chemical coordination bonds with UO 2 2+ . This study not only presents a promising candidate material for radioactive wastewater treatment but also offers a powerful protocol for rationally designing hierarchical porosity in porosity-deficient coordination networks for environmental remediation.
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高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 3.5
Cai He,Bingfeng Guo,Tong Li,Xiaoxia Jia,Yong Wang,Zhiyun Xiao
A rigid–flexible Zn-DMOF was developed for selective C 2 H 2 /CO 2 separation. • Activation-induced pore contraction enabled dynamic recognition of C 2 H 2 . • Zn-chdc-DABCO retained high C 2 H 2 uptake but greatly improved C 2 H 2 /CO 2 selectivity. • Efficient breakthrough separation was maintained under varying flow rates and humidity. Separating C 2 H 2 from CO 2 is challenging because of their similar sizes and physicochemical properties. Adsorption-based separation using metal–organic frameworks (MOFs) offer a promising alternative. Here, a rigid–flexible framework strategy is used to introduce guest-discriminating dynamic recognition into a 1,4-diazabicyclo[2.2.2]octane (DABCO)-based MOF (DMOF) platform by replacing rigid 1,4-benzenedicarboxylate with flexible trans-1,4-cyclohexanedicarboxylate, affording Zn-trans-1,4-cyclohexanedicarboxylic acid (chdc)-DABCO. Activation induces pore contraction and generates a confined environment that selectively strengthens C 2 H 2 binding while leaving CO 2 largely unaffected. As a result, Zn-chdc-DABCO preserves a C 2 H 2 uptake comparable to that of Zn-DMOF at 298 K and 100 kPa, yet displays markedly enhanced affinity toward C 2 H 2 , a distinct gate-opening response to C 2 H 2 , and little framework response toward CO 2 . The zero-coverage isosteric heat of adsorption reaches 43.9 kJ·mol –1 for C 2 H 2 , substantially higher than that for CO 2 (29.3 kJ·mol –1 ), and the equimolar C 2 H 2 /CO 2 ideal adsorbed solution theory selectivity reaches 8.2, more than four times that of Zn-DMOF. Dynamic breakthrough experiments further confirm efficient separation under mixed-gas, variable-flow, and humid conditions. This work shows that rigid–flexible cooperative design offers an effective route to overcoming the capacity/selectivity trade-off in difficult gas separations. A rigid–flexible Zn-DMOF was engineered to enable activation-induced pore contraction and guest-discriminating dynamic recognition, thereby achieving enhanced selective C 2 H 2 /CO 2 separation with efficient C 2 H 2 recovery. Download: Download high-res image (204KB) Download: Download full-size image
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Shengyuan Wang,Zhenheng Sun,Jiuzhou Wang,Xiaosha Cui,Sida Deng,Yupeng Liu,Yanji Chen,Guihua Zeng,Yanrong Wang,Zhenxing Zhang,Wei Lan,Erqing Xie,Yaxiong Zhang
Solid state conversion electrodes are promising for aqueous energy storage but are frequently constrained by sluggish interfacial kinetics, leading to a persistent energy-power trade-off and underutilized capacity at high rates. Here we propose a chemical mediation strategy in which dissolved [Fe(CN) 6 ] 4− /[Fe(CN) 6 ] 3− couples continuously regenerate an interfacial oxidant to chemically drive the α-Co(OH) 2 to CoOOH conversion, thereby rewriting the rate limiting solid state electrochemical step into an electrochemical-chemical cascade at the electrode/electrolyte interface. Electrochemical analyses and spectroscopy corroborate the spontaneous oxidative phase transformation and the mediator enabled pathway reconstruction beyond simple solid–liquid capacity superposition. To make this capacity boosting strategy practically efficient, we further tune the initial redox composition of the mediator couple to suppress shuttle driven self-discharge while maintaining fast interfacial conversion kinetics, as quantified by multi-potential-step measurement (MPSM) and visualized by in situ Raman mapping. Consequently, the redox-enhanced alkaline Zn-Co battery exhibits a remarkable areal capacity of 0.98 mAh cm −2 (a 96% enhancement), while simultaneously retaining a high energy density of 0.92 mWh cm −2 and an ultrahigh-power density of 75 mW cm −2 . This work highlights a functional electrolyte design route to unlock deep solid state conversion capacity under high-power operation in aqueous batteries.
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高影响因子
ACS Omega
·
2026
·
IF 5.2
Zai Dong,Xichang Wu,Tianhua Yu,Chaochan Li,Heng Zhang,Jie Wang,Armin Rezayan,Anping Wang
This study aims to improve the removal efficiency of heavy metal ions from wastewater. We utilized agricultural residues derived from Camellia oleifera shell and combined them with zeolitic imidazolate frameworks (ZIFs) precursors for synergistic modification. By introducing active components such as Zn and Co in situ using chemical reagents, followed by pyrolysis, co-carbonization, and KOH activation treatments, we prepared nine types of functionalized biochar (BCX-T). Their structural characteristics and adsorption performance toward Cu(II) and Cd(II) were systematically characterized. The results showed that BC8-500 exhibited an adsorption capacity of 31.61 mg/g for Cu(II), a 2.1-fold increase compared to unmodified biochar; BC9-500 exhibited an adsorption capacity of 111.43 mg/g for Cd(II), a 6.4-fold increase. The adsorption process was primarily driven by chemical adsorption and multilayer adsorption. The removal of Cu(II) by BC8-500 was mainly achieved through complexation, whereas the removal of Cd(II) by BC9-500 was primarily achieved through CdCO3 precipitation. This study provides a theoretical basis for the effective utilization of agricultural and forestry residues, as well as for the mitigation and management of environmental pollution.
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PubMed
高影响因子
Materials Chemistry Frontiers
·
2026
·
IF 8.1
Xiao Long Cao,Zhong Li,Kai Yu Yao,Fei Yue Wu,Bo Xin Hu,Tao Tang,Yin Fen Cheng,Yi Liang,Jing Hao Zhuang,Xin Yi Hu,Qi Zhang,Nianzhong Ma,Yao Yang Liu,Qing Wen Song,Qian Wang,Dazhi Chen,Jian Zhen Ou
Solid–liquid interface reactions offer a promising route for synthesizing two-dimensional (2D) metal oxides. Here, we demonstrate the in situ formation of Zn-nanoparticle-decorated 2D ZnO sheets through the simple sonication treatment of solid Zn metal in a pure aqueous environment. In this synthetic system, dissolved oxygen in water enables the mild surface oxidation of a solid Zn substrate, while the intrinsic lattice mismatch between metallic Zn and ZnO generates interfacial tensile strain, which ultimately promotes the exfoliation of ultrathin 2D ZnO nanosheets. Residual parent Zn that is incompletely oxidized during the reaction can grow in situ and firmly anchor to the surface of ZnO nanosheets, thereby achieving the natural construction of Zn/ZnO metal–semiconductor heterostructures. The resulting Zn/ZnO heterostructure forms Mott–Schottky contacts at the metal–semiconductor interface, leading to a built-in electric field that facilitates the efficient separation of photogenerated electron–hole pairs. Leveraging their optical absorption in the blue-to-ultraviolet range, the heterostructure exhibits remarkable room-temperature NO2 sensing under purple-light illumination. A response magnitude of up to 705.3% is achieved toward 10 ppm NO2, along with reversible and dynamic responses across a range of concentrations. Additionally, the sensor exhibits excellent repeatability, high selectivity, and a low detection limit of 50 ppb. This study demonstrates the potential of solid–liquid interfacial engineering for constructing metal–semiconductor heterostructures and advancing light-assisted high-performance gas sensing technologies.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123651
·
IF 7.5
Ying Hu,Yanan Wei,Qian Zhang,Xinyu Xu,Wenmeihui Zhao,Rongmei Liu,Guixiang Qian,Zhongliang Tian,Xiangwan Lai,Chao Yang
The extraction of lithium from high Na/Li ratio salt lakes brine remains challenging due to the similar physicochemical properties of Li⁺ and Na⁺. In this work, a LiMn 2 O 4 (LMO)-Zn mixed-ion battery system was constructed for electrochemical lithium extraction from high Na/Li brine. The electrochemical behavior and lithium extraction performance of the system under different Na⁺ concentrations, temperatures, and current densities were systematically investigated. The results demonstrated that the LMO-Zn system maintained stable electrochemical performance in 0.1 M LiCl + 4.0 M NaCl electrolyte. At discharge rates from 0.1 C to 0.75 C, the discharge potential only slightly decreased from 2.03 V to 1.94 V, indicating favorable rate capability and electrode stability. The titanium felt current collector exhibited an initial discharge capacity of 124.3 mAh g⁻¹ and a charge capacity of 139.5 mAh g⁻¹ . ICP analysis revealed that the Li⁺ concentration in the ZnCl 2 solution increased from 0 to 2.75 mg L⁻¹ after electrochemical cycling, while the Li⁺ concentration in the Li/Na mixed solution decreased from 10 to 6.87 mg L⁻¹ , confirming effective lithium extraction and enrichment behavior. Furthermore, XRD, XPS, SEM, and GITT analyses demonstrated the good reversibility and structural stability of the LMO electrode during cycling. This work provides a promising strategy for lithium extraction from high Na/Li ratio salt lakes brine.
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高影响因子
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