Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 3
·122854
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IF 7.5
Xishui Guo,Keqi Jiao,Kun Fan,Ying Hua,Jiahao Zhang,Jingyu Ren
In this study, Zn doped Cd 0.57 Mn 0.43 S (ZCMS) was synthesized via a hydrothermal method for efficient photocatalytic hydrogen production (PHE). The catalytic performance and mechanisms of ZCMS were studied by experiments and theoretical calculations systematically. The 8% Zn doped sample exhibited optimal performance, achieving a hydrogen production rate of 9.3 mmol·g −1 ·h −1 under visible light and retaining 86% of its photocatalytic activity after five cycles. Characterization and calculations indicated that Zn doping caused an upshift of the d -band center, enhanced the adsorption capacity of catalyst and enhanced charge carrier separation. Furthermore, Zn doping reduced the band gap of Cd 0.57 Mn 0.43 S (CMS) and broadened visible light absorption, which prolonged the carrier lifetime. This study provided an effective strategy for enhancing PHE performance of CMS through doping engineering.
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JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
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IF 4.4
Kaihuai Duan,Tao Yang,Zhongyou Xu,Yijie Sun,Huiyun Hu,Hu Yang,Zhenliang Xu
Self-supporting and degradable (Zn-MOF/SA/CNF) acts as multifunctional photoactive membrane. • Zn-MOF acts as a porous skeleton to enhance flux, SA as a binder, and CNF as a photo-Fenton catalyst. • Membrane shows 96–98% rejection of dye, 80% rejection of tetracycline and a flux of 50–60 L‧m −2 ‧h −1 ‧bar −1 . • Membrane shows antibacterial property, photo-Fenton induced flux recovery and acid-triggered regeneration. In this study, self-supporting multifunctional photoactive membranes with a sandwich structure were prepared via a green route using eco-friendly materials for water treatment. The Zn-BDC synthesized at 25 °C was employed to construct a strippable skeleton with high flux. Sodium alginate (SA) acted as both a binder and cavity filler to repair defects and enhance tensile properties. Meanwhile, C₃N₄-Fe₂O₃ (CNF) was synthesized and applied as a photo-Fenton catalyst. The results showed that both the membrane with SA on the top (MCS) and the membrane with SA in the middle (MSC) achieved over 98% rejection toward Congo red, Alcian blue, and nickel(II) phthalocyanine-tetrasulfonic acid tetrasodium salt, with a flux ranging from 50 to 70 L·m −2 ·h −1 ·bar −1 . While the MSC membrane displayed better photocleaning performance and mechanical flexibility than the MCS membrane. Its flux could be restored via the photo-Fenton reaction. Moreover, the MSC membrane also attained over 80% rejection of tetracycline with the assistance of the photo-Fenton reaction. Furthermore, the membrane showed over 95% dye rejection in ethanol and exhibited favorable antibacterial performance. In addition, the membrane could be dissolved in a citric acid solution, which offers a convenient strategy for membrane disposal or recycling. Collectively, this work provides a green and sustainable membrane candidate for water treatment applications. Download: Download high-res image (129KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Lingyu Chi,Yibo Cui,Hongli Yu,Dong Zhao,Ruibin Hao,Jing Zhao,Quanlin Liu
Mn-doped Zn-based metal halides have attracted increasing attention for applications in white light-emitting diodes and X-ray detection, due to their structural stability and excellent luminescence performance. In this work, two positional isomers, 3-aminopiperidine (3AP) and 4-aminopiperidine (4AP), were selected as A-site organic cations to synthesize four zero-dimensional Zn-based halides, (3AP)Zn X 4 and (4AP)Zn X 4 ·H 2 O ( X = Cl/Br). By incorporating Mn 2 + as luminescent centers, a series of highly efficient phosphors with narrow-band green emission were obtained. Spectroscopic comparisons show that the 4AP-based compounds exhibit better luminescence performance than those based on 3AP. According to Hirshfeld surface analysis, 4AP series features stronger hydrogen-bonding interactions, which enhance the structural rigidity of the crystal lattice and lead to higher photoluminescence efficiency and narrower full width at half maximum. Notably, three of the Mn-doped Zn-based compounds display pronounced X-ray radioluminescence, indicating they could be promising for X-ray detection and imaging applications.
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ADVANCED FUNCTIONAL MATERIALS
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2026
·
IF 19.9
Sibo Wang,Yue Zhang,Wanlong Wu,Quanwei Jiang,Hua-Yu Shi,Xiaoqi Sun
Aqueous Zn─S batteries are promising energy storage systems with high theoretical capacity and low cost. However, the direct conversion between S and ZnS at the cathode suffers extremely sluggish reaction kinetics, which further decay rapidly upon the increase of current density and active material loading. Facing these challenges, we herein present a bi-directional redox mediator strategy and identify a self-adjusted Cu-based candidate. It possesses two redox couples whose potentials are on either side of the thermodynamic redox potential of S/ZnS reaction while between its kinetic oxidation and reduction potentials. These alignments enable the bi-directional mediator to catalyze the charge and discharge processes using either redox couple, respectively. As a result, the sulfur cathode reaches a high capacity of 1629 mAh g −1 at 0.1 A g −1 . It also maintains 880 mAh g −1 after 500 cycles at 1 A g −1 , superior to rapid decay to 148 mAh g −1 after only 28 cycles with the mediator free cathode. Furthermore, with a high sulfur loading of 7.3 mg cm −2 and lean electrolyte of 7 µL mg S −1 , the Zn─S battery achieves a high areal capacity over 10 mAh cm −2 .
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Materials Today Chemistry
·
2026
·
IF 7.4
Haiqun Jin,Hongjie Tong,Chenxuan Mei,Haiping Lin,Kun Chen,Pu Wu
Cu/Zn-MOF nanozyme exhibits robust triple-enzyme activities. • It promotes healing by combining antibacterial, antioxidant, and pro-proliferative effects. • This work provides a strategy for designing multifunctional nanoenzyme platform for efficient wound therapy. The treatment of infected wounds is severely challenged by bacterial resistance and dysregulated healing processes. Herein, we report a bimetallic Cu/Zn-MOF nanozyme fabricated via a facile self-assembly strategy. The material exhibits robust triple-enzyme mimetic activity (superoxide dismutase (SOD), glutathione peroxidase (GPx), and ascorbate peroxidase (APx)) enabling efficient reactive oxygen species (ROS) scavenging to alleviate oxidative stress and inflammation. In vitro, Cu/Zn-MOF demonstrated potent, broad-spectrum antibacterial activity, primarily associated with disruption of bacterial nucleotide metabolism and energy homeostasis, while also promoting fibroblast proliferation and migration. In an infectious wound model, Cu/Zn-MOF treatment significantly accelerated wound closure, enhanced collagen deposition, and facilitated orderly tissue regeneration, achieving a healing rate of 93.4% by day 12. This work presents a versatile nanozyme platform that intelligently orchestrates the sequential stages of wound healing, offering a promising multi-functional strategy for regenerative medicine.
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POLYMER DEGRADATION AND STABILITY
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2026
·
IF 8.1
Shanshan Lin,Ge Yang,Xiaolin Zhao,Hailing Guo,Hao Wu,Ning Zheng,Svetlana Mintova,Zhibo Li
Polyethylene terephthalate (PET) glycolysis using heterogeneous catalysts is often limited by the poor accessibility of polymer chains to catalytic active sites, particularly in microporous systems. Herein, undercoordinated Zn Lewis acid sites were constructed on the external surface of ZSM-5 through controlled Zn modification, while strong interactions between Zn species and framework-associated Al enhance both Lewis acidity and catalyst stability. The resulting accessible Lewis acid sites facilitate polymer-catalyst contact, enabling complete PET conversion within 30 min under mild glycolysis conditions. The catalyst exhibited a high Zn utilization efficiency of 24.7 g PET ·g Zn -1 ·min -1 , maintained stable catalytic performance over 10 cycles with negligible Zn loss, and remained effective for post-consumer PET feedstocks. This work demonstrates that engineering the spatial distribution and coordination environment of Lewis acid sites is an effective strategy for heterogeneous polymer depolymerization.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124092
·
IF 7.5
Zhihui Li,Xiangyu Wang,Hua Jiang,Kexin Zhu,Zihan Li,Fuping Zeng
To address the environmental challenge of sulfur hexafluoride (SF 6 ), a CuO@ZnO catalyst was prepared from a Cu/Zn-BTC bimetallic precursor. This enabled a synergistic treatment system with sulfur element-catalyzed conversion and fluorine element-fixation. The experimental results show that under mild conditions of 500 °C and 0.2 MPa, during a 20 h catalytic process, the catalyst achieves a maximum degradation efficiency of 96.34% for 2% SF 6 , with high selectivity converting it to SO 2 , while fluorine was fixed as CaF 2 . In-situ XRD characterization and density functional theory (DFT) calculations revealed a key in situ activation process. Under NH 3 induction, CuO is reduced to metallic Cu, forming an optimal Cu@ZnO interface that enhances SF 6 adsorption and bonding. This significantly lowers the energy barriers for S-F bond cleavage and SO 2 formation. The rate-determining step, the energy barrier for SO 2 formation, dropped from 2.74 eV to 0.48 eV compared with CuO@ZnO, thus providing a kinetic explanation for the catalytic mechanism. Overall, this work offers a high-performance catalyst for SF 6 treatment and a new theoretical basis for designing MOF-derived materials for fluorinated greenhouse gas conversion.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Jingtao Chen,Siyuan Shao,Xiaoyan Lin,Dongze Li,Yingxin Wu,Yanting Zhou,Donghui Cai,Ziqi Wang
Zinc metal batteries have emerged as compelling contenders for next-generation energy storage systems, yet their practical viability remains severely hampered by intrinsic challenges associated with Zn metal anodes, such as uncontrolled dendritic growth, vigorous hydrogen evolution, and sluggish interfacial kinetics. Addressing these issues, we rationally engineer a coordination self-assembled multifunctional interphase (GSI) derived from gallic acid, which spontaneously constructs on the Zn surface via strong coordination interactions. The GSI interphase, enriched with densely packed phenolic hydroxyl and carboxyl moieties, acts as a multifunctional regulator: it offers abundant zincophilic sites to guide homogeneous Zn 2+ flux and significantly lowers the nucleation energy barrier, thereby enabling smooth and reversible Zn plating/stripping. Beyond ion-level modulation, the GSI firmly anchors onto the Zn substrate, preventing the direct contact between the Zn metal anode and aqueous electrolyte. More intriguingly, the gallic acid component exhibits a strong chemical affinity toward H 2 O molecules, enabling preferential displacement of active water from the inner Helmholtz plane (IHP), which fundamentally suppresses parasitic side reactions. Therefore, the functionalized anode achieves superior electrochemical performance, maintaining a prolonged cycling lifespan exceeding 1550 h at 1 mA cm −2 with an ultralow polarization voltage of merely ∼23 mV. This work not only unveils a simple yet powerful interfacial design strategy, but also offers critical insights into molecular-level manipulation of the Zn–electrolyte interface, paving the way toward next-generation, high-efficiency aqueous Zn-ion energy storage systems.
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PubMed
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DYES AND PIGMENTS
·
2026
·
IF 3.9
Xuemei Sun,Jiahao Li,Suyu Jiang,Lin Zang,Rong-Mei Kong,Yan Zhao,Weiheng Kong
The escalating incidence of antibacterial resistance presents a formidable challenge in managing bacterial infections. Traditional Zn-based antibacterial agents face limitations due to their reliance on ultraviolet activation and potential neurotoxicity. The combination of nanotechnology and traditional Chinese medicine (TCM) not only reduces the side effects of Zn 2+ but also enhances therapeutic efficacy. In this study, we synthesized Zn-baicalein nanoparticles (Zn-BE NPs) that self-assemble through chemical coordination, offering broad-spectrum antibacterial capabilities. The Zn component exhibited inherent antibacterial properties by disrupting the synthesis of bacterial metabolic enzymes and destroying genetic factors. Baicalein (BE), derived from Scutellaria , enhanced the NPs’ antibacterial efficacy by disrupting bacterial membranes and facilitating Zn 2+ influx, leading to cell wall rupture and metabolic disruption. In addition, Zn-BE NPs exhibited excellent photothermal conversion efficiency, enabling effective bactericidal action under near-infrared irradiation. This triple synergistic mechanism not only overcame the limitations of conventional Zn-based therapies but also sustained long-term antibacterial activity by preventing rapid bacterial metabolism. Our findings demonstrated that Zn-BE NPs could achieve complete bacterial eradication, showcasing expected potential in addressing antibacterial resistance. This research laid a foundation for the development of safer and more effective antibacterial agents, with implications for future applications in combating resistant infections.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Shuo Chen,Liang Zhang,Yuehui Chen,Weiyan Zhu,Jianhua Yan
The development of oxygen reduction and evolution reaction (ORR/OER) electrocatalysts for zinc-air batteries (ZABs) is impeded by insufficient stability. This study demonstrates progress in stabilizing the commercial OER electrocatalyst (RuO 2 ) by easily integrating a composite ORR electrocatalyst containing cobalt and Gd 2 O 3 nanodots, resulting in an advanced ZAB cathode. An in-situ formed Co-Gd 2 O 3 interface enhances the electronic environment of cobalt through strong metal-support interaction, thereby boosting intrinsic ORR activity and stability. Crucially, during battery cycling, Gd 2 O 3 and RuO 2 dynamically reconstruct to form a stable Gd 2 O 3 -RuO 2 interface. This facilitates directional electron transfer from Gd to Ru, effectively preventing excessive oxidation, dissolution, and structural collapse of RuO 2 under high-potential conditions, thus stabilizing the OER process. This synergistic “dual interface” strategy combines the in-situ constructed Co-Gd 2 O 3 interface with the dynamically reconstructed Gd 2 O 3 -RuO 2 interface, collectively enhancing the durability of ZAB cathode catalysis. Consequently, the assembled ZAB maintains stable cycling for 3485 cycles at 10 mA·cm −2 , demonstrating much longer stability than that of the commercial PtC/RuO 2 electrocatalyst.
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Small Methods
·
2026
·
IF 9.1
Pengfei Sun,Shu Zhang,Chengdong Fang,Qingquan Lin,Liubin Feng,Jiajia Chen
In this work, an agarose-polyacrylamide hydrogel electrolyte (APE) with an interpenetrating and hierarchically porous network is introduced to reconstruct solvation and interface dynamics for a high-performance Zn-S batteries. This structure results in a high ionic conductivity of 42.1 mS cm −1 and a Zn 2+ transference number of 0.64. Molecular dynamics reveal that most H 2 O and SO 4 2− are excluded from the outer Helmholtz plane, forming an optimized electric double layer on Zn surface. Consequently, a prolonged 1200 h Zn plating/stripping behavior is obtained with 1 mAh cm −2 at 1 mA cm −2 , and a high Zn plating of 20 mAh cm −2 at 5 mA cm −2 . Furthermore, APE modulates the nucleation mode of ZnS, converting the originally sluggish and non-uniform progressive nucleation into a rapid and uniform instantaneous nucleation. As a result, this hydrogel Zn-S batteries deliver a capacity of 895 mAh g −1 and 91% capacity retention within 300 cycles at 5 A g −1 .
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PubMed
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ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Qiongqiong Lu,Congcong Liu,Yehong Du,Xinyu Wang,Ling Ding,Ahmad Omar,Daria Mikhailova
Aqueous zinc-ion batteries (ZIBs) are considered as a promising energy storage system due to their low cost and high safety merits. However, they suffer from the challenge of uncontrollable dendrite growth due to a non-uniform zinc deposition, which increases internal resistance and causes battery failure. Herein, Ag coating fabricated by a facile surface chemistry route on zinc metal was developed to guide uniform zinc deposition. Ag-coated Zn shows improved electrolyte wettability, a small zinc deposition overpotential, and fast kinetics for zinc deposition/dissolution. Direct optical visualization and scanning electron microscopy images show uniform zinc deposition due to the introduction of Ag coating. As a result, the Ag-coated Zn anode can sustain up to 1450 h of repeated plating/stripping with a low overpotential in symmetric cells at a current density of 0.2 mA cm–2, while an improved performance is realized for full cells paired with a V2O5-based cathode. This work provides a facile and effective approach to improve the electrochemical performance of ZIBs.
研究领域:
储能
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电化学
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材料科学
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电池技术
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