APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Qi Chen,Zefeng Yang,Yueling Chen,Jionghua Wu,Jimmy C. Yu,Ling Wu
More efficient N 2 activation and carrier dynamics are needed for effective solar-driven ammonia synthesis. Herein, a heterojunction photocatalyst (Co-ZnO/MIL-125(SH) 2 ) was constructed by using MIL-125(Ti) with sulfhydryl functionalization and Co-doped ZnO for photocatalytic nitrogen fixation. A series of characterization reveal that the formation of S-scheme charge transfer greatly enhances interfacial charge separation for more available carriers. The presence of Ti 3 + sites in MIL-125(SH) 2 also facilitates the adsorption and activation of N 2 , effectively leveraging the photogenerated electrons for N 2 conversion. Moreover, the introduction of Co-ZnO increases the hydrophilicity of the catalytic surface. This allows more water molecules to be oxidized by photogenerated holes to release H + for the N 2 hydrogeneration process. As a result, a high photocatalytic ammonia production rate of 50.8 μmol•g −1 •h −1 is achieved under visible light irradiation. This study presents an insight into engineering S-scheme heterojunction composite by coupling molecular coordinate activation and improved protons supply for efficient photocatalytic nitrogen fixation.
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高影响因子
MOLECULES
·
2026
·Vol. 31
·期 7
·1091
·
IF 5.1
Heji Luo,Huifang Liu,Simin Liu,Haiyan Wang,Lingling Liu,Xibao Li
The development of efficient, stable, and sustainably fabricated photocatalysts for solar-driven hydrogen evolution remains a critical challenge in the field. Herein, we report a novel green coprecipitation strategy to synthesize calcium-doped zinc oxide (Ca-ZnO) nanosheets, utilizing cactus juice as a natural, multifunctional medium for the coprecipitation process. This method enables the in situ, tunable incorporation of 3–7% Ca2+ions into the wurtzite ZnO lattice without the use of harsh chemical reagents. Comprehensive characterization confirms that Ca2+substitutionally replaces Zn2+, which preserves the intrinsic crystal structure of ZnO well while inducing the formation of uniform nanosheet morphology. This doping strategy effectively modulates the electronic band structure, progressively narrowing the bandgap from 3.19 eV to 2.90 eV and significantly enhancing visible-light absorption. Crucially, the incorporation of Ca2+also generates oxygen vacancies, which serve as efficient electron traps to suppress photogenerated charge carrier recombination. The optimized 5%Ca-ZnO photocatalyst demonstrates a favorable hydrogen evolution rate of 889 μmol·g−1·h−1under full-spectrum irradiation, with stability, retaining 94.8% of its activity after four cycles. This work not only provides a high-performance material but also establishes a generalizable, sustainable paradigm for the design of advanced semiconductor photocatalysts.
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PubMed
高影响因子
MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 4
·274
·
IF 5.4
Zhang Shuai,Li Yi,Guo Chuanpan,Zhang Zhihong,Guo Yuqi
The precise detection of microRNAs (miRNAs) in tumor tissue is vital for the early diagnosis of cancer. In this work, we propose an electrochemiluminescence (ECL) aptasensing strategy for the sensitive detection of miRNA-122 in living cancer cells. To tremendously amplify the ECL response, a zinc-porphyrin-organic framework embraced with ZnO nanoparticles (NPs), which was synthesized through solvothermal synthesis using 5,10,15,20-tetra(4-pyridyl)porphyrin (TPyP) as linking ligand and zinc nitrate as precursor (represented by Zn-TPyP@ZnO), simultaneously served as bioplatform and ECL emitter in the presence of the coreactant K 2 S 2 O 8 . The generation of a microinterface between Zn-TPyP and ZnO NPs endowed fast electron transfer, improved catalytic performance, and superior biocompatibility. These advantages of the Zn-TPyP@ZnO heterojunction confers the system with strong reduction capability toward S 2 O 8 2− to generate SO 4 •− and toward O 2 to produce O 2 •− or •OH, as well as excellent anchoring capability for the miRNA-122-targeted aptamer. Therefore, the developed Zn-TPyP@ZnO-based ECL aptasensor demonstrated a wide linear detection range from 10 fM to 10 nM with an ultralow detection limit of 0.77 fM, accompanied with high selectivity, good stability, and excellent reproducibility. The constructed ECL aptasensor also showed promising application for the detection of miRNA-122 in living cancer cells. Thereby, the present work not only provides a new ECL aptasensing strategy for the sensitive detection of miRNA in living cancer cells but also puts forward the advancement of the early diagnosis of tumors. Graphical
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Jiayao Gao,Chen Chen,Linshan Wang,Zhenyu Wang,You Fu,Yaxin Li,Yinghang Kou,Zilong Liu,Yiming Wang,Hongbin Sun
Aluminum-water (Al-H2O) batteries, enabling on-demand high-purity hydrogen production and simultaneous power output, hold great promise for hydrogen energy and electrochemical energy storage applications. However, severe self-corrosion of aluminum anode and parasitic hydrogen evolution reaction (HER) in highly alkaline electrolytes hinder their practical deployment. This work proposes a novel organic-inorganic hybrid corrosion inhibitor comprising sodium 3-mercapto-1-propanesulfonate (MPS) and zinc oxide (ZnO). Combined experimental and computational investigations demonstrate that a dense, robust adsorption-deposition composite protective layer is formed on the anode surface via a "molecular bridging" synergistic mechanism, delivering a corrosion inhibition efficiency of 72.9%. In alkaline Al-H2O full-cell tests, the battery achieves 77.5% anode utilization, and a specific capacity of 2309 mAh g-1 at 20 mA cm-2. This work offers valuable guidance for designing high-performance hybrid corrosion inhibitors for Al anodes.
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NEW JOURNAL OF CHEMISTRY
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2026
·
IF 2.6
Chengfei Zhang,Pengze Zhang,Mingyuan Zhu
CuO-ZnO is a key catalyst widely used in catalytic processes such as dehydrogenation and hydrogenation. Hence, revealing the impact of H2O and H2 on the stability of CuO-ZnO catalysts is of critical importance. In this work, a CuO-ZnO/SiO2 catalyst with highly dispersed CuO-ZnO interface active sites was synthesized, and the structure-activity relationship and deactivation mechanism were systematically investigated using a model reaction (the cyclodehydrogenation of 1-amino-2-propanol to 2,5-dimethylpyrazine) that simultaneously generates H2O and H2. Under optimized reaction conditions (250 °C, space velocity: 1.5 h-1, and N2 flow rate: 8 mL/min), a 2,5-dimethylpyrazine yield of 68.1% was achieved over the 20%CuO-ZnO/SiO2-3:2 catalyst. The investigation into the deactivation mechanism reveals that Cu species agglomeration and carbon deposition are the primary reasons for the decline in activity. The roles of H2 and H2O in catalyst stability were found to be different: H2 suppressed the aggregation of metallic Cu0, while H2O enhanced stability by suppressing the formation of carbon deposits. Based on the understanding of the deactivation mechanism, catalyst regeneration was performed through air calcination, recovering the 2,5-dimethylpyrazine yield to 88.1% of the initial value. Overall, this work reveals the deactivation pathways and stabilization mechanisms of CuO-ZnO/SiO2 catalysts under reactive atmospheres containing H2 and H2O, offering theoretical guidance for industrial application and design of a highly stable CuO-ZnO catalyst.
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SENSORS AND ACTUATORS B-CHEMICAL
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2026
·
IF 8.3
Xingyu Liu,Yonglin Chen,Yifei Wang,Jiayao Wang,Shiquan Chen,Yuxiang Ou,Zixuan Wu,Aiping Huang,Xianzhe Liu,Jianyi Luo
Spinel ferrite (MFe 2 O 4 ) has emerged as an ideal candidate material for non-invasive breath analysis acetone sensors in diabetes diagnostics due to its outstanding chemical stability and exceptional surface redox activity. However, existing MFe 2 O 4 -based gas sensors remain constrained by critical limitations, including high detection limits and low sensitivity to sub-ppm levels of acetone, which hinder their practical application in diabetes diagnosis. This study developed a simple and efficient strategy for successfully preparing ZnO/ZnFe 2 O 4 heterojunction composites by adjusting the pH of the solution. Specifically, leveraging the drastic solubility difference between Zn 2+ and Fe 3+ ions, we achieved controlled formation of ZnO/ZnFe 2 O 4 heterophases within a specific pH range (5.02–5.35). These structural features facilitate the adsorption of acetone molecules and boost the efficiency of charge transfer, thereby endowing the composites with superior acetone-sensing performance at the sub-ppm level. Notably, the as-synthesized ZnO/ZnFe 2 O 4 (pH = 5.02) heterogeneous composites exhibited exceptional gas-sensing performance toward 1.0 ppm acetone, including a low detection limit of 0.40 ppb, a high response (13.76), a fast response time of 6 s, excellent selectivity, long-term operational stability, and robust humidity tolerance. More importantly, the ZnO/ZnFe 2 O 4 sensor could successfully distinguish exhaled breath samples from healthy individuals and simulated diabetic patients, thus highlighting its potential for clinical breath analysis. The results demonstrate that the preparation of ZnO/ZnFe 2 O 4 heterojunction composites with tunable surface states and surface barriers through rational synthetic strategies provides a new paradigm for designing high-performance spinel ferrite-based composites, thereby advancing the development of non-invasive diabetes diagnostic tools.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhifang Liu,Le Liu,Kunxiang Deng,Jiejun Li,Caiyu Ge,Xiang Ye,Yixi Xie,Pengcheng Zhao,Junjie Fei
Cotton-derived carbon coupled with Ce-doped ZnO via in-situ pyrolysis. • Portable Ce-ZnO-CNF@CC/SPE sensor was developed for on-site CPZ detection. • DFT verified optimized electronic structure and accelerated charge transfer. • Ultrasensitive response with a low limit of detection. • Reliable recovery in real samples for environmental monitoring. On-site monitoring of the emerging organic pollutant chlorpromazine (CPZ) is severely limited by the absence of low-cost, portable, and high-performance sensors. Herein, a disposable screen-printed sensor (Ce-ZnO-CNF@CC/SPE) was fabricated by in-situ growing Ce-doped ZIF-8 on cotton-derived carbon, followed by a one-step pyrolysis strategy. Density functional theory (DFT) calculations confirmed that trace Ce doping induces robust p-d-f orbital hybridization with the host lattice without structural disruption. The introduction of Ce 4f impurity levels narrows the band gap and significantly elevates the density of states near the Fermi energy. This robust electronic modulation accelerates charge-transfer kinetics and optimizes the CPZ adsorption affinity. Under optimized conditions, the fabricated sensor exhibited a remarkably broad linear range and an ultra-low limit of detection, along with excellent anti-interference, reproducibility, and stability. Furthermore, highly accurate and reliable recoveries were achieved in complex real-world matrices, including human serum and environmental water samples. This work provides a reliable portable platform for on-site CPZ monitoring and establishes an electronic structure-activity paradigm for designing highly dispersed, biomass-derived carbon-based sensors. Download: Download high-res image (151KB) Download: Download full-size image
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Wenwen Sun,Li Yin,De Sun,Guoliang Zhang,Dingfei Gong
Rational design of photocatalytic self-cleaning filter materials for oil–water separation is a promising strategy to address performance degradation caused by oil fouling. In this study, graphene (Gr) and Zinc Oxide (ZnO) were assembled on the surface of carbon felt (CF) fibers by electrodeposition and direct precipitation, and thus ZnO/Gr-CF with self-cleaning performance under visible light induction was prepared. On the fiber surface, the multistage micro-nano rough structure formed by micron-sized Gr and scaly ZnO endows the ZnO/Gr-CF with underwater superoleophobicity (153.0°), thereby enabling on-demand oil–water mixtures separation. Additionally, the reduced band gap (2.78 eV) of ZnO/Gr-CF enables its photocatalytic self-cleaning performance under visible light irradiation. The results showed that the ZnO/Gr-CF can achieve high separation efficiency and high flux in separating a variety of immiscible oil–water mixtures (99.8 % and 146169.2 L·m −2 ·h −1 ) and emulsions (98.3 % and 28571.0 L·m −2 ·h −1 ) under gravity-driven. Meanwhile, the ZnO/Gr-CF achieved self-cleaning of oil-fouling, resulting in a Separation Efficiency Recovery Rate (SERR) of 94.6 % and a Flux Recovery Rate (FRR) of 98.8 %. In addition, the ZnO/Gr-CF can separate immiscible and emulsified Degreasing Wastewater (DGW) from AW-Volkswagen, achieving separation efficiencies of 96.0 and 70.8 %, with corresponding flux values of 5425.0 and 4600.0 L·m −2 ·h −1 , respectively. After 50 times separation, the SERR and FRR reached 89.5 and 92.1 %, respectively. Following the water impact, wear resistance, and solvent resistance tests, the underwater oil contact angle of the ZnO/Gr-CF stayed above 150.0°. Self-cleaning filter materials with special wettability provide new insights into the treatment of actual DGW.
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ACS Applied Polymer Materials
·
2025
·
IF 4.7
Jiapeng Ye,Shuang Hou,Deming Zhou,Lifan Li,Chenji Zhang,Hongjia Liu,Yanmei Peng,Leyan Li,Kun Luan,Tonghua Zhang,Zaixing Zhang,Lingxiao Jing
Silk possesses excellent flexibility, moisture absorption, breathability, antistatic properties, mechanical strength, biocompatibility, biodegradability, and aesthetic appeal, making it suitable for textile and biomedical applications. However, UV exposure breaks silk’s molecular peptide bonds, weakening strength and hampering long-term use. In this study, we synthesized an organic–inorganic composite protective layer for the enhancement of UV resistance of silk fibers. The method combines an azobenzene photoresponsive monomer with a glycerol ester containing epoxy groups to form a photoresponsive polymer, which was then blended with zinc oxide (ZnO) nanoparticles. The research results indicate that the UV protection performance of modified silk fabrics has been improved. After 192 h of UV exposure, silk fabrics treated with azobenzene/epoxy-ZnO composite coating retained 72.7% of its tensile strength, higher than the 49.7% of untreated fabric. Additionally, the ratio of pigment absorption coefficient to scattering coefficient (K/S) was 0.408, higher than the 0.343 of the original silk fabrics. The ultraviolet protection factor (UPF) measures a material or garment’s UV protection ability. The azobenzene/epoxy-ZnO-treated silk fabric has a UPF exceeding 100. This azobenzene-modified silk fabric also shows better light fastness than the original. The study offers an active and efficient way to reduce silk’s photodegradation in daily use.
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ACS Applied Energy Materials
·
2025
·
IF 5.5
Tianli Han,Jing Xu,Kehao Tao,Chenchen Zhang,Lixing Li,Xu Ge,Xueke Liang,Panya Zuo,Yiwen Xie,Jinjin Li,Jinyun Liu
The shuttle effect of polysulfides is one of the most severe issues in lithium–sulfur (Li–S) batteries. Here, we develop a graphene quantum dot (GQD)-decorated hollow porous ZnO/ZnCo2O4 as a sulfur host, which effectively immobilizes polysulfides and thus achieves good electrochemical performances. Polar ZnO and ZnCo2O4 as double shields show strong adsorption toward polysulfides as demonstrated by using density functional theory calculations, GQDs in shells improve conductivity, and a hollow porous morphology accommodates volume changes of sulfur upon cycling. The ZnO/ZnCo2O4/GQDs@S cathode displays high performances including a stable capacity of 797 mAh g–1 after 200 cycles at 0.2 C, reversible rate performance after three rounds of measurements, and good tolerance under low and high temperatures. These findings will find important applications for engineering many high-performance materials for Li–S batteries and accelerating applications.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Linhui Fu,Chen Hou
The integration of visual detection and degradation of volatile organic compounds (VOCs) is greatly desired for addressing ever-growing environmental problems. Herein, a chemically cross-linked cellulose aerogel is explored as substrate material, combing with ZIF-8/MoS 2 derived 2D ZnO/MoS 2 heterojunction. Then polydiacetylene (PDA) was self-assembled on the aerogel via topochemical polymerization to obtain a smart gas sensing and eliminating hybrid aerogel (PZMCA) with high porosity (>96%). The intrinsic stimulate responsiveness and the flower-like hierarchical structure of PDA contributed to a sensitive and fast color response to gaseous toluene with 10 s. Moreover, by regulating the mass ratio of ZnO and MoS 2 , the PZMCA presented enhanced photocatalytic ability for toluene (97% of degradation efficiency with 180 min) under solar light irradiation. GC-MS reveals the possible mechanism and pathway of the photocatalytic degradation of toluene. The robust, uniform, versatile and functional aerogels could hopefully provide practical applications in VOCs detection and photocatalytic degradation.
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高影响因子
JOURNAL OF CATALYSIS
·
2023
·
IF 7.3
Yayu Guan,Jiaying Yan,Yuyu Liu,Fanghua Ning,Jin Yi,Jiujun Zhang
Electrochemical CO 2 reduction reaction (eCO 2 RR) is considered an efficient approach to produce value-added chemicals and fuels. In this paper, a series of MOF-derived composite catalysts with coexisting In 2 O 3 and ZnO are fabricated using a simple process for eCO 2 RR to produce formate. The Zn-In-O/800 catalyst achieves a formate Faradaic efficiency (FE HCOO− ) of 94.25 % at −1.16 V vs. RHE, which can maintain over 89 % after 30 h in a stability test. The electrochemical evidence and density functional theory analysis show that the strong interface effect between In 2 O 3 and ZnO can enhance the CO 2 adsorption and activation, and promote the conversion of CO 2 to formate. In addition, the ZnO phase can protect In 2 O 3 , as the main active site, from being reduced to a certain extent for a long time under negative potential, which ensures the high stability of the composite catalyst.
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危险品化学品经营许可证（带存储）