INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Qing Li,Yong You,Xingyu Hu,Danqing Lu,Qian Wen,Gang Yu,Wenlei Wang,Tao Xu
This work innovatively used cellulose nanofibers as a photocatalyst carrier, which could recycle nano-photocatalysts and minimize nanoparticle aggregation. The morphology, structures, chemical composition, optical-electronic properties and photocatalytic performance of amino-modified carbon quantum dots-ZnO/cellulose nanofiber (N-CQDs-ZnO/CNF: ZCH-2) hydrogel were characterized by SEM, TEM, BET, EDS , XRD, FTIR, UV–vis, XPS, PL and other techniques. The mechanism of Cr(VI) adsorption synergistic photoreduction by ZCH-2 was discussed in detail. The results showed that the prepared ZCH-2 had excellent removal performance for Cr(VI). After 120 min of adsorption and 40 min of photoreduction, the removal efficiency of Cr(VI) was 98.9 %. Compared with ZnO/CNF hydrogel, the adsorption performance of ZCH-2 increased by 268 % and the photoreduction performance increased by 116 %. The adsorption of Cr(VI) by ZCH-2 was controlled by electrostatic attraction and chemical adsorption. The photoreduction kinetic constant of ZCH-2 was 0.106 min −1 , which was 8.9 times that of ZnO/CNF hydrogel. The N-CQDs in ZCH-2 could form N-CQDs-metal complexes with Cr(VI), resulting in fluorescence quenching , so Cr(VI) could be visually identified by fluorescence changes. This study provides a new idea for the design and optimization of a new multifunctional hydrogel with efficient adsorption-photoreduction-fluorescence recognition.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Chemistry Africa-A Journal of the Tunisian Chemical Society
·
2023
·
IF 2.6
Arukalam Innocent O.,Uzochukwu Ikechukwu N.,Tüzün Burak,Dagdag O.,Oguzie Emeka E.
Ethylhexanoic acid-modified PDMS-ZnO nanocoatings containing varying dimensions of ZnO nanoparticles (30, 50 and 90 nm) were prepared. The main objective was to appraise the effect of varying dimensions of ZnO nanoparticles on the protective efficacy of ethylhexanoic acid-modified PDMS coating in aqueous solution of 3.5 wt% NaCl/ Pseudomonas aeruginosa . Barrier properties and anti-corrosion performance of the coatings were evaluated by electrochemical impedance spectroscopy (EIS). Computational simulation techniques [quantum chemical computation (QCC) via density functional theory (DFT) and molecular dynamics (MD) simulation] were employed to provide molecular/atomistic level information on the chemical molecules responsible for corrosion protection performance and their adsorption phenomena. EIS results showed that the coating containing 30 nm ZnO nanoparticles maintained high impedance values in the order of 10 9 magnitude throughout the immersion periods. The obtained results were validated by wettability, scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy results. The DFT calculations showed that PDMS and ethylhexanoic acid with energy gaps of 5.123 and 5.337 eV, respectively, are most responsible for the corrosion protection effect. The good adsorption of the coating containing 30 nm ZnO particles was validated by MD simulation result with adsorption energies (E ads ) of − 2.28 kcal/mol, suggesting it is most susceptible for hydrophilic interaction.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Hengli Qian,Guanjie Yu,Qidong Hou,Yifan Nie,Chuanyunlong Bai,Xinyu Bai,Haozhi Wang,Meiting Ju
To achieve efficient degradation of pharmaceutical and personal care products (PPCPs), dual reaction centers [email protected] photo-Fenton catalysts with high-speed electron transmission channel were designed through surface hydroxyl-induced assembly. In [email protected] catalytic system, the photocatalysis center of ZnO and Fenton catalytic center of FePc were formed simultaneously. Concept and process for the control of hydroxyl groups to construct a dual reaction center [email protected] photo-Fenton catalyst were verified ingeniously based on the density functional theory (DFT) analysis and experimental results. A series of catalysts, including ZIF-8 (400 ℃-N 2 ), FePc (400 ℃-N 2 ), ZIF-8 (400 ℃)-FePc (400 ℃) and [email protected] were prepared and characterized by XRD, FTIR, TEM, BET, XPS, PL and DRS, respectively. The [email protected] catalyst showed superior performance for the photo-Fenton degradation of ibuprofen, affording degradation rate larger than 90 % within just 10 min under simulateed sunlight. The excellent performance of [email protected] catalyst is mainly attributed to the synergistic effect between dual reaction centers of [email protected] This work provides a novel method to construct dual reaction centers [email protected] catalyst with efficient photo-generated electrons transmission link and to strengthen the synergistic effect of dual reaction centers.
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2020
·
IF 5.977
Qiwen Wang,Haipei Si,Lihui Zhang,Ling Li,Xiaohong Wang,Shengtian Wang
A novel electrochemical sensor based on ZrO 2 and ZnO hybrid nanocomposites was developed for simultaneous determination of epinephrine (EA), uric acid (UA) and folic acid (FA) with the highly selective and ultrasensitive. The nanocomposites have been synthesized by chemical precipitation and thermal calcine method with economical, eco-friendly and practical nature. Their structure and electrochemical properties were investigated by X-ray diffraction (XRD), X-ray photo electron spectroscopy (XPS), scanning electron microscopy (SEM) and electrochemical techniques. The results reveal that the ZrO 2 /ZnO nanocomposites can possesses highly exposed catalytic sites, favorable conductivity, and the sensor excellent signal response for EP, UA and FA under the optimal condition. The electrochemical sensing platform has a low detection limit of 0.039 μM, 0.29 μM and 0.037 μM and a wide detection range of 0.8–420 μM, 10–2400 μM and 2–480 μM, respectively. It was also tested with a human blood serum sample at physiological pH with recovery 97.3–103.8% and relation standard deviation less than 5%. It indicates that the electrochemical sensors has a hopeful capacity of extensive applications in bioanalysis and diseases diagnosis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2019
·
IF 7.467
Xiao Zeng,Zhanhong Yang,Jinlei Meng,Linlin Chen,Hongzhe Chen,Haigang Qin
The porous ZnO/C composites derived from metal organic framework-5 (MOF-5) is obtained via a calcination method subsequent to hydrothermal process. The results of materials characterization analysis show that the porous ZnO/C composites is well-crystallized with cube morphology and possesses a large specific surface area. According to the electrochemical measurements, the porous ZnO/C composites as anodic materials for Nickel–Zinc rechargeable battery exhibits excellent electrochemical performance compared with that of the commercial ZnO, keeping the discharge specific capacity at 587 mAh g −1 with the capacity retention ratio of about 89.1% after 800 cycles. The outstanding electrochemical property of porous ZnO/C composites can be ascribed to the interconnected conductive network generated by the carbon layer and stable cube architectures derived from metal organic framework-5 precursor, which can facilitate the transportation of electrons and restrain the formation of zinc dendrites during repeated charge-discharge cycling. Furthermore, a novel sphere structure consisting of numerous intersecting disk-like sheets is transformed from the cubic porous ZnO/C composites after 600 cycles, which can contribute to the uniform current distribution and improve the performance of energy storage, revealing the truth for the long cycle life of porous ZnO/C composites.
✓ 已验证
产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2014
·
IF 6.451
Yuting Wang,Shi Wang,Li Tao,Qing Min,Jin Xiang,Qiman Wang,Jianmei Xie,Yuan Yue,Shuangchan Wu,Xiaofei Li,Hong Ding
A new electrochemical sensor for simultaneous determination of norepinephrine (NE) and serotonin (5-HT) was fabricated. The electrochemical behavior of NE and 5-HT were investigated using CV and SWV at the MWNTs-ZnO/chitosan composites modified screen-printed electrode (MWNTs-ZnO/chitosan SPE). The results showed that the current responses of NE and 5-HT greatly enhanced due to the high catalytic activity of composites. The peak potentials of NE and 5-HT were separated at about 90 mV and 280 mV, respectively. The peak currents of NE and 5-HT were linearly dependent on their concentrations in the range of 0.5–30 μM and 0.05–1 μM, with the limit of detection of 0.2 μM and 0.01 μM, respectively. The modified electrode can be stored stably for at least 3 month at 4 °C in a refrigerator. Furthermore, the modified electrode was successfully applied to detect the level of NE and 5-HT in rat cerebrospinal fluid (CSF) with excellent selectivity and sensitivity.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Tongyi Wu,Qiaoling Zhang,Zhongbiao Xie,Xiangqin Ding,Tianhua Liu,Haisheng Hu,Xiaomin Zhang,Guoqiao Lai,Qiu Chen
Additive manufacturing is advancing rapidly and gaining widespread adoption across various industries. Although ZnO nanoparticles (ZnO-NPs) hold significant promise, their tendency to agglomerate in photosensitive resins presents a challenge, obstructing the UV-curing process in 3D printing. In response to this, we have innovatively developed a PUA-based functional photosensitive resin for 3D printing, which incorporates highly dispersible Organosilicon@ZnO-NPs. These nanoparticles exhibit smaller sizes and a more uniform distribution, achieved through the spray sedimentation method. Using Digital Light Processing (DLP), the resin demonstrated enhanced mechanical properties, including a tensile strength of 75.188 MPa (a 96.34 % improvement), a flexural modulus of 2223.276 MPa (a 71.81 % improvement), as well as high-precision 3D-printed material. The material also exhibited efficient broad-spectrum antimicrobial properties (99.64 % against E. coli and 98.93 % against S. aureus ) and strong UV-shielding performance (97.32 % UV-blocking rate). Mechanistically, the improvement in mechanical properties is attributed to the role of Organosilicon@ZnO-NPs, which function similarly to an amine chain extender. This allows them to establish a robust hydrogen bonding network within the PUA-based photosensitive resin and react with free –NCO groups in the system. The antimicrobial and UV-shielding effects stem from the combined actions of Organosilicon@ZnO-NPs, which disrupt bacterial cell membranes, release Zn 2 ⁺ ions, and scatter and absorb UV light. This study paves the way for novel applications of ZnO-NPs in UV-curing 3D printing, opening new avenues for innovation.
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2024
·
IF 3.8
Muhammad Khalid Hussain,N.R. Khalid,Muhammad Tanveer,Amir Abbas,Furqan Ali,Warda Hassan,Martha Rianna,Sultana Rahman,Muhammad Hamza,Muhammad Aslam
x ZnO- (1-x) MoO 3 (x = 0.0,0.1,0.3,0.5,0.7) nanocomposite materials have been efficiently fabricated by the facile hydrothermal method to enhance the photocatalytic activities for the environmental applications. The fabricated samples were characterized via XRD , SEM, EDX , XPS, UV–Visible spectroscopy, PL and FTIR analysis. The 5% ZnO-M nanocomposite material exhibits reduced band gab energy and superior photocatalytic activity for rhodamine B (RhB) and alizarin yellow (AY) dyes degradation of 94% and 81% within 120 min under visible light irradiance. Our reported study reveals that the 5% ZnO-M photocatalyst is extremely stable and reusable for more than five reaction of cycles. The photocatalytic enactment of the 5% ZnO-M composite was mostly endorsed due to Z-scheme photocatalysts, higher visible light adsorption on the surface morphology , improved charge separation/transfer, and decreased recombination rate. This study may provide new ideas for developing effective, innovative Z-scheme heterojunction photocatalysts and encouraging their extensive application for the degradation of dyes from wastewater.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Ping Su,Dong Zhang,Minghui Zhu,Tengteng Liang,Nan Yang,Huaihao Zhao,Dafeng Zhang,Junchang Liu,Peiqing Cai,Xipeng Pu
Piezoelectric materials have advantages of fine-tuning photocatalytic performance through harvesting mechanical energy and open a new avenue in facilitating green catalytic reaction. Herein, polyvinylidene fluoride (PVDF), a flexible piezoelectric material, was introduced to synthesize a novel Cd 0.9 Zn 0.1 S-ZnO@C/PVDF (CZS-ZO@C/PVDF) piezo-photocatalytic film by spin coating and immersion phase conversion method. Benefiting from the piezoelectricity of PVDF and the internal electric field (IEF) of CZS-ZO@C Step-scheme (S-Scheme) heterojunction, CZS-ZO@C/PVDF was able to induce a hydrogen generation rate of 34.9 mmol g −1 h −1 activated by ultrasound and visible light (U-L), which is ∼17.5 times of Cd 0.9 Zn 0.1 S/PVDF (CZS/PVDF) and ∼7.4 times of the photocatalysis rate activated by visible light only (L). Piezoelectric measurements and COMSOL simulation illustrated the excellent piezoelectricity of CZS-ZO@C/PVDF film, which exhibits a piezoelectric coefficient ( d 33 ) of 9.9 pm V −1 and a piezoelectric potential of 874 mV (under 0.5 MPa). The reaction mechanism for the exceptional piezo-photocatalytic performance was finally disclosed through density functional theory (DFT) calculation and electrochemical tests. This study enriches the application scope of piezoelectric materials in sustainable energy catalysis and provides a new direction to develop efficient piezoelectric photocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
ACS Omega
·
2025
·
IF 4.3
Juan Du,Kang-Li Yang,Zhi-Qing Yuan,Rui He,Shu-Juan Liu,Can-Cheng Li,Shou-tong Meng,Xu-yu Long,Qian Su,Qing Liao,Pei-ning Zhu
Postharvest fruit losses are largely driven by a short shelf-life resulting from ethylene-induced ripening, microbial spoilage, and moisture loss. In this study, a multifunctional coating was fabricated on Moso bamboo substrates via a simple two-step process. The coating integrates superhydrophobic, ethylene-scavenging, and antibacterial functions, utilizing rosin, nano-ZnO, Artemisia argyi powder, nano-CaCO3, and KMnO4. The bamboo with this coating acts as an indirect preservation platform, regulating the storage microenvironment to reduce ethylene accumulation, microbial proliferation, and water loss. The system is cost-effective, biosafe, and scalable for practical use. Shelf-life tests demonstrated significant extension for both climacteric and nonclimacteric fruits: bananas (from 5 to 21 days, ≥200%), strawberries (1–2 to 5 days, ≥150%), blueberries (5–7 to 15 days, ≥114%), cherry tomatoes (4–7 to 14 days, ≥100%), and sweet cherries (5–7 to 14 days, ≥100%). The synergistic effect of ethylene adsorption, moisture barrier, and contact-plus vapor-phase antibacterial action contributes to the broad-spectrum efficacy of this approach. These findings support this coating as a promising passive packaging material for fresh produce preservation.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Yajun Zhao,Yanwei Li,Xuping Li,Qianxi Wang,Guang Sun,Jianliang Cao,Yan Wang
Herein, we propose a ZnO and Pt co-modification strategy to boost the NO 2 sensing performance of SnO 2 . Specifically, a ternary Pt/ZnO/SnO 2 composite was prepared by sequentially decorating ZnO and Pt nanoparticles onto a porous nanorod-assembled hierarchical structure (PNRHS) of SnO 2 . The resulting Pt/ZnO/SnO 2 composites were characterized using various techniques, and their sensing properties to NO 2 were investigated. The results reveal that after co-modification with ZnO and Pt, the SnO 2 sensor exhibits remarkable performance enhancements in detecting sub-ppm-level NO 2 , including significantly improved sensitivity, superior gas discrimination capability, and accelerated response kinetics. At its optimal working temperature of 140 °C, the optimized Pt/ZnO/SnO 2 sensor demonstrates a response of 105.6–1 ppm NO 2 , approximately 42.2, 7.4, and 7.9 times than that of the pure SnO 2 (2.5 at 120 °C), ZnO/SnO 2 (14.3 at 150 °C), and Pt/SnO 2 (13.3 at 140 °C) sensors, respectively. The enhanced NO 2 sensitivity of the ternary Pt/ZnO/SnO 2 composite sensor is attributed to the synergistic sensitization effects of the ZnO and Pt modifiers, whose underlying mechanisms are discussed.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Mengshi Chen,Zihan Kang,Jingjing Ning,Ni Qin,Dinghua Bao
A novel method was established to create ZnO/ZIF-8 core/shell heterostructured film piezo-photocatalysts for highly efficient removal of pollutants from water. This method was inspired by distinctive pore structure of ZIF-8 and has the advantage of simple and quick synthesis. In this work, ZnO/ZIF-8 heterostructure thin films were created by growing ZIF-8 metal organic framework in-situ on inverse opal structure ZnO films, which also served as the porous template and zinc source of ZIF-8 simultaneously. Thus, the ZnO/ZIF-8 core/shell heterostructure is composed of ZnO core and ZIF-8 shell. The inverse opal structure enhances the process of light absorption, and the heterostructure is crucial for enhancing the carrier concentration. The ZnO/ZIF-8 heterostructure films exhibit significant degradation capacity towards Rhodamine B (RhB) and tetracycline (TC). Under UV light and ultrasound, the degradation efficiency of ZnO/ZIF-8 heterostructure is much higher than that of ZnO film and ZIF-8 film for RhB solution, indicating that the heterostructure films have a great potential for use in the field of water pollution prevention. This study not only presents an effective method for quickly creating heterostructures, but also demonstrates a path for improving the piezo-photocatalytic efficiency by manipulating the morphology and structure of ZnO/ZIF-8.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）