SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2024
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IF 4.3
Siying Che,Xiutan Peng,Anbang Shen,Linlin Yin,Yuanbin She,Haiyan Fu
Excessive or insufficient iron(Ⅲ) will pose burdens of human body, and its content is the key to control the function of iron-fortified food. In this regard, a functionalized quinoline ionic probe, benefiting from the electrostatic attraction, was designed for the colorimetric detection of Fe 3+ in food. This probe formed a 2: 1 complex with Fe 3+ , altering the UV–vis spectra and solution color. The UV–vis detection limit was 0.2 μM, and visually, the color shifted from light-yellow to dark-green as Fe 3+ concentrations increased, with a visual detection limit of 3.4 μM, meeting the maximum acceptable level of 5.4 μM. Noteworthy, ionic liquid-based sensing paper was constructed for rapid, semi-quantitative Fe 3+ detection. Furthermore, the satisfying recovery (97.4–102.9 %) was obtained in real samples, showcasing the probe’s efficiency. This work demonstrated the potential of ionic liquids for the fast, sensitive, and visual detection of Fe 3+ , offering a promising direction for metal element sensing platforms.
研究领域:
分析化学
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食品安全
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产品关联
DOI
PubMed
高影响因子
Chemical Engineering Journal Advances
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2024
·
IF 5.5
Zheng Luo,C.P. Leo,Fengbo Guo,Xin-ya Zhao
Photocatalysts offer sustainable treatment of water pollutants using light and they can be further piezoelectrically enhanced. As a highly efficient, stable, and environmentally friendly photocatalytic material, bismuth oxychloride (BiOCl) exhibits significant advantages in the degradation of rhodamine B, but its morphology can be easily affected by solvothermal synthesis. In this study, the solvent effects of ethylene glycol and water were compared in the presence of polyvinylpyrrolidone (PVP) through solvothermal and hydrothermal reactions, respectively. X-ray diffraction patterns, Fourier-transform infrared spectra, and X-ray photoelectron spectra confirmed the formation of BiOCl nanosheets with numerous oxygen-rich vacancies. Scanning electron microscopy and transmission electron microscopy images showed circular plate-like structures or spherical clusters with a diameter of approximately 1 μm when BiOCl was prepared using water or without the addition of PVP, respectively. The plate-like structure and the spherical clusters transformed into cotton-like spherical clusters assembled from ultra-thin nanosheets with diameters ranging from 20 to 50 nm after using ethylene glycol and PVP. UV–vis absorption spectra showed that BiOCl with a cotton-like spherical structure could achieve higher dye degradation efficiency than BiOCl with a plate-like or spherical structure. The piezoelectric-enhanced photodegradation rates of rhodamine B were significantly increased by about 22 times since the piezoelectric photocurrent intensities rose nearly three times and the generation of •O 2 − and •OH increased. The photocatalytic hydrogen production was improved by 55.3 % and sustained up to 4 cycles due to the conduction band reduction, as proven by the Mott-Schottky plot.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Frontiers of Environmental Science & Engineering
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2022
·Vol. 17
·期 1
·1-11
·
IF 6.048
Wang Xiaoying,Zhang Haiguang,Wang Xu,Chen Shuo,Yu Hongtao,Quan Xie
Reduced graphene oxide (RGO) membranes are theoretically more conducive to the rapid transport of water molecules in their channels compared with graphene oxide (GO) membranes, as they have fewer oxygen-containing functional groups and more non-oxidized regions. However, the weak hydrophilicity of RGO membranes inhibits water entry into their channels, resulting in their low water permeability. In this work, we constructed wettable RGO-MXene channels by intercalating hydrophilic MXene nanosheets into the RGO membrane for improving the water permeance. The RGO-MXene composite membrane exhibits high pure water permeance of 62.1 L/(m 2 ·h·bar), approximately 16.8 times that of the RGO membrane (3.7 L/(m 2 ·h·bar)). Wettability test results and molecular dynamics simulations suggest that the improved water permeance results from the enhanced wettability of RGO-MXene membrane and increased rate of water molecules entering the RGO-MXene channels. Benefiting from good conductivity, the RGO-MXene membrane with electro-assistance exhibits significantly increased rejection rates for negatively charged dyes (from 56.0% at 0 V to 91.4% at 2.0 V for Orange G) without decreasing the permeate flux, which could be attributed to enhanced electrostatic repulsion under electro-assistance.
研究领域:
材料科学
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环境工程
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膜分离技术
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DOI
高影响因子
ACS Nano
·
2022
·
IF 18.027
Xiaobo Feng,Liang Ma,Jie Lei,Qunle Ouyang,Yuxuan Zeng,Yue Luo,Xiaoguang Zhang,Yu Song,Gaocai Li,Lei Tan,Xiangmei Liu,Cao Yang
The successful treatment of osteomyelitis remains a great challenge in the field of orthopedics. The clinical method for treating refractory bone infection requires a combination therapy of long-term systemic antibiotics administration and surgical debridement. It is highly desirable to develop an antibiotic-free, noninvasive, rapid strategy to eradicate osteomyelitis. Herein, we fabricate a piezoelectric-enhanced sonosensitizer that consists of a porphyrin-based hollow metal–organic framework (HNTM), MoS2 nanosheets, and a red cell (RBC) membrane. We find that the ultrasound (US)-induced piezoelectric polarization of MoS2 can improve the charge transfer of HNTM at the heterointerface of HNTM-MoS2, increasing the production of reactive oxygen species (ROS). Besides, MoS2 increases the asymmetric shape of HNTM, leading to the strong US-propelling ability of HNTM–MoS2. The produced ROS and strong mechanical force can kill methicillin-resistant Staphylococcus aureus (MRSA) with an antibacterial efficiency of 98.5% under 15 min of US treatment, resulting in intracellular DNA damage and increased oxidative stress and disturbance of purine metabolism, tryptophan metabolism, and pantothenate and CoA biosynthesis of MRSA. Together with the toxin neutralization ability, the RBC-HNTM-MoS2 successfully eliminates the bone infection and suppresses inflammation and bone loss. This work provides another strategy for developing an efficient sonosensitizer through piezoelectric-assisted sonocatalysis and enhancing US-propelling ability.
研究领域:
生物医学工程
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感染病学
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材料科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
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2024
·
IF 3.8
Qidong Yu,Wenmin Zhang,Jingyi Wang,Shiye Xie,Baodi Liao,Hui Chen,Qingqing Ding,Lan Zhang
Design and preparation of fiber coatings with excellent electrochemical performance and high polarity is significant for efficient extraction of polar targets in electro-enhanced solid-phase microextraction (EE-SPME). In this work, a combination strategy for structure regulation of covalent organic framework (COF) was proposed to fabricate a nitrogen-rich thiocarbamide linked COF coating (Thiocarbamide-TZ-DHTP) via molecular design and post-synthetic thiocarbamide conversion. The prepared COF coating possesses a large number of O, N, and S functional groups, which not only endow the coating with higher polarity but also significantly enhance its electrochemical performance. The COF coating was used for EE-SPME of polar bisphenols (BPs), demonstrating excellent enrichment efficiency and durability. Subsequently, coupled with gas chromatography-tandem mass spectrometry (GC-MS/MS), a sensitive method was developed for determination of trace BPs. The established method possess wide linear ranges (2.0–800.0 ng L −1 ), good correlation coefficients (0.9985–0.9994) and low detection limits (0.1–2.0 ng L −1 ). Moreover, the established method had been successfully applied to detection of trace BPs in tea beverage with satisfactory recoveries (81.6 % to 118.6 %). This research provides a feasible pathway for preparing COF coating with excellent electrochemical performance and high polarity for EE-SPME.
研究领域:
分析化学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2018
·
IF 4.427
Bin Deng,Yating Li,Weihua Tan,Zhaoxi Wang,Ziwei Yu,Shuya Xing,Heng Lin,Hui Zhang
Mn-Zn ferrite (Mn 0.6 Zn 0.4 Fe 2 O 4 ) was prepared by a gel method using spent alkaline Zn-Mn batteries as raw materials and employed as catalyst to degrade bisphenol A (BPA) by electro-enhanced heterogeneous activation of peroxydisulfate (PDS). The effects of initial pH, current density, PDS concentration, and Mn-Zn ferrite dosage on BPA removal were investigated. The formation of reactive radicals was verified by electron paramagnetic resonance (EPR) spectroscopy. The results of radical quenching experiments indicate that surface-bound sulfate and hydroxyl radicals played an important role in BPA removal. The stability of Mn 0.6 Zn 0.4 Fe 2 O 4 catalyst was investigated by cycling experiments, which indicates Mn 0.6 Zn 0.4 Fe 2 O 4 is stable and can be reused. This work also provides an alternative way for the reutilization of spent alkaline Zn-Mn batteries.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
·
IF 8.1
Zhongbao Ma,Peilin Liu,Wenfeng Chen,Chengyi Wang,Yangbo Qiu,Long-Fei Ren,Jiahui Shao
Electroconductive membranes are of interest because their selectivity-permeability and fouling resistance are improved with electrical assistance. MXene lamellar membranes are competitive candidates. However, the swelling problem of MXene membranes has not been adequately addressed, especially at dynamic voltages, resulting in weakened separation performance. In this study, carboxylated cellulose nanofibers intercalated MXene membranes with stable interlayer spacing were developed by constructing column-to-beam structure and mortise-tenon connection. The results showed that the interlayer spacing and membrane pore size of the MX/CN composite membrane were almost invariable before and after electro-assisted filtration. Benefiting from the anti-swelling properties and good electrical conductivity, the MXene composite membranes showed a significant increase in the retention of typical monovalent and divalent inorganic salts at external voltages (from 46.2 % and 80.4 % at 0 V to 60.6 % and 88.7 % at 2.0 V for NaCl and Na 2 SO 4 , respectively), as well as a slight increase in the flux. This enhancement mechanism was attributed to the increase of the Stern layer in the adjacent nanosheets of lamellar membranes under electrical assistance. In addition, external voltage was also effective in improving the fouling resistance and enrichment performance of MXene composite membranes for actual textile wastewater, which might be due to the enhanced electrostatic repulsion and electrokinetic behavior under electrical assistance. This work aims to offer new insights into the advancement of electroconductive membranes with a stable structure for desalination and wastewater treatment.
研究领域:
材料科学
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环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Nianlu Li,Mengping Zhang,Xiao Geng,Ranran Liu,Xiao Meng,Wei Zou,Wenwen Chen,Hua Shao,Cuijuan Wang
Poisoning with diquat (DQ) and paraquat (PQ) herbicides has been a public health problem. Unfortunately, rapid detection in biofluids remains challenging. Herein, a hyphenated approach of electro-enhanced adsorption, solid-phase microextraction, and surface-enhanced Raman spectroscopy (EE−SPME−SERS) was exploited for rapid and sensitive in situ analysis of DQ and PQ in human urine and plasma. A porous Ag fiber with an Au layer (p-Ag/Au fiber) was fabricated with multi-functions (SERS substrate, SPME sorbent , and working electrode). Clear trends could be observed between signal intensity and concentration of DQ or PQ with high reproducibility. The method detection limits (MDLs) calculated from the characteristic peak of DQ were 0.064 ppb and 0.65 ppb in urine and plasma, respectively. Corresponding MDLs for DQ and PQ in urine and plasma were 0.036 ppb and 0.35 ppb, respectively. The whole process of “extracting and detecting” was completed within 4 min with satisfactory recoveries. Notably, the EE−SPME−SERS technique could easily realize in situ analysis of DQ and PQ in biofluids with good selectivity, which is practical in clinical diagnosis. This EE−SPME−SERS method provides a potential avenue for efficient pretreatment and in situ poison detection in biological samples.
研究领域:
分析化学
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毒理学
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临床医学
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产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2023
·Vol. 36
·期 4
·2310102
·
IF 29.4
Zhouquan Sun,Yunhao Hu,Wei Wei,Yaogang Li,Qinghong Zhang,Kerui Li,Hongzhi Wang,Chengyi Hou
Electronic textiles have gradually evolved into one of the most important mainstays of flexible electronics owing to their good wearability. However, textile multifunctionality is generally achieved by stacking functional modules, which is not conducive to wearability. Integrating these modules into a single fiber provides a better solution. In this work, a core-spun functional fiber (CSF) constructed from hyper-environmentally stable Zn-based eutectogel as the core layer and polytetrafluoroethylene as the sheath is designed. The CSF achieves a synergistic output effect of piezoelectricity-enhanced triboelectricity, as well as reliable hydrophobicity, and high mid-infrared emissivity and visible light reflectivity. A monolayer functionalized integrated textile is woven from the CSF to enable effective energy (mechanical and droplet energy) harvesting and personal thermal management functions. Furthermore, scenarios for the energy supply, motion detection, and outdoor use of electronic fabrics for electronics applications are demonstrated, opening new avenues for the functional integration of electronic textiles.
研究领域:
材料科学
·
柔性电子
·
能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2017
·
IF 4.208
Huajun Feng,Chenyi Tang,Qing Wang,Yuxiang Liang,Dongsheng Shen,Kun Guo,Qiaoqiao He,Thilini Jayaprada,Yuyang Zhou,Ting Chen,Xianbin Ying,Meizhen Wang
This study reports a high-performance 3D stainless-steel photoanode (3D SS photoanode) for bioelectrochemical systems (BESs). The 3D SS photoanode consists of 3D carbon-coated SS felt bioactive side and a flat α-Fe 2 O 3 -coated SS plate photoactive side. Without light illumination, the electrode reached a current density of 26.2 ± 1.9 A m −2 , which was already one of the highest current densities reported thus far. Under illumination, the current density of the electrode was further increased to 46.5 ± 2.9 A m −2 . The mechanism of the photo-enhanced current production can be attributed to the reduced charge-transfer resistance between electrode surface and the biofilm with illumination. It was also found that long-term light illumination can enhance the biofilm formation on the 3D SS photoanode. These findings demonstrate that using the synergistic effect of photocatalysis and microbial electrocatalysis is an efficient way to boost the current production of the existing high-performance 3D anodes for BESs.
研究领域:
环境科学
·
生物技术
·
材料科学
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Guangzhao Zhou,Ziyu Wang,Xiaochao Wang,Yiran Zhang,Xuteng Zhao,Qi Chen,Ting Chen,Zhen Huang,He Lin
Nonthermal plasma catalysis offers the potential to synthesize ammonia on a distributed scale under ambient pressure by consuming renewable electricity. Clarifying the relationship between plasma discharge and the role of catalysts is beneficial to the performance improvement of nonthermal-plasma-catalytic ammonia synthesis (NTPCAS). In this study, the plasma discharge was enhanced using CeO2 and Fe2O3/CeO2 (Fe/Ce) mechanically mixed with dielectric Al2O3, recorded as Ce@Al and Fe/Ce@Al, respectively, and the promoting effect of plasma discharge enhancement on the catalytic role of Fe/Ce and CeO2 in NTPCAS was investigated in a dielectric barrier discharge reactor under atmospheric pressure. The results indicate that the concentration of ammonia synthesized using Fe/Ce was only 2.7% higher than that synthesized using CeO2 and that synthesized using Fe/Ce@Al was 36.5% higher than that synthesized using Ce@Al and 102.6% higher than that synthesized using Fe/Ce at maximum. In addition, the ammonia production rate of Fe/Ce in Fe/Ce@Al with the optimum Al2O3 mixing ratio was 8.8 times that in pure Fe/Ce. U–I curves, U–Qc curves, and self-luminous optical imaging results of the discharge region packed with the catalysts indicated that Al2O3 mixing effectively strengthened the plasma discharge. Catalyst characterization showed that Fe/Ce had better catalytic properties than CeO2, explaining the better performance of Fe/Ce@Al than that of Ce@Al in the NTPCAS. In situ N2 and H2 adsorption, desorption, and reaction behaviors over catalysts revealed that significantly improved N2 adsorption and activation over Fe/Ce@Al under plasma conditions were the key to NTPCAS. The strategy of mixing highly active ammonia synthesis catalysts with discharge-enhanced materials can significantly improve the performance of NTPCAS catalysts, thus providing a novel approach to designing catalysts for NTPCAS.
研究领域:
化学工程
·
催化
·
等离子体科学
·
材料科学
✓ 已验证
DOI
高影响因子
Materials Today Communications
·
2022
·
IF 3.662
Shuangfeng Wu,Chunchun Li,Huina Wei,Xingping Song,Laijun Liu,Jungu Xu
The tetragonal LiNbWO 6 (α−LiNbWO 6 ) with a trirutile structure was previously reported to have good lithium ion conductivity. However, the electrical properties of the hexagonal LiNbWO 6 (β−LiNbWO 6 hereafter) polymorph have not been reported yet mainly due to the difficulty to obtain single-phase. Herein, by quenching the sample from high temperature to room temperature at ambient air condition, a series of pure-phase β−LiNb 1- x Ta x WO 6 ( x = 0, 0.05, 0.1) materials were successfully prepared. The phase evolutions and conductivities of these materials were investigated by variable temperature X-ray diffraction and alternating current impedance spectroscopy techniques, respectively. The results revealed that lithium ion conduction also dominated in this hexagonal polymorph of LiNbWO 6 and an interesting great ionic conduction enhancement behavior was observed at a temperature region of 660–800 °C due to the minor phase transition from hexagonal to tetragonal. In addition, the possible ionic conducting mechanisms in both the tetragonal and hexagonal LiNbWO 6 materials were studied by the bond-valence-based method for the first time. The results disclosed two-dimensional and three-dimensional lithium ion migration pathways for the tetragonal and hexagonal LiNbWO 6 , respectively.
研究领域:
材料科学
·
电化学
·
固体化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）