JOM
·
2024
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IF 2.1
Yu Shi,Pan Hong,Ju Jianbin,Xia Guangping,Huang Yipeng,Ruan Guihua,Jiang Fuyang
In this study, carbon spheres decorated with nickel nanoparticles (ACS@Ni NPs) were prepared through arginine-assisted hydrothermal treatment, followed by high-temperature carbonization in a nitrogen atmosphere. ACS@Ni NPs displayed uniform size and excellent monodispersity. The specific surface area increased from 9.03 m 2 /g to 428.69 m 2 /g after carbonization. The ACS@Ni NPs were employed as adsorbents in dispersive magnetic solid phase extraction (d-MSPE) to extract methylnaphthalene and acenaphthene. The adsorption capacities of ACS@Ni NPs for methylnaphthalene and acenaphthene were 1592.75 μg g −1 and 1652.83 μg g −1 , respectively. In addition, ACS@Ni NPs sustained adsorption efficiencies > 90% even after ten reuse times. Coupled with high-performance liquid chromatography-ultraviolet detection technology, under the optimum experimental conditions, the detection limits of methylnaphthalene and acenaphthene were 0.58 and 0.12 ng mL −1 . The recoveries of methylnaphthalene and acenaphthene in all samples remained > 95%, with relative standard deviations < 4.5%. The results indicated that ACS@Ni NPs could be applied in environmental pollution treatment and sample preparation.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2018
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IF 2.829
Li Lu,Yan Lin,Qiwei Chai,Shanying He,Chunping Yang
Rice bran, bamboo and the biochar derived from them were used as four sorbents for the removal of acenaphthene from aqueous solution. The effects of coexisting metal ions and organic compounds on their sorption performances were investigated. The sorption capacity of acenaphthene by biochar prepared from rice bran and bamboo was significantly higher than the raw biomass. The coexisting Cu 2+ and Cr(VI) both inhibited the sorption of acenaphthene by the biochar, whereas the sorption of acenaphthene by the biomass was less affected by the coexisting ions. The coexisting phenanthrene exhibited obvious competition with acenaphthene on the biochar, but it showed no competition with acenaphthene on the biomass. The partition process was a dominate sorption mechanism for acenaphthene on the biomass, which was not easily affected by the coexisting substances. Both partition and surface adsorption were enabled for acenaphthene on the biochar, and the latter was more affected by coexisting heavy metals and organic compounds.
研究领域:
环境科学
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生态学
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高影响因子
SYNTHESIS-STUTTGART
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2019
·Vol. 51
·期 23
·4425-4433
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IF 2.867
Yong Jian,Ming Chen,Chao Yang,Wujiong Xia
A small molecule, namely nitroacenaphthene, is reported for the first time as a recyclable visible-light photocatalyst for the construction of the C=N bond from sulfonyl azides and amines. This scalable, site-selective protocol provides a convenient way to access various sulfonyl amidines under mild conditions. Two reaction pathways are proposed, according to different transformation patterns.
研究领域:
有机化学
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光催化
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DOI
高影响因子
APPLIED SURFACE SCIENCE
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2021
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IF 6.707
Yuxuan Dai,Yuting Wang,Gancheng Zuo,Jijie Kong,Yang Guo,Cheng Sun,Qiming Xian
We report a simple strategy to synthesize the Ag 3 PO 4 nanopolyhedrons with regular morphology and uniform size under mild conditions. The photocatalytic properties of the composite were optimized by adjusting the content of Ag nanoparticles. The as-prepared photocatalysts were characterized and the photocatalytic performances were evaluated by the degradation of acenaphthylene (ANY) under visible-light illumination. The surface plasmon resonance (SPR) of appropriate Ag nanoparticles was generated on surface under visible light irradiation, which enhanced the absorption and utilization of visible light. At the same time, the conductivity of Ag promoted the separation and transfer of photogenerated carriers, provided active sites for the reaction, and enhanced the photocatalytic degradation efficiency through the generation of active species. As a result, the optimized composite exhibited enhanced visible-light photocatalytic activity of 0.03512 min −1 and higher removal rate of 97.3% for ANY (4 times and 1.8 times higher than that of pristine Ag 3 PO 4 , respectively), more photogenerated active species (h + and •O 2 – ) and relatively high stability (4 times of cycle experiments). In addition, the possible degradation pathway of ANY was proposed. The work of this paper has a crucial guiding significance for the working principle and design direction of silver semiconductor composite photocatalysts with surface plasmon effect.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2022
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IF 7.129
June Zhang,Kexin Wang,Jing Guo,Yong Huang,You Wei,Kun Jia,Yuan Peng,Huiqiang Lu
Acenaphthene is a polycyclic aromatic hydrocarbon (PAH) that is a widely distributed environmental pollutant that accumulates in organisms and leads to health risks in humans. Although acenaphthene is reported to be toxic to aquatic organisms, its effects of acenaphthene on the livers of these organisms have not been evaluated. Here, zebrafish were used as an experimental model. Zebrafish larvae were exposed to 4.5, 5.5, and 6.5 mg/L acenaphthene for 72 h while adult zebrafish were exposed to 1.5, 2, and 2.5 mg/L acenaphthene for 28 days. We investigated the mechanism by which acenaphthene causes liver toxicity in zebrafish. The results showed that acenaphthene affected the early development of zebrafish and led to mitochondrial damage by promoting the production of reactive oxygen species (ROS) resulting in oxidative stress. The expression of genes related to inflammation and apoptosis was analyzed, observing up-regulation of the pro-inflammatory factors IL-8 , TNF-α, and IL-6 . The pro-apoptotic genes p53 , Caspase-3 , and Bax and the Bax/Bcl-2 ratio were up-regulated, while the anti-apoptotic gene Bcl-2 was down-regulated. In addition, we investigated the effects of acenaphthene on liver metabolism. When exposed to acenaphthene, the glycogen content of the liver decreased, while lipid accumulation increased together with alterations in related indicators of liver metabolism. In conclusion, acenaphthene induced oxidative stress through ROS production, leading to mitochondrial damage and activation of pathways associated with inflammation and apoptosis, resulting in hepatotoxicity. This affects normal liver metabolism. Our results revealed the mechanism of hepatotoxicity in zebrafish acenaphthene, and provided new evidence for a more comprehensive understanding of the hepatotoxicity of acenaphthene.
研究领域:
环境毒理学
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分子生物学
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动物学
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生物化学
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DOI
PubMed
高影响因子
DYES AND PIGMENTS
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2021
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IF 4.889
Haifeng Lu,Lichao Xu,Hua Wang,Shengyu Feng
Fluorescent silicone polymers have attracted much attention owing to their strong fluorescence and high stabilities. However, most of these silicone polymers have suffered from fluorescence quenching caused by aggregation in high concentrations. In this work, 7, 11-diphenyl-8 H - acenaphth[1, 2 - f ] isoindole-8, 10 (9 H ) - dione functionalized polysiloxane (PMDF) with strong blue fluorescence was successfully synthesized via Diels-Alder reaction. Besides high thermal stability, PMDF showed unique aggregation-induced emission enhancement in high concentrations, indicating it is an excellent fluorescent silicone polymer in both disperse and aggregate state. Moreover, the product polymer showed highly sensitive fluorescence response to Fe 3+ , with low detection limit to 0.895 ppm and a high selectivity in the present of other metal ions. This work may open a new window for exploring fluorescent polymers as ideal probe for Fe 3+ .
研究领域:
材料科学
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分析化学
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高分子化学
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高影响因子
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
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2020
·Vol. 34
·期 21
·e8899
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IF 2.2
Hanfeng Jin,Jiuzhong Yang,Aamir Farooq
Rationale Aromatic hydrocarbons play an important role in the formation and growth of polycyclic aromatic hydrocarbon (PAH) and soot particles. Measurements of their absolute photoionization cross-sections (PICSs), that benefit the quantitative investigation of mass spectrometry, are still lacking, however. Methods PICSs of some aromatic hydrocarbons were measured with tunable synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS). Nitric oxide and benzene were chosen as standard references for PICS calibration, since their photoionization cross-sections are well documented in the literature. Binary liquid mixtures of the investigated molecules and their specific solvents were used in the measurements. Results The investigated aromatics include naphthalene, phenanthrene, 1-methylnaphthalene, indene, 2-/3-/4-methylphenylacetylene, 2-methylindene, diphenylacetylene, 1-/2-ethynylnaphthalene and acenaphthylene. Photo-induced fragments from the molecules were also observed with increasing photon energy. Conclusions Based on our measurements and literature data, PICSs of most aromatic molecules have very similar values beyond their ionization energies. However, molecules that contain the phenylacetylene structure have PICSs higher than other aromatics.
研究领域:
分析化学
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质谱学
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大气化学
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环境科学
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DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Yun Wu,Yanqun Yang,Ming Wen,Jing Xie,Linchun Bao,Shuting Yang,Xiangming Luo,Xingyi Wang,Qianchun Zhang
Monoamine neurotransmitters play vital roles in cognitive and various physiological and pathophysiological processes, but their trace levels, small sample volumes, and complex biological matrices in biological samples pose significant analytical challenges. This study developed a novel method for the simultaneous quantification of six monoamine neurotransmitters—tyrosine, vanillylmandelic acid, tryptophan, 3,4-dihydroxyphenylacetic acid, 5-hydroxyindole-3-acetic acid, and homovanillic acid—in human serum and urine. The method utilizes magnetic solid-phase extraction coupled with ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). A multifunctional magnetic composite, polyethylenimine@polymer dopamine hydrochloride@NH 2 -MIL-53(Al)-SiO 2 @Fe 3 O 4 , was synthesized, exhibiting high extraction selectivity and capacity and achieving an extraction range of 9.61–25.4 nmol/mg for the target neurotransmitters. The analytical method, optimized for the aforementioned composite, exhibited robust linearity for all six monoamine neurotransmitters, with correlation coefficients ( R 2 ) exceeding 0.998. The limits of detection (S/N = 3) ranged from 1.1 to 22 ng/L, indicating high sensitivity. Recovery rates for the targeted analytes varied between 94.5 % and 112 %, and relative standard deviations remained within the range of 1.5–9.4 %. These findings confirm that the developed methodology is sensitive, accurate, selective, and reliable for the quantitative determination of trace monoamine neurotransmitters in complex biological samples.
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高影响因子
MARINE POLLUTION BULLETIN
·
2025
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IF 4.9
Ruicong Gao,Jiaqi Lu,Zhixuan Wei,Hao Xu,Siyuan Jing,Minghuo Wu
PAHs, a group of persistent organic pollutants with significant carcinogenic and mutagenic effects, are widely distributed in the environment and can accumulate in sediments, posing potential threats to mangrove ecosystems and human health. This study is one of the most recent studies that presents an analysis of the vertical contamination characteristics of PAHs in mangrove sediments down to a depth of 80 cm, utilizing a combination of solid-phase extraction and gas chromatography–mass spectrometry. The results showed that the mean value of PAHs was 258.82 ng/g (range from 226.41 to 320.07 ng/g) in the studied mangrove areas (Beihai City, Guangxi). The results indicated a decline in PAH concentrations with increasing sediment depth, with values of 259.3 ng/g in surface sediments (0–10 cm), 240.9 ng/g in intermediate sediments (30–40 cm), and 241.1 ng/g in deeper sediments (60–70 cm). This suggests that PAHs not only remain in the surface layer of the sediment, as in previous studies, but also migrate vertically within the sediment. Based on the results, the potential ecological risks of PAHs were also evaluated by the ERL/ERM model. After environmental risk assessment, it was found that among the six PAHs studied, the contents of all except acenaphthene were lower than the ERL, indicating a low ecological risk. This study elucidates the vertical distribution of PAHs in mangrove sediments, offering crucial data for ecological risk assessment and establishing a foundation for future research on PAH transport mechanisms and their ecological impacts, thereby informing environmental management strategies.
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PubMed
高影响因子
Food Chemistry-X
·
2026
·
IF 9.2
Zan Tan,Fengping Hou,Tingyi Qiao,Nan Dong
The migration of harmful plastic additives with diverse polarities and boiling points from plastic food contact materials (FCMs) poses a risk to human health, necessitating simple and effective analytical methods. Herein, a π-conjugated truxene (Tr) was covalently bonded with cucurbit[6]uril (Q[6]) to afford a novel Q[6]-Tr compound, which was fabricated as both a solid-phase microextraction (SPME) fiber coating and a gas chromatography (GC) stationary phase to establish an integrated SPME-GC system. The proposed method determined 9 plastic additives from 4 categories, showing good linearity (R 2 ≥ 0.9863) over 5–1000 μg/L, low detection limits (0.21–0.45 μg/L), enrichment factors of 13–42, and satisfactory recoveries (70.8–97.5%), with performance superior to commercial counterparts. Practical application quantified BHT migration from takeout containers (2.341 μg/L) and DIBP from containers and plastic bags (2.504 and 4.954 μg/L). This dual-functional Q[6]-Tr system offers an organic solvent-free, universally applicable approach for multiclass additive analysis in FCMs.
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高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2026
·
IF 9.2
Maolin Wang,Haoyang Fu,Yanchun Fan,Gang Zhao,Tianwen Liu,Yi Liu,Qingqing Wu,Ying Huang
Persulfate (PS)-based advanced oxidation of polycyclic aromatic hydrocarbons (PAHs) in carbonate-rich water is severely constrained by radical scavenging and surface passivation of iron-based activators. Here, a dithionite–zerovalent iron–copper (DTN–ZVI–Cu) ternary system was developed to promote persulfate activation toward predominantly non-radical oxidation under bicarbonate-rich conditions. DTN and ZVI accelerated Cu(II)-to-Cu(I) reduction while simultaneously regenerating the ZVI surface, thereby sustaining Cu-centered redox turnover and facilitating the formation of Cu(III)-like oxidizing species. In parallel, DTN promoted sulfur-centered conversion pathways that favored 1 O 2 generation. These non-radical oxidizing pathways are generally less susceptible to inorganic-anion scavenging than conventional sulfate and hydroxyl radicals. Under standard conditions, the system achieved 91% acenaphthene removal within 60 min ( k obs = 0.039 min −1 ), an 8.7-fold kinetic enhancement over ZVI/PS alone. Moderate bicarbonate further promoted degradation, with k obs reaching 0.13 min −1 at 250 mg/L HCO 3 − , which is consistent with a plausible role of copper–carbonate complexation in stabilizing Cu redox cycling and favoring non-radical oxidation pathways. XPS analysis suggested that DTN–ZVI coupling elevated the reactive copper pool (Cu(I) + Cu(III)) to 57% of total surface copper. Applied to synthetic wastewaters, the system maintained 90–96% PAH removal at optimal dosages, indicating strong performance across complex saline matrices. This work demonstrates the feasibility of using coexisting Cu(II) as a catalytic resource for non-radical persulfate activation in carbonate-rich water.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Wang Kai Tong,Chaomeng Dai,Jiajun Hu,Mei Ru Yue,Yun Dong Liu,Bu Li,Jia Jie Zou,Jia Wang,Han Tang,Min-tian Gao,Yucang Liang,Wenjuan Wang,Jixiang Li
Hydrophobic organic contaminants (HOCs) threaten human health and ecosystems. The most economical and low-carbon remediation method employs surfactants to mobilize HOCs, followed by separation using carbon-based materials. A carbon-structure superimposition strategy (CSSS) was developed to prepare interface selectivity-based colloidal biochar (CBC-AO). In a solution with a pollutant concentration of 2.5 mg/L phenanthrene, a 99 % removal efficiency was achieved, and a 100 % recovery rate was obtained for common anionic surfactants. Notably, CSSS offers a unique approach to using lignocellulose-based biomass (LB)-derived biochar as an alternative to activated carbon (AC). The uniqueness of CSSS lies in revealing the carbon structure transfer mechanism, where cellulase pretreatment converts LB into aromatic carbon substrates, followed by air oxidation and colloidal treatment to transform unfavorable carbon structures into those beneficial for selective adsorption. This modification grants biochar selectivity and stability, addressing the challenge of balancing different carbon structures and functions. CBC-AO achieved a 90 % reuse rate after six cycles. Compared with traditional biochar, its acute biological toxicity was reduced by 77 %, and its environmental friendliness was further increased. In terms of carbon emissions and cost, CBC-AO outperforms AC, reducing emissions by 0.62 tons of CO 2 per year, whereas AC increases emissions. CSSS overcomes traditional biomass selection limitations, broadening biomass options and providing efficient, economical, and carbon-negative alternatives to conventional carbon-based materials. Furthermore, integrating CSSS with biofuel production results in biochar performance comparable to commercial AC, potentially advancing both industries.
研究领域:
环境科学
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材料科学
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生物技术
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高影响因子
危险品化学品经营许可证（带存储）