CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Huimin Xie,Shuyu Zhu,Jingwen Cao,JuHyeong Lee,Yidan Yin,Deyue Zhou,Jing Yan,Hyeon-Ho Jeong,Tung-Chun Lee,Yuewen Zhang,Qiaosheng Pu,Yang Lan
Polycyclic aromatic hydrocarbons (PAHs) are significant environmental contaminants with considerable health risks, emphasizing the need for effective monitoring and identification. On-site detection of PAHs using surface-enhanced Raman scattering (SERS) remains challenging due to their weak adsorption on substrates and potential interference from the substrates themselves. To address these challenges, we developed hollow raspberry-like plasmonic nanoaggregates made of functionalized-polystyrene hollow microspheres (HM) decorated with gold nanoparticles (Au NPs). These nanoaggregates feature a hydrophobic inner cavity that effectively enriches PAHs, improving detection sensitivity. Through enhanced plasmonic coupling by carefully controlling Au NPs coverage on polystyrene (PS) surfaces, functionalizing the amino groups on the microsphere surface, and fine-tuning the Au NP to PS ratio, our method achieved detection limits of 4 × 10 −8 M for pyrene, 6 × 10 −7 M for fluorene, and 4 × 10 −7 M for benzo[a]anthracene. Moreover, this approach was effectively utilized for detecting PAHs in both Yellow River water and tap water. This study highlights the capabilities of hollow raspberry-like plasmonic nanoaggregates for qualitative and quantitative analysis of PAHs, thereby broadening the use of advanced nanomaterials in monitoring environmental water quality.
研究领域:
环境科学
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纳米技术
·
分析化学
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DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2026
·
IF 4.5
Peng Cui,Cailan Chen,Lilin Fang,Hanyu Zhang,Peiwen Wu,Kaihao Mo,Ge Niu,Yan Huang,Wenshuai Zhu,Zhichang Liu
Shaping of adsorbents is crucial for their practical implementation in chemical processes, yet often constitutes a synthesis bottleneck. Herein, we report the rapid, one-pot synthesis and direct shaping of a series of novel porous organic polymers based on cyclodextrin (CD) and p-phenylene diisocyanate (PPDI). The porosity of these monolithic materials was further tailored through controlled carbonization at elevated temperatures, yielding hierarchically structured carbons with tunable micro- and mesopores. Their adsorption performance was evaluated towards polycyclic aromatic hydrocarbons (PAHs), key chemical feedstocks and prevalent contaminants in catalytic cracking diesel. The optimized carbon, derived from β-CD-PPDI carbonized at 1000 °C (β-CD-PPDI-1000), exhibits a high BET surface area of 913 m 2 g −1 and demonstrates excellent PAHs uptake capacities (16.55 mg g −1 for naphthalene, 62.04 mg g −1 for anthracene, 12.00 mg g −1 for acenaphthene, and 35.25 mg g −1 for acenaphthylene). The adsorption process was analyzed through kinetic and equilibrium studies, revealing key mechanisms underlying the uptake behavior. These results position the shaped polymers and their derived porous carbons as promising, high-performance adsorbents for diesel purification. The presented strategy of rapid synthesis coupled with direct shaping offers a scalable and efficient pathway for manufacturing practical adsorbents, highlighting significant potential for industrial application in chemical engineering.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2018
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IF 6.735
Yan Kang,Huijun Xie,Bo Li,Jian Zhang,Huu Hao Ngo,Wenshan Guo,Zizhang Guo,Qiang Kong,Shuang Liang,Jie Liu,Tingting Cheng,Liwei Zhang
The role of mussels in laboratory-scale constructed wetlands (CWs) where wastewater was contaminated with five typical polycyclic aromatic hydrocarbons (PAHs) (three 3-ring PAHs and two 4-ring PAHs) was investigated in this study. The CWs performance and PAHs removal mechanisms were well studied. Results indicated that these five PAHs improved removal efficiencies of NO 3 -N but in the case of NH 4 -N accumulation occurred. Of the five added PAHs, the 4-ring PAHs were more refractory with higher concentrations in effluent than 3-ring PAHs. By monitoring the five PAHs concentration in water, mussels had excellent removal efficiency of the five PAHs (97%). According to the mass balance calculation, mussels promoted plant uptake of five PAHs, contributing 15.2% of five PAHs removal in CWs. The PAHs could also accumulate in mussels through ingested substrate. Thus, mussels presented a positive correlation with five PAHs purification at a depth of 0–10 cm in substrate, which was 34.7 μg/kg lower than the control group. Due to the purification and enhanced aerated degradation, mussels performed better in removing 3-ring PAHs in substrate, decreasing 8.3% for 3-ring PAHs compared to the control. A positive correlation between five PAHs addition and nirS , nrfA genes was observed. However, PAHs showed negative impact on nitrifying bacteria ( amoA ). The significant correlations between mussels and five PAHs made it possible to improve CWs for PAHs treatment with aquatic faunas.
研究领域:
环境科学
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生态学
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DOI
高影响因子
ARCHIVES OF MICROBIOLOGY
·
2021
·Vol. 203
·期 7
·4259-4272
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IF 2.552
Ahmad Manzoor,Ling Juan,Zhang Yanying,Sajjad Wasim,Yang Qingsong,Zhou Weiguo,Dong Junde
Polycyclic aromatic hydrocarbons (PAHs), originating from anthropogenic and natural sources, are highly concerned environmental pollutants. This study investigated the impact of two model PAHs (pyrene and phenanthrene) on bacterial community succession in the seagrass meadows sediment in a lab-scale microcosm. Halophila ovalis sediment slurry microcosms were established, one group was placed as a control, and the other two were treated with pyrene and phenanthrene. Bacterial community succession in response to respective PAHs was investigated by 16S rRNA amplicon sequencing. The results demonstrated that bacterial diversity decrease in each microcosm during the incubation process; however, the composition of bacterial communities in each microcosm was significantly different. Proteobacteria (37–89%), Firmicutes (9–41%), and Bacteroides (7–21%) were the predominant group at the phylum levels. Their abundance varies during the incubation process. Several previously reported hydrocarbon-degrading genera, such as Pseudomonas , Spinghobium , Sphingobacterium , Mycobacterium , Pseudoxanthomonas , Idiomarina , Stenotrophomonas , were detected in higher abundance in pyrene- and phenanthrene-treated microcosms. However, these genera were distinctly distributed in the pyrene and phenanthrene treatments, suggesting that certain bacterial groups favorably degrade different PAHs. Statistical analyses, such as ANOSIM and PERMANOVA, also revealed that significant differences existed among the treatments' bacterial consortia ( P < 0.05). This work showed that polycyclic aromatic hydrocarbon significantly affects bacterial community succession, and different PAHs might influence the bacterial community succession differently.
研究领域:
环境科学
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微生物学
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生态学
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DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2023
·
IF 13.6
Jinfeng Lu,Yuexian Liu,Ruili Zhang,Zhengyi Hu,Kai Xue,Biya Dong
Controversial results are reported whereby biodegradation of polycyclic aromatic hydrocarbons (PAHs) can be promoted or inhibited by biochar amendment of soil. Metabolomics was applied to analyze the metabolic profiles of amendment with biochar (BB) and biochar inoculated with functional bacteria ( Pseudomonas putida ) (BP) involved in phenanthrene (PHE) degradation. Additionally, metagenomic analysis was utilized to assess the impact of different treatments on PHE degradation by soil microorganisms. Results indicated that BB treatment decreased the PHE biodegradation of the soil indigenous bacterial consortium, but BP treatment alleviated this inhibitory effect. Metabolomics revealed the differential metabolite 9-phenanthrol was absent in the BB treatment, but was found in the control group (CK), and in the treatment inoculated with the Pseudomonas putida (Ps) and the BP treatment. Metagenomic analysis showed that biochar decreased the abundance of the cytochrome P450 monooxygenase (CYP116), which was detected in the Pseudomonas putida , thus alleviating the inhibitory effect of biochar on PHE degradation. Moreover, a noticeable delayed increase of functional gene abundance and enzymes abundance in the BB treatment was observed in the PHE degradation pathway. Our findings elucidate the mechanism of inhibition with biochar amendment and the alleviating effect of biochar inoculated with degrading bacteria.
研究领域:
环境科学
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微生物学
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土壤学
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代谢组学
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DOI
PubMed
高影响因子
MOLECULES
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2022
·Vol. 27
·期 3
·687
·
IF 4.927
Xianghui Kong,Ranran Dong,Thomas King,Feifei Chen,Haoshuai Li
Microbial degradation is a useful tool for inhibiting or preventing polycyclic aromatic hydrocarbons (PAHs) widely distributed in marine environment after oil spill accidents. This study aimed to evaluate the potential and diversity of bacteria Bacillus sp. PAH-2 on Benzo (a) anthracene (BaA), Pyrene (Pyr), and Benzo (a) pyrene (BaP), their composite system, aromatic components system, and crude oil. The seven-day degradation rates against BaA, Pyr, and BaP were 20.6%, 12.83%, and 17.49%, respectively. Further degradation study of aromatic components demonstrated PAH-2 had a high degradation rate of substances with poor stability of molecular structure. In addition, the degradation of PAHs in crude oil suggested PAH-2 not only made good use of PAHs in such a more complex structure of pollutants but the saturated hydrocarbons in the crude oil also showed a good application potential.
研究领域:
微生物学
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环境科学
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DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2024
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IF 5.9
Mingzhu Zhou,Ruihan Chen,Qiao Huang,Long Cang
Power consumption is a key factor that affects the cost of electrokinetic (EK) remediation technology. However, the impact of a periodic electric field on organic pollutant removal and energy saving when using EK enhanced chemical oxidation technology has been unclear. In this study, one experiment with a continuous current and five experiments with periodic electric fields of different periodic frequencies (1:1, 2:1, and 3:1) and power-off times (0.5, 8, and 24 h) combined with peroxymonosulfate (PMS) were performed to remove polycyclic aromatic hydrocarbons (PAHs) from soil. The results showed that the average current decreased along with an increase in the periodic frequencies (from 1:1 to 3:1). However, under the same periodic frequency (2:1) with different power-off times (0.5, 8, and 24 h), the currents were relatively close. Compared to the continuous current treatment, different periodic frequencies and power-off times all improved the PAHs removal rates, particularly those PAHs with high ring numbers. Among them, the treatment with the 2:1 periodic frequency and 1 day power-off time achieved the highest removal efficiency (36.1 % of total PAHs) and successfully enhanced PAHs removal in the anode area. Except for the treatment with the 1:1 periodic frequency and 1 day power-off time, the unit energy consumptions of the other periodic electric field treatments were lower than that of the continuous current treatment. This study demonstrates that a periodic electric field could reduce unit energy consumption and improve the PAHs removal efficiency, and the periodic frequency was a crucial factor. This study provides a new technical option for PMS-enhanced EK remediation of organic polluted soil and promotes the application and development of EK remediation technology.
研究领域:
环境科学
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污染治理
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DOI
高影响因子
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
·
2008
·Vol. 31
·期 1
·119-131
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IF 1.086
Bu Qing Wei,Zhang Zhi Huan,Lu Song,He Feng Peng
Vertical distribution of both the concentration and composition of polycyclic aromatic hydrocarbons (PAHs) in ten profiles in Beijing has been investigated. The results showed that PAH concentrations and compositions in topsoil from different sampling sites were different. PAH concentrations were much higher in topsoil of the investigated urban area, industrial region, and paddy field with wastewater irrigation than in other areas. Moreover, PAH concentrations in topsoil were much higher than those at greater depth, where the concentrations were relatively consistent in most soil profiles. The fingerprints of PAHs in the samples from topsoil (0–30 cm) in the same profiles were similar and were obviously different from those at greater depth, suggesting that PAH sources were consistent in topsoil samples and were discriminating between topsoil and deeper soils. PAHs in topsoil mainly arose from mixed sources of combustion of liquid fuel, coal, and/or wood, as well as wastewater irrigation, while those at greater depth were derived from soil genesis and the process of soil formation.
研究领域:
环境科学
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土壤学
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DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2021
·
IF 7.963
Zhengshi Chen,Haiyang Hu,Ping Xu,Hongzhi Tang
Polycyclic aromatic hydrocarbons (PAHs) commonly coexist in contaminated sites, posing a significant threat to ecosystem. Strains that degrade a wide range of substrates play important roles in bioremediation of contaminated environment. In this study, we reveal that Pseudomonas brassicacearum MPDS was able to remove 31.1% naphthalene of 500 mg/kg from soil within 2 d, while its relative abundance decreased significantly on Day 20, indicating its applicable potential in soil remediation . In addition to naphthalene, dibenzofuran , dibenzothiophene, and fluorene as reported previously, strain MPDS is able to degrade carbazole , phenanthrene , pyrene, and 2-bromonaphthalene. Moreover, NahA from strain MPDS has multi-substrate catalytic capacities on naphthalene, dibenzofuran, dibenzothiophene, phenanthrene, and 2-bromonaphthalene into dihydrodiols, while converts fluorene and carbazole into monohydroxy compounds according to GC–MS analysis. This study provides further insights into the exploration of soil remediation by strain MPDS and the mining of enzymes involved in the degradation of PAHs.
研究领域:
环境微生物学
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生物修复
·
酶学
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PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2023
·
IF 9.8
Zan Wang,Haiyang Hu,Zhan Zhang,Yongming Xu,Ping Xu,Hongzhi Tang
Polycyclic aromatic hydrocarbons (PAHs) and heterocyclic derivatives are organic pollutants which threaten ecosystems and human beings. In this study, a new strain, Shinella sp. FLN 14, was isolated and characterized. It can utilize fluorene as its sole carbon source and effectively co-metabolize multiple PAHs and heterocyclic derivatives, including phenanthrene , acenaphthene, and fluoranthene . Two possible metabolic pathways are proposed (i.e., salicylic acid pathway and phthalic acid pathway). Whole-genome sequencing revealed that strain FLN14 possesses a chromosome and four plasmids. However, when combined with ensemble genetic information, novel fluorene-degrading functional gene clusters were not located within the genome of FLN 14, except for some new dioxygenases and electron transport chains, which typically initiate the oxidation of aromatic compounds. In wastewater bioremediation, strain FLN14 removed nearly 95 % of PAHs within 5 days and maintained high degrading activity during the 18-day reaction compared to the control. Overall, our study provides a promising candidate to achieve bioremediation of PAHs-contaminated environments.
研究领域:
环境科学
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微生物学
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DOI
PubMed
高影响因子
Toxics
·
2024
·Vol. 12
·期 11
·796
·
IF 3.9
Xintong Li,Baocheng Qu,Jingyao Wang,Hongxia Zhao
Environmentally persistent free radicals (EPFRs) generated on particles under irradiation in water have attracted particular attention, and their formation mechanisms are not well understood. This study investigated the photoformation of EPFRs on both actual samples collected from an oil production plant in Panjin, Liaoning, China, and simulated Fe(III)-montmorillonite samples in water. The EPFRs detected on actual samples were not easily generated compared with those in the soil or in the air, based on the concentrations of identified PAHs. EPR signals in the range of 1017to 1018spin/g were detected on the simulated Fe(III)-montmorillonite samples. Their g factors were smaller than 2.0030, which indicated the generation of carbon-centered EPFRs. The primary byproducts were identified by chromatography–mass spectrometry (GC-MS), and a possible EPFR formation pathway during PAH degradation was proposed. Hydrogenation of PAHs during the photoformation of EPFRs was observed and might be due to the catalysis of the simulated particles and the interaction of the intermediates. Meanwhile, the effects of the typical anions (NO2−and Cl−) and the surfactant (TWEEN®80 and sodium dodecyl sulfate) were investigated and indicated that the phototransformation process and adsorption process would affect the formation of EPFRs. Overall, our study provided useful information to understand the photoformation of EPFRs in aqueous environments.
研究领域:
环境科学
·
化学
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Siyu Zhu,Shaojie Shi,Yuqi Yang,Fengjiao Jiang,Xiaoling Gu,Shaodong Jiang,Hongyun Niu,Yaqi Cai
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous and highly persistent in soil. Owing to the potential adverse effects of peroxides to soil ecosystems, oxidant-free advanced oxidation process (AOP) is highly demanded for PAHs remediation. We utilize the composites of phosphatized sludge biochars and core/shell Fe 3 P@Fe (PSL-Fe 3 P/Fe) as catalysts to decompose PAHs in soil. In a wide range of soil moisture, pyrene, benzo[ a ]anthracene, benzo[ a ]pyrene, indeno[1,2,3- cd ]pyrene, and dibenzo[ a , h ]anthracene are efficiently degraded by PSL-Fe 3 P/Fe within 6 h. For the first time, we find that reactive oxygen species resulting from internal micro-electrolysis (IME) of biochars (cathode) and Fe 3 P@Fe (anode) are sufficient for PAHs degradation. Strong adsorption, excellent electrical conductivity, high potential difference between Fe 3 P@Fe anode and biochars cathode, and acid-microenvironment provided by P 2 O 5 component trigger the remarkable reactivity of PSL-Fe 3 P/Fe. The environmental-benign PSL-Fe 3 P/Fe can eliminate the phytotoxicity of high-level of PAHs (200 mg/kg), recover soil microbial diversity, and promote the growth of lettuce Lactuca sativa .
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高影响因子
危险品化学品经营许可证（带存储）