ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2023
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IF 6.8
Lei Wang,Yuanhui Zhu,Jie Gu,Xiaogang Yin,Liguo Guo,Lingling Qian,Lili Shi,Min Guo,Guixiang Ji
Microplastics (MPs) and bisphenol AF (BPAF) are two environmental pollutants that usually coexist in the natural environment. Studies of MPs or BPAF have gradually increased in recent years, but few studies have focused on the combination toxic effects. In this study, the subchronic model of adult zebrafish was exposed to 1 mg/L nanolevel microplastics and 200 μg/L BPAF for 45 days; the parental zebrafish were spawning every 3 days during exposure, and the effects of continuous poisoning were examined on the offspring after 1–9 spawns. The results showed that single BPAF exposure or BPAF and nanoplastic coexposure can both decrease the number of eggs laid and the locomotor behavior of parental zebrafish and impact the hatching rate, mortality, body length and locomotor behavior of offspring zebrafish, especially in 7–9 spawn. BPAF were accumulated in parental zebrafish intestinal in 334.62 ng/g in BPAF group and 594.52 ng/g in nm+BPAF group, and accumulated in whole offspring zebrafish for 281.6 ng/g in BPAF group and 321.46 ng/g in nm+BPAF group. Neurodevelopmental, inflammation, apoptosis and oxidative stress-related genes were also significantly increased after 7–9 spawn. In addition, the exacerbated accumulation in the BPAF+nm group in parental and offspring zebrafish may be the reason for the accelerated toxic effect in the present research. In this study, we investigated the combined effects of nanoplastics and BPAF on parental and offspring zebrafish in the aquatic environment to identify the accumulative toxic effects and provide new experimental support for assessing the effects of coexposure on aquatic organisms.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
·
IF 8.6
Yun Guo,Wenjie Zhao,Shuyu Dai,Jian Mao,Qidong Zhang,Zhengkun Xie,Wenfen Zhang,Wuduo Zhao,Ajuan Yu,Shusheng Zhang
Herein, a highly stable (NAllyl) 4 -bridged alyzacalix[4]pyridine monolithic column (nAC4P@capillary) was fabricated by copolymerizing nAC4P with GMA and EDMA into a stationary phase through a simple olefin addition reaction. The physicochemical properties of the prepared materials were characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TGA), energy dispersive X-ray (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR) and elemental analysis (EA). A wide range of analytes with various properties was well separated and demonstrated the synergistic effect of the various interaction sites. The maximum column efficiencies (N max ) for all the analytes reached 62,368 plates/m, and the relative standard deviations (RSDs) of the daily retention times of alkylbenzenes, measured over six months were all lower than 5.63%. Non-covalent interaction analysis reveals that nAC4P@capillary can effectively combine the advantages of electronic configurations, π-π interactions, CH-π interactions, O–H…N hydrogen bonds and lone pair-π interactions, providing excellent prospects for high-performance chromatographic separation .
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JOURNAL OF CHROMATOGRAPHY A
·
2022
·
IF 4.601
Yang Feng,Min Sun,Mingxia Sun,Jiaqing Feng,Haili Sun,Juanjuan Feng
Polyamidoamine dendrimers with different generations (G1-G5) were synthesized in situ on silica progressively via Michael addition and amidation reactions. A sequence of materials was characterized by elemental analysis and Brunauer-Emmett-Teller test, the content of each element (C, H and N) was increased but the surface area was reduced gradually from G1 to G5. These materials were separately packed in a stainless steel column (10 × 4.0 mm, i.d.) for SPE . These SPE columns were combined with high performance liquid chromatography (HPLC) to establish an online SPE-HPLC analysis. According to the chemical structures of materials, polycyclic aromatic hydrocarbons (PAHs) and bisphenols as model analytes were selected to investigate the extraction performance and the extraction mechanism, so as to reveal the extraction performance-structure relationship of G1-G5. The extraction performance was improved with the increase of functional groups from G1 to G4 or G5, the hydrophobic effect played main role accompanied with possible weak hydrophilic, hydrogen-bonding and electrostatic interactions in extraction mechanism. The adsorption capacity, enrichment factor, partition coefficient and extraction efficiency for PAHs and bisphenols reached to 17.52 µg g −1 and 2.70 µg g −1 , 5353 and 3002, 5066 and 1197, and 90.09% and 60.05% respectively. Compared with commercial SPE materials, these dendrimer-grafted silica materials were inferior to C18, but better than silica. Furthermore, the G4 and G5 were separately selected to develop two online SPE-HPLC analytical methods for determining trace PAHs and bisphenols in real water samples, and satisfactory results were obtained.
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JOURNAL OF HAZARDOUS MATERIALS
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2022
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IF 14.224
Yongfei Tong,Peng Zhou,Yang Liu,Ningruo Wang,Wei Li,Feng Cheng,Bo Yang,Juan Liang,Yongli Zhang,Bo Lai
In order to accelerate the photo-Fenton reaction process of Fe(III) under visible light irradiation, BiOI was introduced into the Fe(III)/peroxydisulfate (PDS) system. The catalytic oxidation performance of vis-light/BiOI/Fe(III)/PDS system was evaluated using bisphenol AF (BPAF) as a representative organic contaminant . Within 30 min, nearly 100% of BPAF was degraded, proving that the system had an excellent ability to degrade organic pollutants in water. Free radical quenching experiments, electron spin resonance (ESR), and molecular probing experiments determined that the main reactive species in the system were hydroxyl radicals ( • OH) and sulfate radicals (SO 4 •− ). The comparative experiments showed that the degradation rates were closely related to the PDS consumption, while the Fe(II) absorbed on the surface of BiOI was responsible for the PDS consumption. The production pathway of Fe(II) was analyzed by XRD, FTIR and XPS characterization, the Fe(III) on the surface of BiOI was reduced by photogenerated electrons to generate Fe(II). The result confirmed that the reduction of Fe(III) by photogenerated electrons could effectively inhibit the recombination of electron-hole pairs, and accelerate the reduction progress of Fe(III)/Fe(II) cycle that was the rate-limiting step in PDS activation. Afterwards, a reliable mechanism for degradation of BPAF in visible light/BiOI/Fe(III)/PDS system was proposed. Finally, the influence of reactant dosages, visible light intensity , initial pH, humic acid (HA) and anions in the solution on the degradation of BPAF were discussed.
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CHEMOSPHERE
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2022
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IF 8.943
Jinghan Guo,Boyao Zhou,Shuangying Li,Yayan Tong,Zhi Li,Menghua Liu,Yanhui Li,Tongxu Qu,Qingxiang Zhou
Present work depicted a novel electrochemical sensor fabricated with magnetic carbon dots (M-CDs) and cetyltrimethylammonium bromide (CTAB) modified glassy carbon electrode (GCE) for selective measurement of 3,3′,5,5′-tetrabromobisphenol A (TBBPA) in beverages. The M-CDs composite material revealed good electrocatalytic activity, and CTAB has strong hydrophobic interaction which enable it have good enrichment capacity of hydrophobic compounds, and combination of them further enhances the electrochemical signal. Hence CTAB decoration can markedly improve the detection performance of TBBPA. Electrochemical properties of the fabricated sensor was investigated through performing cyclic voltammetry (CV). The morphology and functional groups of the modified materials were examined with transmission electron microscope (TEM) and Fourier transform infrared spectroscopy (FTIR). The results indicated that the synthesized material had a spherical-like structure, good dispersion properties and plenty of functional groups on the surface. The effects of incubation potential, incubation time, pH of electrolyte, and scanning rate on oxidation peak current were investigated. Under optimal conditions, the designed sensor had good linear range of 1 nM–1000 nM, and the detection of limit of the constructed sensor was 0.75 nM. The constructed sensor was utilized to detect TBBPA in vitamin water, scream drink and genki forest, and satisfactory detection performance had been achieved.
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JOURNAL OF MEMBRANE SCIENCE
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2022
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IF 10.53
Li Chen,Tahir Maqbool,Ghazanfar Nazir,Congyu Hou,Yulong Yang,Jianning Guo,Xihui Zhang
Endocrine disrupting compounds (EDCs) in the aquatic systems are of growing concerns that could undermine drinking water safety. In this study, manganese (III) oxide (Mn 2 O 3 ) based catalytic ceramic membrane (CCM) was developed for the activation of peroxymonosulfate (PMS), and its applicability has been tested in degrading the ten different EDCs (including bisphenol analogs (BPs)) in drinking water. The CCMs were synthesized at different calcination temperatures i.e., 850, 950, and 1150 °C. Optimal performance of CCMs/PMS was achieved at a higher degree of calcination. The CCMs/PMS has shown a potential to effectively degrade the EDCs at higher concentrations (mg/L) to trace levels (ng/L). The CCMs/PMS system adopted a non-radical pathway of degrading the EDCs through the extensive generation of singlet oxygen ( 1 O 2 ), as confirmed using quenching experiments and electron paramagnetic resonance (EPR) spectroscopy. 1 O 2 -based oxidation process showed special selectivity for the decontamination of phenols and bisphenols. The long-term performance of CCMs/PMS showed good stability in degradation of the EDCs in drinking water, also with efficient mineralization (TOC removal >55%) and negligible release of Mn (0.004 wt%Mn/min). CCMs/PMS system also showed high potential in improving water quality by reducing the disinfection byproducts (DBPs) formation potential, highest recorded for bromodichloromethane (CHCl 2 Br, 100%) and lowest for dichloroacetic acids (TCAA, ∼50%). The study provided a highly efficient catalytic ceramic membrane based advanced oxidation process (AOPs) for effective degradation multiple of EDCs in drinking water, and the findings of this work can be a baseline for full-scale water treatment applications.
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JOURNAL OF SEPARATION SCIENCE
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2022
·Vol. 45
·期 9
·1493-1501
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IF 3.614
Chengjiang Zhang,Hongmei Yuan,Zeyi Lu,Yuhuang Li,Lirong Zhao,Zhuomin Zhang,Gongke Li
Covalent organic frameworks with tunable porous crystallinity and outstanding stability have exhibited fascinating pretreatment performance as ideal extraction media. Herein, the β-ketoenamine-linked TpPa-1 synthesized by 1,3,5-triformylphloroglucinol and paraphenylenediamine was employed as the absorbent for online micro-solid phase extraction of trace bisphenols combined with high-performance liquid chromatography detection. A series of characterizations indicated that the TpPa-1 possessed large surface areas, high stability, and hydrophobicity. The main experimental parameters affecting the extraction efficiency were optimized in detail. Compared with four commercial sorbents, the TpPa-1 exhibited superior enrichment capacity for extracting bisphenols. Under the optimum conditions, the established method demonstrated a wide linear range and high sensitivity with the limit of detection ranging from 0.05–0.06 μg/L. Furthermore, the developed method was successfully applied to determine bisphenols in plastic samples. Bisphenol A was actually detected in a transparent box with a concentration of 0.31 μg/g, and the recoveries of the four bisphenols in the plastic samples were 80.5–116% with the relative standard deviation less than 9.2%. Such performance was attributed to recognition affinity, including the π-π affinity, hydrophobic effect, and hydrogen bond. These results demonstrated that TpPa-1 possessed great potential to be an excellent pretreatment medium for online separation and analysis of trace analytes in complex samples.
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ACS Applied Materials & Interfaces
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2022
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IF 10.383
Hao Zhang,Fei Xie,Zhang Zhao,Noor Ul Afsar,Fangmeng Sheng,Liang Ge,Xingya Li,Xiwang Zhang,Tongwen Xu
Tuning the crosslinking density of interfacial-polymerized nanofiltration (NF) membranes varying from loose to dense structures can make them meet the demand of various applications. The properties (e.g., pore size and porosity) of NF membranes can be tuned by choosing monomers with different structures and reactivities. Herein, tris(hydroxymethyl)aminomethane (THAM), a low-cost and green monomer, is first employed for the preparation of poly(ester amide) (PEA) thin-film composite membranes via interfacial polymerization. The moderate reactivity of THAM enables rational regulation of the crosslinking density of PEA membranes from loose to dense structures by varying the THAM concentration, which can hardly be achieved for traditional polyamide or polyester membranes. The developed PEA membranes with a wide tunability range of crosslinking densities broaden their potential utility in NF. PEA membranes with dense structures show exceptional desalination performance with a water permeance of 11.1 L m–2 h–1 bar–1 and a Na2SO4 rejection of 97.1%. However, loose PEA membranes exhibit good dye/salt separation performance with a dye removal rate over 95.0% and negligible NaCl rejection (<7.5%), as well as high water permeance (>45 L m–2 h–1 bar–1). This work implies that PEA membranes with tunable crosslinked structures provide new possibilities for the development of task-specific separation membranes.
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2022
·
IF 7.926
Gaofeng Zhou,Yongsheng Fu,Runyu Zhou,Li Zhang,Linyue Zhang,Jiewen Deng,Yiqing Liu
In this study, a novel heterogeneous peracetic acid (PAA)-based advanced oxidation process (AOP), viz. cobalt ferrite combined with PAA (CoFe 2 O 4 /PAA), was used to degrade organic contaminants . The best pH for rhodamine B (RhB) degradation in CoFe 2 O 4 /PAA system was at 7, and approximately 95% RhB could be removed within 10 min at this pH. Radical scavenging experiments indicated that organic radicals (i.e., CH 3 COO • and CH 3 COOO • ) were the dominant reactive species for RhB degradation. The X-ray photoelectron spectroscopy (XPS) analysis for the fresh and used catalysts suggested that the catalytic reaction mainly occurred on the surface of the catalyst. Increasing PAA dosage and CoFe 2 O 4 dosage could enhance the removal of RhB, while excess CoFe 2 O 4 dosage inhibited its degradation probably due to the clumping effect of magnetic nanoparticles . Five degradation products of RhB by CoFe 2 O 4 /PAA were identified and two degradation pathways of RhB were subsequently proposed, including bond cleavage and hydroxylation . CoFe 2 O 4 exhibited an excellent stability and reusability , and the removal rate of RhB could maintain at 92.4% after four cycles. Several kinds of organic contaminants were selected to evaluate the applicability of CoFe 2 O 4 /PAA system, and the results suggested that CoFe 2 O 4 /PAA system exhibited a selectivity for different contaminants.
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ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Shuai Yang,Yang He,Jinsong Leng
Reversible dynamic bonds are able to crack and recombine upon external stimuli, which endow polymers with exceptional self-healing, reprocessing, and reversible deformation ability. In this paper, we integrated the metal coordination bonds into shape memory poly(aryl ether ketone) (PAEK) to fabricate smart materials with multifunctionalities. Through tuning the metal ion content and species, the enhancement of shape memory behaviors was achieved, including the high recovery ratio (over 98%) and fixity ratio (over 98%), which was closely related to the synergic effect of the intrinsic motion ability of PAEK matrix and the cracking-recombination of coordination bonds. Besides, through the combination of the components with different Cu2+ contents, in addition to the components with Fe2+ coordination bonds, we fabricated the gradient shape memory structures with controllable shape memory and recovery behaviors. The manipulation of gradient coordination bonds resulted in different shape recovery speeds and directions. Furthermore, due to the dynamic cracking-recombination of coordination bonds, the metal-coordinated PAEK material exhibited the great self-healing and reprocessing performances, which were significant for largely extending its application range.
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Additive Manufacturing
·
2022
·
IF 11.632
Qinfei Xu,Wenhan Xu,Yang Yang,Xin Yin,Chenyi Zhou,Jinxuan Han,Xuefeng Li,Yingshuang Shang,Haibo Zhang
3D printed poly (ether ether ketone) (PEEK) parts have attracted considerable attention in the automotive, medical, and aerospace fields in the past two decades. However, the major obstacle to its further application is weak interlayer strength and severe mechanical anisotropy. Herein, amorphous poly (aryl ether ketone) (aPAEK) was designed as an interlayer reinforcement modifier to strengthen the interlayer strength and reduce mechanical anisotropy of 3D printed PEEK parts. By introducing 7 wt% aPAEK in PEEK filaments, the interlayer strength in 3D printed parts increased 130% from pristine PEEK to aPAEK/PEEK blends. The mechanical anisotropy in the XY plane was reduced to 1.1%, and its X-axis and Y-axis tensile strength still reached 89.2 ± 3.3 MPa and 88.1 ± 4.1 MPa, respectively. We demonstrate that these performance enhancements were due to the diffusion and entanglement of aPAEK between the layers. These remarkable results significantly improve the comprehensive mechanical properties of 3D printed PEEK parts, and expand its high-performance applications. This work also yields new insight into the development strategy of additive manufacturing materials by blending.
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COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2022
·
IF 9.463
Shuai Yang,Yang He,Yanju Liu,Jinsong Leng
In this paper, we synthesized the shape memory poly(aryl ether ketone) (PAEK) and fabricated the radially oriented CNTs enhanced PAEK composite actuators. The introduction of highly aligned CNTs endowed PAEK matrix great thermal stability, good mechanical properties, and excellent shape memory effect. The formation of CNTs conductive path in PAEK matrix was instrumental in improving thermal and electrical conductivity, promoting efficient heat/electric dual triggered shape memory effect with high recovery ratio, rapid shape recovery and low triggering voltage. In addition, we used aligned CNTs/PAEK composites with 15 wt% CNTs as voltage actuators, and designed the two kinds of voltage actuators (angle-mode and time-mode) to achieve the different actuating actions via the applied voltage (range from 8 V to 50 V). These efficient composite voltage actuators exhibited the excellent stability and durability in continuous voltage actuating, which were expected to open door for smart actuators and electronic devices.
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危险品化学品经营许可证（带存储）