Bioresource Technology Reports
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2022
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IF 0
Sen Lin,Yihong Guo,Lei Zhou,Hongjun Yang
Quantitative effects of surface oxidation on Cd 2+ adsorption performance of biochar derived from long-root Eichhornia Crassipes plants were systematically investigated. It was revealed that oxidation degree was positively related with the intensity of surface functional groups and harmless for the structural stability, while biochar yield would decline sharply resulting from for over-oxidization. Correspondingly, the Cd 2+ adsorption capacity exhibited an uptrend with the increasing oxidation on account of the abundant adsorption sites. Moreover, Cd 2+ adsorption on the biochar with different oxidation degrees were also investigated comprehensively, indicating adsorption performances in a similar trend highly sensitive to solution pH and ionic strength . In addition, the adsorption isotherms were found to manifest the saturated adsorption capacity for Cd 2+ increased from 0.333 mol/g to 0.487 mmol/g at 30 °C by strengthening oxidation. All synthesized biochar could keep consistent adsorption performance in multiple adsorption-desorption cycles.
研究领域:
环境科学
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材料科学
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生态学
✓ 已验证
DOI
Journal of Energy Storage
·
2024
·
IF 8.9
Huanzhong Zeng,Qianghong Wu,Rui Liu,Yuanyou Peng,Fuliang Zhu,Fen Ran
Cobalt is a common contaminated metal exists in industrial wastewater and is also widely used in the field of energy storage as electrode materials. Cobalt(II) is the most familiar water-soluble form of cobalt element and its emission to environment causes serious problems. Traditional physical and chemical methods are unable to fully eradicate cobalt(II) in wastewater, especially at low concentrations. Therefore, phytoremediation is proposed and myriophyllum spicatum is chosen as the subject for absorbing cobalt(II) presented in the simulated wastewater. The results show that the myriophyllum spicatum can prominently but finitely absorb cobalt(II) from simulant wastewater; in order to reuse recycled cobalt(II), the composite material is obtained after carbonization and is applied to supercapacitors as electrode material. Under the condition of a current density of 0.5 A/g in 6 M KOH, the specific capacitance is 275 F/g, where good charge storage capacity and rate performance are obvious compared with other non-activated biomass-derived carbon materials.
研究领域:
环境科学
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能源材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Liru Su,Qianghong Wu,Jianzhou Niu,Guangbi Gong,Fen Ran
A novel strategy of an in situ design precursor has been proposed by absorbing nanoplastic with Eichhornia crassipes. Eichhornia crassipes as the precursor has natural structural advantages. This natural complex network structure ensures the stability of the material and facilitates the efficient transportation of electrolytes in the whole material. The presence of polystyrene nanoplastics (PS NPs) will change the graphitization degree and promote pore formation in carbon materials during carbonization. The obtained carbon materials have an excellent pore structure, large specific surface area (765.202 m2/g), and high graphitization degree. Meanwhile, the Eichhornia crassipes–polystyrene (EC-PS25) carbon electrode material fabricated from the above plant precursor exhibits a specific capacity of 519.0 F/g at 0.5 A/g. This study provides a new idea for improving the performance of carbon-based electrode materials.
研究领域:
环境科学
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材料科学
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植物学
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2021
·
IF 7.086
Yan Yan,Yang Deng,Wenjing Li,Wei Du,Yangyang Gu,Jiayi Li,Xiaoguang Xu
The selection of aquatic plants at different growth stages and their absorption, migration, and transformation mechanisms has yet to be clarified. In this study, Eichhornia crassipes at the seedling and mature stages were selected to uptake antibiotics under hydroponic conditions. The results showed that the enrichment of ciprofloxacin (CIP) in roots at the seedling and mature stages were 7.72～2114.39 μg g −1 and 0.07～3711.33 μg g −1 , respectively. The enrichment of CIP in aerial parts at the seedling and mature stages were 16.38～24.24 μg g −1 and 9.55～20.13 μg g −1 , respectively. The translocation from roots to aerial parts at the seedling stage was high, as evidenced by the relatively higher transfer factor (TF). In addition, eight and ten major metabolic products were observed in the tissues of seeding and mature stage of E. crassipes , respectively. The metabolic pathway of CIP was short at the maturity stage, and CIP had a strong upward migration ability at the seedling stage, facilitating long-time photodegradation . However, E. crassipes exhibited a poor CIP tolerance at the mature stage and decayed relatively early. Therefore, the seedling stage of E. crassipes was proposed to be applied for phytoremediation , and these findings might improve the ability to phytoremediation of antibiotic-contaminated water.
研究领域:
环境科学
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植物学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Chang-Hong Wang,Yi-Yue Tang,Yan-Jun Li,Fu-Lan Xiao,Lian-Di Zhou,Qi-Hui Zhang,Chun-Su Yuan
Excessive use of enrofloxacin has detrimental impacts on human health and the ecological environment. Consequently, there is an urgent need to develop a rapid, sensitive, and inexpensive platform for the detection of enrofloxacin. Herein, Eichhornia crassipes , an aquatic invasive plant, was utilized to prepare nitrogen-doped carbon dots for constructing the enrofloxacin-imprinted electrochemical sensor. The combination of nitrogen-doped carbon dots and multi-walled carbon nanotubes enhanced electrode conductivity and enriched active binding sites, improving sensor sensitivity. Meanwhile, highly biocompatible nicotinamide and L-cysteine were used as functional monomers to construct imprinting layers, enabling highly specific dual-site recognition of enrofloxacin. The sensor exhibited robust recognition capability for enrofloxacin under optimized conditions, offering a wide analytical range (0.05-100 μM) and low detection limit (0.0343 μM). Notably, the prepared sensor showed adequate recovery levels for analysis of real samples (fish flesh = 95.79%-110.59%, lake water = 97.22%-106.75%). Finally, the devised sensor performed favorably in the aqueous environment and meat products compared to standard methods, demonstrating its significant potential for trace enrofloxacin monitoring.
研究领域:
分析化学
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环境科学
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材料科学
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电化学
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纳米技术
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传感器技术
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食品安全
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水质监测
✓ 已验证
产品关联
DOI
高影响因子
Water
·
2024
·Vol. 16
·期 11
·1513
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IF 3
Jingqi Huang,Zhen Zhao,Jing Liu,Shiyue Li
Jiangsu High-Tech Fluorochemical Industrial Park in Changshu City, Jiangsu Province, is the largest fluorochemical industrial park in Asia. The occurrence of per- and polyfluoroalkyl substances (PFASs) in surface water and widespread local plants was investigated in Jiangsu High-Tech Fluorochemical Industrial Park. Thirty-two target PFASs were detected in dissolved-phase, particle-phase and plant samples. The concentrations of total PFASs ranged from 1650 to 8250 ng/L in the dissolved-phase samples, 132 to 6810 ng/g dw in the particle-phase samples and 25.8 to 9460 ng/g dw in different plant tissues. Perfluorohexanoic acid (PFHxA), Perfluorooctanoate acid (PFOA) and 6:2 fluorotelomer carboxylic acid (6:2 FTCA) were predominant PFASs and contributed 80−91% to ΣPFAS in water samples. A total of 67 emerging PFAS were identified in all samples using nontargeted analysis.Typha orientalisshowed better accumulation ability, with an average ΣPFAS concentration of 3450 ng/g dw and the highest root concentration factor (RCF) of 171.Typha orientalis,Eichhornia crassipesandAlternanthera sessilishave potential for use in PFAS phytostabilization.
研究领域:
环境科学
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化学
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生态学
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毒理学
✓ 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）