FISH & SHELLFISH IMMUNOLOGY
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2018
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IF 3.185
Wei Shi,Xiaofan Guan,Yu Han,Cheng Guo,Jiahuan Rong,Wenhao Su,Shanjie Zha,Yichen Wang,Guangxu Liu
Exposure to heavy metals such as Cadmium (Cd) may exert detrimental impacts on the immune responses of marine bivalve species. However, the immunotoxicity of Cd on blood clams remains unknown to date. Furthermore, though Cd 2+ is known to compete with calcium (Ca 2+ ) ions for their binding sites in cells and inhibit Ca 2+ influx, whether Cd 2+ weakens the immune responses of marine bivalves through inducing intracellular Ca 2+ disorders still remains unclear. Therefore, the immunotoxicity of Cd 2+ at different waterborne Ca 2+ concentrations on blood clam, Tegillarca granosa , were investigated in the present study. Results obtained demonstrated that the total number, phagocytic activity , and red granulocytes ratio of the haemocytes were all significantly reduced after 10 days exposure of individuals to 25 μg/L Cd 2+ . However, when the waterborne Ca 2+ concentrations were elevated by 10% and 20% (approximately 370 and 410 mg/L, respectively), mitigation effects on the immune responses of individuals were detected. In addition, though the expressions of genes from the Ca 2+ signaling and Ca 2+ -related apoptosis pathways were significantly altered by Cd 2+ exposure, the expression patterns of these genes were similar to that of the control when the waterborne Ca 2+ concentrations were elevated, suggesting a relieving effect of waterborne Ca 2+ on Cd 2+ induced toxicity to haemocytes. The results obtained in the present study revealed that waterborne Cd 2+ may hamper the immune responses of T. granosa through influencing Ca 2+ signaling and Ca 2+ -related apoptosis pathways, which can be partially mitigated by elevating the waterborne Ca 2+ concentrations.
研究领域:
海洋生物学
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毒理学
·
免疫学
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DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2019
·
IF 3.218
Yaru Chu,Feng Gao,Fei Gao,Qingxiang Wang
The zeolitic imidazolate framework ZIF-8 was synthesized and mixed with chitosan (CS) solution to obtain a homogeneous dispersion. Then the dispersion of ZIF-8 and CS (ZIF-8-CS) modified glassy carbon electrode is fabricated and utilized for stripping voltammetric analysis of Hg 2+ , Cu 2+ , Pb 2+ and Cd 2+ for the first time. The large surface area effect and strong enriching effect of the nanosized ZIF-8 to the four heavy metal ions contribute to significantly enhance analytical signals. Under the optimum conditions, the stripping peak current densities linearly increased with Hg 2+ concentration in the range from 1.0 μM to 80.0 μM, and with Cu 2+ , Pb 2+ and Cd 2+ concentrations in the range from 1.0 μM to 100.0 μM. The analytical sensitivity for the four ions are estimated to be 14.20 μA·μM −1 ·cm −2 (Hg 2+ ), 2.797 μA·μM −1 ·cm −2 (Cu 2+ ), 5.203 μA·μM −1 ·cm −2 (Pb 2+ ) and 1.390 μA·μM −1 ·cm −2 (Cd 2+ ), respectively. The limits of detection for the four ions were estimated to be 0.0293 μM (Hg 2+ ), 0.108 μM (Cu 2+ ), 0.0619 μM (Pb 2+ ) and 0.135 μM (Cd 2+ ), respectively. The ZIF-8 based modified electrode also presented excellent anti-interference ability, and good reliability for monitoring the four ions in real water samples.
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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DOI
高影响因子
LANGMUIR
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2019
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IF 3.683
Chunya Li,Yayuan Yan,Quanzhou Zhang,Zhenbao Zhang,Langhuan Huang,Jingxian Zhang,Yongqiang Xiong,Shaozao Tan
The applications of graphene-based adsorbents were limited because of their complicated manufacturing technology and hi cost, thus it is very important to prepare new inexpensive and easily manufactured graphene-based adsorbents. Herein, novel GCP hydrogels with different graphene oxide (GO), chitosan (CS), and poly(vinyl alcohol) (PVA) ratios were facilely prepared through a method of freeze–thaw physical cross-linking, which was green and low-cost, and the structural characterization and adsorptive property of the optimum GCP1:2:4 hydrogel toward Cd2+ and Ni2+ in wastewater was evaluated. It was found that the GCP1:2:4 hydrogel had good mechanical strength and a special 3D interconnection porous structure. The isotherms of adsorption used the Langmuir model, and the kinetics of adsorption following the pseudo-second-order model were confirmed. Moreover, the adsorption property with respect to Cd2+ and Ni2+ in wastewater has been largely effected by the pH and was less influenced by the ionic strength and humic acid, and the GCP1:2:4 hydrogel possessed excellent adsorptive and recyclable properties. These results demonstrated that the GCP1:2:4 hydrogel could serve as a desirable adsorbent to get rid of heavy metal ions in sewage.
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
INORGANICA CHIMICA ACTA
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2022
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IF 3.118
Yuwei Dong,Jialin Ma,Zhou Yu,Xinxin Liu,Zhen Zhao
Herein, we report a reversible and easy assembled fluorometric probe (4-(quinolin-2-ylmethylene)aminoanisole, QMAA ) for the highly selective and sensitive detection of cadmium ion (Cd 2+ ) in DMF solution with PBS buffer (0.01 M, pH = 7.30). The strong fluorescence response of QMAA to Cd 2+ along with a bright blue fluorescence was mainly ascribed to the formation of the complex QMAA–CdCl 2 . The results show that the complexation can inhibit the C N isomerisation and photo–induced electron transfer (PET), and further lead to the occurrence of chelation fluorescence enhancement. The 1:1 stoichiometry of the complex between QMAA and cadmium ion was studied by fluorescence titration, Job’s plot analysis, 1 H NMR, FT–IR, and ESI–MS data, and was further confirmed by the single crystal structure of the complex QMAA–CdCl 2 . Density functional theory (DFT) calculations have verified the mechanism of fluorescence enhancement. In addition, the limit of detection of QMAA for Cd 2+ was as low as 0.1547 µM (at 10 –7 M level), which was lower than the acceptable limit of Cd 2+ level in drinking water defined by World Health Organization. The analog experiments about nature contamination of Cd 2+ in real samples were finished.
研究领域:
分析化学
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环境科学
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DOI
高影响因子
Processes
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2021
·Vol. 9
·期 10
·1829
·
IF 2.847
Liwen Zheng,Yongchao Gao,Jianhua Du,Wen Zhang,Yujie Huang,Qingqing Zhao,Luchun Duan,Yanju Liu,Ravi Naidu,Xiangliang Pan
The chitosan–EDTA modified magnetic biochar (E–CMBC) was successfully used as a novel adsorbent to remove heavy metals. The adsorption behaviour and mechanisms of E–CMBC to Cd2+, Cu2+and Ni2+were performed in single and binary system in aqueous solutions. In single–metal system, the adsorption process of Cd2+, Cu2+and Ni2+on E–CMBC fitted well with the Avrami fractional–order kinetics model and the Langmuir isotherm model. The measured maximum adsorption capacities were 61.08 mg g−1, 48.36 mg g−1and 41.17 mg g−1for Cd2+, Cu2+and Ni2+, respectively. In binary–metal system, coexisting ions have obvious competitive adsorption behaviour on E–CMBC when the concentration of heavy meal beyond 20 mg L−1. The maximum adsorption capacities of the heavy metals were found to be lower than that in single–metal system. The order of the competitive adsorption ability was Cu2+> Ni2+> Cd2+. Interestingly, in Cd2+–Cu2+system the earlier adsorbed Cd2+could be completely replaced by Cu2+from the solution. Different competitive adsorption ability of those heavy metal were due to the characteristics of heavy metal and resultant affinity of the adsorption sites on E–CMBC. The adsorption mechanism indicated that chemical adsorption played a dominating role. Therefore, E–CMBC could be a potential adsorbent for wastewater treatment.Keywords:modified biochar;heavy metals;competitive adsorption;mechanisms
研究领域:
环境科学
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化学
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DOI
高影响因子
Current Analytical Chemistry
·
2017
·Vol. 13
·期 3
·250-255
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IF 1.306
Luan Feng,Lu Yuxi,Tang Lili,Liu Huitao
Background: The safety and level of heavy metal ions in the traditional Chinese medicine has become an important topic. Most of the metal ions are carcinogens and lead to serious health concerns by producing free radicals. It is of great significance to develop simple and effective
methods to determine heavy metal ions. The aim of this paper is to develop a CE-indirect UV method for the analysis of the four heavy metal ions for Chinese medicine Shuanghuanglian oral liquid. Methods: The alternative CE method for separation and test of metal ions was developed in
this paper, which can help control the safety and level of heavy metal ions in traditional Chinese medicine Shuanghuanglian oral liquid. And the developed HPCE method showed superior analytical performance, including high sensitivity and good selectivity. Results: The experimental conditions
of the CE separation method were: 5s hydrodynamic injection at 0.5 psi, 20 kV applied voltage, and UV detection at 218 nm. The results show that the migration time of all the four heavy metal ions was less than 6 min. The calibration curves for four heavy metal ions were linear in the range
of 0.5-35 μg mL-1 with linear correlation coefficients of 0.9984-0.9999. The limits of detection were in the range of 0.08-0.61 μg mL-1 along with the recoveries of 93.0% to 109.5%. Conclusion: A simple, rapid and sensitive HPCE method has been developed to separate four heavy metal
ions including Cd2+, Cr3+, Cu2+ and Zn2+ in traditional Chinese medicine Shuanghuanglian oral liquid. The comprehensive analysis performance is satisfactory. The proposed HPCE method provides shorter analysis time and lower detection limit. The results demonstrated that the developed CE method
can be potentially applied as an good alternative for quality control of TCM.
研究领域:
中药分析
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药物安全
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DOI
高影响因子
Journal of Water Process Engineering
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2026
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IF 6.6
Runhui Gao,Yanhui Dong,Mohamed R. El-Naggar,Yihao Wu,Xiaowei Jiang
Efficient removal of multiple heavy metals (HMs) from industrial wastewater remains challenging due to the coexistence and competition of ions. This study comparatively evaluates metakaolin-based (MK-GP) and fly ash-based (FA-GP) geopolymers synthesized at a constant Si-modulus (1.4), aiming to clarify their sorption performance and competitive mechanisms toward Pb 2+ , Zn 2+ , Cd 2+ , and Ni 2+ . Comprehensive characterization revealed that MK-GP sorbents developed a more reactive aluminosilicate framework and a four-fold larger surface area than FA-GP sorbents, enabling markedly higher sorption capacities. Batch experiments across mono-, binary-, ternary-, and quaternary-metal systems demonstrated a consistent affinity sequence of Pb 2+ > Zn 2+ > Cd 2+ > Ni 2+ , with pronounced competitive suppression in multi-ion environments. Column transport experiments further confirmed the preferential retention of Pb 2+ and the accelerated breakthrough of Zn 2+ , Cd 2+ , and Ni 2+ under flow conditions. Mechanistic analysis indicated that sorption is governed by synergistic surface complexation and pore-controlled diffusion, influenced by hydrated ionic radii and hydrolysis behavior. Overall, this work provides a systematic comparison of two widely used GP sorbents and offers mechanistic insights that can inform the rational design of GP-based technologies for complex industrial wastewater treatment.
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9
Yan Zhao,Jun Yao,Ning Min,Bo Ma,Wenping Chai,Yvqing Ma
Acid mine drainage (AMD) originates from mineral extraction and processing operations, exhibiting high acidity and containing elevated concentrations of metals and sulphates, which frequently pose significant environmental challenges. This study combined biochar with clay minerals to prepare two magnetic biochar-montmorillonite composites (FMBC1 and FMBC2) via coprecipitation-pyrolysis and impregnation-pyrolysis methods for investigating their removal efficiency and mechanisms for Cu, Pb, and Cd from metal solutions. Adsorption results indicate that at a dosage of 1.5 g/L, both FMBC1 and FMBC2 achieve removal efficiencies exceeding 99% for Cu (100 ppm), Pb, and Cd (50 ppm). Material characterization revealed that functional group complexation, crystallization-precipitation, possible ion exchange and reduction precipitation were the mechanisms by which FMBC1 and FMBC2 interact with Cu, Pb, and Cd in solution. Furthermore, FMBC1 and FMBC2 effectively removed Cu, Pb, and Cd from synthetic wastewater and could be recovered rapidly via magnetic attraction. Following desorption with EDTA-HCl, adsorbed FMBC1 and FMBC2 can be reused. The findings of this study provide potential theoretical foundation for treating heavy metals in AMD.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Chao Wu,Zhen Wang,Jiawu Cui,Qi Ling,Xianwei Wang,Zexun Tang,Chengyong Shu,Kang Yang,Yuping Wu,Wei Tang
Halide solid-state electrolytes (SSEs) have emerged as a compelling research focus for advanced all-solid-state lithium-ion batteries (ASSLBs), driven by their concurrent possession of exceptional oxidation stability and remarkable mechanical deformability. While Li2ZrCl6 (LZC) has attracted significant attention for its cost-effectiveness and material abundance, its practical application remains a major challenge due to lower ionic conductivity. Herein, we reported a series of Cd2+-doped lithium-rich superionic conductors Li2+2xZr1–xCdxCl6 (0 ≤ x ≤ 0.2), which collectively adopted a Li3YCl6-like trigonal structure. The incorporation of Cd2+ ions, which possess a lower charge and larger ionic radius, enhanced carrier concentration and caused anisotropic lattice expansion. Specifically, Li2.1Zr0.95Cd0.05Cl6 (LZC-5Cd) exhibited the highest ionic conductivity (9.8 × 10–4 S cm–1) at 30 °C while simultaneously broadening the electrochemical window to 4.11 V. The ASSLBs configuration featuring the LiCoO2 cathode, LZC-5Cd electrolyte, and Li–In anode demonstrated superior reversible capacity (161.4 mAh g–1 at 0.1 C) within the wide potential range of 2.5–4.3 V and remarkable cycling stability (80.69% capacity retention over 250 cycles at 2 C). In this regard, this work presented a cost-effective structural engineering strategy that simultaneously boosted ionic conductivity and broadened the working potential range to provide a potential model for the large-scale application of halide-based ASSLBs.
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DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2026
·
IF 5.2
Silong Qiang,Mei Chen,Qin Zhou,Shikun Li,Jianjun Liao,Shiwei Lin
Hydroxyl-rich surface (BiO)₂OHCl/MWCNT enhances heavy metals accumulation via coordination. • Anion modulation (OH − /Cl − ) optimizes internal electronics for faster charge transfer. • Conductive MWCNT network further accelerates interfacial electron transfer. • LODs of 0.23 μg/L Pb 2+ and 0.41 μg/L Cd 2+ with 96–104% recovery in seawater samples. The escalating contamination of aquatic ecosystems by toxic heavy metal ions Cd 2+ and Pb 2+ necessitates reliable monitoring solutions. Herein, a glassy carbon electrode modified with a hydroxylated bismuth oxychloride/multi-walled carbon nanotube ((BiO)₂OHCl/MWCNT) nanocomposite is presented for the simultaneous detection of Cd 2+ and Pb 2+ . The material was synthesized via a one-step alkaline hydrothermal assembly, which ensures the uniform dispersion of MWCNTs to establish a conductive network for electron transport. The hydroxyl-induced anion-layer modulation optimizes the internal electronic environment to accelerate interfacial charge transfer. Concurrently, surface hydroxyl groups provide specific coordination interactions, improving the adsorption affinity and accumulation efficiency of the target metal ions. Under optimized conditions in sodium acetate-acetic acid buffer (pH 5.0), the sensor exhibits linear detection ranges of 10–300 μg/L for both Cd 2+ and Pb 2+ , with limits of detection (LOD) of 0.226 μg/L and 0.412 μg/L (S/N = 3), respectively. The proposed sensor exhibits good repeatability, reproducibility, and anti-interference capability, and was successfully applied to the analysis of spiked seawater samples. Download: Download high-res image (189KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
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2025
·
IF 3.9
Tallat Munir,Ming Liu,Shiyang Bai,Jihong Sun
The effective removal of multiple metal ions from aqueous solutions in a single-treatment process was explored using modified natural clinoptilolite (NCP). Batch adsorption experiments were conducted to evaluate the impact of critical factors, such as adsorbent dosage, contact time, adsorbate concentration, pH, and temperature, on the removal efficiency. The modified NCP achieved maximum adsorption capacities of 81.4, 78.4, 75.2, 72.2, and 68.8 mg·g −1 for Cd 2+ , Fe 3+ , Ni 2+ , Mn 2+ , and Sr 2+ , with removal efficiencies of 95.0 %, 90.1 %, 90.0 %, 86.5 %, and 82.5 %, respectively, at pH 3.0 and 25 °C for Fe 3+ , and pH 7.5 and 85 °C for the others. Adsorption kinetics followed the pseudo-second-order model while intra-particle diffusion, analyzed via the Weber-Morris model indicated that pore diffusion was a dominant mechanism, particularly for Fe³⁺. The Langmuir isotherm provided the best fit to the equilibrium data. Thermodynamic analysis confirmed the viability of the adsorption process, with Fe 3+ exhibiting exothermic adsorption, while the uptake of Mn 2+ , Ni 2+ , Cd 2+ , and Sr 2+ was endothermic. Negative entropy changes indicated enhanced ordering of adsorbed metal ions via strong electrostatic interactions. The modified NCPs demonstrated excellent regeneration capability and stability under acidic, basic, and thermal conditions. These findings provide valuable insights for designing effective multi-ion adsorption systems with enhanced performance and reliability.
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高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2025
·
IF 8.4
Yingjie Yin,Ran Yin,Prabhakar Sharma,Jianying Shang
The transport of biochar colloids (BCs) is a cross-media (water-soil-air) and cross-scale environmental process related to pollution diffusion, carbon cycling, and climate change. It requires multidisciplinary collaborative research to quantify its risks and formulate control strategies. In this study, column experiments compared the transport of BCs made from five feedstocks—Miscanthus Straw Pellets (MSP), Oil Seed Rape Pellets (OSR), Wheat Straw Pellets (WSP), Soft Wood Pellets (SWP), and Sewage Sludge Pellets (SS)—with/without cadmium (Cd 2+ ). Published data were also used to create machine learning models predicting BC transport. At 1 mM ionic strength (IS), BC mobility decreased in the order: MSP (70.0 %) > OSR (65.2 %) > SWP (61.8 %) > WSP (58.5 %) > SS (51.2 %), correlating with zeta ( ζ ) potential ( R 2 = 0.98, P < 0.001). Mobility dropped to between 22.0 % and 32.0 % when IS was increased to 5 mM and decreasing further with Cd 2+ addition (4.0 %–10.2 %). Random forest and linear regression analyses confirmed that the ζ potential, rather than the other feedstock-influenced properties, was the primary factor governing BCs transport under all tested conditions. The developed machine learning model, based ζ potential, demonstrated strong accuracy ( R 2 = 0.880, RMSE = 0.378) in predicting BCs mobility. These findings provide a valuable framework for predicting BCs mobility, enabling more effective biochar application in pollution remediation while minimizing secondary contamination risks.
研究领域:
环境科学
·
土壤化学
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胶体与界面化学
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污染生态学
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碳循环
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环境修复
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）