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Chu J, Xin S, He Y, Gao X, Zhou X, Zhang Y, Liu X, Zhang X, Wang S. Enhanced Adsorption of Hexavalent Chromium from Aqueous Solutions by Iron- manganese Modified Cedarwood Biochar: Synthesis, Performance, Mechanism, and Variables. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 111:43. [PMID: 37715810 DOI: 10.1007/s00128-023-03802-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 08/29/2023] [Indexed: 09/18/2023]
Abstract
Three modified biochar (Cunninghamia lanceolata) with iron and manganese elementals (FMBCs) were successfully prepared and used to remove hexavalent chromium (Cr(VI)) from aqueous solutions. The biochar before and after decoration were characterized by advanced instruments. The adsorption capacities of modified biochar in different Cr(VI) (20 mg·L- 1, 1 mg·L- 1) solutions were 4868.28 mg·kg- 1 and 300 mg·kg- 1. The Cr(VI) removal was highest at pH 2. The possible adsorption was considered to be ion exchange adsorption, chemisorption, and electrostatic attraction. Meanwhile, interfering ions are conducive to increasing the adsorption content. FMBCs prepared at different temperatures showed different characteristics, single-use and cycle-use performance, and high and low concentration removal superiority. The result indicated that FMBCs had a promising potential as an adsorbent to remove toxic and harmful Cr(VI) from aqueous solutions.
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Affiliation(s)
- Jizhuang Chu
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Shuhan Xin
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Yihang He
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Xin Gao
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Xin Zhou
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Yingqi Zhang
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Xinxin Liu
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Xinru Zhang
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Shiliang Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, China.
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Sugo Y, Ohira SI, Manabe H, Maruyama YH, Yamazaki N, Miyachi R, Toda K, Ishioka NS, Mori M. Highly Efficient Separation of Ultratrace Radioactive Copper Using a Flow Electrolysis Cell. ACS OMEGA 2022; 7:15779-15785. [PMID: 35571765 PMCID: PMC9096931 DOI: 10.1021/acsomega.2c00828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/15/2022] [Indexed: 06/15/2023]
Abstract
Preparing compounds containing the radioisotope 64Cu for use in positron emission tomography cancer diagnostics is an ongoing area of research. In this study, a highly efficient separation method to recover 64Cu generated by irradiating the target 64Ni with a proton beam was developed by employing a flow electrolysis cell (FE). This system consists of (1) applying a reduction potential for the selective adsorption of 64Cu from the target solution when dissolved in HCl and (2) recovering the 64Cu deposited onto the carbon working electrode by desorbing it from the FE during elution with 10 mmol/L HNO3, which applies an oxidation potential. The 64Cu was selectively eluted at approximately 30 min under a flow rate of 0.5 mL/min from the injection to recovery. The newly developed flow electrolysis system can separate the femtomolar level of ultratrace radioisotopes from the larger amount of target metals as an alternative to conventional column chromatography.
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Affiliation(s)
- Yumi Sugo
- Department
of Radiation-Applied Biology Research, Takasaki Advanced Radiation
Research Institute, National Institutes
for Quantum Science and Technology, 1233 Watanuki, Takasaki, Gunma 370-1292, Japan
| | - Shin-Ichi Ohira
- Department
of Chemistry, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Hinako Manabe
- Faculty
of Science and Technology, Kochi University, 2-5-1 Akebono-cho, Kochi 780-8520, Japan
| | - Yo-hei Maruyama
- Faculty
of Science and Technology, Kochi University, 2-5-1 Akebono-cho, Kochi 780-8520, Japan
| | - Naoaki Yamazaki
- Graduate
School of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Ryoma Miyachi
- Department
of Chemistry, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Kei Toda
- Department
of Chemistry, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Noriko S. Ishioka
- Department
of Radiation-Applied Biology Research, Takasaki Advanced Radiation
Research Institute, National Institutes
for Quantum Science and Technology, 1233 Watanuki, Takasaki, Gunma 370-1292, Japan
| | - Masanobu Mori
- Faculty
of Science and Technology, Kochi University, 2-5-1 Akebono-cho, Kochi 780-8520, Japan
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Ling J, Wei G, Li J. A highly sensitive and selective molecularly imprinted sensor for direct determination of ultra‐trace Cr(III) in environmental samples. ChemistrySelect 2022. [DOI: 10.1002/slct.202104521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jun Ling
- College of Environmental Science and Engineering Guilin University of Technology Guilin 541004 China
| | - Ge Wei
- GRG Metrology & Test (Nanning) Co., Ltd. Nanning 530000 China
| | - Jianping Li
- College of Environmental Science and Engineering Guilin University of Technology Guilin 541004 China
- College of Chemistry and Bioengineering Guilin University of Technology Guilin 541004 China
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Wang X, Wang Y, Wang S, Hou J, Cai L, Fan G. Indirect Competitive ELISA for the Determination of Total Chromium Content in Food, Feed and Environmental Samples. Molecules 2022; 27:1585. [PMID: 35268684 PMCID: PMC8911876 DOI: 10.3390/molecules27051585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
Background: This study aimed to prepare monoclonal antibodies (mAbs) with high immunoreactivity, sensitivity, and specificity for the chelate (Cr(III)-EDTA) of trivalent chromium ion (Cr(III)) and ethylenediamine tetraacetic acid (EDTA). Further, the study established an indirect competitive enzyme-linked immunosorbent assay (icELISA) for detecting the total chromium content in food, feed, and environmental samples. Methods: Hapten Cr(III)-iEDTA was synthesized by chelating Cr(III) with isothiocyanatebenzyl-EDTA (iEDTA). Immunogen Cr(III)-iEDTA-BSA formed by chelating Cr(III)-iEDTA with bovine serum albumin (BSA), and coating antigen Cr(III)-iEDTA-OVA formed by chelating Cr(III)-iEDTA with ovalbumin (OVA) were prepared using the isothiocyanate method and identified by ultraviolet spectra (UV) and inductively coupled plasma optical emission spectrometry (ICP-OES). Balb/c mice were immunized with the Cr(III)-iEDTA-BSA, and the anti Cr(III)-EDTA mAb cell lines were screened by cell fusion. The Cr(III)-EDTA mAbs were prepared by induced ascites in vivo, and their immunological characteristics were assessed. Results: The immunogen Cr(III)-iEDTA-BSA was successfully synthesized, and the molecular binding ratio of Cr(III) to BSA was 15.48:1. Three hybridoma cell lines 2A3, 2A11, and 3D9 were screened, among which 2A3 was the best cell line. The 2A3 secreted antibody was stable after six passages, the affinity constant (Ka) was 2.69 × 109 L/mol, its 50% inhibition concentration (IC50) of Cr(III)-EDTA was 8.64 μg/L, and it had no cross-reactivity (CR%) with other heavy metal ion chelates except for a slight CR with Fe(III)-EDTA (1.12%). An icELISA detection method for Cr(III)-EDTA was established, with a limit of detection (LOD) of 1.0 μg/L and a working range of 1.13 to 66.30 μg/L. The average spiked recovery intra-assay rates were 90% to 109.5%, while the average recovery inter-assay rates were 90.4% to 97.2%. The intra-and inter-assay coefficient of variations (CVs) were 11.5% to 12.6% and 11.1% to 12.7%, respectively. The preliminary application of the icELISA and the comparison with ICP-OES showed that the coincidence rate of the two methods was 100%, and the correlation coefficient was 0.987. Conclusions: The study successfully established an icELISA method that meets the requirements for detecting the Cr(III)-EDTA chelate content in food, feed, and environmental samples, based on Cr(III)-EDTA mAb, and carried out its preliminary practical application.
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Affiliation(s)
- Xiaofei Wang
- Xinxiang Institute of Engineering, College of Bioengineering, Xinxiang 453700, China; (X.W.); (S.W.)
| | - Yanan Wang
- Henan Institute of Science and Technology, College of Animal Science and Veterinary Medicine, Xinxiang 453003, China; (Y.W.); (J.H.); (L.C.)
| | - Shuyun Wang
- Xinxiang Institute of Engineering, College of Bioengineering, Xinxiang 453700, China; (X.W.); (S.W.)
| | - Jie Hou
- Henan Institute of Science and Technology, College of Animal Science and Veterinary Medicine, Xinxiang 453003, China; (Y.W.); (J.H.); (L.C.)
| | - Linlin Cai
- Henan Institute of Science and Technology, College of Animal Science and Veterinary Medicine, Xinxiang 453003, China; (Y.W.); (J.H.); (L.C.)
| | - Guoying Fan
- Henan Institute of Science and Technology, College of Animal Science and Veterinary Medicine, Xinxiang 453003, China; (Y.W.); (J.H.); (L.C.)
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Taira M, Sakakibara K, Saeki K, Ohira SI, Toda K. Determination of oxoanions and water-soluble species of arsenic, selenium, antimony, vanadium, and chromium eluted in water from airborne fine particles (PM 2.5): effect of acid and transition metal content of particles on heavy metal elution. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:1514-1524. [PMID: 32555872 DOI: 10.1039/d0em00135j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Heavy metals in particulate matter (PM) are of great concern, and their effects on the environment and human health depend on their solubilities and species present. In this study, the solubility of As, Se, Sb, V and Cr and their species eluted in water was investigated. As, Se, Sb, and V were present mostly in fine particles, and they were predominantly water-soluble in fine particles (<2.5 μm, PM2.5) but insoluble in coarse particles (>2.5 μm). Solubility of Cr was poor even in fine particles. It was found that for fine particles, solubilities of the heavy metals were related to the nitrate and sulfate contents. This suggests that the higher the acidity of the particles, the higher the solubility of the heavy metals. Oxoanions of the five kinds of heavy metals in water extracts of fine particles were determined by inductively coupled plasma mass spectrometry preceded by ion chromatography. The results suggested the presence of atmospheric oxidation during the aerosol transportation. Also, the As(iii)/As(v) (arsenite/arsenate) ratios for the fine particle extracts were related to the transition metal concentrations, which indicated that Fe, Cu, etc. in fine particles affected the As redox equilibrium. It was suggested that the heavy metals exist as complexes with iron hydroxide and dissolved organic matter in addition to the free oxoanions. These investigations were performed for PM samples collected in winter and summer in Kumamoto, west Japan, where the site is strongly exposed to westerly winds from continental East Asia. The obtained results improve our understanding of the behavior of the heavy metals in airborne PM after depositing on a wet environment and biota.
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Affiliation(s)
- Misaki Taira
- Department of Chemistry, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan.
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