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Kumari K, Kumar V, Nayaka S, Saxena G, Sanyal I. Physiological alterations and heavy metal accumulation in the transplanted lichen Pyxine cocoes (Sw.) Nyl. in Lucknow city, Uttar Pradesh. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 196:84. [PMID: 38147167 DOI: 10.1007/s10661-023-12256-9] [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: 09/30/2023] [Accepted: 12/14/2023] [Indexed: 12/27/2023]
Abstract
Air pollution has become a major concern due to its detrimental effects on living beings. The present study is aimed at assessing the current status of air pollution in Lucknow city using lichen transplantation technique and assesing its effect on physiology of Pyxine cocoes. The samples of P. cocoes were collected from relatively pollution-free area Malihabad and transplanted in 10 designated sites in five regions for 30 days. Various parameters such as heavy metals, chlorophyll pigments, carotenoid, chlorophyll degradation, and electrolyte conductivity were estimated in transplanted lichens. The study revealed that the concentration of all 10 heavy metals was higher in all transplanted samples than in the control sample, which was found in order of Al > Fe > Mn > Zn > Cu > Cr > Pb > Ni > Co > Cd. Among all 10 transplanted sites, the significantly increased accumulation of aluminum (5.11 to 5.47 µg L-1), iron (4.73 to 5.46 µg L-1), manganese (110.99 to 144.58 µg g-1), and zinc (87.96 to 97.40 µg g-1) was found in Charbagh, Qaisarbagh, and Alambagh sites. Further, in all samples, chlorophyll a (3.98 µg L-1), chlorophyll b (1.22 µg L-1), total chlorophyll (5.20 µg L-1), and chlorophyll degradation (0.55 µg g-1) were significantly decreased, whereas elevated levels of carotenoid (0.71 µg g-1), and electrolyte conductivity (64.99 µS cm-1), were observed. The scanning electron microscope (SEM) investigated the morphological changes in transplanted lichen samples, and significant damage to the anatomy of mycelium was found in most of the polluted site's samples, which correlated with the pollution levels. The present study clearly demonstrated that the transplanted lichen P. cocoes is an efficient bioaccumulator and bioindicator of air quality in urban environments.
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Affiliation(s)
- Kirti Kumari
- Department of Botany, Lucknow University, Lucknow, 226007, Uttar Pradesh, India
- CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Varun Kumar
- CSIR-National Botanical Research Institute, Lucknow, 226001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sanjeeva Nayaka
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
- Lichenology Laboratory, CSIR-National Botanical Research Institute, Lucknow, India.
| | - Gauri Saxena
- Department of Botany, Lucknow University, Lucknow, 226007, Uttar Pradesh, India
| | - Indraneel Sanyal
- CSIR-National Botanical Research Institute, Lucknow, 226001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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2
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Lei D, Li S, Gao L, Hu M, Chai N, Fan J. Preparation of sulfur self-doped coal-based adsorbent and its adsorption performance for Cu 2. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:115543-115555. [PMID: 37884718 DOI: 10.1007/s11356-023-30529-1] [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: 07/31/2023] [Accepted: 10/13/2023] [Indexed: 10/28/2023]
Abstract
The limited application of high-sulfur coal (HSC) and the increasing severity of copper pollution in solution are two pressing issues. To alleviate such issues, a sulfur self-doped coal-based adsorbent (HSC@ZnCl2) was obtained by pyrolysis (850 °C, 60 min holding time) of HSC and ZnCl2 with a mass ratio of 1:0.5. The results adsorption experiment revealed that the endothermic and spontaneous adsorption process was consistent with the Sips isothermal model (R2 = 0.992) and pseudo-second-order kinetic (R2 = 0.994), and that the adsorption process with a maximum adsorption capacity of 11.97 mg/g. Meanwhile, the adsorption of Cu2+ onto HSC@ZnCl2 was a result of the synergistic effects of various interactions, such as the complexation by oxygen-containing functional groups, electrostatic attraction and surface precipitation by ZnS on the adsorbent surface, and the process also included redox reaction. The findings of this work indicate that the preparation of sulfur self-doped coal-based adsorbent prepared from high-sulfur coal is a promising method for its large-scale utilization.
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Affiliation(s)
- Dengke Lei
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, 22116, China
| | - Shulei Li
- National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology, Xuzhou, 22116, China.
| | - Lihui Gao
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 22116, China
| | - Ming Hu
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 22116, China
| | - Na Chai
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, 22116, China
| | - Jundi Fan
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, 22116, China
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3
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Application of the in-situ biological detoxification polymer for the improvement of AFB1 detoxification. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Meng Q, He Q, Liu J, Cao Y, Yuan D, Teng Q. Polyethyleneimine‐condensed
polystyrene resin: A specific adsorbent for Cu
2+
over Ni
2+. J Appl Polym Sci 2022. [DOI: 10.1002/app.52317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qi Meng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering Changzhou University Changzhou China
| | - Qiang He
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering Changzhou University Changzhou China
| | - Jiang Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering Changzhou University Changzhou China
| | - Yiwen Cao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering Changzhou University Changzhou China
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou China
| | - Qiaoqiao Teng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering Changzhou University Changzhou China
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Jin Y, Zhang M, Jin Z, Wang G, Li R, Zhang X, Liu X, Qu J, Wang H. Characterization of biochars derived from various spent mushroom substrates and evaluation of their adsorption performance of Cu(II) ions from aqueous solution. ENVIRONMENTAL RESEARCH 2021; 196:110323. [PMID: 33098819 DOI: 10.1016/j.envres.2020.110323] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 10/08/2020] [Accepted: 10/11/2020] [Indexed: 05/22/2023]
Abstract
A total of 16 biochar adsorbents were produced from four types of spent mushroom substrates to investigate the effect of pyrolysis temperature and raw material composition on the Cu(II) adsorption performance of the resulting biochars. It was determined that the pyrolysis temperature and substrate composition markedly influenced the thermal stability, the degree of carbonization, surface functional group content, and structural morphology of the biochars, but did not affect the adsorption isotherms or kinetics. Optimal results were obtained with an initial pH of 5, adsorbent dosage of 1 g/L, Cu(II) concentration of 50 mg/L, and temperature of 25 °C. The four best-performing biochars conformed to the Langmuir isotherm model and followed pseudo-second-order kinetics with maximum Cu(II) adsorption between 52.6 and 65.6 mg/g. Precipitation was the dominant mechanism for Cu(II) adsorption onto Lentinus edodes spent substrate-derived biochar pyrolyzed at 600 °C (LESS600), whereas complexation with surface functional groups was the prominent mechanism of Cu(II) removal by Auricularia auricula spent substrate-derived biochar pyrolyzed at 500 °C (AASS500). The Flammulina velutipes and Pleurotus ostreatus spent substrate-derived biochars pyrolyzed at 600 °C (FVSS600 and POSS600, respectively) removed Cu(II) ions using both precipitation and Cu2+-π complexation interactions. The findings indicate that biochar derived from spent mushroom substrates containing abundant lignin and pyrolyzed at high temperatures (500 or 600 °C) demonstrate effective Cu(II) removal because of the various physico-chemical properties discussed herein.
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Affiliation(s)
- Yu Jin
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Meng Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Zonghui Jin
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Guoliang Wang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Rui Li
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xu Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xuesheng Liu
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Juanjuan Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China.
| | - Hongmei Wang
- College of Life Science, Shandong Normal University, Jinan, 250014, China
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Removal of Cu(II) from Aqueous Solutions Using Amine-Doped Polyacrylonitrile Fibers. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10051738] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polyacrylonitrile (PAN) fibers were prepared via electrospinning and were modified with diethylenetriamine (DETA) to fabricate surface-modified PAN fibers. The surface-modified PAN fibers were used to evaluate their adsorption capacity for the removal of Cu(II) from aqueous solutions. Batch adsorption experiments were performed to examine the effects of the modification process, initial concentration, initial pH, and adsorbent dose on the adsorption of Cu(II). Kinetic analysis revealed that the experimental data fitted the pseudo-second-order kinetic model better than the pseudo-first-order model. Adsorption equilibrium studies were conducted using the Freundlich and Langmuir isotherm models, and the findings indicated that the PAN fibers modified with 85% DETA presented the highest adsorption capacity for Cu(II) of all analyzed samples. Moreover, the results revealed that the Freundlich model was more appropriate than the Langmuir one for describing the adsorption of Cu(II) onto the modified fibers at various initial Cu(II) concentrations. The maximum adsorption capacity was determined to be 87.77 mg/g at pH 4, and the percent removal of Cu(II) increased as the amount of adsorbent increased. Furthermore, the surface-modified PAN fibers could be easily regenerated using NaOH solution. Therefore, surface-modified PAN fibers could be used as adsorbents for the removal of Cu(II) from aqueous solutions.
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