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Wang Y, Wang Y, Wang X, Chang M, Zhang G, Mao X, Li Y, Wang J, Wang L. Efficient activation of peroxodisulfate by novel bionic iron-encapsulated biochar: The key roles of electron transfer pathway and reactive oxygen species evolution. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130204. [PMID: 36308934 DOI: 10.1016/j.jhazmat.2022.130204] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/06/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
In this study, a novel iron-encapsulated biochar (Fe@BC) was prepared using the biomass cultivated with an iron-containing solution. The iron in Fe@BC showed the phase change from Fe3O4 to α-Fe, and to CFe15.1, with the increase of pyrolysis temperature (500-900 °C), and a graphene shell formed on the surface of Fe@BC. In addition, the signals assigned to the π-π* shake up, pyridinic N, graphitic N, and defects of Fe@BC were found to be stronger as the pyrolysis temperature increased. The F4@B9 sample, which was prepared at 900 °C, exhibited an excellent performance (98.01 %) to activate peroxydisulfate (PDS) for the degradation of 2,4-dichlorophenol. Electron paramagnetic resonanceand chemical quenching experiments revealed that reactive oxygen radicals (ROS) including sulfate radical (•SO4-), hydroxyl radical (•OH), superoxide radical (•O2-), and singlet oxygen (1O2) existed in the F4@B9/PDS system. Furthermore, the micro-electrolysis process facilitated the generation of •O2- (12.35 %) and 1O2 (6.49 %) compared with the pure PDS system. Density functional theory revealed that, for the F4@B9-activated PDS process, the graphene shell of F4@B9 served as catalytic active sites as well. According to the correlation analysis, the iron specie of CFe15.1 was more favorable for the generation of ROS than α-Fe. Also, π-π* shake up, pyridinic N, graphitic N, and defects participated in the PDS activation. This study provides a new method for the preparation of high-performance catalysts from naturally grown biomass with high iron contents.
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Affiliation(s)
- Yangyang Wang
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, PR China; School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, PR China
| | - Ying Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Xiaoshu Wang
- School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, PR China; The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR China
| | - Ming Chang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Gen Zhang
- School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, PR China
| | - Xuhui Mao
- School of Resources and Environmental Science, Wuhan University, Wuhan 430079, PR China
| | - Ye Li
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Jinsheng Wang
- School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, PR China
| | - Lei Wang
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, PR China; School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, PR China; The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, PR China.
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Moharramzadeh M, Ceylan Z, Atıcı Ö. Glutathione S-Transferase Activity in Wild Plants with 2,4-Dichlorophenol (2,4-DCP) Phytoremediation Potential. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2064484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Mohammad Moharramzadeh
- Department of Environmental Engineering, Faculty of Engineering, Atatürk University, Erzurum, Turkey
| | - Zeynep Ceylan
- Department of Environmental Engineering, Faculty of Engineering, Atatürk University, Erzurum, Turkey
| | - Ökkeş Atıcı
- Department of Biology, Science Faculty, Atatürk University, Erzurum, Turkey
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Hossain SMG, McLaughlan RG. Non-equilibrium 2, 4-DCP uptake onto pine chips from aqueous solutions. ENVIRONMENTAL TECHNOLOGY 2021; 42:4057-4063. [PMID: 32181707 DOI: 10.1080/09593330.2020.1744738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 03/12/2020] [Indexed: 06/10/2023]
Abstract
Wide application of 2, 4-dichlorophenol (2, 4-DCP) in industry has resulted in environmental contamination of soils and groundwater. Approaches to cost-effectively remove 2, 4-DCP from water need to be found. 2, 4-DCP uptake onto pine chips from aqueous solution were evaluated in column studies under different particle sizes and flow conditions. The breakthrough curves (BTCs) showed evidence of non-equilibrium with early breakthroughs. The uptake capacity increased from 3.0-6.0 mg g-1 with decreasing flow rate from 10 to 5 mL min-1 but did not show significant differences for particle sizes 1.18 and 4.75 mm at the same flow rate. The BTC for all cases could not be adequately fitted using an equilibrium model with batch derived sorption parameters. They could be better fitted by two site non-equilibrium model using parameters derived from both batch and inverse modelling. At a higher flow rate, the fraction of instantaneous sorption decreased suggesting a higher degree of non-equilibrium. Non-equilibrium processes need to be considered in the design of these types of treatment and operational systems.
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Affiliation(s)
- S M G Hossain
- Faculty of Engineering and Information Technology, University of Technology Sydney (UTS), Sydney, Australia
| | - R G McLaughlan
- Faculty of Engineering and Information Technology, University of Technology Sydney (UTS), Sydney, Australia
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4
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Yang B, Wei S, Tang K, Zhai X. Study on the Degradation Performance of 2,4-DCP by Modified Co–Ni–Fe Hydrotalcite. Catal Letters 2021. [DOI: 10.1007/s10562-021-03615-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Bretz RR, de Castro AA, Lara Ferreira IF, Ramalho TC, Silva MC. Experimental and theoretical affinity and catalysis studies between halogenated phenols and peroxidases: Understanding the bioremediation potential. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110895. [PMID: 32615496 DOI: 10.1016/j.ecoenv.2020.110895] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 06/08/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Halogenated phenols, such as 2,4-dichlorophenol (2,4-DCP) and 4-bromophenol (4-BP) are pollutants generated by a various industrial sectors like chemical, dye, paper bleaching, pharmaceuticals or in an agriculture as pesticides. The use of Horseradish peroxidase (HRP) in the halogenated phenols treatment has already been mentioned, but it is not well understood how the different phenolic substrates can bind in the peroxidase active site nor how these specific interactions can influence in the bioremediation potential. In this work, different removal efficiencies were obtained for phenolic compounds investigated using HRP as catalyst (93.87 and 59.19% to 4BP and 2,4 DCP, respectively). Thus, to rationalize this result based on the interactions of phenols with active center of HRP, we combine computational and experimental methodologies. The theoretical approaches utilized include density functional theory (DFT) calculations, docking simulation and quantum mechanics/molecular mechanics (QM/MM) technique. Michaelis Menten constant (Km) obtained through experimental methodologies were 2.3 and 0.95 mM to 2,4-DCP and 4-BP, respectively, while the specificity constant (Kcat/Km) found was 1.44 mM-1 s-1 and 0.62 mM-1 s-1 for 4-BP and 2,4-DCP, respectively. The experimental parameters appointed to the highest affinity of HRP to 4-BP. According to the molecular docking calculations, both ligands have shown stabilizing intermolecular interaction energies within the HRP active site, however, the 4-BP showed more stabilizing interaction energy (-53.00 kcal mol-1) than 2,4-dichlorophenol (-49.23 kcal mol-1). Besides that, oxidative mechanism of 4-BP and 2,4-DCP was investigated by the hybrid QM/MM approach. This study showed that the lowest activation energy values for transition states investigated were obtained for 4-BP. Therefore, by theoretical approach, the compound 4-BP showed the more stabilizing interaction and activation energy values related to the interaction within the enzyme and the oxidative reaction mechanism, respectively, which corroborates with experimental parameters obtained. The combination between experimental and theoretical approaches was essential to understand how the degradation potential of the HRP enzyme depends on the interactions between substrate and the active center cavity of the enzyme.
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Affiliation(s)
- Raphael Resende Bretz
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil
| | | | - Igor F Lara Ferreira
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil
| | - Teodorico C Ramalho
- Department of Chemistry, Federal University of Lavras, Lavras, Brazil; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Maria Cristina Silva
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil.
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Jha P, Sen R, Jobby R, Sachar S, Bhatkalkar S, Desai N. Biotransformation of xenobiotics by hairy roots. PHYTOCHEMISTRY 2020; 176:112421. [PMID: 32505862 DOI: 10.1016/j.phytochem.2020.112421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 05/21/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
The exponential industrial growth we see today rides on the back of large scale production of chemicals, explosives and pharmaceutical products. However, the effluents getting released from their manufacturing units are greatly compromising the sustainability of our environment. With greater awareness of the imperative for environmental clean-up, a promising approach that is attracting increasing research interests is biodegradation of xenobiotics. In this approach, biotransformation has proven to be one of the most effective tools. While many different model frameworks have been used to study different aspects of biotransformation, hairy roots (HRs) have been found to be exceptionally valuable. HR cultures are preferred over other in-vitro model systems due to their biochemical stability and hormone-autotrophy. In addition, the multi-enzyme biosynthetic potential of HRs which is similar to the parent plant and their relatively low-cost cultural requirements further characterize their suitability for biotransformation. The recent progress observed in scale-up of HR cultures and understanding of functional genomics has opened up new dimensions providing valuable insights for industrial application. This review article summarizes the potential of HR cultures in the biotransformation of xenobiotics, their limitations in the application on a large scale and current strategies to alleviate them. Advancement in bioreactors engineering enabling large scale cultivation and modern gene technologies improving biotransformation efficiency promises to extend laboratory results to industrial applications.
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Affiliation(s)
- Pamela Jha
- Amity School of Biotechnology, Amity University Mumbai, Pune Expressway, Bhatan Post -Somathne, Panvel, Mumbai, Maharashtra, 410206, India.
| | - Rajdip Sen
- Amity School of Biotechnology, Amity University Mumbai, Pune Expressway, Bhatan Post -Somathne, Panvel, Mumbai, Maharashtra, 410206, India
| | - Renitta Jobby
- Amity School of Biotechnology, Amity University Mumbai, Pune Expressway, Bhatan Post -Somathne, Panvel, Mumbai, Maharashtra, 410206, India
| | - Shilpee Sachar
- Department of Chemistry, University of Mumbai, Mumbai, Maharashtra, 400098, India
| | - Shruti Bhatkalkar
- Department of Chemistry, University of Mumbai, Mumbai, Maharashtra, 400098, India
| | - Neetin Desai
- Sunandan Divatia School of Sciences, NMIMS, Mumbai, Maharashtra, 400056, India
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Jin Q, Chen Q, Kang J, Shen J, Guo F, Chen Z. Fabrication of iron-dipicolinamide catalyst with Fe-N bonds for enhancing non-radical reactive species under alkaline Fenton process. CHEMOSPHERE 2020; 241:125005. [PMID: 31605994 DOI: 10.1016/j.chemosphere.2019.125005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/13/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
Iron dipicolinamide (Fedpa), as an efficient Fenton-like catalyst, was fabricated to excite hydrogen peroxide (H2O2) for the removal of 2,4-dichlorophenol (2,4-DCP). The unique structures and the electronic properties of Fedpa were contributed to its excellent catalytic performance in alkaline Fenton process. Fe was chelated with dpa by four Fe-N bonds leaved two labile sites, which reduced the oxidation potential of dpa[FeIII/FeII], dpa[FeV/FeIII] or dpa[FeIV/FeII] to 0.316 V and 1.189 V respectively, and made it easily be bound with H2O2 to initiate the reaction. The results showed that 99.5% removal rate of 2,4-DCP (0.58 mM) was achieved by using 0.027 g/L Fedpa and 5.8 mM H2O2 in 60 min at pH 9.9. The coordination between Fe and dpa enhanced the catalytic efficiency of FeII. The active species generated in Fedpa/H2O2 system contained the iron-oxo species (dpaFeV = O or dpaIV = O), O2- and HO. The iron-oxo species was the main non-radical reactive species for the degradation of 2,4-DCP and some degradation intermediates were detected by GC-QTOF. Furthermore, the influence of factors, such as Fedpa loading, solution pH, temperature and anions (F-, Cl-, SO42-, NO3- and PO43-) on the catalytic performance of Fedpa were also discussed. This process of complexation between Fe and dpa combined with a green oxidant H2O2 presents a new insight for the use of Fenton-like system in the degradation of refractory organics.
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Affiliation(s)
- Qianqian Jin
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Qian Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China; School of Chemical Engineering, Southwest Forestry University, Kunming, 650224, China.
| | - Jing Kang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Jimin Shen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Fang Guo
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150080, China
| | - Zhonglin Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
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8
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A review on phenolic wastewater remediation using homogeneous and heterogeneous enzymatic processes: Current status and potential challenges. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.03.028] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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9
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Rodriguez-Hernandez MC, García De la-Cruz RF, Leyva E, Navarro-Tovar G. Typha latifolia as potential phytoremediator of 2,4-dichlorophenol: Analysis of tolerance, uptake and possible transformation processes. CHEMOSPHERE 2017; 173:190-198. [PMID: 28110008 DOI: 10.1016/j.chemosphere.2016.12.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/17/2016] [Accepted: 12/09/2016] [Indexed: 06/06/2023]
Abstract
2,4-Dichlorophenol (2,4-DCP) is considered a priority pollutant due to its high toxicity. Therefore, it is urgent to develop technologies for the disposal of this pollutant. Various remediation processes have been proposed for the elimination of 2,4-DCP in contaminated water, however, most of them involve high costs of operation and maintenance. This study aimed to determine the capacity of remediation of 2,4-DCP in water by Typha latifolia L. wild plants. For that, the tolerance, removal, accumulation and biotransformation of 2,4-DCP by T. latifolia were investigated. The plants were exposed to 2,4-DCP solutions with a concentration range from 1.5 to 300 mgL-1 for 10 days. They exhibited a reduction in chlorophyll levels and growth rate when 2,4-DCP solutions were ≥30 mgL-1 and ≥50 mgL-1, respectively. The removal of contaminant was dose-depended, being 99.7% at 1.5-3 mgL-1, 59-70% at 10-70 mgL-1 and 35-42% at 100-300 mgL-1 of 2,4-DCP in the solution. Studies indicated that 2,4-DCP was mainly accumulated in root tissue rather than in shoot tissue. Acid hydrolysis of biomass extracts suggests 2,4-DCP bioconjugates formation in root tissue as a response mechanism. Additionally, an increment in glutathione S-transferase (GST) activity could indicate a 2,4-DCP conjugation with glutathione as a detoxification mechanism of T. latifolia.
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Affiliation(s)
- M C Rodriguez-Hernandez
- Plant Biochemistry Laboratory, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6 Zona Universitaria, 78210, San Luis Potosí, Mexico
| | - R F García De la-Cruz
- Plant Biochemistry Laboratory, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6 Zona Universitaria, 78210, San Luis Potosí, Mexico.
| | - E Leyva
- Organic Synthesis Laboratory, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6 Zona Universitaria, 78210, San Luis Potosí, Mexico
| | - G Navarro-Tovar
- Recombinant Biopharmaceuticals Laboratory, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6 Zona Universitaria, 78210, San Luis Potosí, Mexico
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Du P, Zhao H, Li H, Zhang D, Huang CH, Deng M, Liu C, Cao H. Transformation, products, and pathways of chlorophenols via electro-enzymatic catalysis: How to control toxic intermediate products. CHEMOSPHERE 2016; 144:1674-1681. [PMID: 26519798 DOI: 10.1016/j.chemosphere.2015.10.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 10/09/2015] [Accepted: 10/10/2015] [Indexed: 06/05/2023]
Abstract
Chlorophenols can be easily oxidized into chlorobenzoquinones (CBQs), which are highly toxic and have been linked to bladder cancer risk. Herein, we report the transformation, products, and pathways of 2,4-dichlorophenol (DCP) by horseradish peroxidase (HRP) and electro-generated hydrogen peroxide (H2O2) and suggest methods to control the formation of toxic intermediate products. After a 10-min electroenzymatic process, 99.7% DCP removal may be achieved under optimal conditions. A total of 16 reaction products, most of which are subsequently verified as DCP polymers and related quinone derivatives, are identified by using ultra-performance liquid chromatography-time-of-flight mass spectrometry (UPLC-TOF-MS). A five-step reaction pathway for DCP transformation, including HRP-driven substrate oxidation, substitution and radical coupling, quick redox equilibrium, nucleophilic reaction and precipitation from aqueous solution, is proposed. Current variations and the presence of CO2 could significantly affect these reaction pathways. In particular, higher currents enhance the hydroxylation process by promoting alkaline conditions and abundant H2O2 formation. As both OH(-) and H2O2 are strong nucleophiles, they easily react with CBQ products to form hydroxylated products, which can significantly reduce solution toxicity. An adequate supply of CO2 can provide favorable pH conditions and facilitate enzymatic steps, such as substrate oxidation and radical coupling, to generate precipitable polymerized products. All of the results suggest that toxic intermediate products can be effectively reduced and controlled during the electro-enzymatic process to remove DCP and other phenolic pollutants from wastewaters.
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Affiliation(s)
- Penghui Du
- Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - He Zhao
- Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Haitao Li
- Environmental Protection Institute of Light Industry, Beijing Academy of Science and Technology, Beijing, 100089, China
| | - Di Zhang
- Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ching-Hua Huang
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, United States
| | - Manfeng Deng
- Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Chenming Liu
- Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Hongbin Cao
- Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
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11
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Yang J, Huang Y, Yang Y, Yuan H, Liu X. Cagelike mesoporous silica encapsulated with microcapsules for immobilized laccase and 2, 4-DCP degradation. J Environ Sci (China) 2015; 38:52-62. [PMID: 26702968 DOI: 10.1016/j.jes.2015.04.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/09/2015] [Accepted: 04/17/2015] [Indexed: 06/05/2023]
Abstract
In this study, cage-like mesoporous silica was used as the carrier to immobilize laccase by a physical approach, followed by encapsulating with chitosan/alginate microcapsule membranes to form microcapsules of immobilized laccase based on layer-by-layer technology. The relationship between laccase activity recovery/leakage rate and the coating thickness was simultaneously investigated. Because the microcapsule layers have a substantial network of pores, they act as semipermeable membranes, while the laccase immobilized inside the microcapsules acts as a processing plant for degradation of 2,4-dichlorophenol. The microcapsules of immobilized laccase were able to degrade 2,4-dichlorophenol within a wide range of 2,4-dichlorophenol concentration, temperature and pH, with mean degradation rate around 62%. Under the optimal conditions, the thermal stability and reusability of immobilized laccase were shown to be improved significantly, as the removal rate and degradation rate remained over 40.2% and 33.8% respectively after 6cycles of operation. Using mass spectrometry (MS) and nuclear magnetic resonance (NMR), diisobutyl phthalate and dibutyl phthalate were identified as the products of 2,4-dichlorophenol degradation by the microcapsules of immobilized laccase and laccase immobilized by a physical approach, respectively, further demonstrating the degradation mechanism of 2,4-dichlorophenol by microcapsule-immobilized laccase.
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Affiliation(s)
- Junya Yang
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Yan Huang
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Yuxiang Yang
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China.
| | - Hongming Yuan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Xiangnong Liu
- Analysis Test Center, Yangzhou University, Yangzhou 225009, China
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Kurnik K, Treder K, Skorupa-Kłaput M, Tretyn A, Tyburski J. Removal of Phenol from Synthetic and Industrial Wastewater by Potato Pulp Peroxidases. WATER, AIR, AND SOIL POLLUTION 2015; 226:254. [PMID: 26190873 PMCID: PMC4499105 DOI: 10.1007/s11270-015-2517-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/23/2015] [Indexed: 05/15/2023]
Abstract
Plant peroxidases have strong potential utility for decontamination of phenol-polluted wastewater. However, large-scale use of these enzymes for phenol depollution requires a source of cheap, abundant, and easily accessible peroxidase-containing material. In this study, we show that potato pulp, a waste product of the starch industry, contains large amounts of active peroxidases. We demonstrate that potato pulp may serve as a tool for peroxidase-based remediation of phenol pollution. The phenol removal efficiency of potato pulp was over 95 % for optimized phenol concentrations. The potato pulp enzymes maintained their activity at pH 4 to 8 and were stable over a wide temperature range. Phenol solutions treated with potato pulp showed a significant reduction in toxicity compared with untreated phenol solutions. Finally we determined that this method may be employed to remove phenol from industrial effluent with over 90 % removal efficiency under optimal conditions.
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Affiliation(s)
- Katarzyna Kurnik
- />Chair of Plant Physiology and Biotechnology, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland
| | - Krzysztof Treder
- />Laboratory of Molecular Diagnostic and Biochemistry, Department of Potato Protection and Seed Science in Bonin, Plant Breeding and Acclimatization Institute-National Research Institute, 76-009 Bonin, Poland
| | - Monika Skorupa-Kłaput
- />Chair of Plant Physiology and Biotechnology, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland
| | - Andrzej Tretyn
- />Chair of Plant Physiology and Biotechnology, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland
- />Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland
| | - Jarosław Tyburski
- />Chair of Plant Physiology and Biotechnology, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland
- />Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wileńska 4, 87-100 Toruń, Poland
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13
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Phytoremediation potentiality of garlic roots for 2,4-dichlorophenol removal from aqueous solutions. Appl Microbiol Biotechnol 2014; 99:3629-37. [DOI: 10.1007/s00253-014-6277-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 11/25/2014] [Accepted: 11/26/2014] [Indexed: 10/24/2022]
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