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Hamdi FM, Altaee A, Alsaka L, Ibrar I, Al-Ejji M, Zhou J, Samal AK, Hawari AH. Iron slag/activated carbon-electrokinetic system with anolyte recycling for single and mixture heavy metals remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172516. [PMID: 38636874 DOI: 10.1016/j.scitotenv.2024.172516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 04/02/2024] [Accepted: 04/14/2024] [Indexed: 04/20/2024]
Abstract
The electrokinetic process has been proposed for in-situ soil remediation to minimize excavation work and exposure to hazardous materials. The precipitation of heavy metals in alkaline pH near the cathode is still challenging. Reactive filter media and enhancement agents have been used in electrokinetics to enhance the removal of heavy metals. This study investigated coupling industrial iron slag waste and iron slag-activated carbon reactive filter media with electrokinetic for a single and mixture of heavy metals treatment. Instead of using acid enhancement agents, the anolyte solution was recycled to neutralize the alkaline front at the cathode, reducing the operation cost and chemical use. Experiments were conducted for 2 and 3 weeks at 20 mA electric current. Copper removal increased from 3.11 % to 23 % when iron slag reactive filter media was coupled with electrokinetic. Copper removal increased to 70.14 % in the electrokinetic experiment with iron slag-activated carbon reactive filter media. The copper removal increased to 89.21 % when the anolyte solution was recycled to the cathode compartment. Copper removal reached 93.45 % when the reactive filter media-electrokinetic process with anolyte recirculation was extended to 3 weeks. The reactive filter media- an electrokinetic process with anolyte recycling was evaluated for removing copper, nickel, and zinc mixture, and results revealed 81.1 % copper removal, 89.04 % nickel removal, and 92.31 % zinc removal in a 3-week experiment. The greater nickel and zinc removal is attributed to their higher solubility than copper. The results demonstrated the cost-effectiveness and efficiency of the electrokinetic with iron slag-activated carbon reactive filter media with anolyte recirculation for soil remediation from heavy metals.
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Affiliation(s)
- Faris M Hamdi
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia; Department of Civil Engineering, Jazan University, Jazan 82822, Saudi Arabia
| | - Ali Altaee
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia.
| | - Lilyan Alsaka
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia
| | - Ibrar Ibrar
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia
| | - Maryam Al-Ejji
- Center of Advanced Materials, Qatar University, PO Box 2713, Doha, Qatar
| | - John Zhou
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW 2007, Australia
| | - Akshaya K Samal
- Centre for Nano and Material Sciences, Jain University, Ramanagara, Bangalore 562 112, Karnataka, India
| | - Alaa H Hawari
- Department of Civil and Environmental Engineering, College of Engineering, Qatar University, PO Box 2713, Doha, Qatar
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2
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Cao P, Li Y, Shao J. Experimental Study on the Preparation of Lignin-Based Activated Carbon and the Adsorption Performance for Phenol. ACS OMEGA 2024; 9:24453-24463. [PMID: 38882099 PMCID: PMC11170647 DOI: 10.1021/acsomega.4c00352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 06/18/2024]
Abstract
Biomass waste and wastewater are important wastes in the process of industrialization, which need to be effectively treated and utilized. In this work, an innovative method of collaborative treatment of biomass waste and phenol-containing wastewater is proposed. Biomass waste was used to produce activated carbon (AC), and then AC was used for phenol removal in wastewater treatment. Two kinds of typical biomass waste material, namely, coconut shell and lignin, were used. Physical activation (steam activation) and chemical activation methods were compared. Results show that steam activation is an effective method for coconut shell AC production. The largest Brunauer-Emmett-Teller (BET) surface area was 1065 m2/g at 800 °C. Chemical activation could produce AC samples with higher BET specific surface area. The lignin AC with K2CO3 activation has the largest BET surface of 1723.8 m2/g at 800 °C. FTIR results indicated that K2CO3 activation could greatly enhance the formation of surface oxygen-containing functional groups. Both coconut shell AC and lignin AC samples show excellent performance for phenol removal. The highest phenol removal efficiency for coconut shell AC and lignin AC are 96.87% and 98.22%, respectively. Adsorption kinetic analysis show that the pseudo-first-order kinetic model is able to describe the adsorption characteristics of phenol in wastewater treatment. Recycling properties show that regeneration of lignin AC could maintain high adsorption performance for phenol.
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Affiliation(s)
- Ping Cao
- School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yuting Li
- School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jingli Shao
- Shanghai Composite Material Science & Technology Co., Ltd., Shanghai 201112, China
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3
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Saqib NU, Naqvi M, Li B, Sarmah AK, Munir MT. From scraps to purification: innovative use of food waste-derived hydrochar in eradicating pharmaceutical pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33630-1. [PMID: 38758447 DOI: 10.1007/s11356-024-33630-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 05/06/2024] [Indexed: 05/18/2024]
Abstract
Chemical products (CPs) such as carbamazepine and naproxen, present in aquatic environments, pose significant risks to both aquatic life and human health. This study investigated the use of hydrothermally carbonized food waste-derived hydrochar (AC-HTC) at three distinct temperatures (200, 250, and 300 °C) as an adsorbent to remove these CPs from water. Our research focused on the impact of hydrothermal carbonization temperature on hydrochar properties and the effects of chemical activation with phosphoric acid on adsorption capacity. Hydrothermal carbonization increased the hydrochar's surface area from 1.47 to 7.52 m2/g, which was further enhanced to 32.81 m2/g after activation with phosphoric acid. Batch adsorption experiments revealed that hydrochar produced at 250 °C (AC-HTC-250) demonstrated high adsorption capacities of 49.10 mg/g for carbamazepine and 14.35 mg/g for naproxen, outperforming several conventional adsorbents. Optimal adsorption occurred at pH 4, aligning well with the Langmuir and pseudo-first-order models. The hydrochar showed potential for regeneration and multiple uses, suggesting its applicability in sustainable wastewater treatment. Future research will explore scalability and effectiveness against a broader range of pollutants.
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Affiliation(s)
- Najam Ul Saqib
- Department of Civil & Environmental Engineering, The University of Auckland, Auckland, New Zealand
| | - Muhammad Naqvi
- College of Engineering and Technology, American University of the Middle East, Egaila, 54200, Kuwait
| | - Bing Li
- Water Research Center, Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Ajit K Sarmah
- Department of Civil & Environmental Engineering, The University of Auckland, Auckland, New Zealand
| | - Muhammad Tajammal Munir
- College of Engineering and Technology, American University of the Middle East, Egaila, 54200, Kuwait.
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4
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Huang W, Wang L, Zhu J, Dong L, Hu H, Yao H, Wang L, Lin Z. Application of machine learning in prediction of Pb 2+ adsorption of biochar prepared by tube furnace and fluidized bed. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:27286-27303. [PMID: 38507168 DOI: 10.1007/s11356-024-32951-5] [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: 04/19/2023] [Accepted: 03/12/2024] [Indexed: 03/22/2024]
Abstract
Data mining by machine learning (ML) has recently come into application in heavy metals purification from wastewater, especially in exploring lead removal by biochar that prepared using tube furnace (TF-C) and fluidized bed (FB-C) pyrolysis methods. In this study, six ML models including Random Forest Regression (RFR), Gradient Boosting Regression (GBR), Support Vector Regression (SVR), Kernel Ridge Regression (KRR), Extreme Gradient Boosting (XGB), and Light Gradient Boosting Machine (LGBM) were employed to predict lead adsorption based on a dataset of 1012 adsorption experiments, comprising 422 TF-C groups from our experiments and 590 FB-C groups from literatures. The XGB model showed superior accuracy and predictive performance for adsorption, achieving R2 values for TF-C (0.992) and FB-C (0.981), respectively. Contrasting inferior results were observed in other models, including RF (0.962 and 0.961), GBR (0.987 and 0.975), SVR (0.839 and 0.763), KRR (0.817 and 0.881), and LGBM (0.975 and 0.868). Additionally, a hybrid dataset combining both biochars in Pb adsorption also indicated high accuracy (0.972) as obtained from XGB model. The investigation revealed that the influence of char characteristics and adsorption conditions on Pb adsorption differs between the two biochar. Specific char characteristics, particularly nitrogen content, significantly influence lead adsorption in both biochar. Interestingly, the influence of pyrolysis temperature (PT) on lead adsorption is found to be greater for TF-C than for FB-C. Consequently, careful consideration of PT is crucial when preparing TF-C biochar. These findings offer practical guidance for optimizing biochar preparation conditions during heavy metal removal from wastewater.
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Affiliation(s)
- Wei Huang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
- Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China
| | - Liang Wang
- China Power Hua Chuang (Suzhou) Electricity Technology Research Company Co., Ltd., Suzhou, 215125, China
| | - JingJing Zhu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lu Dong
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
- Research Institute, Huazhong University of Science and Technology in Shenzhen, Wuhan, 430074, China.
| | - Hongyun Hu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
- Research Institute, Huazhong University of Science and Technology in Shenzhen, Wuhan, 430074, China
| | - Hong Yao
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - LinLing Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhong Lin
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang, 524088, PR China
- Shenzhen Research Institute of Guangdong Ocean University, Shenzhen, 518108, PR China
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5
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Tan B, He Z, Fang Y, Zhu L. Removal of organic pollutants in shale gas fracturing flowback and produced water: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 883:163478. [PMID: 37062313 DOI: 10.1016/j.scitotenv.2023.163478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/28/2023] [Accepted: 04/09/2023] [Indexed: 06/03/2023]
Abstract
Shale gas has been developed as an alternative to conventional energy worldwide, resulting in a large amount of shale gas fracturing flowback and produced water (FPW). Previous studies focus on total dissolved solids reduction using membrane desalination. However, there is a lack of efficient and stable techniques to remove organic pollutants, resulting in severe membrane fouling in downstream processes. This review focuses on the concentration and chemical composition of organic matter in shale gas FPW in China, as well as the hazards of organic pollutants. Organic removal techniques, including advanced oxidation processes, coagulation, sorption, microbial degradation, and membrane treatment are systematically reviewed. In particular, the influences of high salt on each technique are highlighted. Finally, different treatment techniques are evaluated in terms of energy consumption, cost, and organic removal efficiency. It is concluded that integrated coagulation-sorption-Fenton-membrane filtration represents a promising treatment process for FPW. This review provides valuable information for the feasible design, practical operation, and optimization of FPW treatment.
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Affiliation(s)
- Bin Tan
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Hangzhou Shangtuo Environmental Technology Co., Ltd, Hangzhou 311121, China
| | - Zhengming He
- School of Environment and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China
| | - Yuchun Fang
- Hangzhou Shangtuo Environmental Technology Co., Ltd, Hangzhou 311121, China
| | - Lizhong Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China.
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6
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Phonlam T, Weerasuk B, Sataman P, Duangmanee T, Thongphanit S, Nilgumhang K, Anantachaisilp S, Chutimasakul T, Kwamman T, Chobpattana V. Ammonia modification of activated carbon derived from biomass via gamma irradiation vs. hydrothermal method for methylene blue removal. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1016/j.sajce.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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7
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Chakraborty A, Pal A, Saha BB. A Critical Review of the Removal of Radionuclides from Wastewater Employing Activated Carbon as an Adsorbent. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8818. [PMID: 36556624 PMCID: PMC9788631 DOI: 10.3390/ma15248818] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/29/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Radionuclide-contaminated water is carcinogenic and poses numerous severe health risks and environmental dangers. The activated carbon (AC)-based adsorption technique has great potential for treating radionuclide-contaminated water due to its simple design, high efficiency, wide pH range, quickness, low cost and environmental friendliness. This critical review first provides a brief overview of the concerned radionuclides with their associated health hazards as well as different removal techniques and their efficacy of removing them. Following this overview, this study summarizes the surface characteristics and adsorption capabilities of AC derived from different biomass precursors. It compares the adsorption performance of AC to other adsorbents, such as zeolite, graphene, carbon nano-tubes and metal-organic frameworks. Furthermore, this study highlights the different factors that influence the physical characteristics of AC and adsorption capacity, including contact time, solution pH, initial concentration of radionuclides, the initial dosage of the adsorbent, and adsorption temperature. The theoretical models of adsorption isotherm and kinetics, along with their fitting parameter values for AC/radionuclide pairs, are also reviewed. Finally, the modification procedures of pristine AC, factors determining AC characteristics and the impact of modifying agents on the adsorption ability of AC are elucidated in this study; therefore, further research and development can be promoted for designing a highly efficient and practical adsorption-based radionuclide removal system.
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Affiliation(s)
- Anik Chakraborty
- Department of Nuclear Engineering, University of Dhaka, Dhaka 1000, Bangladesh
| | - Animesh Pal
- Department of Nuclear Engineering, University of Dhaka, Dhaka 1000, Bangladesh
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Bidyut Baran Saha
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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8
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Azam K, Shezad N, Shafiq I, Akhter P, Akhtar F, Jamil F, Shafique S, Park YK, Hussain M. A review on activated carbon modifications for the treatment of wastewater containing anionic dyes. CHEMOSPHERE 2022; 306:135566. [PMID: 35787877 DOI: 10.1016/j.chemosphere.2022.135566] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/14/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Polluted water resources, particularly those polluted with industrial effluents' dyes, are carcinogenic and hence pose a severe threat to sustainable and longstanding worldwide development. Meanwhile, adsorption is a promising process for polluted/wastewater treatment. In particular, activated carbon (AC) is popular among various wastewater treatment adsorbents, especially in the organic contaminants' remediation in wastewater. Hence, the AC's synthesis from degradable and non-degradable resources, the carbon activation involved in the AC synthesis, and the AC's modification to cutting-edge and effective materials have been modern-research targets in recent years. Likewise, the main research focuses worldwide have been the salient AC characteristics, such as its surface chemistry, porosity, and enhanced surface area. Notably, various modified-AC synthesis methods have been employed to enhance the AC's potential for improved contaminants-removal. Hence, we critically analyze the different modified ACs (with enhanced (surface) functional groups and textural properties) of their capacity to remove different-natured anionic dyes in wastewater. We also discuss the corresponding AC modification techniques, the factors affecting the AC properties, and the modifying agents' influence on the AC's morphological/adsorptive properties. Finally, the AC research of future interest has been proposed by identifying the current AC research gaps, especially related to the AC's application in wastewater treatment.
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Affiliation(s)
- Kshaf Azam
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore, Pakistan
| | - Nasir Shezad
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore, Pakistan; Division of Materials Science, Luleå University of Technology, 97187, Luleå, Sweden
| | - Iqrash Shafiq
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore, Pakistan
| | - Parveen Akhter
- Department of Chemistry, The University of Lahore, 1-km Defence Road, Off Raiwind Road, Lahore, Pakistan
| | - Farid Akhtar
- Division of Materials Science, Luleå University of Technology, 97187, Luleå, Sweden
| | - Farrukh Jamil
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore, Pakistan
| | - Sumeer Shafique
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore, Pakistan
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea.
| | - Murid Hussain
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore, Pakistan.
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Nabais JMV, Laguinhas CE, Román S. Biomass Novel Adsorbents for Phenol and Mercury Removal. Molecules 2022; 27:7345. [PMID: 36364170 PMCID: PMC9655624 DOI: 10.3390/molecules27217345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/22/2022] [Accepted: 10/26/2022] [Indexed: 01/10/2024] Open
Abstract
This paper reports the use of activated carbons made from novel agriculture and industrial wastes, namely sunflower, vine shoots, and coffee endocarp, to remove two high-priority contaminants: phenol and mercury species (under different forms) from aqueous solutions. The activated carbons were used as prepared and also modified with nitric acid and triethylenediamine in order to explore additional adsorption mechanisms. The results showed an interesting potential of the materials to be used for water decontamination as indicated by the mercury uptake up to 1104 mg/g for Hg2+, 771 mg/g for [HgCl4]2-, 966 mg/g for HgCl2 and the maximum phenol adsorption capacity of 190 mg/g. The modification with triethylenediamine led to a significant increase in the phenol and mercury adsorption reaching an increment of 85% for phenol and 250% for Hg2+.
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Affiliation(s)
| | - Carlos Eduardo Laguinhas
- Comprehensive Health Research Center (CHRC), 1150-082 Lisbon, Portugal
- Departamento de Química, Universidade de Évora, Escola de Ciências e Tecnologia, Rua Romão Ramalho n° 59, 7000-671 Évora, Portugal
| | - Silvia Román
- Departamento de Física Aplicada, Universidad de Extremadura, Avda Elvas s/n, 06071 Badajoz, Spain
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10
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Recent Developments in Activated Carbon Catalysts Based on Pore Size Regulation in the Application of Catalytic Ozonation. Catalysts 2022. [DOI: 10.3390/catal12101085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Due to its highly developed pore structure and large specific surface area, activated carbon is often used as a catalyst or catalyst carrier in catalytic ozonation. Although the pore structure of activated carbon plays a significant role in the treatment of wastewater and the mass transfer of ozone molecules, the effect is complicated and unclear. Because different application scenarios require catalysts with different pore structures, catalysts with appropriate pore structure characteristics should be developed. In this review, we systematically summarized the current adjustment methods for the pore structure of activated carbon, including raw material, carbonization, activation, modification, and loading. Then, based on the brief introduction of the application of activated carbon in catalytic ozonation, the effects of pore structure on catalytic ozonation and mass transfer are reviewed. Furthermore, we proposed that the effect of pore structure is mainly to provide catalytic active sites, promote free radical generation, and reduce mass transfer resistance. Therefore, large external surface area and reasonable pore size distribution are conducive to catalytic ozonation and mass transfer.
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11
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Lignite-Based N-Doped Porous Carbon as an Efficient Adsorbent for Phenol Adsorption. Processes (Basel) 2022. [DOI: 10.3390/pr10091746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The treatment of phenolic-containing wastewater has received increased attention in recent years. In this study, the N-doped porous carbons were prepared from lignite with tripolycyanamide as the N source, and their phenol adsorption behaviors were investigated. Results clearly showed that the addition of tripolycyanamide largely improved the surface area, micropore volume, N content and thus the phenol adsorption capacity of lignite-based carbons. The N-doped sample prepared at 700 °C showed a surface area of 1630 m2/g and a phenol adsorption capacity as high as 182.4 mg/g at 20 °C, which were 2.0 and 1.6 times that of the lignite-based carbon without N-doping. Pseudo-second order and Freundlich adsorption isotherm models could better explain the phenol adsorption behaviors over lignite-based N-doped porous carbon. Theoretical calculations demonstrated that phenol adsorption energies over graphitic-N (−72 kJ/mol) and pyrrolic-N (−74 kJ/mol) groups were slightly lower than that over the N-free graphite layer (−71 kJ/mol), supporting that these N-containing groups contribute to enhance the phenol adsorption capacity. The adsorption mechanism of phenol over porous carbon might be interpreted by the π–π dispersion interactions between aromatic-ring and carbon planes, which could be enhanced by N-doping through increasing π electron densities in the carbon plane.
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12
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Lu H, Xu J, Feng Z, Li F, Cao X, Yang J. Effects of different modifiers on the sorption and structural properties of biochar derived from wheat stalk. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:54988-55002. [PMID: 35312917 DOI: 10.1007/s11356-022-19351-3] [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: 10/19/2021] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
Nitrobenzene is a widespread contaminant in water. Biochar (BC) is a promising material for removing organic pollutants, but the adsorption capacity of pristine BC is low. Chemical modification is often used to improve the adsorption performance, but information on the sorption of nitrobenzene by modified BC is rare. In this study, BCs pyrolyzed at 300, 500, and 700 °C were modified by hydrochloric acid (HCl), sulfuric acid (H2SO4), sodium hydroxide (NaOH), hydrogen peroxide (H2O2), and nitric acid (HNO3), respectively. The properties, nitrobenzene sorption behaviors, and sorption mechanisms of different BCs were analyzed. The results showed that chemical modification decreased the sorption of nitrobenzene on BCs pyrolyzed at 300 °C, possibly due to the loss of the partition phase and the increase in polarity after modification. Regarding BCs pyrolyzed at 500 and 700 °C, the NaOH and HCl modifications significantly increased the sorption capacity by 19% and 60%, 18%, and 41%, respectively, possibly due to the increase in surface area, available pores, and aromaticity, while HNO3 modification decreased the sorption capacity by 41% and 31%. Two reasons were probably responsible for the decrease: one was the decrease in surface area after HNO3 modification due to the destruction of pore walls and the continuity of holes; the other was the strong repulsion between the nitro groups formed on the surface of BC and the nitro groups of nitrobenzene that drove nitrobenzene molecules away from the surface. A principal component-based comprehensive evaluation of the BC properties, which were significantly correlated with the sorption isotherm parameters, was used to evaluate the nitrobenzene sorption performance of the modified BC. Overall, BC pyrolyzed at 700 °C modified with NaOH or HCl were proposed as effective sorption materials for the removal of nitrobenzene in environment, which also provided a chemical modified method of biochar derived from agricultural waste.
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Affiliation(s)
- Hainan Lu
- Shanghai Academy of Environmental Sciences, 200233, Shanghai, China
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jiacheng Xu
- Shanghai Academy of Environmental Sciences, 200233, Shanghai, China
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Zhengjun Feng
- Institute of Loess Plateau, Shanxi University, Taiyuan, 030006, Shanxi, China
| | - Feng Li
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Xinde Cao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jie Yang
- Shanghai Academy of Environmental Sciences, 200233, Shanghai, China.
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13
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Acetylcholinesterase Biosensor Based on Functionalized Renewable Carbon Platform for Detection of Carbaryl in Food. BIOSENSORS 2022; 12:bios12070486. [PMID: 35884288 PMCID: PMC9313315 DOI: 10.3390/bios12070486] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 01/05/2023]
Abstract
Enzymatic electrochemical biosensors play an important role in the agri-food sector due to the need to develop sustainable, low-cost, and easy-to-use analytical devices. Such biosensors can be used to monitor pathogens, endocrine disruptors, and pesticides, such as carbaryl, widely used in many crops. The use of renewable carbon (RC) sources, provided from biomass pyrolysis has been often applied in the fabrication of such sensors. This material is a great candidate for biosensor fabrication due to the presence of surface functional groups, porosity, and moderate surface area. This work describes the functionalization of RC material through an acid treatment with a sulfonitric solution HNO3/H2SO4 (1:3) and the resulting material was characterized by scanning electron microscopy. The obtained RC functionalized (RCF) and the acetylcholinesterase enzyme (AChE) were applied in the construction of the electrochemical biosensor on glassy carbon (GC) electrode and used to detect carbaryl in apple samples. The GC/RCF/AChE biosensor was able to detect the carbaryl pesticide from 5.0 to 30.0 nmol L−1, displaying a LOD of 4.5 nmol L−1. The detection of carbaryl in apple samples presented recoveries between 102.5 to 118.6% through the standard addition method. The proposed biosensor is a promising renewable tool for food safety.
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14
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Zhou H, Rayer C, Antonangelo AR, Hawkins N, Carta M. Adjustable Functionalization of Hyper-Cross-Linked Polymers of Intrinsic Microporosity for Enhanced CO 2 Adsorption and Selectivity over N 2 and CH 4. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20997-21006. [PMID: 35471026 PMCID: PMC9100501 DOI: 10.1021/acsami.2c02604] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this paper, we report the design, synthesis, and characterization of a series of hyper-cross-linked polymers of intrinsic microporosity (PIMs), with high CO2 uptake and good CO2/N2 and CO2/CH4 selectivity, which makes them competitive for carbon capture and biogas upgrading. The starting hydrocarbon polymers' backbones were functionalized with groups such as -NO2, -NH2, and -HSO3, with the aim of tuning their adsorption selectivity toward CO2 over nitrogen and methane. This led to a significant improvement in the performance in the potential separation of these gases. All polymers were characterized via Fourier transform infrared (FTIR) spectroscopy and 13C solid-state NMR to confirm their molecular structures and isothermal gas adsorption to assess their porosity, pore size distribution, and selectivity. The insertion of the functional groups resulted in an overall decrease in the porosity of the starting polymers, which was compensated with an improvement in the final CO2 uptake and selectivity over the chosen gases. The best uptakes were achieved with the sulfonated polymers, which reached up to 298 mg g-1 (6.77 mmol g-1), whereas the best CO2/N2 selectivities were recorded by the aminated polymers, which reached 26.5. Regarding CH4, the most interesting selectivities over CO2 were also obtained with the aminated PIMs, with values up to 8.6. The reason for the improvements was ascribed to a synergetic contribution of porosity, choice of the functional group, and optimal isosteric heat of adsorption of the materials.
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Affiliation(s)
- Haoli Zhou
- Department
of Chemistry, Swansea University, College
of Science, Grove Building, Singleton Park, Swansea SA2 8PP, U.K.
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, 5 Xinmofan Road, Nanjing 210009, P. R. China
| | - Christopher Rayer
- Department
of Chemistry, Swansea University, College
of Science, Grove Building, Singleton Park, Swansea SA2 8PP, U.K.
| | - Ariana R. Antonangelo
- Department
of Chemistry, Swansea University, College
of Science, Grove Building, Singleton Park, Swansea SA2 8PP, U.K.
| | - Natasha Hawkins
- Department
of Chemistry, Swansea University, College
of Science, Grove Building, Singleton Park, Swansea SA2 8PP, U.K.
| | - Mariolino Carta
- Department
of Chemistry, Swansea University, College
of Science, Grove Building, Singleton Park, Swansea SA2 8PP, U.K.
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15
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Kinetics and Equilibrium Studies of the Adsorption of Copper(II) Ions from Industrial Wastewater Using Activated Carbons Derived from Sugarcane Bagasse. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1155/2022/6928568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The monocomponent adsorption process of Cu(II) ions in synthesized industrial wastewater were investigated using activated carbons (BACs) derived from sugarcane bagasse as the precursor. Batch adsorption studies were done by treating the precursor with H3PO4 (BAC-P) and ZnCl2 (BAC-Zn) in order to observe the effects of experimental variables such as contact time, pH of the solution, and adsorbent dose. The Langmuir isotherm model excellently described the adsorption data for both the derived BACs, indicating monolayer coverage on the BACs with the determination coefficients close to the value of one. Furthermore, the maximum adsorption capacities of 589 and 225
at 30°C were obtained for BAC-P and BAC-Zn adsorbents, respectively. The modeling of kinetic data of Cu(II) ions adsorption onto BAC-P and BAC-Zn adsorbents illustrated that the Elovich kinetic model fitted well. Here, the adsorption process was film-diffusion controlling, while being principally governed by external mass transport where the slowest step is the diffusion of the particles through the film layer. The mechanism of the adsorption process was proposed taking into cognizance of the ion exchange and surface complexation on active sites between the negatively charged surface of the BACs and the positively charged Cu(II) ions. The BACs were characterized using analytical methods such as SEM, FTIR, EDX, XRD, BET surface area, and zeta potential measurements. Both BACs mainly composed of mesopores and bonds of O-H, C-O, C=O, and C-O-C. The BET surface area of BAC-P and BAC-Zn was 427.5 and 282 m2/g before adsorption, and their isoelectric point (pHIEP) 3.70 and 5.26, respectively.
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16
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Zhan MX, Liu YW, Ye WW, Chen T, Jiao WT. Modification of activated carbon using urea to enhance the adsorption of dioxins. ENVIRONMENTAL RESEARCH 2022; 204:112035. [PMID: 34509483 DOI: 10.1016/j.envres.2021.112035] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/07/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Activated carbon is commonly used to remove dioxins from flue gas via adsorption. Improving the targeted adsorption capacity of activated carbon for dioxins can reduce the consumption of adsorbents and help achieve emission standards for target pollutants. Here, commercial coal-based activated carbon was used as a raw material and modified by urea impregnation along with treatment at high temperature under a nitrogen atmosphere. It was found that modification with urea effectively improved the pore structure of activated carbon while incorporating a certain amount of nitrogen. The best modification effect was achieved at a modification temperature of 600 °C, an impregnation ratio of urea to activated carbon of 1:1, and with high-temperature treatment for 2 h. The mesopore volume of the modified activated carbon (AC600) reached 0.38 cm3/g, accounting for 57.58% of the total pore volume. With an impregnation ratio of urea to activated carbon of 1:1, high-temperature treatment for 2 h, and a modification temperature of 800 °C, a certain amount of nitrogen was introduced into the carbon rings to form a modified activated carbon (AC800) rich in pyridine and pyrrole groups (atomic percentage = 4.84%). The activated carbon modified by urea and the unmodified activated carbon were subsequently selected for dioxin adsorption experiments using a dioxin generation and adsorption system. AC600 showed the highest adsorption efficiency for dioxins, reaching 97.65%, based on toxicity equivalents. Although AC800 has poor pore properties, it has more pyridine and pyrrole groups than AC600. Consequently, the efficiency of AC800 at adsorbing low-concentration dioxins reached 85.24% based on toxicity equivalents. Overall, this study describes two mechanisms for effectively modifying activated carbon with urea based on (1) optimizing the pore structure of activated carbon and (2) incorporating nitrogen.
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Affiliation(s)
- Ming-Xiu Zhan
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, 310018, Zhejiang Province, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, China 18 Shuangqing Road, Haidian District, Beijing, 100085, China
| | - Yu-Wei Liu
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, China; Shanghai SUS Environmental Co. Ltd., 9 Songqiu Road, Qingpu District, Shanghai, 201703, China
| | - Wen-Wen Ye
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, 310018, Zhejiang Province, China
| | - Tong Chen
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, China
| | - Wen-Tao Jiao
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, China 18 Shuangqing Road, Haidian District, Beijing, 100085, China.
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17
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Demiral İ, Samdan C. Improving Cd+2 adsorption capacity of activated carbon by modification method: optimization with taguchi experiment design and analysis of variance. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-02011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Xiao Y, Tian L, Liu X. Kinetic mechanism on elemental mercury adsorption by brominated petroleum coke in simulated flue gas. RSC Adv 2022; 12:16386-16395. [PMID: 35747529 PMCID: PMC9159097 DOI: 10.1039/d2ra02318k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/26/2022] [Indexed: 11/24/2022] Open
Abstract
A waste byproduct of petroleum coke was obtained as a precursor modified with bromine for elemental mercury capture from simulated flue gas on a bench scale fixed-bed reactor. The reaction temperature, the initial inlet elemental mercury concentration and the individual flue gas components of O2, NO, SO2 and HCl were determined to explore their influence on elemental mercury capture by the brominated petroleum coke. Results indicate that high initial inlet mercury concentration can enhance initial mercury accumulation and the optimal temperature for elemental mercury capture by brominated petroleum coke is about 150 °C. Kinetic models reveal that the pseudo-second order and Elovich models are best fitted to the mercury adsorption process, indicating that chemisorption is the control step with the intra-particle diffusion and external mass transfer taking place simultaneously. The kinetic parameters demonstrate that the initial mercury adsorption rate (h or a) and the equilibrium adsorption quantity (Qe) increase remarkably, when higher concentrations of O2 or NO exist in N2 atmosphere. On the contrary, Qe decreases with the presence of high SO2 or HCl, which indicates a two-sided effect on the performance of mercury adsorption owing to their concentrations. A waste byproduct of petroleum coke was obtained as a precursor modified with bromine for elemental mercury capture from simulated flue gas on a bench scale fixed-bed reactor.![]()
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Affiliation(s)
- Yi Xiao
- Shanghai Vocational College of Agriculture and Forestry, 658 Zhongshan Road, Shanghai 201699, P. R. China
| | - Li Tian
- School of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Xiuyun Liu
- Shanghai Vocational College of Agriculture and Forestry, 658 Zhongshan Road, Shanghai 201699, P. R. China
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19
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Larasati A, Fowler GD, Graham NJD. Extending granular activated carbon (GAC) bed life: A column study of in-situ chemical regeneration of pesticide loaded activated carbon for water treatment. CHEMOSPHERE 2022; 286:131888. [PMID: 34418652 DOI: 10.1016/j.chemosphere.2021.131888] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/26/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
In-situ chemical regeneration of granular activated carbon (GAC) may represent an advantageous alternative to conventional off-site thermal regeneration in water treatment applications. The performance of chemical regeneration of carbon exhausted by metaldehyde and isoproturon was investigated using rapid small-scale column tests, performed using a sequence of pesticide adsorption and chemical regeneration cycles with a novel alkaline-organic regenerant solution. A fresh regenerant solution was able to achieve 82% and 45% regeneration of carbon exhausted by metaldehyde and isoproturon, respectively. After the first regeneration, the performance declined slightly to 79%, and to 36% after the fourth regeneration. A comparison using a thermally regenerated (operational) carbon suggested that chemical regeneration was more beneficial for carbon exhausted by metaldehyde. The regenerant solution has a potential to be re-used multiple times, thereby minimizing the amount of waste chemicals generated. A series of carbon characterization tests showed that chemical regeneration did not alter the surface area, pore size distribution and surface chemistry of the carbon. As part of the evaluation, the adsorption thermodynamics of virgin and chemically regenerated carbons were determined using isothermal titration calorimetry to evaluate the adsorption behaviour of the pesticides on the carbon samples. The relatively high regeneration efficiency achieved by chemical regeneration, and minimal deleterious effect to the physico-chemical properties of the carbon, demonstrated the beneficial potential of this process as an alternative to conventional thermal regeneration of GAC.
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Affiliation(s)
- Amanda Larasati
- Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom.
| | - Geoffrey D Fowler
- Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
| | - Nigel J D Graham
- Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
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20
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Wang X, Cheng H, Ye G, Fan J, Yao F, Wang Y, Jiao Y, Zhu W, Huang H, Ye D. Key factors and primary modification methods of activated carbon and their application in adsorption of carbon-based gases: A review. CHEMOSPHERE 2022; 287:131995. [PMID: 34509016 DOI: 10.1016/j.chemosphere.2021.131995] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/26/2021] [Accepted: 08/22/2021] [Indexed: 06/13/2023]
Abstract
To achieve carbon neutrality, it is necessary to control carbon-based gas emissions to the atmosphere. Among the various carbon-based gas removal technologies reported to date, adsorption is considered one of the most promising because of its economic efficiency, reusability, and low energy consumption. Activated carbon is widely used to treat different types of carbon-based gases owing to its large specific surface area, abundant functional groups, and strong adsorption capacity. This paper reviews the recent research progress into activated carbon as an adsorbent for carbon-based gases. The key factors (i.e., specific surface area, pore structure, and surface functional groups) affecting the adsorption of carbon-based gases by activated carbon were analyzed. The main methods employed to modify activated carbon (i.e., surface oxidation, surface reduction, loading materials, and plasma modification methods) to improve its adsorption capacity are also discussed herein, along with the targeted applications of such material in the adsorption of different types of carbon-based gases (such as aldehydes, ketones, aromatic hydrocarbons, halogenated hydrocarbons, and carbon-based greenhouse gases). Finally, the future development directions and challenges of activated carbon are discussed. Our work will be expected to benefit the development of activated carbon exhibiting selective adsorption properties, and reduce the production costs of adsorbents.
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Affiliation(s)
- Xiaohong Wang
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Hairong Cheng
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Guangzheng Ye
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Jie Fan
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Fan Yao
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Yuqin Wang
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Yujun Jiao
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Wenfu Zhu
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Haomin Huang
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, 510006, Guangzhou, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), 510006, Guangzhou, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, South China University of Technology, 510006, Guangzhou, China.
| | - Daiqi Ye
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, 510006, Guangzhou, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), 510006, Guangzhou, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, South China University of Technology, 510006, Guangzhou, China
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21
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Zhu Y, Wu J, Wang H, Wang J, Shen H, Ying Z. Interference Effect of Experimental Parameters on the Mercury Removal Mechanism of Biomass Char under an Oxy-Fuel Atmosphere. ACS OMEGA 2021; 6:35124-35133. [PMID: 34963993 PMCID: PMC8697621 DOI: 10.1021/acsomega.1c06038] [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: 10/28/2021] [Accepted: 12/01/2021] [Indexed: 06/14/2023]
Abstract
In this paper, the effect of temperature, adsorption bed height, and initial mercury concentration under oxy-fuel combustion on mercury adsorption by 1% NH4Cl-modified biomass char was studied. Modification enriched the pore structure of biomass char and increased the number of surface functional groups. Higher temperature would lead to the destruction of van der Waals and reduce the adsorption efficiency, while the change of adsorption bed height had no obvious effect. Adsorption thermodynamics shows that the mercury removal process is a spontaneous exothermic process. The increase of initial mercury concentration would increase the driving force of mercury diffusion to the surface and improve the adsorption capacity. Meanwhile, three kinetic models including the intraparticle diffusion model, pseudo-first-order model, and pseudo-second-order model were applied to explore the internal mechanism of mercury adsorption by biomass char. The results showed that the pseudo-first-order model and pseudo-second-order model could accurately describe the adsorption process, which meant that the progress of external mass transfer played an important role in the adsorption of mercury while chemical adsorption should not be ignored. The intraparticle diffusion model indicated that internal diffusion was not the only step to control the entire adsorption process and did not have an inhibition on mercury removal. Higher initial mercury concentration would promote the external mass transfer progress and chemical adsorption progress. In addition, higher temperature inhibited the external mass transfer, which was not conducive to the adsorption of mercury.
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Affiliation(s)
- Yiming Zhu
- School
of Energy and Power Engineering, Nanjing
University of Science and Technology, Nanjing 210094, China
| | - Jingmao Wu
- School
of Energy and Power Engineering, Nanjing
University of Science and Technology, Nanjing 210094, China
| | - Hui Wang
- School
of Energy and Power Engineering, Nanjing
University of Science and Technology, Nanjing 210094, China
| | - Jiajun Wang
- School
of Energy and Power Engineering, Nanjing
University of Science and Technology, Nanjing 210094, China
| | - Haotian Shen
- Nanjing
Institute of Future Energy System, Institute of Engineering Thermodynamics, Chinese Academy of Sciences, Nanjing 210000, China
| | - Zhanfeng Ying
- School
of Energy and Power Engineering, Nanjing
University of Science and Technology, Nanjing 210094, China
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22
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High-Performance Pd/AC Catalyst for Meropenem Synthesis Based on Selective Surface Modification of Activated Carbon. Catal Letters 2021. [DOI: 10.1007/s10562-021-03783-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Petronijević M, Panić S, Savić S, Agbaba J, Molnar Jazić J, Milanović M, Đurišić-Mladenović N. Characterization and application of biochar-immobilized crude horseradish peroxidase for removal of phenol from water. Colloids Surf B Biointerfaces 2021; 208:112038. [PMID: 34454363 DOI: 10.1016/j.colsurfb.2021.112038] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/22/2021] [Accepted: 08/12/2021] [Indexed: 01/18/2023]
Abstract
Biochar (BC) has attracted much attention as an environmentally friendly material for application in wastewater treatment. In this study, a suitability of wood-derived BC as a support for covalent immobilization of horseradish peroxidase (HRP) across glutaraldehide as crosslinker, known for the capability to remove phenol from water, was investigated. The efficiency of the immobilized HRP in removal of phenol (2 mM) from water at different reaction conditions (varying dosages of polyethylene glycol (PEG300) 0-750 mg/L; H2O2 1.5-3.5 mM, as well as reaction time 5-120 min) and the general toxicity of bio-treated water (Allium cepa test) were measured. All analyzes were performed for free enzyme as well. The immobilized enzyme showed the highest activity at temperature 30 °C and pH 7.0. The greatest efficiency of immobilized enzyme in phenol removing (90 %) was obtained by applying 2.5 mM H2O2 and 1.5 mg/L of PEG300 at pH 7.0 after 2 h of reaction period. After 4 washings, immobilized HRP retained more than 79 % activity with phenol removal of 64 %. Utilizing immobilized enzyme significantly reduces the toxicity of the tested water (80 %), which further suggested that it might be considered as an environmentally acceptable process for wastewater treatment. Possible degradation products remained in treated water were analyzed in water samples by liquid and gas chromatography with mass spectrometry, including also analysis of volatiles by solid phase microextraction technique; different phenol-base compounds were detected.
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Affiliation(s)
- Mirjana Petronijević
- University of Novi Sad, Faculty of Technology Novi Sad, 21000, Novi Sad, Bulevar cara Lazara 1, Serbia.
| | - Sanja Panić
- University of Novi Sad, Faculty of Technology Novi Sad, 21000, Novi Sad, Bulevar cara Lazara 1, Serbia
| | - Saša Savić
- University of Niš, Faculty of Technology, 16000, Leskovac, Bulevar Oslobođenja 124, Serbia
| | - Jasmina Agbaba
- University of Novi Sad, Faculty of Science, 21000, Novi Sad, Trg Dositeja Obradovića 3, Serbia
| | - Jelena Molnar Jazić
- University of Novi Sad, Faculty of Science, 21000, Novi Sad, Trg Dositeja Obradovića 3, Serbia
| | - Marija Milanović
- University of Novi Sad, Faculty of Technology Novi Sad, 21000, Novi Sad, Bulevar cara Lazara 1, Serbia
| | - Nataša Đurišić-Mladenović
- University of Novi Sad, Faculty of Technology Novi Sad, 21000, Novi Sad, Bulevar cara Lazara 1, Serbia
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24
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Liu H, Kim GE, Hong CO, Song YC, Lee WK, Liu D, Jang SH, Park YK. Treatment of phenol wastewater using nitrogen-doped magnetic mesoporous hollow carbon. CHEMOSPHERE 2021; 271:129595. [PMID: 33460892 DOI: 10.1016/j.chemosphere.2021.129595] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/01/2021] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Nitrogen-doped magnetic mesoporous hollow carbon (NMMHC) was prepared to realize effective adsorption of phenol from wastewater. The chemical and physical properties of NMMHC were analyzed, and the effects of adsorption time, initial pH, and phenol concentration on the adsorption capacity of NMMHC were studied. Adsorption kinetics and isotherm models were used to explain the adsorption properties. The results showed that the specific surface area, type of nitrogen group, and nitrogen content of NMMHC are related to the carbonization temperature. Chemical interaction was demonstrated to be present in the process of adsorption, which was characterized as monolayer adsorption. In addition, the adsorption mechanism was studied by attenuated total internal reflectance Fourier transform infrared spectroscopy and analysis of non-covalent interactions. This study found that non-covalent interactions between NMMHC and phenol molecules are van der Waals interactions, and nitrogen-containing groups increase the phenol adsorption capacity by enhancing such interactions. The π-π interactions between the nitrogen groups and phenol molecules also enhanced the adsorption energy.
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Affiliation(s)
- Hao Liu
- Department of Bio-Environmental Energy, Pusan National University, Miryang, 50463, Republic of Korea
| | - Go-Eun Kim
- Department of Bio-Environmental Energy, Pusan National University, Miryang, 50463, Republic of Korea
| | - Chang-Oh Hong
- Department of Life Science & Environmental Biochemistry, Pusan National University, Miryang, 50463, Republic of Korea
| | - Young-Chae Song
- Department of Environmental Engineering, Korea Maritime and Ocean University, Busan, 49112, Republic of Korea
| | - Won-Ki Lee
- Department of Polymer Engineering, Pukyong National University, Busan, 48547, Republic of Korea
| | - Di Liu
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Laboratory of Advanced Materials, IChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai, 200433, PR China.
| | - Seong-Ho Jang
- Department of Bio-Environmental Energy, Pusan National University, Miryang, 50463, Republic of Korea.
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea.
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25
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Kolli M, Semra S, Benmahdi F, Bouhelassa M, Sardin M. Numerical Modeling of Phenol Adsorption on Granular Activated Carbon Fixed Bed: Comparison of Two Numerical Methods to Solve the Advection-dispersion Equation. CHEMICAL PRODUCT AND PROCESS MODELING 2021. [DOI: 10.1515/cppm-2019-0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This paper presents a comparison between some numerical methods and techniques for solving the nonlinear advection-dispersion equation, which may be used to describe the adsorption of phenol into a granular activated carbon fixed bed under local equilibrium conditions. The adsorption is described by the Langmuir isotherm, which makes the advection-dispersion equation nonlinear. This equation is solved successively by using the approximation and linearization techniques. For each technique, two types of numerical algorithms are used. Concerning the first one, the Implicit and the Runge Kutta schemes are used. As for the second one, the Modified Picard iteration and the Newton Raphson scheme are applied. Simulation results have been compared to each other and to the experimental data as well. Both of the Implicit and the Runge Kutta algorithms have led to superimposed simulated breakthrough curves. Both of the modified Picard and Newton Raphson schemes have given identical results too. However, comparing to the experimental data, the obtained solution, using the approximation technique, has underestimated the retardation of solute and failed in fitting the experimental breakthrough. The Obtained solution, using the linearization technique, has correctly fitted the experimental results under all the conditions of: feed flow rate, activated carbon bed height and the inlet phenol concentration.
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Affiliation(s)
- Mounira Kolli
- Environmental Engineering , University of Constantine 3 , nouvelle ville Ain El Bay , Constantine , Algeria
| | - Safia Semra
- Department of Industrial Chemistry, Faculty of Engineering , University of Constantine , Constantine , Algeria
| | - Fatiha Benmahdi
- Chemistry , University of Hadj Lakhdar Batna , batna 1 university. Algeria , Batna 05000 , Algeria
| | | | - Michel Sardin
- CNRS – Nancy-Université , Villers-lès-Nancy , France
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26
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27
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Liang J, Xu X, Zhong Q, Xu Z, Zhao L, Qiu H, Cao X. Roles of the mineral constituents in sludge-derived biochar in persulfate activation for phenol degradation. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122861. [PMID: 32768814 DOI: 10.1016/j.jhazmat.2020.122861] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Biochar as an environmental-friendly and low-cost catalyst has gained increasing attention in the catalytic degradation of organic pollutants. However, the roles of endogenous mineral constituents in biochar in the catalytic degradation are still unclear. In this study, the mineral-rich biochar produced from sewage sludge at 400 °C (SS400) and 700 °C (SS700) and their corresponding demineralized biochar (DSS400 and DSS700) were used to be the persulfate (PS) activator for phenol degradation. Results showed that the mineral-rich biochar + PS system had negligible phenol degradation (≤12.6 %), whereas distinct degradation of phenol were obtained in the demineralized biochar + PS system where DSS400 + PS and DSS700 + PS exhibited 36.3 % and 57.8 % degradation, respectively. Different minerals in mineral-rich biochar exhibited varying functions on phenol degradation. Mg and K in biochar had less effect on the phenol degradation, while Fe-containing minerals favored the phenol degradation. However, Ca-containing minerals more greatly reduced the formation of hydroxyl radical, resulting in more inhibited degradation of phenol. Thus, the overall degradation of phenol was reduced by the mineral-rich biochar. The findings indicated that the inherent minerals in biochar were not favorable for the phenol degradation, which guides us the application of biochar containing different minerals in the remediation of organic pollutants.
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Affiliation(s)
- Jun Liang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaoyun Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Qijun Zhong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zibo Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ling Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hao Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China; Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environment Protection Institution, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Xinde Cao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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Tran TV, Nong LX, Nguyen HTT, Nguyen VH, Nguyen DTC, Nguyen TT, Trang PQ, Nguyen DH, Nguyen TD. Response surface methodology modeling for methylene blue removal by chemically modified porous carbon: Adsorption mechanism and role of surface functional groups. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1820523] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Thuan Van Tran
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Linh Xuan Nong
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Hong-Tham T. Nguyen
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Vinh Huu Nguyen
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | | | - Thuong Thi Nguyen
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Pham Quynh Trang
- Laboratory of Material and Environment Technology, Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi City, Vietnam
| | - Dai Hai Nguyen
- Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh city, Vietnam
| | - Trinh Duy Nguyen
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
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Elkady M, Shokry H, Hamad H. New Activated Carbon from Mine Coal for Adsorption of Dye in Simulated Water or Multiple Heavy Metals in Real Wastewater. MATERIALS 2020; 13:ma13112498. [PMID: 32486150 PMCID: PMC7321457 DOI: 10.3390/ma13112498] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 01/07/2023]
Abstract
Nano-activated carbon (NAC) prepared from El-Maghara mine coal were modified with nitric acid solution. Their physico-chemical properties were investigated in terms of methylene blue (MB) adsorption, FTIR, and metal adsorption. Upon oxidation of the ACS with nitric acid, surface oxide groups were observed in the FTIR spectra by absorption peaks at 1750–1250 cm−1. The optimum processes parameters include HNO3/AC ratio (wt./wt.) of 20, oxidation time of 2 h, and the concentration of HNO3 of 10% reaching the maximum adsorption capacity of MB dye. Also, the prepared NAC was characterized by SEM, EDX, TEM, Raman Spectroscopy, and BET analyses. The batch adsorption of MB dye from solution was used for monitoring the behavior of the most proper produced NAC. Equilibrium isotherms of MB dye adsorption on NAC materials were acquired and the results discussed in relation to their surface chemistry. Langmuir model recorded the best interpretation of the dye adsorption data. Also, NAC was evaluated for simultaneous adsorption of six different metal ions (Fe2+, Ni2+, Mn2+, Pb2+, Cu2+, and Zn2+) that represented contaminates in petrochemical industrial wastewater. The results indicated that the extracted NAC from El-Maghara mine coal is considered as an efficient low-cost adsorbent material for remediation in both basic dyes and metal ions from the polluted solutions.
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Affiliation(s)
- Marwa Elkady
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Egypt
- Chemical and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City 21934, Egypt
- Correspondence: (M.E.); or (H.H.)
| | - Hassan Shokry
- Electronic Materials Researches Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Egypt;
- Environmental Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City 21934, Egypt
| | - Hesham Hamad
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Egypt
- Correspondence: (M.E.); or (H.H.)
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30
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A Comprehensive review on the hierarchical performances of eco-friendly and functionally advanced modified and recyclable carbon materials. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01900-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Jaria G, Lourenço MA, Silva CP, Ferreira P, Otero M, Calisto V, Esteves VI. Effect of the surface functionalization of a waste-derived activated carbon on pharmaceuticals' adsorption from water. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112098] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Facile fabrication of self-assembled lamellar PANI-GO-Fe3O4 hybrid nanocomposites with enhanced adsorption capacities and easy recyclicity towards ionic dyes. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124147] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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33
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Zhang D, Li Y, Sun A, Tong S, Su G, Jiang X, Li J, Han W, Sun X, Wang L, Shen J. Enhanced nitrobenzene reduction by modified biochar supported sulfidated nano zerovalent iron: Comparison of surface modification methods. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133701. [PMID: 31386958 DOI: 10.1016/j.scitotenv.2019.133701] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/25/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
In our previous study, biochar (BC) supported sulfidated nano zerovalent iron (S-nZVI@BC) was prepared for nitrobenzene (NB) reduction. In this study, in order to further improve the reduction performance of S-nZVI@BC, BC was modified before the loading of S-nZVI through three methods: oxidant (H2O2) pretreatment, alkali (NaOH) pretreatment and acid (HCl) pretreatment. The results indicated that S-nZVI could be evenly distributed onto HCl-BC due to increased surface area, negative surface charge and increased acidic functional groups on HCl-BC. At an initial concentration of 200 mg L-1, NB could be completely removed by S-nZVI@HCl-BC within a reaction time as short as 60 min, indicating rather excellent performance of S-nZVI@HCl-BC. NB reduction performance followed the order: S-nZVI@HCl-BC > S-nZVI@NaOH-BC > S-nZVI@BC > S-nZVI@H2O2-BC. The mass ratio of S-nZVI and HCl-BC was optimized in terms of NB removal efficiency, with 3:1 being identified as the best mass ratio. Furthermore, the mechanism involved in the enhanced NB reduction by S-nZVI@HCl-BC was proposed. This study demonstrated that S-nZVI@HCl-BC is a promising alternative for efficient NB removal from wastewater.
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Affiliation(s)
- Dejin Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yang Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Aiwu Sun
- Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaiyin 223001, Jiangsu Province, China.
| | - Siqi Tong
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Guanyong Su
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xinbai Jiang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jiansheng Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Weiqing Han
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiuyun Sun
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Lianjun Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jinyou Shen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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34
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Activated carbon surface chemistry: Changes upon impregnation with Al(III), Fe(III) and Zn(II)-metal oxide catalyst precursors from NO3− aqueous solutions. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.02.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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35
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Zhou B, Liu W, Gong Y, Dong L, Deng Y. High-performance pseudocapacitors from kraft lignin modified active carbon. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134640] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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36
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Equilibrium, kinetic and thermodynamic studies of removal of phenol from aqueous solution using surface engineered chemistry. Heliyon 2019; 5:e01852. [PMID: 31194060 PMCID: PMC6551471 DOI: 10.1016/j.heliyon.2019.e01852] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 05/02/2019] [Accepted: 05/28/2019] [Indexed: 11/22/2022] Open
Abstract
Iron impregnated activated carbon has been used as a new adsorbent for the adsorptive removal of phenol from waste water. Impregnation of iron was confirmed by Fourier transform infrared spectroscopy and scanning electron microscope and energy dispersive spectroscopy. Different parameters affecting the adsorption capacity of Iron impregnated activated carbon such as Iron impregnated activated carbon dosage, contact time, pH of solution, initial concentration of phenol and agitation speed were optimized. The residual concentration of phenol was determined by UV-Vis spectroscopy. Maximum adsorption efficiency was calculated 98.5% at optimized parameters: concentration of phenol 25 mg L−1, Iron impregnated activated carbon dose 75 mg, pH 7.0 and agitation time 90 min. The experimental data was fitted to different adsorption isotherms and adsorption capacities obtained were 20 and 15 mg g−1, respectively. Adsorption energy was found to be 1.54 kJ mol−1 which predicts that phenol was adsorbed onto the Iron impregnated activated carbon through physisorption.
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37
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Synthesis of activated carbons derived from avocado shells as cathode materials for lithium–sulfur batteries. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0300-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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38
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Benmahdi F, Semra S, Haddad D, Mandin P, Kolli M, Bouhelassa M. Breakthrough Curves Analysis and Statistical Design of Phenol Adsorption on Activated Carbon. Chem Eng Technol 2018. [DOI: 10.1002/ceat.201800402] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fatiha Benmahdi
- University of Batna 1; Faculty of Matter Sciences; route de Biskra 05000 Batna Algeria
| | - Safia Semra
- Ecole Supérieure Nationale Maritime, BP 61; 42415 Tipaza Algeria
| | - Djemal Haddad
- University of Batna 2; Laboratory for the Study of Industrial Energy Systems; 05000 Batna Algeria
| | - Philippe Mandin
- Université de Bretagne Sud (UBS); Institut Universitaire Technologique de LORIENT, Département de Génie Thermique et Energie (GTE); Laboratoire d'Ingénierie des Matériaux de Bretagne (LIMatB); rue Jean Zay 56100 Lorient France
| | - Mounira Kolli
- University of Constantine 3; Faculty of Process Engineering, BP 72; Laboratory of Environmental Processes Engineering; 25000 Constantine Algeria
| | - Mohammed Bouhelassa
- University of Constantine 3; Faculty of Process Engineering, BP 72; Laboratory of Environmental Processes Engineering; 25000 Constantine Algeria
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39
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Yan Y, Ma X, Cao W, Zhang X, Zhou J, Liu Q, Qian G. Identifying the reducing capacity of biomass derived hydrochar with different post-treatment methods. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:486-495. [PMID: 29945084 DOI: 10.1016/j.scitotenv.2018.06.232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 06/03/2018] [Accepted: 06/19/2018] [Indexed: 06/08/2023]
Abstract
In this study, hydrochar was prepared from wheat straw (WS) and Spartina alterniflora (SA) biomass by hydrothermal carbonization, and further treated with HCl and NaOH washing, HNO3 oxidization and low temperature thermal heating. The reducing capacity (RC) of sample was quantified by I2 titration to explore how these modification methods affected the redox properties of hydrochar. The results indicated HNO3 and thermal oxidization increased the RC of hydrochar by 2-5 folds while NaOH washing had the negative effect on samples' RC. By analyzing the excitation-emission matrix (EEM) fluorescence of alkaline extraction solution of sample, humic acid like substances generated from various methods were identified as one of the major sources for electron donating. HNO3 oxidization could significantly increase the RC in hydrochar, which was likely resulting from the generation of alkali-soluble small molecule organic compounds. However, excessive oxidation by nitric acid with prolonged duration led to the gradual decrease in hydrochar's RC. Heating treatment caused a significant increase in the content of redox-active oxygen-containing functional groups and persistent free radicals (PFRs) in hydrochar. Even though both could donate electrons in the redox reaction with I2, the former was considered a greater contributor for the RC of hydrochar. From this study, the origin of RC of hydrochar can be identified as: oxygen-containing functionality, humic-like matter and PFRs. By employing different modification methods, the RC of hydrochar could be tuned by regulating the above sources. This study provided fundamental knowledges and simple routes to manipulate the redox properties of hydrochar for different environmental applications.
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Affiliation(s)
- Yan Yan
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, China
| | - Xianlong Ma
- Electric Power Research Institute of Yunnan Power Grid Co., Ltd, Kunming, Yunnan 650217, China
| | - Weimin Cao
- College of Sciences, Shanghai University, No. 99 Shangda Rd., Shanghai 200444, China.
| | - Xiaolei Zhang
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu 41566, Republic of Korea
| | - Jizhi Zhou
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, China
| | - Qiang Liu
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, China.
| | - Guangren Qian
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, China
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40
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Hu SC, Chen YC, Lin XZ, Shiue A, Huang PH, Chen YC, Chang SM, Tseng CH, Zhou B. Characterization and adsorption capacity of potassium permanganate used to modify activated carbon filter media for indoor formaldehyde removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:28525-28545. [PMID: 30091073 DOI: 10.1007/s11356-018-2681-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 06/27/2018] [Indexed: 06/08/2023]
Abstract
This study examined the effect of potassium permanganate (KMnO4)-modified activated carbon for formaldehyde removal under different face velocities and different initial formaldehyde concentrations in building environment. We chose the coconut shell activated carbon due to their high density and purity. Moreover, they have a clear environmental advantage over coal-based carbons, particularly in terms of acidification potential. The chemical properties were characterized by FTIR to show the functional groups, EDS to calculate each component of their energy bands to know how the ratio is. Also, the morphology of the surface was examined with scanning electron microscopy (SEM). The BET determines specific surface area, pore size, and pore volume. It was found that where the initial formaldehyde concentration and the face velocity are low, adsorption capacity is high. The adsorption isotherms of formaldehyde on modified activated carbon are well fitted by both Langmuir and Freundlich equations. The rate parameter for the pseudo-first-order model, pseudo-second-order model, and intraparticle diffusion model was compared. The correlation coefficient of pseudo-second-order kinetic model (0.999 > R2 > 0.9548) is higher than the coefficient of pseudo-first-order kinetic model (0.5785 < R2 < 0.8755) and intraparticle diffusion model (0.9752 < R2 < 0.9898). Thus, pseudo-second-order kinetic model is more apposite to discuss the adsorption kinetic in this test, and the overall rate of the modified activated carbon adsorption process appears to be influenced by more than one step that is both the intraparticle diffusion model and membrane diffusion.
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Affiliation(s)
- Shih-Cheng Hu
- Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung Hsiao E Road, Taipei, 10608, Taiwan, Republic of China
| | - Ying-Chen Chen
- Department of Molecular Science and Technology, National Taipei University of Technology, Taipei, Taiwan, Republic of China
| | - Xin-Zhi Lin
- Department of HVAC, College of Urban Construction, Nanjing Tech University, Nanjing, China
| | - Angus Shiue
- Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung Hsiao E Road, Taipei, 10608, Taiwan, Republic of China.
| | - Po-Hua Huang
- Institute of Environment Engineering and Management, National Taipei University of Technology, Taipei, Taiwan, Republic of China
| | - Yen-Che Chen
- Department of Molecular Science and Technology, National Taipei University of Technology, Taipei, Taiwan, Republic of China
| | - Shu-Mei Chang
- Department of Molecular Science and Technology, National Taipei University of Technology, Taipei, Taiwan, Republic of China
| | - Chao-Heng Tseng
- Institute of Environment Engineering and Management, National Taipei University of Technology, Taipei, Taiwan, Republic of China
| | - Bin Zhou
- Department of HVAC, College of Urban Construction, Nanjing Tech University, Nanjing, China
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41
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Promotional effects of multiwalled carbon nanotubes on iron catalysts for Fischer-Tropsch to olefins. J Catal 2018. [DOI: 10.1016/j.jcat.2018.05.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Morawa Eblagon K, Pereira M, Figueiredo J. Bifunctional gold catalysts: Relationship between preparation method and catalytic performance in tandem cellobiose valorization. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.03.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Shen C, Zhou W, Yu H, Du L. Ni nanoparticles supported on carbon as efficient catalysts for steam reforming of toluene (model tar). Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2017.03.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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44
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Blandez JF, Navalón S, Álvaro M, García H. N
-Hydroxyphthalimide Anchored on Diamond Nanoparticles as a Selective Heterogeneous Metal-free Oxidation Catalyst of Benzylic Hydrocarbons and Cyclic Alkenes by Molecular O2. ChemCatChem 2017. [DOI: 10.1002/cctc.201700886] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Juan F. Blandez
- Departamento de Química and Instituto de Tecnología Química CSIC-UPV, Consejo Superior de Investigaciones Científicas; Universitat Politécnica de Valencia; Av. de los Naranjos s/n 46022 Valencia Spain
| | - Sergio Navalón
- Departamento de Química and Instituto de Tecnología Química CSIC-UPV, Consejo Superior de Investigaciones Científicas; Universitat Politécnica de Valencia; Av. de los Naranjos s/n 46022 Valencia Spain
| | - Mercedes Álvaro
- Departamento de Química and Instituto de Tecnología Química CSIC-UPV, Consejo Superior de Investigaciones Científicas; Universitat Politécnica de Valencia; Av. de los Naranjos s/n 46022 Valencia Spain
| | - Hermenegildo García
- Departamento de Química and Instituto de Tecnología Química CSIC-UPV, Consejo Superior de Investigaciones Científicas; Universitat Politécnica de Valencia; Av. de los Naranjos s/n 46022 Valencia Spain
- Center of Excellence for Advanced Materials Research; King Abdulaziz University; Jeddah Saudi Arabia
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45
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The use of activated biochar for development of a sensitive electrochemical sensor for determination of methyl parathion. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.06.020] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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46
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Activated biochar: Preparation, characterization and electroanalytical application in an alternative strategy of nickel determination. Anal Chim Acta 2017; 983:103-111. [DOI: 10.1016/j.aca.2017.06.025] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/18/2017] [Accepted: 06/12/2017] [Indexed: 11/24/2022]
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47
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Use of a Fenton-Like Process Based on Nano-Haematite to Treat Synthetic Wastewater Contaminated by Phenol: Process Investigation and Statistical Optimization. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2017. [DOI: 10.1007/s13369-017-2632-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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48
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Xing B, Chen H, Zhang X. Removal of organic phosphorus and formaldehyde in glyphosate wastewater by CWO and the lime-catalyzed formose reaction. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 75:1390-1398. [PMID: 28333054 DOI: 10.2166/wst.2017.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Glyphosate (PMG) wastewater with 40-600 mg/L organic phosphorus (OP) and 1-4% CH2O was treated by catalytic wet oxidation (CWO) and the lime-catalyzed formose reaction to remove total phosphorus (TP) and improve biodegradability. Activated carbons (ACs) modified by H2O2 oxidation and thermal treatment with melamine were used as CWO catalysts and characterized by N2 adsorption/desorption and XPS. The CWO experiments were performed in an autoclave reactor at 110-130 °C and 1.0 MPa. The modified AC showed higher catalytic activity than the parent AC due to the introduction of nitrogen-containing functional groups, exhibited over 90% OP removal for various real PMG wastewaters, and had good stability for 20 consecutive CWO runs. The CWO effluents were further treated by lime at 80 °C to remove TP and CH2O. The treated effluents, containing 0.5-12 mg/L TP and 20-60 mg/L CH2O, showed good biodegradability with a BOD5/COD ratio of 0.31-0.41. The combination of CWO and lime is an effective treatment method prior to biological treatment for solving the problems of OP and CH2O encountered by the glyphosate industry.
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Affiliation(s)
- Bo Xing
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China E-mail: ; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Honglin Chen
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China E-mail:
| | - Xiaoming Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China E-mail:
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49
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Belo CR, Cansado IPDP, Mourão PAM. Synthetic polymers blend used in the production of high activated carbon for pesticides removals from liquid phase. ENVIRONMENTAL TECHNOLOGY 2017; 38:285-296. [PMID: 27189261 DOI: 10.1080/09593330.2016.1190409] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 05/11/2016] [Indexed: 06/05/2023]
Abstract
For the activated carbon (AC) production, we used the most common industrial and consumer solid waste, namely polyethyleneterephthalate (PET), alone or blended with other synthetic polymer such polyacrylonitrile (PAN). By mixing PET, with PAN, an improvement in the yield of the AC production was found and the basic character and some textural and chemical properties were enhanced. The PET-PAN mixture was subjected to carbonisation, with a pyrolysis yield of 31.9%, between that obtained with PET (16.9%) or PAN (42.6%) separately. The AC revealed a high surface area (1400, 1230 and 1117 m2 g-1) and pore volume (0.46, 0.56 and 0.50 cm3 g-1), respectively, for PET, PAN and PET-PAN precursors. Selected ACs were successfully tested for 4-chloro-2-methylphenoxyacetic acid (MCPA) and diuron removal from the liquid phase, showing a higher adsorption capacity (1.7 and 1.2 mmol g-1, respectively, for MCPA and diuron) and good fits with the Langmuir (PET) and Freundlich equation (PAN and PET-PAN blend). With MCPA, the controlling factor to the adsorption capacity was the porous volume and the average pore size. Concerning diuron, the adsorption was controlled essentially by the external diffusion. A remarkable result is the use of different synthetic polymers wastes, as precursors for the production of carbon materials, with high potential application on the pesticides removals from the liquid phase.
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Affiliation(s)
- Cristóvão Ramiro Belo
- a Faculdade de Educação, Artes e Humanidades, Departamento do Ensino de Química , Universidade Nacional Timor Lorosa'e , Rua Jacinto Cândido , Díli , Timor Leste
- b Centro de Química de Évora and Departamento de Química , Instituto de Investigação e Formação Avançada and Escola de Ciências e Tecnologia, Universidade de Évora - Rua Romão Ramalho n°59 , Évora , Portugal
| | - Isabel Pestana da Paixão Cansado
- b Centro de Química de Évora and Departamento de Química , Instituto de Investigação e Formação Avançada and Escola de Ciências e Tecnologia, Universidade de Évora - Rua Romão Ramalho n°59 , Évora , Portugal
| | - Paulo Alexandre Mira Mourão
- b Centro de Química de Évora and Departamento de Química , Instituto de Investigação e Formação Avançada and Escola de Ciências e Tecnologia, Universidade de Évora - Rua Romão Ramalho n°59 , Évora , Portugal
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Afsharnia M, Saeidi M, Zarei A, Narooie MR, Biglari H. Phenol Removal from Aqueous Environment by Adsorption onto Pomegranate Peel Carbon. Electron Physician 2017; 8:3248-3256. [PMID: 28070259 PMCID: PMC5217818 DOI: 10.19082/3248] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 09/19/2016] [Indexed: 12/07/2022] Open
Abstract
Introduction Phenol and its derivatives are the most common poisonous compounds which are stable in aqueous media and lead to many health issues. In this study, application of the carbon resulted from pomegranate peel is investigated in removal of phenol by adsorption method. Methods to perform this cross-sectional study, first, samples of phenol with concentrations of 10 to 100 mg/L were prepared for six months in 2016. Then, the impacts of parameters such as pH, adsorbent dosage, contact time, and initial concentration of phenol in adsorption process were investigated independently in Gonabad Chemistry Lab using a spectrophotometer at 505 nm as the wavelength. Furthermore, adherence of the samples to the isotherm models of Langmuir and Freundlich was determined by Excel 2016 and descriptive statistical methods were then reported. Results The obtained results demonstrated a maximum adsorption capacity (ash) of 148.38 mgg-1 at pH 7, initial concentration of 100 mg L−1, and temperature of 23 ± 2 °C. The phenol removal rate was found to correlate directly to the adsorbent dosage and contact time, and inversely to the initial concentration of phenol. In addition, the investigations showed that the adsorption of phenol on the pomegranate peel ash follows the Freundlich model well with a correlation coefficient of R2 0.9056. Conclusion Pomegranate peel ash could be used as an efficient and low-cost adsorbent for phenol removal from aqueous media.
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Affiliation(s)
- Mojtaba Afsharnia
- Ph.D. of Environmental Health, Assistant Professor, Department of Environmental Health Engineering, School of Public Health, Social Development & Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Mahdi Saeidi
- M.Sc. of Environmental Health, Instructor, Department of Environmental Health Engineering, School of Public Health, Torbat Heydarieh University of Medical Sciences, Torbat Heydarieh, Iran
| | - Amin Zarei
- M.Sc. of Environmental Health, Senior Lecturer, Department of Environmental Health Engineering, School of Public Health, Mashhad University of Medical Science, Mashhad, Iran
| | - Mohammad Reza Narooie
- M.Sc. of Environmental Health, Senior Lecturer, Department of Environmental Health Engineering, School of Public Health, Iranshar University of Medical Sciences, Iranshar, Iran
| | - Hamed Biglari
- M.Sc. of Environmental Health, Senior Lecturer, Department of Environmental Health Engineering, School of Public Health, Social Development & Health Promotion Research Center, Gonabad University of Medical Science, Gonabad, Iran
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