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Nizeyimana JC, Ndagijimana P, Khan J, Xiangru L, Twagirayezu G, Manzi HP, Irumva O, Yu CP, Hu A, Lin S. A hybrid system for Nickel ions removal from synthesized wastewater using adsorption assisted with electrocoagulation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:28321-28340. [PMID: 38538998 DOI: 10.1007/s11356-024-33082-7] [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: 11/26/2023] [Accepted: 03/21/2024] [Indexed: 04/30/2024]
Abstract
The presence of heavy metal ions in water environments has raised significant concerns, necessitating practical solutions for their complete removal. In this study, a combination of adsorption and electrocoagulation (ADS + EC) techniques was introduced as an efficient approach for removing high concentrations of nickel ions (Ni2+) from aqueous solutions, employing low-cost sunflower seed shell biochar (SSSB). The combined techniques demonstrated superior removal efficiency compared to individual methods. The synthesized SSSB was characterized using SEM, FT-IR, XRD, N2-adsorption-desorption isotherms, XPS, and TEM. Batch processes were optimized by investigating pH, adsorbent dosage, initial nickel concentration, electrode effects, and current density. An aluminum (Al) electrode electrocoagulated particles and removed residual Ni2+ after adsorption. Kinetic and isotherm models examined Ni2+ adsorption and electrocoagulation coupling with SSSB-based adsorbent. The results indicated that the kinetic data fit well with a pseudo-second-order model, while the experimental equilibrium adsorption data conformed to a Langmuir isotherm under optimized conditions. The maximum adsorption capacity of the activated sunflower seed shell was determined to be 44.247 mg.g-1. The highest nickel ion removal efficiency of 99.98% was observed at initial pH values of 6.0 for ADS and 4.0 for ADS/EC; initial Ni2+ concentrations of 30.0 mg/L and 1.5 g/L of SSSB; initial current densities of 0.59 mA/cm2 and 1.32 kWh/m3 were also found to be optimal. The mechanisms involved in the removal of Ni2+ from wastewater were also examined in this research. These findings suggest that the adsorption-assisted electrocoagulation technique has a remarkable capacity for the cost-effective removal of heavy metals from various wastewater sources.
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Affiliation(s)
- Jean Claude Nizeyimana
- School of Environment Northeast, Normal University, Changchun, 130117, China
- CAS Key Laboratory of Urban Pollutant Conversion of Urban Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 136102, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | | | - Junaid Khan
- School of Environment Northeast, Normal University, Changchun, 130117, China
| | - Liu Xiangru
- School of Environment Northeast, Normal University, Changchun, 130117, China
| | - Gratien Twagirayezu
- University of Chinese Academy of Sciences, Beijing, 100049, China
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, Guizhou, China
| | - Habasi Patrick Manzi
- CAS Key Laboratory of Urban Pollutant Conversion of Urban Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 136102, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Olivier Irumva
- School of Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Chang-Ping Yu
- CAS Key Laboratory of Urban Pollutant Conversion of Urban Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 136102, China
| | - Anyi Hu
- CAS Key Laboratory of Urban Pollutant Conversion of Urban Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 136102, China
| | - Shanshan Lin
- School of Environment Northeast, Normal University, Changchun, 130117, China.
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Zhu D, Zhu J, Li P, Lan S. Effects of magnesium hydroxide morphology on Pb(ii) removal from aqueous solutions. RSC Adv 2024; 14:7329-7337. [PMID: 38433932 PMCID: PMC10905668 DOI: 10.1039/d3ra08040d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/28/2024] [Indexed: 03/05/2024] Open
Abstract
In this study, magnesium hydroxide (MH) particles with distinct morphologies were obtained through direct precipitation and subsequent hydrothermal treatment with various magnesium salts. The synthesized products were systematically characterized and utilized for the removal of Pb(ii) ions from aqueous solutions. The adsorption process of Pb(ii) by two different MH structures, namely flower globular magnesium hydroxide (FGMH) and hexagonal plate magnesium hydroxide (HPMH), adhered to the Langmuir isotherm and pseudo-second-order model. FGMH exhibited higher Pb(ii) removal capacity (2612 mg g-1) than HPMH (1431 mg g-1), attributable to the unique three-dimensional layered structures of FGMH that provide a larger surface area and abundant active sites. Additionally, metallic Pb was obtained by recycling the adsorbed Pb(ii) through acid dissolution-electrolysis. Furthermore, Pb(ii) removal mechanisms were investigated by analyzing adsorption kinetics and isotherms, and the adsorbed products were characterized. Based on the findings, the removal process occurs in two key stages. First, Pb(ii) ions bind with OH- ions on the surface upon diffusing to the MH surface, resulting in Pb(OH)2 deposits in situ. Concurrently, Mg(ii) ions diffuse into the solution, substituting Pb(ii) ions in the MH lattice. Second, the resultant Pb(OH)2, which is unstable, reacts with CO2 dissolved in water to yield Pb3(CO3)2(OH)2. Therefore, owing to its outstanding Pb(ii) adsorption performance and simple preparation method, FGMH is a promising solution for Pb(ii) pollution.
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Affiliation(s)
- Donghai Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Jiachen Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Ping Li
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Shengjie Lan
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
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Li D, Li Y, He S, Hu T, Li H, Wang J, Zhang Z, Zhang Y. Resourcization of Argillaceous Limestone with Mn 3O 4 Modification for Efficient Adsorption of Lead, Copper, and Nickel. TOXICS 2024; 12:72. [PMID: 38251027 PMCID: PMC10820775 DOI: 10.3390/toxics12010072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/05/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024]
Abstract
Argillaceous limestone (AL) is comprised of carbonate minerals and clay minerals and is widely distributed throughout the Earth's crust. However, owing to its low surface area and poorly active sites, AL has been largely neglected. Herein, manganic manganous oxide (Mn3O4) was used to modify AL by an in-situ deposition strategy through manganese chloride and alkali stepwise treatment to improve the surface area of AL and enable its utilization as an efficient adsorbent for heavy metals removal. The surface area and cation exchange capacity (CEC) were enhanced from 3.49 to 24.5 m2/g and 5.87 to 31.5 cmoL(+)/kg with modification, respectively. The maximum adsorption capacities of lead (Pb2+), copper (Cu2+), and nickel (Ni2+) ions on Mn3O4-modified argillaceous limestone (Mn3O4-AL) in mono-metal systems were 148.73, 41.30, and 60.87 mg/g, respectively. In addition, the adsorption selectivity in multi-metal systems was Pb2+ > Cu2+ > Ni2+ in order. The adsorption process conforms to the pseudo-second-order model. In the multi-metal system, the adsorption reaches equilibrium at about 360 min. The adsorption mechanisms may involve ion exchange, precipitation, electrostatic interaction, and complexation by hydroxyl groups. These results demonstrate that Mn3O4 modification realized argillaceous limestone resourcization as an ideal adsorbent. Mn3O4-modified argillaceous limestone was promising for heavy metal-polluted water and soil treatment.
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Affiliation(s)
- Deyun Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (D.L.); (Y.L.); (H.L.)
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; (T.H.); (J.W.); (Z.Z.)
| | - Yongtao Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (D.L.); (Y.L.); (H.L.)
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; (T.H.); (J.W.); (Z.Z.)
| | - Shuran He
- College of Resource and Environment, Yunnan Agricultural University, Kunming 650201, China;
| | - Tian Hu
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; (T.H.); (J.W.); (Z.Z.)
| | - Hanhao Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (D.L.); (Y.L.); (H.L.)
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; (T.H.); (J.W.); (Z.Z.)
| | - Jinjin Wang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; (T.H.); (J.W.); (Z.Z.)
| | - Zhen Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; (T.H.); (J.W.); (Z.Z.)
| | - Yulong Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; (T.H.); (J.W.); (Z.Z.)
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Zhang L, Li B, Shao P, Zhou X, Li D, Hu Z, Dong H, Yang L, Shi H, Luo X. Selective capture of palladium from acid wastewater by thiazole-modified activated carbon: Performance and mechanism. ENVIRONMENTAL RESEARCH 2023; 238:117253. [PMID: 37778599 DOI: 10.1016/j.envres.2023.117253] [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: 07/12/2023] [Revised: 09/07/2023] [Accepted: 09/19/2023] [Indexed: 10/03/2023]
Abstract
As a kind of scarce metal, palladium is widely used in many chemical industries. It essential to recover palladium from secondary resources, especially acidic media, owing to high content of palladium in secondary wastes and widespread extraction of palladium via strong acids. Chemically modified carbon materials not only have the advantage of activated carbon but also achieve the precise removal of specific pollutants, which is a kind of adsorption material with broad application prospects. In this direction, we report a solid carbon material named AT-C, which is obtained by one-step synthesis of 2-aminothiazoles grafted to the carbon surface by amidation. The present adsorbent delivers a high palladium adsorption capacity of 178.9 mg g-1, and desirable thermal and chemical stability. The uniform presence of abundant sulfur atoms and CO in the porous network enables AT-C to achieve selective absorption and rapid adsorption kinetics of Pd2+ in the complex water mixture containing many competing ions in the acidic pH range. For the strongly acidic leachates of catalysts, AT-C exhibits outstanding stability in cyclic experiments. Meanwhile, the fixed-bed column test indicates that 1076 bed volumes of the feeding streams can be effectively treated. In addition, AT-C exhibits superior adsorption selectivity, and the recovery efficiency of Pd2+ in actual industrial wastewater is 96.6%. This work realizes an efficient, rapid, and selective removal of palladium under acidic conditions, and provides a reference for complex industrial water treatment and resource recovery of precious metals.
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Affiliation(s)
- Li Zhang
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Bo Li
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Penghui Shao
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China.
| | - Xiaoyu Zhou
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Dewei Li
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Zichao Hu
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Hao Dong
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Liming Yang
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Hui Shi
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China
| | - Xubiao Luo
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China; College of Life Science, Jinggangshan University, Ji'an, 343009, PR China.
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5
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Zhu J, Li P, Yang B, Lan S, Chen W, Zhu D. Facile fabrication of Fe 3O 4@Mg(OH) 2 magnetic composites and their application in Cu(ii) ion removal. RSC Adv 2023; 13:33403-33412. [PMID: 38025863 PMCID: PMC10644123 DOI: 10.1039/d3ra05961h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/08/2023] [Indexed: 12/01/2023] Open
Abstract
In this study, we fabricated magnetic Fe3O4@Mg(OH)2 composites through the seed deposition technique to achieve Cu(ii) ion removal from aqueous solutions. As indicated by the characterization results, three-dimensional flower-like spheres composed of external Mg(OH)2 were formed, with nano-Fe3O4 particles uniformly embedded in the "flower petals" of the spheres. The efficacy of Fe3O4@Mg(OH)2-3 in Cu(ii) ion removal was examined through batch experiments. The impact of solution pH on removal efficiency was examined, and the pseudo-second-order model and the Langmuir model provided good fits to the adsorption kinetics and isotherm data, respectively. Remarkably, Fe3O4@Mg(OH)2-3 exhibited a significant removal capacity of 1051.65 mg g-1 for Cu(ii) ions. Additionally, the composite displayed a notable saturation magnetization value of 17.3 emu g-1, facilitating isolation from sample solutions through external magnetic fields after Cu(ii) ion absorption. At the solid-liquid interface, a mechanism involving ion exchange between Mg(ii) and Cu(ii) cations was realized as the mode of Cu(ii) ion removal. The composites' effective adsorption properties and rapid magnetic separation highlighted their suitability for use in treating copper-contaminated water.
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Affiliation(s)
- Jiachen Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Ping Li
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Bowen Yang
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Shengjie Lan
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Weiyuan Chen
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Donghai Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
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Min Y, Wang Z, Su J, Ali A, Huang T, Yang W. Simultaneous removal of ammonia nitrogen, recovery of phosphate, and immobilization of nickel in a polyester fiber with shell powder and iron carbon spheres bioreactor: Optimization and pathways mechanism. ENVIRONMENTAL RESEARCH 2023; 224:115476. [PMID: 36805352 DOI: 10.1016/j.envres.2023.115476] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Composite pollutants are prevalent in wastewater, whereas, the simultaneous accomplishment of efficient nitrogen removal and resources recovery remains a challenge. In this study, a bioreactor was constructed to contain Pseudomonas sp. Y1 using polyester fiber wrapped with shell powder and iron carbon spheres, achieving ammonia nitrogen (NH4+-N) removal, phosphate (PO43--P) recovery, and nickel (Ni2+) immobilization. The optimal performance of bioreactor was average removal efficiencies of NH4+-N, PO43--P, calcium (Ca2+), and Ni2+ as 82.42, 96.67, 76.13, and 98.29% at a hydraulic retention time (HRT) of 6 h, pH of 7.0, and influent Ca2+ and Ni2+ concentrations of 100.0 and 3.0 mg L-1, respectively. The bioreactor could remove PO43--P, Ca2+, and Ni2+ by biomineralization, co-precipitation, adsorption, and lattice substitution. Moreover, microbial community analysis suggested that Pseudomonas was the predominant genus and had possessed tolerance to Ni2+ toxicity in wastewater. This study presented an effective method to synchronously remove NH4+-N, recover PO43--P, and fix heavy metals through microbially induced carbonate precipitation (MICP) and heterotrophic nitrification and aerobic denitrification (HNAD) technology.
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Affiliation(s)
- Yitian Min
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Zhao Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Junfeng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
| | - Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
| | - Tinglin Huang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Wenshuo Yang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
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Khan K, Tareen AK, Iqbal M, Ye Z, Xie Z, Mahmood A, Mahmood N, Zhang H. Recent Progress in Emerging Novel MXenes Based Materials and their Fascinating Sensing Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206147. [PMID: 36755364 DOI: 10.1002/smll.202206147] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/28/2022] [Indexed: 05/11/2023]
Abstract
Early transition metals based 2D carbides, nitrides and carbonitrides nanomaterials are known as MXenes, a novel and extensive new class of 2D materials family. Since the first accidently synthesis based discovery of Ti3 C2 in 2011, more than 50 additional compositions have been experimentally reported, including at least eight distinct synthesis methods and also more than 100 stoichiometries are theoretically studied. Due to its distinctive surface chemistry, graphene like shape, metallic conductivity, high hydrophilicity, outstanding mechanical and thermal properties, redox capacity and affordable with mass-produced nature, this diverse MXenes are of tremendous scientific and technological significance. In this review, first we'll come across the MXene based nanomaterials possible synthesis methods, their advantages, limitations and future suggestions, new chemistry related to their selected properties and potential sensing applications, which will help us to explain why this family is growing very fast as compared to other 2D families. Secondly, problems that help to further improve commercialization of the MXene nanomaterials based sensors are examined, and many advances in the commercializing of the MXene nanomaterials based sensors are proposed. At the end, we'll go through the current challenges, limitations and future suggestions.
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Affiliation(s)
- Karim Khan
- School of Electrical Engineering & Intelligentization, Dongguan University of Technology, Dongguan, 523808, China
- Shenzhen Nuoan Environmental & Safety Inc., Shenzhen, 518107, P. R. China
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Ayesha Khan Tareen
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, 523808, China
| | - Muhammad Iqbal
- Department of BioChemistry, Quaid-i-Azam University, Islamabad, 45320, Islamic Republic of Pakistan
| | - Zhang Ye
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Zhongjian Xie
- Shenzhen International Institute for Biomedical Research, Shenzhen, Guangdong, 518116, China
| | - Asif Mahmood
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, 2006, Australia
| | - Nasir Mahmood
- School of Science, The Royal Melbourne Institute of Technology University, Melbourne, Victoria, VIC 3001, Australia
| | - Han Zhang
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Engineering, Shenzhen University, Shenzhen, 518060, China
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Zhang M, Zhou Y, Yang X, Lu X, Zhao X, Chen Z, Duan W, Li J, Zhao M, Yin Q. Preparation of esterified biomass waste hydrogels and their removal of Pb 2+, Cu 2+ and Cd 2+ from aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:56580-56593. [PMID: 36920603 DOI: 10.1007/s11356-023-26350-5] [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: 09/29/2022] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
The treatment of polluted water is a serious environmental problem in the world. Biomass is easily modified and can be prepared into adsorbent materials, which is expected to solve the problem of heavy metal ion adsorption in sewage. In this paper, esterified tobacco straw based hydrogels (ETS-PAA) were synthesized from waste tobacco straw biomass. The structure and thermal stability of these hydrogels were characterized by FTIR, SEM, EDS, XPS and TG. The adsorption of metal ions by the hydrogel was measured by ICP-MS. The effects of initial ion concentration, adsorption time, pH, and temperature on the heavy metal adsorption were investigated. The results showed that ETS-PAA possessed more pores, which led to a better adsorption capacity. The maximum adsorption amounts of Pb2+, Cu2+ and Cd2+ were 2.41 mmol·g-1, 1.93 mmol·g-1 and 1.77 mmol·g-1, respectively. Finally, the adsorption mechanism and kinetics were analyzed. The adsorption was mainly accomplished by ion exchange of -COOK on the monomer chain with heavy metal ions, coordination of -OH and -CONH with heavy metal ions and interaction of ester bond, -COOH with heavy metal ions. The adsorption process was in accordance with the pseudo-second-order kinetic model and Freundlich model. The adsorption process belonged to multilayer chemisorption. This work shows that ETS-PAA was a promising material for the removal of heavy metal pollutants from aqueous solution.
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Affiliation(s)
- Mingyue Zhang
- College of Tobacco Science, Flavors & Fragrance Engineering & Technology Research Center of Henan, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Yaru Zhou
- College of Tobacco Science, Flavors & Fragrance Engineering & Technology Research Center of Henan, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xinling Yang
- China Tobacco Henan Industrial Co., Ltd., Zhengzhou, 450000, China
| | - Xiaochong Lu
- College of Tobacco Science, Flavors & Fragrance Engineering & Technology Research Center of Henan, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xu Zhao
- China Tobacco Henan Industrial Co., Ltd., Zhengzhou, 450000, China
| | - Zeshao Chen
- China Tobacco Henan Industrial Co., Ltd., Zhengzhou, 450000, China
| | - Weidong Duan
- China Tobacco Henan Industrial Co., Ltd., Zhengzhou, 450000, China
| | - Junfeng Li
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Mingqin Zhao
- College of Tobacco Science, Flavors & Fragrance Engineering & Technology Research Center of Henan, Henan Agricultural University, Zhengzhou, 450002, China
| | - Quanyu Yin
- College of Tobacco Science, Flavors & Fragrance Engineering & Technology Research Center of Henan, Henan Agricultural University, Zhengzhou, 450002, China
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Jiang D, Chen H, Xie H, Cheng K, Li L, Xie K, Wang Y. Fe, N, S co-doped cellulose paper carbon fibers as an air-cathode catalyst for microbial fuel cells. ENVIRONMENTAL RESEARCH 2023; 221:115308. [PMID: 36646199 DOI: 10.1016/j.envres.2023.115308] [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: 11/30/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 06/17/2023]
Abstract
The heteroatoms and transition metal co-doped carbon-based catalysts are an important way to improve the catalytic activity of oxygen reduction reaction (ORR). Herein, we reported a facile method to obtain iron, nitrogen, and sulfur co-doped cellulose paper carbon fibers as catalysts (Fe-N-S/CFs) for ORR in microbial fuel cells (MFCs) with the adsorption recovery of Congo red molecules from dye wastewater. The thermal treatment promoted the etching of carbon surface by ferric ions, resulting in increased surface roughness for forming the defective carbon structure. The rich active species and defective carbon formed on the etched surface to enhance the electroactive surface area and effective sites. Fe-N-S/CFs catalysts achieved high half-wave potential due to the synergy effect between chemical components and defect structures. The assembled single-chamber air cathode MFC gained a high maximum power density of 1773 ± 40 mW m-2 versus Pt/C MFC of 1325 ± 94 mW m-2. This work provides a strategy for recovering dye molecules from wastewater to prepare non-precious metal catalysts for enhancing ORR activity.
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Affiliation(s)
- Demin Jiang
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China; School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing, 404100, China
| | - Huina Chen
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Hao Xie
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Kai Cheng
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Liang Li
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Kun Xie
- School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing, 404100, China
| | - Yuqiao Wang
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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Wang D, Wang R, Peng W, Wang Y, Zhang N, Duan Y, Wang S, Liu L. Adsorption of Cu(
II
) in aqueous solution by sodium dodecyl benzene sulfonate‐modified montmorillonite. J CHIN CHEM SOC-TAIP 2023. [DOI: 10.1002/jccs.202200507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Danqi Wang
- School of Chemistry and Chemical Engineering Shihezi University Shihezi China
| | - Ruicong Wang
- School of Chemistry and Chemical Engineering Shihezi University Shihezi China
| | - Wencai Peng
- School of Chemistry and Chemical Engineering Shihezi University Shihezi China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi China
| | - Yi Wang
- School of Chemistry and Chemical Engineering Shihezi University Shihezi China
| | - Na Zhang
- School of Chemistry and Chemical Engineering Shihezi University Shihezi China
| | - Yanan Duan
- School of Chemistry and Chemical Engineering Shihezi University Shihezi China
| | - Shiqin Wang
- School of Chemistry and Chemical Engineering Shihezi University Shihezi China
| | - Linye Liu
- School of Chemistry and Chemical Engineering Shihezi University Shihezi China
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11
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Khaleghi H, Jaafarzadeh N, Esmaeili H, Ramavandi B. Alginate@Fe 3O 4@Bentonite nanocomposite for formaldehyde removal from synthetic and real effluent: optimization by central composite design. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:29566-29580. [PMID: 36417060 DOI: 10.1007/s11356-022-24189-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
In this study, Alginate@ Fe3O4/Bentonite nanocomposite was utilized to eliminate formaldehyde from wastewater. Structural features of bentonite, bentonite@Fe3O4, and Alginate@Fe3O4@Bentonite were determined using FT-IR, PXRD, Mapping, EDX, TEM, SEM, VSM, and BET analyses. The central composite design method was employed to find the optimal conditions for formaldehyde removal using Alg@Fe3O4@Bent nanocomposite. The maximum formaldehyde uptake efficiency (94.56%) was obtained at formaldehyde concentration of 10.69 ppm, the nanocomposite dose of 1.28 g/L, and pH of 9.96 after 16.53 min. Also, Alginate@Fe3O4@Bentonite composite was used to eliminate formaldehyde from Razi petrochemical wastewater and was able to eliminate 91.24% of formaldehyde, 70% of COD, and 68.9% of BOD5. The isotherm and kinetic investigations demonstrated that the formaldehyde uptake process by the foresaid adsorbent follows the Langmuir isotherm and quasi-first-order kinetic models, respectively. Also, the maximum uptake capacity was obtained at 50.25 mg/g. Moreover, the formaldehyde uptake process by the aforementioned nanocomposite was exothermic and spontaneous. Furthermore, the formaldehyde adsorption efficiency decreased slightly after six reuse cycles (less than 10%), indicating that Alginate@Fe3O4@Bentonite nanocomposite has remarkable recyclability. Besides, the influence of interfering ions like nitrate, carbonate, chloride, phosphate, and sulfate was studied on the formaldehyde removal efficiency and the results displayed that all ions except nitrate ion have low interaction with formaldehyde (less than 3% reduction in removal efficiency).
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Affiliation(s)
- Hossein Khaleghi
- Department of Environment, Bushehr Branch, Islamic Azad University, Bushehr, Iran
| | - Neamatollah Jaafarzadeh
- Department of Environment, Bushehr Branch, Islamic Azad University, Bushehr, Iran
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hossein Esmaeili
- Department of Chemical Engineering, Bushehr Branch, Islamic Azad University, Bushehr, Iran.
| | - Bahman Ramavandi
- Department of Environment, Bushehr Branch, Islamic Azad University, Bushehr, Iran
- Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
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12
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Wang B, Lan J, Bo C, Gong B, Ou J. Adsorption of heavy metal onto biomass-derived activated carbon: review. RSC Adv 2023; 13:4275-4302. [PMID: 36760304 PMCID: PMC9891085 DOI: 10.1039/d2ra07911a] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
Due to the rapid development of the social economy and the massive increase in population, human beings continue to undertake processing, and commercial manufacturing activities of heavy metals, which has caused serious damage to the environment and human health. Heavy metals lead to serious environmental problems such as soil contamination and water pollution. Human health and the living environment are closely affected by the handling of heavy metals. Researchers must find several simple, economical and practical methods to adsorb heavy metals. Adsorption technology has been recognized as an efficient and economic strategy, exhibiting the advantages of recovering and reusing adsorbents. Biomass-derived activated carbon adsorbents offer large adjustable specific surface area, hierarchically porous structure, strong adsorption capacity, and excellent high economic applicability. This paper focuses on reviewing the preparation methods of biomass-derived activated carbon in the past five years. The application of representative biomass-derived activated carbon in the adsorption of heavy metals preferentially was described to optimize the critical parameters of the activation type of samples and process conditions. The key factors of the adsorbent, the physicochemical properties of the heavy metals, and the adsorption conditions affecting the adsorption of heavy metals are highlighted. In addition, the challenges faced by biomass-derived activated carbon are also discussed.
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Affiliation(s)
- Baoying Wang
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University Yinchuan 750021 PR China
| | - Jingming Lan
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University Yinchuan 750021 PR China
| | - Chunmiao Bo
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University Yinchuan 750021 PR China
| | - Bolin Gong
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University Yinchuan 750021 PR China
| | - Junjie Ou
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University Yinchuan 750021 PR China .,CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China .,University of Chinese Academy of Sciences Beijing 100049 China
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13
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Sun B, Chen W, Zhang H, Elmarakbi A, Fu YQ. Li2Si2O5 Nano-brush Coated Carbon Cloth as a Potential Solution for Wastewater Treatment. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.123085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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14
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Liu Y, Zhang T, Wang B, Hu J. Preparation of environment-friendly SiO 2 aerogel based on waste boron mud and its adsorption behavior for toluene. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:469-491. [PMID: 36706294 DOI: 10.2166/wst.2023.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
To mitigate the environmental hazards of boron mud waste accumulation, we prepared environmental-friendly SiO2 aerogels by extracting them through alkaline leaching treatment and optimized the experimental conditions. The optimum process parameters for alkaline leaching solution NaOH concentration, leaching temperature, solid-to-liquid ratio, and leaching time were 2 mol/L, 95 °C, 1:4, and 3 h, respectively. In this work, cheap and non-toxic hydroxy silicone oil (PDMS-OH) and hydrogen-containing silicone oil (PMHS) were used as surface modifiers instead of toxic and expensive trimethylchlorosilane (TMCS) in the SiO2 aerogel modification process. The best performance under the optimum conditions was achieved with 60% PDMS-OH-modified SiO2 aerogel. Organic liquid spills, represented by toluene, pose a great danger to the environment and water bodies. We treated free toluene on the water surface with the aerogel mentioned above and its adsorption capacity was up to 2,655 mg/g. After the adsorption of toluene, the aerogels coalesced into agglomerates for subsequent collection and handling. Furthermore, after five repeated applications, the adsorption capacity remained at 91.43% of the initial application. Overall, this research provided an inexpensive and simple solution for the treatment of organic liquids in wastewater.
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Affiliation(s)
- Yue Liu
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, P. R. China
| | - Tonglu Zhang
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, P. R. China
| | - Bai Wang
- Shengyang Fire Science and Technology Research Institute of MEM, Shenyang 110034, P. R. China E-mail: ; ; National Engineering Laboratory for Fire and Emergency Rescue, Shenyang 110034, P. R. China
| | - Jianshe Hu
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, P. R. China
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15
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Zahedinejad M, Sohrabi N, Mohammadi R. Magnetic multi-walled carbon nanotubes as an efficient sorbent for pirimicarb removal from aqueous solutions in continuous (FBAC) and batch formats: thermodynamic, kinetic, isotherm study, optimization and modeling by RSM-ANN. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2022.120915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Synthesis and application of a thiol functionalized clay for borewell water purification: Microchemical characteristics and adsorption studies. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.11.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Synergistic adsorption of U(VI) from seawater by MXene and amidoxime mixed matrix membrane with high efficiency. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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18
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Priya AK, Gnanasekaran L, Dutta K, Rajendran S, Balakrishnan D, Soto-Moscoso M. Biosorption of heavy metals by microorganisms: Evaluation of different underlying mechanisms. CHEMOSPHERE 2022; 307:135957. [PMID: 35985378 DOI: 10.1016/j.chemosphere.2022.135957] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/17/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Globally, ecotoxicologists, environmental biologists, biochemists, pathologists, and other experts are concerned about environmental contamination. Numerous pollutants, such as harmful heavy metals and emerging hazardous chemicals, are pervasive sources of water pollution. Water pollution and sustainable development have several eradication strategies proposed and used. Biosorption is a low-cost, easy-to-use, profitable, and efficient method of removing pollutants from water resources. Microorganisms are effective biosorbents, and their biosorption efficacy varies based on several aspects, such as ambient factors, sorbing materials, and metals to be removed. Microbial culture survival is also important. Biofilm agglomerates play an important function in metal uptake by extracellular polymeric molecules from water resources. This study investigates the occurrence of heavy metals, their removal by biosorption techniques, and the influence of variables such as those indicated above on biosorption performance. Ion exchange, complexation, precipitation, and physical adsorption are all components of biosorption. Between 20 and 35 °C is the optimal temperature range for biosorption efficiency from water resources. Utilizing living microorganisms that interact with the active functional groups found in the water contaminants might increase biosorption efficiency. This article discusses the negative impacts of microorganisms on living things and provides an outline of how they affect the elimination of heavy metals.
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Affiliation(s)
- A K Priya
- Department of Chemical Engineering, KPR Institute of Engineering and Technology, Coimbatore, 641027, India
| | - Lalitha Gnanasekaran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile.
| | - Kingshuk Dutta
- Advanced Polymer Design and Development Research Laboratory (APDDRL), School for Advanced Research in Petrochemicals (SARP), Central Institute of Petrochemicals Engineering and Technology (CIPET), Bengaluru, 562149, India
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile; Saveetha School of Engineering, Saveetha Institute of Medical and Technical Science, Chennai, 60210, India
| | - Deepanraj Balakrishnan
- College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia
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19
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Drouin M, Parravicini G, Nasser S, Moulin P. Membrane Separation Used as Treatment of Alkaline Wastewater from a Maritime Scrubber Unit. MEMBRANES 2022; 12:968. [PMID: 36295727 PMCID: PMC9609664 DOI: 10.3390/membranes12100968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/19/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Since 1 January 2020, the sulfur content allowed in exhaust gas plume generated by marine vessels decreased to 0.5% m/m. To be compliant, a hybrid scrubber was installed on-board, working in closed loop and generating a high volume of alkaline wastewater. The alkaline water suspension was treated by a silicon carbide multitubular membrane to remove pollutants, and to allow the water discharge into the natural environment. In this paper, membrane filtration behavior was analyzed for the maritime scrubber wastewater. A range of operating parameters were obtained for several feedwater quality-respecting industrial constraints. The objective was an improvement of (I) the water recovery rate, (II) the filtration duration, and (III) the permeate quality. Thus, in high-fouling water, a low permeate flow (60 L h-1 m-2) with frequent backflushing (every 20 min) was used to maintain membrane performance over time. In terms of water quality, the suspended solids and heavy metals were retained at more than 99% and 90%, respectively. Other seawater discharge criteria in terms of suspended solids concentration, pH, and polyaromatic hydrocarbons were validated. The recommended operating conditions from laboratory study at semi-industrial scale were then implemented on a vessel in real navigation conditions with results in agreement with expectations.
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Affiliation(s)
- Maryse Drouin
- Aix Marseille Univ, Centrale Marseille, CNRS, M2P2, EPM, 13331 Marseille, France
| | - Giulia Parravicini
- Aix Marseille Univ, Centrale Marseille, CNRS, M2P2, EPM, 13331 Marseille, France
| | - Samy Nasser
- CMA Ships, Boulevard Jacques SAADE, 4 Quai d’Arenc, CEDEX 02, 13235 Marseille, France
| | - Philippe Moulin
- Aix Marseille Univ, Centrale Marseille, CNRS, M2P2, EPM, 13331 Marseille, France
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20
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Hyperbranched polyamidoamine-chitosan polyelectrolyte gels crosslinking by polyacrylic acid and alginate for removal of anionic dyes. Int J Biol Macromol 2022; 222:3024-3033. [DOI: 10.1016/j.ijbiomac.2022.10.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 10/04/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
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21
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Nayeri D, Mousavi SA. A comprehensive review on the coagulant recovery and reuse from drinking water treatment sludge. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115649. [PMID: 35834847 DOI: 10.1016/j.jenvman.2022.115649] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/01/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
The main treatment unit in conventional systems for surface water is coagulation-flocculation (CF) process, which consumes huge quantities of coagulant, and produces large volume of sludge. The produced sludge is known as one of the components of water treatment sludge (WTS), which is considered as a global issue and hot topic require careful attention from the plant operators and sludge managers to be managed sustainably with applying an ecofriendly method. Among the suggested technologies, recovery and reuse of coagulants from WTS show the potential to decrease the waste disposal and chemicals usage for drinking water treatment significantly. So, this comprehensive review provides a useful insight into environmental and health problems of WTS, reports the sources, physicochemical properties of sludge, describes different sludge management methods by more focus on coagulant recovery (CR), which significantly point out the different aspects of WTS recovery and reuse, and eventually, economic evaluation of the CR process was also discussed. The results of this review confirm that coagulants can be recovered from WTS by different methods and also will be reused for multiple times in the removal of pollutants from water and wastewater. Moreover, the recovered coagulants can be used as building and construction materials, constructed wetlands substrate and other aims.
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Affiliation(s)
- Danial Nayeri
- Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran; Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyyed Alireza Mousavi
- Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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22
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Fang Z, Wang H, Zhang K, Cheng S, Zhang X. Enhanced removal of nickel(II) from water by utilizing gel-type nanocomposite containing sub-5 nm hydrated manganese(IV) oxides. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Khalatbary M, Sayadi MH, Hajiani M, Nowrouzi M, Homaeigohar S. Green, Sustainable Synthesis of γ-Fe 2O 3/MWCNT/Ag Nano-Composites Using the Viscum album Leaf Extract and Waste Car Tire for Removal of Sulfamethazine and Bacteria from Wastewater Streams. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162798. [PMID: 36014663 PMCID: PMC9412352 DOI: 10.3390/nano12162798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 06/02/2023]
Abstract
Multi-walled carbon nanotubes (MWCNTs) decorated with Ag nanoparticles (NPs) are bifunctional adsorbent nanomaterials with antibacterial activity. They can be magnetically recovered from wastewater in case of coupling with γ-Fe2O3. In this study, for the first time, an environmentally friendly technique was applied to prepare a nanocomposite (NC) material composed of γ-Fe2O3/MWCNT/Ag by using Bridgestone disposable tires and Viscum album leaves extract. γ-Fe2O3/MWCNTs/Ag NC was employed for the removal of sulfamethazine (SMT) from aqueous solutions. Under the optimized conditions determined via the Taguchi method, the highest SMT adsorption capacity of the γ-Fe2O3/MWCNT/Ag NC was measured to be 47.6 mg/g. The experimental data fitted well with the pseudo-second-order kinetic model and the Langmuir isotherm. The thermodynamic parameters implied that the adsorption process was endothermic. In addition to adsorption of the drug pollutant, the NC demonstrated a superior antibacterial activity against Gram-positive bacteria. The reusability test also showed that over 79% SMT can be removed using γ-Fe2O3/MWCNTs/Ag NC even after four adsorption cycles. Taken together, γ-Fe2O3/MWCNTs/Ag NC was proven to be a promising antibacterial nano-adsorbent for wastewater treatment.
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Affiliation(s)
- Mansooreh Khalatbary
- Department of Environmental Engineering, Faculty of Natural Resources and Environment, University of Birjand, Birjand P.O. Box 97175/615, Iran
| | - Mohammad Hossein Sayadi
- Department of Environmental Engineering, Faculty of Natural Resources and Environment, University of Birjand, Birjand P.O. Box 97175/615, Iran
| | - Mahmood Hajiani
- Department of Environmental Engineering, Faculty of Natural Resources and Environment, University of Birjand, Birjand P.O. Box 97175/615, Iran
| | - Mohsen Nowrouzi
- Department of Science and Biotechnology, Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr 75169-13798, Iran
| | - Shahin Homaeigohar
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, UK
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24
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Hasi QM, Han ZC, Guo YP, Yu JL, Xiao CH, Zhang YH, Chen LH. Porphyrin-Based Conjugated Microporous Polymers for Highly Efficient Adsorption of Metal Ions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:9507-9517. [PMID: 35878884 DOI: 10.1021/acs.langmuir.2c00681] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The capture and elimination of anions and cations from water have attracted a great deal of attention and are quite vital for clean production and environmental remediation. In this work, we present the synthesis of four porphyrin (Por)-based conjugated microporous polymers (CMPs, namely, Por-CMP-1-4), which were produced through a Sonogashira-Hagihara linked response using porphyrin and acetylene aromatic compounds as building blocks and used as absorbents to eliminate metal ions from water. The as-synthesized Por-CMP-1-4 exhibit an amorphous porous structure and outstanding caloric and physicochemical properties. Taking advantage of their larger specific surface areas, i.e., 541.47, 614.58, 382.38, and 677.90 m2 g-1 for Por-CMP-1-4, respectively, and their chelating active site that originated from the porphyrin ring, Por-CMP-1-4 show better Zn2+, Cu2+, and Pb2+ adsorption ability. Among them, Por-CMP-3 has the greatest adsorbability of 640 mg g-1 for Zn2+, with an adsorption efficiency of 80%, whereas its adsorption capacities for Cu2+ and Pb2+ ions were both 334 mg g-1, with an adsorption efficiency of 42% for Cu2+ and Pb2+. Employing Por-CMP-3 as a representative example, its adsorption kinetics has been systematically investigated. The adsorption behavior of Por-CMP-3 with respect to the Zn2+ ion is shown to exhibit pseudo-first-order kinetics and Langmuir isotherm modes. Meanwhile, the adsorption mechanism is discussed in detail, and it was thought it might be chelation, in which the nitrogen atoms with a single pair of electrons on the porphyrin ring interacted with metal ions to form stable chelation coordination bonds, thus removing metal ions selectively and effectively. Furthermore, Por-CMP-3 exhibited good reusability, retaining 60% of its Zn2+ removal rate after four continuous adsorptions.
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Affiliation(s)
- Qi-Meige Hasi
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Gansu Provincial Biomass Function Composites Engineering Research Center, College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, P. R. China
| | - Zhi-Chao Han
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Gansu Provincial Biomass Function Composites Engineering Research Center, College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, P. R. China
| | - Yu-Ping Guo
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Gansu Provincial Biomass Function Composites Engineering Research Center, College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, P. R. China
| | - Jia-Le Yu
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Gansu Provincial Biomass Function Composites Engineering Research Center, College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, P. R. China
| | - Chao-Hu Xiao
- Experimental Teaching Department, Northwest Minzu University, Lanzhou 730030, P. R. China
| | - Yu-Han Zhang
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Gansu Provincial Biomass Function Composites Engineering Research Center, College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, P. R. China
| | - Li-Hua Chen
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Gansu Provincial Biomass Function Composites Engineering Research Center, College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, P. R. China
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25
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Synthesis of novel nanoporous zinc phosphate/hydroxyapatite nano-rods (ZPh/HPANRs) core/shell for enhanced adsorption of Ni2+ and Co2+ ions: Characterization and application. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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26
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Karthik V, Karuna B, Kumar PS, Saravanan A, Hemavathy RV. Development of lab-on-chip biosensor for the detection of toxic heavy metals: A review. CHEMOSPHERE 2022; 299:134427. [PMID: 35358561 DOI: 10.1016/j.chemosphere.2022.134427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 03/09/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Recently, a decrease in water availability and quality has been raised due to rapid industrialization, unsustainable agricultural activities and anthropogenic activities. Heavy metals are considered significant pollutants in the water environment, cause environmental hazards and health effects to humans. For monitoring water contaminants utilized different conventional techniques. Still, they have some drawbacks, such as cost expensive, ecological issues, and processing time, requiring technicians and researchers to operate them effectively. Biosensors have become reasonable devices for screening and identifying environmental contaminants because of their different benefits contrasted with other detecting techniques. This review summarizes the toxic effect of heavy metal and their source, occurrence. A detailed discussion is provided on the heavy metal recognition materials for detecting heavy metals in wastewater. Lab on chip (LOC) is an emerging micro-electrical mechanical system (MEMS) device that intakes liquid and makes it move through the micro-channels, to accomplish fast, cost-effective and profoundly sensitive analysis with significant yield. LOC also provided a discussion on numerous laboratory functions on a single platform. This article attempts to discuss the detection of heavy metals using lab on a chip by suitable recognition materials. Further, the design and fabrication mechanism and their recognition abilities of LOC were also reviewed. The review mainly focuses on the application of LOC biosensors, pros, and cons, and suggests a roadmap towards future development to enhance the practical use in pollutant monitoring.
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Affiliation(s)
- V Karthik
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, India
| | - B Karuna
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - A Saravanan
- Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - R V Hemavathy
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, 602105, India
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Zhang W, Du C, Zhang N, Zheng Z, Tie J. Reactive blue 19 adsorption behaviors of magnesium hydroxide modified biochar derived from the traditional Chinese medical residual. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Karimi-Nazarabad M, Azizi-Toupkanloo H. Functionalization of beet waste by cross-linking to attach amine groups for efficient sorption of reactive black 5 anionic dye. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-021-02398-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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Sohrabi N, Mohammadi R, Ghassemzadeh HR, Heris SSS. Design and synthesis of a new magnetic molecularly imprinted polymer nanocomposite for specific adsorption and separation of diazinon insecticides from aqueous media. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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30
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Jean Claude N, Shanshan L, Khan J, Yifeng W, Dongxu H, Xiangru L. Waste tea residue adsorption coupled with electrocoagulation for improvement of copper and nickel ions removal from simulated wastewater. Sci Rep 2022; 12:3519. [PMID: 35241732 PMCID: PMC8894501 DOI: 10.1038/s41598-022-07475-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 01/19/2022] [Indexed: 12/07/2022] Open
Abstract
The present research involves removing copper and nickel ions from synthesized wastewater by using a simple, cheap, cost-effective, and sustainable activated green waste tea residue (AGWTR) adsorption coupled with electrocoagulation (ADS/EC) process in the presence of iron electrodes. By considering previous studies, their adsorbents used for treating their wastewaters firstly activate them by applying either chemicals or activating agents. However, our adsorbent was prepared without applying neither chemicals nor any activating agents. The operating parameters such as pH, hydraulic retention time, adsorbent dose, initial concentration, current density, and operating cost for both metals were optimized. In ADS/EC, the removal efficiency was obtained as 100% for copper and 99.99% for nickel ions. After the ADS/EC process, Fourier transform infrared (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDS) analysis were used to characterize the adsorbent green waste tea residue. The adsorption isotherm and kinetic model results showed that the Langmuir and the pseudo-second-order were well-fitted to the experimental adsorption data better than the Freundlich and pseudo-first-order models for both Cu2+ and Ni2+ with their maximum adsorption capacity of 15.6 and 15.9 mg g−1, respectively. The above results give an option to recycle the metal-based industrial effluents, tea industry-based wastes, enabling a waste-to-green technique for adsorbing and removing the heavy metals and other pollutants in water.
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Affiliation(s)
| | - Lin Shanshan
- School of Environment Northeast, Normal University, Changchun, 130117, China.
| | - Junaid Khan
- School of Environment Northeast, Normal University, Changchun, 130117, China
| | - Wu Yifeng
- School of Environment Northeast, Normal University, Changchun, 130117, China
| | - Han Dongxu
- School of Environment Northeast, Normal University, Changchun, 130117, China
| | - Liu Xiangru
- School of Environment Northeast, Normal University, Changchun, 130117, China
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Chitosan@Carboxymethylcellulose/CuO-Co2O3 Nanoadsorbent as a Super Catalyst for the Removal of Water Pollutants. Gels 2022; 8:gels8020091. [PMID: 35200472 PMCID: PMC8871360 DOI: 10.3390/gels8020091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/13/2022] [Accepted: 01/20/2022] [Indexed: 02/05/2023] Open
Abstract
In this work, an efficient nanocatalyst was developed based on nanoadsorbent beads. Herein, carboxymethyl cellulose–copper oxide-cobalt oxide nanocomposite beads (CMC/CuO-Co2O3) crosslinked by using AlCl3 were successfully prepared. The beads were then coated with chitosan (Cs), Cs@CMC/CuO-Co2O3. The prepared beads, CMC/CuO-Co2O3 and Cs@CMC/CuO-Co2O3, were utilized as adsorbents for heavy metal ions (Ni, Fe, Ag and Zn). By using CMC/CuO-Co2O3 and Cs@CMC/CuO-Co2O3, the distribution coefficients (Kd) for Ni, Fe, Ag and Zn were (41.166 and 6173.6 mLg−1), (136.3 and 1500 mLg−1), (20,739.1 and 1941.1 mLg−1) and (86.9 and 2333.3 mLg−1), respectively. Thus, Ni was highly adsorbed by Cs@CMC/CuO-Co2O3 beads. The metal ion adsorbed on the beads were converted into nanoparticles by treating with reducing agent (NaBH4) and named Ni/Cs@CMC/CuO-Co2O3. Further, the prepared nanoparticles-decorated beads (Ni/Cs@CMC/CuO-Co2O3) were utilized as nanocatalysts for the reduction of organic and inorganic pollutants (4-nitophenol, MO, EY dyes and potassium ferricyanide K3[Fe(CN)6]) in the presence of NaBH4. Among all catalysts, Ni/Cs@CMC/CuO-Co2O3 had the highest catalytic activity toward MO, EY and K3[Fe(CN)6], removing up to 98% in 2.0 min, 90 % in 6.0 min and 91% in 6.0 min, respectively. The reduction rate constants of MO, EY, 4-NP and K3[Fe(CN)6] were 1.06 × 10−1, 4.58 × 10−3, 4.26 × 10−3 and 5.1 × 10−3 s−1, respectively. Additionally, the catalytic activity of the Ni/Cs@CMC/CuO-Co2O3 beads was effectively optimized. The stability and recyclability of the beads were tested up to five times for the catalytic reduction of MO, EY and K3[Fe(CN)6]. It was confirmed that the designed nanocomposite beads are ecofriendly and efficient with high strength and stability as catalysts for the reduction of organic and inorganic pollutants.
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Long R, Yu Z, Shan M, Feng X, Zhu X, Li X, Wang P. The easy-recoverable 3D Ni/Fe-LDH-SA gel ball encapsulated by sodium alginate is used to remove Ni2+ and Cu2+ in water samples. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127942] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Kumar PS, Gayathri R, Rathi BS. A review on adsorptive separation of toxic metals from aquatic system using biochar produced from agro-waste. CHEMOSPHERE 2021; 285:131438. [PMID: 34252804 DOI: 10.1016/j.chemosphere.2021.131438] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/29/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
Water is a basic and significant asset for living beings. Water assets are progressively diminishing due to huge populace development, industrial activities, urbanization and rural exercises. Few heavy metals include zinc, copper, lead, nickel, cadmium and so forth can easily transfer into the water system either direct or indirect activities of electroplating, mining, tannery, painting, fertilizer industries and so forth. The different treatment techniques have been utilized to eliminate the heavy metals from aquatic system, which includes coagulation/flocculation, precipitation, membrane filtration, oxidation, flotation, ion exchange, photo catalysis and adsorption. The adsorption technique is a better option than other techniques because it can eliminate heavy metals even at lower metal ions concentration, simplicity and better regeneration behavior. Agricultural wastes are low-cost biosorbent and typically containing cellulose have the ability to absorb a variety of contaminants. It is important to note that almost all agro wastes are no longer used in their original form but are instead processed in a variety of techniques to improve the adsorption capacity of the substance. The wide range of adsorption capacities for agro waste materials were observed and almost more than 99% removal of toxic pollutants from aquatic systems were achieved using modified agro-waste materials. The present review aims at the water pollution due to heavy metals, as well as various heavy metal removal treatment procedures. The primary objectives of this research is to include an overview of adsorption and various agriculture based adsorbents and its comparison in heavy metal removal.
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Affiliation(s)
- P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - R Gayathri
- Tamilnadu Pollution Control Board, Guindy, Chennai, 600032, India
| | - B Senthil Rathi
- Department of Chemical Engineering, St. Joseph's College of Engineering, Chennai, 600119, India
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34
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Bilal M, Ihsanullah I, Younas M, Ul Hassan Shah M. Recent advances in applications of low-cost adsorbents for the removal of heavy metals from water: A critical review. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119510] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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35
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An Q, Deng S, Liu M, Li Z, Wu D, Wang T, Chen X. Study on the aerobic remediation of Ni(II) by Pseudomonas hibiscicola strain L1 interaction with nitrate. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 299:113641. [PMID: 34479150 DOI: 10.1016/j.jenvman.2021.113641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 08/09/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
Aerobic denitrifying bacteria have the potential to remove the co-pollutants Ni(II) and nitrate in industrial wastewater. In this study, aerobic denitrifying bacteria with significant Ni(II) removal efficiency was isolated from the biological reaction tank and named as Pseudomonas hibiscicola L1 strain after 16 S rRNA identification analysis. The removal of ever-increasing Ni(II) and NO3--N wastewater under aerobic conditions by strain L1 was discussed. The experimental results showed that strain L1 removed 84% of Ni(II) and 81% of COD, with the use of 34.8 mg L-1 of nitrogen source and without nitrite accumulation yet. Strain L1 had remarkable activity (OD600 = 0.51-0.56 (p < 0.05)) at 20 mg L-1 of Ni(II) and 100 mg L-1 of NO3--N. It was found that high Ni(II) gradients (2-10 mg L-1) had little effect on nitrate removal ratio (35-34% (p > 0.05), and the removal ratios of Ni(II) was enhanced (from 42% to 83% (p < 0.05)) by increasing nitrate (25-100 mg L-1). Also, the results indicated that strain L1 could reduce Ni(II) and nitrate under different pH (6-9); electron donor-glucose, sodium acetate, sodium succinate and trisodium citrate; C/N (5-20) and coexisting ions (Cu(II) and Zn(II)). Notably, the nitrogen balance analysis showed 32.4% of TN was lost nitrogen and 19.7% of TN was assimilated for cell growth, which indicated aerobic denitrification process of strain L1. Meanwhile, characterization technology (SEM, FTIR, and XRD) showed Ni(II) was bioadsorbed in the form of Ni(NH2)2, NiCO3, and Ni(OH)2·2H2O through surface functional groups. This research provides new microbial method for the simultaneous removal of nitrate and Ni(II) in wastewater.
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Affiliation(s)
- Qiang An
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China; The Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Chongqing University, Chongqing, 400045, PR China.
| | - Shuman Deng
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
| | - Meng Liu
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
| | - Zheng Li
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
| | - Danqing Wu
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
| | - Tuo Wang
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, PR China
| | - Xuemei Chen
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
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36
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Saravanan A, Kumar PS, Nguyen Vo DV, Jayasree R, Venkatakrishnan Hemavathy RR, Karthik V, Karishma S, Jeevanantham S, Manivasagan V, George CS. Surface improved agro-based material for the effective separation of toxic Ni(II) ions from aquatic environment. CHEMOSPHERE 2021; 283:131215. [PMID: 34147981 DOI: 10.1016/j.chemosphere.2021.131215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/04/2021] [Accepted: 06/10/2021] [Indexed: 06/12/2023]
Abstract
In this present study, a novel and low cost surface improved material was prepared from the farm waste material (Borassus flabellifer male inflorescence) and its surface was enhanced by the sulphuric acid treatment to intensify the Ni(II) ions adsorption. The adsorption individualities such as availability of functional groups, essential elements and the exterior side and structural properties of the material were assessed by the FT-IR, EDX, SEM and XRD investigation. The impact of varied adsorption influencing parameters on Ni(II) ions adsorption was studied and optimized as pH - 6.0, biosorbent dosage - 1.5 g/L, contact time - 60 min and temperature - 303 K via batch adsorption examination. Modeling examinations were carried with varied adsorption isotherm (Langmuir, Freundlich, Fritz-Schlunder and Temkin) and kinetic models (Pseudo-first order, Pseudo-second order and Elovich kinetics). Thermodynamic studies were carried out at varied Ni(II) ions concentrations (25 mg/L - 150 mg/L) and temperatures (303 K-333 K) to explain the nature of Ni(II) ions adsorption on Borassus flabellifer male inflorescence. The prepared material has shown the most suitable Ni(II) ions adsorption results for the Langmuir isotherm (R2 = 0.9808) and Pseudo-first order kinetic models (R2 = 0.9735 for 25 mg/L). Thereby, the modeling study revealed that the prepared material has received the Ni(II) ions adsorption capacity (qm) value of 20.31 mg/g and the Ni(II) ions adsorption was physisorption. Thermodynamic results demonstrated that the Ni(II) ions adsorption was immediate, exothermic and favorable at low temperature.
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Affiliation(s)
- Anbalagan Saravanan
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, India
| | - Ponnusamy Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India.
| | - Dai-Viet Nguyen Vo
- Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam; College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Ravindran Jayasree
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, India
| | | | - Velusamy Karthik
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, India
| | - Suresh Karishma
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, India
| | | | | | - Cynthia Susan George
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
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Wang R, Deng L, Fan X, Li K, Lu H, Li W. Removal of heavy metal ion cobalt (II) from wastewater via adsorption method using microcrystalline cellulose-magnesium hydroxide. Int J Biol Macromol 2021; 189:607-617. [PMID: 34450150 DOI: 10.1016/j.ijbiomac.2021.08.156] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 01/11/2023]
Abstract
Microcrystalline cellulose (MCC), magnesium sulfate hexahydrate, and trisodium citrate were reacted in ammonia bath in an aqueous solution to prepare a MCC-magnesium hydroxide (MH) composite adsorbent, which was used to adsorb heavy metal Co(II) ion. The method of using MCC-MH to adsorb and remove Co(II) was studied under different pH values, adsorbent dosages, contact times, initial Co(II) ion concentrations, and temperatures. The optimal process parameters include an MCC-MH dosage of 2.5 mg/mL, a contact reaction equilibrium time of 50 min, a Co(II) solution pH of 6.0-8.0, an initial Co(II) concentration of 300 mg/L, and a temperature of 303 K. The removal rate of Co(II) solution by MCC-MH was as high as 97.67%, and the maximum adsorption capacity of MCC-MH reached 153.84 mg/g under these optimal conditions. The adsorption isotherm of Co(II) conformed to the Langmuir model, the kinetic data of Co(II) conformed to the pseudo-second-order kinetic model, and the adsorption of Co(II) by MCC-MH was a spontaneous endothermic reaction under the optimized conditions. Analytical studies showed that Co(II) adsorption on MCC-MH composites is affected by chemical adsorption and involves the influence of intraparticle diffusion to a certain extent.
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Affiliation(s)
- Ruifeng Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Ligao Deng
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Xuejing Fan
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Kai Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China.
| | - Haiqin Lu
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Wen Li
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, China; College of Chemical Engineering, Nanjing Tech University, Nanjing, China; Postdoctoral Innovation Practice Base of Jiangsu Province, Jiangsu Jiuwu Hi-Tech Company Limited, Nanjing, China.
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38
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Zhu H, Li L, Chen W, Tong Y, Wang X. Controllable synthesis of coral-like hierarchical porous magnesium hydroxide with various surface area and pore volume for lead and cadmium ion adsorption. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125922. [PMID: 34492854 DOI: 10.1016/j.jhazmat.2021.125922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 04/02/2021] [Accepted: 04/15/2021] [Indexed: 06/13/2023]
Abstract
A coral-like hierarchical porous magnesium hydroxide (HPMH) with various surface area and pore volume was controllably prepared using a simple one-step hydrothermal process, for which MgO, water and citric acid were applied. The citric acid (CA), as a structure-directing molecule, is a key factor in regulating the pore structure of HPMH products. With different additive dosages, the nanostructure, surface area and pore volume of HPMH products can be controllably regulated. The MH-CA20 product (prepared in the presence of 20 wt% CA) with high BET surface area (159 m2/g) and pore volume (0.75 cm3/g) was used to investigate the adsorption properties for Pb(II) and Cd(II) ions. The experimental adsorption capabilities of the MH-CA20 for Pb(II) and Cd(II) are respectively 4535 and 3530 mgg-1, very close to the maximum adsorption capabilities calculated by Langmuir equation (4545 and 3571 mgg-1). According to the adsorption kinetics and adsorption isotherm data, the adsorption process conforms to the Pseudo-second-order and Langmuir model, indicating that heavy metal ions conduct monolayer chemical adsorption mechanism. Since the preparation of HPMH is simple, low-cost and filtrate recycling, the process can easily be scaled up and could be a good candidate for application in tackling different wastewater.
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Affiliation(s)
- Hu Zhu
- Engineering Research Center of Industrial Biocatalysis, Fujian Province University, Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, People's Republic of China
| | - Lu Li
- Engineering Research Center of Industrial Biocatalysis, Fujian Province University, Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, People's Republic of China
| | - Wendan Chen
- Engineering Research Center of Industrial Biocatalysis, Fujian Province University, Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, People's Republic of China
| | - Yuejin Tong
- Engineering Research Center of Industrial Biocatalysis, Fujian Province University, Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, People's Republic of China
| | - Xuesong Wang
- Engineering Research Center of Industrial Biocatalysis, Fujian Province University, Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, People's Republic of China.
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Oke EA, Ijardar SP. Insights into the separation of metals, dyes and pesticides using ionic liquid based aqueous biphasic systems. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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40
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Zhang J, Wang P, Wen H, Raza S, Zhu Z, Huang W, Liang L, Liu C. Polymer brush-grafted cotton with petal-like microstructure as superhydrophobic and self-cleaning adsorbents for oil/water separation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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41
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Ricardo-García JA, Enamorado-Horrutiner Y, Rodríguez-Fuentes G, Pomares-Alfonso MS, Villanueva-Tagle ME. Characterization of zeolite as sorbent for Ni(II) concentration in aqueous solutions. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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Triethylene tetramine-modified crosslinked acrylonitrile as Cu(II) ion adsorbent by photo-induced precipitation polymerization. IRANIAN POLYMER JOURNAL 2021. [DOI: 10.1007/s13726-021-00923-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Ziaee F, Ziaee M, Taseidifar M. Synthesis and application of a green surfactant for the treatment of water containing PFAS/ hazardous metal ions. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124800. [PMID: 33359975 DOI: 10.1016/j.jhazmat.2020.124800] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
In this work, the effectiveness of a biodegradable and natural surfactant synthesized through a novel method has been studied through the ion flotation process to treat waters containing Per/Poly Fluoroalkyl Substances (PFAS) and heavy-metal ions. This cysteine-based surfactant, which is environmentally acceptable, showed considerable solubility and foaming ability over a wide range of pH. It also could remove 97-99(%) of 5 mg/L of cadmium, chromium, copper, nickel, zinc, and manganese ions in a single batch physicochemical process. Moreover, for the first time, a foam fractionation method in association with using this cysteine-based surfactant was applied for perfluorooctanoic acid (PFOA) removal from water. This surfactant was used as a co-surfactant and could readily remove 72% of PFOA (40 mg/L) from water. The characterization of the surfactant was undertaken using 1H NMR, FT-IR, elemental analysis, melting point, and determination of its critical micelle concentration (CMC). This environmentally friendly surfactant has high potential applications in green chemistry especially in the treatment of waters contaminated with PFAS/heavy-metal ions.
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Affiliation(s)
- Farzaneh Ziaee
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Mohammad Ziaee
- School of Science, UNSW Canberra, Northcott Drive, Canberra, ACT 2610, Australia.
| | - Mojtaba Taseidifar
- School of Science, UNSW Canberra, Northcott Drive, Canberra, ACT 2610, Australia
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Sohrabi N, Mohammadi R, Ghassemzadeh HR, Heris SSS. Equilibrium, kinetic and thermodynamic study of diazinon adsorption from water by clay/GO/Fe3O4: Modeling and optimization based on response surface methodology and artificial neural network. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115384] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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45
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Tu B, Zhou K, Zhou Q, Gong K, Hu D. Waste to resource: preparation of an efficient adsorbent and its sustainable utilization in flame retardant polyurethane composites. RSC Adv 2021; 11:9942-9954. [PMID: 35423514 PMCID: PMC8695703 DOI: 10.1039/d0ra10873a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 03/03/2021] [Indexed: 11/27/2022] Open
Abstract
In order to realize the comprehensive utilization of industrial solid waste and the treatment of water eutrophication, the flower-like magnesium hydroxide (MH) was synthesized from phosphorus tailings by sulfuric acid hydrolysis and a hydrothermal method and then was modified with a metal organic framework (MOF) to remove the phosphates enriched in water through adsorption. Both MH and MOF-modified MH (MH@MOF) presented good removal performance of phosphates. The phosphate-adsorbed composites (MH-P and MH@MOF-P) were sustainably used as effective flame retardants for thermoplastic polyurethane (TPU) at low loadings by a solution blending method. The cone calorimetry test results showed that MH@MOF-P can significantly reduce the heat release rate (HRR), smoke production rate (SPR), total smoke release (TSR), CO release rate and CO2 release rate of TPU composites, compared with those of neat TPU. The novel strategy proposed in this work is of great significance for resource recycling, environmental governance and improving fire safety of polymer materials.
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Affiliation(s)
- Bei Tu
- Faculty of Engineering, China University of Geosciences (Wuhan) Wuhan Hubei 430074 China
| | - Keqing Zhou
- Faculty of Engineering, China University of Geosciences (Wuhan) Wuhan Hubei 430074 China
| | - Qianqian Zhou
- Faculty of Engineering, China University of Geosciences (Wuhan) Wuhan Hubei 430074 China
| | - Kaili Gong
- Faculty of Engineering, China University of Geosciences (Wuhan) Wuhan Hubei 430074 China
| | - Dongtao Hu
- Faculty of Engineering, China University of Geosciences (Wuhan) Wuhan Hubei 430074 China
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46
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Alkali-Activated Adsorbents from Slags: Column Adsorption and Regeneration Study for Nickel(II) Removal. CHEMENGINEERING 2021. [DOI: 10.3390/chemengineering5010013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Alkali-activated adsorbents were synthesized by mixing three different slags from the steel industry: blast furnace slag (BFS), ladle slag (LS), and Lintz–Donawitz converter slag (LD). These powdered slag-based geopolymers (GP) were used to remove nickel(II) from aqueous solutions in fixed-bed column studies. The experiments were conducted in pH 6 using a phosphate buffer with initial nickel(II) concentration of 50 mg/L. Samples were taken at time intervals of between 5 and 90 min. Three adsorption–desorption cycles were implemented with a flow rate of 5 mL/min. The geopolymers were characterized by Fourier-Transform Infrared Spectroscopy (FTIR), X-ray powder diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), X-ray fluorescence (XRF), specific surface area measurements, and a leaching test. The data were found to describe the Thomas, Adams–Bohart, and Yoon–Nelson models well. For GP (BFS, LS), experimental adsorption capacity was 2.92 mg/g, and for GP (LD, BFS, LS), it was 1.34 mg/g. The results indicated that the produced adsorbents have the potential to be used as adsorbents for the removal of nickel(II).
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47
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Miao J, Wang F, Li Q, Li J, Zhang S, Jiang Y. Fir bark modified by Phanerodontia chrysosporium: A low-cost amendment for cd-contaminated water and agricultural soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111830. [PMID: 33387773 DOI: 10.1016/j.ecoenv.2020.111830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/30/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
In this study, a modified fir barks (MFB) was prepared by mixing fir barks (FB) and white-rot fungi (Phanerodontia chrysosporium) under aerobic fermentation. The potential of MFB for Cd2+ adsorption was investigated by batch experiments combined with kinetic, isotherm, and thermodynamics analyses. The results revealed that the modification greatly increased the porous structures on the surfaces of fir barks and the surface area of MFB was much higher than that of FB. As a result, the adsorption capacity of Cd2+ on MFB (17.4 mg g-1) was more than two times higher than that on FB (7.2 mg g-1), and the adsorption of Cd2+ on MFB was controlled by physisorption and chemisorption. The immobilization of Cd by MFB in a contaminated agricultural soil was also investigated. The effect of MFB on the bioavailability of Cd was investigated using a leaching test (the European standard EN 12457-2) combined with a typical sequential extraction procedure (the community bureau of reference, BCR). The experimental results showed that the Cd leachability was reduced by 71% when the added MFB dosage was 30 mg g-1. Besides, the MFB amendment could transform Cd from unstable geochemical fractions into more stable fractions. In total, the MFB, as a chemical-free and eco-friendly material, could be potentially employed for in-situ remediation of Cd-contaminated agricultural soils.
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Affiliation(s)
- Jiahe Miao
- Jiangsu Province Key Laboratory of Environmental Engineering, School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Fenghe Wang
- Jiangsu Province Key Laboratory of Environmental Engineering, School of Environment, Nanjing Normal University, Nanjing 210023, China.
| | - Qun Li
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China.
| | - Jining Li
- Jiangsu Province Key Laboratory of Environmental Engineering, School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Shengtian Zhang
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China
| | - Yanni Jiang
- Jiangsu Province Key Laboratory of Environmental Engineering, School of Environment, Nanjing Normal University, Nanjing 210023, China
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Egbosiuba TC, Abdulkareem AS, Kovo AS, Afolabi EA, Tijani JO, Bankole MT, Bo S, Roos WD. Adsorption of Cr(VI), Ni(II), Fe(II) and Cd(II) ions by KIAgNPs decorated MWCNTs in a batch and fixed bed process. Sci Rep 2021; 11:75. [PMID: 33420137 PMCID: PMC7794394 DOI: 10.1038/s41598-020-79857-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/19/2020] [Indexed: 01/29/2023] Open
Abstract
The efficient removal of toxic metals ions from chemical industry wastewater is considered problematic due to the existence of pollutants as mixtures in the aqueous matrix, thus development of advanced and effective treatment method has been identified as a panacea to the lingering problems of heavy metal pollution. In this study, KIAgNPs decorated MWCNTs nano adsorbent was developed using combination of green chemistry protocol and chemical vapor deposition techniques and subsequently characterized using UV-Vis, HRTEM, HRSEM, XRD, FTIR and XPS. The adsorptive efficiency of MWCNTs-KIAgNPs for the removal of Cr(VI), Ni(II), Fe(II), Cd(II) and physico-chemical parameters like pH, TDS, COD, BOD, nitrates, sulphates, chlorides and phosphates from chemical industrial wastewater was examined in both batch and fixed bed systems. The result exhibited successful deposition of KIAgNPs on the surface of MWCNTs as confirmed by the microstructures, morphology, crystalline nature, functional groups and elemental characteristics of the MWCNTs-KIAgNPs. Optimum batch adsorption parameters include; pH (3 for Cr(VI) and 6 for Ni(II), Fe(II) and Cd(II) ions), contact time (60 min), adsorbent dosage (40 mg) and temperature (318 K). The binding capacities were obtained as follows; Cr6+ (229.540 mg/g), Ni2+ (174.784 mg/g), Fe2+ (149.552) and Cd2+ (121.026 mg/g), respectively. Langmuir isotherm and pseudo-second order kinetic model best described the experimental data in batch adsorption, while the thermodynamic parameters validated the chemisorption and endothermic nature of the adsorption process. In continuous adsorption, the metal ions were effectively removed at low metal influent concentration, low flow rate and high bed depth, whereby the experimental data were designated by Thomas model. The high physico-chemical parameters in the wastewater were successfully treated in both batch and fixed bed systems to fall within WHO permissible concentrations. The adsorption/desorption study illustrated over 80% metal removal by MWCNTs-KIAgNPs even after 8th adsorption cycle. This study demonstrated excellent performance of MWCNTs-KIAgNPs for chemical industry wastewater treatment.
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Affiliation(s)
- Titus Chinedu Egbosiuba
- Department of Chemical Engineering, Federal University of Technology, PMB.65, Minna, Niger, Nigeria.
- Department of Chemical Engineering, Chukwuemeka Odumegwu Ojukwu University, PMB 02, Uli, Anambra, Nigeria.
- Nanotechnology Research Group, Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology, P.M.B 65, Bosso, Minna, Niger, Nigeria.
| | - Ambali Saka Abdulkareem
- Department of Chemical Engineering, Federal University of Technology, PMB.65, Minna, Niger, Nigeria
- Nanotechnology Research Group, Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology, P.M.B 65, Bosso, Minna, Niger, Nigeria
| | - Abdulsalami Sanni Kovo
- Department of Chemical Engineering, Federal University of Technology, PMB.65, Minna, Niger, Nigeria
- Nanotechnology Research Group, Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology, P.M.B 65, Bosso, Minna, Niger, Nigeria
| | - Eyitayo Amos Afolabi
- Department of Chemical Engineering, Federal University of Technology, PMB.65, Minna, Niger, Nigeria
| | - Jimoh Oladejo Tijani
- Department of Chemistry, Federal University of Technology, PMB.65, Minna, Niger, Nigeria
- Nanotechnology Research Group, Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology, P.M.B 65, Bosso, Minna, Niger, Nigeria
| | - Mercy Temitope Bankole
- Department of Chemistry, Federal University of Technology, PMB.65, Minna, Niger, Nigeria
- Nanotechnology Research Group, Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology, P.M.B 65, Bosso, Minna, Niger, Nigeria
| | - Shufeng Bo
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
| | - Wiets Daniel Roos
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
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Eftekhari M, Akrami M, Gheibi M, Azizi-Toupkanloo H, Fathollahi-Fard AM, Tian G. Cadmium and copper heavy metal treatment from water resources by high-performance folic acid-graphene oxide nanocomposite adsorbent and evaluation of adsorptive mechanism using computational intelligence, isotherm, kinetic, and thermodynamic analyses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:43999-44021. [PMID: 32748352 DOI: 10.1007/s11356-020-10175-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
In this paper, folic acid-coated graphene oxide nanocomposite (FA-GO) is used as an adsorbent for the treatment of heavy metals including cadmium (Cd2+) and copper (Cu2+) ions. As such, graphene oxide (GO) is modified by folic acid (FA) to synthesize FA-GO nanocomposite and characterized by the atomic force microscopy (AFM), Fourier transform-infrared (FT-IR) spectrophotometry, scanning electron microscopy (SEM), and C/H/N elemental analyses. Also, computational intelligence tests are used to study the mechanism of the interaction of FA molecules with GO. Based on the results, FA molecules formed a strong π-π stacking, chemical, and hydrogen bond interactions with functional groups of GO. Main parameters including pH of the sample solution, amounts of adsorbent, and contact time are studied and optimized by the Response Surface Methodology Based on Central Composite Design (RSM-CCD). In this study, the equilibrium of adsorption is appraised by two (Langmuir and Freundlich and Temkin and D-R models) and three parameter (Sips, Toth, and Khan models) isotherms. Based on the two parameter evaluations, Langmuir and Freundlich models have high accuracy according to the R2 coefficient (more than 0.9) in experimental curve fittings of each pollutant adsorption. But, multilayer adsorption of each contaminant onto the FA-GO adsorbent (Freundlich equation) is demonstrated by three parameter isotherm analysis. Also, isotherm calculations express maximum computational adsorption capacities of 103.1 and 116.3 mg g-1 for Cd2+ and Cu2+ ions, correspondingly. Kinetic models are scrutinized and the outcomes depict the adsorption of both Cd2+ and Cu2+ followed by the pseudo-second-order equation. Meanwhile, the results of the geometric model illustrate that the variation of adsorption and desorption rates do not have any interfering during the adsorption process. Finally, thermodynamic studies show that the adsorption of Cu2+ and Cd2+ onto the FA-GO nanocomposite is an endothermic and spontaneous process.
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Affiliation(s)
- Mohammad Eftekhari
- Department of Chemistry, Faculty of Sciences, University of Neyshabur, Neyshabur, Iran.
| | - Mehran Akrami
- Department of Civil Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Gheibi
- Department of Civil Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
- School of Mechanical Engineering, Shandong University, Jinan, 250061, China
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education), Shandong University, Jinan, 250061, China
- National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, China
| | | | | | - Guangdong Tian
- School of Mechanical Engineering, Shandong University, Jinan, 250061, China
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education), Shandong University, Jinan, 250061, China
- National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan, 250061, China
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50
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Pauletto PS, Dotto GL, Salau NP. Optimal artificial neural network design for simultaneous modeling of multicomponent adsorption. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114418] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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