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Long X, Gong L, Li C. Regeneration of [Fe(
II
)‐
NTA
]
−
catalyzed by activated carbon in the simultaneous removal of sulphur dioxide and nitric oxide. CAN J CHEM ENG 2023. [DOI: 10.1002/cjce.24905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Xiang‐Li Long
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering East China University of Science and Technology Shanghai 200237 People's Republic of China
| | - Li Gong
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering East China University of Science and Technology Shanghai 200237 People's Republic of China
| | - Cong Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering East China University of Science and Technology Shanghai 200237 People's Republic of China
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Ngo TS, Tracey CT, Navrotskaya AG, Bukhtiyarov AV, Krivoshapkin PV, Krivoshapkina EF. Reusable carbon dot/chitin nanocrystal hybrid sorbent for the selective detection and removal of Cr(VI) and Co(II) ions from wastewater. Carbohydr Polym 2023; 304:120471. [PMID: 36641187 DOI: 10.1016/j.carbpol.2022.120471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Thuy S Ngo
- Energy Lab, ITMO University, 9 Lomonosova Street, St. Petersburg 191002, Russian Federation.
| | - Chantal T Tracey
- Energy Lab, ITMO University, 9 Lomonosova Street, St. Petersburg 191002, Russian Federation.
| | | | - Andrey V Bukhtiyarov
- Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Science, 5 Acad. Lavrentiev Prospekt, Novosibirsk 630090, Russian Federation.
| | - Pavel V Krivoshapkin
- Energy Lab, ITMO University, 9 Lomonosova Street, St. Petersburg 191002, Russian Federation.
| | - Elena F Krivoshapkina
- Energy Lab, ITMO University, 9 Lomonosova Street, St. Petersburg 191002, Russian Federation.
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3
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Bose S, Senthil Kumar P, Rangasamy G, Prasannamedha G, Kanmani S. A review on the applicability of adsorption techniques for remediation of recalcitrant pesticides. CHEMOSPHERE 2023; 313:137481. [PMID: 36529165 DOI: 10.1016/j.chemosphere.2022.137481] [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: 09/15/2022] [Revised: 11/22/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Pesticide has revolutionised the agricultural industry by reducing yield losses and by enhancing productivity. But indiscriminate usage of such chemicals can negatively impact human health and ecosystem balance as certain pesticides can be recalcitrant in nature. Out of some of the suggested sustainable techniques to remove the pesticide load from the environment, adsorption is found to be highly efficient and can also be implemented on a large scale. It has been observed that natural adsorption that takes place after the application of the pesticide is not enough to reduce the pesticide load, hence, adsorbents like activated carbon, plant-based adsorbents, agricultural by-products, silica materials, polymeric adsorbents, metal organic framework etc are being experimented upon. It is becoming increasingly important to choose adsorbents which will not leave any secondary pollutant after treatment and the cost of production of such adsorbent should be feasible. In this review paper, it has been established that certain adsorbent like biochar, hydrochar, resin, metal organic framework etc can efficiently remove pesticides namely chlorpyrifos, diazinon, 2,4-Dichlorophenoxyacetic Acid, atrazine, fipronil, imidacloprid etc. The mechanism of adsorption, thermodynamics and kinetic part have been discussed in detail with respect to the pesticide and adsorbent under discussion. The reason behind choosing an adsorbent for the removal of a particular pesticide have also been explained. It is further highly recommended to carry out a cost analysis before implementing an absorbent because inspite of its efficacy, it might not be cost effective to use it for a particular type of pesticide or contaminant.
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Affiliation(s)
- Sanchali Bose
- 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
| | - 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.
| | - Gayathri Rangasamy
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - G Prasannamedha
- 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
| | - S Kanmani
- Centre for Environmental Studies, Department of Civil Engineering, Anna University, Chennai, 600025, India
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Modeling of Hexavalent Chromium Removal with Hydrophobically Modified Cellulose Nanofibers. Polymers (Basel) 2022; 14:polym14163425. [PMID: 36015682 PMCID: PMC9414996 DOI: 10.3390/polym14163425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 01/18/2023] Open
Abstract
Cellulose nanofibers (CNF) are sustainable nanomaterials, obtained by the mechanical disintegration of cellulose, whose properties make them an interesting adsorbent material due to their high specific area and active groups. CNF are easily functionalized to optimize the performance for different uses. The hypothesis of this work is that hydrophobization can be used to improve their ability as adsorbents. Therefore, hydrophobic CNF was applied to adsorb hexavalent chromium from wastewater. CNF was synthetized by TEMPO-mediated oxidation, followed by mechanical disintegration. Hydrophobization was performed using methyl trimetoxysilane (MTMS) as a hydrophobic coating agent. The adsorption treatment of hexavalent chromium with hydrophobic CNF was optimized by studying the influence of contact time, MTMS dosage (0-3 mmol·g-1 CNF), initial pH of the wastewater (3-9), initial chromium concentration (0.10-50 mg·L-1), and adsorbent dosage (250-1000 mg CNF·L-1). Furthermore, the corresponding adsorption mechanism was identified. Complete adsorption of hexavalent chromium was achieved with CNF hydrophobized with 1.5 mmol MTMS·g-1 CNF with the faster adsorption kinetic, which proved the initial hypothesis that hydrophobic CNF improves the adsorption capacity of hydrophilic CNF. The optimal adsorption conditions were pH 3 and the adsorbent dosage was over 500 mg·L-1. The maximum removal was found for the initial concentrations of hexavalent chromium below 1 mg·L-1 and a maximum adsorption capacity of 70.38 mg·g-1 was achieved. The kinetic study revealed that pseudo-second order kinetics was the best fitting model at a low concentration while the intraparticle diffusion model fit better for higher concentrations, describing a multi-step mechanism of hexavalent chromium onto the adsorbent surface. The Freundlich isotherm was the best adjustment model.
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Characterization and Ofloxacin Adsorption Studies of Chemically Modified Activated Carbon from Cassava Stem. MATERIALS 2022; 15:ma15155117. [PMID: 35897550 PMCID: PMC9329759 DOI: 10.3390/ma15155117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/08/2022] [Accepted: 06/16/2022] [Indexed: 02/04/2023]
Abstract
Cassava is a type of crop popular in Asian countries. It can be easily cultivated and grows to a mature plant in 9 months. Considering its availability, this work studied activated carbon based on cassava stem. Ofloxacin was chosen as the adsorbate, simulating the wastewater from the pharmaceutical industry. Cassava stem was ground into particles and heated to the activated state, 787 °C. The cassava-stem-activated carbon was further treated with the surface modifier, namely sodium hydroxide and zinc chloride, to study the improvement in ofloxacin adsorption. Prepared adsorbents were characterised using the SEM, FT-IR, XRD, DSC and TGA methods before being evaluated through batch adsorption, thermodynamic, and kinetic studies. The surface area analysis indicates that treatment of the activated carbon with NaOH and ZnCl2 increases the surface area due to the removal of organic content by the chemicals. Better ofloxacin adsorption of all activated carbon samples can be obtained with solutions at pH 8. An endothermic reaction was predicted, shown by higher ofloxacin adsorption at a higher temperature, supported by a positive value of ΔH° in the thermodynamic studies. The negative values of ΔG° revealed that adsorptions were spontaneous. The higher R2 values indicate that the adsorption process follows the pseudo-second-order equation of kinetic study. The maximum adsorption capacities are 42.37, 62.11, 62.89 and 58.82 mg/g for raw cassava stem (RC), cassava-stem-activated carbon (AC), NaOH-modified cassava-stem-activated carbon (NAC), and ZnCl2 modified cassava-stem-activated carbon (ZAC). The adsorption capacity is good compared to previous works by other researchers, making it a possible alternative material for the pharmaceutical industry’s wastewater treatment.
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Rajapaksha AU, Selvasembian R, Ashiq A, Gunarathne V, Ekanayake A, Perera VO, Wijesekera H, Mia S, Ahmad M, Vithanage M, Ok YS. A systematic review on adsorptive removal of hexavalent chromium from aqueous solutions: Recent advances. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:152055. [PMID: 34871684 DOI: 10.1016/j.scitotenv.2021.152055] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/02/2021] [Accepted: 11/25/2021] [Indexed: 05/26/2023]
Abstract
The contamination of natural resources by hexavalent chromium (Cr(VI)) originating from natural and anthropogenic activities is a serious environmental concern. Although many articles on chromium remediation have been published, a comprehensive understanding of the mechanisms involved in remediation with different sorbents is not yet available. In this systematic review, the performance and applicability of several adsorptive materials for Cr(VI) removal from aqueous media are discussed, along with a detailed analysis of the mechanisms involved. Statistical analysis is applied to compare the efficacies of different adsorbents, while a similar approach is used to determine the effects of sorbent properties and experimental conditions on the adsorption capacity. A detailed analysis of the factors involved in fixed-bed column studies is also presented. A suitable desorption approach to the regeneration of the spent adsorbent and its adsorption performance in reuse is also examined. Among the different sorbents, nanoparticles and mineral-doped biochar were found to be the most effective sorbents, while the adsorption was higher at low pH (~4.0) than that at intermediate pH (6-8). Contrary to our expectation, adsorption was high for sorbents with low specific surface areas, suggesting that the adsorption of Cr(VI) is largely influenced by the chemical properties of the sorbents. The optimum adsorption in fixed-bed column systems is obtained at a lower Cr(VI) ion concentration, a lower influent flow rate, and a higher bed height. Since most of the studies reviewed herein were merely experimental and utilized ideal conditions with the presence of a single contaminant, i.e. Cr(VI) in water, further studies on adsorption dynamics with the presence of other interfering ions are suggested. This review is promising for the further development of Cr(VI) removal strategies and closes the research gaps pertaining to their challenges.
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Affiliation(s)
- Anushka Upamali Rajapaksha
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; Instrument Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka.
| | - Rangabhashiyam Selvasembian
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, India
| | - Ahamed Ashiq
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; Hydrometallurgy and Environment Laboratory, Robert M. Buchan Department of Mining, Queen's University, 25 Union Street, Kingston, Ontario K7L 3N6, Canada
| | - Viraj Gunarathne
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Anusha Ekanayake
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - V O Perera
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Hasintha Wijesekera
- Department of Natural Resources, Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka
| | - Shamin Mia
- Department of Agronomy, Patuakhali Science and Technology, University of Patuakhali, Bangladesh
| | - Mahtab Ahmad
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, 45320, Pakistan
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Yong Sik Ok
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea.
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Sreńscek-Nazzal J, Kamińska A, Miądlicki P, Wróblewska A, Kiełbasa K, Wróbel RJ, Serafin J, Michalkiewicz B. Activated Carbon Modification towards Efficient Catalyst for High Value-Added Products Synthesis from Alpha-Pinene. MATERIALS 2021; 14:ma14247811. [PMID: 34947405 PMCID: PMC8703386 DOI: 10.3390/ma14247811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/03/2021] [Accepted: 12/15/2021] [Indexed: 01/29/2023]
Abstract
DT0-activated carbons modified with HCl and HNO3 acids, which were used for the first time in the catalytic process of alpha-pinene isomerization, are presented in this study. The carbon materials DT0, DT0_HCl, DT0_HNO3, and DT0_HCl_HNO3 were examined with the following methods: XRF, SEM, EDX, XPS, FT-IR, XRD, and N2 adsorption at −196 °C. It was shown that DT0_HCl_HNO3-activated carbon was the most active material in the alpha-pinene isomerization process. Detailed studies of alpha-pinene isomerization were carried out over this carbon by changing the reaction parameters such as time (5–180 min) and temperature (60–175 °C). The 100% conversion of alpha-pinene was achieved at the temperature of 160 °C and catalyst content of 5 wt% after 3 h over the DT0_HCl_HNO3 catalyst. Camphene and limonene were the main products of the alpha-pinene isomerization reaction.
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Affiliation(s)
- Joanna Sreńscek-Nazzal
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
- Correspondence: (J.S.-N.); (A.W.)
| | - Adrianna Kamińska
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| | - Piotr Miądlicki
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| | - Agnieszka Wróblewska
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
- Correspondence: (J.S.-N.); (A.W.)
| | - Karolina Kiełbasa
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| | - Rafał Jan Wróbel
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
| | - Jarosław Serafin
- Barcelona Research Center in Multiscale Science and Engineering, Department of Chemical Engineering, Institute of Energy Technologies, Technical University of Catalonia, Eduard Maristany 16, 08019 Barcelona, Spain;
| | - Beata Michalkiewicz
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (A.K.); (P.M.); (K.K.); (R.J.W.); (B.M.)
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Gamboa VS, Benvenutti EV, Kinast ÉJ, Pires M, Gasparin FP, Ries LADS. Efficient removal of chromium(VI) from dilute aqueous solutions using agro-industrial residue based on parboiled-rice husk ash. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2021.1948405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | | | - Éder Júlio Kinast
- State University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marçal Pires
- Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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10
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Activated carbon supported CuSnOS catalyst with an efficient catalytic reduction of pollutants under dark condition. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116079] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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11
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Removal of phosphate and aluminum from water in single and binary systems using iron-modified carbons. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114586] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Krebsz M, Pasinszki T, Tung TT, Nine MJ, Losic D. Multiple applications of bio-graphene foam for efficient chromate ion removal and oil-water separation. CHEMOSPHERE 2021; 263:127790. [PMID: 32854003 DOI: 10.1016/j.chemosphere.2020.127790] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
This paper presents the synthesis of bio-graphene foams (bGFs) from renewable sources, and the application of bGFs as new adsorbents in removal of chromate ions and oil contaminants from waste water. A two-step synthetic method was developed to produce bGFs with unique porous architecture and high specific surface area (up to 805 m2 g-1) that is highly desirable for environmental applications. The adsorption performance of prepared bGFs for removal of chromate ions from water was studied in relation to CrO42- concentration, adsorbent load, pH, and contact time to confirm adsorption capacity, kinetics and pH dependence. The adsorption isotherms of chromate ions were consistent with the Langmuir model, revealing an outstanding adsorption capacity of 245 mg of Cr(VI)/g bGFs (pH∼7). bGFs were capable of reducing Cr(VI) in water below the maximum permissible level (0.050 mg dm-3) for human consumption (WHO). In a second application, our results convincingly showed excellent performance of bGFs in separating organic solvents and oils from water in a continuous oil-water separation process showing 99.1% and 98.8% separation efficiency for toluene and petroleum, respectively. Our findings confirm that the outstanding performance of bGFs, and suggest their use as efficient adsorbents for environmental remediation.
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Affiliation(s)
- Melinda Krebsz
- School of Chemical Engineering, The University of Adelaide, Adelaide, 5005, North Terrace, South Australia, Australia
| | - Tibor Pasinszki
- Fiji National University, Department of Chemistry, School of Pure Sciences, College of Engineering, Science & Technology, P.O.Box 7222, Nasinu, Fiji.
| | - Tran Thanh Tung
- School of Chemical Engineering, The University of Adelaide, Adelaide, 5005, North Terrace, South Australia, Australia; ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, 5005, North Terrace, South Australia, Australia.
| | - Md Julker Nine
- School of Chemical Engineering, The University of Adelaide, Adelaide, 5005, North Terrace, South Australia, Australia; ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, 5005, North Terrace, South Australia, Australia
| | - Dusan Losic
- School of Chemical Engineering, The University of Adelaide, Adelaide, 5005, North Terrace, South Australia, Australia; ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, 5005, North Terrace, South Australia, Australia.
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Zheng X, Yi M, Chen Z, Zhang Z, Ye L, Cheng G, Xiao Y. Efficient removal of As(V) from simulated arsenic‐contaminated wastewater via a novel metal–organic framework material: Synthesis, structure, and response surface methodology. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5584] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiao Zheng
- Guangxi Collaborative Innovation Center for WaterPollution Control and Water Safety in Karst Area (Guangxi Mining and Environmental Sciences LaboratoryCenter)Guilin University of Technology Guilin 541004 People's Republic of China
| | - Ming Yi
- Guangxi Collaborative Innovation Center for WaterPollution Control and Water Safety in Karst Area (Guangxi Mining and Environmental Sciences LaboratoryCenter)Guilin University of Technology Guilin 541004 People's Republic of China
| | - Zhao Chen
- Guangxi Collaborative Innovation Center for WaterPollution Control and Water Safety in Karst Area (Guangxi Mining and Environmental Sciences LaboratoryCenter)Guilin University of Technology Guilin 541004 People's Republic of China
| | - Zilong Zhang
- Guangxi Collaborative Innovation Center for WaterPollution Control and Water Safety in Karst Area (Guangxi Mining and Environmental Sciences LaboratoryCenter)Guilin University of Technology Guilin 541004 People's Republic of China
| | - Lili Ye
- Guangxi Collaborative Innovation Center for WaterPollution Control and Water Safety in Karst Area (Guangxi Mining and Environmental Sciences LaboratoryCenter)Guilin University of Technology Guilin 541004 People's Republic of China
| | - Guanwen Cheng
- Guangxi Collaborative Innovation Center for WaterPollution Control and Water Safety in Karst Area (Guangxi Mining and Environmental Sciences LaboratoryCenter)Guilin University of Technology Guilin 541004 People's Republic of China
| | - Yu Xiao
- Guangxi Collaborative Innovation Center for WaterPollution Control and Water Safety in Karst Area (Guangxi Mining and Environmental Sciences LaboratoryCenter)Guilin University of Technology Guilin 541004 People's Republic of China
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Equilibrium and kinetic studies on adsorption of chromium(VI) onto pine-needle-generated activated carbon. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1617-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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15
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Arslanoğlu H, Kaya S, Tümen F. Cr(VI) adsorption on low-cost activated carbon developed from grape marc-vinasse mixture. PARTICULATE SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1080/02726351.2019.1632399] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Hasan Arslanoğlu
- Department of Chemical Engineering, Firat University, Elazig, Turkey
| | - Semih Kaya
- Department of Chemical Engineering, Firat University, Elazig, Turkey
| | - Fikret Tümen
- Department of Chemical Engineering, Firat University, Elazig, Turkey
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Ebrahimi B, Mohammadiazar S, Ardalan S. New modified carbon based solid phase extraction sorbent prepared from wild cherry stone as natural raw material for the pre-concentration and determination of trace amounts of copper in food samples. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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17
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Valentín-Reyes J, García-Reyes RB, García-González A, Soto-Regalado E, Cerino-Córdova F. Adsorption mechanisms of hexavalent chromium from aqueous solutions on modified activated carbons. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 236:815-822. [PMID: 30776554 DOI: 10.1016/j.jenvman.2019.02.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 01/31/2019] [Accepted: 02/02/2019] [Indexed: 06/09/2023]
Abstract
Functional groups of the activated carbon play the major role in metals removal from aqueous solutions and, for this reason, different treatments can be used to modify the adsorbent surface improving the adsorption capacity for a particular pollutant. In this research, oxidation with nitric acid, heating under an inert atmosphere, and ammonia treatment were applied to modify the activated carbon surface. The modified adsorbents were used for the removal of hexavalent chromium (Cr(VI)) from aqueous solutions at different concentrations (10-500 mg L-1), pH 6, and 25 °C. Adsorption mechanisms of Cr(VI) on the activated carbon were proposed based on the surface chemistry, adsorption/reduction, and desorption experiments. Findings demonstrate that acid functional groups of the activated carbon had an important effect on the hexavalent chromium removal. For instance, a high reduction of Cr(VI) to Cr(III) (50%) was obtained by the oxidized adsorbents, whereas the heat treated adsorbents achieved a low reduction (35%), but the ammonia-treated activated carbon achieved the lowest reduction (20%). The heat-treated adsorbent showed the best Cr(VI) adsorption capacity (48 mg g-1), especially at equilibrium Cr(VI) concentration lower than 200 mg L-1, and the fastest adsorption kinetics among the studied adsorbents. Furthermore, the highest Cr(VI) desorption (90%) was achieved with 0.1 N NaOH-NaCl solutions. In summary, an anionic/reduction coupled adsorption mechanism of Cr(VI) seems to be feasible, and the heat-treated activated carbon is an interesting option for sequestering Cr(VI) species from aqueous effluents.
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Affiliation(s)
- J Valentín-Reyes
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Av. Universidad S/N, Ciudad Universitaria, San Nicolás de los Garza, N. L., 66455, Mexico
| | - R B García-Reyes
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Av. Universidad S/N, Ciudad Universitaria, San Nicolás de los Garza, N. L., 66455, Mexico.
| | - A García-González
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Av. Universidad S/N, Ciudad Universitaria, San Nicolás de los Garza, N. L., 66455, Mexico
| | - E Soto-Regalado
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Av. Universidad S/N, Ciudad Universitaria, San Nicolás de los Garza, N. L., 66455, Mexico
| | - F Cerino-Córdova
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Av. Universidad S/N, Ciudad Universitaria, San Nicolás de los Garza, N. L., 66455, Mexico
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18
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Chen X, Kuo DH, Zhang J, Lu Q, Lin J, Liao Y. Tubular bimetal oxysulfide CuMg
OS catalyst for rapid reduction of heavy metals and organic dyes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4824] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoyun Chen
- College of Materials Engineering; Fujian Agriculture & Forestry University; Fuzhou 350002 China
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Dong-Hau Kuo
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Jubin Zhang
- College of Materials Engineering; Fujian Agriculture & Forestry University; Fuzhou 350002 China
| | - Qingxin Lu
- College of Materials Engineering; Fujian Agriculture & Forestry University; Fuzhou 350002 China
| | - Jinguo Lin
- College of Materials Engineering; Fujian Agriculture & Forestry University; Fuzhou 350002 China
| | - Yiqiang Liao
- College of Materials Engineering; Fujian Agriculture & Forestry University; Fuzhou 350002 China
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19
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Preparation of N-Doped Carbon Nanosheets from Sewage Sludge for Adsorption Studies of Cr(VI) from Aqueous Solution. NANOMATERIALS 2019; 9:nano9020265. [PMID: 30781359 PMCID: PMC6410166 DOI: 10.3390/nano9020265] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/09/2019] [Accepted: 02/12/2019] [Indexed: 11/17/2022]
Abstract
Porous activated carbon with specific morphology and structure are of particular importance for waste water treatment, especially for the adsorption of toxic hexavalent chromium Cr(VI). However, the scalable and cheap production of such absorbents still suffer a grand challenge. Herein, a new type of N-doped nanosheet was innovatively prepared from easily available and low-cost sewage sludge via a facile and recyclable KOH activation method. The N-doped porous carbon nanosheets (N-SAC) produced by introduction of KOH and dicyandiamide, which performed favourable features for metal ions adsorption (93.2% for Cr(VI)) due to its high specific surface area, tuneable pore size distributions and good hydrophilicity. Additionally, the capacity also remained high after two cycles of adsorption by thermal regeneration, with 90.8% removal rate. The DFT calculation also approved that the doping of N could optimize the Mulliken charges distribution and improve the HOMO energy and improve the adsorption ability of N-SAC. This original proposal may inspire new possibility of creating porous carbon absorbents in a recyclable method.
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20
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Chen X, Kuo DH, Saragih AD, Wu ZY, Abdullah H, Lin J. The effect of the Cu+/Cu2+ ratio on the redox reactions by nanoflower CuNiOS catalysts. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.02.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Thao VD, Giang BL, Thu TV. Free-standing polypyrrole/polyaniline composite film fabricated by interfacial polymerization at the vapor/liquid interface for enhanced hexavalent chromium adsorption. RSC Adv 2019; 9:5445-5452. [PMID: 35515949 PMCID: PMC9060806 DOI: 10.1039/c8ra10478f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 02/05/2019] [Indexed: 12/03/2022] Open
Abstract
Interfacial polymerization is an innovative technique for the fabrication of polymeric films. However, the majority of studies on interfacial polymerization has focused on liquid/liquid interfaces, and little work has been done on vapor/liquid interfaces. In this paper, we present the fabrication of free-standing polypyrrole/polyaniline (PPy/PANI) composite films by interfacial polymerization at a vapor/liquid interface using FeCl3 as an oxidant. The obtained PPy/PANI composite films were characterized using Fourier transform infrared spectroscopy, X-ray diffractometry, and scanning electron microscopy. It was found that the PPy/PANI composite films consist of PANI particles evenly distributed on porous PPy film. The influence of FeCl3 concentration on the morphology of the resulting composite films was investigated. The PPy/PANI composite films show an excellent Cr(vi) adsorption capacity of 256.41 mg g−1, much higher than that of PPy-based absorbents prepared from chemical and electrochemical polymerization routes. This work thus suggests a new route for the fabrication of PPy/PANI films with highly enhanced Cr(vi) adsorption capacity for practical applications. Free-standing polypyrrole/polyaniline composite film fabricated by interfacial polymerization at vapor/liquid interface.![]()
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Affiliation(s)
- Vu Dinh Thao
- Department of Chemical Engineering
- Le Quy Don Technical University
- Hanoi 100000
- Vietnam
| | - Bach Long Giang
- NTT Institute of Hi-Technology
- Nguyen Tat Thanh University
- Ho Chi Minh City
- Vietnam
| | - Tran Viet Thu
- Institute of Research and Development
- Duy Tan University
- Da Nang 550000
- Vietnam
- Department of Chemical Engineering
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22
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Shi S, Yang J, Liang S, Li M, Gan Q, Xiao K, Hu J. Enhanced Cr(VI) removal from acidic solutions using biochar modified by Fe 3O 4@SiO 2-NH 2 particles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:499-508. [PMID: 29453179 DOI: 10.1016/j.scitotenv.2018.02.091] [Citation(s) in RCA: 155] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/05/2018] [Accepted: 02/08/2018] [Indexed: 06/08/2023]
Abstract
Fe3O4@SiO2-NH2 magnetic particles with core-shell structure were attached on carboxylated biochar derived from phoenix tree leaves to synthesize a novel magnetic biochar for removing Cr(VI) ions from acidic solutions. FSEM, FTEM, XRD characterizations of the synthesized magnetic biochar revealed that the Fe3O4@SiO2-NH2 magnetic particles distributed uniformly on the surface or macrospores of carboxylated biochar by strong chemical bonding. The Cr(VI) ions adsorption capacity of magnetic biochar was 27.2mg·g-1, surpassing original carboxylated biochar (18.2mg·g-1). VSM and XPS characterizations demonstrated that the attached Fe3O4@SiO2-NH2 magnetic particles not only endowed biochar with perfect magnetic property (23emu·g-1) but also provided complexing sites for binding Cr(III) cations reduced from Cr(VI) anions. The Cr(VI) ions removal by magnetic biochar contained three steps: (1) adsorption of Cr(VI) anions by protonated functional groups; (2) reduction of Cr(VI) anions to Cr(III) cations by electron-donor groups; and (3) chelation of Cr(III) cations by amine groups. The adsorption recycling test showed that magnetic biochar kept 85% of its initial Cr(VI) adsorption capacity at the sixth cycle, and the Fe leakage under pH1.0 was smaller than 0.25mg·L-1. The results indicated that this novel magnetic biochar was applicable for the practical treatment of Cr(VI)-containing wastewater.
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Affiliation(s)
- Shunquan Shi
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Jiakuan Yang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Sha Liang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
| | - Mingyang Li
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Quan Gan
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Keke Xiao
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Jingping Hu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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23
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Zhang C, Xiao Y, Qin Y, Sun Q, Zhang S. A novel highly efficient adsorbent {[Co4(L)2(μ3-OH)2(H2O)3(4,4′-bipy)2]·(H2O)2}n: Synthesis, crystal structure, magnetic and arsenic (V) absorption capacity. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.02.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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24
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Li K, Liu S, Song X, Wang C, Ning P, Fan M, Sun X. Catalytic Oxidation of Hydrogen Sulfide on Fe/WSAC Catalyst Surface Modification via NH3-NTP: Influence of Gas Gap and Dielectric Thickness. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b05079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kai Li
- Department
of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Sijian Liu
- Department
of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Xin Song
- Department
of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | | | | | - Maohong Fan
- Department
of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
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25
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Shen C, Zhou W, Yu H, Du L. Ni nanoparticles supported on carbon as efficient catalysts for steam reforming of toluene (model tar). Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2017.03.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Choi K, Lee S, Park JO, Park JA, Cho SH, Lee SY, Lee JH, Choi JW. Chromium removal from aqueous solution by a PEI-silica nanocomposite. Sci Rep 2018; 8:1438. [PMID: 29362435 PMCID: PMC5780388 DOI: 10.1038/s41598-018-20017-9] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 01/11/2018] [Indexed: 11/16/2022] Open
Abstract
It is essential and important to determine the adsorption mechanism as well as removal efficiency when using an adsorption technique to remove toxic heavy metals from wastewater. In this research, the removal efficiency and mechanism of chromium removal by a silica-based nanoparticle were investigated. A PEI-silica nanoparticle was synthesized by a one-pot technique and exhibited uniformly well-dispersed PEI polymers in silica particles. The adsorption capacity of chromium ions was determined by a batch adsorption test, with the PEI-silica nanoparticle having a value of 183.7 mg/g and monolayer sorption. Adsorption of chromium ions was affected by the solution pH and altered the nanoparticle surface chemically. First principles calculations of the adsorption energies for the relevant adsorption configurations and XPS peaks of Cr and N showed that Cr(VI), [HCrO4]- is reduced to two species, Cr(III), CrOH2+ and Cr3+, by an amine group and that Cr(III) and Cr(VI) ions are adsorbed on different functional groups, oxidized N and NH3+.
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Affiliation(s)
- Keunsu Choi
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea
| | - Soonjae Lee
- Department of Earth and Environmental Sciences, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Jin Ock Park
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Jeong-Ann Park
- Center for Water Resource Cycle Research, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - So-Hye Cho
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
- Division of Nano & Information Technology, KIST School, Korea University of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Seung Yong Lee
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
- Division of Nano & Information Technology, KIST School, Korea University of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
| | - Jun Hee Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea.
| | - Jae-Woo Choi
- Center for Water Resource Cycle Research, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
- Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
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27
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Suo F, Xie G, Zhang J, Li J, Li C, Liu X, Zhang Y, Ma Y, Ji M. A carbonised sieve-like corn straw cellulose–graphene oxide composite for organophosphorus pesticide removal. RSC Adv 2018; 8:7735-7743. [PMID: 35539124 PMCID: PMC9078477 DOI: 10.1039/c7ra12898c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 02/12/2018] [Indexed: 12/17/2022] Open
Abstract
The development of efficient adsorbents for the removal of organophosphorus pesticides from water is a major challenge. In this work, we prepared an activated carbon derived from sieve-like cellulose/graphene oxide composites (ACCE/G) for the removal of several organophosphorus pesticides. We employed corn straw to produce a sieve-like cellulose–graphene oxide composite (CCE/G); then, by treating CCE/G with potassium hydroxide at high temperatures, the efficient adsorbent ACCE/G was prepared. The adsorption capacity of ACCE/G is higher than those of other sorbents, including a multi-wall carbon nanotube, graphitised carbon black, activated carbon, C18, and primary secondary amine adsorbent. The ACCE/G structure has been fully characterised via scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and Brunauer–Emmett–Teller analysis. The maximum adsorption capacity of ACCE/G is 152.5 mg g−1 for chlorpyrifos. The mechanism, the thermodynamic properties, and the kinetics of the adsorption process have been investigated as well. Our findings demonstrate that the adsorption mechanism depends on the electron-donating abilities of the S and P atoms. Moreover, the Langmuir model gives the best fit for the isotherm data, and the adsorption efficiency of the ACCE/G is still over 80% after eight times of recycling, making ACCE/G a valuable candidate for the removal of OPPs. Synthesizing a reusable adsorbent from waste corn straw is a sustainable way to utilize secondary resources and purify water.![]()
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Affiliation(s)
- Fengyue Suo
- College of Plant Protection
- Shenyang Agricultural University
- Shenyang 110866
- China
| | - Guixian Xie
- College of Resources and Environment
- Hunan Agricultural University
- Changsha 410128
- China
| | - Jie Zhang
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Jingyu Li
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Changsheng Li
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Xue Liu
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Yunpeng Zhang
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Yongqiang Ma
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - MingShan Ji
- College of Plant Protection
- Shenyang Agricultural University
- Shenyang 110866
- China
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28
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Zhang J, Chen S, Zhang H, Wang X. Removal behaviors and mechanisms of hexavalent chromium from aqueous solution by cephalosporin residue and derived chars. BIORESOURCE TECHNOLOGY 2017; 238:484-491. [PMID: 28475990 DOI: 10.1016/j.biortech.2017.04.081] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/18/2017] [Accepted: 04/21/2017] [Indexed: 05/20/2023]
Abstract
Cephalosporin residue (CR) was used to produce biochar (BC) and activated carbon (AC) at 600°C (BC600 and AC600). To compare the removal behaviors and mechanisms of Cr(VI) by CR and derived chars, batch adsorption tests were performed in Cr(VI) microenvironment like pH, Cr(VI) concentration, adsorbent dosage, combing with the characterization of adsorbents before and after adsorption. Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), and Brunauer-Emmett-Teller (BET) techniques were used. Results showed that the Cr(VI) removals by CR and CR-chars fitted Freundlich and Langmuir models. Based on the Langmuir model, the maximum adsorption capacities of CR, BC600 and AC600 towards Cr(VI) were 107.41, 88.19 and 74.07mgg-1, respectively. The CR rich in dissolved carbon (DOC), -NH2 and -COOH, chiefly acted as chelating and reducing agents, while the AC600 with high surface area mainly supported Cr(VI) adsorption during Cr(VI) removal process.
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Affiliation(s)
- Jishi Zhang
- School of Environmental Science and Engineering, Qilu University of Technology, Jinan 250353, China.
| | - Shujun Chen
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, China
| | - Huiwen Zhang
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Xikui Wang
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, China
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29
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Ko YJ, Choi K, Lee S, Cho JM, Choi HJ, Hong SW, Choi JW, Mizuseki H, Lee WS. Chromate adsorption mechanism on nanodiamond-derived onion-like carbon. JOURNAL OF HAZARDOUS MATERIALS 2016; 320:368-375. [PMID: 27573870 DOI: 10.1016/j.jhazmat.2016.08.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 08/12/2016] [Accepted: 08/15/2016] [Indexed: 06/06/2023]
Abstract
The onion-like carbon (OLC) was prepared as adsorbent and tested for the removal of chromate ions from aqueous solutions. The OLC was thermally derived from nanodiamond by vacuum annealing at 1000-2000°C. An investigation was conducted the chromate adsorption mechanism of OLC, by analysing the temperature-dependent evolution of the various oxygen-carbon bonds and the chemisorbed water by X-ray photo electron spectroscopy, as well as by the first principle calculation of the bond energies for relevant bond configurations. The present work demonstrated the importance of the carbon-oxygen bond type and carbon dangling bonds for chromate adsorption, as well as for other anionic heavy metals adsorbed from wastewater and sewage.
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Affiliation(s)
- Young-Jin Ko
- Center for Electronic Materials, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea, Republic of Korea
| | - Keunsu Choi
- Computational Science Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea, Republic of Korea
| | - Soonjae Lee
- Department of Earth and Environmental Sciences, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea, Republic of Korea
| | - Jung-Min Cho
- Center for Electronic Materials, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea, Republic of Korea; Department of Materials Science and Engineering, Yonsei University, 262 Seongsanno, Seodaemun-Gu, Seoul 120-749, Republic of Korea, Republic of Korea
| | - Heon-Jin Choi
- Department of Materials Science and Engineering, Yonsei University, 262 Seongsanno, Seodaemun-Gu, Seoul 120-749, Republic of Korea, Republic of Korea
| | - Seok Won Hong
- Center for Water Resource Cycle Research, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea, Republic of Korea
| | - Jae-Woo Choi
- Center for Water Resource Cycle Research, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea, Republic of Korea; Department of Energy and Environmental Engineering, University of Science and Technology (UST), Daejeon 305-350, Republic of Korea, Republic of Korea.
| | - Hiroshi Mizuseki
- Computational Science Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea, Republic of Korea.
| | - Wook-Seong Lee
- Center for Electronic Materials, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea, Republic of Korea.
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30
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Enhancement of Pb2+ removal by activating carbon spheres/activated carbon composite material with H2O vapor. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.07.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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MAHMOUD ME, YAKOUT AA, HALBAS AM, OSMAN MM. Remediation of Cr(VI) via combined self-reduction and adsorption bychemically modified carbon sorbents. Turk J Chem 2016. [DOI: 10.3906/kim-1603-16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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32
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Kim MJ, Jung MJ, Kim MI, Choi SS, Lee YS. Adsorption Characteristics of Toluene Gas Using Fluorinated Phenol-based Activated Carbons. APPLIED CHEMISTRY FOR ENGINEERING 2015. [DOI: 10.14478/ace.2015.1083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Netzahuatl-Muñoz AR, Cristiani-Urbina MDC, Cristiani-Urbina E. Chromium Biosorption from Cr(VI) Aqueous Solutions by Cupressus lusitanica Bark: Kinetics, Equilibrium and Thermodynamic Studies. PLoS One 2015; 10:e0137086. [PMID: 26352933 PMCID: PMC4564179 DOI: 10.1371/journal.pone.0137086] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 08/13/2015] [Indexed: 11/18/2022] Open
Abstract
The present study investigated the kinetics, equilibrium and thermodynamics of chromium (Cr) ion biosorption from Cr(VI) aqueous solutions by Cupressus lusitanica bark (CLB). CLB total Cr biosorption capacity strongly depended on operating variables such as initial Cr(VI) concentration and contact time: as these variables rose, total Cr biosorption capacity increased significantly. Total Cr biosorption rate also increased with rising solution temperature. The pseudo-second-order model described the total Cr biosorption kinetic data best. Langmuir´s model fitted the experimental equilibrium biosorption data of total Cr best and predicted a maximum total Cr biosorption capacity of 305.4 mg g(-1). Total Cr biosorption by CLB is an endothermic and non-spontaneous process as indicated by the thermodynamic parameters. Results from the present kinetic, equilibrium and thermodynamic studies suggest that CLB biosorbs Cr ions from Cr(VI) aqueous solutions predominantly by a chemical sorption phenomenon. Low cost, availability, renewable nature, and effective total Cr biosorption make CLB a highly attractive and efficient method to remediate Cr(VI)-contaminated water and wastewater.
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Affiliation(s)
- Alma Rosa Netzahuatl-Muñoz
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México, D.F., México
- Universidad Politécnica de Tlaxcala, San Pedro Xalcaltzinco, Tepeyanco, Tlaxcala, México
| | | | - Eliseo Cristiani-Urbina
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México, D.F., México
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34
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Melo SDS, Diniz JEDM, Guimarães JH, Costa JDS, Brasil DDSB, de Morais SSDS, Brito DC, Carvalho JCT, Dos Santos CBR, da Silva DL. Production and characterization of absorbent heat from the bark of residual Brazil nut bark (Bertholletia Excelsa l.). Chem Cent J 2015; 9:36. [PMID: 26150893 PMCID: PMC4491886 DOI: 10.1186/s13065-015-0114-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 06/11/2015] [Indexed: 11/15/2022] Open
Abstract
Background The increasing efforts to reduce the environmental impact on the Amazon’s natural resources are focusing on watercourses that pass through effluents with high concentrations of heavy metals. The adsorption by absorbent is one of the methods used to remove metallic ions. In this assignment, the preparation of activated carbon from Brazil nut bark (Bertholletia excelsa l.), which is a waste material produced from the use of seeds in foodstuffs and cosmetics, is shown. Results The absorbent was carbonized at 400 °C in 3 h and activated at 800 °C in 2 h, having received the name of AC2, and, the specific area, pore size, real and apparent densities, porosity, scanning electron microscopy (SEM) coupled to energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), pH, moisture, fixed carbon and surface functional groups by Boehm method and Fourier transformed infrared spectroscopy (FTIR) were characterized. According to the results, the carbon presented alkaline characteristic, mesoporosity, average pore diameters of 2.203 nm and specific surface area by BET of 464.835 m2 g-1. The efficiency of removal was performed in synthetic solutions of copper sulphate (II) pentahydrate (CuSO4.5H2O), evaluating the influence of pH, initial concentration of copper solution (II), particle diameter and time contact of the adsorbent in solution. The results of higher removal percentages were to pH 5.09, initial concentration of 50, 100 and 150 mg-1 diameter 0.595 < D < 1.19 mm and time contact of 5 min. Conclusions The Brazil nut bark is shown to be an important bio-waste, being an excellent alternative material for the low-cost production of activated carbon for use in processes involving iterations of adsorption.
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Affiliation(s)
- Selma Dos Santos Melo
- Laboratory of Environmental Processes, Federal University of Pará, Rua Augusto Corrêa, 01, Belém, Pará 66075-110 Brazil
| | - Joel Estevão de Melo Diniz
- Laboratory of Physical Chemistry, State University of Amapá, Av. Presidente Vargas, Campus I, 650, Macapá, Amapá 68900-070 Brazil ; Laboratory of General and Analytical Chemistry, Federal University of Amapá, Rod. JK Km 2, s/n, Macapá, Amapá 68902-280 Brazil
| | - Jonilson Heslei Guimarães
- Laboratory of Physical Chemistry, State University of Amapá, Av. Presidente Vargas, Campus I, 650, Macapá, Amapá 68900-070 Brazil
| | - Josivan da Silva Costa
- Laboratory of General and Analytical Chemistry, Federal University of Amapá, Rod. JK Km 2, s/n, Macapá, Amapá 68902-280 Brazil
| | | | | | - Daímio Chaves Brito
- Laboratory of Physical Chemistry, State University of Amapá, Av. Presidente Vargas, Campus I, 650, Macapá, Amapá 68900-070 Brazil
| | - José Carlos Tavares Carvalho
- Laboratory of General and Analytical Chemistry, Federal University of Amapá, Rod. JK Km 2, s/n, Macapá, Amapá 68902-280 Brazil
| | | | - Denilson Luz da Silva
- Laboratory of Environmental Processes, Federal University of Pará, Rua Augusto Corrêa, 01, Belém, Pará 66075-110 Brazil
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35
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Abdullah N, Mohamad IS, Abd Hamid SB. Removal of Iron, Manganese and Boron from Industrial Effluent Water Using Carbon Nanofibers. ADVANCED MATERIALS RESEARCH 2015; 1109:158-162. [DOI: 10.4028/www.scientific.net/amr.1109.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Carbon based materials are widely used as an absorbent to study the adsorption capacity of several metal ions (Fe, Mn, B) from industrial effluent water. In this project, three types of carbon materials were selected; (1) activated carbon (AC), (2) Carbon nanofibers supported on activated carbon (CNF-AC) and (3) commercial carbon nanofibers (CNF-C). CNF-AC is physically in the form of nanofibers which directly attached onto activated carbon surface, meanwhile CNF-C is un-attached/loose nanofibers. It was found that pH of effluent water and the type of adsorbent play important roles for adsorption of metal ions. The higher adsorption of iron ions was observed when the pH of effluent water adjusted to pH 6 with an adsorbent capacity order is CNF-AC>CNF-C>AC. Furthermore, the adsorption order for manganese ion represent as AC>CNF-AC>CNF-C. Different behavior was observed for boron ions which show higher adsorption at pH 4 with the affinities order is CNF-AC>CNF-C>AC. The results show that CNF-AC has a potential to be used as effective adsorbent for removal of metal ion from industrial effluent water for environment protection.
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36
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Daoud W, Ebadi T, Fahimifar A. Optimization of hexavalent chromium removal from aqueous solution using acid-modified granular activated carbon as adsorbent through response surface methodology. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-014-0337-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Kim MJ, Jung MJ, Choi SS, Lee YS. Effects of the Fluorination of Activated Carbons on the Chromium Ion Adsorption. APPLIED CHEMISTRY FOR ENGINEERING 2015. [DOI: 10.14478/ace.2014.1126] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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38
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Zhang J, Shang T, Jin X, Gao J, Zhao Q. Study of chromium(vi) removal from aqueous solution using nitrogen-enriched activated carbon based bamboo processing residues. RSC Adv 2015. [DOI: 10.1039/c4ra11016a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nitrogen functional groups were introduced by urea and melamine onto the surface of two bamboo processing residues derived activated carbons (ACs) and Cr(vi) adsorption was investigated by changing various parameters.
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Affiliation(s)
- Ji Zhang
- MOE Key Laboratory of Wooden Material Science and Application
- Beijing Key Laboratory of Lignocellulosic Chemistry
- MOE Engineering Research Centre of Forestry Biomass Materials and Bioenergy
- Beijing Forestry University
- Beijing
| | - Tongxin Shang
- MOE Key Laboratory of Wooden Material Science and Application
- Beijing Key Laboratory of Lignocellulosic Chemistry
- MOE Engineering Research Centre of Forestry Biomass Materials and Bioenergy
- Beijing Forestry University
- Beijing
| | - Xiaojuan Jin
- MOE Key Laboratory of Wooden Material Science and Application
- Beijing Key Laboratory of Lignocellulosic Chemistry
- MOE Engineering Research Centre of Forestry Biomass Materials and Bioenergy
- Beijing Forestry University
- Beijing
| | - Jianmin Gao
- MOE Key Laboratory of Wooden Material Science and Application
- Beijing Key Laboratory of Lignocellulosic Chemistry
- MOE Engineering Research Centre of Forestry Biomass Materials and Bioenergy
- Beijing Forestry University
- Beijing
| | - Qiang Zhao
- MOE Key Laboratory of Wooden Material Science and Application
- Beijing Key Laboratory of Lignocellulosic Chemistry
- MOE Engineering Research Centre of Forestry Biomass Materials and Bioenergy
- Beijing Forestry University
- Beijing
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39
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Lv Z, Liang C, Cui J, Zhang Y, Xu S. A facile route for the synthesis of mesoporous melamine-formaldehyde resins for hexavalent chromium removal. RSC Adv 2015. [DOI: 10.1039/c4ra16866f] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile route for the synthesis of mesoporous melamine-formaldehyde resins (MMF) for hexavalent chromium removal.
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Affiliation(s)
- Zhongfei Lv
- Shanghai Key Laboratory of Advanced Polymeric Material
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Changsheng Liang
- Shanghai Key Laboratory of Advanced Polymeric Material
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Jiayang Cui
- Shanghai Key Laboratory of Advanced Polymeric Material
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Yanan Zhang
- Shanghai Key Laboratory of Advanced Polymeric Material
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Shiai Xu
- Shanghai Key Laboratory of Advanced Polymeric Material
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
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40
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Liu H, Zhang J, Ngo HH, Guo W, Wu H, Cheng C, Guo Z, Zhang C. Carbohydrate-based activated carbon with high surface acidity and basicity for nickel removal from synthetic wastewater. RSC Adv 2015. [DOI: 10.1039/c5ra08987e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The feasibility of preparing activated carbon from carbohydrates (glucose, sucrose and starch) with H3PO4 activation was evaluated by comparing its physicochemical properties and Ni(ii) adsorption ability with a reference Phragmites australis-based activated carbon.
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Affiliation(s)
- Hai Liu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Shandong University
- Jinan 250100
- China
| | - Jian Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Shandong University
- Jinan 250100
- China
| | - Huu Hao Ngo
- School of Civil and Environmental Engineering
- University of Technology Sydney
- Broadway
- Australia
| | - Wenshan Guo
- School of Civil and Environmental Engineering
- University of Technology Sydney
- Broadway
- Australia
| | - Haiming Wu
- College of Resources and Environment
- Northwest A & F University
- Yangling
- China
| | - Cheng Cheng
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Shandong University
- Jinan 250100
- China
| | - Zizhang Guo
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Shandong University
- Jinan 250100
- China
| | - Chenglu Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Shandong University
- Jinan 250100
- China
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41
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Asav E, Sezgintürk MK. A novel impedimetric disposable immunosensor for rapid detection of a potential cancer biomarker. Int J Biol Macromol 2014; 66:273-80. [DOI: 10.1016/j.ijbiomac.2014.02.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 02/11/2014] [Accepted: 02/13/2014] [Indexed: 12/16/2022]
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42
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Li B, Ma L, Tian Y, Yang X, Li J, Bai C, Yang X, Zhang S, Li S, Jin Y. A catechol-like phenolic ligand-functionalized hydrothermal carbon: one-pot synthesis, characterization and sorption behavior toward uranium. JOURNAL OF HAZARDOUS MATERIALS 2014; 271:41-49. [PMID: 24598030 DOI: 10.1016/j.jhazmat.2014.01.060] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/24/2013] [Accepted: 01/30/2014] [Indexed: 06/03/2023]
Abstract
We proposed a new approach for preparing an efficient uranium-selective solid phase extractant (HTC-btg) by choosing bayberry tannin as the main building block and especially glyoxal as crosslinking agent via a simple, economic, and green one-pot hydrothermal synthesis. The results of characterization and analysis show that after addition of glyoxal into only bayberry tannin-based hydrothermal reaction system, the as-synthesized HTC-btg displayed higher thermal stability, larger specific surface area and more than doubled surface phenolic hydroxyl groups. The sorption behavior of the sorbents toward uranium under various conditions was investigated in detail and the results indicated that the process is fast, endothermic, spontaneous, and pseudo-second-order chemisorption. The U(VI) sorption capacity reached up to 307.3 mg g(-1) under the current experimental conditions. The selective sorption in a specially designed multi-ion solution containing 12 co-existing cations over the range of pH 1.0-4.5 shown that the amount of uranium sorbed accounts for about 53% of the total sorption amount at pH 4.5 and distinctively about 85%, unreported so far to our knowledge, at pH 2.0. Finally, a possible mechanism involving interaction between uranyl ions and phenolic hydroxyl groups on HTC-btg was proposed.
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Affiliation(s)
- Bo Li
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China
| | - Lijian Ma
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China
| | - Yin Tian
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China
| | - Xiaodan Yang
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China
| | - Juan Li
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China
| | - Chiyao Bai
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China
| | - Xiaoyu Yang
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China
| | - Shuang Zhang
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China
| | - Shoujian Li
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China.
| | - Yongdong Jin
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology (Sichuan University), Ministry of Education, Chengdu 610064, PR China.
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43
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Mahmoud ME, Mohamed RHA. Separation of Cr(VI) from Water by Green Reduction Reaction and Adsorptive Removal on Gelatin-Grafted-Yeast Biosorbent. SEP SCI TECHNOL 2014. [DOI: 10.1080/01496395.2013.863336] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Corredor CR, García MG, Dobrosz-Gómez I. Adsorptive Removal of Cr(VI) from Aqueous Solution on Hydrous Cerium—Zirconium Oxide. Part I: Process Optimization by Response Surface Methodology. ADSORPT SCI TECHNOL 2014. [DOI: 10.1260/0263-6174.32.2-3.209] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
| | - M.Á. Gómez García
- Departamento de Ingeniería Química, Facultad de Ingeniería y Arquitectura
| | - I. Dobrosz-Gómez
- Departamento de Física y Química, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Colombia, Sede Manizales, Campus La Nubia, Km 9 vía al Aeropuerto la Nubia, Apartado Aéreo 127, Manizales, Caldas, Colombia
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45
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Lu X, Jiang J, Sun K, Wang J, Zhang Y. Influence of the pore structure and surface chemical properties of activated carbon on the adsorption of mercury from aqueous solutions. MARINE POLLUTION BULLETIN 2014; 78:69-76. [PMID: 24286751 DOI: 10.1016/j.marpolbul.2013.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 10/31/2013] [Accepted: 11/11/2013] [Indexed: 06/02/2023]
Abstract
Reactivation and chemical modification were used to obtain modified activated carbons with different pore structure and surface chemical properties. The samples were characterized by nitrogen absorption-desorption, Fourier transform infrared spectroscopy and the Bothem method. Using mercury chloride as the target pollutant, the Hg(2+) adsorption ability of samples was investigated. The results show that the Hg(2+) adsorption capacity of samples increased significantly with increases in micropores and acidic functional groups and that the adsorption process was exothermic. Different models and thermodynamic parameters were evaluated to establish the mechanisms. It was concluded that the adsorption occurred through a monolayer mechanism by a two-speed process involving both rapid adsorption and slow adsorption. The adsorption rate was determined by chemical reaction.
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Affiliation(s)
- Xincheng Lu
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, Jiangsu Province, China; Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu Province, China; Key Lab. of Biomass Energy and Material, Nanjing 210042, Jiangsu Province, China
| | - Jianchun Jiang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, Jiangsu Province, China; Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu Province, China; Key Lab. of Biomass Energy and Material, Nanjing 210042, Jiangsu Province, China.
| | - Kang Sun
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, Jiangsu Province, China; Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu Province, China; Key Lab. of Biomass Energy and Material, Nanjing 210042, Jiangsu Province, China
| | - Jinbiao Wang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, Jiangsu Province, China; Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu Province, China; Key Lab. of Biomass Energy and Material, Nanjing 210042, Jiangsu Province, China
| | - Yanping Zhang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, Jiangsu Province, China; Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu Province, China; Key Lab. of Biomass Energy and Material, Nanjing 210042, Jiangsu Province, China
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46
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Xiao Z, Peng F, Li X, Zhang R, He W, Zhou T. Surface modification of malonic acid-catalyzed carbon xerogels and their high performance for adsorption of Cu (II) ions. SURF INTERFACE ANAL 2013. [DOI: 10.1002/sia.5334] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhenghui Xiao
- School of Chemical Engineering, Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
| | - Fangfang Peng
- School of Chemical Engineering, Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
| | - Xueliang Li
- School of Chemical Engineering, Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
| | - Rui Zhang
- School of Chemical Engineering, Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
| | - Wenxiang He
- School of Chemical Engineering, Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
| | - Taofa Zhou
- School of Resources and Environmental Engineering; Hefei University of Technology; Hefei Anhui 230009 China
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47
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Erduran N, Gökgöz M, Ada K. Adsorption of chromium(VI) metal ions from aqueous solution using hexagonal ZnO particles: Equilibrium, kinetic and thermodynamic modelling studies. CAN J CHEM ENG 2013. [DOI: 10.1002/cjce.21836] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nuran Erduran
- Faculty of Sciences and Arts, Department of Chemistry; Kırıkkale University; 71450 Kırıkkale Turkey
| | - Murat Gökgöz
- Faculty of Sciences and Arts, Department of Chemistry; Kırıkkale University; 71450 Kırıkkale Turkey
- Faculty of Health Sciences; Department of Nutrition and Dietetics, Kırıkkale University; 71450 Kırıkkale Turkey
| | - Kezban Ada
- Faculty of Sciences and Arts, Department of Chemistry; Kırıkkale University; 71450 Kırıkkale Turkey
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48
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Singha S, Sarkar U, Luharuka P. Functionalized granular activated carbon and surface complexation with chromates and bi-chromates in wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 447:472-487. [PMID: 23410869 DOI: 10.1016/j.scitotenv.2013.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 12/28/2012] [Accepted: 01/01/2013] [Indexed: 06/01/2023]
Abstract
Cr(VI) is present in the aqueous medium as chromate (CrO4(2-)) and bi-chromate (HCrO4(-)). Functionalized granular activated carbons (FACs) are used as adsorbents in the treatment of wastewaters containing hexavalent chromium. The FACs are prepared by chemical modifications of granular activated carbons (GACs) using functionalizing agents like HNO3, HCl and HF. The Brunauer, Emmett and Teller surface areas of FAC-HCl (693.5m(2)/g), FAC-HNO3 (648.8m(2)/g) and FAC-HF (726.2m(2)/g) are comparable to the GAC (777.7m(2)/g). But, the adsorption capacity of each of the FAC-HNO3, FAC-HCl and FAC-HF is found to be higher than the GAC. The functional groups play an important role in the adsorption process and pH has practically no role in this specific case. The FACs have hydrophilic protonated external surfaces in particular, along with the functional surface sites capable to make complexes with the CrO4(2-) and HCrO4(-) present. Surface complex formation is maximized in the order FAC-HNO3>FAC-HF>FAC-HCl, in proportion to the total surface acidity. This is also confirmed by the well-known pseudo second-order kinetic model. Physi-sorption equilibrium isotherms are parameterized by using standard Freundlich and Langmuir models. Langmuir fits better. The formation of surface complexes with the functional groups and hexavalent chromium is also revealed in the images of field emission scanning electron micrograph; energy dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy analysis after adsorption. The intra-particle diffusion is not the only rate-controlling factor. The Boyd's film diffusion model fits very well with R(2) as high as 98.1% for FAC-HNO3. This result demonstrates that the functionalization of the GAC by acid treatments would increase the diffusion rate, predominantly with a boundary layer diffusion effect.
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Affiliation(s)
- Somdutta Singha
- Department of Chemical Engineering, Jadavpur University, Jadavpur, Kolkata-700032, West Bengal, India
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49
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Magnetite nanoparticles for removal of heavy metals from aqueous solutions: synthesis and characterization. ADSORPTION 2013. [DOI: 10.1007/s10450-012-9468-1] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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50
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Ademiluyi FT, David-West EO. Effect of Chemical Activation on the Adsorption of Heavy Metals Using Activated Carbons from Waste Materials. ACTA ACUST UNITED AC 2012. [DOI: 10.5402/2012/674209] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The effect of chemical activation on the adsorption of metals ions (Cr2+, Cu2+, Ni2+, Pb2+, Fe2+, and Zn2+) using waste Nigerian based bamboo, coconut shell, and palm kernel shell was investigated. The bamboo, coconut, and palm kernel shell were carbonized at 400°C–500°C and activated at 800°C using six activating agents. Chemical activation had significant effect on the iodine number and invariably increased the micropores and macropores of the activated carbons produced from bamboo, coconut, and palm kernel shell. It also affected the adsorption of metal ions and the type of carboneous material used for activation. The highest metal ions adsorbed were obtained from bamboo activated with HNO3. The cellulose nitrite formed during the activation of bamboo with HNO3 combined with high pore volume and low ash content of bamboo effectively create more reaction sites for adsorption of different metal ions. This shows that waste bamboo activated with HNO3 can effectively be used to remove metal ions from waste streams and in different metal recovery processes than activated carbon from coconut shell and palm kernel shell.
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Affiliation(s)
- F. T. Ademiluyi
- Department of Chemical/Petrochemical Engineering, Rivers State University of Science and Technology, Port Harcourt, Nigeria
| | - E. O. David-West
- Department of Chemical/Petrochemical Engineering, Rivers State University of Science and Technology, Port Harcourt, Nigeria
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