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Azoulay A, Aloni SS, Xing L, Tashakory A, Mastai Y, Shalom M. Polymeric Carbon Nitride with Chirality Inherited from Supramolecular Assemblies. Angew Chem Int Ed Engl 2023; 62:e202311389. [PMID: 37581951 DOI: 10.1002/anie.202311389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 08/13/2023] [Accepted: 08/15/2023] [Indexed: 08/17/2023]
Abstract
The facile synthesis of chiral materials is of paramount importance for various applications. Supramolecular preorganization of monomers for thermal polymerization has been proven as an effective tool to synthesize carbon and carbon nitride-based (CN) materials with ordered morphology and controlled properties. However, the transfer of an intrinsic chemical property, such as chirality from supramolecular assemblies to the final material after thermal condensation, was not shown. Here, we report the large-scale synthesis of chiral CN materials capable of enantioselective recognition. To achieve this, we designed supramolecular assemblies with a chiral center that remains intact at elevated temperatures. The optimized chiral CN demonstrates an enantiomeric preference of ca. 14 %; CN electrodes were also prepared and show stereoselective interactions with enantiomeric probes in electrochemical measurements. By adding chirality to the properties transferrable from monomers to the final product of a thermal polymerization, this study confirms the potential of using supramolecular precursors to produce carbon and CN materials and electrodes with designed chemical properties.
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Affiliation(s)
- Adi Azoulay
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Sapir Shekef Aloni
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Lidan Xing
- School of Chemistry, South China Normal University, Guangzhou, 510006, China
| | - Ayelet Tashakory
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Yitzhak Mastai
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Menny Shalom
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
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2
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Escudero-Curiel S, Pazos M, Sanromán A. Facile one-step synthesis of a versatile nitrogen-doped hydrochar from olive oil production waste, "alperujo", for removing pharmaceuticals from wastewater. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121751. [PMID: 37150343 DOI: 10.1016/j.envpol.2023.121751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 04/01/2023] [Accepted: 04/28/2023] [Indexed: 05/09/2023]
Abstract
In line with the principles of zero waste and recycling, alperujo (AL) was used in this study to produce a value-added product: hydrochar (HC) with high adsorption capacity. An optimization of the hydrothermal carbonization (HTC) conditions, such as temperature, residence time, and water/solid ratio, was carried out to maximize the adsorption capacity. Eight HCs were obtained, and an in-depth comparative characterization, as well as adsorption tests of two pharmaceuticals with very different physicochemical properties (fluoxetine (FLX) and cefazolin (CFZ)), were performed. This first step allowed for elucidation of the best candidates to carry out nitrogen grafting on their surface, resulting in the HC obtained at a higher water/solid ratio and temperature, and longer residence time: 3-220ºC-2.5 h with a maximum uptake of 4.6 and 0.4 mg/g for FLX and CFZ, respectively. After that, a facile one-step, one-pot synthesis of nitrogen-doped hydrochars (N-HC) was developed to prepare a versatile bio-adsorbent with enhanced adsorption capacity. Two N-HCs were prepared using urea (U-HC) and polyethyleneimine (PEI-HC) and were intensively characterized to shed light on the adsorption mechanism. In both cases, amide groups were formed, which favored the adsorption process. PEI-HC acquired an outstanding maximum adsorption capacity of 983.84 mg/g for CFZ, and 29.31 mg/g for FLX, and the process was well described by the Freundlich isotherm and pseudo-second-order kinetic model. A co-adsorption test was performed using PEI-HC for both pharmaceuticals, finding that the adsorption process occurs in different active sites because there was no interference between the pollutants. This fact corroborates the versatility of the new bio-adsorbent synthesized.
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Affiliation(s)
- S Escudero-Curiel
- CINTECX. Universidade de Vigo, Department of Chemical Engineering. Campus As Lagoas-Marcosende, 36310, Vigo, Spain.
| | - M Pazos
- CINTECX. Universidade de Vigo, Department of Chemical Engineering. Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - A Sanromán
- CINTECX. Universidade de Vigo, Department of Chemical Engineering. Campus As Lagoas-Marcosende, 36310, Vigo, Spain
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Castejón-Del Pino R, Cayuela ML, Sánchez-García M, Sánchez-Monedero MA. Nitrogen availability in biochar-based fertilizers depending on activation treatment and nitrogen source. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 158:76-83. [PMID: 36641823 DOI: 10.1016/j.wasman.2023.01.007] [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: 10/13/2022] [Revised: 12/15/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Different activation and N-doping treatments were used to produce biochar-based fertilizers (BBFs) with increased N concentration and slow N release. Pristine biochars were produced by pyrolysis of olive tree pruning feedstock at low and high temperatures (400 and 800 °C). These biochars were activated either by ultrasonication, or oxidation with hydrogen peroxide (H2O2) or nitric acid (HNO3) to increase their N retention potential. Subsequently biochars were enriched with N with either urea or ammonium sulfate. The activation of low-temperature biochars with HNO3 was the most effective treatment leading to new surface carboxylic groups that facilitated the later enrichment with N. When treated with urea, BBFs reached 7.0 N%, whereas the H2O2 activation only allowed an increase up to 2.0 N%. The use of urea as the external N source was the most efficient for incorporating N. Urea treated biochars had a water-soluble fraction that represented up to 14.5 % of the total N. The hydrolyzable N fraction, composed by amides and simple N heterocycles originated by the N-doping treatments, and nitro groups generated from HNO3 activation, represented up to 60 % of the total N. This study relates the N chemical forms in the new BBFs to potential N availability in soil. The presence of water-soluble, hydrolyzable and non-hydrolyzable N implied that these BBFs may supply N that would be progressively available for plants, acting as slow-release fertilizers.
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Affiliation(s)
- Raúl Castejón-Del Pino
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain.
| | - María L Cayuela
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
| | - María Sánchez-García
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
| | - Miguel A Sánchez-Monedero
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
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Yin Y, Yang S, Jia Z, Zhang H, Gao Y, Zhang X, Zhong H, Zhou Z, Zhang X, Zhou H. Magnetic biochar based on furfural residue as an excellent candidate for efficient adsorption of Tetracycline, Bisphenol A, Congo red, and Cr 6. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:26510-26522. [PMID: 36367652 DOI: 10.1007/s11356-022-23978-7] [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: 07/17/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Magnetic porous adsorbent materials are widely favored for their large specific surface area, good adsorption performance, and ease of separation. This work provided a magnetic biochar derived from furfural residue (M-FRAC) with excellent adsorption properties for various pollutants, including Congo red (CR), Tetracycline (TC), Bisphenol A (BPA), and Cr6+. The influence of experimental parameters, such as pollutant concentration, contact time, and pH, on the adsorption properties of M-FRAC was studied in detail. The adsorption process was highly dependent on pH and initial contaminant concentration. All pollutant adsorption was favorable under acidic conditions. The optimal pH of the CR, TC, and Cr6+ adsorption was 5, 4, and 2, respectively, while that of BPA was in the range of 2-5. The experimental equilibrium adsorption amount of CR, TC, BPA, and Cr6+ by M-FRAC was 110.89, 602.81, 157.76, and 265.31 mg/g, respectively. The adsorption processes of pollutants on M-FRAC were in accordance with the Langmuir isotherm model. The adsorption kinetics fitted the pseudo-second-order (PSO) kinetics model. In addition, M-FRAC could be readily separated from solution by applying an external magnetic field. Therefore, the M-FRAC has a good application prospect in practical industrial wastewater treatment.
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Affiliation(s)
- Yanbo Yin
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Shengqi Yang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Zuoyu Jia
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Hao Zhang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Yuan Gao
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Xucheng Zhang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Haojie Zhong
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Zhongqi Zhou
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Xin Zhang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Haifeng Zhou
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.
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Amino-functionalization of lignocellulosic biopolymer to be used as a green and sustainable adsorbent for anionic contaminant removal. Int J Biol Macromol 2023; 227:1271-1281. [PMID: 36464187 DOI: 10.1016/j.ijbiomac.2022.11.322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/19/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022]
Abstract
In this work, natural biopolymer stemming from lignocellulosic peanut hull biomass was used as a green and low-cost adsorbent to eliminate anionic Congo red (CR) and Cr(VI) ions from aqueous sample. In order to enhance the removal performance, the lignocellulosic biopolymer was subjected to amino-modification by the graft copolymerization of (3-acrylamidopropyl) trimethylammonium chloride and N, N'-methylenebisacrylamide. The property of the prepared amino-functionalized biopolymer (AFB) was examined through FTIR, TG, SEM, particle size analysis, zeta potential determination and XPS. The adsorption efficacy of AFB for CR and Cr(VI) was tested at different pH, contact time and initial concentration. The kinetic, isotherm and thermodynamics investigations revealed that the uptakes of CR and Cr(VI) were the combination processes of chemical and physical interactions, and both endothermic in nature. The AFB exhibited good reusability without significant loss in adsorption capacity after five consecutive cycles. Mechanistic analysis indicated that the quaternary ammonium groups in AFB contributed a lot to the binding of anionic compounds through electrostatic attraction. In addition, n-π and hydrogen bonding while reduction and coordination were also responsible for the removal of CR and Cr(VI), respectively. The present study provides a favorable strategy for the removal of anionic contaminates in water by using green and sustainable lignocellulosic wastes.
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He B, Yang Y, Liu B, Zhao Z, Shang J, Cheng X. Degradation of chlortetracycline hydrochloride by peroxymonosulfate activation on natural manganese sand through response surface methodology. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82584-82599. [PMID: 35752673 DOI: 10.1007/s11356-022-21556-5] [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: 11/09/2021] [Accepted: 06/14/2022] [Indexed: 05/28/2023]
Abstract
This work studies the degradation of chlortetracycline hydrochloride (CTC) by activated peroxymonosulfate (PMS) with natural manganese sand (NMS). Meanwhile, the NMS was characterized and analyzed by isothermal nitrogen adsorption (BET), energy-dispersive X-ray spectroscopy (EDS) and scanning electron microscope (SEM). It can be induced that NMS material may contain C, O, Al, Si, Fe, Mn, and K, and the proportion of each is 6%, 9%, 13%, 34%, 27%, 5%, and 6%. Critical parameters, including initial pH value, catalyst dosage, and PMS amount, were optimized through response surface methodology. One of the essential significances of response surface methodology (RSM) is the establishment and optimization of the mathematical model to reduce the complexity of the experimental process. It can provide the degree of mutual influence between various factors and optimize the response based on the investigated factors. Results indicated that 81.65% of CTC could be degraded under the optimized conditions of PMS amount 2.02 g/L, the NMS dosage 0.29 g/L and pH 3.87. Also, it shows that NMS is the most powerful of each factor on the degradation efficiency. We proposed the degradation pathways of CTC from the liquid chromatograph-mass spectrometer (LC-MS) results. Therefore, NMS could be applied as an efficient activator of peroxymonosulfate to purify the water and wastewater.
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Affiliation(s)
- Bo He
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Ying Yang
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Bingrui Liu
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Zixuan Zhao
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Jiangwei Shang
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
- College of Chemistry & Environmental Sciences, Yili Normal University, Yining, 835000, People's Republic of China
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, YiLi Normal University, Yining, 835000, People's Republic of China
| | - Xiuwen Cheng
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China.
- College of Chemistry & Environmental Sciences, Yili Normal University, Yining, 835000, People's Republic of China.
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, YiLi Normal University, Yining, 835000, People's Republic of China.
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Yu D, Niu J, Zhong L, Chen K, Wang G, Yan M, Li D, Yao Z. Biochar raw material selection and application in the food chain: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 836:155571. [PMID: 35490824 DOI: 10.1016/j.scitotenv.2022.155571] [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: 01/19/2022] [Revised: 04/24/2022] [Accepted: 04/24/2022] [Indexed: 06/14/2023]
Abstract
As one of the largest carbon emitters, China promises to achieve carbon emissions neutrality by 2060. Various industries are developing businesses to reduce carbon emissions. As an important greenhouse gas emissions scenario, the reduction of carbon emissions in the food chain can be achieved by preparing the wastes into biochar. The food chain, as one of the sources of biochar, consists of production, processing and consumption, in which many wastes can be transferred into biochar. However, few studies use the food chain as the system to sort out the raw materials of biochar. A systematic review of the food chain application in serving as raw materials for biochar is helpful for further application of such technique, providing supportive information for the development of biochar preparation and wastes treating. In addition, there are many pollution sources in the food production process, such as agricultural contaminated soil and wastewater from livestock and aquatic, that can be treated on-site to achieve the goal of treating wastes with wastes within the food chain. This study focuses on waste resource utilization and pollution remediation in the food chain, summarizing the sources of biochar in the food chain and analyzing the feasibility of using waste in food chain to treat contaminated sites in the food chain and discussing the impacts of the greenhouse gas emissions. This review provides a reference for the resource utilization of waste and pollution reduction in the food chain.
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Affiliation(s)
- Dayang Yu
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Jinjia Niu
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Longchun Zhong
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Kaiyu Chen
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Guanyi Wang
- State Grid UHV Engineering Construction Company, Beijing 100052, China
| | - Meilin Yan
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Dandan Li
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Zhiliang Yao
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China.
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Cheng XL, Xu Q, Sun JD, Li CR, Yang QW, Li B, Zhang XY, Zhou J, Yong XY. Quorum sensing signals improve the power performance and chlortetracycline degradation efficiency of mixed-culture electroactive biofilms. iScience 2022; 25:104299. [PMID: 35573194 PMCID: PMC9097700 DOI: 10.1016/j.isci.2022.104299] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/16/2022] [Accepted: 04/21/2022] [Indexed: 11/18/2022] Open
Abstract
Electroactive biofilms (EABs) play an important role in bioelectrochemical systems due to their abilities to generate electrons and perform extracellular electron transfer (EET). Here, we investigated the effects of quorum sensing (QS) signals on power output, chlortetracycline degradation, and structure of EABs in MFCs treating antibiotic wastewater. The voltage output of MFCs with C4-HSL and PQS increased by 21.57% and 13.73%, respectively, compared with that without QS signals. The chlortetracycline degradation efficiency in closed-circuit MFCs with C4-HSL and PQS increased by 56.53% and 50.04%, respectively, which resulted from the thicker biofilms, higher biomass, and stronger activities. Additionally, QS signals induced the heterogeneous distribution of EPS for a balance between self-protection and EET under environmental pressure. Geobacter prevailed by the addition of QS signals to resist high chlortetracycline concentration. Our results provided a broader understanding on regulating EABs within electrode interface to improve their performance for environmental remediation and clean energy development. The voltage output of MFCs was enhanced with the addition of QS signals QS signals increased the bioelectrochemical degradation efficiency of CTC EABs exhibited heterogeneity in composition and interaction by the QS signals QS signals induced a balance between self-protection and EET of EABs
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Behzadi A, Hashemi Motlagh G, Raef M, Motahari S. Rational design of in‐situ‐modified resorcinol formaldehyde aerogels for removing chlortetracycline antibiotics from aqueous solutions. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alireza Behzadi
- Advanced Polymer Materials & Processing Lab, School of Chemical Engineering, College of Engineering University of Tehran Tehran Iran
| | - Ghodratollah Hashemi Motlagh
- Advanced Polymer Materials & Processing Lab, School of Chemical Engineering, College of Engineering University of Tehran Tehran Iran
| | - Mohammad Raef
- Department of Mining‐Metallurgy Engineering and Materials Science, POLYMAT, Faculty of Engineering in Bilbao University of the Basque Country (UPV/EHU) Bilbao Spain
| | - Siamak Motahari
- Advanced Polymer Materials & Processing Lab, School of Chemical Engineering, College of Engineering University of Tehran Tehran Iran
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Jiang S, Yan L, Wang R, Li G, Rao P, Ju M, Jian L, Guo X, Che L. Recyclable nitrogen-doped biochar via low-temperature pyrolysis for enhanced lead(II) removal. CHEMOSPHERE 2022; 286:131666. [PMID: 34320439 DOI: 10.1016/j.chemosphere.2021.131666] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 06/13/2023]
Abstract
Facile and low-cost preparation are essential in the conversation of agricultural waste into biochar. In this work, nitrogen-doped biochar (NBC-350-0.1) was prepared by thermal decomposition of urea (urea/biochar = 0.1:1 mass ratio) at a low temperature of 350 °C. NBC-350-0.1 showed good performance for Pb(II) removal with the maximum adsorption capacity of 130.87 mg g-1 at 25 °C, which was five times that of pristine biochar (BC). Adsorption kinetics, isotherms and thermodynamics studies indicated that the adsorption of Pb(II) by NBC-350-0.1 or BC was the homogeneous monolayer adsorption with chemical action as the rate-limiting step, and was accompanied by spontaneous endothermic. Further analysis showed that the removal of Pb(II) on NBC-350-0.1 and BC depended on the complexation with unsaturated carbon bonds and ion exchange with Ca(II). Moreover, graphitic- and pyridinic-N in NBC-350-0.1 exerted a key part in the adsorption of Pb(II). NBC-350-0.1 regenerated by NaOH exhibited excellent recycling performance keeping the original removal efficiency at 84% after five cycles. In addition, this N doping method is suitable for improving the performance of coffee grounds, sawdust, and bagasse biochar. These results would provide an idea for obtaining recyclable N-doped biochar to treat the Pb(II) polluted wastewater.
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Affiliation(s)
- Siyu Jiang
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, PR China
| | - Lili Yan
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, PR China; Innovation Centre for Environment and Resources, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, PR China.
| | - Runkai Wang
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, PR China
| | - Guanghui Li
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, PR China; Innovation Centre for Environment and Resources, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, PR China
| | - Pinhua Rao
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, PR China
| | - Mengcan Ju
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, PR China
| | - Ling Jian
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, PR China
| | - Xin Guo
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, PR China
| | - Lei Che
- Zhejiang Eco Environmental Technology Co., Ltd, Huzhou, 313000, PR China
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Mei Y, Xu J, Zhang Y, Li B, Fan S, Xu H. Effect of Fe-N modification on the properties of biochars and their adsorption behavior on tetracycline removal from aqueous solution. BIORESOURCE TECHNOLOGY 2021; 325:124732. [PMID: 33493749 DOI: 10.1016/j.biortech.2021.124732] [Citation(s) in RCA: 119] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 05/03/2023]
Abstract
Tetracycline (TC) adsorption capacity on pristine biochar was limited. Biochar modification can greatly improve its adsorption amount. In this study, rice straw was mixed with FeCl3·6H2O and urea to prepare a Fe-N modified biochar via a one-pot pyrolysis method at 700 °C. Meanwhile, pristine biochar (RSBC), urea modified biochar (N-RSBC), FeCl3·6H2O-modified biochar (Fe-RSBC) were produced as control. More functional groups, more graphited carbon structure, and magnetic components were observed in Fe-N-RSBC. Compared with RSBC, the surface area, total pore and micropore volume of Fe-N-RSBC increased 3.4-fold, 3.0-fold and 2.3-fold, respectively. The maximum capacity of TC adsorption on Fe-N-RSBC reached 156 mg·g-1, which was 5.4 - fold, 8.2 - fold and 1.9 - fold increase to that of RSBC, N-RSBC, Fe-RSBC, respectively. The mechanism of TC adsorption on Fe-N-RSBC involved pore filling, hydrogen-bondinteraction, surface complexation, and π-π interaction. Therefore, Fe-N-RSBC can be used as an effective adsorbent for TC removal from aqueous solution.
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Affiliation(s)
- Yanglu Mei
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Jin Xu
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Yin Zhang
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Bin Li
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
| | - Shisuo Fan
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Huacheng Xu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
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Li J, He F, Shen X, Hu D, Huang Q. Pyrolyzed fabrication of N/P co-doped biochars from (NH 4) 3PO 4-pretreated coffee shells and appraisement for remedying aqueous Cr(VI) contaminants. BIORESOURCE TECHNOLOGY 2020; 315:123840. [PMID: 32693347 DOI: 10.1016/j.biortech.2020.123840] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
In this study, an agricultural residue-derived biochar was fabricated by pyrolyzing coffee shells using (NH4)3PO4 pretreatment. The influence of pyrolysis temperature on the structure and properties of biochars was investigated. The elemental analysis, spectroscopic and textural studies showed that the biochars were endued sufficient N and P co-doping and large specific surface area by (NH4)3PO4-pretreatment. The appraisement for remedying aqueous Cr(VI) contaminants demonstrated that the N/P co-doped biochars offered high efficiencies above 95% for aqueous Cr(VI) removal. The mechanism investigation displayed that the adsorption and reduction of Cr(VI) were boosted by the synergistic effect between the hierarchical pore structure and the groups related to oxygen, nitrogen and phosphorus. Moreover, the biochar can be readily regenerated by HCl solution soaking for reuses several times. This work should permit for providing a convenient utilization of coffee shell agricultural residues, and the coffee shell-derived biochars supplied potential for remedying Cr(VI) in effluents.
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Affiliation(s)
- Jianqiu Li
- School of Materials and Energy, Yunnan University, Kunming 650091, PR China
| | - Feifei He
- School of Agriculture, Yunnan University, Kunming 650091, PR China
| | - Xiaoyang Shen
- School of Materials and Energy, Yunnan University, Kunming 650091, PR China
| | - Dongwen Hu
- School of Materials and Energy, Yunnan University, Kunming 650091, PR China
| | - Qiang Huang
- School of Materials and Energy, Yunnan University, Kunming 650091, PR China.
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