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Pang Y, Lin P, Chen Z, Zhou M, Yang D, Lou H, Qiu X. Preparation, characterization, and adsorption performance of porous polyamine lignin microsphere. Int J Biol Macromol 2023; 253:127026. [PMID: 37751818 DOI: 10.1016/j.ijbiomac.2023.127026] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/28/2023] [Accepted: 09/20/2023] [Indexed: 09/28/2023]
Abstract
In this study, a porous polyamine lignin microsphere (PPALM) was prepared through the inverse suspension polymerization combined with freeze-drying, during which sodium lignosulfonate and polyetheramine (PEA) were crosslinked with epichlorohydrin (ECH) as the cross-linker. By adjusting the amount of ECH and PEA, the optimized PPALM exhibited suitable crosslinking degree, ensuring a balance of framework flexibility and rigidity, thereby facilitating the formation of abundant and fine pores. PPALM demonstrated good mechanical properties comparable to commercial sulfonated polystyrene cationic resin, with a porosity of 61.12 % and an average pore size of 283.51 nm. The saturation adsorption capacity of PPALM for Pb2+ was measured to be 156.82 mg/g, and it remained above 120 mg/g after five cycles of regeneration. Particularly, the concentration of 50 mg/L Pb2+ solution could be reduced to 0.98 mg/L after flowing through the PPALM packed bed, indicating the great potential of PPALM for application in wastewater treatment.
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Affiliation(s)
- Yuxia Pang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Peiyi Lin
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Zhengsong Chen
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Mingsong Zhou
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Dongjie Yang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Hongming Lou
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China.
| | - Xueqing Qiu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China.
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2
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Ali S, Huang S, Zhou J, Bai Y, Liu Y, Shi L, Liu S, Hu Z, Tang Y. miR397-LACs mediated cadmium stress tolerance in Arabidopsis thaliana. PLANT MOLECULAR BIOLOGY 2023; 113:415-430. [PMID: 37566350 DOI: 10.1007/s11103-023-01369-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 07/04/2023] [Indexed: 08/12/2023]
Abstract
Cadmium (Cd) is a non-essential heavy metal, assimilated in plant tissue with other nutrients, disturbing the ions' homeostasis in plants. The plant develops different mechanisms to tolerate the hazardous environmental effects of Cd. Recently studies found different miRNAs that are involved in Cd stress. In the current study, miR397 mutant lines were constructed to explore the molecular mechanisms of miR397 underlying Cd tolerance. Compared with the genetically modified line of overexpressed miR397 (artificial miR397, amiR397), the lines of downregulated miR397 (Short Tandem Target Mimic miR397, STTM miR397) showed more substantial Cd tolerance with higher chlorophyll a & b, carotenoid and lignin content. ICP-OES revealed higher cell wall Cd and low total Cd levels in STTM miR397 than in the wild-type and amiR397 plants.Further, the STTM plants produced fewer reactive oxygen species (ROS) and lower activity of antioxidants enzymes (e.g., catalase [CAT], malondialdehyde [MDA]) compared with amiR397 and wild-type plants after stress, indicating that silencing the expression of miR397 can reduce oxidative damage. In addition, the different family transporters' gene expression was much higher in the amiR397 plants than in the wild type and STTM miRNA397. Our results suggest that miR397 plays a role in Cd tolerance in Arabidopsis thaliana. Overexpression of miR397 could decrease Cd tolerance in plants by regulating the expression of LAC 2/4/17, changing the lignin content, which may play an important role in inducing different stress-tolerant mechanisms and protecting the cell from a hazardous condition. This study provides a basis to elucidate the functions of miR397 and the Cd stress tolerance mechanism in Arabidopsis thaliana.
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Affiliation(s)
- Shahid Ali
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Shili Huang
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Jiajie Zhou
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Yongsheng Bai
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Yang Liu
- Guangdong Academy of Forestry, Guangzhou, 510520, Guangdong Province, China
| | - Liyu Shi
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Shuai Liu
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, 710003, Shaanxi, China
| | - Zhangli Hu
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Yulin Tang
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China.
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3
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Wang Q, Sun Y, Hao M, Yu F, He J. Hydrothermal Synthesis of a Technical Lignin-Based Nanotube for the Efficient and Selective Removal of Cr(VI) from Aqueous Solution. Molecules 2023; 28:5789. [PMID: 37570758 PMCID: PMC10421463 DOI: 10.3390/molecules28155789] [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: 07/06/2023] [Revised: 07/27/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Aminated lignin (AL) was obtained by modifying technical lignin (TL) with the Mannich reaction, and aminated lignin-based titanate nanotubes (AL-TiNTs) were successfully prepared based on the AL by a facile hydrothermal synthesis method. The characterization of AL-TiNTs showed that a Ti-O bond was introduced into the AL, and the layered and nanotubular structure was formed in the fabrication of the nanotubes. Results showed that the specific surface area increased significantly from 5.9 m2/g (TL) to 188.51 m2/g (AL-TiNTs), indicating the successful modification of TL. The AL-TiNTs quickly adsorbed 86.22% of Cr(VI) in 10 min, with 99.80% removal efficiency after equilibration. Under visible light, AL-TiNTs adsorbed and reduced Cr(VI) in one step, the Cr(III) production rate was 29.76%, and the amount of total chromium (Cr) removal by AL-TiNTs was 90.0 mg/g. AL-TiNTs showed excellent adsorption capacities of Zn2+ (63.78 mg/g), Cd2+ (59.20 mg/g), and Cu2+ (66.35 mg/g). After four cycles, the adsorption capacity of AL-TiNTs still exceeded 40 mg/g. AL-TiNTs showed a high Cr(VI) removal efficiency of 95.86% in simulated wastewater, suggesting a promising practical application in heavy metal removal from wastewater.
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Affiliation(s)
- Qiongyao Wang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Water and Environment, Chang’an University, Xi’an 710054, China; (Q.W.); (M.H.); (F.Y.)
| | - Yongchang Sun
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Water and Environment, Chang’an University, Xi’an 710054, China; (Q.W.); (M.H.); (F.Y.)
| | - Mingge Hao
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Water and Environment, Chang’an University, Xi’an 710054, China; (Q.W.); (M.H.); (F.Y.)
| | - Fangxin Yu
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Water and Environment, Chang’an University, Xi’an 710054, China; (Q.W.); (M.H.); (F.Y.)
| | - Juanni He
- Huijin Technology Holding Group Corporation Limited, Xi’an 710000, China
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Wang H, Liang J, Huo P, Zhang L, Fan X, Sun S. Understanding the cadmium passivation and nitrogen mineralization of aminated lignin in soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 873:162334. [PMID: 36813204 DOI: 10.1016/j.scitotenv.2023.162334] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Aminated lignin (AL) was prepared and first applied to remediation of cadmium (Cd) pollution in soil. Meanwhile, the nitrogen mineralization characteristics of AL in soil and its effect on soil physicochemical properties were elucidated by soil incubation experiment. The results showed that the Cd availability was dramatically lowered in soil by adding the AL. The DTPA-extractable Cd content of AL treatments was considerably reduced by 40.7-71.4 %. The soil pH (5.77-7.01) and absolute value of zeta potential (30.7-34.7 mV) enhanced simultaneously as the AL additions increased. The content of soil organic matter (SOM) (99.0-264.0 %) and total nitrogen (95.9-301.3 %) were gradually enhanced due to high C (63.31 %) and N (9.69 %) content in AL. Moreover, AL significantly elevated the content of mineral nitrogen (77.2-142.4 %) and available nitrogen (95.5-301.7 %). The first-order kinetic equation of soil nitrogen mineralization revealed that AL greatly enhanced nitrogen mineralization potential (84.7-143.9 %) and reduced environmental pollution by lowering the loss of soil inorganic nitrogen. AL could effectively reduce the availability of Cd through direct (self-adsorption) and indirect effects (improvement of soil pH, SOM and reduction of soil zeta potential), thereby achieving passivation of Cd in soil. In short, this work will develop a novel approach and technical support for soil heavy metal remediation, which is of great significance for improving the sustainable development of agricultural production.
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Affiliation(s)
- Haoran Wang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jiamin Liang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Pengju Huo
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Lidan Zhang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Xiaolin Fan
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Shaolong Sun
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China.
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5
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Komisarz K, Majka TM, Pielichowski K. Chemical and Physical Modification of Lignin for Green Polymeric Composite Materials. MATERIALS (BASEL, SWITZERLAND) 2022; 16:16. [PMID: 36614353 PMCID: PMC9821536 DOI: 10.3390/ma16010016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/25/2022] [Accepted: 12/14/2022] [Indexed: 06/15/2023]
Abstract
Lignin, a valuable polymer of natural origin, displays numerous desired intrinsic properties; however, modification processes leading to the value-added products suitable for composite materials' applications are in demand. Chemical modification routes involve mostly reactions with hydroxyl groups present in the structure of lignin, but other paths, such as copolymerization or grafting, are also utilized. On the other hand, physical techniques, such as irradiation, freeze-drying, and sorption, to enhance the surface properties of lignin and the resulting composite materials, are developed. Various kinds of chemically or physically modified lignin are discussed in this review and their effects on the properties of polymeric (bio)materials are presented. Lignin-induced enhancements in green polymer composites, such as better dimensional stability, improved hydrophobicity, and improved mechanical properties, along with biocompatibility and non-cytotoxicity, have been presented. This review addresses the challenges connected with the efficient modification of lignin, which depends on polymer origin and the modification conditions. Finally, future outlooks on modified lignins as useful materials on their own and as prospective biofillers for environmentally friendly polymeric materials are presented.
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6
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Renewable plant-derived lignin for electrochemical energy systems. Trends Biotechnol 2022; 40:1425-1438. [PMID: 35989111 DOI: 10.1016/j.tibtech.2022.07.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 01/21/2023]
Abstract
Lignin, as one of the most abundant natural polymers, has been proved to be a promising material for the construction of high-performance electrochemical energy systems, including electrodes, electrolytes, and separators, because of their low-cost and sustainable natures and unique structure with abundant functional group. In this review article, we outline some key contributions in this field such as fundamental principles and various electrochemical energy systems including rechargeable batteries, supercapacitors, solar cells, and fuel cells. At the same time, we also point out the significant scientific discussion and critical barriers for lignin-based materials for electrochemical energy systems and also provides feasible strategies for preparing new sustainable energy materials.
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7
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Wang T, Jiang M, Yu X, Niu N, Chen L. Application of lignin adsorbent in wastewater Treatment: A review. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Highly efficient adsorption of Hg2+ from aqueous solutions by amino-functionalization alkali lignin. Int J Biol Macromol 2022; 222:3034-3044. [DOI: 10.1016/j.ijbiomac.2022.10.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/30/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
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9
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Mannich-mediated synthesis of a recyclable magnetic kraft lignin-coated copper nanostructure as an efficient catalyst for treatment of environmental contaminants in aqueous media. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120373] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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10
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Ono F, Okihara T, Osaka N, Nagaoka N, Kameoka Y, Ishikawa A, Ooki H, Ito T, Todome D, Uemoto S, Furutani M, Inokuchi T, Okada K. Flame retardance-donated lignocellulose nanofibers (LCNFs) by the Mannich reaction with (amino-1,3,5-triazinyl)phosphoramidates and their properties. RSC Adv 2022; 12:3300-3308. [PMID: 35425348 PMCID: PMC8979297 DOI: 10.1039/d1ra08716a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 12/29/2021] [Indexed: 11/21/2022] Open
Abstract
Nitrogen/phosphorus-containing melamines (NPCM), a durable flame-retardant, were prepared by the successive treatment of ArOH (Ar = BrnC6H5−n, n = 0, 1, 2, and 3) with POCl3 and melamine monomer. The prepared flame-retardants were grafted through the CH2 unit to lignocellulose nanofibers (LCNFs) by the Mannich reaction. The resulting three-component products were characterized using FT-IR (ATR) and EA. The thermal behavior of the NPCM-treated LCNF fabric samples was determined using TGA and DSC analyses, and their flammability resistances were evaluated by measuring their Limited Oxygen Index (LOI) and the UL-94V test. A multitude of flame retardant elements in the fabric samples increased the LOI values as much as 45 from 20 of the untreated LCNFs. Moreover, the morphology of both the NPCM-treated LCNFs and their burnt fabrics was studied with a scanning electron microscope (SEM). The heat release lowering effect of the LCNF fabric against the water-based paint was observed with a cone calorimeter. Furthermore, the mechanical properties represented as the tensile strength of the NPCM-treated LCNF fabrics revealed that the increase of the NPCM content in the PP-composites led to an increased bending strength with enhancing the flame-retardance. LCNFs were grafted with nitrogen/phosphorus-containing melamines to achieve potent flame-retardance and converted to PP-composites of improved mechanical properties.![]()
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Affiliation(s)
- Fumiaki Ono
- Okayama Biomass Innovation Creative Center, 5301, Haga, Kita-ku, Okayama 701-1221, Japan
| | - Takumi Okihara
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1, Tsushima-naka, Kita-Ku, Okayama 700-8530, Japan
| | - Noboru Osaka
- Faculty of Science, Okayama University of Science, 1-1, Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Noriyuki Nagaoka
- Advanced Research Center for Oral and Craniofacial Science, Okayama University Dental School, 2-5-1, Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yuji Kameoka
- Marubishi Oil Chemical Co., Ltd, 1-4-16, Dojimahama, Kita-ku, Osaka 530-0004, Japan
| | - Akira Ishikawa
- Marubishi Oil Chemical Co., Ltd, 1-4-16, Dojimahama, Kita-ku, Osaka 530-0004, Japan
| | - Hironari Ooki
- Gen Gen Corporation, 74, Nakano Ori, Kamori, Tsushima, Aichi 496-0005, Japan
| | - Takumi Ito
- Gen Gen Corporation, 74, Nakano Ori, Kamori, Tsushima, Aichi 496-0005, Japan
| | - Daisuke Todome
- Faculty of Science, Okayama University of Science, 1-1, Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Shinya Uemoto
- Okayama Biomass Innovation Creative Center, 5301, Haga, Kita-ku, Okayama 701-1221, Japan
| | - Mitsuaki Furutani
- Okayama Biomass Innovation Creative Center, 5301, Haga, Kita-ku, Okayama 701-1221, Japan
| | - Tsutomu Inokuchi
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1, Tsushima-naka, Kita-Ku, Okayama 700-8530, Japan
- Okayama Biomass Innovation Creative Center, 5301, Haga, Kita-ku, Okayama 701-1221, Japan
| | - Kenji Okada
- Department of Life Science, Kurashiki University of Science & the Arts, 2640, Nishinoura, Tsurajima, Kurashiki 712-8505, Japan
- Okayama Biomass Innovation Creative Center, 5301, Haga, Kita-ku, Okayama 701-1221, Japan
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11
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Gihar S, Kumar D, Kumar P. Facile synthesis of novel pH-sensitive grafted guar gum for effective removal of mercury (II) ions from aqueous solution. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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12
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Jiang Z, Ho SH, Wang X, Li Y, Wang C. Application of biodegradable cellulose-based biomass materials in wastewater treatment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:118087. [PMID: 34488155 DOI: 10.1016/j.envpol.2021.118087] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/28/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Water bodies contain a large number of harmful environmental pollutants, including oil, heavy metal ions and dyes, which has become a major global problem. The current work focusses on the development and future prospect of sustainable application of biodegradable cellulose-biomass materials in water treatment, considering that they show an important prospect in wastewater treatment. This paper summarizes the advantages and disadvantages of cellulose-biomass materials in removing harmful substances and pollutants from water and the key problems the technology faces. Cellulose-biomass material has unique structure, is environment friendly, degradable, renewable and provides low energy cost benefits, among other advantages. In this paper, the research progress of wastewater treatment in recent years is reviewed from the following three aspects: oil-water separation, heavy metal ions in water, and dye adsorption. The future research direction is also discussed.
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Affiliation(s)
- Zishuai Jiang
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Shih-Hsin Ho
- State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin, 150040, PR China
| | - Xin Wang
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Yudong Li
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Chengyu Wang
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China.
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13
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Shi X, Hong J, Li J, Kong S, Song G, Naik N, Guo Z. Excellent selectivity and high capacity of As (V) removal by a novel lignin-based adsorbent doped with N element and modified with Ca 2. Int J Biol Macromol 2021; 172:299-308. [PMID: 33418048 DOI: 10.1016/j.ijbiomac.2021.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/28/2020] [Accepted: 01/02/2021] [Indexed: 10/22/2022]
Abstract
As one of the most significant natural polymer with the highest annual yield, lignin has been applied in the treatment of wastewater to remove heavy metal ions. However, there are still some shortages, such as low reactivity, difficulties in adsorbing oxyanions and low selectivity on specific oxyanions. To improve its adsorption properties, a novel lignin-based adsorbent was prepared in this study, doped with nitrogen by Mannich reaction, using triethylenetetramine (TETA) as N source, and further modified with Ca2+. The adsorption of Ca, N-co-doped lignin (Ca@N-Lig) for As (V), Cr (VI) and P (V) was studied. The Ca@N-Lig shows high capacity, excellent selectivity and prominent regeneration ability for As (V) adsorption. The adsorption of Ca@N-Lig for As (V) followed the Langmuir isotherm model and the pseudo-second-order kinetics model, yielding a maximum adsorption capacity of 681.59 mg·g-1 and a fast adsorption equilibrium within 30 min. Ca@N-Lig has an excellent regeneration ability on the adsorption of As (V) with a decrease of about 15.60% after 5 adsorption/desorption cycles. This study offers an efficient way to remove As (V) from polluted water.
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Affiliation(s)
- Xiaofeng Shi
- School of Environment and Safety Engineering, North University of China, Taiyuan, China.
| | - Junmao Hong
- School of Materials Science and Engineering, North University of China, Taiyuan, China
| | - Junhua Li
- School of Environment and Safety Engineering, North University of China, Taiyuan, China.
| | - Shifang Kong
- School of Traffic & Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, China.
| | - Gang Song
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Nithesh Naik
- Department of Mechanical & Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical and Bimolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA.
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14
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Ion SG, Brudiu T, Hanganu A, Munteanu F, Enache M, Maria GM, Tudorache M, Parvulescu V. Biocatalytic Strategy for Grafting Natural Lignin with Aniline. Molecules 2020; 25:molecules25214921. [PMID: 33114355 PMCID: PMC7662662 DOI: 10.3390/molecules25214921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/01/2022] Open
Abstract
This paper presents an enzyme biocatalytic method for grafting lignin (grafting bioprocess) with aniline, leading to an amino-derivatized polymeric product with modified properties (e.g., conductivity, acidity/basicity, thermostability and amino-functionalization). Peroxidase enzyme was used as a biocatalyst and H2O2 was used as an oxidation reagent, while the oxidative insertion of aniline into the lignin structure followed a radical mechanism specific for the peroxidase enzyme. The grafting bioprocess was tested in different configurations by varying the source of peroxidase, enzyme concentration and type of lignin. Its performance was evaluated in terms of aniline conversion calculated based on UV-vis analysis. The insertion of amine groups was checked by 1H-NMR technique, where NH protons were detected in the range of 5.01–4.99 ppm. The FTIR spectra, collected before and after the grafting bioprocess, gave evidence for the lignin modification. Finally, the abundance of grafted amine groups was correlated with the decrease of the free –OH groups (from 0.030 to 0.009 –OH groups/L for initial and grafted lignin, respectively). Additionally, the grafted lignin was characterized using conductivity measurements, gel permeation chromatography (GPC), thermogravimetric analysis (TGA), temperature-programmed desorption (TPD-NH3/CO2) and scanning electron microscopy (SEM) analyses. The investigated properties of the developed lignopolymer demonstrated its disposability for specific industrial applications of derivatized lignin.
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Affiliation(s)
- Sabina Gabriela Ion
- Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, Soseaua Panduri 90, sector 5, 050663 Bucharest, Romania; (S.G.I.); (T.B.); (V.P.)
| | - Teodor Brudiu
- Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, Soseaua Panduri 90, sector 5, 050663 Bucharest, Romania; (S.G.I.); (T.B.); (V.P.)
| | - Anamaria Hanganu
- Institute of Organic Chemistry C. D. Nenitescu of Romanian Academy, 202B Spl. Independentei, 060023 Bucharest, Romania;
| | - Florentina Munteanu
- Department of Technical and Natural Sciences, Aurel Vlaicu University of Arad, Bd. Revolutiei 77, 310130 Arad, Romania;
| | - Madalin Enache
- Institute of Biology Bucharest of the Romanian Academy, Splaiul Independentei 296, 060031 Bucharest, Romania; (M.E.); (G.-M.M.)
| | - Gabriel-Mihai Maria
- Institute of Biology Bucharest of the Romanian Academy, Splaiul Independentei 296, 060031 Bucharest, Romania; (M.E.); (G.-M.M.)
| | - Madalina Tudorache
- Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, Soseaua Panduri 90, sector 5, 050663 Bucharest, Romania; (S.G.I.); (T.B.); (V.P.)
- Correspondence:
| | - Vasile Parvulescu
- Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, Soseaua Panduri 90, sector 5, 050663 Bucharest, Romania; (S.G.I.); (T.B.); (V.P.)
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15
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Gómez-Ceballos V, García-Córdoba A, Zapata-Benabithe Z, Velásquez J, Quintana G. Preparation of hyperbranched polymers from oxidized lignin modified with triazine for removal of heavy metals. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109271] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Wang Q, Zheng C, Zhang J, He F, Yao Y, Zhang TC, He C. Insights into the adsorption of Pb(II) over trimercapto-s-triazine trisodium salt-modified lignin in a wide pH range. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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17
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Fabrication of dually N/S-doped carbon from biomass lignin: Porous architecture and high-rate performance as supercapacitor. Int J Biol Macromol 2020; 156:988-996. [DOI: 10.1016/j.ijbiomac.2020.04.102] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
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18
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Wang D, Lee SH, Kim J, Park CB. "Waste to Wealth": Lignin as a Renewable Building Block for Energy Harvesting/Storage and Environmental Remediation. CHEMSUSCHEM 2020; 13:2807-2827. [PMID: 32180357 DOI: 10.1002/cssc.202000394] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Indexed: 05/13/2023]
Abstract
Lignin is the second most earth-abundant biopolymer having aromatic unit structures, but it has received less attention than other natural biomaterials. Recent advances in the development of lignin-based materials, such as mesoporous carbon, flexible thin films, and fiber matrix, have found their way into applications to photovoltaic devices, energy-storage systems, mechanical energy harvesters, and catalytic components. In this Review, we summarize and suggest another dimension of lignin valorization as a building block for the synthesis of functional materials in the fields of energy and environmental applications. We cover lignin-based materials in the photovoltaic and artificial photosynthesis for solar energy conversion applications. The most recent technological evolution in lignin-based triboelectric nanogenerators is summarized from its fundamental properties to practical implementations. Lignin-derived catalysts for solar-to-heat conversion and oxygen reduction are discussed. For energy-storage applications, we describe the utilization of lignin-based materials in lithium-ion rechargeable batteries and supercapacitors (e.g., electrodes, binders, and separators). We also summarize the use of lignin-based materials as heavy-metal adsorbents for environmental remediation. This Review paves the way to future potentials and opportunities of lignin as a renewable material for energy and environmental applications.
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Affiliation(s)
- Ding Wang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305-701, Korea
| | - Sahng Ha Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305-701, Korea
| | - Jinhyun Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305-701, Korea
| | - Chan Beum Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305-701, Korea
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19
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Jin W, Hu M. Cobalt oxide, sulfide and phosphide-decorated carbon felt for the capacitive deionization of lead ions. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116343] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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20
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Meng X, Scheidemantle B, Li M, Wang YY, Zhao X, Toro-González M, Singh P, Pu Y, Wyman CE, Ozcan S, Cai CM, Ragauskas AJ. Synthesis, Characterization, and Utilization of a Lignin-Based Adsorbent for Effective Removal of Azo Dye from Aqueous Solution. ACS OMEGA 2020; 5:2865-2877. [PMID: 32095708 PMCID: PMC7033985 DOI: 10.1021/acsomega.9b03717] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 01/23/2020] [Indexed: 05/06/2023]
Abstract
How to effectively remove toxic dyes from the industrial wastewater using a green low-cost lignocellulose-based adsorbent, such as lignin, has become a topic of great interest but remains quite challenging. In this study, cosolvent-enhanced lignocellulosic fractionation (CELF) pretreatment and Mannich reaction were combined to generate an aminated CELF lignin which is subsequently applied for removal of methylene blue and direct blue (DB) 1 dye from aqueous solution. 31P NMR was used to track the degree of amination, and an orthogonal design was applied to determine the relationship between the extent of amination and reaction parameters. The physicochemical, morphological, and thermal properties of the aminated CELF lignin were characterized to confirm the successful grafting of diethylenetriamine onto the lignin. The aminated CELF lignin proved to be an effective azo dye-adsorbent, demonstrating considerably enhanced dye decolorization, especially toward DB 1 dye (>90%). It had a maximum adsorption capacity of DB 1 dye of 502.7 mg/g, and the kinetic study suggested the adsorption process conformed to a pseudo-second-order kinetic model. The isotherm results also showed that the modified lignin-based adsorbent exhibited monolayer adsorption. The adsorbent properties were mainly attributed to the incorporated amine functionalities as well as the increased specific surface area of the aminated CELF lignin.
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Affiliation(s)
- Xianzhi Meng
- Department
of Chemical & Biomolecular Engineering, University of Tennessee Knoxville, Knoxville, Tennessee 37996, United States
- E-mail: (X.M.)
| | - Brent Scheidemantle
- Center
of Environmental and Research Technology (CE-CERT), University of California, Riverside, California 92507, United States
- Department
of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, California 92521, United States
| | - Mi Li
- Department
of Chemical & Biomolecular Engineering, University of Tennessee Knoxville, Knoxville, Tennessee 37996, United States
| | - Yun-yan Wang
- Department
of Forestry, Wildlife, and Fisheries; Center for Renewable Carbon, The University of Tennessee Knoxville, Institute of
Agriculture, Knoxville, Tennessee 37996, United States
| | - Xianhui Zhao
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Miguel Toro-González
- Isotope
and Fuel Cycle Technology Division, Oak
Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Priyanka Singh
- Center
of Environmental and Research Technology (CE-CERT), University of California, Riverside, California 92507, United States
- Department
of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, California 92521, United States
| | - Yunqiao Pu
- Biosciences
Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Charles E. Wyman
- Center
of Environmental and Research Technology (CE-CERT), University of California, Riverside, California 92507, United States
- Department
of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, California 92521, United States
| | - Soydan Ozcan
- Department
of Mechanical, Aerospace, Biomedical Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Manufacturing
Demonstration Facility, Energy and Transportation Science Division, Oak Ridge National Laboratory, Knoxville, Tennessee 37932, United States
| | - Charles M. Cai
- Center
of Environmental and Research Technology (CE-CERT), University of California, Riverside, California 92507, United States
- Department
of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, California 92521, United States
| | - Arthur J. Ragauskas
- Department
of Chemical & Biomolecular Engineering, University of Tennessee Knoxville, Knoxville, Tennessee 37996, United States
- Biosciences
Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department
of Forestry, Wildlife, and Fisheries; Center for Renewable Carbon, The University of Tennessee Knoxville, Institute of
Agriculture, Knoxville, Tennessee 37996, United States
- E-mail: (A.J.R.)
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21
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Gao S, Wei G, Liu Q, Liu Q, Gao T, Yao J. Efficient removal of Congo red from pH‐unregulated aqueous solutions by lignosulfonate‐based polycatecholamine. J Appl Polym Sci 2019. [DOI: 10.1002/app.48640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Song Gao
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
| | - Gang Wei
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
- Shandong Dongyue Silicone Materials Co Ltd. Zibo 256401 People's Republic of China
| | - Qiang Liu
- Department of ChemistryTianjin University, and the National Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 People's Republic of China
| | - Qinze Liu
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
| | - Tingting Gao
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Pharmaceutical EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
| | - Jinshui Yao
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
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22
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Li M, Jiang X, Wang D, Xu Z, Yang M. In situ reduction of silver nanoparticles in the lignin based hydrogel for enhanced antibacterial application. Colloids Surf B Biointerfaces 2019; 177:370-376. [PMID: 30785034 DOI: 10.1016/j.colsurfb.2019.02.029] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 02/06/2019] [Accepted: 02/15/2019] [Indexed: 12/25/2022]
Abstract
Although antibiotics have been widely used, the problem of bacterial infection in the medical field still faces many challenges. In this study, we designed a new lignin based antimicrobial hydrogel for antimicrobial application. First, we grafted the amino group onto sodium lignin sulfonate through Mannich reaction to obtain lignin amine (LA), which can cross-link with poly(vinyl alcohol) (PVA) to form hydrogel. Then, silver nitrate solution is added to the formed gel pre-solution to be in situ reduced to silver nanoparticles. The enhanced effect of antibacterial properties due to lignin and silver nanoparticles endows the hydrogel enhanced antibacterial properties. The modification of sodium lignosulfonate and the crosslinking reaction between LA and PVA are confirmed by FTIR, while the content of nitrogen in LA is characterized by XPS. The SEM image of the hydrogel after lyophilization illustrates its internal porous network structure. The rheological test of hydrogel demonstrates its good strength and elasticity. The hydrogel exhibits good antibacterial properties in in vitro antibacterial experiments towards both S. aureus and E. coli, while toxicity tests using L929 cells demonstrated good biocompatibility of the hydrogel.
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Affiliation(s)
- Man Li
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Xingxing Jiang
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Dan Wang
- Department of Engineering Management, Hunan College of Finance and Economics, Changsha, 410083, China
| | - Zeyu Xu
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Minghui Yang
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.
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23
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Synthesis of Femur extracted hydroxyapatite reinforced nanocomposite and its application for Pb(II) ions abatement from aqueous phase. Int J Biol Macromol 2019; 122:667-676. [DOI: 10.1016/j.ijbiomac.2018.10.223] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 11/19/2022]
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24
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Supanchaiyamat N, Jetsrisuparb K, Knijnenburg JTN, Tsang DCW, Hunt AJ. Lignin materials for adsorption: Current trend, perspectives and opportunities. BIORESOURCE TECHNOLOGY 2019; 272:570-581. [PMID: 30352730 DOI: 10.1016/j.biortech.2018.09.139] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/26/2018] [Accepted: 09/27/2018] [Indexed: 05/20/2023]
Abstract
Lignin is a highly aromatic low value biomass residue, which can be utilized for chemicals, fuels and materials production. In recent years significant attention has focused on adsorbent materials from lignin. However, only 5% of available lignin is exploited worldwide, thus significant opportunities still exist for materials development. This review summarizes recent research advances in lignin-based adsorbents, with a particular emphasis on lignin, its modification and carbon materials derived from this abundant feedstock. Lignin derived activated carbons have been utilized for air pollutant adsorption (e.g. CO2, SO2 and H2S), while modified lignin materials have been developed for the removal of organic dyes and organics (like methylene blue, Procion Blue MX-R and phenols), heavy metals (such as Cu, Zn, Pb and Cd), or recovery of noble metals (e.g., Pd, Au and Pt). Future perspectives highlight how green chemistry approaches for developing lignin adsorbents can generate added value processes.
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Affiliation(s)
- Nontipa Supanchaiyamat
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Kaewta Jetsrisuparb
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand
| | | | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Andrew J Hunt
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
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25
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Zhu D, Qin C, Ao S, Wang M, Wu M, lü Y, Pei K, Ni H, Ye P. Hypercrosslinked functionalized lignosulfonates prepared via Friedel–Crafts alkylation reaction for enhancing Pb(Ⅱ) removal from aqueous. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1554686] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dailian Zhu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, P.R. China
| | - Cunqi Qin
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, P.R. China
| | - Shanshi Ao
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, P.R. China
| | - Mei Wang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, P.R. China
| | - Minghua Wu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, P. R. China
| | - Yaohong lü
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, P.R. China
| | - Kemei Pei
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, P.R. China
| | - Huagang Ni
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, P.R. China
| | - Peng Ye
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, P.R. China
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26
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Efficient Removal of Lead from Washing Effluent of Lead-contaminated Soil with Garlic Peel. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-8019-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Chen H, Qu X, Liu N, Wang S, Chen X, Liu S. Study of the adsorption process of heavy metals cations on Kraft lignin. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.09.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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One-Step Fabrication of Dual Responsive Lignin Coated Fe₃O₄ Nanoparticles for Efficient Removal of Cationic and Anionic Dyes. NANOMATERIALS 2018. [PMID: 29538283 PMCID: PMC5869653 DOI: 10.3390/nano8030162] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A new, simple one-step approach has been developed to synthesize lignin and lignin amine coated Fe₃O₄ nanoparticles. These nanoparticles (lignin magnetic nanoparticles (LMNPs) and lignin amine magnetic nanoparticles (LAMNPs)) are found to possess not only magnetic response but also pH-dependent adsorption behavior. Results show that the combination of lignin with nanoparticles increased the adsorption capacities 2-5 times higher than other traditional single lignin based adsorbents (211.42 mg/g for methylene blue (MB) by LMNPs and 176.49 mg/g for acid scarlet GR (AS-GR) by LAMNPs). Meanwhile, by simply adjusting the pH, the dye-loaded adsorbents can be regenerated to recycle both adsorbents and dyes with a desorption efficiency up to 90%. Mechanistic study shows that dye structure and surface charges of adsorbents play the most important part in adsorption where dyes interact with the adsorbent surface via π-π stacking and electrostatic attraction interactions. The efficient fabrication method, eco-friendly reactant, quick magnetic separation, high adsorption and desorption efficiency suggest this novel type of nano-adsorbents to be promising materials for efficient dye pollutant removal and recovery.
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29
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Li T, Lü S, Ji Y, Qi T, Liu M. A biodegradable Fe-fertilizer with high mechanical property and sustainable release for potential agriculture and horticulture applications. NEW J CHEM 2018. [DOI: 10.1039/c8nj04381g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A low-cost and biodegradable Fe-fertilizer bead with sustained release behaviors and excellent mechanical strength for potential agriculture applications.
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Affiliation(s)
- Tao Li
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Shaoyu Lü
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Yanzheng Ji
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Taomei Qi
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Mingzhu Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University
- Lanzhou 730000
- People's Republic of China
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30
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Guo T, Bulin C, Li B, Zhao Z, Yu H, Sun H, Ge X, Xing R, Zhang B. Efficient removal of aqueous Pb(II) using partially reduced graphene oxide-Fe3O4. ADSORPT SCI TECHNOL 2017. [DOI: 10.1177/0263617417744402] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Partially reduced graphene oxide-Fe3O4 composite was prepared through in situ co-precipitation and used as an efficient adsorbent for removing Pb(II) from water. The composites were characterized by X-ray diffraction, high-resolution transmission electron microscopy, X-ray photoelectron spectra, Fourier transformation infrared, Raman spectrometer, N2 adsorption–desorption, vibrating sample magnetometer, and zeta potential analyses. The impacts of pH, contact time, adsorbent dosage, temperature, and foreign substances on Pb(II) adsorption performance were investigated. The adsorption mechanism, kinetics, and thermodynamics were analyzed. The results indicate that Fe3O4 is homogeneously anchored inside the thin graphene sheets, with a particle size of 15–20 nm, resulting in a very low remanence and coercivity. The composite shows excellent and efficient adsorption performance toward aqueous Pb(II): adsorption equilibrium was reached in 10 min with the adsorption percent and quantity of 95.77% and 373.14 mgċg−1, respectively, under a condition of pH = 6, adsorbent dosage 250 mgċL−1, and Pb(II) initial concentration 97.68 mgċL−1, with the subsequent magnetic separation taking only 10 s. The adsorption performance is dependent on adsorbent dosage. A lower dosage favors a higher adsorption quantity, implying a strong adsorptive potential for partially reduced graphene oxide-Fe3O4. The adsorption quantity reached 777.28 mgċg−1, given the dosage 100 mgċL−1. The adsorption is monolayer chemisorption, the whole process of which is controlled by chemisorption and liquid film diffusion. In terms of thermodynamics, the adsorption is an exothermic and spontaneous process.
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Affiliation(s)
- Ting Guo
- College of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, People's Republic of China
| | - Chaoke Bulin
- College of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, People's Republic of China
| | - Bo Li
- Institute of Functional materials, Central Iron and Steel Research Institute, Beijing, People's Republic of China
| | - Zhiwei Zhao
- College of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, People's Republic of China
| | - Huitao Yu
- College of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, People's Republic of China
| | - He Sun
- College of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, People's Republic of China
| | - Xin Ge
- College of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, People's Republic of China
| | - Ruiguang Xing
- College of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, People's Republic of China
| | - Bangwen Zhang
- Analysis and Testing Center, Inner Mongolia University of Science and Technology, Baotou, People's Republic of China
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31
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Zhang J, Ge Y, Qin L, Huang W, Li Z. Synthesis of a lignin-based surfactant through amination, sulfonation, and acylation. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2017.1385478] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jiubing Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Peoples R China
| | - Yuanyuan Ge
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Peoples R China
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, Peoples R China
| | - Li Qin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Peoples R China
| | - Wenxing Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Peoples R China
| | - Zhili Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Peoples R China
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, Peoples R China
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32
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Liu Y, Xin H, Yin D, Wang J, Yang Z, Qiao Q. Synthesis of dual-core Mannich bases bearing ferrocenyl and phenothiazinyl groups. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Rashidi Nodeh H, Sereshti H, Zamiri Afsharian E, Nouri N. Enhanced removal of phosphate and nitrate ions from aqueous media using nanosized lanthanum hydrous doped on magnetic graphene nanocomposite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 197:265-274. [PMID: 28395235 DOI: 10.1016/j.jenvman.2017.04.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/23/2017] [Accepted: 04/02/2017] [Indexed: 05/12/2023]
Abstract
A novel nanocomposite adsorbent based on nanosized lanthanum hydroxide doped onto magnetic reduced graphene oxide (MG@La) was synthesized and used for removal of phosphate and nitrate ions from river and sewage media. The composition, surface properties and morphology of the as prepared adsorbent were studied using Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and field emission scanning electron microscopy (FE-SEM). The influence of main parameters on the efficiency of removal process including adsorbent dosage, salt addition, solution pH, contact time, and concentration of the analytes were thoroughly investigated. The validity of the experimental process was checked by the adsorption isotherm and adsorption kinetics models. The obtained data were well fitted to Langmuir isotherm and pseudo-second-order kinetic models. The developed adsorbent showed high adsorption capacities of 116.28 mg g-1 and 138.88 mg g-1 for phosphate and nitrate ions, respectively. Additionally, Langmuir isotherm and free energy were suggested monolayer pattern and physisorption mechanism for adsorption process, respectively. Finally, the field application of newly synthesized MG@La provided high removal efficiencies (74%-90%) for phosphate and nitrate ions in real river and sewage water samples.
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Affiliation(s)
- Hamid Rashidi Nodeh
- Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran
| | - Hassan Sereshti
- Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran.
| | | | - Nina Nouri
- Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran
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Nikafshar S, Zabihi O, Moradi Y, Ahmadi M, Amiri S, Naebe M. Catalyzed Synthesis and Characterization of a Novel Lignin-Based Curing Agent for the Curing of High-Performance Epoxy Resin. Polymers (Basel) 2017; 9:polym9070266. [PMID: 30970943 PMCID: PMC6432449 DOI: 10.3390/polym9070266] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/01/2017] [Accepted: 07/02/2017] [Indexed: 11/18/2022] Open
Abstract
In this study, lignin, an aromatic compound from the forestry industry, was used as a renewable material to synthesize a new aromatic amine curing agent for epoxy resin. Firstly, lignin was separated from black liquor and hydroxyl groups were converted to tosyl groups as leaving groups. Then, primary amination was conducted using an ammonia solution at high pressure and temperature, in the presence of a nano-alumina-based catalyst. The structure of the nanocatalyst was confirmed by FT-IR, ICP, SEM, and XPS analyses. According to the FT-IR spectra, a demethylation reaction, the substitution of hydroxyl groups with tosyl groups, and then an amination reaction were successfully performed on lignin, which was further confirmed by the 13C NMR and CHNS analyses. The active hydrogen equivalent of aminated lignin was determined and three samples with 9.9 wt %, 12.9 wt %, and 15.9 wt % of aminated lignin, as curing agents, were prepared for curing the diglycidyl ether of bisphenol A (DGEBA). The thermal characteristics of the curing process of these epoxy samples were determined by DSC and TGA analyses. Moreover, the mechanical performance of the cured epoxy systems, e.g., the tensile strength and Izod impact strength, were measured, showing that in the presence of 12.9 wt % aminated lignin, the mechanical properties of the aminated lignin-epoxy system exhibited the best performance, which was competitive, compared to the epoxy systems cured by commercial aromatic curing agents.
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Affiliation(s)
- Saeid Nikafshar
- Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666, Iran.
| | - Omid Zabihi
- Institute for Frontier Materials, Deakin University, Geelong VIC 3216, Victoria, Australia.
| | - Yousef Moradi
- Department of Organic Chemistry, Faculty of Chemistry, Isfahan University of Technology, Isfahan 8415683111, Iran.
| | - Mojtaba Ahmadi
- Institute for Frontier Materials, Deakin University, Geelong VIC 3216, Victoria, Australia.
| | - Saba Amiri
- Department of Applied Chemistry, Faculty of Chemistry, Urmia University, Urmia 5756151818, Iran.
| | - Minoo Naebe
- Institute for Frontier Materials, Deakin University, Geelong VIC 3216, Victoria, Australia.
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Qin L, Ge Y, Deng B, Li Z. Poly (ethylene imine) anchored lignin composite for heavy metals capturing in water. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2016.11.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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36
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A novel polylysine–resorcinol base γ-alumina nanotube hybrid material for effective adsorption/preconcentration of cadmium from various matrices. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.10.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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37
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Teng X, Xu H, Song W, Shi J, Xin J, Hiscox WC, Zhang J. Preparation and Properties of Hydrogels Based on PEGylated Lignosulfonate Amine. ACS OMEGA 2017; 2:251-259. [PMID: 31457225 PMCID: PMC6641139 DOI: 10.1021/acsomega.6b00296] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/16/2017] [Indexed: 05/27/2023]
Abstract
Sodium lignosulfonate (SLS) was aminated to obtain a lignin amine (LA) compound, which was subsequently crosslinked with poly(ethylene glycol) diglycidyl ether (PEGDGE) to obtain hydrogels. The chemical structure of the resulting LA-derived hydrogel (LAH) was characterized by Fourier transform infrared (FTIR) spectroscopy, solid-state 13C NMR spectroscopy, and elemental analysis, and the interior morphology of the freeze-dried hydrogel was examined by scanning electron microscopy. NMR and FTIR spectroscopy results indicated that the amino groups of LA reacted with PEGDGE in the crosslinking reaction. The lignin content in the resulting hydrogel increased with an increase in the LA/PEGDGE weight ratio in the reaction, approaching a maximum (∼71 wt %) and leveling off. The hydrogel with such a composition happened to be the same as the one prepared by reacting the primary amines of LA and epoxy groups of PEGDGE in equal stoichiometry. These results strongly suggest that the formation of the hydrogel network structure was largely dictated by the reactions between the primary amines and epoxy groups. The gels with lignin contents at this level exhibited a superior swelling capacity, viscoelasticity, and shear properties.
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Affiliation(s)
- Xiaoxu Teng
- School
of Chemistry and Chemical Engineering, Yangtze
Normal University, No. 16 Juxian Road, Fuling District, Chongqing 408100, China
- Composite
Materials and Engineering Center, Washington
State University, P.O. Box 641806, Pullman, Washington 99164, United States
| | - Hui Xu
- Composite
Materials and Engineering Center, Washington
State University, P.O. Box 641806, Pullman, Washington 99164, United States
| | - Wenjia Song
- Composite
Materials and Engineering Center, Washington
State University, P.O. Box 641806, Pullman, Washington 99164, United States
| | - Jianwei Shi
- School
of Chemistry and Chemical Engineering, Yangtze
Normal University, No. 16 Juxian Road, Fuling District, Chongqing 408100, China
| | - Junna Xin
- Composite
Materials and Engineering Center, Washington
State University, P.O. Box 641806, Pullman, Washington 99164, United States
| | - William C. Hiscox
- Nuclear
Magnetic Resonance Center, Washington State
University, P.O. Box 4630, Pullman, Washington 99164, United States
| | - Jinwen Zhang
- Composite
Materials and Engineering Center, Washington
State University, P.O. Box 641806, Pullman, Washington 99164, United States
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Li W, Zhang S, Zhao Y, Huang S, Zhao J. Molecular docking and molecular dynamics simulation analyses of urea with ammoniated and ammoxidized lignin. J Mol Graph Model 2016; 71:58-69. [PMID: 27846422 DOI: 10.1016/j.jmgm.2016.11.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 11/03/2016] [Accepted: 11/06/2016] [Indexed: 10/20/2022]
Abstract
Ammoniated lignin, prepared through the Mannich reaction of lignin, has more advantages as a slow-release carrier of urea molecules than ammoxidized lignin and lignin. The advantages of the ammoniated lignin include its amine groups added and its high molecular mass kept as similar as that of lignin. Three organic molecules including guaiacyl, 2-hydroxybenzylamine and 5-carbamoylpentanoic acid are monomers respectively in lignin, ammoniated lignin and ammoxidized lignin. We studied the difference between the interactions of lignin, ammoniated lignin and ammoxidized lignin with respect to urea, based on radial distribution functions (RDFs) results from molecular dynamics (MD) simulations. Glass transition temperature (Tg) and solubility parameter (δ) of ammoniated and ammoxidized lignin have been calculated by MD simulations in the constant-temperature and constant-pressure ensemble (NPT). Molecular docking results showed the interaction sites of the urea onto the ammoniated and ammoxidized lignin and three different interaction modes were identified. Root mean square deviation (RMSD) values could indicate the mobilities of the urea molecule affected by the three different interaction modes. A series of MD simulations in the constant-temperature and constant-volume ensemble (NVT) helped us to calculate the diffusivity of urea which was affected by the content of urea in ammoniated and ammoxidized lignin.
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Affiliation(s)
- Wenzhuo Li
- Department of Chemistry and Material Science, Nanjing Forestry University, Nanjing 210037, People's Republic of China.
| | - Song Zhang
- Department of Chemistry and Material Science, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Yingying Zhao
- Department of Chemistry and Material Science, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Shuaiyu Huang
- Department of Chemistry and Material Science, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Jiangshan Zhao
- Department of Chemistry and Material Science, Nanjing Forestry University, Nanjing 210037, People's Republic of China
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Pal A, Majumder K, Bandyopadhyay A. Surfactant mediated synthesis of poly(acrylic acid) grafted xanthan gum and its efficient role in adsorption of soluble inorganic mercury from water. Carbohydr Polym 2016; 152:41-50. [DOI: 10.1016/j.carbpol.2016.06.064] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/03/2016] [Accepted: 06/15/2016] [Indexed: 12/27/2022]
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40
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41
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Conversion of organosolv lignin into an efficient mercury ion adsorbent by a microwave-assisted method. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.03.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Abu Hasan H, Sheikh Abdullah SR, Tan Kofli N, Yeoh SJ. Interaction of environmental factors on simultaneous biosorption of lead and manganese ions by locally isolated Bacillus cereus. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.03.038] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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43
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A novel polymeric adsorbent by a self-doped manner: synthesis, characterization, and adsorption performance to phenol from aqueous solution. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1610-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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44
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Li Z, Xiao D, Ge Y, Koehler S. Surface-Functionalized Porous Lignin for Fast and Efficient Lead Removal from Aqueous Solution. ACS APPLIED MATERIALS & INTERFACES 2015; 7:15000-9. [PMID: 26098016 DOI: 10.1021/acsami.5b03994] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The development of ecofriendly sorbents for fast and efficient removal of heavy metals from aqueous media still remains a significant challenge. Here, we report that this task can be addressed by creating a porous naturally occurring polymer, as illustrated by functionalizing lignin with large numbers of mesopores and functional groups. We show that surface-functionalized porous lignin (SFPL), obtained by a two-step process, has a large surface area of 22.3 m2/g, 12 times that of lignin, and a high density of dithiocarbamate groups (2.8 mmol/g). SFPL was found to exhibit an excellent adsorption performance toward lead ions dissolved in water. For example, 99% of the lead ions from 50 mL of a solution containing 20 mg/L lead ions was removed in just 30 min by 0.01 g of SFPL. The saturated adsorption capacity of SFPL for lead ions was found to be 188 mg/g, which is 13 times that of the original lignin and 7 times that of activated carbon. The adsorption process is endothermic and involves intraparticle diffusion and chemical adsorption between lead ions and the functional groups of SFPL. The cost effectiveness and environmental friendliness of SFPL make it a promising material for removing lead and other heavy metals from wastewater.
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Affiliation(s)
- Zhili Li
- †School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
- ‡School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Duo Xiao
- †School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yuanyuan Ge
- †School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Stephan Koehler
- ‡School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
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