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Zheng C, Sun K, Wu Q, Sun Y, Xu B. Adsorption of ionic contaminants from complex water matrices by versatile chitosan-based beads. BIORESOURCE TECHNOLOGY 2024; 411:131332. [PMID: 39181510 DOI: 10.1016/j.biortech.2024.131332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
Most adsorbents are currently restricted by their single function in pollutant removal from complex wastewater. Herein, we constructed a versatile chitosan-based adsorbent (MC-DA) by grafting amphoteric copolymers with high pH-responsiveness property, aiming at the removal of multiple ionic contaminants. Specifically, the surface charge and hydrophobicity/hydrophilicity of MC-DA can be finely tuned under different pH conditions. As a result, the effective adsorption of cationic methylene blue (MB) and anionic Acid Orange 7 (AO7) with capacities of 627.4 mg/g and 1146.8 mg/g were achieved respectively, superior to most reported materials. Regarding the characterization results, the adsorption mechanisms for MB adsorption were electrostatic and hydrophobic interactions, while the electrostatic attraction was the main driving force for AO7 adsorption. Apart from the versatile adsorption performance, high acid resistance (pH ≥ 2.0), good reusability and rapid separation property under an external magnetic field suggested MC-DA's promising environmental benefits and practical application potential in water remediation.
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Affiliation(s)
- Chaofan Zheng
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China.
| | - Kuiyuan Sun
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China
| | - Qu Wu
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China
| | - Yongjun Sun
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China
| | - Bincheng Xu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
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2
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Khoo PS, Ilyas RA, Aiman A, Wei JS, Yousef A, Anis N, Zuhri MYM, Abral H, Sari NH, Syafri E, Mahardika M. Revolutionizing wastewater treatment: A review on the role of advanced functional bio-based hydrogels. Int J Biol Macromol 2024; 278:135088. [PMID: 39197608 DOI: 10.1016/j.ijbiomac.2024.135088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 07/26/2024] [Accepted: 08/24/2024] [Indexed: 09/01/2024]
Abstract
Water contamination poses a significant challenge to environmental and public health, necessitating sustainable wastewater treatment solutions. Adsorption is one of the most widely used techniques for purifying water, as it effectively removes contaminants by transferring them from the liquid phase to a solid surface. Bio-based hydrogel adsorbents are gaining popularity in wastewater treatment due to their versatility in fabrication and modification methods, which include blending, grafting, and crosslinking. Owning to their unique structure and large surface area, modified hydrogels containing reactive groups like amino, hydroxyl, and carboxyl, or functionalized hydrogels with inorganic nanoparticles particularly graphene nanomaterials, have demonstrated promising adsorption capabilities for both inorganic and organic contaminants. Bio-based hydrogels have excellent physicochemical properties and are non-toxic, environmentally friendly, and biodegradable, making them extremely effective at removing contaminants like heavy metal ions, dyes, pharmaceutical pollutants, and organic micropollutants. The versatility of hydrogels allows for various forms to be used, such as films, beads, and nanocomposites, providing flexibility in handling different contaminants like dyes, radionuclides, and heavy metals. Additionally, researchers also have shown the potential for recycling and regenerating post-treatment hydrogels. This approach not only addresses the challenges of wastewater treatment but also offers sustainable and effective solutions for mitigating water pollution.
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Affiliation(s)
- Pui San Khoo
- Centre for Advanced Composite Materials (CACM), Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia.
| | - R A Ilyas
- Centre for Advanced Composite Materials (CACM), Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia; Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia; Institute of Tropical Forest and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Centre of Excellence for Biomass Utilization, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
| | - Alif Aiman
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia.
| | - Jau Sh Wei
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia.
| | - Ahmad Yousef
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia.
| | - Nurul Anis
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia.
| | - M Y M Zuhri
- Institute of Tropical Forest and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Research Centre for Advanced Engineering Materials and Composites (AEMC), Department of Mechanical and Manufacturing Engineering, University Putra Malaysia (UPM), 43400 UPM Serdang, Selangor, Malaysia.
| | - Hairul Abral
- Laboratory of Nanoscience and Technology, Department of Mechanical Engineering, Andalas University, Padang 25163, Indonesia; Research Collaboration Center for Nanocellulose, BRIN-Andalas University, Padang 25163, Indonesia.
| | - Nasmi Herlina Sari
- Department of Mechanical Engineering, Faculty of Engineering, University of Mataram, West Nusa Tenggara 83125, Indonesia.
| | - Edi Syafri
- Department of Agricultural and Computer Engineering, Politeknik Pertanian Negeri Payakumbuh, Limapuluh Kota, West Sumatra 26271, Indonesia.
| | - Melbi Mahardika
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency (BRIN), Cibinong, Bogor 16911, Indonesia.
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3
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Ma M, Ke X, Wang T, Li J, Ye H. A novel double-network hydrogel made from electrolytic manganese slag and polyacrylic acid-polyacrylamide for removal of heavy metals in wastewater. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132722. [PMID: 37865073 DOI: 10.1016/j.jhazmat.2023.132722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 09/28/2023] [Accepted: 10/03/2023] [Indexed: 10/23/2023]
Abstract
Electrolytic manganese slag (EMS), a bulk waste generated in industrial electrolytic manganese production, can be a cost-effective adsorbent for heavy metals removal after appropriate modification. In this study, EMS was activated by NaOH and then used to make the EMS-based double-network hydrogel (an EMS/PAA hydrogel) via a one-pot method. The results showed that the EMS/PAA hydrogel exhibits a high selective adsorption capacity of 153.85, 113.63 and 54.35 mg·g-1 for Pb (II), Cd (II) and Cu (II), respectively. In addition, Density Functional Theory (DFT) suggests that the adsorption energies (Ead) of Pb, Cd and Cu on SiO2/PAA of the EMS/PAA gels are - 4.15, - 1.96, and - 2.83 eV, respectively, and SiO2/PAA, with a strong affinity to Pb2+, is one of the reasons for the selective adsorption capacity of EMS/PAA gel for Pb2+. The removal efficiency of the EMS/PAA gel for Pb2+, Cd2+, Cu2+ decreased after four adsorption-desorption cycles by 20.00 %, 24.56 % and 46.56 %, respectively. Mechanism studies suggested that the elimination of the heavy metals by EMS/PAA gels mainly involves electrostatic attraction, inner-sphere complexation, and coordination interactions. The EMS/PAA hydrogels not only have high adsorption capacity, but are also easy to prepare and circulate, making them ideal for practical applications.
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Affiliation(s)
- Mengyu Ma
- Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Xuan Ke
- Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Ting Wang
- Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Jia Li
- Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China.
| | - Hengpeng Ye
- Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, PR China
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4
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Xia M, Wei Y, Lai M, Yang X, Gao Z, Zhao H, Jia H, Chang J, Ji X. Hydrogel-potassium humate composite alleviates cadmium toxicity of tobacco by regulating Cd bioavailability. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115361. [PMID: 37597289 DOI: 10.1016/j.ecoenv.2023.115361] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/27/2023] [Accepted: 08/10/2023] [Indexed: 08/21/2023]
Abstract
Cadmium (Cd) removal from soil to reduce Cd accumulation in plants is essential for agroecology, food safety, and human health. Cd enters plants from soil and affects plant growth and development. Hydrogels can easily combine with Cd, thereby altering its bioavailability in soil. However, few studies have evaluated the effects of hydrogel on the complex phytotoxicity caused by Cd uptake in plants and the microbial community structure. Herein, a new poly (acrylic acid)-grafted starch and potassium humate composite (S/K/AA) hydrogel was added to soil to evaluate its impact on tobacco growth and the soil microenvironment. The results indicate that the addition of S/K/AA hydrogel can significantly improve the biomass, chlorophyll (Chl) content, and photosynthetic capacity of tobacco plants during Cd stress conditions, and decrease Cd concentration, probably by affecting Cd absorption through the expression of Cd absorption transporters (e.g., NRAMP5, NRAMP3, and IRT1). Moreover, the application of S/K/AA hydrogel not only reduced the accumulation of reactive oxygen species (ROS), but also reduced the antioxidant activities of peroxidase (POD), superoxide dismutase (SOD), and catalase (CAT), suggesting that S/K/AA hydrogel alleviates Cd toxicity via a non-antioxidant pathway. Notably, we further analyzed the effectiveness of the hydrogel on microbial communities in Cd-contaminated soil and found that it increased the Cd-tolerant microbial community (Arthrobacter, Massilia, Streptomyces), enhancing the remediation ability of Cd-contaminated soil and helping tobacco plants to alleviate Cd toxicity. Overall, our study provides primary insights into how S/K/AA hydrogel affects Cd bioavailability and alleviates Cd toxicity in plants.
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Affiliation(s)
- Maolin Xia
- National Tobacco Cultivation & Physiology & Biochemistry Research Centre, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Yuewei Wei
- National Tobacco Cultivation & Physiology & Biochemistry Research Centre, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Miao Lai
- National Tobacco Cultivation & Physiology & Biochemistry Research Centre, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiaopeng Yang
- National Tobacco Cultivation & Physiology & Biochemistry Research Centre, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Ziting Gao
- National Tobacco Cultivation & Physiology & Biochemistry Research Centre, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Haojie Zhao
- National Tobacco Cultivation & Physiology & Biochemistry Research Centre, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Hongfang Jia
- National Tobacco Cultivation & Physiology & Biochemistry Research Centre, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Jianbo Chang
- Sanmenxia Branch of Henan Provincial Tobacco Corporation, Sanmenxia 472000, China.
| | - Xiaoming Ji
- National Tobacco Cultivation & Physiology & Biochemistry Research Centre, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
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5
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Shao Z, Shen D, Fan F, Sun X, Ding J, Fang Y, Li P. Facile synthesis of chitosan-tartaric acid biosorbents for removal of Cu(II) and Cd(II) from water and tea beverages. Int J Biol Macromol 2023; 241:124533. [PMID: 37105248 DOI: 10.1016/j.ijbiomac.2023.124533] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/31/2023] [Accepted: 04/16/2023] [Indexed: 04/29/2023]
Abstract
Consumption of water and tea beverages leads to the intake of heavy metals by humans. Development of technology for decontamination greatly reduces the risks of the heavy metal exposure. In this study, environment-friendly chitosan-tartaric acid biosorbents (CTBs) were synthesized by a facile one-step cross-linking strategy to mitigate the Cu(II) and Cd(II) contamination in water and tea beverages. The cross linkage of tartaric acid and chitosan endowed CTBs with excellent properties in aspects of surface roughness, mechanical strength, and acid resistance. Adsorption performance and mechanism of CTBs were studied, and the Langmuir isotherm model and pseudo-second-order kinetic model were adhered during adsorption. Up to 90 % removal efficiencies of Cu(II) and Cd(II) from water and tea beverages by CTBs were achieved. Moreover, the adsorption showed only a slight reduction in the quality of tea beverages. This study offers a new insight for reduction of heavy metals-pollution in beverages.
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Affiliation(s)
- Zhiying Shao
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China; Key Laboratory of Modern Agriculture Equipment and Technology, School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
| | - Dianying Shen
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Fengjiao Fan
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Xinyang Sun
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Jian Ding
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Yong Fang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Peng Li
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China.
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6
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Ghiorghita CA, Lazar MM, Platon IV, Humelnicu D, Doroftei F, Dinu MV. Feather-weight cryostructured thiourea-chitosan aerogels for highly efficient removal of heavy metal ions and bacterial pathogens. Int J Biol Macromol 2023; 235:123910. [PMID: 36870629 DOI: 10.1016/j.ijbiomac.2023.123910] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/02/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Designing of economically feasible and recyclable polysaccharide-based materials with thiourea functional groups for removal of specific metal ions such as Ag(I), Au(I), Pb(II) or Hg(II) remains a major challenge for environmental applications. Here, we introduce ultra-lightweight thiourea-chitosan (CSTU) aerogels engineered by combining successive freeze-thawing cycles with covalent formaldehyde-mediated cross-linking and lyophilization. All aerogels exhibited outstanding low densities (0.0021-0.0103 g/cm3) and remarkable high specific surface areas (416.64-447.26 m2/g), outperforming the common polysaccharide-based aerogels. Benefitting from their superior structural features (honeycomb interconnected pores and high porosity), CSTU aerogels demonstrate fast sorption rates and excellent performance in sorption of heavy metal ions from highly-concentrated single or binary-component mixtures (1.11 mmol Ag (I)/g and 0.48 mmol Pb(II)/g). A remarkable recycling stability was observed after five sorption-desorption-regeneration cycles when the removal efficiency was up to 80 %. These results support the high potential of CSTU aerogels in the treatment of metal-containing wastewater. Moreover, the Ag(I)-loaded CSTU aerogels exhibited excellent antimicrobial properties against Escherichia coli and Staphylococcus aureus bacterial strains, the killing rate being around 100 %. This data points towards the potential application of developed aerogels in circular economy, by employing the spent Ag(I)-loaded aerogels in the biological decontamination of waters.
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Affiliation(s)
- Claudiu-Augustin Ghiorghita
- Department of Functional Polymers, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487, Iasi, Romania.
| | - Maria Marinela Lazar
- Department of Functional Polymers, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487, Iasi, Romania
| | - Ioana-Victoria Platon
- Department of Functional Polymers, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487, Iasi, Romania
| | - Doina Humelnicu
- Faculty of Chemistry, "Alexandru Ioan Cuza" University of Iasi, Carol I Blvd. 11, 700506, Iasi, Romania
| | - Florica Doroftei
- Department of Functional Polymers, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487, Iasi, Romania
| | - Maria Valentina Dinu
- Department of Functional Polymers, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487, Iasi, Romania.
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7
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Huang Y, Shen Y, Zhang G, Lu P, Wu Z, Tang R, Liu J, Wu X, Wang C, Zheng H. Highly effective and selective removal of lead ions by polymer-grafted silica-coated acid-resistant magnetic chitosan composites. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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8
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Ghiorghita CA, Dinu MV, Lazar MM, Dragan ES. Polysaccharide-Based Composite Hydrogels as Sustainable Materials for Removal of Pollutants from Wastewater. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238574. [PMID: 36500664 PMCID: PMC9736407 DOI: 10.3390/molecules27238574] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Nowadays, pollution has become the main bottleneck towards sustainable technological development due to its detrimental implications in human and ecosystem health. Removal of pollutants from the surrounding environment is a hot research area worldwide; diverse technologies and materials are being continuously developed. To this end, bio-based composite hydrogels as sorbents have received extensive attention in recent years because of advantages such as high adsorptive capacity, controllable mechanical properties, cost effectiveness, and potential for upscaling in continuous flow installations. In this review, we aim to provide an up-to-date analysis of the literature on recent accomplishments in the design of polysaccharide-based composite hydrogels for removal of heavy metal ions, dyes, and oxyanions from wastewater. The correlation between the constituent polysaccharides (chitosan, cellulose, alginate, starch, pectin, pullulan, xanthan, salecan, etc.), engineered composition (presence of other organic and/or inorganic components), and sorption conditions on the removal performance of addressed pollutants will be carefully scrutinized. Particular attention will be paid to the sustainability aspects in the selected studies, particularly to composite selectivity and reusability, as well as to their use in fixed-bed columns and real wastewater applications.
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Zhang P, Zou K, Yuan L, Liu J, Liu B, Qing TP, Feng B. A biomass resource strategy for alginate-polyvinyl alcohol double network hydrogels and their adsorption to heavy metals. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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10
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Luan J, Zhao C, Zhai Q, Liu W, Ke X, Liu X. The highly efficient simultaneous removal of Pb 2+ and methylene blue induced by the release of endogenous active sites of montmorillonite. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:2336-2347. [PMID: 36378183 DOI: 10.2166/wst.2022.337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The inherent periodic structure of montmorillonite limits the adsorption capacity of its endogenous active units such as Si-O tetrahedron and Al-O octahedron for pollutants. The high-intensity ultrasound method was used to release these active units and the layer-by-layer assembly was adopted to prepare carbon@chitosan@montmorillointe microsphere adsorbent (C@CS@Mt) to give full play to the adsorption capacity of montmorillonite. The montmorillonite nanosheet exhibited good hole-making ability, resulting in high surface area, pore volume and pore diameter of microspheres. Benefitting from the release of active sites in Si-O tetrahedron and Al-O octahedron of montmorillonite nanosheets, the adsorption capacity of C@CS@Mt was significantly improved. The maximum adsorption capacities of Pb2+ and methylene blue (MB) reached 884.19 mg·g-1 and 326.21 mg·g-1, respectively. The simultaneous adsorption experiments indicated that the occupation of active sites by Pb2+ caused the observed decrease of MB adsorption capacity. The theoretical calculations indicated that Pb was preferentially adsorbed by active adsorption units due to strong electron donating ability in comparison to MB. As an active unit, Si-O tetrahedron exhibited stronger adsorption capacity for cationic dyes than Al-O octahedron due to both the large electronegativity and lower adsorption binding energy.
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Affiliation(s)
- Jingde Luan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, China E-mail: ; College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China
| | - Chen Zhao
- College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China
| | - Qian Zhai
- College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China
| | - Wengang Liu
- School of Resources and Civil Engineering, Northeastern University, 11 Wenhua Road, Heping District, Shenyang, 110819, China
| | - Xin Ke
- College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China
| | - Xiaoyang Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, China E-mail:
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11
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Chen J, Peng Q, Peng X, Zhang H, Zeng H. Probing and Manipulating Noncovalent Interactions in Functional Polymeric Systems. Chem Rev 2022; 122:14594-14678. [PMID: 36054924 DOI: 10.1021/acs.chemrev.2c00215] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Noncovalent interactions, which usually feature tunable strength, reversibility, and environmental adaptability, have been recognized as driving forces in a variety of biological and chemical processes, contributing to the recognition between molecules, the formation of molecule clusters, and the establishment of complex structures of macromolecules. The marriage of noncovalent interactions and conventional covalent polymers offers the systems novel mechanical, physicochemical, and biological properties, which are highly dependent on the binding mechanisms of the noncovalent interactions that can be illuminated via quantification. This review systematically discusses the nanomechanical characterization of typical noncovalent interactions in polymeric systems, mainly through direct force measurements at microscopic, nanoscopic, and molecular levels, which provide quantitative information (e.g., ranges, strengths, and dynamics) on the binding behaviors. The fundamental understandings of intermolecular and interfacial interactions are then correlated to the macroscopic performances of a series of noncovalently bonded polymers, whose functions (e.g., stimuli-responsiveness, self-healing capacity, universal adhesiveness) can be customized through the manipulation of the noncovalent interactions, providing insights into the rational design of advanced materials with applications in biomedical, energy, environmental, and other engineering fields.
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Affiliation(s)
- Jingsi Chen
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Qiongyao Peng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Xuwen Peng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hao Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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12
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Seida Y, Tokuyama H. Hydrogel Adsorbents for the Removal of Hazardous Pollutants—Requirements and Available Functions as Adsorbent. Gels 2022; 8:gels8040220. [PMID: 35448121 PMCID: PMC9028382 DOI: 10.3390/gels8040220] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 02/04/2023] Open
Abstract
Over the last few decades, various adsorption functions of polymer hydrogels for the removal of hazardous pollutants have been developed. The performance of hydrogel adsorbents depends on the constituents of the gels and the functions produced by the polymer networks of the gels. Research on hydrogels utilizing the characteristic functions of polymer networks has increased over the last decade. The functions of polymer networks are key to the development of advanced adsorbents for the removal of various pollutants. No review has discussed hydrogel adsorbents from the perspective of the roles and functions of polymer networks in hydrogels. This paper briefly reviews the basic requirements of adsorbents and the general characteristics of hydrogels as adsorbents. Thereafter, hydrogels are reviewed on the basis of the roles and functions of the polymer networks in them for the removal of hazardous pollutants by introducing studies published over the last decade. The application of hydrogels as adsorbents for the removal of hazardous pollutants is discussed as well.
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Affiliation(s)
- Yoshimi Seida
- Natural Science Laboratory, Toyo University, 5-28-20 Hakusan, Bunkyo-ku, Tokyo 112-8606, Japan
- Correspondence: ; Tel.: +81-3-3945-4894
| | - Hideaki Tokuyama
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo 184-8588, Japan;
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13
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Thakur S, Sharma B, Thakur A, Kumar Gupta V, Alsanie WF, Makatsoris C, Kumar Thakur V. Synthesis and characterisation of zinc oxide modified biorenewable polysaccharides based sustainable hydrogel nanocomposite for Hg 2+ ion removal: Towards a circular bioeconomy. BIORESOURCE TECHNOLOGY 2022; 348:126708. [PMID: 35066128 DOI: 10.1016/j.biortech.2022.126708] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/07/2022] [Accepted: 01/08/2022] [Indexed: 05/28/2023]
Abstract
Industrial metal ion pollution has been considered the chief source of water contaminants all over the world. In the present research, we have prepared gum tragacanth cross-linked 2-hydroxyethyl methacrylate-co-acrylamide (GT-cl-(HEMA-co-AAm)) hydrogel and gum tragacanth cross-linked 2-hydroxyethyl methacrylate-co-acrylamide/zinc oxide (GT-cl-(HEMA-co-AAm)/ZnO) hydrogel composite with better Hg2+ adsorption capability. GT-cl-(HEMA-co-AAm)/ZnO hydrogel composite (154.8 mg g-1) exhibited higher Hg2+ adsorption than GT-cl-(HEMA-co-AAm) hydrogel. To address the performance of GT-cl-(HEMA-co-AAm) hydrogel and GT-cl-(HEMA-co-AAm)/ZnO hydrogel composite, batch adsorption experiments were successfully conducted under different optimised conditions. At last, in-vitro antibacterial activities of Hg2+ loaded GT-cl-(HEMA-co-AAm) and GT-cl-(HEMA-co-AAm)/ZnO were performed in two different well Staphylococcus aureus (gram-positive) and Pseudomonas aeruginosa (gram-negative) bacteria. As a positive control, ampicillin was employed against both types of bacteria. This methodology for the reusability of material has a great ecofriendly impression for minimising secondary waste derived from adsorption and can help design upgraded antibacterial agents.
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Affiliation(s)
- Sourbh Thakur
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland; School of Advanced Chemical Sciences, Shoolini University, Solan 173229, Himachal Pradesh, India
| | - Bhawna Sharma
- School of Advanced Chemical Sciences, Shoolini University, Solan 173229, Himachal Pradesh, India
| | - Abhishek Thakur
- Department of Physics, Gautam Group of Colleges, Hamirpur 177001, Himachal Pradesh Unversity, India
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, SRUC, Edinburgh EH9 3JG, UK
| | - Walaa F Alsanie
- Department of Clinical Laboratories Sciences, The Faculty of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Charalampos Makatsoris
- Department of Engineering, Faculty of Natural & Mathematical Sciences, King's College London, United Kingdom
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC, Edinburgh EH9 3JG, UK; School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun 248007, India.
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14
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Conjoined-network induced highly tough hydrogels by using copolymer and nano-cellulose for oilfield water plugging. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.01.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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15
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In-situ fabrication of surfactant modified CNT-based novel bio-composite and its performance evaluation for simultaneous removal of anionic dyes: Optimization by Box-Behnken design. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120262] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Lakshmi D, Akhil D, Kartik A, Gopinath KP, Arun J, Bhatnagar A, Rinklebe J, Kim W, Muthusamy G. Artificial intelligence (AI) applications in adsorption of heavy metals using modified biochar. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 801:149623. [PMID: 34425447 DOI: 10.1016/j.scitotenv.2021.149623] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 05/22/2023]
Abstract
The process of removal of heavy metals is important due to their toxic effects on living organisms and undesirable anthropogenic effects. Conventional methods possess many irreconcilable disadvantages pertaining to cost and efficiency. As a result, the usage of biochar, which is produced as a by-product of biomass pyrolysis, has gained sizable traction in recent times for the removal of heavy metals. This review elucidates some widely recognized harmful heavy metals and their removal using biochar. It also highlights and compares the variety of feedstock available for preparation of biochar, pyrolysis variables involved and efficiency of biochar. Various adsorption kinetics and isotherms are also discussed along with the process of desorption to recycle biochar for reuse as adsorbent. Furthermore, this review elucidates the advancements in remediation of heavy metals using biochar by emphasizing the importance and advantages in the usage of machine learning (ML) and artificial intelligence (AI) for the optimization of adsorption variables and biochar feedstock properties. The usage of AI and ML is cost and time-effective and allows an interdisciplinary approach to remove heavy metals by biochar.
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Affiliation(s)
- Divya Lakshmi
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110 Chennai, Tamil Nadu, India
| | - Dilipkumar Akhil
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110 Chennai, Tamil Nadu, India
| | - Ashokkumar Kartik
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110 Chennai, Tamil Nadu, India
| | - Kannappan Panchamoorthy Gopinath
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110 Chennai, Tamil Nadu, India
| | - Jayaseelan Arun
- Centre for Waste Management, International Research Centre, Sathyabama Institute of Science and Technology, Jeppiaar Nagar (OMR), Chennai 600119, Tamil Nadu, India
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130 Mikkeli, Finland
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste Management, Laboratory of Soil and Groundwater Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Guangjin-Gu, Seoul, Republic of Korea
| | - Woong Kim
- Department of Environmental Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Govarthanan Muthusamy
- Department of Environmental Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
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17
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Yadav A, Bagotia N, Sharma AK, Kumar S. Simultaneous adsorptive removal of conventional and emerging contaminants in multi-component systems for wastewater remediation: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149500. [PMID: 34388884 DOI: 10.1016/j.scitotenv.2021.149500] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
The rapid growth of population and industrialization results in pollution of freshwater sources which leads to the water stress conditions on the world in future. Adsorption is a low cost and popular technique for the removal of contaminants from water bodies. Most of the reports till date are on removal of a single component from aqueous solutions using this technique, but the real-world effluent contains multiple contaminants such as dyes, heavy metals, pesticides, antibiotics and many more. Therefore, a study on simultaneous removal of contaminants is highly needed to obtain a suitable adsorbent that can be used commercially. This critical review provides a detailed study on the removal of contaminants in the presence of other contaminant/s i.e., from a multi-component system (MCS). The different possible interaction mechanisms in MCS like synergism, antagonism and non-interaction are discussed. The MCS containing the mixture of conventional contaminants such as heavy metals and dyes, and other emerging contaminants such as antibiotics, organic contaminants, pesticides and personal care products are explained in depth. This review article will be helpful for researchers working in the field of simultaneous removal of contaminants from MCSs for wastewater remediation.
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Affiliation(s)
- Aruna Yadav
- Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani, Haryana 127021, India
| | - Nisha Bagotia
- Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani, Haryana 127021, India
| | - Ashok K Sharma
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Sonepat, Haryana 131039, India
| | - Surender Kumar
- Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani, Haryana 127021, India.
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18
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Sun J, Sun G, Zhao X, Liu X, Zhao H, Xu C, Yan L, Jiang X, Cui Y. Ultrafast and efficient removal of Pb(II) from acidic aqueous solution using a novel polyvinyl alcohol superabsorbent. CHEMOSPHERE 2021; 282:131032. [PMID: 34098306 DOI: 10.1016/j.chemosphere.2021.131032] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
The direct removal of heavy metal ions from acidic wastewater is a hard problem. In this study, a novel superabsorbent, polyvinyl alcohol phosphate ester (PVAP), was designed and prepared to remove Pb(II) from acidic wastewater (pH = 3). The PVAP can absorb water and swell to reach equilibrium within 30 s, which provides the conditions for ultrafast kinetic adsorption. For 100 mg/L Pb(II) solution, the adsorption reaches equilibrium within 5 min, and the removal ratio is more than 99.9% over a wide pH range of 3-6. Adsorption kinetics and isotherm data are consistent with pseudo-second-order and Langmuir model, respectively. The calculated maximum adsorption capacity for Pb(II) is 558.66 mg/g. Thermodynamic results show that the adsorption is spontaneous and exothermic process. The removal ratio for Pb(II) of PVAP still maintains above 99% after ten recycles. The PVAP can also simultaneously remove more than 97% of other heavy metal ions (Cu(II), Cd(II), Zn(II), Co(II), and Ni(II)) from an acidic solution. Moreover, the PVAP can efficiently purify simulated acid mine heavy metal wastewater, and the results meet EPA drinking water standards. The studies of X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FT-IR) spectroscopy prove that the adsorption mechanism involves surface complexation. This new superabsorbent is a promising candidate for acidic heavy metal sewage disposal.
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Affiliation(s)
- Junhua Sun
- School of Chemistry and Chemical Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China
| | - Guoxin Sun
- School of Chemistry and Chemical Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China; Institute for Smart Materials & Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China
| | - Xiuxian Zhao
- Institute for Smart Materials & Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China
| | - Xiaolei Liu
- Institute for Smart Materials & Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China
| | - Heng Zhao
- School of Chemistry and Chemical Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China
| | - Chengjin Xu
- Institute for Smart Materials & Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China
| | - Liangguo Yan
- School of Water Conservancy and Environment, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China
| | - Xuchuan Jiang
- Institute for Smart Materials & Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China.
| | - Yu Cui
- School of Chemistry and Chemical Engineering, University of Jinan, No. 336 Nanxinzhuang West Road, 250022, Jinan, PR China.
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19
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McCarthy PC, Zhang Y, Abebe F. Recent Applications of Dual-Stimuli Responsive Chitosan Hydrogel Nanocomposites as Drug Delivery Tools. Molecules 2021; 26:4735. [PMID: 34443323 PMCID: PMC8399112 DOI: 10.3390/molecules26164735] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/19/2021] [Accepted: 08/03/2021] [Indexed: 11/18/2022] Open
Abstract
Polysaccharides are a versatile class of macromolecules that are involved in many biological interactions critical to life. They can be further modified for added functionality. Once derivatized, these polymers can exhibit new chemical properties that can be further optimized for applications in drug delivery, wound healing, sensor development and others. Chitosan, derived from the N-deacetylation of chitin, is one example of a polysaccharide that has been functionalized and used as a major component of polysaccharide biomaterials. In this brief review, we focus on one aspect of chitosan's utility, namely we discuss recent advances in dual-responsive chitosan hydrogel nanomaterials.
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Affiliation(s)
| | - Yongchao Zhang
- Department of Chemistry, Morgan State University, Baltimore, MD 21251, USA
| | - Fasil Abebe
- Department of Chemistry, Morgan State University, Baltimore, MD 21251, USA
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20
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Allen MJ, Sujanani R, Chamseddine A, Freeman BD, Page ZA. Mechanically robust hydrophobized double network hydrogels and their fundamental salt transport properties. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Marshall J. Allen
- Department of Chemistry The University of Texas Austin Texas USA
- McKetta Department of Chemical Engineering The University of Texas Austin Texas USA
| | - Rahul Sujanani
- McKetta Department of Chemical Engineering The University of Texas Austin Texas USA
| | - Alyssa Chamseddine
- McKetta Department of Chemical Engineering The University of Texas Austin Texas USA
| | - Benny D. Freeman
- McKetta Department of Chemical Engineering The University of Texas Austin Texas USA
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21
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Wu Q, Ren M, Zhang X, Li C, Li T, Yang Z, Chen Z, Wang L. Comparison of Cd(II) adsorption properties onto cellulose, hemicellulose and lignin extracted from rice bran. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111230] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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22
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Chen Y, Li L, Li Y, Liu Y, Chen Y, Li H, Li M, Xu F, Liu Y. Preparation of a double-network hydrogel based on wastepaper and its application in the treatment of wastewater containing copper(ii) and methylene blue. RSC Adv 2021; 11:18131-18143. [PMID: 35480218 PMCID: PMC9033242 DOI: 10.1039/d1ra02321g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022] Open
Abstract
To reclaim and utilize wastepaper (WP), a WP/acrylamide double-network hydrogel (WP/PAM) was prepared to transform WP into efficient adsorbent for heavy metals and dye wastewater treatment. The structure and properties of the WP/PAM were characterized systematically by scanning electron microscopy (SEM), thermogravimetric analysis (TGA), swelling performance (SR), Fourier transform infrared spectrum (FTIR), and X-ray photoelectron spectroscopy (XPS). Batch experiments showed that the adsorption process of Cu(ii) and MB followed the pseudo-second-order kinetic model and the Langmuir model. The maximum adsorption capacities of the WP/PAM for Cu(ii) and MB were 142.2 mg g−1 and 1714.5 mg g−1, respectively. The adsorption mechanism of Cu(ii) on the WP/PAM was related to ion exchange and complexation, while MB adsorption was driven by hydrogen bonding and electrostatic interaction. Besides, the WP/PAM performed well in treating simulated wastewater. The regeneration test indicated that the WP/PAM could be successfully reused after 6 cycles. This work provided an alternative choice for the recycling of WP and produced a potential adsorbent for the dye and heavy metals wastewater treatment. In this research, wastepaper was innovatively compounded with acrylamide to prepare a wastepaper/acrylamide double-network hydrogel and was applied to the treatment of the mixed wastewater containing copper(ii) and methylene blue.![]()
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Affiliation(s)
- Yaoning Chen
- College of Environmental Science and Engineering, Hunan University Changsha 410082 China +86 731 88821413 +86 731 88821413.,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education Changsha 410082 China
| | - Linshenzhang Li
- College of Environmental Science and Engineering, Hunan University Changsha 410082 China +86 731 88821413 +86 731 88821413.,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education Changsha 410082 China
| | - Yuanping Li
- College of Municipal and Mapping Engineering, Hunan City University Yiyang Hunan 413000 China
| | - Yihuan Liu
- College of Environmental Science and Engineering, Hunan University Changsha 410082 China +86 731 88821413 +86 731 88821413.,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education Changsha 410082 China
| | - Yanrong Chen
- College of Environmental Science and Engineering, Hunan University Changsha 410082 China +86 731 88821413 +86 731 88821413.,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education Changsha 410082 China
| | - Hui Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry Changsha 410004 P.R. China
| | - Meiling Li
- College of Environmental Science and Engineering, Hunan University Changsha 410082 China +86 731 88821413 +86 731 88821413.,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education Changsha 410082 China
| | - Fangting Xu
- College of Environmental Science and Engineering, Hunan University Changsha 410082 China +86 731 88821413 +86 731 88821413.,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education Changsha 410082 China
| | - Yuqing Liu
- Shenzhen Zhongrun Zhihuan Ecological Environment Technology Co., Ltd Shenzhen 518000 China
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23
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Forgionny A, Acelas NY, Ocampo-Pérez R, Padilla-Ortega E, Leyva-Ramos R, Flórez E. Understanding mechanisms in the adsorption of lead and copper ions on chili seed waste in single and multicomponent systems: a combined experimental and computational study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23204-23219. [PMID: 33439444 DOI: 10.1007/s11356-020-11721-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
In the current work, a deep study to understand the adsorption phenomena occurring in single and multicomponent systems was conducted by using spectroscopic characterization, and computational tools. The experimental results showed that the adsorption capacity of chili seed is higher for Pb2+ (48 mg/g) than Cu2+ (4.1 mg/g) ions in single systems. However, the adsorption study in multicomponent systems provides important conclusions of the concentration effect of the metal ions, showing a significant antagonistic and competitive effect of both ions under equivalent concentrations of them (qPb2+ is 56% reduced) or high concentration of Pb2+ (qCu2+ is 50% reduced). Computational results correlated well with the experimental ones and evidenced all interactions proposed from spectroscopy results, accounting for the occurrence of complexation and electrostatic mechanisms between metal ions and the surface oxygenated functional groups (hydroxyl, carboxyl, and carboxylate) onto chili seed. Chemistry quantum descriptors supported the reactivity behavior of the chemical species implicated. All results evidenced that Pb2+ and Cu2+ adsorption on chili seed surface is governed by the occurrence of combined ionic exchange, π-interaction, complexation, and electrostatic attraction.
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Affiliation(s)
- Angélica Forgionny
- Grupo de Materiales con Impacto, Mat&mpac. Facultad de Ciencias Básicas, Universidad de Medellín, Medellín, Colombia.
| | - Nancy Y Acelas
- Grupo de Materiales con Impacto, Mat&mpac. Facultad de Ciencias Básicas, Universidad de Medellín, Medellín, Colombia
| | - Raúl Ocampo-Pérez
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosi, 78260, San Luis Potosi, Mexico.
| | - Erika Padilla-Ortega
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosi, 78260, San Luis Potosi, Mexico
| | - Roberto Leyva-Ramos
- Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosi, 78260, San Luis Potosi, Mexico
| | - Elizabeth Flórez
- Grupo de Materiales con Impacto, Mat&mpac. Facultad de Ciencias Básicas, Universidad de Medellín, Medellín, Colombia.
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24
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Babazad Z, Kaveh F, Ebadi M, Mehrabian RZ, Juibari MH. Efficient removal of lead and arsenic using macromolecule-carbonized rice husks. Heliyon 2021; 7:e06631. [PMID: 33869855 PMCID: PMC8035667 DOI: 10.1016/j.heliyon.2021.e06631] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/05/2021] [Accepted: 03/25/2021] [Indexed: 12/07/2022] Open
Abstract
The adsorption process using inexpensive adsorbents is one of the methods to remove contaminants from aqueous solutions. Biomass porous carbon based materials are among the most widely used adsorbents in this field. Rice husk is a bio-based adsorbent material for pollutant removal. In this study, the porous carbon material obtained from the rice husk was used for the adsorptive removal of lead (Pb) and arsenic (As) from aqueous solutions. Silica was removed from rice husk structure through the one-step reaction using PTFE. The morphological and crystallographic characteristics of the adsorbent surface were determined by scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. The removal efficiency was investigated under different conditions of pH (3–9), contact time (3–90min), adsorbent amount (0.5–6 g/l) and initially adsorbed concentration (10–100 μg/l) by changing the parameters in the adsorption reactions. The Response Surface Method (RSM), a Box-Behnken design (BBD), was used to optimize adsorption of Lead and Arsenic by Rice husk. The removal efficiency was finally calculated using analysis of variance. According to the adsorption analysis results, the removal efficiency of Pb and As in aqueous solutions increased (up to 97%, 85% for Lead and Arsenic) under optimum conditions.
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Affiliation(s)
- Zeinab Babazad
- Department of Chemistry, Faculty of Sciences, Gorgan Branch, Islamic Azad University, Gorgan, Iran
| | - Fariborz Kaveh
- Department of Chemistry, Faculty of Sciences, Gorgan Branch, Islamic Azad University, Gorgan, Iran
| | - Mehdi Ebadi
- Department of Chemistry, Faculty of Sciences, Gorgan Branch, Islamic Azad University, Gorgan, Iran
| | - Ramin Zafar Mehrabian
- Department of Chemistry, Faculty of Sciences, Gorgan Branch, Islamic Azad University, Gorgan, Iran
| | - Mohammad Habibi Juibari
- Department of Chemistry, Faculty of Sciences, Gorgan Branch, Islamic Azad University, Gorgan, Iran
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25
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Yuan H, Peng J, Ren T, Luo Q, Luo Y, Zhang N, Huang Y, Guo X, Wu Y. Novel fluorescent lignin-based hydrogel with cellulose nanofibers and carbon dots for highly efficient adsorption and detection of Cr(VI). THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 760:143395. [PMID: 33190900 DOI: 10.1016/j.scitotenv.2020.143395] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/20/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
A novel fluorescent lignin-based hydrogel with cellulose nanofibers and carbon dots (CDs) was synthesized for the high-value utilization of lignin and control of hexavalent chromium (Cr(VI)). Its chemical and physical structure was characterized, and its Cr(VI) sorption performance was evaluated. The results demonstrated that 3D porous structures were constructed in this hydrogel. The maximum adsorption capacity of this hydrogel was 599.9 mg/g, and its sorption performance met Freundlich and pseudo-second-order models. Meanwhile, this novel hydrogel exhibited high sensitivity to Cr(VI), with a limit of detection of 11.2 mg/L and a wide linear range from 15 to 200 mg/L. Moreover, its mechanism for efficiently adsorbing and detecting Cr(VI) was analyzed. The results confirmed that the efficient adsorption and detection were due to these 3D porous structures generated by the lignin and cellulose nanofibers modified with CDs. The porous structures provided many active sites and ion transport channels, thereby improving the adsorption, and stabilized the fluorescence signal, thus enhancing the detection.
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Affiliation(s)
- Hanmeng Yuan
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Junwen Peng
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China; College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Tingting Ren
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qiuyan Luo
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yong Luo
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Ning Zhang
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yong Huang
- Joint International Research Laboratory of Biomass Energy and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xin Guo
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Yiqiang Wu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
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26
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Wu F, Chen L, Hu P, Wang Y, Deng J, Mi B. Industrial alkali lignin-derived biochar as highly efficient and low-cost adsorption material for Pb(II) from aquatic environment. BIORESOURCE TECHNOLOGY 2021; 322:124539. [PMID: 33340951 DOI: 10.1016/j.biortech.2020.124539] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 05/06/2023]
Abstract
Developing a cost-effective and high-efficiency biochar is critical in various environmental applications. Lignin-based materials are natural and abundant adsorbents to heavy metals benefited from their special polyphenol structure and physicochemical properties. In this study, adsorption capacities to Pb(II) by alkali lignin (AL) and its biochar derivative (ALB) were comparatively discussed, and the latter exhibited superior adsorption performance, with a maximum adsorption capacity almost twice that of the former, and a much faster absorption rate. The qm value of ALB was significantly superior to that of other reported biochar materials. Pb(II) was mainly adsorbed into ALB in three forms: mineral precipitation, ion exchange, and surface complexation, with complexation and mineral precipitation being the dominant mechanisms of adsorption. This study demonstrates that alkali-lignin derived biochar is a promising material for the remediation of polluted by Pb(II).
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Affiliation(s)
- Fangfang Wu
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
| | - Long Chen
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
| | - Peng Hu
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
| | - Yunxiao Wang
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
| | - Jie Deng
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
| | - Baobin Mi
- Research Institute of Vegetables, Hunan Academy of Agriculture Sciences, Changsha 410125, China.
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27
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He W, Yu Q, Wang N, Ouyang XK. Efficient adsorption of Cu(II) from aqueous solutions by acid-resistant and recyclable ethylenediamine tetraacetic acid-grafted polyvinyl alcohol/chitosan beads. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113856] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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28
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Li H, Wang Z, Liu X, Cui F, Chen C, Zhang Z, Li J, Song L, Bai R. Functionalised poplar catkins aerogels: Synthesis, characterisation and application to adsorb Cu(II) and Pb(II) from wastewater. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137805] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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29
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Zhang S, Liu C, Yuan Y, Fan M, Zhang D, Wang D, Xu Y. Selective, highly efficient extraction of Cr(III), Pb(II) and Fe(III) from complex water environment with a tea residue derived porous gel adsorbent. BIORESOURCE TECHNOLOGY 2020; 311:123520. [PMID: 32413638 DOI: 10.1016/j.biortech.2020.123520] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
A novel macroporous (~150 μm) double network hydrogel (TR/PAA) was prepared from tea residue and acrylic acid, and its performance was systematically evaluated. The static adsorption experiments showed that gel exhibited high selectivity and adsorption capacity, ultrafast kinetics (~10 min) for Cr(III), Pb(II) and Fe(III). The adsorption behavior showed heterogeneous and chemisorption process adsorption capacities of 206.19, 253.16, and 94.88 mg g-1 for Cr(III), Pb(II) and Fe(III), respectively. In pluralistic systems, TR/PAA showed the adsorption order of Fe(III) > Cr(III) > Pb(II). Mechanism studies confirm that nitrogen and oxygen-containing functional groups play a major role in the adsorption process. In the fixed-bed column experiments, the treatment volume of simulated wastewater reached 1400 bed volumes (BV) (21.6 L), producing only 7 BV (323 mL) eluent. This work provides a new avenue for the combination of TR/PAA reuse and heavy metal removal, which is expected to be applied in actual wastewater treatment.
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Affiliation(s)
- Shuaizhong Zhang
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, Shinan District, Qingdao, Shandong Province 266003, China
| | - Chengzhen Liu
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, Shinan District, Qingdao, Shandong Province 266003, China
| | - Yongkai Yuan
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, Shinan District, Qingdao, Shandong Province 266003, China
| | - Minghao Fan
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, Shinan District, Qingdao, Shandong Province 266003, China
| | - Dandan Zhang
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, Shinan District, Qingdao, Shandong Province 266003, China
| | - Dongfeng Wang
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, Shinan District, Qingdao, Shandong Province 266003, China
| | - Ying Xu
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, Shinan District, Qingdao, Shandong Province 266003, China.
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30
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Khan N, Chowdhary P, Ahmad A, Shekher Giri B, Chaturvedi P. Hydrothermal liquefaction of rice husk and cow dung in Mixed-Bed-Rotating Pyrolyzer and application of biochar for dye removal. BIORESOURCE TECHNOLOGY 2020; 309:123294. [PMID: 32283482 DOI: 10.1016/j.biortech.2020.123294] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
This work studied the hydrothermal liquefaction of rice husk (RH) and cow dung (CD) for the production of biochar from RH and CD and use of that biochar for the removal of dye from textile industry effluent. These biomasses were subjected to fast pyrolysis (500 °C), which yielded biochar (22.8 and 29.8%) and bio-oil (60.4 and 57.3%) from RH and CD, respectively. Biochar was characterized based on spectroscopy Fourier Transform Infrared Spectroscopy (FTIR) and morphological studies like Scanning Electron Microscope (SEM) and SEM-EDS. Further, bio-oil samples were characterized by GC-MS into saturated and polyunsaturated fatty acids, carboxylic acids, phenolics and aromatic hydrocarbons. The removal efficiencies of the Congo red dye from prepared biochar in a batch experiment were 66.8-96.9%(RH) and 68.9-98.8%(CD). The adsorption isotherms for Langmuir (R2 = 0.977 and 0.902) and Freundlich (R2 0.842 and 0.883) were calculated for RH and CD biochar, respectively.
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Affiliation(s)
- Nawaz Khan
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Pankaj Chowdhary
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Anees Ahmad
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Balendu Shekher Giri
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Preeti Chaturvedi
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, M.G. Marg, Lucknow 226001, Uttar Pradesh, India.
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31
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Ozay H, Gungor Z, Yilmaz B, Ilgin P, Ozay O. Dual use of colorimetric sensor and selective copper removal from aqueous media with novel p(HEMA-co-TACYC) hydrogels: Cyclen derivative as both monomer and crosslinker. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121848. [PMID: 31874756 DOI: 10.1016/j.jhazmat.2019.121848] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/06/2019] [Accepted: 12/07/2019] [Indexed: 06/10/2023]
Abstract
Within the scope of this study, p(2-hydroxyethyl methacrylate-co-tetraacrylic cyclen) (p(HEMA-co-TACYC)) hydrogels were synthesized for the first time in the literature using a tetraacrylic cyclen (TACYC) as both functional monomer and crosslinker. The hydrogels designed especially for Cu2+ ions showed colorimetric sensor behavior selective for Cu2+ ions in all aqueous media (deionized, tap, river and sea water) and in metal ion mixtures. The p(HEMA-co-TACYC) hydrogels forming a stable complex with Cu2+ ions simultaneously showed properties of being a good adsorbent material. The hydrogels have reuse capacity as both sensor and adsorbent material. Changing the amount of TACYC in the hydrogel structure changes the maximum adsorption capacity for Cu2+ ions. The Langmuir and Freundlich adsorption constants for Cu2+ ion adsorption of the hydrogels, acting as selective adsorbent in all aqueous media and metal ion mixtures, were determined.
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Affiliation(s)
- Hava Ozay
- Laboratory of Inorganic Materials, Department of Chemistry, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Canakkale, Turkey.
| | - Zeynep Gungor
- Graduate School of Natural and Applied Sciences, Department of Chemistry, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Betul Yilmaz
- Graduate School of Natural and Applied Sciences, Department of Bioengineering and Materials Engineering, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Pinar Ilgin
- Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School, Canakkale Onsekiz Mart University, Canakkale/Lapseki, Turkey
| | - Ozgur Ozay
- Laboratory of Inorganic Materials, Department of Chemistry, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Canakkale, Turkey; Department of Bioengineering, Faculty of Engineering, Canakkale Onsekiz Mart University, Canakkale, Turkey
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32
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Li B, Guo JZ, Liu JL, Fang L, Lv JQ, Lv K. Removal of aqueous-phase lead ions by dithiocarbamate-modified hydrochar. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 714:136897. [PMID: 32018999 DOI: 10.1016/j.scitotenv.2020.136897] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/22/2020] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
Hydrochar produced from agricultural and forestry wastes and its application into the environment are very attractive. Herein, a high-efficiency dithiocarbamate-modified hydrochar (DTHC) was prepared successfully and then applied to eliminate Pb(II) from aqueous solutions. DTHC was characterized by various techniques. It was found that dithiocarbamate and amine groups were successfully grafted onto the surface of hydrochar. The surface area of DTHC was 7.94 m2·g-1, which was four folds less than pristine hydrochar (31.60 m2·g-1), but its adsorption capacity obviously increased. Adsorption experiments showed that the Pb(II) adsorption process onto DTHC well accorded with pseudo-2nd-order kinetics and Langmuir isotherms. The highest Pb(II) uptake by DTHC at 293 K determined from the Langmuir model was 151.51 mg·g-1. Fourier transform infrared spectra and X-ray photoelectron spectroscopy verified that dithiocarbamate, carboxylate, amine and sulfonate groups all facilitated the Pb(II) adsorption. The adsorption mechanism was ascribed to the inner-sphere surface complexation of Pb(II) by these groups and to the ion exchange between Pb(II) and Na(I). Thus, DTHC is an effective adsorbent for Pb(II) removal from water.
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Affiliation(s)
- Bing Li
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-efficiency Utilization, Zhejiang A & F University, Hangzhou 311300, Zhejiang, PR China.
| | - Jian-Zhong Guo
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-efficiency Utilization, Zhejiang A & F University, Hangzhou 311300, Zhejiang, PR China
| | - Jia-Lin Liu
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-efficiency Utilization, Zhejiang A & F University, Hangzhou 311300, Zhejiang, PR China
| | - Ling Fang
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-efficiency Utilization, Zhejiang A & F University, Hangzhou 311300, Zhejiang, PR China
| | - Jian-Quan Lv
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-efficiency Utilization, Zhejiang A & F University, Hangzhou 311300, Zhejiang, PR China
| | - Kangle Lv
- College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, Hubei, PR China
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33
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Yang X, Li Z, Liu H, Ma L, Huang X, Cai Z, Xu X, Shang S, Song Z. Cellulose-based polymeric emulsifier stabilized poly(N-vinylcaprolactam) hydrogel with temperature and pH responsiveness. Int J Biol Macromol 2020; 143:190-199. [DOI: 10.1016/j.ijbiomac.2019.12.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/19/2019] [Accepted: 12/02/2019] [Indexed: 12/29/2022]
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34
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Wang F, Zhu Y, Xu H, Wang A. Preparation of Carboxymethyl Cellulose-Based Macroporous Adsorbent by Eco-Friendly Pickering-MIPEs Template for Fast Removal of Pb 2+ and Cd 2. Front Chem 2019; 7:603. [PMID: 31552221 PMCID: PMC6746836 DOI: 10.3389/fchem.2019.00603] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/16/2019] [Indexed: 12/14/2022] Open
Abstract
Recently, Pickering high internal phase emulsions (Pickering HIPEs) have been widely used to fabricate macroporous materials. However, the high usage of poisonous organic solvent in HIPEs not only greatly increases the cost but also is harmful to human health and environment, which leads to limited large-scale applications. In this study, we prepared a novel monolithic macroporous material of carboxymethyl cellulose-g-poly(acrylamide)/montmorillonite (CMC-g-PAM/MMT) by the free radical polymerization via oil-in-water Pickering medium internal phase emulsions (Pickering MIPEs), which used the non-toxic and eco-friendly flaxseed oil as continuous phase, MMT, and Tween-20 (T-20) as stabilizer. The pore structure of the resulting macroporous materials could be tuned easily by adjusting the content of MMT, co-surfactant T-20, and the oil phase volume fraction. The maximal adsorption capacities of the prepared macroporous material for Pb2+ and Cd2+ were 456.05 and 278.11 mg/g, respectively, and the adsorption equilibrium can be reached within 30 min. Otherwise, the macroporous monolith exhibited excellent reusability through five adsorption–desorption cycles. Thus, the eco-friendly Pickering-MIPEs is a potential alternative method to be used to fabricate multi-porous adsorption materials for environmental applications.
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Affiliation(s)
- Feng Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China.,College of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou, China
| | - Yongfeng Zhu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Hui Xu
- Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
| | - Aiqin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
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