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Zhao Y, Zhang Q, Gong Z, Zhang W, Ren Y, Li Q, Lu H, Liao Q, Chen Z, Tang J. Zanthoxylum bungeanum Waste-Derived High-Nitrogen Self-Doped Porous Carbons as Efficient Adsorbents for Methylene Blue. Molecules 2024; 29:1809. [PMID: 38675629 PMCID: PMC11052492 DOI: 10.3390/molecules29081809] [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: 03/28/2024] [Revised: 04/13/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024] Open
Abstract
In this study, we prepared high-nitrogen self-doped porous carbons (NPC1 and NPC2) derived from the pruned branches and seeds of Zanthoxylum bungeanum using a simple one-step method. NPC1 and NPC2 exhibited elevated nitrogen contents of 3.56% and 4.22%, respectively, along with rich porous structures, high specific surface areas of 1492.9 and 1712.7 m2 g-1 and abundant surface groups. Notably, both NPC1 and NPC2 demonstrated remarkable adsorption abilities for the pollutant methylene blue (MB), with maximum monolayer adsorption capacities of 568.18 and 581.40 mg g-1, respectively. The adsorption kinetics followed the pseudo-second-order kinetics and the adsorption isotherms conformed to the Langmuir isotherm model. The adsorption mechanism primarily relied on the hierarchical pore structures of NPC1 and NPC2 and their diverse strong interactions with MB molecules. This study offers a new approach for the cost-effective design of nitrogen self-doped porous carbons, facilitating the efficient removal of MB from wastewater.
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Affiliation(s)
- Yuhong Zhao
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404199, China
| | - Qi Zhang
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
| | - Zhuhua Gong
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
| | - Wenlin Zhang
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
| | - Yun Ren
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
| | - Qiang Li
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
| | - Hongjia Lu
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
| | - Qinhong Liao
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
| | - Zexiong Chen
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
| | - Jianmin Tang
- Chongqing Key Laboratory for Germplasm Innovation of Special Aromatic Spice Plants, Institute of Special Plants, College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160, China; (Y.Z.); (Q.Z.); (Z.G.); (Y.R.); (Q.L.); (H.L.); (Q.L.); (Z.C.); (J.T.)
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Wu L, Qi S, Zhang T, Jin Y, Xiao H. One-step carbonization/activation synthesis of chitosan-based porous sheet-like carbon and studies of adsorptive removal for Rhodamine B. Carbohydr Polym 2024; 330:121832. [PMID: 38368087 DOI: 10.1016/j.carbpol.2024.121832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/28/2023] [Accepted: 01/13/2024] [Indexed: 02/19/2024]
Abstract
In this work, new N, O-codoped chitosan-derived carbon adsorbents (CKC-x, x refer to the calcination temperature) were synthesized over a simple process of chitosan-KOH aerogel production and simultaneous carbonization/activation of the aerogel. CKC-700 was characterized by sheet-like morphology (even containing a portion of carbon nano-sheet of 3 nm thickness), high porosity and specific surface area (1702.1 m2/g), and pyridinic/pyrrolic/graphitic N groups. The simultaneous carbonization/activation of chitosan-KOH aerogel prepared by top-down coagulation of chitosan aqueous solution by KOH aqueous solution rendered these beneficial characteristics. CKC-700 exhibited a superior adsorption capacity for Rhodamine B (RhB) to other chitosan-derived carbon adsorbents, and the maximum adsorption capacity for RhB of 594 mg/g was achieved at 55 °C. CKC-700 also possessed reasonable reusability for the removal of RhB, and the removal efficiency was still above 95 % in the fifth cycle. The effects of adsorption temperature and time, adsorbent dose, organic dye concentration, and solution pH on the adsorption capacity of CKC-700 were studied. Moreover, the adsorption isotherm, kinetics, thermodynamics, and the adsorption mechanism of RhB on CKC-700 were discussed. In addition, CKC-700 also showed favorable adsorption performance for methylene blue (441 mg/g), methyl orange (457 mg/g), and congo red (500 mg/g) at around 25 °C.
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Affiliation(s)
- Ling Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Shuang Qi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Tingwei Zhang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Yongcan Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
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Koshy J, Sangeetha D. Recent progress and treatment strategy of pectin polysaccharide based tissue engineering scaffolds in cancer therapy, wound healing and cartilage regeneration. Int J Biol Macromol 2024; 257:128594. [PMID: 38056744 DOI: 10.1016/j.ijbiomac.2023.128594] [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: 08/15/2023] [Revised: 11/12/2023] [Accepted: 12/02/2023] [Indexed: 12/08/2023]
Abstract
Natural polymers and its mixtures in the form of films, sponges and hydrogels are playing a major role in tissue engineering and regenerative medicine. Hydrogels have been extensively investigated as standalone materials for drug delivery purposes as they enable effective encapsulation and sustained release of drugs. Biopolymers are widely utilised in the fabrication of hydrogels due to their safety, biocompatibility, low toxicity, and regulated breakdown by human enzymes. Among all the biopolymers, polysaccharide-based polymer is well suited to overcome the limitations of traditional wound dressing materials. Pectin is a polysaccharide which can be extracted from different plant sources and is used in various pharmaceutical and biomedical applications including cartilage regeneration. Pectin itself cannot be employed as scaffolds for tissue engineering since it decomposes quickly. This article discusses recent research and developments on pectin polysaccharide, including its types, origins, applications, and potential demands for use in AI-mediated scaffolds. It also covers the materials-design process, strategy for implementation to material selection and fabrication methods for evaluation. Finally, we discuss unmet requirements and current obstacles in the development of optimal materials for wound healing and bone-tissue regeneration, as well as emerging strategies in the field.
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Affiliation(s)
- Jijo Koshy
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - D Sangeetha
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
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Zhang W, Zhao Y, Liao Q, Li Z, Jue D, Tang J. Sweet-Potato-Vine-Based High-Performance Porous Carbon for Methylene Blue Adsorption. Molecules 2023; 28:819. [PMID: 36677876 PMCID: PMC9867065 DOI: 10.3390/molecules28020819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/08/2023] [Accepted: 01/12/2023] [Indexed: 01/14/2023] Open
Abstract
In this study, sweet-potato-vine-based porous carbon (SPVPC) was prepared using zinc chloride as an activating and pore-forming agent. The optimised SPVPC exhibited abundant porous structures with a high specific surface area of 1397.8 m2 g-1. Moreover, SPVPC exhibited excellent adsorption characteristics for removing methylene blue (MB) from aqueous solutions. The maximum adsorption capacity for MB reached 653.6 mg g-1, and the reusability was satisfactory. The adsorption kinetics and isotherm were in good agreement with the pseudo-second-order kinetics and Langmuir models, respectively. The adsorption mechanism was summarised as the synergistic effects of the hierarchically porous structures in SPVPC and various interactions between SPVPC and MB. Considering its low cost and excellent adsorption performance, the prepared porous carbon is a promising adsorbent candidate for dye wastewater treatment.
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Affiliation(s)
- Wenlin Zhang
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
- College of Food Science, Southwest University, Beibei, Chongqing 400716, China
| | - Yuhong Zhao
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
- College of Biology and Food Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404199, China
| | - Qinhong Liao
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
| | - Zhexin Li
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
| | - Dengwei Jue
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
| | - Jianmin Tang
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
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Facile Preparation of Porous Carbon Derived from Pomelo Peel for Efficient Adsorption of Methylene Blue. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103096. [PMID: 35630572 PMCID: PMC9144290 DOI: 10.3390/molecules27103096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/07/2022] [Accepted: 05/09/2022] [Indexed: 11/17/2022]
Abstract
Pomelo peel waste-derived porous carbon (PPPC) was prepared by a facile one-step ZnCl2 activation method. The preparation parameters of PPPC were the mass ratio of ZnCl2 to pomelo peel of 2:1, carbonization temperature of 500 °C, and carbonization time of 1 h. This obtained PPPC possessed abundant macro-,meso-, and micro-porous structures, and a large specific surface area of 939.4 m2 g-1. Surprisingly, it had excellent adsorption ability for methylene blue, including a high adsorption capacity of 602.4 mg g-1 and good reusability. The adsorption isotherm and kinetic fitted with Langmuir and pseudo-second order kinetic models. This work provides a novel strategy for pomelo peel waste utilization and a potential adsorbent for treating dye wastewater.
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Hamad HN, Idrus S. Recent Developments in the Application of Bio-Waste-Derived Adsorbents for the Removal of Methylene Blue from Wastewater: A Review. Polymers (Basel) 2022; 14:783. [PMID: 35215695 PMCID: PMC8876036 DOI: 10.3390/polym14040783] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/05/2022] [Accepted: 02/10/2022] [Indexed: 02/04/2023] Open
Abstract
Over the last few years, various industries have released wastewater containing high concentrations of dyes straight into the ecological system, which has become a major environmental problem (i.e., soil, groundwater, surface water pollution, etc.). The rapid growth of textile industries has created an alarming situation in which further deterioration to the environment has been caused due to substances being left in treated wastewater, including dyes. The application of activated carbon has recently been demonstrated to be a highly efficient technology in terms of removing methylene blue (MB) from wastewater. Agricultural waste, as well as animal-based and wood products, are excellent sources of bio-waste for MB remediation since they are extremely efficient, have high sorption capacities, and are renewable sources. Despite the fact that commercial activated carbon is a favored adsorbent for dye elimination, its extensive application is restricted because of its comparatively high cost, which has prompted researchers to investigate alternative sources of adsorbents that are non-conventional and more economical. The goal of this review article was to critically evaluate the accessible information on the characteristics of bio-waste-derived adsorbents for MB's removal, as well as related parameters influencing the performance of this process. The review also highlighted the processing methods developed in previous studies. Regeneration processes, economic challenges, and the valorization of post-sorption materials were also discussed. This review is beneficial in terms of understanding recent advances in the status of biowaste-derived adsorbents, highlighting the accelerating need for the development of low-cost adsorbents and functioning as a precursor for large-scale system optimization.
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Affiliation(s)
| | - Syazwani Idrus
- Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia;
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Vafaeinia M, Khosrowshahi MS, Mashhadimoslem H, Motejadded Emrooz HB, Ghaemi A. Oxygen and nitrogen enriched pectin-derived micro-meso porous carbon for CO 2 uptake. RSC Adv 2021; 12:546-560. [PMID: 35424508 PMCID: PMC8694228 DOI: 10.1039/d1ra08407k] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/14/2021] [Indexed: 12/21/2022] Open
Abstract
Oxygen and nitrogen enriched micro-meso porous carbon powders have been prepared from pectin and melamine as oxygen and nitrogen containing organic precursors, respectively. The synthesis process has been performed following a solvothermal approach in an alkaline solution during which Pluronic F127 was added to the solution as the soft template. Following the solvothermal treatment, the carbonization process has been performed at 700, 850 and 950 °C. The synthesized porous carbons have been characterized by X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), nitrogen adsorption-desorption isotherms and Fourier transform infrared spectroscopy (FTIR). The surface area of 499.5 m2 g-1, total pore volume of 0.35 cm3 g-1, and a high nitrogen and oxygen content of 9.3 and 29.1 wt% are displayed for the fine sample. The optimal porous carbon had CO2 adsorption of up to 3.1 mmol g-1 at 273 K at 1 bar owing to abundant basic nitrogen-containing functionalities and the valuable micro-meso porous structure. Despite the absence of any reagent and also having a relatively moderate specific surface area, compared to similar materials, a very high ratio of adsorption capacity to specific surface area (6.2 μmol m-2) was observed. The Elovich kinetic model was found to be the best and the physisorption process was reported.
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Affiliation(s)
- Milad Vafaeinia
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST) Narmak 16846 Tehran Iran
| | - Mobin Safarzadeh Khosrowshahi
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST) Narmak 16846 Tehran Iran
| | - Hossein Mashhadimoslem
- School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST) Narmak 16846 Tehran Iran
| | - Hosein Banna Motejadded Emrooz
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST) Narmak 16846 Tehran Iran
| | - Ahad Ghaemi
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST) Narmak 16846 Tehran Iran
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Physicochemical and Optical Characterization of Citrus aurantium Derived Biochar for Solar Absorber Applications. MATERIALS 2021; 14:ma14164756. [PMID: 34443277 PMCID: PMC8400949 DOI: 10.3390/ma14164756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/03/2021] [Accepted: 08/18/2021] [Indexed: 11/30/2022]
Abstract
Agro-industrial waste valorization is an attractive approach that offers new alternatives to deal with shrinkage and residue problems. One of these approaches is the synthesis of advanced carbon materials. Current research has shown that citrus waste, mainly orange peel, can be a precursor for the synthesis of high-quality carbon materials for chemical adsorption and energy storage applications. A recent approach to the utilization of advanced carbon materials based on lignocellulosic biomass is their use in solar absorber coatings for solar-thermal applications. This study focused on the production of biochar from Citrus aurantium orange peel by a pyrolysis process at different temperatures. Biochars were characterized by SEM, elemental analysis, TGA-DSC, FTIR, DRX, Raman, and XPS spectroscopies. Optical properties such as diffuse reflectance in the UV−VIS−NIR region was also determined. Physical-chemical characterization revealed that the pyrolysis temperature had a negative effect in yield of biochars, whereas biochars with a higher carbon content, aromaticity, thermal stability, and structural order were produced as the temperature increased. Diffuse reflectance measurements revealed that it is possible to reduce the reflectance of the material by controlling its pyrolysis temperature, producing a material with physicochemical and optical properties that could be attractive for use as a pigment in solar absorber coatings.
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Bayantong ARB, Shih YJ, Ong DC, Abarca RRM, Dong CD, de Luna MDG. Adsorptive removal of dye in wastewater by metal ferrite-enabled graphene oxide nanocomposites. CHEMOSPHERE 2021; 274:129518. [PMID: 33540313 DOI: 10.1016/j.chemosphere.2020.129518] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 12/08/2020] [Accepted: 12/29/2020] [Indexed: 05/19/2023]
Abstract
Dyes are hazardous compounds commonly found in industrial wastewaters. Efficient and inexpensive removal of dye molecules from the water matrix has been demonstrated by adsorption processes. Magnetic nano-adsorbents, such as metal ferrites, can be efficiently recovered from the reaction mixture after treating the pollutant. Herein, MFe2O4@GO (M = Cu, Co or Ni) was synthesized via solution combustion method for the removal of dye molecules from aqueous solutions. The characteristics of the MFe2O4@GO, including surface area and pore diameter, surface functional groups, and elemental composition, were examined. Methylene blue was used as representative dye pollutant. Batch adsorption results conformed to the Langmuir isotherm. Maximum adsorption capacities of the MFe2O4@GO (M = Cu, Co or Ni) were 25.81, 50.15 and 76.34 mg g-1, respectively. Kinetics of methylene blue adsorption fitted the pseudo-second-order model. Overall, NiFe2O4@GO exhibited the highest adsorbent performance among the graphene-metal ferrites investigated, primarily because of its high specific surface area and presence of mesopores.
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Affiliation(s)
- Allen Rhay B Bayantong
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines Diliman, Quezon City, 1101, Philippines
| | - Yu-Jen Shih
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung City, 81157, Taiwan.
| | - Dennis C Ong
- School of Technology, University of the Philippines Visayas, Miagao, Iloilo, 5023, Philippines
| | - Ralf Ruffel M Abarca
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines Diliman, Quezon City, 1101, Philippines
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Mark Daniel G de Luna
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines Diliman, Quezon City, 1101, Philippines; Department of Chemical Engineering, University of the Philippines Diliman, Quezon City, 1101, Philippines.
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Alvarado N, Abarca RL, Urdaneta J, Romero J, Galotto MJ, Guarda A. Cassava starch: structural modification for development of a bio-adsorber for aqueous pollutants. Characterization and adsorption studies on methylene blue. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03149-9] [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]
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Li L, Wu M, Song C, Liu L, Gong W, Ding Y, Yao J. Efficient removal of cationic dyes via activated carbon with ultrahigh specific surface derived from vinasse wastes. BIORESOURCE TECHNOLOGY 2021; 322:124540. [PMID: 33348115 DOI: 10.1016/j.biortech.2020.124540] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 05/13/2023]
Abstract
In this work, a simple and feasible approach for converting waste vinasse generated from the alcohol industries into high value-added activated carbon (AC) was proposed. The obtained AC possessed abundant micropores with micropore volume of 0.9613 cm3/g and ultrahigh specific surface areas (2015 m2/g), indicating prominent adsorption capacity. The adsorption ability of AC to cationic methylene blue (MB) was investigated systematically. The resultant AC exhibited superior adsorption ability to MB with a maximum amount of 2251 mg/g, derived from its excellent pore textural features and abundant surface O-containing functional groups. Moreover, AC showed excellent removal efficiency for treating industrial polyacrylonitrile wastewater with 99% removal within 60 min. Our results provide great inspirations in solid waste treatment and their high value-added transformation, meanwhile exploit a promising application of AC for practical wastewater purification.
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Affiliation(s)
- Lindong Li
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China
| | - Mingbang Wu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China
| | - Chuhan Song
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China
| | - Lin Liu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China.
| | - Wenli Gong
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China
| | - Yanhong Ding
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China
| | - Juming Yao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China
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Removal of Acid Red 88 Using Activated Carbon Produced from Pomelo Peels by KOH Activation: Orthogonal Experiment, Isotherm, and Kinetic Studies. J CHEM-NY 2021. [DOI: 10.1155/2021/6617934] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Activated carbon (PPAC) from pomelo peels was prepared by carbonization and KOH activation. The performance of PPAC was assessed by removing acid red 88 (AR88) in aqueous solution. The most suitable activation processes were found by orthogonal experiments, aimed to achieve the maximum of removal capacity of AR88. Moreover, the possible mechanisms of adsorption were studied through the results of characterization, isotherm fitting, and kinetics simulation. Results showed the preparation parameter that mattered the most to AR88 removal efficiency was the activation temperature of PPAC, followed by impregnation ratio and activation time. The optimal preparation conditions of PPAC were at activation temperature 800°C, activation time 90 min, and impregnation ratio 2.5 : 1. The characterization results showed optimal PPAC had a microporous and amorphous carbon structure whose BET specific area and total pore volume were 2504 m2/g and 1.185 cm3/g, respectively. The isotherm fitting demonstrated that the sorption process followed the Langmuir model, and theoretical maximal sorption value was 1486 mg/g. The kinetics simulation showed that the pseudo-second-order model described the sorption behavior better, suggesting chemisorption seemed to be the rate-limiting step in the adsorption process. This work presented that PPAC was a promising and efficient adsorbent for AR88 from water.
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Li Z, Chen X, Qiu L, Wang Y, Zhou Z. Nano Porous Carbon Derived from Citrus Pomace for the Separation and Purification of PMFs in Citrus Processing Wastes. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:nano10101914. [PMID: 32992899 PMCID: PMC7600721 DOI: 10.3390/nano10101914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/17/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
The by-product of citrus juice processing is a huge source of bioactive compounds, especially polymethoxyflavones (PMFs) and fibers. In this study, a method for the separation and purification of PMFs from citrus pomace was established based on citrus nanoporous carbon (CNPC) enrichment. Different biomass porous carbons were synthesized, their adsorption/desorption characteristics were evaluated, and the CNPCs from the peel of Citrus tangerina Tanaka were found to be best for the enrichment of PMFs from the crude extracts of citrus pomace. Using this method, six PMF compounds including low-abundant PMFs in citrus fruits such as 5,6,7,4'-tetramethoxyflavone and 5-hydroxy-6,7,8,3',4'-pentamethoxyflavone can be simultaneously obtained, and the purities of these compounds were all higher than 95%, with the highest purity of nobiletin reaching 99.96%. Therefore, CNPCs have a great potential for the separation and purification of PMFs in citrus processing wastes, potentially improving the added value of citrus wastes. We also provide a method reference for disposing of citrus pomace in the future.
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Affiliation(s)
- Zhenqing Li
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
| | - Xin Chen
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
| | - Lulu Qiu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
| | - Yu Wang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
| | - Zhiqin Zhou
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; (Z.L.); (X.C.); (L.Q.); (Y.W.)
- The Southwest Institute of Fruits Nutrition, Banan District, Chongqing 400054, China
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, Chongqing 400715, China
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Sun Z, Liu Y, Srinivasakannan C. Green Preparation and Environmental Application of Porous Carbon Microspheres. ChemistrySelect 2020. [DOI: 10.1002/slct.202002034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhiwei Sun
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of MaterialsMinistry of EducationShandong University Jinan 250061 China
| | - Yanhua Liu
- School of Foreign LanguagesWeifang University Weifang 261061 China
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15
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A porous-cross linked enzyme aggregates of maltogenic amylase from Bacillus lehensis G1: Robust biocatalyst with improved stability and substrate diffusion. Int J Biol Macromol 2020; 148:1222-1231. [DOI: 10.1016/j.ijbiomac.2019.10.101] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 10/09/2019] [Accepted: 10/10/2019] [Indexed: 11/18/2022]
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16
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Rashid J, Tehreem F, Rehman A, Kumar R. Synthesis using natural functionalization of activated carbon from pumpkin peels for decolourization of aqueous methylene blue. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 671:369-376. [PMID: 30933793 DOI: 10.1016/j.scitotenv.2019.03.363] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/21/2019] [Accepted: 03/22/2019] [Indexed: 06/09/2023]
Abstract
In this study, a novel approach was applied for modification and functionalization of pumpkin peels (PP) derived carbon using natural beetroot extract. PP waste biomass was carbonized at 250 (AC250), 350 (AC350), 450 (AC450) and 550 °C (AC550) and used as adsorbent for the scavenging of methylene blue (MB). The adsorption results revealed that AC250 was the most efficient material. Thereafter, AC250 was further modified with different acids and natural beetroot extract to enhance the adsorption efficiency for MB removal. Modified and functionalized carbon materials were characterized to determine the functional groups, crystalline nature and surface morphology of adsorbents using Fourier Transformed Infra-Red spectroscopy, X-ray Diffraction and Scanning Electron Microscopy. The pore size distribution measurements by non-local density functional theory (NLDFT) revealed the presence of large number of mesopores in the beetroot activated carbon (BAC) with the BET specific surface area of 3.6 m2.g-1. The adsorption studies exhibited the highest adsorption (198.15 mg.g-1) for MB using 0.5 g.L-1 of adsorbent mass at 200 mg.L-1 MB concentration and 50 °C within 180 min. Reaction kinetics analysis of the experimental data revealed that adsorption followed pseudo second order kinetic model where BAC250 showed highest reaction rate constant value of 0.0095 and correlation coefficient value of 0.9992. The equilibrium data were tested by using Freundlich and Langmuir isotherm models. For both isotherms, the characteristic parameters were determined and the adsorption behaviour was found to fit well with the Langmuir isotherm model indicating monolayer adsorption of MB.
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Affiliation(s)
- Jamshaid Rashid
- Department of Environmental Science, Faculty of Biological Sciences, Quaid-i-Azam University, 45320 Islamabad, Pakistan.
| | - Fakhra Tehreem
- Department of Environmental Science, Faculty of Biological Sciences, Quaid-i-Azam University, 45320 Islamabad, Pakistan
| | - Adeela Rehman
- Department of Chemistry, Inha University, South Korea
| | - Rajeev Kumar
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Zhang W, Li H, Tang J, Lu H, Liu Y. Ginger Straw Waste-Derived Porous Carbons as Effective Adsorbents toward Methylene Blue. Molecules 2019; 24:E469. [PMID: 30696112 PMCID: PMC6384592 DOI: 10.3390/molecules24030469] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 01/20/2019] [Accepted: 01/24/2019] [Indexed: 11/24/2022] Open
Abstract
In this work, ginger straw waste-derived porous carbons, with high adsorption capacity, high adsorption rate, and good reusability for removing the toxic dye of methylene blue from wastewater, were prepared by a facile method under oxygen-limiting conditions. This study opens a new approach for the utilization of ginger straw waste, and the porous materials can be employed as great potential adsorbents for treating dye wastewater.
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Affiliation(s)
- Wenlin Zhang
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Center of Special Plant Industry in Chongqing, Institute of Special Plants, College of Forestry & Life Science, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Huihe Li
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Center of Special Plant Industry in Chongqing, Institute of Special Plants, College of Forestry & Life Science, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Jianmin Tang
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Center of Special Plant Industry in Chongqing, Institute of Special Plants, College of Forestry & Life Science, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Hongjia Lu
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Center of Special Plant Industry in Chongqing, Institute of Special Plants, College of Forestry & Life Science, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Yiqing Liu
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Center of Special Plant Industry in Chongqing, Institute of Special Plants, College of Forestry & Life Science, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
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Yu Y, Wan Y, Shang H, Wang B, Zhang P, Feng Y. Corncob-to-xylose residue (CCXR) derived porous biochar as an excellent adsorbent to remove organic dyes from wastewater. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6575] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yanling Yu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin China 150001
| | - Yuan Wan
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin China 150001
| | - Hongru Shang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin China 150001
| | - Bin Wang
- School of Chemistry and Chemical Engineering; Xiamen University; Xiamen China 361005
| | - Peng Zhang
- State Key Laboratory of Urban Water Resource and Environment; Harbin Institute of Technology; Harbin China 150090
| | - Yujie Feng
- State Key Laboratory of Urban Water Resource and Environment; Harbin Institute of Technology; Harbin China 150090
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Carbon-Based Fe₃O₄ Nanocomposites Derived from Waste Pomelo Peels for Magnetic Solid-Phase Extraction of 11 Triazole Fungicides in Fruit Samples. NANOMATERIALS 2018; 8:nano8050302. [PMID: 29734765 PMCID: PMC5977316 DOI: 10.3390/nano8050302] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/26/2018] [Accepted: 05/01/2018] [Indexed: 12/30/2022]
Abstract
Carbon-based Fe3O4 nanocomposites (C/Fe3O4 NCs) were synthesized by a simple one-step hydrothermal method using waste pomelo peels as the carbon precursors. The characterization results showed that they had good structures and physicochemical properties. The prepared C/Fe3O4 NCs could be applied as excellent and recyclable adsorbents for magnetic solid phase extraction (MSPE) of 11 triazole fungicides in fruit samples. In the MSPE procedure, several parameters including the amount of adsorbents, extraction time, the type and volume of desorption solvent, and desorption time were optimized in detail. Under the optimized conditions, the good linearity (R2 > 0.9916), the limits of detection (LOD), and quantification (LOQ) were obtained in the range of 1–100, 0.12–0.55, and 0.39–1.85 μg/kg for 11 pesticides, respectively. Lastly, the proposed MSPE method was successfully applied to analyze triazole fungicides in real apple, pear, orange, peach, and banana samples with recoveries in the range of 82.1% to 109.9% and relative standard deviations (RSDs) below 8.4%. Therefore, the C/Fe3O4 NCs based MSPE method has a great potential for isolating and pre-concentrating trace levels of triazole fungicides in fruits.
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Sumalinog DAG, Capareda SC, de Luna MDG. Evaluation of the effectiveness and mechanisms of acetaminophen and methylene blue dye adsorption on activated biochar derived from municipal solid wastes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 210:255-262. [PMID: 29367138 DOI: 10.1016/j.jenvman.2018.01.010] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 12/26/2017] [Accepted: 01/04/2018] [Indexed: 05/27/2023]
Abstract
The adsorption potential and governing mechanisms of emerging contaminants, i.e. acetaminophen or acetyl-para-aminophenol (APAP) and methylene blue (MB) dye, on activated carbon derived from municipal solid waste were investigated in this work. Results showed that MB adsorption was significantly more effective, with a maximum removal of 99.9%, than APAP adsorption (%Rmax = 63.7%). MB adsorption was found to be unaffected by pH change, while the adsorption capacity of APAP drastically dropped by about 89% when the pH was adjusted from pH 2 to 12. Surface reactions during APAP adsorption was dominated by both physical and chemical interactions, with the kinetic data showing good fit in both pseudo-first order (R2 = 0.986-0.997) and pseudo-second order (R2>0.998) models. On the other hand, MB adsorption was best described by the pseudo-second order model, with R2>0.981, denoting that chemisorption controlled the process. Electrostatic attractions and chemical reactions with oxygenated surface functional groups (i.e., -OH and -COOH) govern the adsorption of APAP and MB on the activated biochar. Thermodynamic study showed that APAP and MB adsorption were endothermic with positive ΔH° values of 16.5 and 74.7 kJ mol-1, respectively. Negative ΔG° values obtained for APAP (-3.7 to -5.1 kJ mol-1) and MB (-11.4 to -17.1 kJ mol-1) implied that the adsorption onto the activated biochar was spontaneous and feasible. Overall, the study demonstrates the effectiveness of activated biochar from municipal solid wastes as alternative adsorbent for the removal of acetaminophen and methylene blue dye from contaminated waters.
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Affiliation(s)
- Divine Angela G Sumalinog
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines Diliman, 1101, Quezon City, Philippines; Bio-Energy Testing and Analysis Laboratory, Biological and Agricultural Engineering Department, Texas A&M University, College Station, 77840, TX, USA
| | - Sergio C Capareda
- Bio-Energy Testing and Analysis Laboratory, Biological and Agricultural Engineering Department, Texas A&M University, College Station, 77840, TX, USA.
| | - Mark Daniel G de Luna
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines Diliman, 1101, Quezon City, Philippines; Department of Chemical Engineering, University of the Philippines Diliman, 1101, Quezon City, Philippines.
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Preparation and performance study of MgFe2O4/metal–organic framework composite for rapid removal of organic dyes from water. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2017.09.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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22
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The combination of mussel-inspired chemistry and surface-initiated redox polymerization for surface modification of silica microspheres and their environmental adsorption applications. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.101] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Wi S, Chang SJ, Jeong SG, Lee J, Kim T, Park KW, Lee DR, Kim S. Evaluation of Toluene Adsorption Performance of Mortar Adhesives Using Porous Carbon Material as Adsorbent. MATERIALS 2017; 10:ma10080853. [PMID: 28773214 PMCID: PMC5578219 DOI: 10.3390/ma10080853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 07/20/2017] [Accepted: 07/20/2017] [Indexed: 11/16/2022]
Abstract
Porous carbon materials are advantageous in adsorbing pollutants due to their wide range of specific surface areas, pore diameter, and pore volume. Among the porous carbon materials in the current study, expanded graphite, xGnP, xGnP C-300, xGnP C-500, and xGnP C-750 were prepared as adsorbent materials. Brunauer–Emmett–Teller (BET) analysis was conducted to select the adsorbent material through the analysis of the specific surface area, pore size, and pore volume of the prepared porous carbon materials. Morphological analysis using SEM was also performed. The xGnP C-500 as adsorbent material was applied to a mortar adhesive that is widely used in the installation of interior building materials. The toluene adsorption performances of the specimens were evaluated using 20 L small chamber. Furthermore, the performance of the mortar adhesive, as indicated by the shear bond strength, length change rate, and water retention rate, was analyzed according to the required test method specified in the Korean standards. It was confirmed that for the mortar adhesives prepared using the xGnP C-500 as adsorbent material, the toluene adsorption performance was excellent and satisfied the required physical properties.
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Affiliation(s)
- Seunghwan Wi
- Building Environment & Materials Lab, School of Architecture, Soongsil University, Seoul 06978, Korea.
| | - Seong Jin Chang
- Building Environment & Materials Lab, School of Architecture, Soongsil University, Seoul 06978, Korea.
| | - Su-Gwang Jeong
- Building Environment & Materials Lab, School of Architecture, Soongsil University, Seoul 06978, Korea.
| | - Jongki Lee
- Building Environment & Materials Lab, School of Architecture, Soongsil University, Seoul 06978, Korea.
| | - Taeyeon Kim
- Department of Architectural Engineering, Yonsei University, Seoul 03722, Korea.
| | - Kyung-Won Park
- Department of Chemical Engineering, Soongsil University, Seoul 06978, Korea.
| | - Dong Ryeol Lee
- Department of Physics, Soongsil University, Seoul 06978, Korea.
| | - Sumin Kim
- Building Environment & Materials Lab, School of Architecture, Soongsil University, Seoul 06978, Korea.
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Zhang W, Zhou Z. Citrus Pectin-Derived Carbon Microspheres with Superior Adsorption Ability for Methylene Blue. NANOMATERIALS 2017; 7:nano7070161. [PMID: 28665303 PMCID: PMC5535227 DOI: 10.3390/nano7070161] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 06/23/2017] [Accepted: 06/26/2017] [Indexed: 11/26/2022]
Abstract
In this study, citrus pectin-derived, green, and tunable carbon microspheres with superior adsorption capacity and high adsorption rate, as well as good reusability toward methylene blue adsorption, were prepared by a facile hydrothermal method without any hazardous chemicals. The materials hold great potential for the treatment of methylene blue wastewater.
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Affiliation(s)
- Wenlin Zhang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China.
- Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan 402160, China.
| | - Zhiqin Zhou
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China.
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, Chongqing 400715, China.
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