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Microfluidic synthesis of renewable biosorbent with highly comprehensive adsorption performance for copper (II)

Yong Zhu, Zhishan Bai, Bingjie Wang, Linlin Zhai, Wenqiang Luo

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 238-251 doi: 10.1007/s11705-017-1627-1

Abstract: A microsphere biosorbent with uniform size (CV= 1.52%), controllable morphology and component, and highmechanical strength was synthesized from chitosan by microfluidic technology combining with chemicalThis chitosan microsphere (CS-MS) was prepared with a two-step solidification process, which was acquired

Keywords： chitosan microsphere     microfluidic technology     adsorption     copper (II)    

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Preparation and application of magnetic microsphere carriers

ZHANG Bo, XING Jianmin, LIU Huizhou

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 96-101 doi: 10.1007/s11705-007-0019-3

Abstract: Magnetic microsphere carriers have received considerable attention, primarily because of their wide applications

Keywords： microsphere     biomedicine     DNA     purification     preparation    

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Removal of copper by modified chitosan adsorptive membrane

Xiaoshuai LIU, Zihong CHENG, Wei MA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 102-106 doi: 10.1007/s11705-009-0123-7

Abstract: In this study, a novel adsorptive membrane was prepared from chitosan as the functional polymer and someThe modified chitosan membrane was characterized by FTIR and its Water Swelling Ratio (WSR).

Keywords： chitosan     adsorptive membrane     copper removal     environmental engineering     heavy metal     isotherm model    

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Dialdehyde cellulose nanocrystal cross-linked chitosan foam with high adsorption capacity for removal

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 853-866 doi: 10.1007/s11705-022-2256-x

Abstract: Subsequently, the cationic dialdehyde cellulose nanocrystal cross-linked chitosan nanocomposite foamUnder the optimal ratio of the cationic dialdehyde cellulose nanocrystal/chitosan (w/w) of 12/100, the

Keywords： chitosan foam     cellulose nanocrystals     acid red 134     adsorption    

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Correction to: Highly degradable chitosan-montmorillonite (MMT) nanocomposite hydrogel for controlled

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1704-2

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Removal of clofibric acid from aqueous solution by polyethylenimine-modified chitosan beads

Yao NIE,Shubo DENG,Bin WANG,Jun HUANG,Gang YU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 675-682 doi: 10.1007/s11783-013-0622-0

Abstract: Polyethylenimine (PEI)-modified chitosan was prepared and used to remove clofibric acid (CA) from aqueousPEI was chemically grafted on the porous chitosan through a crosslinking reaction, and the effects ofThe PEI-modified chitosan had fast adsorption for CA within the initial 5 h, while this adsorbent exhibitedThe CA adsorption on the PEI-modified chitosan was pH-dependent, and the maximum adsorption was achievedThe PEI-modified chitosan has a potential application for the removal of some anionic micropollutants

Keywords： clofibric acid     PEI-modified chitosan     adsorption capacity     adsorption mechanism     electrostatic interaction    

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An antifouling catechol/chitosan-modified polyvinylidene fluoride membrane for sustainable oil-in-water

Shanshan Zhao, Zhu Tao, Liwei Chen, Muqiao Han, Bin Zhao, Xuelin Tian, Liang Wang, Fangang Meng

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1355-5

Abstract: Abstract • Underwater superoleophobic membrane was fabricated by deposition of catechol/chitosan. •microfiltration membrane via one-step oxidant-induced ultrafast co-deposition of naturally available catechol/chitosanas-prepared membrane retained the original pore structure due to the ultrathin and uniform catechol/chitosanMoreover, the catechol/chitosan hydrophilic coating on the membrane surface acting as an energetic barrier

Keywords： Antifouling     Catechol/chitosan co-deposition     Oil-in-water emulsions separation     Underwater superoleophobic    

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Solvent-free mechanochemical mild oxidation method to enhance adsorption properties of chitosan

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1416-4

Abstract:

• Solvent-free chitosan oxidation is obtained by rapid mechanochemical

Keywords： Chitosan     High energy ball milling     Mechanochemistry     Oxidation    

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Anthocyanins/chitosan films doped by nano zinc oxide for active and intelligent packaging: comparison

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 704-715 doi: 10.1007/s11705-022-2270-z

Abstract: The multifunctional films was prepared by blending chitosan and nano-ZnO with purple tomato anthocyaninsThe nano-ZnO were widely dispersed in matrix and enhanced the compatibility of anthocyanins with chitosanThe tensile strength, antioxidant and antibacterial effects of the chitosan films dramatically increasedThe purple tomato anthocyanins/chitosan and nano-ZnO/purple tomato anthocyanins/chitosan films effectively

Keywords： bio-based     multifunction     colorimetric indicator     active and intelligent packaging    

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Nano-hydroxyapatite formation via co-precipitation with chitosan-g-poly(

Yang YU, Hong ZHANG, Hong SUN, Dandan XING, Fanglian YAO

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 388-400 doi: 10.1007/s11705-013-1355-0

Abstract: With the graft copolymer of chitosan and poly( -isopropylacrylamide) in coil and globule states as atemplate respectively, a novel composite from chitosan-g-poly( -isopropylacrylamide) and nano-hydroxyapatiteThe CS-g-PNIPAM/nHA composite was then introduced to chitosan-gelatin (CS-Gel) polyelectronic complex

Keywords： chitosan     poly(N-isopropylacrylamide)     hydroxyapatite     coil     globule     bone tissue engineering    

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Chitosan/polyethylene glycol impregnated activated carbons: Synthesis, characterization and adsorption

Ehsan Salehi, Fereshteh Soroush, Maryam Momeni, Aboulfazl Barati, Ali Khakpour

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 575-585 doi: 10.1007/s11705-017-1650-2

Abstract: Novel modified activated carbons (ACs) with enhanced adsorptive properties were obtained coating by chitosanThe highest adsorption capacity (424.7 mg/g) was obtained for the chitosan-coated ACs and this adsorptionOverall the chitosan had a greater effect on improving adsorption capacity whereas the polyethylene glycol

Keywords： carbon biocomposites     impregnation     chitosan     polyethylene glycol     image processing    

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Effective and selective adsorption of uranyl ions by porous polyethylenimine-functionalized carboxylated chitosan

Juan Shen, Fang Cao, Siqi Liu, Congjun Wang, Rigui Chen, Ke Chen

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 408-419 doi: 10.1007/s11705-021-2054-x

Abstract: With polyethyleneimine as a functional group, carboxylated chitosan as a matrix, and oxidizing activatednanofiller, this study synthesized a novel environment-friendly polyethylenimine-functionalized carboxylated chitosan

Keywords： polyethylenimine     carboxylated chitosan     activated charcoal     uranyl ion     adsorption    

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Synthesis of graphene oxide nanoribbons/chitosan composite membranes for the removal of uranium from

Xuewen Hu, Yun Wang, Jinbo Ou Yang,Yang Li, Peng Wu, Hengju Zhang, Dingzhong Yuan, Yan Liu, Zhenyu Wu, Zhirong Liu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1029-1038 doi: 10.1007/s11705-019-1898-9

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Formation of CaCO hollow microspheres in carbonated distiller waste from Solvay soda ash plants

Frontiers of Chemical Science and Engineering   Pages 1659-1671 doi: 10.1007/s11705-022-2173-z

Abstract: For decades, distiller waste and CO2 were not the first choice for production of high valued products. Here, CaCO3 hollow microspheres, a high-value product was synthesized from such a reaction system. The synthetic methods, the formation mechanism and operational cost were discussed. When 2.5 L·min–1·L–1 CO2 was flowed into distiller waste (pH = 11.4), spheres with 4–13 μm diameters and about 2 μm shell thickness were obtained. It is found that there is a transformation of CaCO3 particles from solid-cubic nuclei to hollow spheres. Firstly, the Ca(OH)2 in the distiller waste stimulated the nucleation of calcite with a non-template effect and further maintained the calcite form and prevented the formation of vaterite. Therefore, in absence of auxiliaries, the formation of hollow structures mainly depended on the growth and aging of CaCO3. Studies on the crystal morphology and its changes during the growth process point to the inside–out Ostwald effect in the formation of hollow spheres. Change in chemical properties of the bulk solution caused changes in interfacial tension and interfacial energy, which promoted the morphological transformation of CaCO3 particles from cubic calcite to spherical clusters. Finally, the flow process for absorption of CO2 by distiller waste was designed and found profitable.

Keywords： distiller waste     CO2     hollow microsphere     CaCO3     Ca(OH)2     inside−out    

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Facile preparation of polybenzoxazine-based carbon microspheres with nitrogen functionalities: Effects of mixed solvents on pore structure and supercapacitive performance

Uthen Thubsuang, Suphawadee Chotirut, Apisit Thongnok, Archw Promraksa, Mudtorlep Nisoa, Nicharat Manmuanpom, Sujitra Wongkasemjit, Thanyalak Chaisuwan

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1072-1086 doi: 10.1007/s11705-019-1899-8

Abstract: In this study, polybenzoxazine (PBZ)-based carbon microspheres were prepared via a facile method using a mixture of formaldehyde (F) and dimethylformamide (DMF) as the solvent. The PBZ microspheres were successfully obtained at the F/DMF weight ratios of 0.4 and 0.6. These microspheres exhibited high nitrogen contents after carbonization. The microstructures of all the samples showed an amorphous phase and a partial graphitic phase. The porous carbon with the F/DMF ratio of 0.4 showed significantly higher specific capacitance (275.1 F g ) than the reference carbon (198.9 F g ) at 0.05 A g . This can be attributed to the synergistic electrical double-layer capacitor and pseudo-capacitor behaviors of the porous carbon with the F/DMF ratio of 0.4. The presence of nitrogen/oxygen functionalities induced pseudo-capacitance in the microspheres, and hence increased their total specific capacitance. After activation with CO , the specific surface area of the carbon microspheres with the F/DMF ratio of 0.4 increased from 349 to 859 m g and the specific capacitance increased to 424.7 F g . This value is approximately two times higher than that of the reference carbon. The results indicated that the F/DMF ratio of 0.4 was suitable for preparing carbon microspheres with good supercapacitive performance. The nitrogen/oxygen functionalities and high specific surface area of the microspheres were responsible for their high capacitance.

Keywords： PBZ     carbon     porous materials     microsphere     supercapacitor    

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Title Author Date Type Operation

Microfluidic synthesis of renewable biosorbent with highly comprehensive adsorption performance for copper (II)

Yong Zhu, Zhishan Bai, Bingjie Wang, Linlin Zhai, Wenqiang Luo

Journal Article

Preparation and application of magnetic microsphere carriers

ZHANG Bo, XING Jianmin, LIU Huizhou

Journal Article

Removal of copper by modified chitosan adsorptive membrane

Xiaoshuai LIU, Zihong CHENG, Wei MA

Journal Article

Dialdehyde cellulose nanocrystal cross-linked chitosan foam with high adsorption capacity for removal

Journal Article

Correction to: Highly degradable chitosan-montmorillonite (MMT) nanocomposite hydrogel for controlled

Journal Article

Removal of clofibric acid from aqueous solution by polyethylenimine-modified chitosan beads

Yao NIE,Shubo DENG,Bin WANG,Jun HUANG,Gang YU

Journal Article

An antifouling catechol/chitosan-modified polyvinylidene fluoride membrane for sustainable oil-in-water

Shanshan Zhao, Zhu Tao, Liwei Chen, Muqiao Han, Bin Zhao, Xuelin Tian, Liang Wang, Fangang Meng

Journal Article

Solvent-free mechanochemical mild oxidation method to enhance adsorption properties of chitosan

Journal Article

Anthocyanins/chitosan films doped by nano zinc oxide for active and intelligent packaging: comparison

Journal Article

Nano-hydroxyapatite formation via co-precipitation with chitosan-g-poly(

Yang YU, Hong ZHANG, Hong SUN, Dandan XING, Fanglian YAO

Journal Article

Chitosan/polyethylene glycol impregnated activated carbons: Synthesis, characterization and adsorption

Ehsan Salehi, Fereshteh Soroush, Maryam Momeni, Aboulfazl Barati, Ali Khakpour

Journal Article

Effective and selective adsorption of uranyl ions by porous polyethylenimine-functionalized carboxylated chitosan

Juan Shen, Fang Cao, Siqi Liu, Congjun Wang, Rigui Chen, Ke Chen

Journal Article

Synthesis of graphene oxide nanoribbons/chitosan composite membranes for the removal of uranium from

Xuewen Hu, Yun Wang, Jinbo Ou Yang,Yang Li, Peng Wu, Hengju Zhang, Dingzhong Yuan, Yan Liu, Zhenyu Wu, Zhirong Liu

Journal Article

Formation of CaCO hollow microspheres in carbonated distiller waste from Solvay soda ash plants

Journal Article

Facile preparation of polybenzoxazine-based carbon microspheres with nitrogen functionalities: Effects of mixed solvents on pore structure and supercapacitive performance

Uthen Thubsuang, Suphawadee Chotirut, Apisit Thongnok, Archw Promraksa, Mudtorlep Nisoa, Nicharat Manmuanpom, Sujitra Wongkasemjit, Thanyalak Chaisuwan

Journal Article