1
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Lei Y, Zhang J, Liu X, Dai Z, Zhao X. Gadolinium metal-organic frameworks realizing ultra-high adsorption capacity toward anionic dyes in aqueous solution. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123563] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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2
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Design, Synthesis and Adsorption Evaluation of Bio-Based Lignin/Chitosan Beads for Congo Red Removal. MATERIALS 2022; 15:ma15062310. [PMID: 35329763 PMCID: PMC8948826 DOI: 10.3390/ma15062310] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/06/2022] [Accepted: 03/08/2022] [Indexed: 11/22/2022]
Abstract
The morphology and intermolecular interaction are two of the most important factors in the design of highly efficient dye adsorbent in the industry. Millimeter-sized, bead-type, bio-based lignin/chitosan (Lig/CS) adsorbent was designed for the removal of Congo red (CR), based on the electrostatic attraction, π-π stacking, and hydrogen bonding, which were synthesized through the emulsification of the chitosan/lignin mixture followed by chemical cross-linking. The effects of the lignin/chitosan mass ratio, initial pH, temperature, concentration, and contact time on the adsorption were thoroughly investigated. The highest adsorption capacity (173 mg/g) was obtained for the 20 wt% Lig/CS beads, with a removal rate of 86.5%. To investigate the adsorption mechanism and recyclability, an evaluation of the kinetic model and an adsorption/desorption experiment were conducted. The adsorption of CR on Lig/CS beads followed the type 1 pseudo-second-order model, and the removal rate for CR was still above 90% at five cycles.
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3
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Xu W, Li Y, Wang H, Du Q, Li M, Sun Y, Cui M, Li L. Study on the Adsorption Performance of Casein/Graphene Oxide Aerogel for Methylene Blue. ACS OMEGA 2021; 6:29243-29253. [PMID: 34746612 PMCID: PMC8567406 DOI: 10.1021/acsomega.1c04938] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/12/2021] [Indexed: 05/14/2023]
Abstract
Casein (CS) and graphene oxide (GO) were employed for the fabrication of a casein/graphene oxide (CS/GO) aerogel by vacuum freeze drying. Fourier transform infrared spectroscopy, scanning electron microscopy, surface area and micropore analysis (BET), and thermogravimetric analysis were used to characterize the specific surface area, structure, thermal stability, and morphology of the CS/GO aerogel. The influence of experimental parameters such as the GO mass fraction in the aerogel, metering of the adsorbent, pH, contact time, and temperature on the adsorption capacity of the CS/GO aerogel on methylene blue (MB) was also investigated. According to Langmuir isotherm determination, the maximum removal rate of MB from the CS/GO aerogel was 437.29 mg/g when the temperature was 293 K and pH was 8. Through kinetic and thermodynamic studies, it is found that adsorption follows a pseudo-second-order reaction model and is also an exothermic and spontaneous process.
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Affiliation(s)
- Wenshuo Xu
- State
Key Laboratory of Bio-fibers and Eco-textiles, College of Mechanical
and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Yanhui Li
- State
Key Laboratory of Bio-fibers and Eco-textiles, College of Mechanical
and Electrical Engineering, Qingdao University, Qingdao 266071, China
- College
of Materials Science and Engineering, Qingdao
University, 308 Ningxia Road, Qingdao 266071, China
| | - Huimin Wang
- State
Key Laboratory of Bio-fibers and Eco-textiles, College of Mechanical
and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Qiuju Du
- College
of Materials Science and Engineering, Qingdao
University, 308 Ningxia Road, Qingdao 266071, China
| | - Meixiu Li
- College
of Materials Science and Engineering, Qingdao
University, 308 Ningxia Road, Qingdao 266071, China
| | - Yong Sun
- State
Key Laboratory of Bio-fibers and Eco-textiles, College of Mechanical
and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Mingfei Cui
- State
Key Laboratory of Bio-fibers and Eco-textiles, College of Mechanical
and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Liubo Li
- State
Key Laboratory of Bio-fibers and Eco-textiles, College of Mechanical
and Electrical Engineering, Qingdao University, Qingdao 266071, China
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4
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Yang G, Wu Y, Liu M, Liang J, Huang Q, Dou J, Wen Y, Deng F, Zhang X, Wei Y. A novel method for the functionalization of graphene oxide with polyimidazole for highly efficient adsorptive removal of organic dyes. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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A sustainable and nondestructive method to high-throughput decolor Lycium barbarum L. polysaccharides by graphene-based nano-decoloration. Food Chem 2020; 338:127749. [PMID: 32805690 DOI: 10.1016/j.foodchem.2020.127749] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 06/12/2020] [Accepted: 07/31/2020] [Indexed: 01/19/2023]
Abstract
Lycium barbarum L. polysaccharides (LBPs) with outstanding biological activities are of increasing interest. Traditional purification approaches are time-consuming and often involve toxic solvents that destroy the functionality and structure of polysaccharides. Herein, we report a sustainable and nondestructive strategy for purifying LBPs using graphene-based nano-decoloration. The amination of graphene oxide (GO) enables the resulted aminated reduced GO (NH2-rGO) with abundant sp2-hybridized carbon domains, displaying high adsorption capacity toward pigments in crude polysaccharides. As such, within 5 min, NH2-rGO can highly effectively and fast to decolor LBPs, with a high decoloration ratio of 98.72% and a high polysaccharides retention ratio of 95.62%. Importantly, compared with traditional decoloration methods, NH2-rGO is nondestructive toward LBPs and has good reusability. Moreover, it exhibited widespread-use decoloration performance to decolor several common plant species. Overall, our proposed nano-decoloration approach is a general-purpose, sustainable, and nondestructive method to purify LBPs.
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6
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Ahmad Ali Kashmeri, Nawaz F, Yousaf M, Shameem A, Mahr MS, Iqbal J, Shafique M, Javed MA. Manganese Incorporated Eosin Y Dye/Graphene Nanocomposite: an Efficient Visible Light Active Photocatalyst. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2020. [DOI: 10.1134/s1990793120030069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Park SH, Shin SS, Park CH, Jeon S, Gwon J, Lee SY, Kim SJ, Kim HJ, Lee JH. Poly(acryloyl hydrazide)-grafted cellulose nanocrystal adsorbents with an excellent Cr(VI) adsorption capacity. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122512. [PMID: 32200239 DOI: 10.1016/j.jhazmat.2020.122512] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/24/2020] [Accepted: 03/09/2020] [Indexed: 06/10/2023]
Abstract
In this study, we prepared poly(acryloyl hydrazide) (PAH)-grafted cellulose nanocrystal (CNC-PAH) particles via the atom transfer radical polymerization method for application to Cr(VI) adsorption. The closely-packed PAH chains grafted on the cellulose nanocrystal (CNC) surface provide a high density of amine groups that can adsorb Cr(VI) through strong electrostatic, hydrogen bonding and chelating interactions. CNC-PAH exhibited the optimum Cr(VI) adsorption capacity at the solution pH = 3, where its electrostatic attraction with Cr(VI) was maximized. Cr(VI) was chemisorbed in CNC-PAH by following the Langmuir isotherm mechanism (homogeneous monolayer adsorption). The Cr(VI) adsorption kinetics of CNC-PAH was controlled predominantly by intra-particle diffusion resistance imparted by the PAH shell layer. Thermodynamic analysis revealed that Cr(VI) adsorption of CNC-PAH is a spontaneous and endothermic process. Importantly, CNC-PAH grafted with the higher Mw (∼50 kg mol-1) PAH exhibited a rapid Cr(VI) adsorption rate and remarkably high Cr(VI) adsorption capacity (∼457.6 mg g-1 at 298.15 K), exceeding those of previously reported adsorbents owing to its numerous Cr(VI)-adsorptive amine groups provided by the closely-packed grafted PAH polymers. Furthermore, CNC-PAH showed excellent reusability to maintain its high adsorption ability during repeated adsorption-desorption cycles owing to the covalently binding nature of the PAH polymers.
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Affiliation(s)
- Sang-Hee Park
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Seung Su Shin
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Chan Hyung Park
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sungkwon Jeon
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Jaegyoung Gwon
- Department of Forest Products, National Institute of Forest Science, Seoul, 02455, Republic of Korea
| | - Sun-Young Lee
- Department of Forest Products, National Institute of Forest Science, Seoul, 02455, Republic of Korea
| | - Sung-Jun Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea; Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of Korea
| | - Hyung-Ju Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of Korea
| | - Jung-Hyun Lee
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea.
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8
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Yusuf M, Song K, Geng S, Fazhi X. Adsorptive removal of anionic dyes by graphene impregnated with MnO2 from aqueous solution. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124667] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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9
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Gusain R, Kumar N, Ray SS. Recent advances in carbon nanomaterial-based adsorbents for water purification. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213111] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Gao T, Wang J, Wu Q, Wang C, Wang Z. A Graphene Oxide–Based Composite for Solid-Phase Extraction of Carbamate Pesticides from Vegetables. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01685-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Gao S, Wei G, Liu Q, Liu Q, Gao T, Yao J. Efficient removal of Congo red from pH‐unregulated aqueous solutions by lignosulfonate‐based polycatecholamine. J Appl Polym Sci 2019. [DOI: 10.1002/app.48640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Song Gao
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
| | - Gang Wei
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
- Shandong Dongyue Silicone Materials Co Ltd. Zibo 256401 People's Republic of China
| | - Qiang Liu
- Department of ChemistryTianjin University, and the National Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 People's Republic of China
| | - Qinze Liu
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
| | - Tingting Gao
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Pharmaceutical EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
| | - Jinshui Yao
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 People's Republic of China
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12
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Huang X, Liu M, Liu X, Liu Q, Chen X. Polyethyleneimine Functionalized Multi-walled Carbon Nanotubes-Based Solid Phase Extraction for Selective Screening of Carboxylic Acid Compounds in Natural Products. Chromatographia 2019. [DOI: 10.1007/s10337-019-03737-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Amer WA, Omran MM, Ayad MM. Acid-free synthesis of polyaniline nanotubes for dual removal of organic dyes from aqueous solutions. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.10.081] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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14
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Hao H, Liu G, Wang Y, Shi B, Han K, Zhuang Y, Kong Y. Simultaneous cationic Cu (II)‒anionic Sb (III) removal by NH 2-Fe 3O 4-NTA core-shell magnetic nanoparticle sorbents synthesized via a facile one-pot approach. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:246-257. [PMID: 30240999 DOI: 10.1016/j.jhazmat.2018.08.096] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 08/29/2018] [Accepted: 08/30/2018] [Indexed: 06/08/2023]
Abstract
In this study, a regenerable magnetic core-shell nanoparticles NH2-Fe3O4-NTA which include 3-aminopropyltriethoxysilane (APTES) and nitrilotriacetic acid (NTA) crosslinked to Fe3O4 was developed by one-pot method for simultaneous removal of cationic and anionic metals. Another nanocomposite NH2-Fe3O4-NTAII was prepared by multi-step method for comparison. NH2-Fe3O4-NTA had positive zeta potential values of 35.1-0.8 mV at pH 1.8-11.0, with the saturation magnetization and surface area up to 40.56 emu/g and 56.94 m2/g, respectively. The maximum sorption capacities of NH2-Fe3O4-NTA for cationic Cu (II) and anionic Sb (III) were 55.56 and 51.07 mg/L, respectively, which were superior to that of NH2-Fe3O4-NTAII. Based on screening in terms of characterization and metal sorption capacity, NH2-Fe3O4-NTA with a feasible synthesis scheme was chosen for further evaluation. The Cu (II) removal by NH2-Fe3O4-NTA was favored with increasing pH, while the Sb (III) removal preferred low pH (2-3). Simultaneous sorption of Cu (II) and Sb (III) exhibited same removal performance with the sole sorption under high dosage (>1 g/L). In real wastewater applications of NH2-Fe3O4-NTA, multiple metals in actual wastewater could be removed to well below the regulation levels. Nonspecific electrostatic interactions, inner-sphere complexation, ligand exchange, chelation and coordination complexation were responsible for Cu (II) and Sb (III) removal.
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Affiliation(s)
- Haotian Hao
- College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, No. 35, Tsinghua East Rd, Beijing, 100083, China
| | - Guifeng Liu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Rd, Beijing, 100085, China
| | - Yili Wang
- College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, No. 35, Tsinghua East Rd, Beijing, 100083, China.
| | - Baoyou Shi
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Rd, Beijing, 100085, China; University of Chinese Academy of Sciences, No. 19, Yuquan Rd, Beijing 100049, China
| | - Kun Han
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Rd, Beijing, 100085, China
| | - Yuan Zhuang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Rd, Beijing, 100085, China
| | - Yan Kong
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Rd, Beijing, 100085, China
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15
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Prabhu SM, Khan A, Hasmath Farzana M, Hwang GC, Lee W, Lee G. Synthesis and characterization of graphene oxide-doped nano-hydroxyapatite and its adsorption performance of toxic diazo dyes from aqueous solution. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.044] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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16
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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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17
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Dong K, Hu T, Wei G, Liu Q, Gao T, Zhang X, Yao J. Removal of hexavalent chromium from aqueous solution using novel dye-based adsorbent prepared by flocculation. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1538242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Kaijie Dong
- School of Materials Science and Engineering, Qilu University of Technology, Jinan, PR China
| | - Tao Hu
- School of Materials Science and Engineering, Qilu University of Technology, Jinan, PR China
| | - Gang Wei
- School of Materials Science and Engineering, Qilu University of Technology, Jinan, PR China
| | - Qinze Liu
- School of Materials Science and Engineering, Qilu University of Technology, Jinan, PR China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, PR China
| | - Tingting Gao
- School of Materials Science and Engineering, Qilu University of Technology, Jinan, PR China
| | - Xian Zhang
- School of Materials Science and Engineering, Qilu University of Technology, Jinan, PR China
| | - Jinshui Yao
- School of Materials Science and Engineering, Qilu University of Technology, Jinan, PR China
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18
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Efficient preparation of cetyltrimethylammonium bromide-graphene oxide composite and its adsorption of Congo red from aqueous solutions. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.06.048] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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19
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Huang X, Yu F, Peng Q, Huang Y. Superb adsorption capacity of biochar derived from leather shavings for Congo red. RSC Adv 2018; 8:29781-29788. [PMID: 35547275 PMCID: PMC9085273 DOI: 10.1039/c8ra06370b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 08/07/2018] [Indexed: 11/21/2022] Open
Abstract
Research on biochar for removal of dyes has been a hot topic because of its excellent eco-friendly and economical properties. In this study, leather shavings biochar (LSB) with high adsorption capacity was prepared and tested with Congo red as a model dye for adsorption. The research results show that the as-prepared biochar exhibits a porous structure, with a high specific surface area (2365 m2 g-1), and it would be beneficial for removing Congo red from effluents. More interestingly, adsorption capacity of LSB for Congo red was enhanced by chromium compounds on the surface of biochar through chelation and electrostatic interactions. Chelation occured between the chromium compounds and amino groups of Congo red. Adsorption data for Congo red on the biochar were successfully described by Langmuir isotherm and the pseudo-second order kinetics model. Langmuir maximum adsorption capacity of LSB at 30 °C reached 1916 mg g-1, which is much higher than that of conventional activated carbon (AC). Recycling experiment shows that LSB has a potential market for removing Congo red.
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Affiliation(s)
- Xueping Huang
- Beijing Laboratory of Biomedical Materials, Beijing Key Laboratory of Electrochemical Process and Technology for Material, Beijing University of Chemical Technology Beijing 100029 China
| | - Fan Yu
- Beijing Laboratory of Biomedical Materials, Beijing Key Laboratory of Electrochemical Process and Technology for Material, Beijing University of Chemical Technology Beijing 100029 China
| | - Qifan Peng
- Beijing Laboratory of Biomedical Materials, Beijing Key Laboratory of Electrochemical Process and Technology for Material, Beijing University of Chemical Technology Beijing 100029 China
| | - Yaqin Huang
- Beijing Laboratory of Biomedical Materials, Beijing Key Laboratory of Electrochemical Process and Technology for Material, Beijing University of Chemical Technology Beijing 100029 China
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20
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High effective adsorption/removal of illegal food dyes from contaminated aqueous solution by Zr-MOFs (UiO-67). Food Chem 2018; 254:241-248. [DOI: 10.1016/j.foodchem.2018.02.011] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 01/12/2018] [Accepted: 02/02/2018] [Indexed: 02/06/2023]
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21
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Wu Y, Ji H, Yang F, Meng Y, Wang Y, Dai J, Ren H, Tan G, Xiao D. Functional reduced graphene oxide-based membranes with selective ion transport channels for zwitterionic ions separation based on the pH gradient. NANOSCALE 2018; 10:1119-1128. [PMID: 29271450 DOI: 10.1039/c7nr07081k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, we report a method for the fabrication of a functional free-standing graphene membrane (FFGM) with high mechanical strength, enlarged interlayer spacing and ion channels for zwitterionic ions separation. To obtain the FFGM, the anionic dye Eosin Y (EY) was introduced into a graphene oxide (GO) and hydroquinone (HQ) mixture to prepare functional graphene-based membranes on Cu foil using simply a drop-casting method. In comparison with a GO membrane, the molar flux and the mechanical strength of the FFGM were dramatically increased. The FFGM was then equipped on custom-built glass reservoirs for zwitterionic amino acids (AAs) separation based on the inner pH gradient, which was formed by controlling H+ and OH- (in the feed and receiver solution) migration in rGO/GO sheets via an external electric field. With the help of the inner pH gradient and external electric field, AAs could change their charge behaviors. The ionized AAs transport through the FFGM and finally separation was realized.
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Affiliation(s)
- Yu Wu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China.
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22
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Li C, Xia H, Zhang L, Peng J, Cheng S, Shu J, Zhang S. Kinetics, thermodynamics, and isotherm study on the removal of methylene blue dye by adsorption via copper modified activated carbon. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3225-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Peyravi M. Synthesis of nitrogen doped activated carbon/polyaniline material for CO2adsorption. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4117] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Majid Peyravi
- 1-Nano-Environmental Research Group, Nanotechnology Research Institute, Faculty of Chemical Engineering; Babol Noshirvani University of Technology; Babol Iran
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24
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Rashidi Nodeh H, Sereshti H, Gaikani H, Kamboh MA, Afsharsaveh Z. Magnetic graphene coated inorganic-organic hybrid nanocomposite for enhanced preconcentration of selected pesticides in tomato and grape. J Chromatogr A 2017. [PMID: 28634067 DOI: 10.1016/j.chroma.2017.06.032] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The new magnetic graphene based hybrid silica-N-[3-(trimethoxysilyl)propyl]ethylenediamine (MG@SiO2-TMSPED) nanocomposite was synthesized via sol-gel process, and used as an effective adsorbent in magnetic solid phase extraction (MSPE) of three selected pesticides followed by gas chromatography micro-electron capture detection (GC-μECD). The adsorbent was characterized using Fourier transform-infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET), Barrett-Joyner-Halenda (BJH), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDXS) techniques. The analytical validity of the developed method was evaluated under optimized conditions and the following figures of merit were obtained: linearity, 1-20μgkg-1 with good determination coefficients (R2=0.995-0.999); limits of detection (LODs), 0.23-0.30μgkg-1 (3×SD/m, n=3); and limits of quantitation (LOQ), 0.76-1.0μgkg-1 (10×SD/m, n=3). The precision (RSD%) of the proposed MSPE method was studied based on intra-day (3.43-8.83%, n=3) and inter-day (6.68-8.37%, n=12) precisions. Finally, the adsorbent was applied to determination of pesticides in tomato and grape samples and good recoveries were obtained in the range from 82 to 113% (RSDs 5.1-8.1%, n=3).
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Affiliation(s)
- Hamid Rashidi Nodeh
- Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran
| | - Hassan Sereshti
- Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran.
| | - Hamid Gaikani
- Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran
| | - Muhammad Afzal Kamboh
- Department of Chemistry, Faculty of Science, Shaheed Benazir Bhutto University, Benazirabad, Pakistan
| | - Zahra Afsharsaveh
- Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran
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