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Song J, Chen S, Zhang Q, Xi X, Lei H, Du G, Pizzi A. Preparation and characterization of the bonding performance of a starch-based water resistance adhesive by Schiff base reaction. Int J Biol Macromol 2023; 251:126254. [PMID: 37567545 DOI: 10.1016/j.ijbiomac.2023.126254] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/29/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
Starch is one of the important raw materials for the preparation of biomass adhesives for its good viscosity and low-cost properties. However, the drawbacks of poor water resistance and bonding performance seriously restrict its application in the wood industry. To resolve those problems, an environment-friendly renewable, and high water resistance starch-based adhesive (OSTH) was prepared with oxidized starch and hexanediamine by Schiff base reaction. In order to optimize the adhesive preparation process, the effect of different oxidation times and oxidant addition on the mechanical performance of plywood were investigated. In addition, the curing behavior characteristics, thermomechanical properties, and thermal stability of the OSTH adhesives were analyzed by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and thermogravimetric analysis (TG). Fourier-transform infrared (FTIR) spectrometry and Liquid Chromatography-Mass Spectrometry (LC-MS) were used to explain the reaction mechanisms involved. The results show this adhesive has an excellent bonding performance at the oxidation time of 12 h with 11 % (w/w, dry starch basis) NaIO4 as an oxidant. The dry shear strength, 24-hour cold water, and 3-hour hot water (63 °C) soaking shear strength of the plywood bonded with this resin were respectively 1.87 MPa, 0.96 MPa, and 0.91 MPa, which satisfied the standard requirement of GB/T 9846-2015 (≥0.7 MPa). Thus, this study provided a potential strategy to prepare starch-based wood adhesives with good bonding performance and water resistance.
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Affiliation(s)
- Jiaxuan Song
- College of Chemistry and Material Engineering, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China; Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material Science and Engineering, Southwest Forestry University, 650224 Kunming, China
| | - Shi Chen
- Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material Science and Engineering, Southwest Forestry University, 650224 Kunming, China; International Joint Research Center for Biomass Materials, Southwest Forestry University, 650224 Kunming, China
| | - Qianyu Zhang
- Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material Science and Engineering, Southwest Forestry University, 650224 Kunming, China; International Joint Research Center for Biomass Materials, Southwest Forestry University, 650224 Kunming, China
| | - Xuedong Xi
- Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material Science and Engineering, Southwest Forestry University, 650224 Kunming, China; International Joint Research Center for Biomass Materials, Southwest Forestry University, 650224 Kunming, China.
| | - Hong Lei
- College of Chemistry and Material Engineering, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
| | - Guanben Du
- Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material Science and Engineering, Southwest Forestry University, 650224 Kunming, China; International Joint Research Center for Biomass Materials, Southwest Forestry University, 650224 Kunming, China
| | - Antonio Pizzi
- LERMAB, University of Lorraine, 88051 Epinal, France
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Nazerian M, Karimi J, Torshizi HJ, Papadopoulos AN, Hamedi S, Vatankhah E. An Improved Optimization Model to Predict the MOR of Glulam Prepared by UF-Oxidized Starch Adhesive: A Hybrid Artificial Neural Network-Modified Genetic Algorithm Optimization Approach. MATERIALS (BASEL, SWITZERLAND) 2022; 15:9074. [PMID: 36556880 PMCID: PMC9785485 DOI: 10.3390/ma15249074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/05/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
The purpose of the present article is to study the bending strength of glulam prepared by plane tree (Platanus Orientalis-L) wood layers adhered by UF resin with different formaldehyde to urea molar ratios containing the modified starch adhesive with different NaOCl concentrations. Artificial neural network (ANN) as a modern tool was used to predict this response, too. The multilayer perceptron (MLP) models were used to predict the modulus of rapture (MOR) and the statistics, including the determination coefficient (R2), root mean square error (RMSE), and mean absolute percentage error (MAPE) were used to validate the prediction. Combining the ANN and the genetic algorithm by using the multiple objective and nonlinear constraint functions, the optimum point was determined based on the experimental and estimated data, respectively. The characterization analysis, performed by FTIR and XRD, was used to describe the effect of the inputs on the output. The results indicated that the statistics obtained show excellent MOR predictions by the feed-forward neural network using Levenberg-Marquardt algorithms. The comparison of the optimal output of the actual values obtained by the genetic algorithm resulting from the multi-objective function and the optimal output of the values estimated by the nonlinear constraint function indicates a minimum difference between both functions.
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Affiliation(s)
- Morteza Nazerian
- Department of Bio Systems, Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran 1983969411, Iran
| | - Jalal Karimi
- Department of Bio Systems, Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran 1983969411, Iran
| | - Hossin Jalali Torshizi
- Department of Bio Refinery, Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran 1983969411, Iran
| | - Antonios N. Papadopoulos
- Laboratory of Wood Chemistry and Technology, Department of Forestry and Natural Environment, International Hellenic University, GR-661 00 Drama, Greece
| | - Sepideh Hamedi
- Department of Bio Refinery, Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran 1983969411, Iran
| | - Elham Vatankhah
- Department of Bio Systems, Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran 1983969411, Iran
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Lian F, Huang X, Lin Y, Xia W, Fu T, Wang F, He D, Zhou W, Li J. A highly efficient nanoscale tapioca starch prepared by high-speed jet for Cu 2+ removal in simulated industrial effluent. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:4298-4307. [PMID: 33417261 DOI: 10.1002/jsfa.11069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 12/30/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Nanoscale tapioca starch (NTS) was successfully developed by high-speed jet in our previous study. In this study, the adsorption capacity of Cu2+ onto NTS was further discussed. The optimal adsorption conditions (pH, contact time, contact temperature, initial Cu2+ concentration, and adsorbent concentration), adsorption kinetics, isotherms, and thermodynamic were also evaluated. RESULTS The results showed that NTS exhibited excellent performance in adsorption of Cu2+ , with adsorption capacities of 122.31 mg g-1 for Cu2+ (pH 7, 0.04 g L-1 , 0.2 g L-1 , 313.15 K and 10 min). The pseudo-second-order and Langmuir isotherms models could be used to explain the adsorption kinetics and adsorption equilibrium, respectively. The thermodynamic results showed that the adsorption process was spontaneous and endothermic with an increase in entropy. Cu2+ was adsorbed onto NTS, which was confirmed by energy dispersive spectrometry analysis. CONCLUSION These findings indicated that NTS might be an effective, environment-friendly and renewable bio-resource adsorbent for removing heavy metals in industrial effluent. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Fengli Lian
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
| | - Xiaobing Huang
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
| | - Yanyun Lin
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
| | - Wen Xia
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Tiaokun Fu
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
| | - Fei Wang
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
| | - Dongning He
- School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang, China
| | - Wei Zhou
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
- Hainan Key Laboratory of Storage and Processing of Fruits and Vegetables, Zhanjiang, China
| | - Jihua Li
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
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Su Y, Zhang B, Sun R, Liu W, Zhu Q, Zhang X, Wang R, Chen C. PLGA-based biodegradable microspheres in drug delivery: recent advances in research and application. Drug Deliv 2021; 28:1397-1418. [PMID: 34184949 PMCID: PMC8248937 DOI: 10.1080/10717544.2021.1938756] [Citation(s) in RCA: 176] [Impact Index Per Article: 58.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Biodegradable microspheres have been widely used in the field of medicine due to their ability to deliver drug molecules of various properties through multiple pathways and their advantages of low dose and low side effects. Poly (lactic-co-glycolic acid) copolymer (PLGA) is one of the most widely used biodegradable material currently and has good biocompatibility. In application, PLGA with a specific monomer ratio (lactic acid and glycolic acid) can be selected according to the properties of drug molecules and the requirements of the drug release rate. PLGA-based biodegradable microspheres have been studied in the field of drug delivery, including the delivery of various anticancer drugs, protein or peptide drugs, bacterial or viral DNA, etc. This review describes the basic knowledge and current situation of PLGA biodegradable microspheres and discusses the selection of PLGA polymer materials. Then, the preparation methods of PLGA microspheres are introduced, including emulsification, microfluidic technology, electrospray, and spray drying. Finally, this review summarizes the application of PLGA microspheres in drug delivery and the treatment of pulmonary and ocular-related diseases.
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Affiliation(s)
- Yue Su
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Bolun Zhang
- Hunan Zaochen Nanorobot Co., Ltd, Liuyang, China
| | - Ruowei Sun
- Hunan Zaochen Nanorobot Co., Ltd, Liuyang, China
| | - Wenfang Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Qubo Zhu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Xun Zhang
- Hunan Zaochen Nanorobot Co., Ltd, Liuyang, China
| | | | - Chuanpin Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
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Islam MN, Faruk MO, Rana MN, Das AK, Habib A. Preparation and Evaluation of Rice Bran-Modified Urea Formaldehyde as Environmental Friendly Wood Adhesive. GLOBAL CHALLENGES (HOBOKEN, NJ) 2021; 5:2000044. [PMID: 34141444 PMCID: PMC8182286 DOI: 10.1002/gch2.202000044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 11/27/2020] [Indexed: 06/12/2023]
Abstract
In this study, defatted rice bran (RB) is used to prepare an environmentally friendly adhesive through chemical modifications. The RB is mixed with distilled water with ratios of 1:5 and 1:4 to prepare Type A and Type B adhesives, respectively having pH of 6, 8 and 10. Type A adhesive is prepared by treating RB with 1% potassium permanganate and 4% poly(vinyl alcohol), whereas Type B is formulated by adding 17.3% formaldehyde and 5.7% urea to RB. Viscosity, gel time, solid content, shear strength, Fourier transform infrared (FTIR) spectroscopy is carried out, and glass transition temperature (T g), and activation energy (E a) are determined to evaluate the performance of the adhesives. E a data reveal that adhesives prepared at mild alkaline (pH 8) form long-chain polymers. Gel time is higher in the fabricated adhesives than that of the commercial urea formaldehyde (UF). FTIR data suggest that functional groups of the raw RB are chemically modified, which enhances the bondability of the adhesives. Shear strength data indicates that bonding strength increases with increasing pH. Similar results are also observed for physical and mechanical properties of fabricated particleboards with the adhesives. The results demonstrate that RB-based adhesives can be used as a potential alternative to currently used UF-based resin.
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Affiliation(s)
- Md Nazrul Islam
- Forestry and Wood Technology DisciplineKhulna UniversityKhulna9208Bangladesh
| | - Md Omar Faruk
- Forestry and Wood Technology DisciplineKhulna UniversityKhulna9208Bangladesh
| | - Md Nasim Rana
- Forestry and Wood Technology DisciplineKhulna UniversityKhulna9208Bangladesh
| | - Atanu Kumar Das
- Department of Forest Biomaterials and TechnologySwedish University of Agricultural SciencesUmeåSE‐90183Sweden
| | - Ahsan Habib
- Department of ChemistryUniversity of DhakaDhaka1000Bangladesh
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6
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Preparation, characterization and filtration control properties of crosslinked starch nanospheres in water-based drilling fluids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115221] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Investigating the adsorption behavior and mechanisms of insoluble Humic acid/starch composite microspheres for metal ions from water. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125672] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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8
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Wei H, Li W, Chen H, Wen X, He J, Li J. Simultaneous Diels-Alder click reaction and starch hydrogel microsphere production via spray drying. Carbohydr Polym 2020; 241:116351. [PMID: 32507200 DOI: 10.1016/j.carbpol.2020.116351] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/18/2020] [Accepted: 04/19/2020] [Indexed: 12/21/2022]
Abstract
Herein, starch was used as a raw material to produce hydrogel microspheres via a strategy that combines spray drying and a Diels-Alder reaction. First, the starch was modified with N-maleoyl alanine and succinic acid amide. Second, starch hydrogel microspheres (SGPs) and drug-loaded hydrogel microspheres (5-Fu/SGPs) were produced by spray drying an aqueous solution of the as-prepared modified starch, forming chemical crosslinks via an in situ Diels-Alder reaction during the spray drying. The microspheres slowed the release rate of 5-Fu. In vitro cytotoxicity tests indicated that the SGPs are non-toxic for model human breast cancer cells; however, the 5-Fu/SGPs demonstrated clear cytotoxicity for human breast cancer cells. Taking into account the ease of the spray drying process and the good performance of the prepared microspheres, the strategy presented here has the potential to be applied to the green preparation of drug-loaded hydrogel microspheres.
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Affiliation(s)
- Hongliang Wei
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China.
| | - Weikun Li
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Hongli Chen
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Xuejun Wen
- School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Juan He
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China
| | - Jingjing Li
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, PR China.
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9
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Jin X, Bi L, Lyu T, Chen J, Zhang H, Pan G. Amphoteric starch-based bicomponent modified soil for mitigation of harmful algal blooms (HABs) with broad salinity tolerance: Flocculation, algal regrowth, and ecological safety. WATER RESEARCH 2019; 165:115005. [PMID: 31450218 DOI: 10.1016/j.watres.2019.115005] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/17/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
The treatment of harmful algal blooms (HABs) by in-situ flocculation is an emerging technology capable of efficiently removing HABs from natural waters. However, differences in salinity, pH and algal species in freshwaters and seawaters can influence the flocculation treatment. In this study, we developed a bicomponent modified soil using amphoteric starch (AS) and poly-aluminium chloride (PAC) in order to effectively flocculate microalgae under broad salinity conditions. Specifically, the impacts of water salinity (0-3.3%), pH (3-11), and algal species (Microcystis aeruginosa and marine Chlorella sp.) were investigated in order to evaluate efficiency, dosage and mechanisms of algae flocculation. The results showed that AS-PAC modified soils possessed excellent resistance to salinity change due to the anti-polyelectrolyte effect of AS, which contributed to 99.9% removal efficiency of M. aeruginosa in fresh and saline waters, and Chlorella sp. in marine water, respectively. The dosage of the flocculant modifier was only 10-20% of that of another proven modifier (i.e. Moringa oleifera), which substantially reduced the material cost. The high salinity tolerance of algal flocculation by the AS-PAC modified soil was attributed to the synergistic processes of charge neutralization and netting-bridging. Thus, this study has developed a universal flocculant and revealed fundamental mechanisms for the mitigation of HABs under broad salinity conditions.
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Affiliation(s)
- Xiaoguang Jin
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China; School of Environment, Tsinghua University, Beijing, 100084, China
| | - Lei Bi
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Tao Lyu
- School of Animal, Rural, and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Nottinghamshire, NG25 0QF, United Kingdom; Centre of Integrated Water-Energy-Food Studies (iWEF), Nottingham Trent University, Nottinghamshire, NG25 0QF, United Kingdom.
| | - Jun Chen
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Honggang Zhang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Gang Pan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China; School of Animal, Rural, and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Nottinghamshire, NG25 0QF, United Kingdom; Centre of Integrated Water-Energy-Food Studies (iWEF), Nottingham Trent University, Nottinghamshire, NG25 0QF, United Kingdom.
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10
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Xie Y, Zhang B, Li MN, Chen HQ. Effects of cross-linking with sodium trimetaphosphate on structural and adsorptive properties of porous wheat starches. Food Chem 2019; 289:187-194. [DOI: 10.1016/j.foodchem.2019.03.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 03/07/2019] [Accepted: 03/07/2019] [Indexed: 11/26/2022]
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11
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Xie X, Huang J, Zhang Y, Tong Z, Liao A, Guo X, Qin Z, Guo Z. Aminated cassava residue-based magnetic microspheres for Pb(II) adsorption from wastewater. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0190-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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12
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Diao ZH, Du JJ, Jiang D, Kong LJ, Huo WY, Liu CM, Wu QH, Xu XR. Insights into the simultaneous removal of Cr 6+ and Pb 2+ by a novel sewage sludge-derived biochar immobilized nanoscale zero valent iron: Coexistence effect and mechanism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 642:505-515. [PMID: 29908509 DOI: 10.1016/j.scitotenv.2018.06.093] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 06/01/2018] [Accepted: 06/08/2018] [Indexed: 06/08/2023]
Abstract
Cr6+ and Pb2+ are both highly toxic pollutants and commonly co-exist in some industrial effluents and contaminated waters. In this study, simultaneous removal of Cr6+ and Pb2+ by a novel sewage sludge-derived biochar immobilized nanoscale zero-valent iron (SSB-nZVI) was systematically investigated. It was well demonstrated that a porous structure was successfully formed on the SSB-nZVI when the starch was used as an additive. A synergistic effect on the adsorption and reduction over the SSB-nZVI was achieved, resulting in nearly 90 and 82% of Cr6+ and Pb2+ removal within 30 min, respectively. Cr6+ was reduced prior to Pb2+. A low pH could accelerate the corrosion of nZVI as well as phosphate leaching. When Malachite green was added as a coexisting organic pollutant, its effective removal was found due to the formation of a Fenton-like system. The SSB-nZVI could be run consecutively three times with a relatively satisfactory performance. Most of Cr6+ was converted into Cr2O3 and Cr(OH)3 on the SSB-nZVI surface, whereas most of Pb2+ species existed as Pb(OH)2 (or PbO). A possible reaction mechanism on the SSB-nZVI involved the adsorption, reduction and precipitation of both Cr6+ and Pb2+ over the particles. Present study sheds light on the insight of the fate and transport of Cr6+ and Pb2+ in aquatic environment, as well provides helpful guide for the remediation of coexistence of pollutants in real applications.
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Affiliation(s)
- Zeng-Hui Diao
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Jian-Jun Du
- School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Dan Jiang
- Research Resources Center, South China Normal University, Guangzhou 510631, China
| | - Ling-Jun Kong
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Wen-Yi Huo
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Cui-Mei Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Qi-Hang Wu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Center for Water Quality and Conservation of the Pearl River Delta, Guangzhou University, Guangzhou 510006, China
| | - Xiang-Rong Xu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
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Wang Y, Su Q, Wang H, Zhao X, Liang S. Molded environment-friendly flame-retardant foaming material with high strength based on corn starch modified by crosslinking and grafting. J Appl Polym Sci 2018. [DOI: 10.1002/app.47193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yanbin Wang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province; College of Chemical Engineering, Northwest Minzu University; Lanzhou 730030 People's Republic of China
| | - Qiong Su
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province; College of Chemical Engineering, Northwest Minzu University; Lanzhou 730030 People's Republic of China
| | - Hongling Wang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province; College of Chemical Engineering, Northwest Minzu University; Lanzhou 730030 People's Republic of China
| | - Xiangfei Zhao
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province; College of Chemical Engineering, Northwest Minzu University; Lanzhou 730030 People's Republic of China
| | - Shuang Liang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province; College of Chemical Engineering, Northwest Minzu University; Lanzhou 730030 People's Republic of China
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14
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Recrystallization kinetics of starch microspheres prepared by temperature cycling in aqueous two-phase system. Carbohydr Polym 2018; 198:233-240. [DOI: 10.1016/j.carbpol.2018.06.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 06/06/2018] [Accepted: 06/09/2018] [Indexed: 11/18/2022]
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15
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Chai K, Lu K, Xu Z, Tong Z, Ji H. Rapid and selective recovery of acetophenone from petrochemical effluents by crosslinked starch polymer. JOURNAL OF HAZARDOUS MATERIALS 2018; 348:20-28. [PMID: 29367129 DOI: 10.1016/j.jhazmat.2018.01.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/19/2017] [Accepted: 01/16/2018] [Indexed: 05/26/2023]
Abstract
A porous crosslinked starch polymer (CSTO) using bitolylene diisocyanate as crosslinker was prepared by a facile method and used to selectively recover acetophenone (AP) from petrochemical effluent mainly containing AP and 1-phenylethanol (PE). The theoretical calculation results indicated that AP exhibited the superior affinity toward the adsorption sites of CSTO through noncovalent interactions. The adsorption measurements showed that, due to the large surface area and high affinity of phenyl rings, CSTO displayed an extremely rapid adsorption rate, a desirable adsorption capacity and selectivity to AP. The adsorption kinetics and isotherms in single solute system agreed well with the pseudo-second-order kinetic model and Freundlich isotherm model, and the adsorption was exothermic and spontaneous. Furthermore, CSTO showed excellent reusability for selective adsorption of AP from equimolar mixture of AP/PE, prompting us to further examine its applicability. In the practical application, CSTO also revealed a fast, preferential and reusable adsorption of AP from actual petrochemical effluent.
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Affiliation(s)
- Kungang Chai
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, PR China; School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Ke Lu
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, PR China
| | - Zhijun Xu
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Zhangfa Tong
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, PR China
| | - Hongbing Ji
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning, 530004, PR China; Fine Chemical Industry Research Institute, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China.
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16
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Environment-friendly urea-oxidized starch adhesive with zero formaldehyde-emission. Carbohydr Polym 2018; 181:1112-1118. [DOI: 10.1016/j.carbpol.2017.11.035] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 11/04/2017] [Accepted: 11/10/2017] [Indexed: 12/18/2022]
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17
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Nesic AR, Kokunesoski MJ, Volkov-Husovic TD, Velickovic SJ. New method for quantification of dye sorption using SBA mesoporous silica as a target sorbent. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:160. [PMID: 26875074 DOI: 10.1007/s10661-016-5155-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 02/03/2016] [Indexed: 06/05/2023]
Abstract
In this work, a new method for the quantification of methyl violet cationic dye sorption onto SBA-15 mesoporous silica was developed. This method related the intensity of coloration of SBA-15 samples (after reached equilibrium sorption) within dye concentration in aqueous solution using Image-Pro Plus software. The sorption process of methyl violet dye onto SBA-15 was analyzed varying different initial parameters (dye concentration, mass of sorbent, pH of dye solution, and contact sorption time). SBA-15 proved as efficient sorbent for removal of methyl violet dye in contact time of 5 min, with maximum percentage of dye removal 99% at pH 8. The results obtained from Image-Pro Plus showed to be in good agreement with the sorption parameters obtained by UV/Vis spectroscopy, which has been the most commonly used instrument for quantification of dye sorption. The image analysis method proved well prediction of dye concentrations with maximum relative error of 1.83%. The advantages of this method are low cost and reliable quantitative evaluation with minimum of time.
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Affiliation(s)
- Aleksandra R Nesic
- Vinca Institute of Nuclear Sciences, University of Belgrade, Mike Petrovica Alasa 12-14, Belgrade, Serbia.
| | - Maja J Kokunesoski
- Vinca Institute of Nuclear Sciences, University of Belgrade, Mike Petrovica Alasa 12-14, Belgrade, Serbia
| | | | - Sava J Velickovic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, Belgrade, Serbia
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18
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Zhang C, Yang J, Li J, Fang Z, He Y. Poly-(acryl amine-co-dimethyldiallyl ammonium chloride) graft starch flocculant for cleaning-up of wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:2394-2401. [PMID: 27191560 DOI: 10.2166/wst.2016.084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Graft starch flocculant (GSF) was synthesized by copolymerization of carboxymethylated soluble starch, acryl amine and dimethyldiallyl ammonium chloride using ceric ammonium nitrate (NH4)2Ce(NO3)6 as the polymerization initiator. The morphology was observed by scanning electron microscope, the structure was characterized by Fourier transform infrared spectroscopy and the surface area was measured by the Brunauer-Emmett-Teller method. The experimental results showed that the GSF had huge pore volume, high specific area and proper reaction groups, which could enhance its ability to adsorb heavy metal ions. The adsorption behavior was investigated through batch experiments in simulated Cu(2+)and Pb(2+) ions wastewater, and adsorption characteristics were affected by many factors, such as flocculant concentration, pH of the solution and adsorption time. Finally, the optimal adsorption parameters were gained, with GSF density of 0.024 mg·L(-1), pH of 8 and a reaction time of 30 min. Application experiments adequately demonstrated that the removal ratio of Cu(2+) and Pb(2+) ions for the local wastewater reached about 50% based on the above optimized condition.
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Affiliation(s)
- Changhu Zhang
- School of Chemical Engineering, Xi'an University, No. 1 the Sixth Science Road, Xi'an 710065, Shaanxi, China E-mail:
| | - Juxiang Yang
- School of Chemical Engineering, Xi'an University, No. 1 the Sixth Science Road, Xi'an 710065, Shaanxi, China E-mail:
| | - Jiangtao Li
- School of Chemical Engineering, Xi'an University, No. 1 the Sixth Science Road, Xi'an 710065, Shaanxi, China E-mail:
| | - Zhenhua Fang
- School of Chemical Engineering, Xi'an University, No. 1 the Sixth Science Road, Xi'an 710065, Shaanxi, China E-mail:
| | - Yaping He
- School of Chemical Engineering, Xi'an University, No. 1 the Sixth Science Road, Xi'an 710065, Shaanxi, China E-mail:
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19
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Preparation of uniform starch microcapsules by premix membrane emulsion for controlled release of avermectin. Carbohydr Polym 2016; 136:341-9. [DOI: 10.1016/j.carbpol.2015.09.050] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 09/14/2015] [Accepted: 09/15/2015] [Indexed: 11/20/2022]
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20
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Kim SY, Hwang JY, Seo JW, Shin US. Production of CNT-taxol-embedded PCL microspheres using an ammonium-based room temperature ionic liquid: As a sustained drug delivery system. J Colloid Interface Sci 2015; 442:147-53. [DOI: 10.1016/j.jcis.2014.11.044] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 11/15/2014] [Accepted: 11/17/2014] [Indexed: 11/25/2022]
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21
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Kumar R, Rashid J, Barakat MA. Synthesis and characterization of a starch–AlOOH–FeS2 nanocomposite for the adsorption of congo red dye from aqueous solution. RSC Adv 2014. [DOI: 10.1039/c4ra05183a] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This work described the synthesis and characterization of a starch–AlOOH–FeS2 nanocomposite for the adsorption of congo red (CR) dye from aqueous solution.
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Affiliation(s)
- Rajeev Kumar
- Department of Environmental Sciences
- Faculty of Meteorology
- Environment and Arid Land Agriculture
- King Abdulaziz University
- Jeddah, Saudi Arabia
| | - Jamshaid Rashid
- Department of Environmental Sciences
- Faculty of Meteorology
- Environment and Arid Land Agriculture
- King Abdulaziz University
- Jeddah, Saudi Arabia
| | - M. A. Barakat
- Department of Environmental Sciences
- Faculty of Meteorology
- Environment and Arid Land Agriculture
- King Abdulaziz University
- Jeddah, Saudi Arabia
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