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Anulekshmi PS, Nithya K, Kumar PS, Sathish A, M P, Rekha E, Cheruvally AS, Rangasamy G. Design of biocompatible gelatin hydrogels reinforced with magnetite nanoparticles: Effective removal of chromium from water environment. ENVIRONMENTAL RESEARCH 2024; 260:119768. [PMID: 39134114 DOI: 10.1016/j.envres.2024.119768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 08/06/2024] [Accepted: 08/08/2024] [Indexed: 08/17/2024]
Abstract
The development of biocompatible adsorbents is vital for environmental remediation to control and reduce pollution and waste accumulation in ecosystems. Biocompatible hydrogels represent an innovative class of materials that are primarily composed of polymer chain units forming their structural framework. They have a high affinity for water molecules. This research thus aims to incorporate iron oxide particles into the gelatin matrix to produce gelatin hydrogel beads to remove hexavalent chromium from an aqueous solution. The synthesized beads, known for their consistent size, low friction, high specific surface area, mechanical stability, and lightweight characteristics, demonstrated their suitability for various industrial applications. The effectiveness of these hydrogels in removing hexavalent chromium ions was confirmed through a thorough analysis using techniques such as FTIR, TGA, SEM, EDX, VSM, and XPS. Batch experiments revealed that the gelatin-based nanocomposite beads exhibited optimal adsorption efficiency under acidic conditions, lower initial concentrations of chromium ions, extended contact time, and elevated temperature (50-60 °C). The composite achieved a maximum removal efficiency of 99% at pH 1, with an adsorbent dose of 0.5 g at 50 °C, and an initial concentration of 50 mg per liter. The use of 0.7 N NaOH in the regeneration process resulted in a commendable 70.5% desorption efficiency, enabling potential reuse and regeneration. Significantly, the desorption efficiency remained consistently high even after four desorption-readsorption cycles, contributing to the economic and environmental sustainability of chromium removal. Additionally, the study determined that the sorption process was feasible, spontaneous, and endothermic. These collective findings suggest that magnetic gelatin hydrogel beads could serve as a cost-effective alternative adsorbent for the efficient removal of chromium ions from aqueous solutions.
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Affiliation(s)
- P S Anulekshmi
- Department of Chemical Engineering and Materials Science, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India; Centre of Excellence in Advanced Materials and Green Technologies (CoE-AMGT), Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India
| | - K Nithya
- Department of Chemical Engineering and Materials Science, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India; Centre of Excellence in Advanced Materials and Green Technologies (CoE-AMGT), Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India.
| | - P Senthil Kumar
- Centre for Pollution Control and Environmental Engineering, School of Engineering and Technology, Pondicherry University, Kalapet, Puducherry, 605 014, India.
| | - Asha Sathish
- Department of Sciences, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India; Functional Materials Laboratory, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India
| | - Priyadarshini M
- Department of Sciences, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India; Functional Materials Laboratory, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India
| | - E Rekha
- Department of Sciences, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India; Functional Materials Laboratory, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India
| | - Aswathy S Cheruvally
- Department of Chemical Engineering and Materials Science, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India; Centre of Excellence in Advanced Materials and Green Technologies (CoE-AMGT), Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, 641112, India
| | - Gayathri Rangasamy
- Department of Civil Engineering, Faculty of Engineering, Karpagam Academy of Higher Education, Pollachi Main Road, Eachanari Post, Coimbatore 641021, Tamil Nadu, India; University Centre for Research and Development & Department of Civil Engineering, Chandigarh University, Gharuan, Mohali, Punjab, 140413, India
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2
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Saket P, Kashyap M, Bala K, Joshi A. Microalgae and bio-polymeric adsorbents: an integrative approach giving new directions to wastewater treatment. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:536-556. [PMID: 34340616 DOI: 10.1080/15226514.2021.1952925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This review analyses the account of biological (microalgae) and synthetic (bio-polymeric adsorbents) elements to compass the treatment efficiencies of various water pollutants and mechanisms behind them. While considering pollutant removal, both techniques have their own merits and demerits. Microalgal-based methods have been dominantly used as a biological method for pollutant removal. The main limitations of microalgal methods are capacity, scale, dependence on variables of environment and duration of the process. Biopolymers on the other hand are naturally produced, abundant in nature, environmentally safe and biocompatible with cells and many times biodegradable. Algal immobilization in biopolymers has promoted the reuse of cells for further treatment and protected cells from toxic environment monitoring and controlling the external factors like pH, temperature and salinity can promote the removal process while working with the mentioned technologies. In this review, a mechanistic view of both these techniques along with integrated approaches emphasizing on their loopholes and possibilities of improvement in these techniques is represented. In addition to these, the review also discusses the post-treatment effect on algal cells which are specifically dependent on pollutant type and their concentration. All these insights will aid in developing integrated solutions to improve removal efficiencies in an environmentally safe and cost-effective manner.Novelty statement The main objective of this review is to thoroughly understand the role of micro-algal cells and synthetic adsorbents individually as well as their integrative effect in the removal of pollutants from wastewater. Many reviews have been published containing information related to either removal mechanism by algae or synthetic adsorbents. While in this review we have discussed the agents, algae and synthetic adsorbents along with their limitations and explained how these limitations can be overcome with the integration of both the moieties together in process of immobilization. We have covered both the analytical and mechanistic parts of these technologies. Along with this, the post-treatment effects on algae have been discussed which can give us a critical understanding of algal response to pollutants and by-products obtained after treatment. This review contains three different sections, their importance and also explained how these technologies can be improved in the future aspects.
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Affiliation(s)
- Palak Saket
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore
| | - Mrinal Kashyap
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore
| | - Kiran Bala
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore
| | - Abhijeet Joshi
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore
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Madri RK, Tiwari D, Sinha I. Efficient removal of chromate ions from aqueous solution using a highly cost-effective ferric coordinated [3-(2-aminoethylamino)propyl]trimethoxysilane-MCM-41 adsorbent. RSC Adv 2021; 11:11204-11214. [PMID: 35423642 PMCID: PMC8695815 DOI: 10.1039/d0ra07425j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/19/2020] [Indexed: 01/14/2023] Open
Abstract
The present investigation involves synthesis and characterization of MCM-41-AEAPTMS-Fe(iii)Cl using coordinated Fe(iii) on MCM-41-AEAPTMS for efficient removal of hazardous Cr(vi) ions from aqueous solution. The adsorbent MCM-41-AEAPTMS-Fe(iii)Cl was characterized using small-angle X-ray diffraction (SAX), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier-transform infrared (FT-IR) and Brunauer-Emmett-Teller (BET) surface analyzer techniques. The BET surface area was found to be 87.598 m2 g-1. The MCM-41-AEAPTMS-Fe(iii)Cl effectively adsorbs Cr(vi) with an adsorption capacity acquiring the maximum value of 84.9 mg g-1 at pH 3 at 298 K. The data followed pseudo-second-order kinetics and obeyed the Langmuir isotherm model. The thermodynamic data proved the exothermic and spontaneous nature of Cr(vi) ion adsorption on MCM-41-AEAPTMS-Fe(iii). Further, the higher value of ΔH° (-64.339 kJ mol-1) indicated that the adsorption was chemisorption in nature.
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Affiliation(s)
- Rakesh Kumar Madri
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University Varanasi-221005 India +91-9415992174
| | - Dhanesh Tiwari
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University Varanasi-221005 India +91-9415992174
| | - Indrajit Sinha
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University Varanasi-221005 India +91-9415992174
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Luo M, Huang C, Chen F, Chen C, Li H. Removal of aqueous Cr(VI) using magnetic-gelatin supported on Brassica-straw biochar. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1785889] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mina Luo
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, People's Republic of China
| | - Chao Huang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, People's Republic of China
| | - Fu Chen
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, People's Republic of China
| | - Changcheng Chen
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, People's Republic of China
| | - Huan Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, People's Republic of China
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Jamwal HS, Ranote S, Kumar D, Chauhan GS, Bansal M. Gelatin-based mesoporous hybrid materials for Hg2+ ions removal from aqueous solutions. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116513] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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6
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Jang EH, Pack SP, Kim I, Chung S. A systematic study of hexavalent chromium adsorption and removal from aqueous environments using chemically functionalized amorphous and mesoporous silica nanoparticles. Sci Rep 2020; 10:5558. [PMID: 32221311 PMCID: PMC7101345 DOI: 10.1038/s41598-020-61505-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 02/27/2020] [Indexed: 11/08/2022] Open
Abstract
We report on the synthesis and characterization of highly monodisperse amorphous silica nanoparticles (ASNs) and mesoporous silica nanoparticles (MSNs) with particle sizes of 15-60 nm. We demonstrate adsorption of Cr(VI) ions on amino-functionalized ASNs (NH2-ASNs) and MSNs (NH2-MSNs) and their removal from aqueous environments and show the specific surface area (SSA) of NH2-MSNs is four times as larger as that of NH2-ASNs and that more than 70% of the total SSA of NH2-MSNs is due to the presence of nanopores. Analyses of Cr(VI) adsorption kinetics on NH2-ASNs and NH2-MSNs exhibited relatively rapid adsorption behavior following pseudo-second order kinetics as determined by nonlinear fitting. NH2-ASNs and NH2-MSNs exhibited significantly higher Cr(VI) adsorption capacities of 34.0 and 42.2 mg·g-1 and removal efficiencies of 61.9 and 76.8% than those of unfunctionalized ASNs and MSNs, respectively. The Langmuir model resulted in best fits to the adsorption isotherms of NH2-ASNs and NH2-MSNs. The adsorption of Cr(VI) on NH2-ASNs and NH2-MSNs was an endothermic and spontaneous process according to the thermodynamic analyses of temperature-dependent adsorption isotherms. The removal efficiencies of NH2-ASNs and NH2-MSNs exhibited a moderate reduction of less than 25% of the maximum values after five regeneration cycles. Furthermore, NH2-MSNs were also found to reduce adsorbed Cr(VI) into less harmful Cr(III).
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Affiliation(s)
- Eun-Hye Jang
- School of Chemical and Biomolecular Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea
- Department of Polymer Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong, 30019, South Korea
| | - Il Kim
- Department of Polymer Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea
| | - Sungwook Chung
- School of Chemical and Biomolecular Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea.
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Fabrication of a photoelectric-sensitive imprinting polymer by PPy-cross-linked Gel/CS complex and its comprehensive treatment of Cr(VI). Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02780-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Chen H, Hu J, Zhou H, Zhou X, Xu H. One step synthesis, characterization of F127-Mn+-chlorpyrifos mesoporous silica for sustained release system with pH sensitivity. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2019. [DOI: 10.1080/10601325.2018.1504612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Huayao Chen
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P.R. China
- Guangzhou Key Lab for Efficient Use of Agricultural Chemicals, Guangzhou, P.R. China
| | - Junlong Hu
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P.R. China
- Guangzhou Key Lab for Efficient Use of Agricultural Chemicals, Guangzhou, P.R. China
| | - Hongjun Zhou
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P.R. China
- Guangzhou Key Lab for Efficient Use of Agricultural Chemicals, Guangzhou, P.R. China
| | - Xinhua Zhou
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P.R. China
- Guangzhou Key Lab for Efficient Use of Agricultural Chemicals, Guangzhou, P.R. China
| | - Hua Xu
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P.R. China
- Guangzhou Key Lab for Efficient Use of Agricultural Chemicals, Guangzhou, P.R. China
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Sauvanier D, Li WSJ, Ferlin N, Lacroix‐Desmazes P, Prelot B, Hesemann P. Simple and Straightforward Synthesis of Porous Ionosilica for Efficient Chromate Adsorption. Isr J Chem 2018. [DOI: 10.1002/ijch.201800153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- David Sauvanier
- Institut Charles GerhardtUMR5253 CNRS, Université de Montpellier, ENSCM Place Eugène Bataillon 34095 Montpellier cedex 05 France
| | - W. S. Jennifer Li
- Institut Charles GerhardtUMR5253 CNRS, Université de Montpellier, ENSCM Place Eugène Bataillon 34095 Montpellier cedex 05 France
| | - Nadège Ferlin
- Institut Charles GerhardtUMR5253 CNRS, Université de Montpellier, ENSCM Place Eugène Bataillon 34095 Montpellier cedex 05 France
| | - Patrick Lacroix‐Desmazes
- Institut Charles GerhardtUMR5253 CNRS, Université de Montpellier, ENSCM Place Eugène Bataillon 34095 Montpellier cedex 05 France
| | - Bénédicte Prelot
- Institut Charles GerhardtUMR5253 CNRS, Université de Montpellier, ENSCM Place Eugène Bataillon 34095 Montpellier cedex 05 France
| | - Peter Hesemann
- Institut Charles GerhardtUMR5253 CNRS, Université de Montpellier, ENSCM Place Eugène Bataillon 34095 Montpellier cedex 05 France
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Rivas BL, Urbano BF, Sánchez J. Water-Soluble and Insoluble Polymers, Nanoparticles, Nanocomposites and Hybrids With Ability to Remove Hazardous Inorganic Pollutants in Water. Front Chem 2018; 6:320. [PMID: 30109224 PMCID: PMC6079269 DOI: 10.3389/fchem.2018.00320] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 07/10/2018] [Indexed: 11/13/2022] Open
Abstract
The polymeric materials have presented a great development in adsorption processes for the treatment of polluted waters. The aim of the current review is to present the recent developments in this field of study by examining research of systems like functional water-soluble polymers and water-soluble polymer-metal complexes coupled to ultrafiltration membranes for decontamination processes in liquid-liquid phase. Noticing that a water-soluble polymer can be turned into insoluble compounds by setting a crosslinking point, connecting the polymer chains leading to polymer resins suitable for solid-liquid extraction processes. Moreover, these crosslinked polymers can be used to develop more complex systems such as (nano)composite and hybrid adsorbents, combining the polymers with inorganic moieties such as metal oxides. This combination results in novel materials that overcome some drawbacks of each separated components and enhance the sorption performance. In addition, new trends in hybrid methods combining of water-soluble polymers, membranes, and electrocatalysis/photocatalysis to remove inorganic pollutants have been discussed in this review.
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Affiliation(s)
- Bernabé L Rivas
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Bruno F Urbano
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Julio Sánchez
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago, Santiago, Chile
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11
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Nayab S, Baig H, Ghaffar A, Tuncel E, Oluz Z, Duran H, Yameen B. Silica based inorganic–organic hybrid materials for the adsorptive removal of chromium. RSC Adv 2018; 8:23963-23972. [PMID: 35540296 PMCID: PMC9081705 DOI: 10.1039/c8ra04209h] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 06/21/2018] [Indexed: 01/09/2023] Open
Abstract
We employed polymer functionalized silica gel as an adsorbent for the removal of Cr(vi) from water. The chains of 2-aminoethyl methacrylate hydrochloride (AEMA·HCl) polymer were grown from the surface of silica gel via surface-initiated conventional radical polymerization and the resulting hybrid material exhibited high affinity for chromium(vi). To investigate the adsorption behavior of Cr(vi) on diverse polymer based hybrid materials, the removal capacity of (SG-AEMH) was compared with our previously reported branched polyamine functionalized mesoporous silica (MS-PEI). The adsorption capacities of polymer based materials were also compared with their respective monolayer based platforms comprising a 3-aminopropyltriethoxysilane (APTES) functionalized silica gel (SG-APTES) and mesoporous silica (MS-APTES). The polymer based systems showed excellent Cr(vi) adsorption efficiencies compared to monolayer counterparts. The structural characteristics and surface modification of these adsorbents were examined by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The experimental data were analyzed using the Langmuir and Freundlich models. Correlation coefficients were determined by analyzing each isotherm. The kinetic data of adsorption reactions were described by pseudo-first-order and pseudo-second-order equations. Thermodynamic parameters, i.e., change in the free energy (ΔG°), the enthalpy (ΔH°), and the entropy (ΔS°), were also evaluated. The synthesized hybrid materials exhibited a high adsorption capacity for chromium ions. Furthermore, they could be regenerated and recycled effectively. We employed and compared polymer functionalized silica gel and mesoporous silica as adsorbents for the removal of Cr(vi) from water.![]()
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Affiliation(s)
- Sana Nayab
- Department of Chemistry and Chemical Engineering
- SBA School of Science and Engineering
- Lahore University of Management Sciences (LUMS)
- Lahore-54792
- Pakistan
| | - Humaira Baig
- Department of Chemistry and Chemical Engineering
- SBA School of Science and Engineering
- Lahore University of Management Sciences (LUMS)
- Lahore-54792
- Pakistan
| | - Abdul Ghaffar
- Department of Chemistry
- University of Engineering and Technology (UET)
- Lahore
- Pakistan
| | - Eylül Tuncel
- Department of Materials Science & Nanotechnology Engineering
- TOBB University of Economics and Technology
- 06560 Ankara
- Turkey
| | - Zehra Oluz
- Department of Materials Science & Nanotechnology Engineering
- TOBB University of Economics and Technology
- 06560 Ankara
- Turkey
| | - Hatice Duran
- Department of Materials Science & Nanotechnology Engineering
- TOBB University of Economics and Technology
- 06560 Ankara
- Turkey
| | - Basit Yameen
- Department of Chemistry and Chemical Engineering
- SBA School of Science and Engineering
- Lahore University of Management Sciences (LUMS)
- Lahore-54792
- Pakistan
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Fu HR, Wang N, Qin JH, Han ML, Ma LF, Wang F. Spatial confinement of a cationic MOF: a SC–SC approach for high capacity Cr(vi)-oxyanion capture in aqueous solution. Chem Commun (Camb) 2018; 54:11645-11648. [DOI: 10.1039/c8cc05990j] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Compound 1 could be used as a single crystal container to capture Cr(vi)-oxyanions via ion exchange with high capacity and selectivity. It is the first report that demonstrates that CrO42− ions could be traced and confirmed through a single-crystal to single-crystal (SC–SC) pattern.
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Affiliation(s)
- Hong-Ru Fu
- College of Chemistry and Chemical Engineering, Henan Province Function-oriented Porous Materials Key Laboratory, Luoyang Normal University
- Luoyang 471934
- P. R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
- Fuzhou
| | - Ning Wang
- College of Chemistry and Chemical Engineering, Henan Province Function-oriented Porous Materials Key Laboratory, Luoyang Normal University
- Luoyang 471934
- P. R. China
| | - Jian-Hua Qin
- College of Chemistry and Chemical Engineering, Henan Province Function-oriented Porous Materials Key Laboratory, Luoyang Normal University
- Luoyang 471934
- P. R. China
| | - Min-Le Han
- College of Chemistry and Chemical Engineering, Henan Province Function-oriented Porous Materials Key Laboratory, Luoyang Normal University
- Luoyang 471934
- P. R. China
| | - Lu-Fang Ma
- College of Chemistry and Chemical Engineering, Henan Province Function-oriented Porous Materials Key Laboratory, Luoyang Normal University
- Luoyang 471934
- P. R. China
| | - Fei Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
- Fuzhou
- China
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Ravi T, Anuradha Jabasingh S. Preparation and characterization of higher degree-deacetylated chitosan-coated magnetic adsorbent for the removal of chromium(VI) from its aqueous mixture. J Appl Polym Sci 2017. [DOI: 10.1002/app.45878] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- T. Ravi
- Department of Chemical Engineering, School of Bio and Chemical Engineering; Sathyabama University; Chennai 600119 Tamil Nadu India
| | - S. Anuradha Jabasingh
- Process Engineering Division, School of Chemical and Bio Engineering; Addis Ababa Institute of Technology, Addis Ababa University; Addis Ababa Ethiopia
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Chen H, Lin Y, Zhou H, Zhou X, Gong S, Xu H. Synthesis and Characterization of Chlorpyrifos/Copper(II) Schiff Base Mesoporous Silica with pH Sensitivity for Pesticide Sustained Release. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:8095-8102. [PMID: 27715024 DOI: 10.1021/acs.jafc.6b03262] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The salicylaldehyde-modified mesoporous silica (SA-MCM-41) was prepared through a co-condensation method. Through the bridge effect from the copper ion, which also acts as the nutrition of the plant, the model drug chlorpyrifos (CH) was supported on the copper(II) Schiff base mesoporous silica (Cu-MCM-41) to form a highly efficient sustained-release system (CH-Cu-MCM-41) for pesticide delivery. The experimental results showed that the larger the concentration of the copper ion, the more adsorption capacity (AC) of Cu-MCM-41 for chlorpyrifos and the smaller its release rate. The results confirmed the existence of a coordination bond between SA-MCM-41 and copper ions as well as a coordination bond between Cu-MCM-41 and chlorpyrifos. The AC of SA-MCM-41 is 106 mg/g, while that of Cu-MCM-41 is 295 mg/g. The as-synthesized system showed significant pH sensitivity. Under the condition of pH ≤ 7, the release rate of chlorpyrifos decreased with increasing pH, whereas its release rate in weak base conditions was slightly larger than that in weak acid conditions. Meanwhile, the drug release rate of the as-synthesized system was also affected by the temperature. Their sustained-release curves can be described by the Korsmeyer-Peppas equation.
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Affiliation(s)
- Huayao Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering , Guangzhou, Guangdong 510225, People's Republic of China
| | - Yueshun Lin
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering , Guangzhou, Guangdong 510225, People's Republic of China
| | - Hongjun Zhou
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering , Guangzhou, Guangdong 510225, People's Republic of China
| | - Xinhua Zhou
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering , Guangzhou, Guangdong 510225, People's Republic of China
| | - Sheng Gong
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering , Guangzhou, Guangdong 510225, People's Republic of China
| | - Hua Xu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering , Guangzhou, Guangdong 510225, People's Republic of China
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15
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Kalidhasan S, Santhana Krishna Kumar A, Rajesh V, Rajesh N. The journey traversed in the remediation of hexavalent chromium and the road ahead toward greener alternatives—A perspective. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.03.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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16
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Shao D, Ren X, Wen J, Hu S, Xiong J, Jiang T, Wang X, Wang X. Immobilization of uranium by biomaterial stabilized FeS nanoparticles: Effects of stabilizer and enrichment mechanism. JOURNAL OF HAZARDOUS MATERIALS 2016; 302:1-9. [PMID: 26448488 DOI: 10.1016/j.jhazmat.2015.09.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 09/04/2015] [Accepted: 09/21/2015] [Indexed: 05/26/2023]
Abstract
Iron sulfide (FeS) nanoparticles have been recognized as effective scavengers for multi-valent metal ions. However, the aggregation of FeS nanoparticles in aqueous solution greatly restricts their application in real work. Herein, different biomaterial-FeS nanoparticles were developed for the in-situ immobilization of uranium(VI) in radioactive waste management. TEM images suggested that sodium carboxymethyl cellulose (CMC) and gelatin can effectively suppress the aggregation of FeS nanoparticles in aqueous solutions. The resulting CMC-FeS and gelatin-FeS were stable in aqueous solutions and showed high adsorption capacity for U(VI). Specially, gelatin-FeS showed the best performance in U(VI) adsorption-reduction immobilization under experimental conditions. The maximum enrichment capacity of U(VI) on CMC-FeS and gelatin-FeS at pH 5.0 and 20 °C achieved to ∼430 and ∼556 mg/g, respectively. Additionally, gelatin-FeS and CMC-FeS nanoparticles presented excellent tolerance to environmental salinity. The immobilized U(VI) on the surfaces of CMC-FeS and gelatin-FeS remained stable more than one year. These findings highlight the possibility of using ggelatin-FeS for efficient immobilization of U(VI) from radioactive wastewater.
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Affiliation(s)
- Dadong Shao
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, PR China; Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, PR China
| | - Xuemei Ren
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, PR China.
| | - Jun Wen
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, PR China
| | - Sheng Hu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, PR China
| | - Jie Xiong
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, PR China
| | - Tao Jiang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, PR China
| | - Xiaolin Wang
- China Academy of Engineering Physics, Mianyang 621900, PR China.
| | - Xiangke Wang
- School of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, PR China.
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17
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Li T, Xie D, He C, Xu X, Huang B, Nie R, Liu S, Duan Z, Liu W. Simultaneous adsorption of fluoride and hexavalent chromium by synthetic mesoporous alumina: performance and interaction mechanism. RSC Adv 2016. [DOI: 10.1039/c6ra04604e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Combined pollution by fluoride (F−) and hexavalent chromium (Cr(vi)) in water bodies causes much environmental concern and its treatment is of the utmost importance.
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Affiliation(s)
- Tianguo Li
- Faculty of Environmental Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- PR China
| | - Daolei Xie
- Faculty of Environmental Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- PR China
| | - Changhua He
- Faculty of Environmental Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- PR China
| | - Xiaojun Xu
- Faculty of Environmental Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- PR China
| | - Bin Huang
- Institute of Environment and Life
- Dalian University of Technology
- Dalian 116023
- PR China
| | - Rui Nie
- Faculty of Environmental Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- PR China
| | - Shuli Liu
- Faculty of Environmental Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- PR China
| | - Zhengyang Duan
- Faculty of Environmental Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- PR China
| | - Wei Liu
- Faculty of Environmental Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- PR China
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18
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Chen G, Qiao C, Wang Y, Yao J. Synthesis of Magnetic Gelatin and Its Adsorption Property for Cr(VI). Ind Eng Chem Res 2014. [DOI: 10.1021/ie502709u] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guangxin Chen
- School of Materials Science
and Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
| | - Congde Qiao
- School of Materials Science
and Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
| | - Yang Wang
- School of Materials Science
and Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
| | - Jinshui Yao
- School of Materials Science
and Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
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