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Maddahzadeh‐Darini N, Ghorbanlo M, Mori M, Yahiro H. Thermo‐sensitive ionic hydrogels synthesis via post quaternization cross‐linking: A Highly Efficient Reusable Catalytic Thermo‐Responsive Nanoreactors. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Massomeh Ghorbanlo
- Department of Chemistry, Faculty of Science University of Zanjan Zanjan Iran
| | - Masami Mori
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering Ehime University Matsuyama Japan
| | - Hidenori Yahiro
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering Ehime University Matsuyama Japan
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2
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Zhang Q, Ren M, Liu Y, Zhang C, Guo Y, Song D. Fabrication of Brønsted acidic ionic liquids functionalized organosilica nanospheres for microwave-assisted fructose valorization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 818:151761. [PMID: 34801500 DOI: 10.1016/j.scitotenv.2021.151761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/13/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
A series of Brønsted acidic ionic liquids (BAILs) functionalized hollow organosilica nanospheres ([C3/4Im][OTs/OTf]-Si(Et)Si, C3/4 = Pr/BuSO3H) were synthesized by two steps. The process involved the preparation of hollow nanosphere supports via a toluene-swollen sol-gel co-condensation of 1,2-bis(trimethoxysilyl)ethane and 3-chloropropyltriethoxysilane in the presence of F127, and followed by a successive quaternary ammonization and protonation with imidazole, 1,3-propane/1,4-butane sultone and trifluoromethane sulfonic acid/p-toluenesulfonic acid. The adjustable acid property, hollow inner diameter (5-15 nm) and shell thickness (5-9 nm) of [C3/4Im][OTs/OTf]-Si(Et)Si are achieved by introducing different organic acids and controlling toluene concentration, respectively. The [C3/4Im][OTs/OTf]-Si(Et)Si were applied in selective conversion of fructose to 5-hydroxymethylfurfural (HMF) and 5-ethoxymethylfurfural (EMF) under microwave heating. Under the optimized conditions, the [C4Im][OTs]-Si(Et)Si3.0 nanospheres with the largest inner diameter and the smallest shell thickness exhibit the highest HMF yield (79.4%, 15 min) in fructose dehydration. And the [C3Im][OTf]-Si(Et)Si0.5 nanospheres with the highest acid strength possess the highest EMF yield (70.4%, 30 min) in fructose ethanolysis. The high Brønsted acid-site density and acid strength of [C3/4Im][OTs/OTf]-Si(Et)Si catalysts accompanied by high microwave heating energy lead to excellent dehydration/ethanolysis activity. The product selectivity strongly depended on the BAILs structures and morphological characteristics of the catalyst. More importantly, the [C3/4Im][OTs/OTf]-Si(Et)Si can be reused three times without changes in leaching of BAILs, due to strong covalent bond between BAILs and silicon/carbon framework. This work will provide a simple strategy of chemically bonded BAILs on suitable supports as efficient solid acids, and an approach of combining morphology-controlled solid acids with microwave-heating for catalytic conversion of biomass/derivatives to fuels and value-added chemicals.
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Affiliation(s)
- Qingqing Zhang
- School of Environment, Northeast Normal University, Changchun 130117, PR China; College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, PR China
| | - Miao Ren
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Yunqing Liu
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Chaoyue Zhang
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Yihang Guo
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Daiyu Song
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
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Dong Z, Wang Y, Wen D, Peng J, Zhao L, Zhai M. Recent progress in environmental applications of functional adsorbent prepared by radiation techniques: A review. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:126887. [PMID: 34763925 DOI: 10.1016/j.jhazmat.2021.126887] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/26/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Environmental pollution has been accelerated due to fast urbanization and industrialization, and thus hazardous contaminants removal and valuable metal recovery have become urgent. Adsorption has become a promising technology for water treatment because of its advantages of low-cost, good reusability, low energy consumption, high capacity and high selectivity. Particularly, radiation techniques including radiation induced graft copolymerization and radiation crosslinking have been found to be widely utilized to exploit adsorbents for water treatment. In this review, the current status and progress of adsorbents in environmental pollution in the past decade are summarized, including adsorbents (in form of particles, fiber and fabric, membrane, novel nanomaterials) synthesized by radiation induced graft copolymerization and hydrogel-based adsorbents fabricated by radiation crosslinking. Finally, further perspective on the development and challenge of adsorbents by radiation techniques is also suggested.
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Affiliation(s)
- Zhen Dong
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Yue Wang
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Di Wen
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Jing Peng
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Long Zhao
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China.
| | - Maolin Zhai
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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4
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Mallik AK, Moktadir MA, Rahman MA, Shahruzzaman M, Rahman MM. Progress in surface-modified silicas for Cr(VI) adsorption: A review. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127041. [PMID: 34488103 DOI: 10.1016/j.jhazmat.2021.127041] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Various toxic chemicals are discharging to the environment due to rapid industrialization and polluting soil, water, and air causing numerous diseases including life-threatening cancer. Among these pollutants, Cr(VI) or hexavalent chromium is one of the most carcinogenic and toxic contaminants hostile to human health and other living things. Therefore, along with other contaminants, the removal of Cr(VI) efficiently is very crucial to keep our environment neat and clean. On the other hand, silica has a lot of room to modify its surfaces as it is available with various sizes, shapes, pore sizes, surface areas etc. and the surface silanol groups are susceptible to design and prepare adsorbents for Cr(VI). This review emphases on the progress in the development of different types of silica-based adsorbents by modifying the surfaces of silica and their application for the removal of Cr(VI) from wastewater. Toxicity of Cr(VI), different silica surface modification processes, and removal techniques are also highlighted. The adsorption capacities of the surface-modified silica materials with other parameters are discussed extensively to understand how to select the best condition, silica and modifiers to achieve optimum removal performance. The adsorption mechanisms of various adsorbents are also discussed. Finally, future prospects are summarized and some suggestions are given to enhance the adsorption capacities of the surface-modified silica materials.
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Affiliation(s)
- Abul K Mallik
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Md Abdul Moktadir
- Institute of Leather Engineering and Technology, University of Dhaka, Dhaka 1209, Bangladesh.
| | - Md Ashiqur Rahman
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Md Shahruzzaman
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Mohammed Mizanur Rahman
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh; Institute of Leather Engineering and Technology, University of Dhaka, Dhaka 1209, Bangladesh.
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Cai K, Liu P, Chen P, Yang C, Liu F, Xie T, Zhao T. Imidazolium- and triazine-based ionic polymers as recyclable catalysts for efficient fixation of CO2 into cyclic carbonates. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101658] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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6
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Ma Z, Liu F, Liu N, Liu W, Tong M. Facile synthesis of sulfhydryl modified covalent organic frameworks for high efficient Hg(II) removal from water. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:124190. [PMID: 33535358 DOI: 10.1016/j.jhazmat.2020.124190] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 09/06/2020] [Accepted: 10/01/2020] [Indexed: 06/12/2023]
Abstract
In present study, we fabricated sulfhydryl modified covalent organic frameworks (COF-‒SH) through one-step reaction for the removal of Hg(II) from water. Different techniques were employed to characterize the fabricated COFs. We find that COF-‒SH exhibits great adsorption capacity (1283 mg/g) towards Hg(II), which is over 25 times higher than that of COF-1 without ‒-SH (53.1 mg/g). COF-SH has fast adsorption kinetics with the removal of 95% of 1000 μg/L Hg(II) within 30 min and over 99% after 2 h. Under a wide pH range (from 4 to 9), COF-‒SH exhibits high removal efficiencies (>99%). Moreover, COF-SH can selectively adsorb Hg(II) in the presence of other metal cations up to 1000 μg/L. X-ray photoelectron spectroscopy analysis reveals the presence of high affinity between thiol-S atom and Hg(II), which is also responsible for the high selectivity towards Hg(II) compared with other cations. Because of the transfer from enol form to keto form during synthesis, COF-SH exhibit remarkable stability during 10-cycle regeneration and reuse test. During utilization in wastewater extracted from Hg contaminated sludge, COF-‒SH displays high Hg(II) removal efficiency (>95%) under multiple coexisting ions conditions. The results suggest that COF-‒SH have great potential for Hg(II) removal from water under complex conditions.
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Affiliation(s)
- Zhiyao Ma
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Fuyang Liu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Nengsheng Liu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Wen Liu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Meiping Tong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China.
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7
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Wang Y, Han D, Zhong S, Li X, Su H, Chu T, Peng J, Zhao L, Li J, Zhai M. Quaternary phosphonium modified cellulose microsphere adsorbent for 99Tc decontamination with ultra-high selectivity. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123354. [PMID: 32653789 DOI: 10.1016/j.jhazmat.2020.123354] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/19/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
Decontamination of radioactive TcO4- from nuclear wastes is increasingly crucial for spent nuclear fuel reprocessing and environmental remediation. In the presence of a large excess of competitive anions, the selective separation of TcO4- is a major challenge for adsorbents. Herein, by using pre-radiation induced grafting polymerization, we have modified economical and environmentally friendly cellulose microspheres to obtain quaternary phosphonium decorated TcO4- adsorbents with an ultra-high selectivity, designated CMS-g-VBPPh3NO3. The prepared materials show adsorption capacities of 251 mg g-1 (for the surrogate Re). The selective factor against NO3- in 0.5 mol kg-1 HNO3 is as high as 168, showing excellent anion-exchange selectivity towards TcO4-. Moreover, CMS-g-VBPPh3NO3 was packed in column for treating simulated acidic waste solutions containing Cs, Sr, Eu, Zr, Ru, U and Re, and it showed excellent Re separation performance. Tracer amount of 99mTc experiments showed that comparing to ReO4-, CMS-g-VBPPh3NO3 has a better adsorption selectivity for TcO4-.
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Affiliation(s)
- Yue Wang
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Dong Han
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Shouchao Zhong
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xingxiao Li
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Hang Su
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Taiwei Chu
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jing Peng
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Long Zhao
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jiuqiang Li
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Maolin Zhai
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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8
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Highly selective removal of Hg(II) ions from aqueous solution using thiol-modified porous polyaminal-networked polymer. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117120] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Qu R, Ren Z, Li N, Zhang F, Zhang ZJ, Zhang H. Solvent-Free cycloaddition of carbon dioxide and epichlorohydrin catalyzed by surface-attached imidazolium-type poly(ionic liquid) monolayers. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.01.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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High efficiency biosorption of Uranium (VI) ions from solution by using hemp fibers functionalized with imidazole-4,5-dicarboxylic. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111739] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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11
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Fan L, Zhou A, Zhong L, Zhang Z, Liu Y. Selective and effective adsorption of Hg(II) from aqueous solution over wide pH range by thiol functionalized magnetic carbon nanotubes. CHEMOSPHERE 2019; 226:405-412. [PMID: 30947050 DOI: 10.1016/j.chemosphere.2019.03.154] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 05/27/2023]
Abstract
In this study, a novel adsorbent thiol functionalized magnetic carbon nanotubes (CNTs-SH@Fe3O4) was synthesized to overcome somewhat existing difficulties during the Hg(II) adsorption process, including low efficiency and selectivity, narrow feasible pH range and difficult to separate and reuse. The Hg(II) adsorption performance of CNTs-SH@Fe3O4 was evaluated using batch experiment and its physiochemical properties were investigated by characterization techniques. The batch experiment results showed that the prepared CNTs-SH@Fe3O4 maintained high Hg(II) adsorption efficiency (>98%) over wide pH range from 3 to 11. The selective adsorption of Hg(II) by CNTs-SH@Fe3O4 was achieved with the coexistence of Cu(II), Mg(II) or Zn(II) ions, in which adsorbate matrix Hg(II) removal efficiency of 81.39%, 89.36% and 95.52% was obtained, respectively. CNTs-SH@Fe3O4 kept high Hg(II) removal efficiency (>80%) and good magnetic property (Ms value > 21 emg g-1) after five cycles of adsorption/regeneration. The Hg(II) adsorption kinetics could be better described by pseudo-second-order kinetic model. Freundlich model showed higher correlation coefficient in adsorption isotherms study, and the calculated maximum adsorption capacity was 172.4 mg g-1. Thermodynamic study suggested that the adsorption process was exothermic in nature. Surface adsorption, complex adsorption and reduction adsorption were all contributed to the removal of Hg(II) using CNTs-SH@Fe3O4.
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Affiliation(s)
- Lu Fan
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China; Key Laboratory of Treatment for Special Wastewater of Sichuan Province Higher Education System, Sichuan, Chengdu, 610066, China
| | - Anlan Zhou
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Linrui Zhong
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Zheng Zhang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Yong Liu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China; Key Laboratory of Treatment for Special Wastewater of Sichuan Province Higher Education System, Sichuan, Chengdu, 610066, China.
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12
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Li N, Qu R, Han X, Lin W, Zhang H, Zhang ZJ. The Counterion Effect of Imidazolium-Type Poly(ionic liquid) Brushes on Carbon Dioxide Adsorption. Chempluschem 2019; 84:281-288. [PMID: 31950764 DOI: 10.1002/cplu.201800636] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/18/2019] [Indexed: 11/10/2022]
Abstract
Imidazolium-based poly(ionic liquid) brushes were attached to spherical silica nanoparticles bearing various functionalities by using a surface-initiated atom transfer radical polymerization ("grafting from" technique). A temperature-programmed desorption process was applied to evaluate and analyze the carbon dioxide adsorption performance of the synthesized polymer brushes. The confined structure of the surface-attached polymer chains facilitates gas transport and adsorption, leading to an enhanced adsorption capacity of carbon dioxide molecules compared with pure polymer powders. Temperature-programmed desorption profiles of the synthesized polymer brushes after carbon dioxide adsorption reveal that the substituent groups on the nitrogen atom at the 3-position of the imidazole ring, as well as the associated anions significantly affect the adsorption capacity of functionalized poly(ionic liquid) brushes. Of the tested samples, amine-functionalized poly(ionic liquid) brushes associated with hexafluorophosphate ions exhibit the highest carbon dioxide adsorption capacity of 2.56 mmol g-1 (112.64 mg g-1 ) at 25 °C under a carbon dioxide partial pressure of 0.2 bar.
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Affiliation(s)
- Na Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Nr. 122 Luoshi Rd., Wuhan, 430070, P. R. China
| | - Rong Qu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Nr. 122 Luoshi Rd., Wuhan, 430070, P. R. China
| | - Xiaoyu Han
- School of Chemical Engineering, University of Birmingham Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - Weiran Lin
- Division of Fine Chemicals, SINOPEC R&D Centers of Chemicals for EOR, Nr. 14 Beisanhuan Donglu, Bejing, 100013, P. R. China
| | - Haining Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Nr. 122 Luoshi Rd., Wuhan, 430070, P. R. China
| | - Zhenyu J Zhang
- School of Chemical Engineering, University of Birmingham Edgbaston, Birmingham, B15 2TT, United Kingdom
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13
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Lin G, Wang S, Zhang L, Hu T, Cheng S, Fu L, Xiong C. Enhanced and selective adsorption of Hg 2+ to a trace level using trithiocyanuric acid-functionalized corn bract. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 244:938-946. [PMID: 30469288 DOI: 10.1016/j.envpol.2018.08.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 06/09/2023]
Abstract
A novel trithiocyanuric acid-modified corn bract (TCA-CCB) was prepared, and its removal properties for Hg2+ were investigated. TCA-CCB showed a remarkable absorbability for Hg2+ in mixed ion solutions. Adsorption kinetics experiments indicated that the removal of Hg2+ on TCA-CCB was quick, with a removal rate of 99.07% within 5 min. In addition, the removal rate of Hg2+ exceeded 98% over all pH conditions. The adsorption process can be best described by pseudo-second-order kinetic and Hill isotherm models. The saturated adsorption capacity of TCA-CCB for Hg2+ was 390 mg/g. The TCA-CCB could efficiently adsorb Hg2+ from the simulated wastewater and reduce the Hg2+ concentration from 10 ppm to 12.35 ppb, which was lower than the greatest allowable value of 50 ppb and satisfied the emission standards required by the Chinese government. Moreover, the removal rate of Hg2+ was beyond 99% after three cycles. The results of the zeta potential and X-ray photoelectron spectroscopy (XPS) implied that the chelation and ion exchange between amino/thiol groups and Hg2+ played a significant role in the improvement of the adsorption properties. The corn bract modified by trithiocyanuric acid exhibits apparent advantages in the removal of Hg2+ from ppm to ppb due to its high selectivity, adsorption capacity and stability.
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Affiliation(s)
- Guo Lin
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China
| | - Shixing Wang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China.
| | - Libo Zhang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China.
| | - Tu Hu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China
| | - Song Cheng
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China
| | - Likang Fu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China
| | - Chao Xiong
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, PR China
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14
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Yi X, Kuang X, Zhang M, Dong X, Wu D, Wang D. Surface modification of polyimide fibers by novel alkaline-solvent hydrolysis to form high-performance fiber-reinforced composites. J Appl Polym Sci 2018. [DOI: 10.1002/app.46595] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaolin Yi
- Key Laboratory of Engineering Plastics, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Xiao Kuang
- Key Laboratory of Engineering Plastics, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Mengying Zhang
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Xia Dong
- Key Laboratory of Engineering Plastics, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Dezhen Wu
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Dujin Wang
- Key Laboratory of Engineering Plastics, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
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15
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Rapid recovery of rare earth elements in industrial wastewater by CuFe 2 O 4 synthesized from Cu sludge. J RARE EARTH 2018. [DOI: 10.1016/j.jre.2017.11.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Sorption of europium onto diethylenetriaminepentaacetic acid based silica dioxide: kinetics, isotherm, thermodynamics. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5547-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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WANG F, WANG W, ZHU Y, WANG A. Evaluation of Ce(III) and Gd(III) adsorption from aqueous solution using CTS- g -(AA- co -SS)/ISC hybrid hydrogel adsorbent. J RARE EARTH 2017. [DOI: 10.1016/s1002-0721(17)60966-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Xiao P, Han D, Zhai M, Xu L, Li H. Comparison with adsorption of Re (VII) by two different γ-radiation synthesized silica-grafting of vinylimidazole/4-vinylpyridine adsorbents. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:711-723. [PMID: 27889178 DOI: 10.1016/j.jhazmat.2016.11.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 11/15/2016] [Accepted: 11/16/2016] [Indexed: 06/06/2023]
Abstract
Two silica gel based adsorbents for Re (VII), i.e. SS-MPTS-VIMH and SS-MPTS-VPQ, were synthesised. Silica gel was used as the matrix for γ-radiation grafting, and the monomer of 1-vinyl imidazole (VIM) and 4-vinylpyridine (4-VP) was grafted onto the silica silanized by methacryloxy propyl trimethoxyl silane, respectively. A VIM concentration of 2molL-1 and an absorbed dose of 30kGy were the optimal grafting conditions for adsorbent SS-MPTS-VIM, and a 4-VP concentration of 4molL-1 and an absorbed dose of 40kGy were the optimal grafting conditions for adsorbent SS-MPTS-VP. At the certain condition, the grafting yield of SS-MPTS-VIM was 30.1% and that of SS-MPTS-VP was 21.0%. The adsorption capacity of adsorbent SS-MPTS-VIMH was 145.99mgg-1 and that of SS-MPTS-VPQ was 71.08mgg-1 according to the Langmuir model. The adsorbent SS-MPTS-VPQ had better adsorption properties of acid resistance and anti-interference than SS-MPTS-VIMH. Dynamic column experiments showed that protonated adsorbent SS-MTPS-VIMH could be recycled with good performance while quaternized adsorbent SS-MPTS-VPQ could not. The adsorbent SS-MPTS-VIMH belongs to weak anion exchange adsorbent and SS-MPTS-VPQ belongs to strong anion exchange adsorbent. This study paves a way to the synthesis and application of a novel silica base adsorbents for Re (VII).
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Affiliation(s)
- Pu Xiao
- Beijing Key Laboratory for Solid Waste Utilization and Management, Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871,China
| | - Dong Han
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Maolin Zhai
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ling Xu
- Beijing Key Laboratory for Solid Waste Utilization and Management, Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871,China.
| | - Huibo Li
- China Institute of Atomic Energy, P.O. Box 275-26, Beijing 102413, China.
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19
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Kolya H, Jana D, Sasmal D, Jana S, Tripathy T. Sulfated katira gum-graft-poly(N-vinyl imidazole): A useful scavenger of mercury(II) ions. J Appl Polym Sci 2016. [DOI: 10.1002/app.44565] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Haradhan Kolya
- Postgraduate Division of Chemistry, Midnapore College (Autonomous); Midnapore, Paschim Medinipur 721101 West Bengal India
| | - Debprasad Jana
- Postgraduate Division of Chemistry, Midnapore College (Autonomous); Midnapore, Paschim Medinipur 721101 West Bengal India
| | - Dinabandhu Sasmal
- Postgraduate Division of Chemistry, Midnapore College (Autonomous); Midnapore, Paschim Medinipur 721101 West Bengal India
| | - Subinoy Jana
- Postgraduate Division of Chemistry, Midnapore College (Autonomous); Midnapore, Paschim Medinipur 721101 West Bengal India
| | - Tridib Tripathy
- Postgraduate Division of Chemistry, Midnapore College (Autonomous); Midnapore, Paschim Medinipur 721101 West Bengal India
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20
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Luo X, Shen T, Ding L, Zhong W, Luo J, Luo S. Novel thymine-functionalized MIL-101 prepared by post-synthesis and enhanced removal of Hg(2+) from water. JOURNAL OF HAZARDOUS MATERIALS 2016; 306:313-322. [PMID: 26774986 DOI: 10.1016/j.jhazmat.2015.12.034] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 12/05/2015] [Accepted: 12/19/2015] [Indexed: 06/05/2023]
Abstract
A novel thymine-functionalized MIL-101 (MIL-101-Thymine) material was synthesized using a post-synthesis method to remove mercury at a high efficiency. MIL-101-Thymine was successfully prepared in this work and was confirmed by several characterization methods, such as (13)C nuclear magnetic resonance, X-ray diffraction, and infrared spectroscopy. The Hg(2+) adsorption agreed well with the Langmuir model, and the maximum adsorption capacity was 51.27mg/g. The adsorption rate fit with the pseudo-second-order kinetic model. Furthermore, MIL-101-Thymine exhibited excellent selectivity towards Hg(2+) over other cations, and the maximum value of the selective coefficient reached 947.34; this result is very likely due to the highly selective interactions of T-Hg(2+)-T in MIL-101-Thymine. The result of X-ray photoelectron spectroscopy also showed that Hg(2+) was coordinated with the N of thymine in MIL-101-Thymine. Moreover, the results of the thermogravimetric analysis and adsorption experiments showed that the Hg atom was two-coordinated with the thymine group. MIL-101-Thymine was used to remove trace Hg(2+) in real water samples, and satisfactory recoveries were obtained.
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Affiliation(s)
- Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China.
| | - Tingting Shen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Lin Ding
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Weiping Zhong
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Jianfeng Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Shenglian Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China.
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21
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Santos SSG, Pereira MBB, Almeida RKS, Souza AG, Fonseca MG, Jaber M. Silylation of leached-vermiculites following reaction with imidazole and copper sorption behavior. JOURNAL OF HAZARDOUS MATERIALS 2016; 306:406-418. [PMID: 26844783 DOI: 10.1016/j.jhazmat.2015.11.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 09/10/2015] [Accepted: 11/21/2015] [Indexed: 06/05/2023]
Abstract
Organically modified vermiculites were synthesized by previous silylation of three leached vermiculites, V0.3Cl, V0.5Cl and V0.8Cl, under anhydrous conditions following reaction with imidazole (Im), which acted as chelating agent for copper retention. Elemental analysis, X-ray diffraction, infrared spectroscopy, scanning electronic microscopy, transmission electron microscopy, (29)Si and (13)C NMR and nitrogen adsorption/desorption measurements were used to characterize pristine, leached and organofunctionalized solids. X-ray photoelectron spectroscopy (XPS) was used to evaluate the surface after copper sorption. Parameters such as contact time, pH and initial cation concentration for the adsorption of Cu(II) ions were investigated. The adsorption equilibrium data were fitted using the Langmuir isotherm model and the monolayer adsorption capacities were 2.38, 2.52 and 2.69mmolg(-1) for V0.5Cl-Im, V0.3Cl-Im and V0.8Cl-Im, respectively, at pH 6.0 and 298K for a time reaction of 80min. The sorption rates were described by pseudo-second-order kinetics. The chloropropyl imidazole vermiculites are promising adsorbents for the rapid removal of Cu(II) ions from aqueous solution.
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Affiliation(s)
- Saloana S G Santos
- Chemistry Department of Paraíba Federal University, João Pessoa, Paraíba, Brazil
| | - Mariana B B Pereira
- Chemistry Department of Paraíba Federal University, João Pessoa, Paraíba, Brazil
| | - Ramon K S Almeida
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13083-970 Campinas, São Paulo, Brazil
| | - Antônio G Souza
- Chemistry Department of Paraíba Federal University, João Pessoa, Paraíba, Brazil
| | - Maria G Fonseca
- Chemistry Department of Paraíba Federal University, João Pessoa, Paraíba, Brazil.
| | - M Jaber
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8220, Laboratoire d'archéologie moléculaire et structurale (LAMS), Boîte courrier 225, 4 place Jussieu, 75005 Paris, France
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22
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Niu Y, Yang J, Qu R, Gao Y, Du N, Chen H, Sun C, Wang W. Synthesis of Silica-Gel-Supported Sulfur-Capped PAMAM Dendrimers for Efficient Hg(II) Adsorption: Experimental and DFT Study. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b00172] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuzhong Niu
- School
of Chemistry and Materials
Science, Ludong University, Yantai 264025, P.R. China
| | - Jinyun Yang
- School
of Chemistry and Materials
Science, Ludong University, Yantai 264025, P.R. China
| | - Rongjun Qu
- School
of Chemistry and Materials
Science, Ludong University, Yantai 264025, P.R. China
| | - Yanhong Gao
- School
of Chemistry and Materials
Science, Ludong University, Yantai 264025, P.R. China
| | - Na Du
- School
of Chemistry and Materials
Science, Ludong University, Yantai 264025, P.R. China
| | - Hou Chen
- School
of Chemistry and Materials
Science, Ludong University, Yantai 264025, P.R. China
| | - Changmei Sun
- School
of Chemistry and Materials
Science, Ludong University, Yantai 264025, P.R. China
| | - Wenxiang Wang
- School
of Chemistry and Materials
Science, Ludong University, Yantai 264025, P.R. China
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23
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Shan C, Ma Z, Tong M, Ni J. Removal of Hg(II) by poly(1-vinylimidazole)-grafted Fe3O4@SiO2 magnetic nanoparticles. WATER RESEARCH 2015; 69:252-260. [PMID: 25497175 DOI: 10.1016/j.watres.2014.11.030] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 11/13/2014] [Accepted: 11/18/2014] [Indexed: 05/21/2023]
Abstract
Fe3O4@SiO2 magnetic nanoparticles modified by grafting poly(1-vinylimidazole) oligomer (FSPV) was fabricated as a novel adsorbent to remove Hg(II) from water. Fourier transform infra-red spectroscopy confirmed the successful grafting of oligomer, and thermogravimetric analysis showed FSPV had a high grafting yield with organic content of 22.8%. Transmission electron microscopy image displayed that FSPV particles were polymer-coated spheres with size of 10-20 nm. With saturation magnetization of 44.7 emu/g, FSPV particles could be easily separated from water with a simple magnetic process in 5 min. The Hg(II) adsorption capacity of FSPV was found to be 346 mg/g at pH 7 and 25 °C in 10 mM NaCl. Moreover, the removal of Hg(II) by FSPV was not obviously affected by solution pH (from 4 to 10) or humic acid (up to 8 mg/L as TOC). The presence of seven common ions including Na(+), K(+), Ca(2+), Mg(2+), Cl(-), NO3(-), and SO4(2-) (up to 100 mM ionic strength) slightly increased the adsorption of Hg(II) by FSPV. X-ray photoelectron spectroscopy analysis revealed that the N atom of the imidazole ring was responsible for the bonding with Hg(II), whereas the bonding of Hg with N did not result in cleavage of Hg-Cl bond in HgCl2 and HgClOH. The regeneration of Hg(II)-loaded FSPV could be achieved with 0.5 M HCl rapidly in 10 min, and the removal of Hg(II) maintained above 94% in five consecutive adsorption-desorption cycles. Therefore, FSPV could serve as a promising adsorbent for Hg(II) removal from water.
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Affiliation(s)
- Chao Shan
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Zhiyao Ma
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
| | - Meiping Tong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China.
| | - Jinren Ni
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China
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24
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Niu Y, Liu H, Qu R, Liang S, Chen H, Sun C, Cui Y. Preparation and Characterization of Thiourea-Containing Silica Gel Hybrid Materials for Hg(II) Adsorption. Ind Eng Chem Res 2015. [DOI: 10.1021/ie5046928] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuzhong Niu
- School
of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China
| | - Huanhuan Liu
- School
of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China
| | - Rongjun Qu
- School
of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China
| | - Shujie Liang
- School
of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China
| | - Hou Chen
- School
of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China
| | - Changmei Sun
- School
of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China
| | - Yuming Cui
- School
of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China
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25
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Tang X, Yao J, Tang P. Adsorption of Hg(II) Ions by 3-Mercaptopropyltriethoxysilane Modified Mesoporous Silica Based on Multiwalled Carbon Nanotubes: Equilibrium, Kinetic, and Thermodynamic Studies. SEP SCI TECHNOL 2014. [DOI: 10.1080/01496395.2014.969376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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26
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Niu Y, Qu R, Chen H, Mu L, Liu X, Wang T, Zhang Y, Sun C. Synthesis of silica gel supported salicylaldehyde modified PAMAM dendrimers for the effective removal of Hg(II) from aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2014; 278:267-78. [PMID: 24981678 DOI: 10.1016/j.jhazmat.2014.06.012] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 05/12/2014] [Accepted: 06/09/2014] [Indexed: 05/14/2023]
Abstract
A series of silica gel supported salicylaldehyde modified PAMAM dendrimers (SiO2-G0-SA ∼ SiO2-G2.0-SA) were synthesized and their structures were characterized by FTIR, XRD, SEM, TGA, and porous structure analysis. The feasibility of these adsorbents for the removal of Hg(II) from aqueous solution was first described and the adsorption mechanism was proposed. The adsorption was found to depend on solution pH, the generation number of salicylaldehyde modified PAMAM dendrimers, contact time, temperature, and initial concentration. Results showed that the optimal pH was about 6 and the adsorption capacity increased with the increasing of generation number. Density functional theory (DFT) method was used to investigate the coordination geometries and the chelating mechanism. Adsorption kinetics was found to follow the pseudo-second-order model with film diffusion process as rate controlling step. Adsorption isotherms revealed that adsorption capacities increased with the increasing of temperature. Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherm models were employed to analyze the equilibrium data. The adsorption can be well described by Langmuir isotherm model and took place by chemical mechanism. The thermodynamics properties indicated the adsorption processes were spontaneous and endothermic nature. The maximum adsorption capacity of SiO2-G0-SA, SiO2-G1.0-SA, and SiO2-G2.0-SA were 0.91, 1.52, and 1.81 mmol g(-1), respectively. The considerable higher adsorption capacity compared with other adsorbents indicates SiO2-G0-SA ∼ SiO2-G2.0-SA are favorable and useful for the uptake of Hg (II), and can be potentially used as promising adsorbents for the effective removal of Hg(II) from aqueous solution.
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Affiliation(s)
- Yuzhong Niu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China.
| | - Rongjun Qu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China.
| | - Hou Chen
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Lei Mu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Xiguang Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Ting Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Yue Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Changmei Sun
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
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27
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Zhang Y, Chen Y, Wang C, Wei Y. Immobilization of 5-aminopyridine-2-tetrazole on cross-linked polystyrene for the preparation of a new adsorbent to remove heavy metal ions from aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2014; 276:129-137. [PMID: 24875375 DOI: 10.1016/j.jhazmat.2014.05.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/17/2014] [Accepted: 05/09/2014] [Indexed: 06/03/2023]
Abstract
Novel 5-aminopyridine-2-tetrazole-functionalized polystyrene resin (APTZ-PS) was prepared by anchoring 5-aminopyridine-2-carbonitrile onto chloromethylated polystyrene beads (CMPS) and subsequently using the cyano-tetrazole conversion reaction. The APTZ-PS resin was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) and specific surface area and pore size analyses. The adsorption experiments of the prepared resin for heavy metal ions were conducted by batch methods. The effects of the experimental conditions, such as pH, contact time and initial metal ion concentration on the adsorption properties of Cu(II), Pb(II) and Hg(II) were investigated. The results showed that the resin possessed perfect adsorption capacities for Cu(II), Pb(II) and Hg(II), and the selectivity was different from the commonly used iminodiacetic acid-chelating resin. The sorption kinetics of the three metal ions followed the pseudo-second-order equation. The adsorption isotherms for Cu(II) and Pb(II) could be better fitted by the Langmuir model than the Freundlich model, whereas the Freundlich model was the best for the Hg(II) ion. Even after five consecutive adsorption-desorption cycles, no obvious change in the adsorption capacity of the resin was found, which implied that the APTZ-PS resin was suitable for the efficient removal of heavy metal ions from aqueous solution.
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Affiliation(s)
- Yu Zhang
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Youning Chen
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Chaozhan Wang
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Yinmao Wei
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China.
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28
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Faisal M, Ismail AA, Harraz FA, Bouzid H, Al-Sayari SA, Al-Hajry A. Highly selective colorimetric detection and preconcentration of Bi(III) ions by dithizone complexes anchored onto mesoporous TiO2. NANOSCALE RESEARCH LETTERS 2014; 9:62. [PMID: 24502680 PMCID: PMC3922967 DOI: 10.1186/1556-276x-9-62] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 01/29/2014] [Indexed: 06/03/2023]
Abstract
We successfully developed a single-step detection and removal unit for Bi(III) ions based on dithizone (DZ) anchored on mesoporous TiO2 with rapid colorometric response and high selectivity for the first time. [(DZ)3-Bi] complex is easily separated and collected by mesoporous TiO2 as adsorbent and preconcentrator without any color change of the produced complex onto the surface of mesoporous TiO2 (TiO2-[(DZ)3-Bi]) at different Bi(III) concentrations. This is because highly potent mesoporous TiO2 architecture provides proficient channeling or movement of Bi(III) ions for efficient binding of metal ion, and the simultaneous excellent adsorbing nature of mesoporous TiO2 provides an extra plane for the removal of metal ions.
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Affiliation(s)
- Mohd Faisal
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
| | - Adel A Ismail
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Nanostructured Materials and Nanotechnology Division, Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Helwan, Cairo 11421, Egypt
| | - Farid A Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Nanostructured Materials and Nanotechnology Division, Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Helwan, Cairo 11421, Egypt
| | - Houcine Bouzid
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Physics, College of Science and Arts, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
| | - Saleh A Al-Sayari
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- College of Science and Arts-Sharoura, Najran University, Sharoura, Saudi Arabia
| | - Ali Al-Hajry
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Physics, College of Science and Arts, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
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29
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D'Acunzo F, Capitani D, Masci G, Cherubini C, Ursini O. Polymerization, grafting and adsorption in the presence of inorganic substrates: Thermal polymerization of styrene with untreated and γ-irradiated silica gel as a case study. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.10.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Krishna Kumar AS, Kalidhasan S, Rajesh V, Rajesh N. Adsorptive Demercuration by Virtue of an Appealing Interaction Involving Biopolymer Cellulose and Mercaptobenzothiazole. Ind Eng Chem Res 2013. [DOI: 10.1021/ie400921p] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Santhana Krishna Kumar
- Department of Chemistry, ‡Department of Biological
Sciences, Birla Institute of Technology and Science, Pilani-Hyderabad Campus, Jawahar Nagar,
Shameerpet Mandal, R.R. Dist-500 078(AP), India
| | - S. Kalidhasan
- Department of Chemistry, ‡Department of Biological
Sciences, Birla Institute of Technology and Science, Pilani-Hyderabad Campus, Jawahar Nagar,
Shameerpet Mandal, R.R. Dist-500 078(AP), India
| | - Vidya Rajesh
- Department of Chemistry, ‡Department of Biological
Sciences, Birla Institute of Technology and Science, Pilani-Hyderabad Campus, Jawahar Nagar,
Shameerpet Mandal, R.R. Dist-500 078(AP), India
| | - N. Rajesh
- Department of Chemistry, ‡Department of Biological
Sciences, Birla Institute of Technology and Science, Pilani-Hyderabad Campus, Jawahar Nagar,
Shameerpet Mandal, R.R. Dist-500 078(AP), India
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