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Removal of Cu (II) Via chitosan-conjugated iodate porous adsorbent: Kinetics, thermodynamics, and exploration of real wastewater sample. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
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Zhou Y, Zeng Z, Guo Y, Zheng X. Selective adsorption of Hg(ii) with diatomite-based mesoporous materials functionalized by pyrrole-thiophene copolymers: condition optimization, application and mechanism. RSC Adv 2022; 12:33160-33174. [PMID: 36425157 PMCID: PMC9673902 DOI: 10.1039/d2ra05938j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/03/2022] [Indexed: 11/29/2023] Open
Abstract
A novel diatomite-based mesoporous material of MCM-41/co-(PPy-Tp) was prepared with MCM-41 as carrier and functionalized with the copolymer of pyrrole and thiophene. The physicochemical characteristics of the as-prepared materials were characterized by various characterization means. The removal behaviour of Hg(ii) was adequately investigated via series of single factor experiments and some vital influence factors were optimized via response surface methodology method. The results exhibit that diatomite-based materials MCM-41/co-(PPy-Tp) has an optimal adsorption capability of 537.15 mg g-1 towards Hg(ii) at pH = 7.1. The removal process of Hg(ii) onto MCM-41/co-(PPy-Tp) is controlled by monolayer chemisorption based on the fitting results of pseudo-second-order kinetic and Langmuir models. In addition, the adsorption of Hg(ii) ions onto MCM-41/co-(PPy-Tp) is mainly completed through forming a stable complex with N or S atoms in MCM-41/co-(PPy-Tp) by electrostatic attraction and chelation. The as-developed MCM-41/co-(PPy-Tp) displays excellent recyclability and stabilization, has obviously selective adsorption for Hg(ii) in the treatment of actual electroplating wastewater. Diatomite-based mesoporous material functionalized by the copolymer of pyrrole and thiophene exhibits promising application prospect.
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Affiliation(s)
- Yu Zhou
- Department of Municipal Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Zheng Zeng
- Department of Municipal Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Yongfu Guo
- Department of Municipal Engineering, Suzhou University of Science and Technology Suzhou 215009 China
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment Suzhou 215009 Jiangsu China
| | - Xinyu Zheng
- Department of Municipal Engineering, Suzhou University of Science and Technology Suzhou 215009 China
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Yu HZ, Xu QQ, Cheng XL, Xue YQ, Ma HY, Ding XX, Liu Q, Li SS, Zhang YX. Hollow aluminosilicate microspheres with increased surface hydroxyl groups by etching method for electrochemical detection of Hg(II). Microchem J 2022. [DOI: 10.1016/j.microc.2022.107610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Inorganofunctionalization of Ti(IV) and Zr(IV) on the MCM-41 Surface and its Interaction with a Mixed Valence Complex to use as Isoniazid Sensing. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02025-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Janus R, Wądrzyk M, Lewandowski M, Natkański P, Łątka P, Kuśtrowski P. Understanding porous structure of SBA-15 upon pseudomorphic transformation into MCM-41: Non-direct investigation by carbon replication. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.08.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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El-Zahhar AA, Idris AM. Mercury(II) decontamination using a newly synthesized poly(acrylonitrile-acrylic acid)/ammonium molybdophosphate composite exchanger. TOXIN REV 2020. [DOI: 10.1080/15569543.2020.1824191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Adel A. El-Zahhar
- Faculty of Science, Department of Chemistry, King Khalid University, Abha, Saudi Arabia
- Nuclear Chemistry Department, Hot Laboratory Center, Atomic Energy Authority, Cairo, Egypt
| | - Abubakr M. Idris
- Faculty of Science, Department of Chemistry, King Khalid University, Abha, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
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Tian T, Bai Z, Wang B, Zhao S, Zhang Y. Facile fabrication of polyacrylic acid functionalized carboxymethyl chitosan microspheres for selective and efficient removal of Ni(II) from multicomponent wastewater. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124676] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Fu Y, Sun Y, Chen Z, Ying S, Wang J, Hu J. Functionalized magnetic mesoporous silica/poly(m-aminothiophenol) nanocomposite for Hg(II) rapid uptake and high catalytic activity of spent Hg(II) adsorbent. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 691:664-674. [PMID: 31325865 DOI: 10.1016/j.scitotenv.2019.07.153] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/10/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
Currently, magnetic mesoporous silica nanospheres have been employed widely as adsorbents due to their large surface area and easy recovery. Herein, the functionalized magnetic mesoporous silica/organic polymers nanocomposite (MMSP) was fabricated by the grafted poly(m-aminothiophenol) embedded the aminated magnetic mesoporous silica nanocomposite based on Fe3O4 magnetic core, which was shelled by mesoporous silica and further modified by (3-aminopropyl) triethoxysilane. The adsorption properties of as-developed MMSP were systematically explored by altering the experimental parameters. The results indicated that the adsorption capacity and removal percentage of the MMSP could reach 243.83 mg/g and 97.53% within only 10 min at pH 4.0, and the coexisting ions had no significant effect on the selective Hg(II) ions removal from aqueous solutions, meanwhile, the adsorbent recovered by a magnet still exhibited good adsorption performance after recycled 5 times. In addition, by analyzing experimental data, the adsorption process of Hg(II) ions belonged to spontaneous exothermic adsorption, and the possible adsorption mechanisms were proposed based on the pseudo-second-order model and Langmuir model. After adsorption study, the waste material adsorbed Hg(II) was developed as an efficient catalyst for transformation of phenylacetylene to acetophenone with yield of 97.06%. In this study, we designed an efficient and selective material for Hg(II) ions remove and provided a treatment of the post-adsorbed mercury adsorbent by converting the waste into an excellent catalyst, which reduced the economic and environmental impact from conventional adsorption techniques.
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Affiliation(s)
- Yong Fu
- Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, PR China
| | - Yu Sun
- Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, PR China
| | - Zhangpei Chen
- Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, PR China
| | - Shaoming Ying
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, College of Chemistry and Materials, Ningde Normal University, PR China; Fujian Province University Engineering Research Center of Mindong She Medicine, College of Chemistry and Materials, Ningde Normal University, PR China
| | - Jiwei Wang
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, College of Chemistry and Materials, Ningde Normal University, PR China; Fujian Province University Engineering Research Center of Mindong She Medicine, College of Chemistry and Materials, Ningde Normal University, PR China.
| | - Jianshe Hu
- Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, PR China.
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Mackiewicz M, Stojek Z, Karbarz M. Synthesis of cross-linked poly(acrylic acid) nanogels in an aqueous environment using precipitation polymerization: unusually high volume change. ROYAL SOCIETY OPEN SCIENCE 2019; 6:190981. [PMID: 31827839 PMCID: PMC6894567 DOI: 10.1098/rsos.190981] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 10/04/2019] [Indexed: 05/30/2023]
Abstract
For the first time, by using precipitation polymerization in an aqueous solution, a cross-linked poly(acrylic acid)-(pAA) nanogel was synthesized. pAA was synthesized and cross-linked with N,N'-methylenebisacrylamide (BIS) at 70°C in an acidified environment (pH 2) and containing 0.7 M NaCl using potassium persulfate as the initiator. Ionized pAA was soluble in water. The use of sodium chloride at low pH caused a decrease in the solubility of pAA and led to its precipitation and formation of cross-linked pAA nanogel. By using electron microscopies and light scattering techniques, the morphology, pH sensitivity and zeta potential of the obtained p(AA-BIS) nanogel were evaluated. The polymerization in an aqueous environment resulted in a very big swelling/shrinking coefficient (of approx. 4000) in response to pH and exhibited an unusually high negative zeta potential (of approx. -130 mV). These properties make the nanogel a very interesting sorbent and a construction material.
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Affiliation(s)
| | | | - Marcin Karbarz
- Faculty of Chemistry, Biological and Chemical Research Center, University of Warsaw, 101 Żwirki i Wigury Avenue, 02-089 Warsaw, Poland
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Rapid and selective removal of Hg(II) ions and high catalytic performance of the spent adsorbent based on functionalized mesoporous silica/poly(m-aminothiophenol) nanocomposite. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu J, Chen Y, Han T, Cheng M, Zhang W, Long J, Fu X. A biomimetic SiO 2@chitosan composite as highly-efficient adsorbent for removing heavy metal ions in drinking water. CHEMOSPHERE 2019; 214:738-742. [PMID: 30293027 DOI: 10.1016/j.chemosphere.2018.09.172] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 09/19/2018] [Accepted: 09/29/2018] [Indexed: 06/08/2023]
Abstract
Highly efficient adsorbents for drinking water purification are demanded since the contaminants are generally in a low concentration which makes it difficult for conventional adsorbents. Herein, we present a novel biomimetic SiO2@chitosan composite as adsorbent with a high adsorption capability towards heavy metal ions including As(V) and Hg(II). The hollow leaf-like SiO2 scaffold within the adsorbent has a stable chemical property; while on the surface SiO2, the chitosan nanoparticle provide a large amount of active sites such as amino and hydroxyl groups for adsorbing heavy metal ions. The special SiO2 structure also prevents the agglomeration and loss of chitosan, which enables the efficient contact between the functional groups of chitosan and heavy metal ions. The SiO2@chitosan composite exhibits maximum adsorption capacities of 204.1 and 198.6 mg g-1 towards Hg(II) and As(V), respectively. In addition, the removal efficiency reaches over 60% within 2 min. The adsorption performance enables the presented biomimetic adsorbent suitable for adsorbing low-concentration heavy metal ions, especially possessing a promising potential for drinking water purification.
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Affiliation(s)
- Jinyun Liu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, PR China.
| | - Yu Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, PR China
| | - Tianli Han
- College of Chemistry and Material Engineering, Chaohu University, Chaohu, Anhui 238000, PR China
| | - Mengying Cheng
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, PR China
| | - Wen Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, PR China
| | - Jiawei Long
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, PR China
| | - Xiangqian Fu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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