1
|
Liang H, Zhao M, Wang S, Wang D, Gou J, Bai Y, Shen M, Wang J, Cheng Y, Ge N, Zhao Y, Zeng J, Sun L, Xu H. Novel Sustained Release Azithromycin Resinate Fabricated by One-Pot Ion-exchange Performed in Hydro-alcoholic Solution. AAPS PharmSciTech 2024; 25:226. [PMID: 39327374 DOI: 10.1208/s12249-024-02947-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Accepted: 09/16/2024] [Indexed: 09/28/2024] Open
Abstract
Drug-resin complexes usually form in the aqueous phase. For poorly water-soluble drugs, low drug loading limits the use of resin in drug formulation. In this study, we used a new method to prepare azithromycin resinates, improving the drug loading rate, shortening the preparation time and simplifying the process. We used hydro-alcoholic solution as the drug loading solvent and the ion exchange resin as the carrier, and this method enabled the resin to adsorb both the retardant and the drug. The sustained release effect of retardant Eudragit RL, RS100 was analyzed. Drug loading efficiency, release profiles, morphology, physicochemical characterization and pharmacokinetic study were assessed. Preparation of drug resinate by batch method resulted in 14% higher drug loading of azithromycin and 3.5 h shorter loading time as compared to pure water for hydroalcoholic solution as drug loading solvent. Raman mappings demonstrated that the retardant with higher molecular weight was more likely to adsorb to the outer layer of the resin compared to the drug. The in vitro release and in vivo pharmacokinetic study of azithromycin resinates showed a sustained release profile with few gastrointestinal adverse effects. Therefore, the addition of ethanol not only improved the efficiency of drug loading but also showed sustained-release effect with one-pot preparation of azithromycin resinates.
Collapse
Affiliation(s)
- Hongyu Liang
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Meihui Zhao
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Shaoning Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Da Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Jingxin Gou
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Yanjie Bai
- Department of Stomatology, People's Hospital of Liaoning Province, Shenyang, 110016, People's Republic of China
| | - Mingyue Shen
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Junfeng Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Yujie Cheng
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Ning Ge
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Yi Zhao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Jie Zeng
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China
| | - Lu Sun
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China.
| | - Hui Xu
- Department of Pharmaceutical Sciences, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, Liaoning, China.
| |
Collapse
|
2
|
Hou Y, Li Y, Wang Y, Zhu Z, Tang S, Zhang J, Pan Q, Hu T. Goethite Enhances Cr(VI) Reduction by S. oneidensis MR-1 under Different Conditions: Mechanistic Insights. Microorganisms 2024; 12:754. [PMID: 38674698 PMCID: PMC11052132 DOI: 10.3390/microorganisms12040754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/29/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024] Open
Abstract
Chromium (Cr) contamination, widely present in the environment, poses a significant threat to both ecology and human health. Microbial remediation technology has become a hot topic in the field of heavy metal remediation due to its advantages, such as environmental protection, low cost, and high efficiency. This paper focused on using various characterization and analysis methods to investigate the bioreduction effect and mechanism of microorganisms on Cr(VI) under various influencing factors. The main contents and conclusions were as follows: Shewanella oneidensis MR-1 was selected as the target strain for studying its reduction of Cr(VI) at different inoculation amounts, temperatures, pH values, time intervals, etc. The results indicated that S. oneidensis MR-1 exhibited an optimal reduction effect on Cr(VI) at pH 7 and a temperature of 35 °C. Additionally, electron shuttles (ESs), including humic acid (HA) and 9,10-antraquinone-2,6-disulfonate (AQDS), were introduced into the degradation system to improve the reduction efficiency of S. oneidensis MR-1. Upon adding goethite further, S. oneidensis MR-1 significantly enhanced its reducing ability by converting Fe(III) minerals to Fe(II) and reducing Cr(VI) to Cr(III) during electron transfer.
Collapse
Affiliation(s)
- Yu Hou
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Yanhong Li
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Yaru Wang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Zongqiang Zhu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Shen Tang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541004, China
| | - Jie Zhang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Qiaodong Pan
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Ting Hu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| |
Collapse
|
3
|
Ghani AA, Devarayapalli KC, Kim B, Lim Y, Kim G, Jang J, Lee DS. Sodium-alginate-laden MXene and MOF systems and their composite hydrogel beads for batch and fixed-bed adsorption of naproxen with electrochemical regeneration. Carbohydr Polym 2023; 318:121098. [PMID: 37479431 DOI: 10.1016/j.carbpol.2023.121098] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 07/23/2023]
Abstract
Sodium alginate (SA)-laden two-dimensional (2D) Ti3C2Tx MXene (MX) and MIL-101(Fe) (a type of metal-organic framework (MOF)) composites were prepared and used for the removal of naproxen (NPX), following the adsorption and electrochemical regeneration processes. The fixed-bed adsorption column studies were also conducted to study the process of removal of NPX by hydrogels. The number of interactions via which the MX-embedded SA (MX@SA) could adsorb NPX was higher than the number of pathways associated with NPX adsorption on the MIL-101(Fe)-embedded SA (MIL-101(Fe)@SA), and the MX and MIL-101(Fe) composite embedded SA (MX/MIL-101(Fe)@SA). The optimum parameters for the electrochemical regeneration process were determined: charge passed and current density values were 169.3 C g-1 and 10 mA cm-2, respectively, for MX@SA, and the charge passed and current density values were 16.7 C g-1 and 5 mA cm-2, respectively, for both MIL-101(Fe)@SA and MX/MIL-101(Fe)@SA. These parameters enabled excellent regeneration, consistent over multiple adsorption and electrochemical regeneration cycles. The mechanism for the regeneration of the materials was proposed that the regeneration of MX@SA and MIL-101(Fe)@SA involved the indirect electrooxidation process in the presence of OH radicals, and the regeneration of MX/MIL-101(Fe)@SA involved the indirect oxidation process in the presence of active chlorine species.
Collapse
Affiliation(s)
- Ahsan Abdul Ghani
- Department of Chemical Engineering, University of Karachi, Main University Road, Karachi 75270, Sindh, Pakistan
| | | | - Bolam Kim
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Youngsu Lim
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Gyuhyeon Kim
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Jiseon Jang
- R&D Institute of Radioactive Wastes, Korea Radioactive Waste Agency, 174 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Dae Sung Lee
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| |
Collapse
|
4
|
Shan B, Hao R, Zhang J, Ye Y, Li J, Xu H, Lu A. Exploring the mechanism of enhanced Cr(VI) removal by Lysinibacillus cavernae microcapsules loaded with synthetic nano-hydroxyapatite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:106571-106584. [PMID: 37730979 DOI: 10.1007/s11356-023-29910-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/12/2023] [Indexed: 09/22/2023]
Abstract
In this study, nano-scale hydroxyapatite (HAP) powder was successfully synthesized from waste eggshells and combined with Lysinibacillus cavernae CR-2 to form bio-microcapsules, which facilitated the enhanced removal of Cr(VI) from wastewater. The effects of various parameters, such as bio-microcapsule dosage, HAP dosage, and initial Cr(VI) concentration on Cr(VI) removal, were investigated. Under different treatment conditions, the Cr(VI) removal followed the order of LC@HAP (90.95%) > LC (78.15%) > Free-LC (75.61%) > HAP (6.56%) > NM (0.23%) at the Cr(VI) initial concentration of 50 mg L-1. Relative to other reaction systems, the LC@HAP treatment exhibited a considerable decrease in total Cr content in the solution, with removal rates surpassing 70%. Additionally, the bio-microcapsules maintained significant biological activity after reacting with Cr(VI). Further characterization using SEM, FTIR, XPS, and XRD revealed that the Cr(VI) removal mechanisms by bio-microcapsules primarily involved biological reduction and HAP adsorption. The adsorption of Cr(III) by HAP predominantly occurred through electrostatic interactions and surface complexation, accompanied by an ion exchange process between Cr(III) and Ca(II). Hence, bio-microcapsules, created by combining L. cavernae with HAP, represent a promising emerging material for the enhanced removal of Cr(VI) pollutants from wastewater.
Collapse
Affiliation(s)
- Bing Shan
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China
| | - Ruixia Hao
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China.
| | - Junman Zhang
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China
| | - Yubo Ye
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China
| | - Jiani Li
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China
| | - Hui Xu
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China
| | - Anhuai Lu
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China
| |
Collapse
|
5
|
Islam MM, Mohana AA, Rahman MA, Rahman M, Naidu R, Rahman MM. A Comprehensive Review of the Current Progress of Chromium Removal Methods from Aqueous Solution. TOXICS 2023; 11:toxics11030252. [PMID: 36977017 PMCID: PMC10053122 DOI: 10.3390/toxics11030252] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 06/01/2023]
Abstract
Chromium (Cr) exists in aqueous solution as trivalent (Cr3+) and hexavalent (Cr6+) forms. Cr3+ is an essential trace element while Cr6+ is a dangerous and carcinogenic element, which is of great concern globally due to its extensive applications in various industrial processes such as textiles, manufacturing of inks, dyes, paints, and pigments, electroplating, stainless steel, leather, tanning, and wood preservation, among others. Cr3+ in wastewater can be transformed into Cr6+ when it enters the environment. Therefore, research on Cr remediation from water has attracted much attention recently. A number of methods such as adsorption, electrochemical treatment, physico-chemical methods, biological removal, and membrane filtration have been devised for efficient Cr removal from water. This review comprehensively demonstrated the Cr removal technologies in the literature to date. The advantages and disadvantages of Cr removal methods were also described. Future research directions are suggested and provide the application of adsorbents for Cr removal from waters.
Collapse
Affiliation(s)
- Md. Monjurul Islam
- Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Anika Amir Mohana
- Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Md. Aminur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- Zonal Laboratory, Department of Public Health Engineering (DPHE), Jashore 7400, Bangladesh
| | - Mahbubur Rahman
- Chittagong University of Engineering and Technology, Faculty of Civil Engineering, Chattogram 4349, Bangladesh
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- CRC for Contamination Assessment and Remediation of the Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- CRC for Contamination Assessment and Remediation of the Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- Department of General Educational Development, Faculty of Science & Information Technology, Daffodil International University, Dhaka 1207, Bangladesh
| |
Collapse
|
6
|
Dragan ES, Humelnicu D, Dinu MV. Sustainable Multi-Network Cationic Cryogels for High-Efficiency Removal of Hazardous Oxyanions from Aqueous Solutions. Polymers (Basel) 2023; 15:polym15040885. [PMID: 36850169 PMCID: PMC9966014 DOI: 10.3390/polym15040885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
It is still a challenge to develop advanced materials able to simultaneously remove more than one pollutant. Exclusive cationic composite double- and triple-network cryogels, with adequate sustainability in the removal of Cr2O72- and H2PO4- oxyanions, were developed in this work starting from single-network (SN) sponges. Chitosan (CS), as the only polycation originating from renewable resources, and poly(N,N-dimethylaminoethylmethacrylate) (PDMAEMA) and polyethyleneimine (PEI), as synthetic polycations, were employed to construct multi-network cationic composite cryogels. The properties of the composites were tailored by the cross-linking degree of the first network (SN5 and SN20, which means CS with 5 or 20 mole % of glutaraldehyde, respectively) and by the order of the successive networks. FTIR, SEM-EDX, equilibrium water content and compressive tests were used in the exhaustive characterization of these polymeric composites. The sorption performances towards Cr2O72- and H2PO4- anions were evaluated in batch mode. The pseudo-first-order, pseudo-second-order (PSO) and Elovich kinetics models, and the Langmuir, Freundlich and Sips isotherm models were used to interpret the experimental results. The adsorption data were the best fitted by the PSO kinetic model and by the Sips isotherm model, indicating that the sorption mechanism was mainly controlled by chemisorption, irrespective of the structure and number of networks. The maximum sorption capacity for both oxyanions increased with the increase in the number of networks, the highest values being found for the multi-network sponges having SN5 cryogel as the first network. In binary systems, all sorbents preferred Cr2O72- ions, the selectivity coefficient being the highest for TN sponges. The high sorption capacity and remarkable reusability, with only a 4-6% drop in the sorption capacity after five sorption-desorption cycles, recommend these composite cryogels in the removal of two of the most dangerous pollutants represented by Cr2O72- and H2PO4-.
Collapse
Affiliation(s)
- Ecaterina Stela Dragan
- Department of Functional Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
- Correspondence: ; Tel.: +40-232217454; Fax: +40-232211299
| | - Doina Humelnicu
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iasi, Carol I Bd. 11, 700506 Iasi, Romania
| | - Maria Valentina Dinu
- Department of Functional Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
| |
Collapse
|
7
|
Liu Q, Yang Q, Zhang Q, Lv F, Cheng A, Liu H, Ma S, Wang L, Liu Q. Mussel-inspired encapsulation of poly(pyrogallol-tetraethylenepentamine) resin into mesoporous MSU-H matrix and its rapid removal feature for Congo red from aquatic environment. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
|
8
|
Liu B, Xin YN, Zou J, Khoso FM, Liu YP, Jiang XY, Peng S, Yu JG. Removal of Chromium Species by Adsorption: Fundamental Principles, Newly Developed Adsorbents and Future Perspectives. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020639. [PMID: 36677697 PMCID: PMC9861687 DOI: 10.3390/molecules28020639] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/24/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023]
Abstract
Emerging chromium (Cr) species have attracted increasing concern. A majority of Cr species, especially hexavalent chromium (Cr(VI)), could lead to lethal effects on human beings, animals, and aquatic lives even at low concentrations. One of the conventional water-treatment methodologies, adsorption, could remove these toxic Cr species efficiently. Additionally, adsorption possesses many advantages, such as being cost-saving, easy to implement, highly efficient and facile to design. Previous research has shown that the application of different adsorbents, such as carbon nanotubes (carbon nanotubes (CNTs) and graphene oxide (GO) and its derivatives), activated carbons (ACs), biochars (BCs), metal-based composites, polymers and others, is being used for Cr species removal from contaminated water and wastewater. The research progress and application of adsorption for Cr removal in recent years are reviewed, the mechanisms of adsorption are also discussed and the development trend of Cr treatment by adsorption is proposed.
Collapse
Affiliation(s)
- Bo Liu
- State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, China
| | - Ya-Nan Xin
- State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, China
| | - Jiao Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China
| | - Fazal Muhammad Khoso
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yi-Ping Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Xin-Yu Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Sui Peng
- State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, China
- Correspondence: (S.P.); (J.-G.Y.); Tel./Fax: +86-731-88879616 (J.-G.Y.)
| | - Jin-Gang Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- Correspondence: (S.P.); (J.-G.Y.); Tel./Fax: +86-731-88879616 (J.-G.Y.)
| |
Collapse
|
9
|
Xu X, Li R, Chen J, Yang J, Wu Y, Liu J, Huang YG, Chen S, Ye X, Wang W. Enhancing the Phosphate Adsorption of a Polyallylamine Resin in Alkaline Environments by Lanthanum Oxalate Modification. ACS OMEGA 2022; 7:19743-19753. [PMID: 35721969 PMCID: PMC9202294 DOI: 10.1021/acsomega.2c01520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Sevelamer hydrochloride (SH), originally developed as an oral pharmaceutical for controlling blood phosphate levels, is a polyallylamine resin that could be used in water treatments. Although it binds phosphates effectively, its adsorption capacity suffers from a significant loss at high pH. Here, we modify SH with lanthanum oxalate to improve its phosphate adsorption in alkaline environments. With less than 6.00 wt% in La content, the composite adsorbent (SH-1C-1La) exhibits an adsorption capacity of 109.3 mg P g-1 at pH 8.0 and 100.2 mg P g-1 at pH 10.0, demonstrating significant enhancement from the original SH (86.3 mg P g-1 at pH 8.0 and 69.4 mg P g-1 at pH 10.0). Besides its high adsorption capacity and rapid adsorption kinetics, SH-1C-1La is capable of maintaining more than 78% of its capacity after four regeneration cycles, showing good durability in long-term applications. Zeta-potential measurements and XPS analysis reveal that the lanthanum oxalate species increase the surface potential to enhance the electrostatic adsorption while introducing chemical binding sites for phosphate ions. Both factors lead to the improved adsorption properties. The modification by lanthanum oxalate species might provide a new alternative for improving the phosphate adsorption properties of anion-exchange resins.
Collapse
Affiliation(s)
- Xiaofeng Xu
- College
of Chemistry and Materials Science, Fujian
Normal University, Fuzhou 350002, China
- CAS
Key Laboratory of Design and Assembly of Functional Nanostructures,
and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter,
Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen
Institute of Rare Earth Materials, Haixi
Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Ruonan Li
- CAS
Key Laboratory of Design and Assembly of Functional Nanostructures,
and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter,
Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen
Institute of Rare Earth Materials, Haixi
Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jinglin Chen
- Key
Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jie Yang
- College
of Chemistry and Materials Science, Fujian
Normal University, Fuzhou 350002, China
- CAS
Key Laboratory of Design and Assembly of Functional Nanostructures,
and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter,
Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen
Institute of Rare Earth Materials, Haixi
Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yukai Wu
- Key
Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Junrui Liu
- College
of Chemistry and Materials Science, Fujian
Normal University, Fuzhou 350002, China
- CAS
Key Laboratory of Design and Assembly of Functional Nanostructures,
and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter,
Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen
Institute of Rare Earth Materials, Haixi
Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - You-gui Huang
- CAS
Key Laboratory of Design and Assembly of Functional Nanostructures,
and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter,
Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen
Institute of Rare Earth Materials, Haixi
Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Shaohua Chen
- Key
Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Xin Ye
- Key
Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Wei Wang
- CAS
Key Laboratory of Design and Assembly of Functional Nanostructures,
and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter,
Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen
Institute of Rare Earth Materials, Haixi
Institute, Chinese Academy of Sciences, Xiamen 361021, China
| |
Collapse
|
10
|
Guo F, Xi X, Ma L, Nie Z. Novel Styrene-Based Polyamine Sorbent for Efficient Selective Separation of Molybdenum. ACS OMEGA 2022; 7:18229-18237. [PMID: 35694529 PMCID: PMC9178608 DOI: 10.1021/acsomega.1c06257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 01/12/2022] [Indexed: 06/15/2023]
Abstract
Tungsten (W) and molybdenum (Mo) are important strategic resources but the two coexist in both primary ore and waste. Before a single metal product is obtained, it is often necessary to separate the two. In this work, we reported two new polyamine resins (D301@PA and D301@TA), which can be obtained by an assembled amine (primary amine or tertiary amine) and traditional D301 resin by the dipping method. Then, the sorption experiments with the amine resins were carried out, and the selectivity and sorption capacity of the two new polyamine resins for MoS4 2- have been significantly improved. Among them, D301@TA showed the highest sorption capacity of 414 mg·g-1 and a separation factor of 108. Finally, the sorption mechanism can be inferred through scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) analysis, and X-ray photoemission spectroscopy (XPS); the Cl- ions in the amine resin and the MoS4 2- ions were subjected to ion exchange. This work provides a green and efficient approach for separating tungsten and molybdenum.
Collapse
Affiliation(s)
- Fan Guo
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology, Beijing 100124, China
| | - Xiaoli Xi
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology, Beijing 100124, China
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Liwen Ma
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology, Beijing 100124, China
- National Engineering Laboratory for Industrial Big-Data Application Technology, Beijing University of Technology, Beijing 100124, China
| | - Zuoren Nie
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology, Beijing 100124, China
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
- National Engineering Laboratory for Industrial Big-Data Application Technology, Beijing University of Technology, Beijing 100124, China
| |
Collapse
|
11
|
Wang S, Yin W, Bu H, Zeng W, Li P, Zheng X, Chiang P, Wu J. A facile modification of cation exchange resin by nano-sized goethite for enhanced Cr(VI) removal from water. ENVIRONMENTAL TECHNOLOGY 2022; 43:1833-1842. [PMID: 33225859 DOI: 10.1080/09593330.2020.1855257] [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: 05/05/2020] [Accepted: 11/14/2020] [Indexed: 06/11/2023]
Abstract
A novel macroporous strong acidic cation exchange resin (D001) modified by nano-sized goethite (nFeOOH@D001) was fabricated by using a facile ethanol dispersion and impregnation method, and its efficiency for Cr(VI) removal was tested thereafter. Due to the dispersing effect of ethanol, FeOOH particles of 20-150 nm were coated on the D001 surfaces. The nFeOOH@D001 obtained a Cr(VI) removal efficiency and capacity of 80.2% and 7.4 mg/g respectively, 5 times and 8 times higher than that of the pristine D001. The Cr(VI) removal by nFeOOH@D001 followed the pseudo second-order kinetics and the Langmuir adsorption model. Column experiments also demonstrated that the nFeOOH@D001 exhibited a much better ability to remove Cr(VI) as compared to the D001. Additionally, the nFeOOH@D001 showed a potential for reusability and renewability. The adsorbed nFeOOH@D001 could be easily desorbed by 0.1 M acetic acid and a reuse efficiency of 92.7% could be maintained after 4 desorption-adsorption cycles. The used nFeOOH@D001 could be eluted by 0.1 M HCl to remove nFeOOH, and the renewed D001 could be recoated by nFeOOH and achieved a regeneration rate of 97.8% for Cr(VI) removal. The above results indicated that nano-sized goethite modification is a promising method to endow D001 with the ability to remove Cr(VI) from water.
Collapse
Affiliation(s)
- Siqiao Wang
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Weizhao Yin
- School of Environment, Jinan University, Guangzhou, People's Republic of China
| | - Huaitian Bu
- Department of Materials and Nanotechnology, SINTEF Industry, Oslo, Norway
| | - Weilong Zeng
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Ping Li
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Xiangyu Zheng
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Penchi Chiang
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Jinhua Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
- The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou, People's Republic of China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou, People's Republic of China
| |
Collapse
|
12
|
Abidli A, Huang Y, Ben Rejeb Z, Zaoui A, Park CB. Sustainable and efficient technologies for removal and recovery of toxic and valuable metals from wastewater: Recent progress, challenges, and future perspectives. CHEMOSPHERE 2022; 292:133102. [PMID: 34914948 DOI: 10.1016/j.chemosphere.2021.133102] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 11/08/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
Due to their numerous effects on human health and the natural environment, water contamination with heavy metals and metalloids, caused by their extensive use in various technologies and industrial applications, continues to be a huge ecological issue that needs to be urgently tackled. Additionally, within the circular economy management framework, the recovery and recycling of metals-based waste as high value-added products (VAPs) is of great interest, owing to their high cost and the continuous depletion of their reserves and natural sources. This paper reviews the state-of-the-art technologies developed for the removal and recovery of metal pollutants from wastewater by providing an in-depth understanding of their remediation mechanisms, while analyzing and critically discussing the recent key advances regarding these treatment methods, their practical implementation and integration, as well as evaluating their advantages and remaining limitations. Herein, various treatment techniques are covered, including adsorption, reduction/oxidation, ion exchange, membrane separation technologies, solvents extraction, chemical precipitation/co-precipitation, coagulation-flocculation, flotation, and bioremediation. A particular emphasis is placed on full recovery of the captured metal pollutants in various reusable forms as metal-based VAPs, mainly as solid precipitates, which is a powerful tool that offers substantial enhancement of the remediation processes' sustainability and cost-effectiveness. At the end, we have identified some prospective research directions for future work on this topic, while presenting some recommendations that can promote sustainability and economic feasibility of the existing treatment technologies.
Collapse
Affiliation(s)
- Abdelnasser Abidli
- Microcellular Plastics Manufacturing Laboratory (MPML), Department of Mechanical and Industrial Engineering, Faculty of Applied Science and Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, M5S 3G8, Canada; Institute for Water Innovation (IWI), Faculty of Applied Science and Engineering, University of Toronto, 55 St. George Street, Toronto, Ontario, M5S 1A4, Canada.
| | - Yifeng Huang
- Microcellular Plastics Manufacturing Laboratory (MPML), Department of Mechanical and Industrial Engineering, Faculty of Applied Science and Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, M5S 3G8, Canada; Institute for Water Innovation (IWI), Faculty of Applied Science and Engineering, University of Toronto, 55 St. George Street, Toronto, Ontario, M5S 1A4, Canada; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Zeineb Ben Rejeb
- Microcellular Plastics Manufacturing Laboratory (MPML), Department of Mechanical and Industrial Engineering, Faculty of Applied Science and Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, M5S 3G8, Canada
| | - Aniss Zaoui
- Microcellular Plastics Manufacturing Laboratory (MPML), Department of Mechanical and Industrial Engineering, Faculty of Applied Science and Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, M5S 3G8, Canada
| | - Chul B Park
- Microcellular Plastics Manufacturing Laboratory (MPML), Department of Mechanical and Industrial Engineering, Faculty of Applied Science and Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, M5S 3G8, Canada; Institute for Water Innovation (IWI), Faculty of Applied Science and Engineering, University of Toronto, 55 St. George Street, Toronto, Ontario, M5S 1A4, Canada.
| |
Collapse
|
13
|
Dong H, Zhang L, Shao L, Wu Z, Zhan P, Zhou X, Chen J. Versatile Strategy for the Preparation of Woody Biochar with Oxygen-Rich Groups and Enhanced Porosity for Highly Efficient Cr(VI) Removal. ACS OMEGA 2022; 7:863-874. [PMID: 35036752 PMCID: PMC8756790 DOI: 10.1021/acsomega.1c05506] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/17/2021] [Indexed: 05/25/2023]
Abstract
Biochar is widely used to remove hexavalent chromium [Cr(VI)] from wastewater through adsorption, which is recognized as a facile, cost-efficient, and high-selectivity approach. In this study, a versatile strategy that combines delignification with subsequent carbonization and KOH activation is proposed to prepare a novel woody biochar from waste poplar sawdust. By virtue of the unique multilayered and honeycomb porous structure induced by delignification and activation processes, the resultant activated carbonized delignified wood (ACDW) exhibits a high specific surface area of 970.52 m2 g-1 with increasing meso- and micropores and abundant oxygen-containing functional groups. As a benign adsorbent for the uptake of Cr(VI) in wastewater, ACDW delivers a remarkable adsorption capacity of 294.86 mg g-1 in maximum, which is significantly superior to that of unmodified counterparts and other reported biochars. Besides, the adsorption behaviors fit better with the Langmuir isotherm, the pseudo-second-order kinetic model, and the adsorption diffusion model in batch experiments. Based on the results, we put forward the conceivable adsorption mechanism that the synergistic contributions of the capillary force, electrostatic attraction, chemical complexation, and reduction action facilitate the Cr(VI) capture by ACDW.
Collapse
Affiliation(s)
- Hongping Dong
- College
of Materials Science and Engineering, Central
South University of Forestry and Technology, Changsha 410004, China
- Ministry
of Forestry Bioethanol Research Center, Changsha 410004, China
- Hunan
International Joint Laboratory of Woody Biomass Conversion, Changsha 410004, China
| | - Lin Zhang
- College
of Materials Science and Engineering, Central
South University of Forestry and Technology, Changsha 410004, China
- Ministry
of Forestry Bioethanol Research Center, Changsha 410004, China
- Hunan
International Joint Laboratory of Woody Biomass Conversion, Changsha 410004, China
| | - Lishu Shao
- College
of Materials Science and Engineering, Central
South University of Forestry and Technology, Changsha 410004, China
- Ministry
of Forestry Bioethanol Research Center, Changsha 410004, China
- Hunan
International Joint Laboratory of Woody Biomass Conversion, Changsha 410004, China
| | - Zhiping Wu
- College
of Materials Science and Engineering, Central
South University of Forestry and Technology, Changsha 410004, China
- Ministry
of Forestry Bioethanol Research Center, Changsha 410004, China
- Hunan
International Joint Laboratory of Woody Biomass Conversion, Changsha 410004, China
| | - Peng Zhan
- College
of Materials Science and Engineering, Central
South University of Forestry and Technology, Changsha 410004, China
- Ministry
of Forestry Bioethanol Research Center, Changsha 410004, China
- Hunan
International Joint Laboratory of Woody Biomass Conversion, Changsha 410004, China
| | - Xiaoxun Zhou
- College
of Horticulture, Hunan Agricultural University, Changsha 410128, China
| | - Jienan Chen
- College
of Materials Science and Engineering, Central
South University of Forestry and Technology, Changsha 410004, China
- Ministry
of Forestry Bioethanol Research Center, Changsha 410004, China
- Hunan
International Joint Laboratory of Woody Biomass Conversion, Changsha 410004, China
| |
Collapse
|
14
|
Kumar PS, Gayathri R, Rathi BS. A review on adsorptive separation of toxic metals from aquatic system using biochar produced from agro-waste. CHEMOSPHERE 2021; 285:131438. [PMID: 34252804 DOI: 10.1016/j.chemosphere.2021.131438] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/29/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
Water is a basic and significant asset for living beings. Water assets are progressively diminishing due to huge populace development, industrial activities, urbanization and rural exercises. Few heavy metals include zinc, copper, lead, nickel, cadmium and so forth can easily transfer into the water system either direct or indirect activities of electroplating, mining, tannery, painting, fertilizer industries and so forth. The different treatment techniques have been utilized to eliminate the heavy metals from aquatic system, which includes coagulation/flocculation, precipitation, membrane filtration, oxidation, flotation, ion exchange, photo catalysis and adsorption. The adsorption technique is a better option than other techniques because it can eliminate heavy metals even at lower metal ions concentration, simplicity and better regeneration behavior. Agricultural wastes are low-cost biosorbent and typically containing cellulose have the ability to absorb a variety of contaminants. It is important to note that almost all agro wastes are no longer used in their original form but are instead processed in a variety of techniques to improve the adsorption capacity of the substance. The wide range of adsorption capacities for agro waste materials were observed and almost more than 99% removal of toxic pollutants from aquatic systems were achieved using modified agro-waste materials. The present review aims at the water pollution due to heavy metals, as well as various heavy metal removal treatment procedures. The primary objectives of this research is to include an overview of adsorption and various agriculture based adsorbents and its comparison in heavy metal removal.
Collapse
Affiliation(s)
- P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - R Gayathri
- Tamilnadu Pollution Control Board, Guindy, Chennai, 600032, India
| | - B Senthil Rathi
- Department of Chemical Engineering, St. Joseph's College of Engineering, Chennai, 600119, India
| |
Collapse
|
15
|
Guo F, Xi X, Ma L, Nie Z, Nie Z. Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin. RSC Adv 2021; 11:29939-29947. [PMID: 35480290 PMCID: PMC9040875 DOI: 10.1039/d1ra04458c] [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: 06/09/2021] [Accepted: 08/16/2021] [Indexed: 11/21/2022] Open
Abstract
The separation of molybdenum (Mo) from tungstate solution is a bottleneck problem in tungsten (W) metallurgy, and it hinders the development of high-purity tungsten materials. In this research, a modified D301 resin was used to adsorb and separate molybdenum from tungstate solution. The maximum sorption capacity (Q e) of modified D301 for MoS4 2- was found to be 428 mg g-1 and the separation coefficient (β) was 108.9 when the contact time was 4 h and the reaction temperature was 25 °C and the pH value of the tungstate solution was 7.2. The sorption process conforms to Langmuir isotherm models and the quasi-second-order kinetic model. The sorption mechanism was also discussed, which was a single layered spontaneous sorption process. Theoretical calculations infer bonding behavior between the N atom on the resin and the S atom on the MoS4 2- molecule. The sorption energy is -7.67 eV, which indicated that the sorption process is stable chemical sorption. The desorption experiment showed that more than 90% molybdenum could be desorbed from the loaded resin when the concentration of sodium hydroxide solution was 5 w%. Finally, after three-stage sorption-desorption, almost all molybdenum in the solution was adsorbed, achieving better separation of tungsten and molybdenum.
Collapse
Affiliation(s)
- Fan Guo
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology Beijing 100124 China +86-10-67391536 +86-10-67391536
| | - Xiaoli Xi
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology Beijing 100124 China +86-10-67391536 +86-10-67391536
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology Beijing 100124 China
| | - Liwen Ma
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology Beijing 100124 China +86-10-67391536 +86-10-67391536
- National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology Beijing 100124 China
| | - Zhuanghua Nie
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology Beijing 100124 China +86-10-67391536 +86-10-67391536
| | - Zuoren Nie
- Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Beijing University of Technology Beijing 100124 China +86-10-67391536 +86-10-67391536
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology Beijing 100124 China
- National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology Beijing 100124 China
| |
Collapse
|
16
|
Ifthikar J, Ibran Shahib I, Jawad A, Gendy EA, Wang S, Wu B, Chen Z, Chen Z. The excursion covered for the elimination of chromate by exploring the coordination mechanisms between chromium species and various functional groups. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
17
|
Huang R, Zhang Q, Yao H, Lu X, Zhou Q, Yan D. Ion-Exchange Resins for Efficient Removal of Colorants in Bis(hydroxyethyl) Terephthalate. ACS OMEGA 2021; 6:12351-12360. [PMID: 34056387 PMCID: PMC8154176 DOI: 10.1021/acsomega.1c01477] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 04/23/2021] [Indexed: 05/05/2023]
Abstract
Bis(hydroxyethyl) terephthalate (BHET) obtained from waste poly(ethylene terephthalate) (PET) glycolysis often have undesirable colors, leading to an increased cost in the decoloration of the product and limiting the industrialization of chemical recycling. In this work, eight types of ion-exchange resins were used for BHET decoloration, and resin D201 showed an outstanding performance not only in the decoloration efficiency but also in the retention rate of the product. Under the optimal conditions, the removal rate of the colorant and the retention efficiency of BHET were over 99% and 95%, respectively. D201 showed outstanding reusability with five successive cycles, and the decolored BHET and its r-PET showed good chromaticity. Furthermore, the investigations of adsorption isotherms, kinetics, and thermodynamics have been conducted, which indicated that the decoloration process was a natural endothermic reaction. Adsorption interactions between the colorant and resin were extensively examined by various characterizations, revealing that electrostatic force, π-π interactions, and hydrogen bonding were the dominant adsorption mechanisms.
Collapse
Affiliation(s)
- Rong Huang
- Beijing
Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory
of Green Process and Engineering, State Key Laboratory of Multiphase
Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School
of Chemical and Engineering, University
of Chinese Academy of Sciences, Beijing 100049, P. R.
China
| | - Qi Zhang
- Beijing
Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory
of Green Process and Engineering, State Key Laboratory of Multiphase
Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School
of Chemical and Engineering, University
of Chinese Academy of Sciences, Beijing 100049, P. R.
China
| | - Haoyu Yao
- Beijing
Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory
of Green Process and Engineering, State Key Laboratory of Multiphase
Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School
of Chemical and Engineering, University
of Chinese Academy of Sciences, Beijing 100049, P. R.
China
| | - Xingmei Lu
- Beijing
Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory
of Green Process and Engineering, State Key Laboratory of Multiphase
Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School
of Chemical and Engineering, University
of Chinese Academy of Sciences, Beijing 100049, P. R.
China
- Sino
Danish College, University of Chinese Academy
of Sciences, Beijing 100049, P. R. China
- Innovation
Academy for Green Manufacture, Chinese Academy
of Sciences, Beijing 100190, P. R. China
- E-mail: . Phone/Fax: +86-010-82544800
| | - Qing Zhou
- Beijing
Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory
of Green Process and Engineering, State Key Laboratory of Multiphase
Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School
of Chemical and Engineering, University
of Chinese Academy of Sciences, Beijing 100049, P. R.
China
- Innovation
Academy for Green Manufacture, Chinese Academy
of Sciences, Beijing 100190, P. R. China
- E-mail: . Phone/Fax: +86-010-82544800
| | - Dongxia Yan
- Beijing
Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory
of Green Process and Engineering, State Key Laboratory of Multiphase
Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
| |
Collapse
|
18
|
Amaku JF, Ngwu CM, Ogundare SA, Akpomie KG, Edozie OI, Conradie J. Thermodynamics, kinetics and isothermal studies of chromium (VI) biosorption onto Detarium senegalense stem bark extract coated shale and the regeneration potentials. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 23:1486-1496. [PMID: 33969765 DOI: 10.1080/15226514.2021.1913991] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A low-cost adsorbent (Detarium senegalense stem bark extract coated shale (DSMS)) comprising pristine shale (PSH) coated with D. senegalense stem bark extract was prepared and utilized for the adsorption of Cr(VI). The DSMS and PSH were characterized by the SEM, XRD, FTIR, EDX, TGA, and BET. The batch adsorption experiment results showed that DSMS exhibited an excellent ability to adsorb chromium with a maximum removal occurring at pH 2, dosage of 0.05 g and 180 min contact time. The adsorption process was best described by the pseudo-second-order for DSMS and Elovich model for PSH which depicts chemisorption as the major mechanism responsible for the uptake of Cr(VI) onto the adsorbents. Langmuir model provided the best fit to the isotherm analysis on both materials. The maximum adsorption capacity of DSMS and PSH were 64.98 mg g-1 and 29.97 mg g-1 respectively. The thermodynamics revealed that the adsorption of Cr(VI) was feasible, endothermic and entropy driven. Furthermore, after five cycles of reuse, both DSMS and PSH demonstrated effective regeneration and reusability for Cr(VI) uptake. The structural properties, reusability, and high adsorption capabilities of DSMS indicate that they could be used as low-cost adsorbents in large-scale Cr(VI) wastewater treatment. Novelty statement Plant extracts are packed with a variety of polyphenolic compounds, such as aldehydes, alcohols, carboxylics, ethers, ketones, and phenols which contains several functionalities useful in the adsorption of toxic metals. Despite this, research on the use of plant extracts in the modification of adsorbent materials for enhanced adsorption is rare. This study reports for the first time the use of Detarium senegalense stem bark extract coated shale adsorbent for the efficient uptake of Cr(VI) ion.
Collapse
Affiliation(s)
- James Friday Amaku
- Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Nigeria
| | - Comfort M Ngwu
- Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Nigeria
| | - Segun A Ogundare
- Chemical Sciences Department, Olabisi Onabanjo University, Ago-Iwoye, Nigeria
| | - Kovo G Akpomie
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | | | - Jeanet Conradie
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
| |
Collapse
|
19
|
Jia D, Cai H, Duan Y, Xia J, Guo J. Efficient adsorption to hexavalent chromium by iron oxalate modified D301: Characterization, performance and mechanisms. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.06.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
20
|
Velusamy S, Roy A, Sundaram S, Kumar Mallick T. A Review on Heavy Metal Ions and Containing Dyes Removal Through Graphene Oxide-Based Adsorption Strategies for Textile Wastewater Treatment. CHEM REC 2021; 21:1570-1610. [PMID: 33539046 DOI: 10.1002/tcr.202000153] [Citation(s) in RCA: 171] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 11/09/2022]
Abstract
Textile wastewater heavy metal pollution has become a severe environmental problem worldwide. Metal ion inclusion in a dye molecule exhibits a bathochromic shift producing deeper but duller shades, which provides excellent colouration. The ejection of a massive volume of wastewater containing heavy metal ions such as Cr (VI), Pb (II), Cd (II) and Zn (II) and metal-containing dyes are an unavoidable consequence because the textile industry consumes large quantities of water and all these chemicals cannot be combined entirely with fibres during the dyeing process. These high concentrations of chemicals in effluents interfere with the natural water resources, cause severe toxicological implications on the environment with a dramatic impact on human health. This article reviewed the various metal-containing dye types and their heavy metal ions pollution from entryway to the wastewater, which then briefly explored the effects on human health and the environment. Graphene-based absorbers, specially graphene oxide (GO) benefits from an ordered structured, high specific surface area, and flexible surface functionalization options, which are indispensable to realize a high performance of heavy metal ion removal. These exceptional adsorption properties of graphene-based materials support a position of ubiquity in our everyday lives. The collective representation of the textile wastewater's effective remediation methods is discussed and focused on the GO-based adsorption methods. Understanding the critical impact regarding the GO-based materials established adsorption portfolio for heavy metal ions removal are also discussed. Various heavy-metal ions and their pollutant effect, ways to remove such heavy metal ions and role of graphene-based adsorbent including their demand, perspective, limitation, and relative scopes are discussed elaborately in the review.
Collapse
Affiliation(s)
- Sasireka Velusamy
- Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, U.K
| | - Anurag Roy
- Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, U.K
| | - Senthilarasu Sundaram
- Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, U.K
| | - Tapas Kumar Mallick
- Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, U.K
| |
Collapse
|
21
|
Xiao K, Yang H, He J, Yang B, Zhu C. Application of central composite design to reveal resin deterioration during the removal of hexavalent chromium from wastewater. ENVIRONMENTAL TECHNOLOGY 2021; 42:298-305. [PMID: 31154957 DOI: 10.1080/09593330.2019.1626915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
As a strong oxidant, aqueous Cr(VI) possibly oxidizes the polymer resin and weakens resin adsorption property during Cr(VI) removal from solutions by ion exchange. In the present study, to minimize the resin oxidation, central composite design approach based on response surface methodology was employed with different variables (Cr(VI) concentration of 100-1000 mg L-1, temperature of 293-333 K, pH of 1-7, and reaction time of 0-120 min) using a strong anionic resin (D202). The pH and reaction time had the most significant effect on resin oxidation, followed by Cr(VI) concentration. The temperature had a comparatively less significant effect on resin oxidation. The minimal Cr(VI) reduction efficiency (0.4%) was achieved with a Cr(VI) concentration of 251.5 mg L-1, temperature of 323.1 K, pH of 6.2 and reaction time of 52.5 min. Based upon a long-term operation and Fourier transform infrared rays analyses, the oxidation pathway of D202 resin was proposed. The rupture of the C-N bond led to the disappearance of the nitrogen-containing functional groups, which resulted in a significant decrease of resin exchange capacity.
Collapse
Affiliation(s)
- Ke Xiao
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
| | - Hao Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
| | - Jing He
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
| | - Bo Yang
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
| | - Caizhen Zhu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, People's Republic of China
| |
Collapse
|
22
|
Li Y, Peng L, Guo J, Chen Z. An Enhanced Reduction-Adsorption Strategy for Cr(VI): Fabrication and Application of L-Cysteine-doped Carbon@Polypyrrole with a Core/Shell Composite Structure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11508-11516. [PMID: 32787056 DOI: 10.1021/acs.langmuir.0c01849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Reclamation and recycling of heavy metal ions can offer environmental protection and sustainable development. Here, we report the preparation of L-cysteine (L-cys)-doped glucose carbon sphere (GCS)@polypyrrole (PPy) composites (GCS@PPy/L-cys). The adsorption performance and mechanism of GCS@PPy/L-cys toward Cr(VI) from water were investigated in detail. The chromate enrichment on GCS@PPy is significantly facilitated by doping with L-cys, which prevents the oxidative collapse of the structure. This approach leads to many reduction-adsorption sites that reduce the highly hazardous Cr(VI) into less toxic Cr(III). More significantly, the composite can be reused to fabricate supercapacitors that avoid secondary pollution. This strategy offers high-efficiency treatment and sustainable utilization of hypervalent metals in water.
Collapse
Affiliation(s)
- Yinhui Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, PR China
- National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Tianjin 300130, PR China
| | - Longfei Peng
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, PR China
| | - Jun Guo
- Key Laboratory of Membrane and Membrane Process, China National Offshore Oil Corporation Tianjin Chemical Research & Design Institute, Tianjin 300131, PR China
| | - Zan Chen
- Key Laboratory of Membrane and Membrane Process, China National Offshore Oil Corporation Tianjin Chemical Research & Design Institute, Tianjin 300131, PR China
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| |
Collapse
|
23
|
Peng X, Yan Z, Hu L, Zhang R, Liu S, Wang A, Yu X, Chen L. Adsorption behavior of hexavalent chromium in aqueous solution by polyvinylimidazole modified cellulose. Int J Biol Macromol 2020; 155:1184-1193. [DOI: 10.1016/j.ijbiomac.2019.11.086] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 10/16/2019] [Accepted: 11/09/2019] [Indexed: 12/07/2022]
|
24
|
Yu C, Zhang Y, Fang Y, Tan Y, Dai K, Liu S, Huang Q. Shewanella oneidensis MR-1 impregnated Ca-alginate capsule for efficient Cr(VI) reduction and Cr(III) adsorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:16745-16753. [PMID: 32130632 DOI: 10.1007/s11356-019-06832-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Shewanella oneidensis MR-1 (MR-1)-impregnated alginate capsules with 3D porous structure were prepared through cation crossing-linking and was used for the Cr(VI) reduction and removal. After being encapsulated by alginate, the endurance of the MR-1 was largely enhanced under conditions of high Cr(VI) concentrations (up to 4 mM) and low pH (pH 5). The Cr(VI) reduction over the MR-1-impregnated alginate capsules could be fitted by pseudo first-order kinetic model. With the Cr(VI) initial concentration increasing from 1 to 4 mM, the first-order rate constant for the encapsulated MR-1 (kcapsules) and free cells (kcells) fell by 26.3% and 82.4%, respectively. At pH 5, the kcapsules value was 0.19 h- 1, which was about 3.7 times higher than kcells. Moreover, the encapsulated MR-1 held 90.5% of the Cr(VI) reduction ability after 15 days of resting time, while the free MR-1 held 19.7%. After bioreduction, 73.6% of total chromium was adsorbed on the MR-1 impregnated Ca-alginate capsules. XPS results showed 85% of the adsorbed chromium was Cr(III). The mechanism for chromium removal over the MR-1-impregnated Ca-alginate capsules was proposed with the following steps: (1) Cr(VI) was bioreduced via the encapsulated MR-1; (2) the reduced soluble Cr(III) was adsorbed by alginate selectively. In the study, the Ca-alginate shell of the cabbage-like MR-1 impregnated capsules could be a shelter for encapsulated MR-1 to endure unfavorable conditions (e.g., low pH and high concentration of Cr(VI)) and immobilize the soluble chromium. Considering the obtained capsules derived from biomolecules were environment-friendly, the MR-1-impregnated Ca-alginate capsules were potential for the application in the remediation of environmental pollution. Graphical abstract.
Collapse
Affiliation(s)
- Cheng Yu
- College of Food Science and Technology, Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yi Zhang
- College of Resources and Environment, Huazhong Agricultural University, P R, Wuhan, 430070, China
| | - Yu Fang
- College of Resources and Environment, Huazhong Agricultural University, P R, Wuhan, 430070, China
| | - Yujie Tan
- College of Resources and Environment, Huazhong Agricultural University, P R, Wuhan, 430070, China
| | - Ke Dai
- College of Resources and Environment, Huazhong Agricultural University, P R, Wuhan, 430070, China.
| | - Shilin Liu
- College of Food Science and Technology, Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Qiaoyun Huang
- College of Resources and Environment, Huazhong Agricultural University, P R, Wuhan, 430070, China
| |
Collapse
|
25
|
Han S, Zang Y, Gao Y, Yue Q, Zhang P, Kong W, Jin B, Xu X, Gao B. Co-monomer polymer anion exchange resin for removing Cr(VI) contaminants: Adsorption kinetics, mechanism and performance. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 709:136002. [PMID: 31905586 DOI: 10.1016/j.scitotenv.2019.136002] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/05/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
Modified anion exchange resin (EDE-D301) was synthesized by mixing monomers: epichlorohydrin (ECH), dimethylamine (DMA), ethylenediamine (EDA) with the weakly alkaline anion exchange resin D301 through in-situ polymerization method. Adsorption performance of EDE-D301 for removing Cr(VI) contaminants was investigated in batch and column systems. Physicochemical properties of the anion exchange resins were characterized to determine the adsorption mechanism and regeneration ability. Characteristic results revealed that EDE-D301 showed enhanced surface area, positive charge and contents of N and Cl elements, indicating that the modifying reagents of monomers were successfully polymerized in the resin. The experimental adsorption data fitted well to the pseudo-second-order kinetic model and the Langmuir isotherm model. The fixed-bed experiments showed that the exhaustion time increased with increasing the bed depth, and decreased with increasing the flowrate and influent concentration. Adsorption capacity for Cr(VI) onto EDE-D301 was determined at a maximum level of 298 mg·g-1, and remained at 93% after four consecutive cycles. FTIR and XPS analysis indicated that the ion exchange and complexation were responsible for the Cr(VI) adsorption.
Collapse
Affiliation(s)
- Songlin Han
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yanan Zang
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yue Gao
- School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China.
| | - Qinyan Yue
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Ping Zhang
- Shandong Urban Construction Vocational College, Jinan 250103, China
| | - Wenjia Kong
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Bo Jin
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005,Australia
| | - Xing Xu
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Baoyu Gao
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| |
Collapse
|
26
|
Dragan ES, Humelnicu D. Contribution of Cross-Linker and Silica Morphology on Cr(VI) Sorption Performances of Organic Anion Exchangers Embedded into Silica Pores. Molecules 2020; 25:E1249. [PMID: 32164286 PMCID: PMC7179461 DOI: 10.3390/molecules25051249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/05/2020] [Accepted: 03/08/2020] [Indexed: 12/12/2022] Open
Abstract
Removal of Cr(VI) from the environment represents a stringent issue because of its tremendous effects on living organisms. In this context, design of sorbents with high sorption capacity for Cr(VI) is getting a strong need. For this purpose, poly(vinylbenzyl chloride), impregnated into porous silica (PSi), was cross-linked with either N,N,N',N'-tetramethyl-1,2-ethylenediamine (TEMED) or N,N,N',N'-tetramethyl-1,3-propanediamine, followed by the reaction of the free -CH2Cl groups with N,N-diethyl-2-hydroxyethylamine to generate strong base anion exchangers (ANEX) inside the pores. The PSi/ANEX composite sorbents were deeply characterized by FTIR spectroscopy, SEM-energy dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), and water uptake. The sorption performances of composites against Cr(VI) were investigated as a function of pH, contact time, initial concentration of Cr(VI), and temperature. It was found that the cross-linker structure and the silica morphology are the key factors controlling the sorption capacity. The adsorption process was spontaneous and endothermic and well described by pseudo-second-order kinetic and Sips isotherm models. The maximum sorption capacity of 311.2 mg Cr(VI)/g sorbent was found for the composite prepared with mesoporous silica using TEMED as cross-linker. The PSi/ANEX composite sorbents represent an excellent alternative for the removal of Cr(VI) oxyanions, being endowed with fast kinetics, equilibrium in about 60 min, and a high level of reusability in successive sorption/desorption cycles.
Collapse
Affiliation(s)
- Ecaterina Stela Dragan
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
| | - Doina Humelnicu
- Faculty of Chemistry, “Al. I. Cuza” University of Iasi, Bd. 11 Carol I, 700506 Iasi, Romania;
| |
Collapse
|
27
|
Zheng Y, Yan Y, Yu L, Li H, Jiao B, Shiau Y, Li D. Synergism of citric acid and zero-valent iron on Cr(VI) removal from real contaminated soil by electrokinetic remediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:5572-5583. [PMID: 31853846 DOI: 10.1007/s11356-019-06820-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/18/2019] [Indexed: 06/10/2023]
Abstract
This study focused on enhanced electrokinetic remediation of Cr(VI) in real contaminated soil. The citric acid (CA) as the electrolyte and Fe(II) released from zero-valent iron (ZVI) under anoxic conditions functioned as the main reducer. They were used for overcoming the high insoluble Cr(VI) fraction in real contaminated soil and high Cr(VI) residue in acidic soil near the anode simultaneously. The synergism of CA and ZVI is that CA helps the release of Cr(VI) to react with the generated Fe(II) and alleviates the hindrance of Fe and Cr co-precipitates in electromigration of Cr; meanwhile, the end product Fe(III) from ZVI catalyzed the Cr(VI) reduction by CA. The removal of Cr(III) and Cr(VI) was significantly improved in real contaminated soil. The optimum result (82.86%) was obtained at a voltage gradient of 2.5 V/cm after 12-day remediation with a 10 g ZVI dose when the catholyte and anolyte were 0.2 mol/L and 0.1 mol/L CA, respectively. This configuration has a significant improvement in overcoming the current obstacles for Cr(VI) electrokinetic remediation from real contaminated soil and prospects for large-scale practical applications.
Collapse
Affiliation(s)
- Yi Zheng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China
| | - Yujie Yan
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China
| | - Lin Yu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China
| | - Huilin Li
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China
| | - Binquan Jiao
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
- City College of Science and Technology, Chongqing University, Chongqing, 400044, China.
| | - YanChyuan Shiau
- Department of Construction Management, Chung Hua University, No. 707, Wufu Rd., Sec. 2, Hsinchu, 30012, Taiwan.
| | - Dongwei Li
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
| |
Collapse
|
28
|
Yang T, Han C, Tang J, Luo Y. Removal performance and mechanisms of Cr(VI) by an in-situ self-improvement of mesoporous biochar derived from chicken bone. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:5018-5029. [PMID: 31848961 DOI: 10.1007/s11356-019-07116-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 11/19/2019] [Indexed: 06/10/2023]
Abstract
A high-performance mesoporous biochar (MBCX) was fabricated from chicken bone via a facile and low-energy consumption pyrolysis process without any additional activators and templates. The physicochemical properties of biochar were carried out by elemental compositions, N2 adsorption-desorption isotherms, FTIR, and TG. The results illustrated that lower carbonization temperature leaded to a lower specific surface area and more polar functional groups. And the meso-structure of biochar was obtained at 350 °C. Combined with the result of batch experiment, Cr(VI) adsorption capacity was decreased with the increasing in pyrolysis temperature, which suggested that the removal performance was depended on the functional groups of mesoporous biochar rather than the surface area. Kinetic analysis showed that the Cr(VI) adsorption process on MBCX was suitable for Elovich kinetic. The experimental data was well explained by Langmuir isotherm models. And the maximum adsorption capacity was 58.195 mg/g, which was higher than that of most report pristine biochars. This work not only paved a way for subsequent mesoporous biochar preparation but also demonstrated the application potentials of MBCX as an environment benign Cr(VI) adsorbent.
Collapse
Affiliation(s)
- Ting Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Caiyun Han
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China.
| | - Jie Tang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Yongming Luo
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| |
Collapse
|
29
|
Effect of Functional Group Density of Anion Exchange Resins on Removal of p-Toluene Sulfonic Acid from Aqueous Solution. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app10010001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Adsorption using anion exchange resins is an efficient method for the removal of aromatic sulfonic acids (ASAs) from industrial wastewater. In this study, a series of weak-base anion exchangers (SD1–SD5) were synthesized to investigate the effect of functional group density of resins on the adsorption of ASAs from wastewater containing competitive inorganic anions. p-Toluene sulfonic acid (PTSA) was selected as a target pollutant, and Na2SO4 was chosen as the competitive inorganic salt because of its widespread existence in industrial wastewater. Adsorption performances of these resins were evaluated and compared in terms of selectivity, kinetics, isotherms, regeneration, and dynamic adsorption behavior. Importantly, the PTSA uptake increased with the raising content of functional groups on resins in the absence of Na2SO4; however, in the presence of a high level of Na2SO4 (for example, ≥1%), a decrease in the functional group density could improve the adsorption capacity of resins for PTSA. Moreover, desorption and fixed bed column experiments were conducted in all resins, thereby confirming the effect of functional group density of resins on the PTSA adsorption in actual application. In brief, this research will provide a better understanding for the design and preparation of anion exchangers for the effective removal of ASA from wastewater.
Collapse
|
30
|
Equilibrium and kinetic studies on adsorption of chromium(VI) onto pine-needle-generated activated carbon. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1617-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
31
|
Liu Y, Hu L, Yao Y, Su Z, Hu S. Construction of composite chitosan-glucose hydrogel for adsorption of Co2+ ions. Int J Biol Macromol 2019; 139:213-220. [DOI: 10.1016/j.ijbiomac.2019.07.202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 07/26/2019] [Accepted: 07/29/2019] [Indexed: 01/27/2023]
|
32
|
Xue F, He H, Zhu H, Huang H, Wu Q, Wang S. Structural Design of a Cellulose-Based Solid Amine Adsorbent for the Complete Removal and Colorimetric Detection of Cr(VI). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12636-12646. [PMID: 31490693 DOI: 10.1021/acs.langmuir.9b01788] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A cellulose-based solid amine adsorbent (MCC/TEPAA) with high amino density for the detection and removal of Cr(VI) was designed and prepared through using epichlorohydrin cross-linking with MCC (microcrystalline cellulose) and tetraethylenepentamine (TEPA). The structure and amino density of the cellulose-based solid amine adsorbents could be tailored by adjusting the structure of the amines (triethylenetetramine or diethylenetriamine). The as-prepared cellulose-based solid amine adsorbents could detect and completely remove Cr(VI) from water, and the concentration of Cr(VI) solution after adsorption met the standard concentration of Cr(VI) solution for drinking water (0.05 mg/L). In particular, the MCC/TEPAA, supported by MCC with porosity as a framework, promoted the adsorption rate (adsorption equilibrium within only 10 min), removal rate (100%) of Cr(VI), and adsorption capacity (327.72 mg/g). In addition, the limit of colorimetric detection of Cr(VI) by MCC/TEPAA was 0.5 mg/L at 20 min when other interfering heavy metal ions exist. The adsorption and colorimetric detection mechanism of Cr(VI) on MCC/TEPAA was proposed to include electrostatic interactions, chelating reactions, and oxidation-reduction reactions, all of which contributed to the excellent adsorption and detection performance.
Collapse
Affiliation(s)
- Fei Xue
- College of Light Industry and Food Engineering , Guangxi University , Nanning 530004 , PR China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control , Nanning 530004 , PR China
| | - Hui He
- College of Light Industry and Food Engineering , Guangxi University , Nanning 530004 , PR China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control , Nanning 530004 , PR China
| | - Hongxiang Zhu
- College of Light Industry and Food Engineering , Guangxi University , Nanning 530004 , PR China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control , Nanning 530004 , PR China
| | - Huanhuan Huang
- College of Light Industry and Food Engineering , Guangxi University , Nanning 530004 , PR China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control , Nanning 530004 , PR China
| | - Qi Wu
- College of Light Industry and Food Engineering , Guangxi University , Nanning 530004 , PR China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control , Nanning 530004 , PR China
- Guangxi Zhuang Autonomous Region Forestry Research Institute , Nanning 530002 , PR China
| | - Shuangfei Wang
- College of Light Industry and Food Engineering , Guangxi University , Nanning 530004 , PR China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control , Nanning 530004 , PR China
| |
Collapse
|
33
|
Hu T, Liu Q, Liu Q, Wu Y, Qiao C, Yao J. Toxic Cr removal from aqueous media using catechol-amine copolymer coating onto as-prepared cellulose. Carbohydr Polym 2019; 209:291-298. [DOI: 10.1016/j.carbpol.2019.01.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 01/10/2019] [Accepted: 01/14/2019] [Indexed: 11/25/2022]
|
34
|
Zhang W, Hu L, Hu S, Liu Y. Optimized synthesis of novel hydrogel for the adsorption of copper and cobalt ions in wastewater. RSC Adv 2019; 9:16058-16068. [PMID: 35521424 PMCID: PMC9064371 DOI: 10.1039/c9ra00227h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 04/27/2019] [Indexed: 01/08/2023] Open
Abstract
Metal ions in wastewater endanger the environment and even human life. In this study, an optimized method was used to synthesize an excellent hydrogel to treat these metal ions. The samples were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA), and applied to treat the Cu(ii) and Co(ii) ions in wastewater. In the adsorption experiment, the influential factors such as pH, adsorption time, adsorbent dosage and concentration of heavy metal ions and regeneration efficiency were evaluated, and the adsorption kinetics, isotherms and thermodynamics were studied. The orthogonal optimization results show that the best condition for synthesis was when the degree of neutralization of acrylic acid (A) was 70%, the quantity of glucose (B) was 0.2 g, the quantity of chitosan (C) was 0.05 g, and the quantity of initiator (D) was 0.03 g. The influence of the four factors was in the order D > B > C > A. The adsorption performance was optimal under neutral conditions and the dosage of 0.02 g adsorbent was chosen as the best. Experiments show that the composite hydrogels exhibited excellent performance under optimal conditions: at 20 °C and pH = 7, the adsorption capacity of 100 mg L−1 of Cu(ii) by 0.01 g hydrogel was 286 mg g−1. The adsorption process of heavy metal ions by hydrogels conforms to pseudo-second-order kinetics and Langmuir isotherm model, which indicate a spontaneous endothermic reaction. Moreover, after five cycles, the removal rates of Cu(ii) and Co(ii) were 81% and 74.8%, respectively. Metal ions in wastewater endanger the environment and even human life. In this study, an optimized method was used to synthesize an excellent hydrogel to treat these metal ions.![]()
Collapse
Affiliation(s)
- Wei Zhang
- School of Environmental and Safety Engineering
- North University of China
- 030051 Taiyuan
- China
| | - Lishuang Hu
- School of Environmental and Safety Engineering
- North University of China
- 030051 Taiyuan
- China
| | - Shuangqi Hu
- School of Environmental and Safety Engineering
- North University of China
- 030051 Taiyuan
- China
| | - Yang Liu
- School of Environmental and Safety Engineering
- North University of China
- 030051 Taiyuan
- China
| |
Collapse
|