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Li B, Ashrafizadeh M, Jiao T. Biomedical application of metal-organic frameworks (MOFs) in cancer therapy: Stimuli-responsive and biomimetic nanocomposites in targeted delivery, phototherapy and diagnosis. Int J Biol Macromol 2024; 260:129391. [PMID: 38242413 DOI: 10.1016/j.ijbiomac.2024.129391] [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: 10/09/2023] [Revised: 12/12/2023] [Accepted: 01/08/2024] [Indexed: 01/21/2024]
Abstract
The nanotechnology is an interdisciplinary field that has become a hot topic in cancer therapy. Metal-organic frameworks (MOFs) are porous materials and hybrid composites consisted of organic linkers and metal cations. Despite the wide application of MOFs in other fields, the potential of MOFs for purpose of cancer therapy has been revealed by the recent studies. High surface area and porosity, significant drug loading and encapsulation efficiency are among the benefits of using MOFs in drug delivery. MOFs can deliver genes/drugs with selective targeting of tumor cells that can be achieved through functionalization with ligands. The photosensitizers and photo-responsive nanostructures including carbon dots and gold nanoparticles can be loaded in/on MOFs to cause phototherapy-mediated tumor ablation. The immunogenic cell death induction and increased infiltration of cytotoxic CD8+ and CD4+ T cells can be accelerated by MOF platforms in providing immunotherapy of tumor cells. The stimuli-responsive MOF platforms responsive to pH, redox, enzyme and ion can accelerate release of therapeutics in tumor site. Moreover, MOF nanocomposites can be modified ligands and green polymers to improve their selectivity and biocompatibility for cancer therapy. The application of MOFs for the detection of cancer-related biomarkers can participate in the early diagnosis of patients.
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Affiliation(s)
- Beixu Li
- School of Policing Studies, Shanghai University of Political Science and Law, Shanghai 201701, China; Shanghai Fenglin Forensic Center, Shanghai 200231, China; State Key Laboratory of Medical Neurobiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China; Department of Pathology, University of Maryland, Baltimore, MD 21201, USA
| | - Milad Ashrafizadeh
- Department of General Surgery, Institute of Precision Diagnosis and Treatment of Digestive System Tumors, Carson International Cancer Center, Shenzhen University General Hospital, Shenzhen University, Shenzhen, Guangdong 518055, China; International Association for Diagnosis and Treatment of Cancer, Shenzhen, Guangdong 518055, China; Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250000, China.
| | - Taiwei Jiao
- Department of Gastroenterology and Endoscopy, The First Hospital of China Medical University, 155 North Nanjing St, Shenyang 110001, China.
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Adeola AO, Iwuozor KO, Akpomie KG, Adegoke KA, Oyedotun KO, Ighalo JO, Amaku JF, Olisah C, Conradie J. Advances in the management of radioactive wastes and radionuclide contamination in environmental compartments: a review. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:2663-2689. [PMID: 36097208 DOI: 10.1007/s10653-022-01378-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/22/2022] [Indexed: 06/01/2023]
Abstract
Several anthropogenic activities produce radioactive materials into the environment. According to reports, exposure to high concentrations of radioactive elements such as potassium (40K), uranium (238U and 235U), and thorium (232Th) poses serious health concerns. The scarcity of reviews addressing the occurrence/sources, distribution, and remedial solutions of radioactive contamination in the ecosystems has fueled data collection for this bibliometric survey. In rivers and potable water, reports show that several parts of Europe and Asia have recorded radionuclide concentrations much higher than the permissible level of 1 Bq/L. According to various investigations, activity concentrations of gamma-emitting radioactive elements discovered in soils are higher than the global average crustal values, especially around mining activities. Adsorption technique is the most prevalent remedial method for decontaminating radiochemically polluted sites. However, there is a need to investigate integrated approaches/combination techniques. Although complete radionuclide decontamination utilizing the various technologies is feasible, future research should focus on cost-effectiveness, waste minimization, sustainability, and rapid radionuclide decontamination. Radioactive materials can be harnessed as fuel for nuclear power generation to meet worldwide energy demand. However, proper infrastructure must be put in place to prevent catastrophic disasters.
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Affiliation(s)
- A O Adeola
- Department of Chemical Sciences, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria.
- Department of Chemical Sciences, University of Johannesburg, Doornfontein, 2028, South Africa.
| | - K O Iwuozor
- Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, Awka, Nigeria
| | - K G Akpomie
- Department of Chemistry, University of the Free State, Bloemfontein, 9300, South Africa
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - K A Adegoke
- Department of Chemical Sciences, University of Johannesburg, Doornfontein, 2028, South Africa
| | - K O Oyedotun
- Department of Physics, Institute of Applied Materials, SARChI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria, 0028, South Africa
| | - J O Ighalo
- Department of Chemical Engineering, Nnamdi Azikiwe University, P.M.B. 5025, Awka, Nigeria
| | - J F Amaku
- Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Nigeria
| | - C Olisah
- Department of Botany, Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Port Elizabeth, South Africa
| | - J Conradie
- Department of Chemistry, University of the Free State, Bloemfontein, 9300, South Africa
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Khan MM, Rahman A, Matussin SN. Recent Progress of Metal-Organic Frameworks and Metal-Organic Frameworks-Based Heterostructures as Photocatalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162820. [PMID: 36014685 PMCID: PMC9413115 DOI: 10.3390/nano12162820] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/13/2022] [Accepted: 08/14/2022] [Indexed: 05/09/2023]
Abstract
In the field of photocatalysis, metal-organic frameworks (MOFs) have drawn a lot of attention. MOFs have a number of advantages over conventional semiconductors, including high specific surface area, large number of active sites, and an easily tunable porous structure. In this perspective review, different synthesis methods used to prepare MOFs and MOFs-based heterostructures have been discussed. Apart from this, the application of MOFs and MOFs-based heterostructures as photocatalysts for photocatalytic degradation of different types of pollutants have been compiled. This paper also highlights the different strategies that have been developed to modify and regulate pristine MOFs for improved photocatalytic performance. The MOFs modifications may result in better visible light absorption, effective photo-generated charge carriers (e-/h+), separation and transfer as well as improved recyclability. Despite that, there are still many obstacles and challenges that need to be addressed. In order to meet the requirements of using MOFs and MOFs-based heterostructures in photocatalysis for low-cost practical applications, future development and prospects have also been discussed.
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Li L, Li L, Cheng G, Wei S, Wang Y, Huang Q, Wu W, Liu X, Chen G. Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers. Polymers (Basel) 2022; 14:polym14142771. [PMID: 35890545 PMCID: PMC9317971 DOI: 10.3390/polym14142771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/19/2022] [Accepted: 07/01/2022] [Indexed: 02/04/2023] Open
Abstract
Chrysin is a natural bioactive molecule with various groups, and it has been a challenge to separate and enrich chrysin from natural products. Molecularly imprinted polymers have been widely used in the extraction of natural products, but the number and type of functional monomers limits the separation effect. The synergistic action of multiple functional monomers can improve the separation effect. In this paper, molecularly imprinted polymers (Bi-MIPs) were prepared using methacrylic acid and acrylamide as binary functional monomers for the separation and enrichment of chrysin. The Bi-MIPs were characterized using thermogravimetric analyzer (TGA), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). The performances of Bi-MIPs were assessed, which included adsorption isotherms, selective recognition and adsorption kinetics. The experimental results show that Bi-MIPs are shaped as a uniform sphere with an abundant pocket structure on its surface. The adsorption of chrysin on the Bi-MIPs followed a pseudo-second-order and adapted Langmuir–Freundlich isotherm models. The adsorption performance of the Bi-MIPs was determined at different temperatures, and the Bi-MIPs showed excellent adsorption performance at 30 °C. The initial decomposition temperature of the Bi-MIPs was 220 °C. After five times of adsorption and desorption, the adsorption performance of the Bi-MIPs decreased by only 7%. In contrast with single functional monomer molecularly imprinted polymers (Si-MIPs), the Bi-MIPs showed excellent specificity, with an imprinting factor of 1.54. The Bi-MIPs are promising materials in the separation and enrichment of chrysin for their high adsorption capacity, low cost and being environmentally friendly.
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Affiliation(s)
- Long Li
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China; (L.L.); (L.L.); (G.C.); (S.W.); (Y.W.); (Q.H.)
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Nanning 530006, China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Nanning 530006, China
- Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Lanfu Li
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China; (L.L.); (L.L.); (G.C.); (S.W.); (Y.W.); (Q.H.)
| | - Gege Cheng
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China; (L.L.); (L.L.); (G.C.); (S.W.); (Y.W.); (Q.H.)
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Nanning 530006, China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Nanning 530006, China
- Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Sentao Wei
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China; (L.L.); (L.L.); (G.C.); (S.W.); (Y.W.); (Q.H.)
| | - Yaohui Wang
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China; (L.L.); (L.L.); (G.C.); (S.W.); (Y.W.); (Q.H.)
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Nanning 530006, China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Nanning 530006, China
- Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Qin Huang
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China; (L.L.); (L.L.); (G.C.); (S.W.); (Y.W.); (Q.H.)
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Nanning 530006, China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Nanning 530006, China
- Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Wei Wu
- Jihua Laboratory, 13 Nanpingxi Road, Foshan 528200, China;
| | - Xiuyu Liu
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China; (L.L.); (L.L.); (G.C.); (S.W.); (Y.W.); (Q.H.)
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Nanning 530006, China
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Nanning 530006, China
- Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
- Correspondence: (X.L.); (G.C.)
| | - Guoning Chen
- Guangxi Bossco Environmental Protection Technology Co., Ltd., Nanning 530007, China
- Correspondence: (X.L.); (G.C.)
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Zhu B, Li L, Dai Z, Tang S, Zhen D, Sun L, Chen L, Tuo C, Tang Z. Synthesis of amidoximated polyacrylonitrile/sodium alginate composite hydrogel beed and its use in selective and recyclable removal of U(VI). J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08233-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Gendy EA, Oyekunle DT, Ali J, Ifthikar J, El-Motaleb Mosad Ramadan A, Chen Z. High-performance removal of radionuclides by porous organic frameworks from the aquatic environment: A review. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2021; 238-239:106710. [PMID: 34481100 DOI: 10.1016/j.jenvrad.2021.106710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Dealing with unwanted nuclear waste is still a serious issue from the point of view of humans and the environment because of its harmful and dangerous effects. Recently, porous organic frameworks (POFs) have gained an increasing concern as effective materials in the removal of various types of hazardous metal ions, especially radioactive metal ions. POFs are a unique class that included covalent organic frameworks (COFs) and metal-organic frameworks (MOFs) with strong covalent bonds, large surface area, high adsorption capacity, tunable porosity, and a porous structure with more efficient than conventional adsorbents. This review highlights the recent developments of POFs for the rapid elimination of radionuclide. The unique characteristics, adsorption properties, and interaction mechanisms between radioactive metal ions and the POF-based materials are summarized. Also, prospects for enhancing the performance of POFs to capture radioactive metal ions are discussed.
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Affiliation(s)
- Eman Abdelnasser Gendy
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Chemistry Department, Faculty of Science, Kafrelsheikh University, El-Geish Street, P.O. Box 33516, Kafrelsheikh, Egypt
| | - Daniel Temitayo Oyekunle
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Jawad Ali
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Jerosha Ifthikar
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Abd El-Motaleb Mosad Ramadan
- Chemistry Department, Faculty of Science, Kafrelsheikh University, El-Geish Street, P.O. Box 33516, Kafrelsheikh, Egypt
| | - Zhuqi Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China.
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Wang Y, Lin Z, Liu Q, Zhu J, Liu J, Yu J, Chen R, Liu P, Wang J. Ultra-high mechanical property and multi-layer porous structure of amidoximation ethylene-acrylic acid copolymer balls for efficient and selective uranium adsorption from radioactive wastewater. CHEMOSPHERE 2021; 280:130722. [PMID: 33971414 DOI: 10.1016/j.chemosphere.2021.130722] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/08/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Adsorption uranium [U(VI)] from U-containing radioactive wastewater (URW) is a critical strategy for solving the resource shortage and environmental pollution in pace with the sustainable development of nuclear energy. However, the URW universally exhibits acidity and contains co-existing metal ions with high concentration. Herein, the amidoximation ethylene-acrylic acid copolymer balls (EAA-AO) with aciduric and super-high mechanical property were successfully synthesized through grafting diaminomaleonitrile and further treatment of amidoximation. Significantly, the mechanical properties of EAA-AO were not affected by the grafting process and maintained super-high mechanical properties. Furthermore, the -NH2 and unreacted -CN groups in diaminomaleonitrile adjusted the pKa to make the optimal pH be 4. In addition, the microstructure of EAA-AO was transformed from the original dense to multi-layer porous structure, which promoted the mass transfer process and the contact between uranyl ions (UO22+) and internal adsorption active sites. The adsorption capacity of EAA-AO was about 1.78 times that of EAA at pH = 4, and the adsorption capacity for U(VI) was about 8.17 times that of Ba2+ with the second highest adsorption capacity. Therefore, the EAA-AO exhibited ultra-high adsorption performance (qe = 3.196 mg g-1) in the artificial radioactive wastewater, laying a good foundation for subsequent large-scale industrial adsorption of U(VI) in nuclear industrial wastewater.
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Affiliation(s)
- Ying Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
| | - Zaiwen Lin
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
| | - Qi Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China; HIT (Hainan) Military-Civilian Integration Innovation Research Institute Co. Ltd, Hainan, 572400, China.
| | - Jiahui Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
| | - Jingyuan Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
| | - Jing Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
| | - Rongrong Chen
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China; Institute of Advanced Marine Materials, Harbin Engineering University, 150001, China.
| | - Peili Liu
- Institute of Advanced Marine Materials, Harbin Engineering University, 150001, China.
| | - Jun Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China; Institute of Advanced Marine Materials, Harbin Engineering University, 150001, China.
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Jang HJ, Park SJ, Yang JH, Hong SM, Rhee CK, Sohn Y. Photocatalytic and Electrocatalytic Properties of Cu-Loaded ZIF-67-Derivatized Bean Sprout-Like Co-TiO 2/Ti Nanostructures. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1904. [PMID: 34443738 PMCID: PMC8399894 DOI: 10.3390/nano11081904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 01/03/2023]
Abstract
ZIF-derivatized catalysts have shown high potential in catalysis. Herein, bean sprout-like Co-TiO2/Ti nanostructures were first synthesized by thermal treatment at 800 °C under Ar-flow conditions using sacrificial ZIF-67 templated on Ti sheets. It was observed that ZIF-67 on Ti sheets started to thermally decompose at around 350 °C and was converted to the cubic phase Co3O4. The head of the bean sprout structure was observed to be Co3O4, while the stem showed a crystal structure of rutile TiO2 grown from the metallic Ti support. Cu sputter-deposited Co-TiO2/Ti nanostructures were also prepared for photocatalytic and electrocatalytic CO2 reduction performances, as well as electrochemical oxygen reaction (OER). Gas chromatography results after photocatalytic CO2 reduction showed that CH3OH, CO and CH4 were produced as major products with the highest MeOH selectivity of 64% and minor C2 compounds of C2H2, C2H4 and C2H6. For electrocatalytic CO2 reduction, CO, CH4 and C2H4 were meaningfully detected, but H2 was dominantly produced. The amounts were observed to be dependent on the Cu deposition amount. Electrochemical OER performances in 0.1 M KOH electrolyte exhibited onset overpotentials of 330-430 mV (vs. RHE) and Tafel slopes of 117-134 mV/dec that were dependent on Cu-loading thickness. The present unique results provide useful information for synthesis of bean sprout-like Co-TiO2/Ti hybrid nanostructures and their applications to CO2 reduction and electrochemical water splitting in energy and environmental fields.
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Affiliation(s)
- Hye Ji Jang
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea; (H.J.J.); (S.J.P.); (J.H.Y.); (S.-M.H.); (C.K.R.)
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea
| | - So Jeong Park
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea; (H.J.J.); (S.J.P.); (J.H.Y.); (S.-M.H.); (C.K.R.)
| | - Ju Hyun Yang
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea; (H.J.J.); (S.J.P.); (J.H.Y.); (S.-M.H.); (C.K.R.)
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea
| | - Sung-Min Hong
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea; (H.J.J.); (S.J.P.); (J.H.Y.); (S.-M.H.); (C.K.R.)
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea
| | - Choong Kyun Rhee
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea; (H.J.J.); (S.J.P.); (J.H.Y.); (S.-M.H.); (C.K.R.)
| | - Youngku Sohn
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea; (H.J.J.); (S.J.P.); (J.H.Y.); (S.-M.H.); (C.K.R.)
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea
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Peng G, Tang B, Zhou X. Effect of Preparation Methods on the Adsorption of Glyphosate by Calcined Ca-Al Hydrotalcite. ACS OMEGA 2021; 6:15742-15749. [PMID: 34179618 PMCID: PMC8223221 DOI: 10.1021/acsomega.1c01025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 06/02/2021] [Indexed: 05/26/2023]
Abstract
Calcined Ca-Al hydrotalcites were prepared by the clean method (Ca-LDO-1) and traditional co-precipitation method (Ca-LDO-2), respectively. The effect of the preparation method on the adsorption of glyphosate by calcined Ca-Al hydrotalcites was investigated. The adsorbents were also characterized by X-ray diffraction (XRD), thermogravimetric (TG) analysis, inductively coupled plasma optical emission spectroscopy (ICP-OES), and low-temperature N2 adsorption-desorption, respectively. Compared with Ca-LDO-2, Ca-LDO-1 had higher specific surface area and pore volume, which caused it to show better adsorption performance and reusability for the adsorbing of glyphosate. In addition, the kinetics and thermodynamics of the adsorption of glyphosate by Ca-LDO-1 were studied. The results showed that it was more consistent with the pseudo-second-order kinetic equation and Langmuir isotherm equation.
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Affiliation(s)
- Guanping Peng
- Department of Food and Chemical
Engineering, Shaoyang University, Shaoyang, Hunan 422000, PR China
| | - Bei Tang
- Department of Food and Chemical
Engineering, Shaoyang University, Shaoyang, Hunan 422000, PR China
| | - Xi Zhou
- Department of Food and Chemical
Engineering, Shaoyang University, Shaoyang, Hunan 422000, PR China
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