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Ye S, Yang H, Iqbal K, Wu Y, Tan L, Hu H, Xu X, Ye W. Low-Ag-content Ni3N-Ni/Ag@C catalyst for the reduction of 4-nitrophenol. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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2
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Ran Z, Shao X, Mushtaq MA, Du X, Liu H, Hou S, Ji S. Preparation of Cs/Cu-LDO@X catalysts and reaction mechanism of the side-chain alkylation of toluene to styrene. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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3
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Shabani S, Dinari M. Ag/LDH-itaconic acid-gellan gam nanocomposites: Facile and green synthesis, characterization, and excellent catalytic reduction of 4-nitrophenol. Int J Biol Macromol 2021; 193:1645-1652. [PMID: 34742553 DOI: 10.1016/j.ijbiomac.2021.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/13/2021] [Accepted: 11/01/2021] [Indexed: 11/29/2022]
Abstract
The catalytic reduction reaction is one of the most commonly used solutions to convert high-risk contaminants into safe or low-risk materials. Today, with the increasing water pollution, the urgent need for efficient and effective catalysts is felt more than ever. For this purpose, for the first time, a green catalyst composed of silver nanoparticles anchored on itaconic acid-modified Ca-Al layered double hydroxide/gellan gum nanocomposite (Ag/LDH-ITA-GG NC) was prepared from a green approach without the use of any toxic organic solvents. To gain an in-depth insight into the physicochemical properties of the catalyst, different techniques including nitrogen adsorption-desorption isotherms, FESEM/mapping, FTIR, TGA, and XRD were used. The catalytic performance of the Ag/LDH-ITA-GG NC toward 4-nitrophenol reduction by NaBH4 was investigated. The calculated values of the apparent rate constant for this reaction are 0.2142 min-1 (for 1.0 mg of the catalyst), 0.2375 min-1 (for 3.0 mg of the catalyst), and 0.2550 min-1 (for 5.0 mg of the catalyst), indicating that the catalytic conversion of 4-nitrophenol to 4-aminophenol on the Ag/LDH-ITA-GG NC catalyst follows the pseudo-first-order kinetics and is comparable to the previous findings in the literature. The results of this study indicated that Ag/LDH-ITA-GG NC can potentially be utilized as an auspicious high efficient green catalyst for the reduction of pollutants like 4-nitrophenol.
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Affiliation(s)
- Shirin Shabani
- Chemistry Group, Pardis College, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Mohammad Dinari
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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Nava-Andrade K, Carbajal-Arízaga GG, Obregón S, Rodríguez-González V. Layered double hydroxides and related hybrid materials for removal of pharmaceutical pollutants from water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 288:112399. [PMID: 33774560 DOI: 10.1016/j.jenvman.2021.112399] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/23/2021] [Accepted: 03/13/2021] [Indexed: 06/12/2023]
Abstract
Pharmaceuticals and their by-products are recalcitrant contaminants in water. Moreover, the high consumption of these drugs has many detrimental effects on body waters and ecosystems. In this timely review, the advances in molecular engineering of layered double hydroxides (LDH) that have been used for the removal of pharmaceutical pollutants are discussed. The approach starts from the strategies to obtain homogeneous synthesis of LDH that allow the doping and/or surface functionalization of different metals and oxides, producing heterojunction systems as well as composites with carbon and silica-based materials with high surface area. Adsorption is considered as a traditional removal of pharmaceutical pollutants, so the kinetic and mechanism of this phenomenon are analyzed based on pH, temperature, ionic strength, in order to obtain new insights for the formation of multifunctional LDH. Advanced oxidation methodologies, mainly heterogeneous photocatalysis and Fenton-like processes, stand out as the more efficient even to obtain the mineralization of the drugs. The LDH have the advantage of structural memory that favors regeneration processes. The reconstruction of calcined LDH can be used to improve drug removal, through a combination of adsorption capacity/catalytic activity. A meticulous analysis of the persistence, toxicity and bioaccumulation of the most common pharmaceuticals has allowed us to highlight the ability of the LDH to remove recalcitrant drugs at relatively low concentrations (ppm, ppb), in contrast to other mixed oxide nanostructures and homogeneous oxidation processes. In this sense, the mechanism of drug removal by LDH is discussed based on the importance of the use of composites, scavenger agents, Fenton and electro-Fenton processes, membranes, thin films and coatings, among others. In addition, the ecotoxicity of LDH is also reviewed to indicate that these layered structures can exhibit biocompatibility or high toxicity depending on the adsorbed drug and ions/metals that compose them. Undoubtedly, the LDH have a unique flexible structure with adsorption capacity and catalytic activity, facts that explain the important reasons for their extensive use in the environmental remediation of pharmaceutical pollutants from water.
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Affiliation(s)
- K Nava-Andrade
- Departamento de Química, Universidad de Guadalajara, Marcelino García Barragán 1421, C.P. 44430, Guadalajara, Jalisco, Mexico.
| | - G G Carbajal-Arízaga
- Departamento de Química, Universidad de Guadalajara, Marcelino García Barragán 1421, C.P. 44430, Guadalajara, Jalisco, Mexico.
| | - S Obregón
- Universidad Autónoma de Nuevo León, UANL, CICFIM-Facultad de Ciencias Físico Matemáticas, Av. Universidad S/N, San Nicolás de los Garza, 66455, Nuevo León, Mexico.
| | - V Rodríguez-González
- Instituto Potosino de Investigación Científica y Tecnológica (IPICyT), División de Materiales Avanzados, Camino a la Presa San José 2055, Lomas 4ta, Sección, 78216, San Luis Potosí, Mexico.
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Impact of g-C3N4 loading on NiCo LDH for adsorptive removal of anionic and cationic organic pollutants from aqueous solution. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0784-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Meng F, Qin Y, Lu J, Lin X, Meng M, Sun G, Yan Y. Biomimetic design and synthesis of visible-light-driven g-C 3N 4 nanotube @polydopamine/NiCo-layered double hydroxides composite photocatalysts for improved photocatalytic hydrogen evolution activity. J Colloid Interface Sci 2020; 584:464-473. [PMID: 33096412 DOI: 10.1016/j.jcis.2020.10.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/23/2020] [Accepted: 10/04/2020] [Indexed: 02/06/2023]
Abstract
In the practical process of photocatalytic H2 evolution, optimizing the ability of light absorption and charge spatial separation is the top priority for improving the photocatalytic performance. In this study, we elaborately engineer neoteric g-C3N4 nanotube@polydopamine(pDA)/NiCo-LDH (LPC) composite photocatalyst by combining hydrothermal and calcination method. In the LPC composite system, the one-dimensional (1D) g-C3N4 nanotubes with larger specific surface area can afford more active sites and conduce to shorten the charge migration distance, as well as the high-speed mass transfer in the nanotube can accelerate the reaction course. The g-C3N4/NiCo-LDH type-II heterojunction can efficaciously stimulate the spatial separation of photo-produced charge. In addition, pDA as heterojunction metal-free interface mediums can provide multiple action (π-π* electron delocalization effect, adhesive action and photosensitization). The optimized LPC nanocomposite displays about 3.3-fold high photoactivity for H2 evolution compared with the g-C3N4 nanotube under solar light irradiation. In addition, the cycle experiment result shows that the LPC composite photocatalyst possesses superior stability and recyclability. The resultant g-C3N4@pDA/NiCo-LDH composite photocatalyst displays the potential practical application in the field of energy conversion.
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Affiliation(s)
- Fanying Meng
- College of Science, Beihua University, Jilin 132013, PR China; Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yingying Qin
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, PR China
| | - Jian Lu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xinyu Lin
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, PR China
| | - Minjia Meng
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Gang Sun
- College of Science, Beihua University, Jilin 132013, PR China.
| | - Yongsheng Yan
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
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Chen DH. Special issue on nanomaterials for adsorptive removal of contaminants from aqueous solutions (Nano-adsorbents). J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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8
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Shyamala R, Gomathi Devi LN. Surface plasmon resonance effect of Ag metallized SnO
2
particles: Exploration of metal induced gap states and characteristic properties of Ohmic junction. SURF INTERFACE ANAL 2020. [DOI: 10.1002/sia.6745] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ramakrishnappa Shyamala
- Department of Post Graduates Studies in Chemistry, Sneha Bhavan, Jnana Bharathi CampusBangalore University Bangalore India
| | - Lakshmipathi Naik Gomathi Devi
- Department of Post Graduates Studies in Chemistry, Sneha Bhavan, Jnana Bharathi CampusBangalore University Bangalore India
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9
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Liu S, Shan Y, Chen L, Boury B, Huang L, Xiao H. Probing nanocolumnar silver nanoparticle/zinc oxide hierarchical assemblies with advanced surface plasmon resonance and their enhanced photocatalytic performance for formaldehyde removal. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Shengnan Liu
- College of Material EngineeringFujian Agriculture and Forestry University Fuzhou 350108 China
| | - Yiwei Shan
- College of Material EngineeringFujian Agriculture and Forestry University Fuzhou 350108 China
| | - Lihui Chen
- College of Material EngineeringFujian Agriculture and Forestry University Fuzhou 350108 China
| | - Bruno Boury
- Institute Charles Gerhardt UMR CNRS 5253, CMOS teamUniversité de Montpellier CC1701, place E. Bataillon 34095 Montpellier France
| | - Liulian Huang
- College of Material EngineeringFujian Agriculture and Forestry University Fuzhou 350108 China
| | - He Xiao
- College of Material EngineeringFujian Agriculture and Forestry University Fuzhou 350108 China
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Sun Y, Gao X, Yang N, Tantai X, Xiao X, Jiang B, Zhang L. Morphology-Controlled Synthesis of Three-Dimensional Hierarchical Flowerlike Mg–Al Layered Double Hydroxides with Enhanced Catalytic Activity for Transesterification. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00703] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yongli Sun
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Xiang Gao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Na Yang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaowei Tantai
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaoming Xiao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Bin Jiang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Luhong Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
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