1
|
Eroğlan AN, Baran T. Palladium nanoparticles anchored on NiO particles-modified micro-size chitosan spheres: A promising, active, and retrievable catalyst system for treatment of environmental pollutants. Int J Biol Macromol 2024; 276:133835. [PMID: 39002901 DOI: 10.1016/j.ijbiomac.2024.133835] [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: 12/31/2022] [Revised: 03/24/2023] [Accepted: 07/10/2024] [Indexed: 07/15/2024]
Abstract
Efficient treatment of toxic organic pollutants in water/wastewater by using innovative, cost efficient, and simple technologies has recently become an important issue worldwide. Remediation of these pollutants with chemical reduction in the presence of a nano-sized catalyst and a reducing agent is one of the most useful methodologies. In the present study, we have designed a promising heterogeneous catalyst system (Pd@CS-NiO) by easy and efficient stabilization of palladium nanoparticles on the surface of microspheres composed of chitosan (CS)-NiO particles (CS-NiO) for the reduction of organic pollutants. The nano-structure of the developed Pd@CS-NiO was successfully validated using FE-SEM, XRD, EDS, TEM, and FTIR/ATR and its particles size was determined as 10 nm. The catalytic power of Pd@CS-NiO was then assessed in the reduction of 4-nitro-o-phenylenediamine (4-NPDA), 4-nitrophenol (4-NP), 4-nitroaniline (4-NA), 2-nitroaniline (2-NA), and some organic dyes, namely methylene blue (MB), methyl orange (MO), and rhodamine B (RhB) in aqueous medium at room temperature. The reductions were thoroughly studied spectro-photometrically. The tests displayed that the synthesized Pd@CS-NiO was a highly active and useful catalyst that reduced these pollutants in 0-145 s. Moreover, the rate constants for 2-NA, 4-NP, 4-NA, 4-NPDA, MO, and RhB were found to be 0.017 s-1, 0.011 s-1, 0.006 s-1, 0.013 s-1, 0.023 s-1, and 0.03 s-1, respectively. Moreover, the recycling test indicated that Pd@CS-NiO may be recovered easily thanks to its micro size nature and could be used up to seven steps, confirming its practical application potential.
Collapse
Affiliation(s)
- Afife Nur Eroğlan
- Department of Chemistry, Faculty of Science and Letters, Aksaray University, 68100 Aksaray, Turkey
| | - Talat Baran
- Department of Chemistry, Faculty of Science and Letters, Aksaray University, 68100 Aksaray, Turkey.
| |
Collapse
|
2
|
Niu L, Xin J, Liu J, Liu Y, Wu X, Zhang F, Li X, Shao C, Li X, Liu Y. Highly dispersed g-C 3N 4 on well-designed three-dimensional porous nanostructured ZrO 2 for high-performance photocatalytic degradation and H 2 production. J Colloid Interface Sci 2023; 638:324-338. [PMID: 36746051 DOI: 10.1016/j.jcis.2023.01.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/29/2023]
Abstract
A novel polymer-assisted freeze-drying method was adopted for preparing three-dimensional porous nanostructured ZrO2 (3DPZ) with macro self-supporting properties. Then, g-C3N4 was in-situ grown uniformly on the 3DPZ through a gas-solid reaction, forming 3D nanoporous ZrO2/g-C3N4 heterojunctions (3DP/ZC) with different g-C3N4 loadings that retained self-supporting characteristics. The kapp value of Rhodamine B (RhB) degradation and H2 evolution rate of the 3DP/ZC-2 under visible light reached 0.035 min-1 and 1013.1 μmol h-1 g-1, which were 19.6 and 6.6 times higher than pure g-C3N4, respectively. The ZrO2 nanoparticles (ZNps) prepared via freeze-drying, but without polymer precursor, were used as support to form ZrO2/g-C3N4 nanoparticles (ZCNps-2) for comparison study. The RhB degradation rate and H2 evolution rate of the 3DP/ZC-2 under visible light were about 3.7 and 5.3 times higher than ZCNps-2. Their enhanced photocatalytic activity could be attributed to their unique 3D heterointerface with matched energy bands for rapid charge separation and transfer and a hierarchical porous structure for mass transfer and surface reaction processes. The scavenger trapping and ESR measurements confirmed that the primary reactive radicals for degradation were superoxide radical ions (⋅O2-), hydroxyl radicals (⋅OH), and photogenerated holes (h+). The pH-dependent photocatalytic degradation activity originated from the H+-related ⋅OH conversion reaction. Besides, the macro self-supporting nature could provide excellent separability and recyclability, and self-supporting membranes were also constructed and demonstrated as stable and recyclable photocatalysts. This work provides a new routine for designing 3D-heterojunctions as new kinds of functional materials for applications in environmental remediation and green energy production.
Collapse
Affiliation(s)
- Luyao Niu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China
| | - Jiayu Xin
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China
| | - Jie Liu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China
| | - Yu Liu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China
| | - Xi Wu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China
| | - Fang Zhang
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China
| | - Xiaowei Li
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China
| | - Changlu Shao
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China.
| | - Xinghua Li
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China.
| | - Yichun Liu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China
| |
Collapse
|
3
|
Zeng T, Jin S, Jin Z, Li S, Zou R, Zhang X, Song S, Liu M. Ultrafine ZnCo 2O 4 QD-incorporated carbon nitride mediated peroxymonosulfate activation for norfloxacin oxidation: performance, mechanisms and pathways. RSC Adv 2023; 13:14048-14059. [PMID: 37181504 PMCID: PMC10167798 DOI: 10.1039/d3ra02364h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 04/30/2023] [Indexed: 05/16/2023] Open
Abstract
Recently, peroxymonosulfate (PMS)-based advanced oxidation processes (AOPs) are being actively investigated as a potential technology for water decontamination and many efforts have been made to improve the activation efficiency of PMS. Herein, a 0D metal oxide quantum dot (QD)-2D ultrathin g-C3N4 nanosheet (ZnCo2O4/g-C3N4) hybrid was facilely fabricated through a one-pot hydrothermal process and used as an efficient PMS activator. Benefiting from the restricted growth effect of the g-C3N4 support, ultrafine ZnCo2O4 QDs (∼3-5 nm) are uniformly and stably anchored onto the surface. The ultrafine ZnCo2O4 possesses high specific surface areas and shortened mass/electron transport route so that the internal static electric field (Einternal) formed in the interface between p-type ZnCo2O4 and the n-type g-C3N4 semiconductor could speed up the electron transfer during the catalytic reaction. This thereby induces the high-efficiency PMS activation for rapid organic pollutant removal. As expected, the ZnCo2O4/g-C3N4 hybrid catalysts significantly outperformed individual ZnCo2O4 and g-C3N4 in catalytic oxidative degradation of norfloxacin (NOR) in the presence of PMS (95.3% removal of 20 mg L-1 of NOR in 120 min). Furthermore, the ZnCo2O4/g-C3N4-mediated PMS activation system was systematically studied in terms of the identification of reactive radicals, the impact of control factors, and the recyclability of the catalyst. The results of this study demonstrated the great potential of a built-in electric field-driven catalyst as a novel PMS activator for the remediation of contaminated water.
Collapse
Affiliation(s)
- Tao Zeng
- College of Architecture and Environment, Sichuan University Sichuan 610065 China +86-571-88320726
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology Hangzhou Zhejiang 310032 P. R. China
| | - Sijia Jin
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology Hangzhou Zhejiang 310032 P. R. China
| | - Zhiquan Jin
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology Hangzhou Zhejiang 310032 P. R. China
| | - Shuqi Li
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology Hangzhou Zhejiang 310032 P. R. China
- Hangzhou Vocational & Technical College, Ecology and Health Institute Hangzhou 310018 P. R. China
| | - Rui Zou
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology Hangzhou Zhejiang 310032 P. R. China
| | - Xiaole Zhang
- College of Life Science, North China University of Science and Technology Tangshan Hebei 063000 China
| | - Shuang Song
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology Hangzhou Zhejiang 310032 P. R. China
| | - Min Liu
- College of Architecture and Environment, Sichuan University Sichuan 610065 China +86-571-88320726
| |
Collapse
|
4
|
Chen Y, Yang C, Huang X, Li L, Yu N, Xie H, Zhu Z, Yuan Y, Zhou L. Two-dimensional MXene enabled carbon quantum dots@Ag with enhanced catalytic activity towards the reduction of p-nitrophenol. RSC Adv 2022; 12:4836-4842. [PMID: 35425493 PMCID: PMC8981249 DOI: 10.1039/d1ra09177h] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 01/31/2022] [Indexed: 12/29/2022] Open
Abstract
A composite of cuttlefish ink-based carbon quantum dots@Ag/MXene (CQD@Ag/MXene) was firstly synthesized by solvothermal method as a catalyst for reduction of p-nitrophenol (PNP) to p-aminophenol (PAP). CQD@Ag/MXene was characterized by scanning electron microscopy (SEM), field emission transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman. The results show that loading on 2D material MXene can prevent the aggregation of CQD@Ag and expose more active sites, which contributes to a superior catalytic activity with a pseudo-first-order rate constant k (2.28 × 10-2 s-1) and mass-normalized rate constant k m (5700 s-1 g-1), nearly 2 times higher than CQD@Ag without MXene (k = 1.09 × 10-2 s-1 and k m = 2725 s-1 g-1). Besides, CQD@Ag/MXene showed excellent reusability which even retained about 65% activity in successive 10 cycles. The high adsorption rate to PNP and the promotion of forming H radicals may be the reason for the outstanding catalytic activity of CQD@Ag/MXene. CQD@Ag/MXene can be a potential candidate in the removal of environmental pollutants due to its facile synthesis and high catalytic efficiency.
Collapse
Affiliation(s)
- Yingxin Chen
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology Guangzhou 510006 P.R. China
| | - Chunli Yang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology Guangzhou 510006 P.R. China
| | - Xiaotong Huang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology Guangzhou 510006 P.R. China
| | - Lu Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology Guangzhou 510006 P.R. China
| | - Na Yu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology Guangzhou 510006 P.R. China
| | - Huan Xie
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology Guangzhou 510006 P.R. China
| | - Zebin Zhu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology Guangzhou 510006 P.R. China
| | - Yong Yuan
- School of Environmental Science and Engineering, Guangdong University of Technology Guangzhou 510006 P.R. China
| | - Lihua Zhou
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology Guangzhou 510006 P.R. China
| |
Collapse
|
5
|
Palladium nanoparticles embedded over chitosan/γMnO2 composite hybrid microspheres as heterogeneous nanocatalyst for effective reduction of nitroarenes and organic dyes in water. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122284] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
6
|
Shen J, Zuo L, Meng Y, Fu T, Chi L, Wang T, Liu J. Amphiphilic ionic liquid assembly route for the synthesis of polymer/Ag spheres and Ag-decorated bimodal porous silica. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
7
|
Lu Q, An J, Duan Y, Luo Q, Yin R, Li X, Tang C, Wang D. A strategy for preparing efficient Ag/p-BNNS nanocatalyst with a synergistic effect between Ag and p-BNNS. J Catal 2021. [DOI: 10.1016/j.jcat.2021.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
8
|
Tang Y, Zhang Z, Yang S, Smith GJ, Liu L. Diatomite encapsulated AgNPs as novel hair dye cosmetics: Preparation, performance, and toxicity. Colloids Surf B Biointerfaces 2021; 200:111599. [PMID: 33571866 DOI: 10.1016/j.colsurfb.2021.111599] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 01/17/2021] [Accepted: 01/26/2021] [Indexed: 11/18/2022]
Abstract
Naturally-occurring diatomite has been successfully utilised as a unique encapsulating material to obtain a highly dispersed suspension of uniformly-sized silver nanoparticles (AgNPs). Plant derived gallic acid was used as the reducing and capping agent. High-resolution scanning and transmission electron microscopy results confirmed the attachment of AgNPs on the surface of diatom frustule and maintained an excellent dispersion stability against particle aggregation. The AgNPs obtained were employed for the colouration of bleached human hair owing to the local surface plasmonic absorption (LSPR) of the AgNPs. The effects of Ag/diatomite concentration, dyeing pH, temperature and time on the produced colour were investigated. Hair fibres treated under optimised conditions display good colour fastness toward solar radiation. The morphology and chemical composition of AgNP-dyed hair were determined by energy-dispersive spectroscopy, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy analyses. The biocompatibility of the Ag/diatomite composite, AgNPs, and the dyebaths were confirmed by in vitro acute dermal and ocular toxicity tests. The diatomite supporting AgNPs therefore hold good promise and enormous potential to be exploited for sustainable dyeing of human hair.
Collapse
Affiliation(s)
- Ying Tang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China; Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China.
| | - Zhaolun Zhang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China; Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China.
| | - Shuyan Yang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China; Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China.
| | - Gerald J Smith
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Lei Liu
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China; Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China.
| |
Collapse
|
9
|
Kip Ç. A Magnetic Plasmonic Catalyst Based on Monodisperse-Porous Silica Microspheres for Rapid Reduction of 4-Nitrophenol. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-019-01337-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
10
|
Ultrafine copper nanoparticles anchored on reduced graphene oxide present excellent catalytic performance toward 4-nitrophenol reduction. J Colloid Interface Sci 2020; 566:265-270. [DOI: 10.1016/j.jcis.2020.01.097] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/19/2020] [Accepted: 01/24/2020] [Indexed: 11/22/2022]
|
11
|
Silver nanoparticles-decorated-Co3O4 porous sheets as efficient catalysts for the liquid-phase hydrogenation reduction of p-Nitrophenol. J Colloid Interface Sci 2019; 551:261-269. [DOI: 10.1016/j.jcis.2019.05.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/04/2019] [Accepted: 05/04/2019] [Indexed: 12/17/2022]
|
12
|
Li B, Li X, Shao C, Li X, Liu H, Yang S, Tao R, Liu Y. Hierarchically Porous In2O3/In2S3 Heterostructures as Micronano Photocatalytic Reactors Prepared by a Novel Polymer-Assisted Sol–Gel Freeze-Drying Method. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01975] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bing Li
- Center for Advanced Optoelectronic Functional Materials Research, and Key Lab of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Xiaowei Li
- Center for Advanced Optoelectronic Functional Materials Research, and Key Lab of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Changlu Shao
- Center for Advanced Optoelectronic Functional Materials Research, and Key Lab of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Xinghua Li
- Center for Advanced Optoelectronic Functional Materials Research, and Key Lab of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Haiyang Liu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Lab of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Shu Yang
- Center for Advanced Optoelectronic Functional Materials Research, and Key Lab of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Ran Tao
- Center for Advanced Optoelectronic Functional Materials Research, and Key Lab of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Yichun Liu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Lab of UV-Emitting Materials and Technology, Northeast Normal University, Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| |
Collapse
|
13
|
Wang Q, Steinbock O. Flow‐Assisted Self‐Organization of Hybrid Membranes. Chemistry 2019; 25:10427-10432. [DOI: 10.1002/chem.201901595] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/15/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Qingpu Wang
- Department of Chemistry and Biochemistry Florida State University Tallahassee Florida 32306-4390 USA
| | - Oliver Steinbock
- Department of Chemistry and Biochemistry Florida State University Tallahassee Florida 32306-4390 USA
| |
Collapse
|
14
|
Machado GE, Pereyra AM, Rosato VG, Moreno MS, Basaldella EI. Improving the biocidal activity of outdoor coating formulations by using zeolite-supported silver nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:789-799. [PMID: 30813085 DOI: 10.1016/j.msec.2019.01.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 11/10/2018] [Accepted: 01/08/2019] [Indexed: 01/20/2023]
Abstract
Zeolite/nanoparticle composites are synthesized and used as additive for waterborne formulations in replacement of traditional isothiazolinone-based biocides. Silver nanoparticles dispersed onto micrometer-sized crystals of A-type zeolite were prepared by thermal treatment or chemical reduction methods applied to the Ag-exchanged zeolite. The antifungal efficiency against Trichoderma sp. of waterborne outdoor coatings containing the supported silver nanoparticles, measured in terms of inhibition halo development, shows similar results to those obtained by using traditional organic biocides, the type, size and size distribution of the nanoparticles being the main factors affecting the biocidal action of the prepared coatings.
Collapse
Affiliation(s)
- Gladys E Machado
- Universidad Tecnológica Nacional-Facultad Regional La Plata, 60 esq. 124, 1900 La Plata, Argentina
| | - Andrea M Pereyra
- Universidad Tecnológica Nacional-Facultad Regional La Plata, 60 esq. 124, 1900 La Plata, Argentina; CINDECA, CCT-La Plata-CONICET, CIC-Universidad Nacional de La Plata, 47 Np. 257, B1900AJK La Plata, Argentina.
| | | | - Mario S Moreno
- Centro Atómico Bariloche, 8400 San Carlos de Bariloche, Argentina
| | - Elena I Basaldella
- CINDECA, CCT-La Plata-CONICET, CIC-Universidad Nacional de La Plata, 47 Np. 257, B1900AJK La Plata, Argentina
| |
Collapse
|
15
|
Kayal U, Mohanty B, Bhanja P, Chatterjee S, Chandra D, Hara M, Kumar Jena B, Bhaumik A. Ag nanoparticle-decorated, ordered mesoporous silica as an efficient electrocatalyst for alkaline water oxidation reaction. Dalton Trans 2019; 48:2220-2227. [DOI: 10.1039/c8dt04159h] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ag NPs were decorated on the surface of a functionalized SBA-15 material and the resulting AgNPs@SBA-NH2 material showed excellent OER activity for electrochemical water oxidation under alkaline pH.
Collapse
Affiliation(s)
- Utpal Kayal
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Bishnupad Mohanty
- Colloids and Materials Chemistry Department
- CSIR -Institute of Minerals and Materials Technology
- Bhubaneswar-751013
- India
| | - Piyali Bhanja
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Sauvik Chatterjee
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Debraj Chandra
- World Research Hub Initiative (WRHI)
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Michikazu Hara
- Laboratory for Materials and Structures
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Bikash Kumar Jena
- Colloids and Materials Chemistry Department
- CSIR -Institute of Minerals and Materials Technology
- Bhubaneswar-751013
- India
| | - Asim Bhaumik
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| |
Collapse
|