Biogenic AgNPs for the non-cross-linking detection of aluminum in aqueous systems

Joshi, Priyanka; Nemiwal, Meena; Al‐Kahtani, Abdullah A.; Ubaidullah, Mohd; Kumar, Dinesh

doi:10.1016/j.jksus.2021.101527

Cited by 21 publications

(7 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Alkynes (5), aldehydes (69) and amines (70) were employed to catalyse the A 3 coupling processes using the synthesized catalyst (Cu@MOF-5-C). This is probably the first MOF-derived porous carbon as a catalytic support for the multicomponent synthesis of propargylamines (71). The optimum conditions were 20 mg catalyst in a toluene solvent at 120 °C for 6 hours.…”

Section: Chemistryselectmentioning

confidence: 98%

“…Noble metal nanoparticles exhibit unique potential which can enhance the catalytic performance. [70,71] In order to prepare a Cu-MOF/Au-Pd (VII) complex catalyst, the ultra-fine noble metal Au and Pd nanoparticles were immobilized on the surface of Cu-MOF nanorods using a reduction technique. Alcohols (24) and amines (28) react to synthesize imines (29) when catalyzed by the MOF (VII) catalyst.…”

Section: Cà N Cross-coupling Reactionsmentioning

confidence: 99%

“…Cu‐MOF nanorods are the perfect support for creating supported metal nano catalysts. Noble metal nanoparticles exhibit unique potential which can enhance the catalytic performance [70,71] …”

Section: Coupling Reactions Catalyzed By Cu‐based Mofsmentioning

confidence: 99%

See 2 more Smart Citations

An Exploration on Copper‐Based Metal‐Organic Frameworks as Propitious Heterogeneous Catalyst for Coupling Reactions

et al. 2023

Self Cite

View full text Add to dashboard Cite

Metal‐organic frameworks (MOFs) have been considered as adaptable alternatives of interest in catalytic reactions. Modern MOFs research and advancements strongly support their employment as catalysts to produce significant organic molecules. Concerning how such substances might be utilized in heterogeneous catalysis, the entire potency of MOFs in value‐added organic transformations must be thoroughly investigated. Standard MOFs components including encapsulation materials, linkers, metal‐nodes, and coated structures frequently provide effective catalytic active sites that provide ways to lessen human efforts to implement novel natural reactions. The significant aspects of using MOFs as recyclable catalysts are their convenient fabrication, consistent porosity, substantial pore volume, reusability and durable framework in addition to cost‐effectiveness. Since MOFs were extensively explored, they may have been used to fabricate medicinal active compounds through coupling and organic transformations. In this review, several Cu‐based MOFs are examined along with their catalytic attributes that assist with the selective fabrication of the product organic moieties via various cross‐coupling reactions.

show abstract

Section: Chemistryselectmentioning

confidence: 98%

Section: Cà N Cross-coupling Reactionsmentioning

confidence: 99%

See 1 more Smart Citation

An Exploration on Copper‐Based Metal‐Organic Frameworks as Propitious Heterogeneous Catalyst for Coupling Reactions

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…[52][53][54][55] Due to their high surface-to-volume ratios and highly active surface atoms, nanocatalysts are a promising alternative to conventional. [56][57][58][59][60] Nanocatalysts are of great importance in the context of environmentally conscious science, and in particular for catalysis, due to their nanocatalysts' effectiveness [61][62][63][64][65][66][67] as a coating on silicate, aluminium oxide, titanium dioxide, fiberglass, ceramics, and activated carbon has been the subject of several research during the past decade. [46,[68][69][70][71][72][73][74][75] Nanocatalysts are now widely used to produce heterocyclic compounds.…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide Nanoparticles as Efficient Heterogeneous Catalyst for Synthesis of Bio‐active Heterocyclic Compounds

Kumar,

Tomar,

Kumar

et al. 2023

ChemistrySelect

Self Cite

View full text Add to dashboard Cite

Among the most effective recoverable catalytic systems, metal‐oxide nanoparticles (NPs) are well known for their extensive uses in a broad range of industries, pharmaceuticals, and nano‐biotechnology. In addition, heterogeneous catalysis uses clearly defined materials which are present an extensive range of new possibilities for the research and production of innovative catalysts that help to solve the world's energy and environmental problems. ZnO‐NPs have been used as effective nanocatalysts according to the literature for various kinds of organic reactions. The extensive advantages of ZnO‐NPs over bulk materials suggest that this is a promising field for further research. This review article provides an in‐depth overview of the several ZnO‐NPs that have been reported to catalyse organic transformations including the production of bio‐active compounds like benzofuran, coumarin, imidazole, indole, pyrazole, pyridine pyrimidine, thiazole, diazepine, azoles derivatives. Recent synthetic routes for modifying and functionalizing ZnO‐NPs to increase their catalytic efficacy were also addressed, and illustrated with schematics. The development of novel, highly effective, and reusable modified ZnO‐NPs as catalysts, which would clear the way for the establishment of greener and sustainable technologies, provides the key to the future of catalysis. Researchers attempting to synthesise new functionalized ZnO‐NPs for sustainable development will find this review informative.

show abstract

“…In this regard, the World Health Organization standard for the maximum permissible level of aluminum in drinking water is 200 μg/L . Different spectroscopic and electrochemical methods have been widely used for aluminum detection. − Prior to the detection of trace levels of metal ions, the usage of adsorbents can eliminate or minimize the sample matrix effects and improve the sensitivity of the method . Various types of adsorbents have been used for the removal and detection of metal ions in environmental, biological, and food samples. , Especially in the past decade, adsorbents derived from natural materials such as chitosan, cellulose, carrageenan, and alginate have been widely used for the removal of diverse metal ions. − Different types of self-assembled gel structures have also been employed in several fields, such as biomedical research, tissue engineering, and drug delivery systems for removal of contaminants. − …”

Section: Introductionmentioning

confidence: 99%

Magnetic Hydrogel Beads as a Reusable Adsorbent for Highly Efficient and Rapid Removal of Aluminum: Characterization, Response Surface Methodology Optimization, and Evaluation of Isotherms, Kinetics, and Thermodynamic Studies

İlktaç,

Bayir

2023

ACS Omega

View full text Add to dashboard Cite

Biopolymers such as alginate and gelatin have attracted much attention because of their exceptional adsorption properties and biocompatibility. The magnetic hydrogel beads produced and used in this study had a core structure composed of magnetite nanoparticles and gelatin and a shell structure composed of alginate. The combination of the metal-ion binding ability of alginate and the mechanical strength of gelatin in magnetic hydrogel beads presents a new approach for the removal of metal from water sources. The beads were designed for aluminum removal and fully characterized using various methods, including Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy−energy-dispersive Xray spectroscopy, vibrating sample magnetometry, microcomputed tomography, and dynamic mechanical analysis. Statistical experimental designs were employed to optimize the parameters of the adsorption and recovery processes. Plackett−Burman Design, Box−Behnken Design, and Central Composite Design were used for identifying the significant factors and optimizing the parameters of the adsorption and recovery processes, respectively. The optimum parameters determined for adsorption are as follows: pH: 4, contact time: 30 min, adsorbent amount: 600 mg; recovery time: reagent 1 M HNO 3 ; and contact time: 40 min. The adsorption process was described by using the Langmuir isotherm model. It reveals a homogeneous bead surface and monolayer adsorption with an adsorption capacity of 5.25 mg g −1 . Limit of detection and limit of quantification values were calculated as 4.3 and 14 μg L −1 , respectively. The adsorption process was described by a pseudo-second-order kinetic model, which assumes that chemisorption is the rate-controlling mechanism. Thermodynamic studies indicate that adsorption is spontaneous and endothermic. The adsorbent was reusable for 10 successive adsorption−desorption cycles with a quantitative adsorption of 98.2% ± 0.3% and a recovery of 99.4% ± 2.6%. The minimum adsorbent dose was determined as 30 g L −1 to achieve quantitative adsorption of aluminum. The effects of the inorganic ions were also investigated. The proposed method was applied to tap water and carboy water samples, and the results indicate that magnetic hydrogel beads can be an effective and reusable bioadsorbent for the detection and removal of aluminum in water samples. The recovery values obtained by using the developed method were quantitative and consistent with the results obtained from the inductively coupled plasma optical emission spectrometer.

show abstract

Biogenic AgNPs for the non-cross-linking detection of aluminum in aqueous systems

Cited by 21 publications

References 36 publications

An Exploration on Copper‐Based Metal‐Organic Frameworks as Propitious Heterogeneous Catalyst for Coupling Reactions

An Exploration on Copper‐Based Metal‐Organic Frameworks as Propitious Heterogeneous Catalyst for Coupling Reactions

Zinc Oxide Nanoparticles as Efficient Heterogeneous Catalyst for Synthesis of Bio‐active Heterocyclic Compounds

Magnetic Hydrogel Beads as a Reusable Adsorbent for Highly Efficient and Rapid Removal of Aluminum: Characterization, Response Surface Methodology Optimization, and Evaluation of Isotherms, Kinetics, and Thermodynamic Studies

Contact Info

Product

Resources

About