Ultrasound-assisted synthesis of gold nanoparticles supported on β-cyclodextrin for catalytic reduction of nitrophenols

Nguyen, Cao-Hien; Banh, Kien-Sam; Le, Van-Dung; Nguyen, Minh-Ty; Dang, Chi-Hien; Thien, Tran Vinh; Doan, Van-Dat; Hoang, DongQuy; Kim, Tran Thi; Nguyen, Thanh-Danh

doi:10.1016/j.inoche.2022.109979

Cited by 8 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The thermodynamic prospects for the reduction of 4-NP by NaBH 4 (E 0 (H 3 BO 3 /BH 4 − ) = 1.33 V) are fairly favorable (E 0 (4-NP/4-AP) = − 0.76 V). Despite this, because of the considerable difference in the reduction potentials of NaBH 4 and 4-NP, this interaction was not kinetically reached in the absence of a catalyst (Abdelhameed and El-Shahat 2019 , Din et al 2020 ; Ehsani et al 2023 ; Nguyen et al 2022 ). The noble metal nanoparticles as a catalyst are widely used in the conversion of 4-NP to 4-AP along with NaBH 4 .…”

Section: Resultsmentioning

confidence: 99%

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

Rehan,

Montaser,

El-Shahat

et al. 2024

Environ Sci Pollut Res

View full text Add to dashboard Cite

To effectively remove pharmaceuticals, nitroaromatic compounds, and dyes from wastewater, an efficient multifunctional material was created based on silver nanoparticles (Ag) and MIL-125-NH2 (MOF) immobilized on viscose fibers (VF) as a support substrate. Firstly, silver nanoparticles (Ag) were immobilized on the surface of viscose fibers (VF) via in situ synthesis using trisodium citrate (TSC) as a reducing agent to create (VF-Ag). Then, VF and VF-Ag were decorated with the titanium metal–organic framework MIL-125-NH2 (MOF) to create VF-MOF and VF-Ag-MOF. The influence of VF-Ag, VF-MOF, and VF-Ag-MOF on the sonocatalytic or sonophotocatalytic degradation of sulfa drugs was investigated. The results show that VF-Ag-MOF showed excellent sonocatalytic and sonophotocatalytic activity towards the degradation of sulfa drugs compared to VF-Ag and VF-MOF. Furthermore, sonophotodegradation showed a dramatic enhancement in the efficiency of degradation of sulfa drugs compared to sonodegradation. The sonophotodegradation degradation percentage of sulfanilamide, sulfadiazine, and sulfamethazine drugs in the presence of VF-Ag-MOF was 65, 90, and 95 after 45 min of ultrasonic and visible light irradiation. The catalytic activity of VF-Ag, VF-MOF, and VF-Ag-MOF was evaluated through the conversion of p-nitrophenol (4-NP) to p-aminophenol (4-AP). The results demonstrate that VF-Ag-MOF had the highest catalytic activity, followed by VF-Ag and VF-MOF. The conversion percentage of 4-NP to 4-AP was 69%. The catalytic or photocatalytic effects of VF-Ag, VF-MOF, and VF-Ag-MOF on the elimination of methylene blue (MB) dye were investigated. The results demonstrate that VF-Ag-MOF showed high efficiency in removing the MB dye through the reduction (65%) or photodegradation (71%) after 60 min. VF-Ag-MOF composites structure–activity relationships represent that doping within silver NPs enhanced the photocatalytic activity of MIL-125-NH2, which could be explained as follows: (i) Due to the formation of a Schottky barrier at the junction between MIL-125-NH2 and Ag NPs, the photogenerated electrons in the conduction band of MIL-125-NH2 were supposed to be quickly transferred to the valence band of the Ag NPs, and subsequently, the electrons were transferred to the conduction band of Ag NPs. This considerable electron transferring process, which is reported as Z scheme heterojunction, can efficiently suppress the recombination of electron/hole pairs in VF-Ag-MIL-125-NH2 composites. (ii) Sufficient separation between the photogenerated charge carriers (holes and electrons) and avoiding their recombination enhanced the photocatalytic activity of composites.

show abstract

Section: Resultsmentioning

confidence: 99%

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

Rehan,

Montaser,

El-Shahat

et al. 2024

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…On the other side, the Freundlich model considers that the adsorbent has an energetically heterogeneous surface. 38 In order to well understand the adsorption behaviors of Fe 3 O 4 @PDA-PEI for gold ions, the Langmuir Equation ( 11) and the Freundlich Equation (12) were used to fit the experimental data, respectively 39,40 :…”

Section: Adsorption Isotherm Models Of the Bifunctional Materials Fe ...mentioning

confidence: 99%

“…Banou et al 11 designed a novel catalyst containing gold nanoparticles supported on graphene nanoplates/MgAl‐layered double hydroxide (MgAl‐LDH) nanocomposites by the deposition–precipitation method for high catalytic reduction of 4‐nitrophenol. Nguyen et al 12 fabricated gold nanoparticles for catalytic reduction of nitrophenols using β‐cyclodextrin as a reducing and stabilizing agent under ultrasound irradiation and found that the nanoparticles showed a good catalytic property in reduction of nitrophenols; the rate constants were linear to both concentrations of nitrophenols and amount of catalyst.…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of highly efficient bifunctional polydopamine–polyethyleneimine copolymerization‐modified magnetic material and its effective applications for both adsorption of gold ions and catalytic reduction of 4‐nitrophenol

Wu,

Zhang,

Yin

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

The heavy metal ions and organic pollutants are major harmful substances in wastewater because of their toxicity on human health and environment. Nowadays, the adsorption–catalysis treatment to remove them simultaneously is still a challenge because of their different reaction mechanisms. Herein, a novel bifunctional polymer magnetic material Fe3O4@PDA‐PEI was successfully developed through a facile co‐deposition method by the copolymerization modification of polydopamine (PDA) and polyethyleneimine (PEI) on magnetic ferroferric oxide, which can both be utilized for both heavy metal ion removal from simulated industrial wastewater and further effective catalytic reduction of toxic 4‐nitrophenol (4‐NP) to useful 4‐aminophenol. The maximum adsorption capacity of Fe3O4@PDA‐PEI for gold ions was 465.12 mg/g at 35°C, and the adsorption thermodynamic parameters ΔG, ΔH, and ΔS of Fe3O4@PDA‐PEI (m(PDA):m(PEI) = 2:1) were −5.28 (35°C), 25.58, and 111.30 J K−1 mol−1, respectively. In addition, a sustainable strategy of converting gold ions to gold nanoparticles has been demonstrated for additional catalytic functionality of Fe3O4@PDA‐PEI, and Fe3O4@PDA‐PEI‐Au could effectively catalyze the reduction of 4‐NP at ambient temperature within 9 min. Fe3O4@PDA‐PEI with the advantages of facile fabrication, easy separation, excellent adsorption, and catalysis performance could be used as a promising polymer composite material in complicated wastewater environment. © 2023 Wiley Periodicals LLC.

show abstract

A Xyloside‐Based Ligand to Stabilize Gold Nanoparticles: Preparation and Application

et al. 2023

View full text Add to dashboard Cite

Water‐soluble and air‐stable gold nanoparticles stabilized by a xyloside‐based ligand containing a pyridine ring‐functionalized 1,2,3‐triazole backbone were prepared in the presence of a reducing agent. During their preparation, UV‐vis and NMR spectroscopic techniques were used to study the interaction between the xyloside ligand and Au(III) ions. These AuNPs were characterized by UV‐vis spectroscopy, TEM and DLS and showed a small size (average diameter<10 nm determined by TEM). Their catalytic activity was tested in the reduction of 4‐nitrophenol (4‐NP) to 4‐aminophenol (4‐AP) in water.

show abstract

Ultrasound-assisted synthesis of gold nanoparticles supported on β-cyclodextrin for catalytic reduction of nitrophenols

Cited by 8 publications

References 6 publications

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

Facile fabrication of highly efficient bifunctional polydopamine–polyethyleneimine copolymerization‐modified magnetic material and its effective applications for both adsorption of gold ions and catalytic reduction of 4‐nitrophenol

A Xyloside‐Based Ligand to Stabilize Gold Nanoparticles: Preparation and Application

Contact Info

Product

Resources

About