A porous aerogel nanocomposite of silver nanoparticles-functionalized cellulose nanofibrils for SERS detection and catalytic degradation of rhodamine B

Chook, Soon Wei; Chia, Chin Hua; Chan, Chi Hoong; Chin, Siew Xian; Zakaria, Sarani; Sajab, Mohd Shaiful; Huang, Nay Ming

doi:10.1039/c5ra18806g

Cited by 55 publications

(18 citation statements)

References 39 publications

(44 reference statements)

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“…Some examples of Ag ENMs used for polluted water treatments are reported in Table 2, pointing out AgNP size and supporting the existence of synergic effects in some cases [61,75,[109][110][111][112]. A large number of innovative hybrid materials with a synergetic or complementary behavior were obtained using Ag-based photocatalysts.…”

Section: Agnps For Water Pollution Monitoring and Treatmentmentioning

confidence: 94%

“…Chook's group adopted this approach for the design of a porous AgNPs/CNF aerogel nanocomposite, which revealed superb performances in detecting and catalyzing the degradation of rhodamine B from water solutions, in the presence of NaBH 4 [112,187]. Similarly, Han et al proposed the reductant-free synthesis of AgNPs-doped cellulose microgels for mediating the reduction of nitrophenols, always by means of NaBH 4 [188].…”

Section: Cellulose Doping With Agnps Generated In Situmentioning

confidence: 99%

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Silver Nanoparticles for Water Pollution Monitoring and Treatments: Ecosafety Challenge and Cellulose-Based Hybrids Solution

et al. 2020

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Silver nanoparticles (AgNPs) are widely used as engineered nanomaterials (ENMs) in many advanced nanotechnologies, due to their versatile, easy and cheap preparations combined with peculiar chemical-physical properties. Their increased production and integration in environmental applications including water treatment raise concerns for their impact on humans and the environment. An eco-design strategy that makes it possible to combine the best material performances with no risk for the natural ecosystems and living beings has been recently proposed. This review envisages potential hybrid solutions of AgNPs for water pollution monitoring and remediation to satisfy their successful, environmentally safe (ecosafe) application. Being extremely efficient in pollutants sensing and degradation, their ecosafe application can be achieved in combination with polymeric-based materials, especially with cellulose, by following an eco-design approach. In fact, (AgNPs)–cellulose hybrids have the double advantage of being easily produced using recycled material, with low costs and possible reuse, and of being ecosafe, if properly designed. An updated view of the use and prospects of these advanced hybrids AgNP-based materials is provided, which will surely speed their environmental application with consequent significant economic and environmental impact.

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Section: Agnps For Water Pollution Monitoring and Treatmentmentioning

confidence: 94%

Section: Cellulose Doping With Agnps Generated In Situmentioning

confidence: 99%

Silver Nanoparticles for Water Pollution Monitoring and Treatments: Ecosafety Challenge and Cellulose-Based Hybrids Solution

et al. 2020

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“…As such AgNPs can act as a suitable catalyst for the reduction of 4-NP. Other studies have also found that polysaccharide-based AgNPs have a significant catalytic activity to reduce pollutants such as 4-NP, methyl orange, methylene blue, and rhodamine B in the presence of NaBH 4 medium [15,152].…”

Section: Catalysis Properties Of Polysaccharide-based Agnpsmentioning

confidence: 99%

Green synthesis of polysaccharide-based inorganic nanoparticles and biomedical aspects

Shavandi¹,

Saeedi

Ali

et al. 2019

Functional Polysaccharides for Biomedical Applications

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“…To date, SERS of AuNPs and AgNPs has been extensively studied [3,4,20,21]. The performance of AuNPs/nanocellulose or AgNPs/nanocellulose nanocomposites as SERS substrates has also been reported in several studies [22,23,24,25,26,27,28,29]. For example, Limei Tian et al [22] described a gravity-assisted filtration method for biosynthesized bacterial nanocellulose based SERS substrate fabrication.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Nanofibers Made of Silver Nanoparticles, Cellulose Nanocrystals, and Polyacrylonitrile as Substrates for Surface-Enhanced Raman Scattering

et al. 2017

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Nanofibers with excellent activities in surface-enhanced Raman scattering (SERS) were developed through electrospinning precursor suspensions consisting of polyacrylonitrile (PAN), silver nanoparticles (AgNPs), silicon nanoparticles (SiNPs), and cellulose nanocrystals (CNCs). Rheology of the precursor suspensions, and morphology, thermal properties, chemical structures, and SERS sensitivity of the nanofibers were investigated. The electrospun nanofibers showed uniform diameters with a smooth surface. Hydrofluoric (HF) acid treatment of the PAN/CNC/Ag composite nanofibers (defined as p-PAN/CNC/Ag) led to rougher fiber surfaces with certain pores and increased mean fiber diameters. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) results confirmed the existence of AgNPs that were formed during heat and HF acid treatment processes. In addition, thermal stability of the electrospun nanofibers increased due to the incorporation of CNCs and AgNPs. The p-PAN/CNC/Ag nanofibers were used as a SERS substrate to detect p-aminothiophenol (p-ATP) probe molecule. The results show that this substrate exhibited high sensitivity for the p-ATP probe detection.

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A porous aerogel nanocomposite of silver nanoparticles-functionalized cellulose nanofibrils for SERS detection and catalytic degradation of rhodamine B

Abstract: Herein, cellulose nanofibrils (CNFs) were functionalised with silver nanoparticles (AgNPs) via a green in situ hydrothermal synthesis approach. The produced nanocomposites were used for the detection and catalytic degradation of rhodamine B.

Cited by 55 publications

References 39 publications

Silver Nanoparticles for Water Pollution Monitoring and Treatments: Ecosafety Challenge and Cellulose-Based Hybrids Solution

Silver Nanoparticles for Water Pollution Monitoring and Treatments: Ecosafety Challenge and Cellulose-Based Hybrids Solution

Green synthesis of polysaccharide-based inorganic nanoparticles and biomedical aspects

Electrospun Nanofibers Made of Silver Nanoparticles, Cellulose Nanocrystals, and Polyacrylonitrile as Substrates for Surface-Enhanced Raman Scattering

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