Improving the size uniformity of dendritic fibrous nano-silica by a facile one-pot rotating hydrothermal approach

Wang, Yabin; Hu, Keke; He, Juan; Zhang, Yantu

doi:10.1039/c9ra04845f

Cited by 32 publications

(6 citation statements)

References 65 publications

(93 reference statements)

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“…Since reported, DMSNs have been utilized as apromising platform for various applications such as therapeutic drug delivery [15][16][17] where large pores and small particle size are advantageous.More than 800 papers have been indexed from Recently,dendritic mesoporous silica nanoparticles with widespread applications have attracted great interest. Despite many publications (> 800), the terminology "dendritic" is ambiguous.Understanding what possible "dendritic structures" are,their formation mechanisms and the underlying structureproperty relationship is fundamentally important.…”

Section: Introductionmentioning

confidence: 99%

“…Since reported, DMSNs have been utilized as a promising platform for various applications such as therapeutic drug delivery [15–17] where large pores and small particle size are advantageous. More than 800 papers have been indexed from the Web of Science under the keywords “dendritic mesoporous silica” or “fibrous mesoporous silica” or “radial mesoporous silica”, indicating the growing attention on this type of MSN in recent years.…”

Section: Introductionmentioning

confidence: 99%

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Dendritic Mesoporous Nanoparticles: Structure, Synthesis and Properties

Xu,

Lei,

Wang

et al. 2022

Angew Chem Int Ed

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Recently, dendritic mesoporous silica nanoparticles with widespread applications have attracted great interest. Despite many publications (>800), the terminology “dendritic” is ambiguous. Understanding what possible “dendritic structures” are, their formation mechanisms and the underlying structure–property relationship is fundamentally important. With the advance of characterization techniques such as electron tomography, two types of tree‐branch‐like and flower‐like structures can be distinguished, both described as “dendritic” in the literature. In this Review, we start with the definition of “dendritic”, then provide critical analysis of reported dendritic silica nanoparticles according to their structural classification. We update the understandings of the formation mechanisms of two types of “dendritic” nanoparticles, highlighting how to control their structural parameters. Applications of dendritic mesoporous nanoparticles are also reviewed with a focus on the biomedical field, providing new insights into the structure–property relationship in this family of nanomaterials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dendritic Mesoporous Nanoparticles: Structure, Synthesis and Properties

Xu,

Lei,

Wang

et al. 2022

Angew Chem Int Ed

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“…4, 11, 15, and 25 nm, which could be various nanopores in DFNS as verified by SEM, TEM, and our previous reports. 30 For DFNST sample, the peaks become weaker and even vanish. The corresponding pore volume ( V P ) and BET surface area ( S BET ) are listed in Table 1 .…”

Section: Resultsmentioning

confidence: 98%

Dendritic fibrous nano-silica & titania (DFNST) spheres as novel cataluminescence sensing materials for the detection of diethyl ether

Wang

Zhang

et al. 2019

RSC Adv.

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Selective and controllable cataluminescence (CTL) sensors for volatile organic compounds (VOCs) are significant for chemical safety, environmental monitoring, health effects on human beings, and so forth.Most of the exploited CTL-based sensors suffer relatively low response and poor selectivity because of their high sensitivities to interferential substances. In this investigation, dendritic fibrous nano-silica & titania (DFNST) spheres have been synthesized as novel sensing materials and the corresponding DFNSTbased CTL sensor has been fabricated to detect diethyl ether with high selectivity via a method of utilizing one 440 nm bandpass filter. The as-prepared DFNST hybrids not only keep the excellent dendritic fibrous morphology but also bear ca. 21 wt% catalytic titanium oxide of anatase crystalline structure. The DFNST-based sensor exhibits extremely strong CTL emission at 440 nm toward diethyl ether against other VOCs like acetone, ethyl acetate, butanol, and so forth. The high response can be attributed to the unique architectural texture of DFNST. Under the optimum parameters, ether could be easily detected in a wide range from 2.0 to 40.0 mM with a fine detection limit of 1.55 mM (S/N ¼ 3). Furthermore, the working life of this CTL sensor is satisfactory with outstanding stability and durability, far from damaging the morphology and activity of the DFNST sensing material. In conclusion, it is expected that this novel sensing material, the relevant CTL sensor, and the approach of employing the bandpass filter will be significant for the detection of diethyl ether in actual applications.a Measured by ICP-OES analysis. b Calculated by ICP-OES result; S BET stands for BET surface area; V P is pore volume.39626 | RSC Adv., 2019,9,[39622][39623][39624][39625][39626][39627][39628][39629][39630] This journal is

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“…The ratio of surfactant (CTAB or CPB) to silicone precursor TEOS in the preparation of DFNS by water-oil microemulsion method in past papers was usually 0.21 [51,52] or more [53]. Silmi et al discussed both molar ratios of CTAB/TEOS (0.10-0.65) have an effect on the particle size of DFNS in the water/toluene microemulsion system, and the average particle size increases from 661 to 827 nm with the CTAB/TEOS molar ratio rising from 0.15 to 0.30, and then decreases from 827 to 241 nm with a further increase in the molar ratio of CTAB/TEOS from 0.30 to 0.65.…”

Section: + ¾  +mentioning

confidence: 99%

Tunable synthesis of dendritic fibrous nano silica using 1-pentanol-water microemulsion at low oil to water ratio

Liu¹,

Zhang²,

Chen³

et al. 2022

Nanotechnology

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Dendritic fibrous nanosilica (DFNS) is a suitable nano-carrier for loading pesticides with radially oriented pores and a large surface area. The microemulsion method is standard method to prepare DFNS, and 1-pentanol is taken to replace cyclohexane as an oil solvent due to its high stability and nontoxic property. The results showed that the volume ratio of 1-pentanol (oil) to water (O/W) and the molar ratio of hexadecyltrimethylammonium bromide (CTAB) to tetraethylorthosilicate (TEOS) had effected on morphology and adsorption properties of DFNS in the water-CTAB-1-pentanol-ethanol-trimethylbenzene (TMB) microemulsion system. DFNS with bicontinuous concentric lamellar morphologies can be synthesized in this microemulsion at the meager O/W volume ratio (0.025-0.045). It features a tight mesoporous structure with a thin dendritic fibrous in 0.03 to 0.04 O/W volume ratio. The particle sizes, surface areas, and porosity of DFNS were positively correlated with the addition of the silica precursor TEOS. The size of DFNS increased from 123 nm to about 220 nm with the CTAB/TEOS molar ratio decreasing from 0.119 to 0.050. When the molar ratio of CTAB to TEOS =0.119, DFNS has a smaller particle size(123 nm) with a larger surface area and abundant honeycomb mesopores; the low O/W volume ratio strategy provides theoretical support for the industrialization development of DFNS and nano-pesticides, which plays a profound role in promoting the sustainable development of pesticide reduction, efficiency and green agriculture.

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Improving the size uniformity of dendritic fibrous nano-silica by a facile one-pot rotating hydrothermal approach

Abstract: This article provides a facile, low-cost, and reproducible one-pot rotating hydrothermal approach to synthesize dendritic fibrous nano-silica with outstanding uniformity.

Cited by 32 publications

References 65 publications

Dendritic Mesoporous Nanoparticles: Structure, Synthesis and Properties

Dendritic Mesoporous Nanoparticles: Structure, Synthesis and Properties

Dendritic fibrous nano-silica & titania (DFNST) spheres as novel cataluminescence sensing materials for the detection of diethyl ether

Tunable synthesis of dendritic fibrous nano silica using 1-pentanol-water microemulsion at low oil to water ratio

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