Silica materials recovered from photonic industrial waste powder: Its extraction, modification, characterization and application

Lin, Liang-Yi; Kuo, Jien Ting; Bai, Hsun-Ling

doi:10.1016/j.jhazmat.2011.05.011

Cited by 11 publications

(18 citation statements)

References 26 publications

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“…Our past research explored MSNs synthesized from the extraction of waste from the manufacture of LCD panels as an excellent CO 2 adsorbent. 19,20 Synthesized MSNs possessed mesoporous properties of about 100 nm in average diameter, a surface area of 788 m 2 /g, a uniform pore size distribution of 3.8 nm, and a pore volume of up to 1.04 cm 3 /g. MSNs were capable of encapsulating hydrophobic chemotherapeutic drugs including MTx and CPT, and after exposure to simulated biofluids, the ordered structure was degradable.…”

Section: Resultsmentioning

confidence: 99%

“…The functionalized process avoids nonspecific drug distribution throughout the body and minimizes side effects, while improving the therapeutic efficacy. 18 Lin et al 19,20 successfully recycled wastes from the liquid crystal display (LCD) industry as a silica precursor, and synthesized an efficient mesoporous adsorbent for CO 2 capture. Moreover, the other elements also ensured that no significant residuals were present in the MSNs.…”

Section: Introductionmentioning

confidence: 99%

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Mesoporous silica nanoparticles synthesized from liquid crystal display manufacturing extracts as a potential candidate for a drug delivery carrier: evaluation of their safety and biocompatibility

Lin¹,

Lin²,

Gao³

et al. 2013

IJN

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Mesoporous silica nanoparticles (MSNs) were synthesized as a promising drug delivery carrier due to the large surface area and porous characteristics. Our previous study successfully recycled wastes from the liquid crystal display (LCD) industry as the silica precursor. In this study, we substantiated the possibility of applying this material as a drug carrier. MSNs synthesized from the extraction of wastes from the manufacture of LCD panels were characterized as having an average diameter of 100 nm, a surface area of 788 m2/g, a uniform pore size distribution of 3.8 nm, and a pore volume of up to 1.04 cm3/g. Methotrexate and camptothecin were entrapped in MSNs at about 33.88% and 75.12%, respectively. The cell viability assay demonstrated that MSNs at 1 μg/mL had no significant influence on human lung fibroblast (WI-38) cells or ovarian cancer (ES-2) cells. A lactate dehydrogenase assay also indicated no inflammation occurred. Moreover, a hemolytic erythrocyte test indicated that the dose range of <100 μg/mL showed that 5% of erythrocytes were affected. After exposure to biofluids, the ordered structure was slightly degraded. The results revealed that MSNs synthesized from extraction of wastes from the manufacture of LCD panels had a good entrapment capacity for hydrophobic drugs and controllable safety conditions; they may be applied as a drug delivery carrier.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mesoporous silica nanoparticles synthesized from liquid crystal display manufacturing extracts as a potential candidate for a drug delivery carrier: evaluation of their safety and biocompatibility

Lin¹,

Lin²,

Gao³

et al. 2013

IJN

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“…The obtained silicate supernatant was used as the silica source for the synthesis of MCM-41, with detailed procedures described in our prior study. 1 The molar composition of the gel mixture was 1 SiO 2 /0.2 CTAB/120 H 2 O/0.89 H 2 SO 4 . The MCM-41 material using silicate supernatant derived from the alkaline fusion process was denoted as MCM-41(AF).…”

Section: ■ Exprerimental Sectionmentioning

confidence: 99%

“…A significant quantity of silicon (Si)-containing waste powder is generated from photonic and semiconductor industries because of the growing markets. 1 The waste powders have problems of treatment and disposal because of their light-density and bulky volume. In general, the primary components contained in photonic waste powder are sub-micrometer SiO 2 particles as well as F-and N-related compounds.…”

Section: ■ Introductionmentioning

confidence: 99%

Efficient Method for Recycling Silica Materials from Waste Powder of the Photonic Industry

Lin

Bai

2013

Environ. Sci. Technol.

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An efficient and economic approach is proposed for the fast and direct recovery of silica materials from photonic waste powder. Unlike the conventional alkaline fusion method for the extraction of silica from waste materials, this method possesses advantages of a rapid and low-energy-consumed process with total recovery yield. The obtained mesoporous silica material, denoted as MCM-41(DU)-F, was recovered directly from photonic waste powder at room temperature with the assistance of cationic surfactant, hydrofluoric acid, and ammonia hydroxide. The recycled MCM-41(DU)-F with a high specific surface area (788 m(2)/g), ordered mesoporous structure (4.5 nm), and large pore volume (1.1 cm(3)/g) was used as support of tetraethylenepentamine (TEPA) for the capture of CO2 from a flue gas stream. The results demonstrated that TEPA-impregnated MCM-41(DU)-F had an adsorption capacity of 120 mg of CO2/g of adsorbent. This is higher than the amount adsorbed by TEPA-MCM-41(NaSi) made from pure chemicals (113 mg of CO2/g of adsorbent) and TEPA-MCM-41(AF) made from alkaline fusion (112 mg of CO2/g of adsorbent) under the same testing conditions. This novel recycling process, which can improve cost effectiveness for the mass production of valuable mesoporous silica materials from cheap and abundant resources through convenient preparation steps, is surely beneficial from the viewpoint of economical use of photonic industrial waste powder.

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“…In recent years and for economical and environmental considerations, researchers have being studying the possibility of replacing these laboratory reagents with raw materials that are widely available and inexpensive. Therefore, studies have reported the synthesis of mesoporous materials from halloysite [15], diatomite [16], kaolin [17], bentonite [18,19], coal fly ash [20], bottom ash [21,22], iron-ore tailing [23], copper-ore tailing [24], photonic waste [25,26], resin ash [27], husk ash [28,29], sedge ash [30], miscanthus ash [31], and volclay [32].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Lewis Acidity between Al-MCM-41 Pure Chemicals and Al-MCM-41 Synthesized from Bentonite

Ali-Dahmane

Brahmi

Hamacha

et al. 2019

Bull. Chem. React. Eng. Catal.

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This study focused on the Lewis acidity of Al-MCM-41 prepared from bentonite (Al-MCM-bentonite) as silica and aluminum source simultaneously. This acidity was compared with Al-MCM-41 synthesized from pure chemicals reagents (Al-MCM-standard). Structural analysis showed that the substitution of the silicon atom by the aluminum atom decreases the structural order of Al-MCM-standard, whereas Al-MCM-bentonite has a better structural organization. The Lewis acidity of the Al-MCM-bentonite was evaluated in allylation reaction of benzaldehyde with allyltrimethylsilane and pyridine adsorption experiments. The results showed that the difference in acidity between Al-MCM-standard and Al-MCM-bentonite is due to the amount of aluminum incorporated into the framework of our mesoporous materials. According to the EDX analysis, the incorporation of aluminum in Al-MCM-standard (Si/Al = 13.47) is more important than in Al-MCM-bentonite (Si/Al = 43.64). This explains the low acidity of Al-MCM-bentonite, and the moderate yields in the allylation reactions of benzaldehyde with allyltrimethylsilane.

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Silica materials recovered from photonic industrial waste powder: Its extraction, modification, characterization and application

Cited by 11 publications

References 26 publications

Mesoporous silica nanoparticles synthesized from liquid crystal display manufacturing extracts as a potential candidate for a drug delivery carrier: evaluation of their safety and biocompatibility

Mesoporous silica nanoparticles synthesized from liquid crystal display manufacturing extracts as a potential candidate for a drug delivery carrier: evaluation of their safety and biocompatibility

Efficient Method for Recycling Silica Materials from Waste Powder of the Photonic Industry

Comparison of Lewis Acidity between Al-MCM-41 Pure Chemicals and Al-MCM-41 Synthesized from Bentonite

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