Novel and Economic Approach for Synthesis of Mesoporous Silica Template and Ordered Carbon Mesoporous By Using Cation Exchange Resin

Samiee, Leila; Tasharrofi, Saeideh; Hassani, Sedigheh Sadegh; Fardi, Milad; Mazinani, Babak

doi:10.2174/1573413713666170616093238

Cited by 5 publications

(3 citation statements)

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“…Figure a, i and ii, and b, i and ii, display the TEM images of the synthesized MC and MC/TiO 2 NP nanocomposite, respectively. Figure a, i and ii, with a magnification of 100 and 50 nm confirms the structure of mesoporous carbon with a high surface area for Pb 2+ to bind to the surface. − The spherical structures are noted in Figure b, i and ii, with a magnification of 50 and 100 nm; the black color denotes mesoporous carbon coated on white particles of TiO 2 NPs and therefore more binding sites on the surface of the adsorbent. The MC/TiO 2 NP nanocomposite consists of a 5 nm length and 5 nm width, and this confirms the nanomaterial range and the binding of MC to TiO 2 NPs, and the results agree with XRD.…”

Section: Resultsmentioning

confidence: 58%

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

et al. 2023

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The removal of toxic heavy metals from wastewater through the use of novel adsorbents is expensive. The challenge arises after the heavy metal is removed by the adsorbent, and the fate of the adsorbent is not taken care of. This may create secondary pollution. The study aimed to prepare mesoporous carbon (MC) from macadamia nutshells coated with titanium dioxide nanoparticles (TiO2 NPs) using a hydrothermal method to remove Pb2+ and to test the effectiveness of reusing the lead-loaded spent adsorbent (Pb2+-MC/TiO2 NP nanocomposite) in blood fingerprint detection. The samples were characterized using SEM, which confirmed spherical and flower-like structures of the nanomaterials, whereas TEM confirmed a particle size of 5 nm. The presence of functional groups such as C and Ti and a crystalline size of 4 nm were confirmed by FTIR and XRD, respectively. The surface area of 1283.822 m2/g for the MC/TiO2 NP nanocomposite was examined by BET. The removal of Pb2+ at pH 4 and the dosage of 1.6 g/L with the highest percentage removal of 98% were analyzed by ICP-OES. The Langmuir isotherm model best fit the experimental data, and the maximum adsorption capacity of the MC/TiO2 NP nanocomposite was 168.919 mg/g. The adsorption followed the pseudo-second-order kinetic model. The ΔH° (−54.783) represented the exothermic nature, and ΔG° (−0.133 to −4.743) indicated that the adsorption process is spontaneous. In the blood fingerprint detection, the fingerprint details were more visible after applying the Pb2+-MC/TiO2 NP nanocomposite than before the application. The reuse application experiments showed that the Pb2+-MC/TiO2 NP nanocomposite might be a useful alternative material for blood fingerprint enhancement when applied on nonporous surfaces, eliminating secondary pollution.

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Section: Resultsmentioning

confidence: 58%

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

et al. 2023

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“…10,11 Nanocasting involves using various templates (colloids or mesoporous silica), which has proven to be particularly efficient. 12 However, the removal of silica requires the toxic hydrofluoric acid, which renders the complex and nonenvironment-friendly process. Consequently, recent studies have investigated the feasibility for synthesizing porous carbons using nanoparticles as templates, for example, magnesium and calcium salts, such as magnesium acetate, 13 calcium citrate, 14 and calcium carbonate.…”

Section: Introductionmentioning

confidence: 99%

“…Multiporous carbons have high potential in applications such as fuel cells, hydrogen storage devices, dye adsorption, and energy storage devices . Many methods have been used for the preparation of porous carbon materials, including catalytic activation, polymer blend carbonization, organic aerogel carbonization, and nanocasting. , Nanocasting involves using various templates (colloids or mesoporous silica), which has proven to be particularly efficient . However, the removal of silica requires the toxic hydrofluoric acid, which renders the complex and nonenvironment-friendly process.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Multiporous Carbons from the Water Caltrop Shell for High-Performance Supercapacitors

et al. 2020

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In this study, an economic, sustainable, and green synthesis method of multiporous carbons from agricultural waste, water caltrop shell (denoted as WCS), was presented. To prepare the WCS biochar, the dried WCS was first carbonized to a microporous carbon with a surface area of around 230 m2 g–1 by using a top-lit-updraft method. Then, the microporous WCS biochar was directly mixed with an appropriate amount of ZnO nanoparticles and KOH as activating agents via a solvent-free physical blending route. After further activation at 900 °C, the resulted carbons possess both micropores and mesopores that were named as WCS multiporous carbons. The carbon yield of the prepared WCS multiporous carbons with high surface area in the range of 1175–1537 m2 g–1 is up to 50%. Furthermore, the micropore/mesopore surface area ratio can be simply tuned by controlling the ZnO content. For supercapacitor applications, the as-prepared WCS multiporous carbon electrodes showed high specific capacitance (128 F g–1 at 5 mV s–1) with a good retention rate at 500 mV s–1 scan rate (>60% compared to the capacitance at 5 mV s–1) and low Ohmic resistance in a 1.0 M LiClO4/PC electrolyte. In addition to the ZnO nanoparticles, CaCO3 nanoparticles with low environmental impact were also used to prepare the WCS multiporous carbons. The assembled supercapacitors also demonstrate high specific capacitance (102 F g–1 at 5 mV s–1) and good retention rate (∼70%).

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Ordered porous carbon preparation by hard templating approach for hydrogen adsorption application

Asasian‐Kolur

Sharifian

Haddadi

et al. 2023

Biomass Conv. Bioref.

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Novel and Economic Approach for Synthesis of Mesoporous Silica Template and Ordered Carbon Mesoporous By Using Cation Exchange Resin

Cited by 5 publications

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Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Synthesis of Multiporous Carbons from the Water Caltrop Shell for High-Performance Supercapacitors

Ordered porous carbon preparation by hard templating approach for hydrogen adsorption application

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Novel and Economic Approach for Synthesis of Mesoporous Silica Template and Ordered Carbon Mesoporous By Using Cation Exchange Resin

Cited by 5 publications

References 0 publications

Synthesis and Characterization of MC/TiO2 NPs Nanocomposite for Removal of Pb2+ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Synthesis and Characterization of MC/TiO2 NPs Nanocomposite for Removal of Pb2+ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Synthesis of Multiporous Carbons from the Water Caltrop Shell for High-Performance Supercapacitors

Ordered porous carbon preparation by hard templating approach for hydrogen adsorption application

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Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection