Magnetic fluids for synthesis of the stable adduct -Fe2O3/CTAB/Clay

Ma, Xuchu; Xu, Fen; Chen, Li‐Yong; Zhang, Zude; Du, Yi; Xie, Yi

doi:10.1016/j.jcrysgro.2005.03.002

Cited by 15 publications

(11 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…FT-IR spectrum of B-CTAB-Fe shows that the heat of the pillaring process did not cause the CTAB degradation. The vibrational absorption peak of the Fe-O band, which should be observed at 1,020 cm -1 , is covered by a strong montmorillonite peak (Ma et al 2005).…”

Section: Resultsmentioning

confidence: 94%

See 1 more Smart Citation

Synthesis and characterization of solid-state Fe-exchanged nano-bentonite and evaluation of methyl orange adsorption

Hajipour

Ghorbanpour

Safajou-Jahankhanemlou

2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

A new adsorbent was synthesized using ion-exchange between iron salts and bentonite modified with acetyl trimethylammonium bromide (CTAB) in the solid phase. Ion exchange was performed in the solid-state at a temperature of 100 ° C for 2 min. Various analyzes such as X-ray diffraction (XRD), scanning electron microscopy (SEM), porosity measurement (BET), infrared Fourier transform (FT-IR), transmission electron microscopy (TEM), X-ray energy diffraction (EDX), and thermal weighing (TGA) were used to characterize the synthesized nano-adsorbents. Under optimal conditions (pH = 7, time 60 min, concentration of dye solution 150 ppm, and amount of nano-adsorbent 0.75 g / l), the modified nano-adsorbent absorbed 73% of the methyl orange (MO) dye. Adsorption isotherm studies and kinetic model showed that the pseudo-second-order model and Langmuir equation agree with the obtained results. After three reductions of the modified nano-adsorbent in the photo-Fenton process, the dye absorption percentage was 69.50%.

show abstract

Section: Resultsmentioning

confidence: 94%

“…To increase the adsorption capacity of bentonite; can be used thermal activation (Al-Asheh et al 2003), acid activation (Hussin et al 2011), ion exchange (Hadjltaief et al 2014), Simultaneous modification with surfactant (Huang et al 2017) and pillaring (Ma et al 2005).…”

mentioning

confidence: 99%

Synthesis and characterization of solid-state Fe-exchanged nano-bentonite and evaluation of methyl orange adsorption

Hajipour

Ghorbanpour

Safajou-Jahankhanemlou

2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…It is known that the impact strength of a composite is highly influenced by interfacial bond strength, matrix, and fiber properties. [23] The results show that the impact strength increases as the kenaf fiber loading is increased. All samples display significantly higher strength than those without kenaf fiber.…”

Section: Resultsmentioning

confidence: 95%

“…The new peaks detected for CTAB-MMT, 2852 and 2924 cm -1 , are assigned to stretching vibrations for -CH 2 and -CH 3 groups. [23] This indicates the presence of CTAB, in the form of long alkyl chain on the MMT.…”

Section: Resultsmentioning

confidence: 96%

Ultra-Violet Radiation-Cured Biofiber Composites from Kenaf: The Effect of Montmorillonite on the Flexural and Impact Properties

Rozman

Rozyanty

Musa

et al. 2010

Journal of Wood Chemistry and Technology

View full text Add to dashboard Cite

Biofiber composites, cured by ultra-violet (UV) radiation were produced using kenaf fibers as the reinforcing agent and unsaturated polyester as the matrix. This research work focused on the effects of the incorporation of kenaf fiber, montmorillonite (MMT), and cetyl trimethyl ammonium bromide-modified MMT (CTAB-MMT) in the unsaturated polyester composite. Overall, the incorporation of kenaf fibers in the form of mat had improved the flexural and impact properties of the composites. Addition of MMT into the kenaf fiber-polyester system showed an improvement up to 1% MMT after which it decreased. The increase was attributed to better stress transfer mechanism in the matrix. However, further increase in the MMT loading had resulted in the decrease in the properties, which was believed to be due to agglomeration. Modification of MMT with CTAB had produced composites with higher flexural and impact properties as compared to those without modification. This was attributed to a combination of effective dispersion of MMT in the matrix, availability of effective high aspect ratio MMT, and enhanced compatibility between CTAB-MMT with the matrix.

show abstract

“…Additionally, interests have been aroused in the applications of preferential intercalation in the layered materials as a novel, cost effective and environmentally friendly separation science [13][14][15][16], which gives us the inspiration that sodium montmorillonite may be considered as a suitable matrix with flexibility and processability because of its unique properties and applications [17][18][19][20]. Combined with our previous work of g-Fe 2 O 3 /CTAB/Clay [21], we extend an effective method to prepare the stable adducts InP/ CTAB/Clay that are composed of the alternating layers of InP/CTAB polyelectrolytes and montmorillonite clay platelets. Here, the monodispersed InP nanoparticles can be stabilized by CTAB molecules owing to the formation of InP/CTAB polyelectrolytes species.…”

Section: Introductionmentioning

confidence: 99%