Comparative study on the adsorption, kinetics, and thermodynamics of the photocatalytic degradation of six different synthetic dyes on TiO2 nanoparticles

Zulmajdi, Siti Lailatul N.; Zamri, Nur Izzah Iwanina; Yasin, Hartini M.; Kusrini, Eny; Hobley, Jonathan; Usman, Anwar

doi:10.1007/s11144-019-01701-x

Cited by 37 publications

(7 citation statements)

References 52 publications

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“…These results show that the surface area of the TiO2 was affected by the incorporation of the dammar gum to the titanium oxide precursor, either as a matrix or a complexation agent. The surface area of the TiO2 obtained from the reaction systems in the presence of the dammar gum was similar to that of the TiO2 reported by other researchers (Zulmajdi et al, 2020). On the other hand, the Barret-Joyner-Halender (BJH) pore size distribution analysis show that the average pore size was not much different in products from reaction systems that used dammar gum compared to those without dammar gum.…”

Section: Resultssupporting

confidence: 86%

Utilization of Dammar-Gum as a Soft Template in Titania Synthesis for Photocatalyst

S¹,

Falahudin²,

Asdim³

et al. 2020

IJTech

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A new synthetic method for the preparation of titania (TiO2) was developed. The synthesis involved utilizing dammar gum as the natural soft template, chloroform (CHCl3) as the reaction solvent, and titanium tetraisopropoxide (TTIP) as the main precursor. The results show that the methodology described herein is an efficient alternative for the preparation of titania with larger surface areas up to 58.1 m 2 g -1 for TiO2 from the TTIP-dammar gum/CHCl3/H2O reaction system, and 56.2 m 2 g -1 for TiO2 from the TTIP-dammar gum/CHCl3 reaction system. Both surface areas are larger than that of the pure TTIP/CHCl3/H2O product (5.56 m 2 g -1 ). In addition, the asprepared TiO2, which uses dammar gum as a soft template, exhibited higher photocatalytic activity toward rhodamine B degradation compared to the as-prepared TiO2 in the absence of dammar gum.

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Section: Resultssupporting

confidence: 86%

Utilization of Dammar-Gum as a Soft Template in Titania Synthesis for Photocatalyst

S¹,

Falahudin²,

Asdim³

et al. 2020

IJTech

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show abstract

“…The dominance of anatase phase in the photoactivity is similar to a previous study, which found that anatase exhibited two times higher catalytic activity compared to rutile phase [30]. In addition, according to Carrera, et al [31], anatase is thermodynamically stable at sizes of less than 11 nm.…”

Section: Uv-vis Spectroscopy Analysissupporting

confidence: 87%

Microwave-assisted Synthesis of Functionalized Multiwalled Carbon Nanotube–Titanium Dioxide Hybrid Structure and Photodegradation

Irmawati¹,

Manzalini

Sugeng³

et al. 2022

J. Eng. Technol. Sci.

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Decoration of a functionalized multiwalled carbon nanotube (f-MWCNT) surface with titanium dioxide (TiO2) was designed to improve its photocatalytic degradation performance. Structural decoration was achieved by microwave heating at various mass ratios (1:2; 1:4; 1:8; 1:16 wt.%) of titanium (IV) isopropoxide as precursor. The hybrid structure of TiO2/f-MWCNT was characterized by scanning electron microscope and transmission electron microscope (TEM). The crystallite form of the TiO2 nanoparticles was further studied by X-ray diffraction (XRD) and HR–TEM. We report the conformation of high-density TiO2 coated on an f-MWCNT surface at a mass ratio of 1:16 wt.%. XRD analysis revealed a structural transformation from mixture phase (anatase–brookite) at mass ratios of 1:2 and 1:4 wt.% to fully anatase phase for mass ratios of 1:8 and 1:16 wt.%. The transformation was also confirmed by selected area electron diffraction (SAED) and HR–TEM analysis. Our results showed that anatase phase plays a significant role in photodegradation activity.

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“…In order to claim the novelty of this work, the well-known photocatalyst TiO 2 is considered for the degradation of MB and CR dyes. 65,66 As shown in Tables S7 46–56 and S8, 57–63 ESI,† ZnO_1 , ZnO_2 and ZnO_3 nanostructures show a comparable degradation efficiency. It is also clear that the photocatalytic activity depends on the morphology of the nanostructures as well.…”

Section: Resultsmentioning

confidence: 90%

“…Considering the hazardous nature of MB and CR dyes, there are various reports in the literature on the degradation of these dyes using ZnO nanostructures in aqueous media. 46–63 Since the photocatalytic degradation of these dyes occurs predominantly on the surface of the photocatalyst, studies on the adsorption of the dyes from aqueous solution onto ZnO particles are relevant and important. The equilibrium concentration of the dye ( C eq ) in contact with the catalyst, instead of that of the feed dye solution, represents the true dye concentration in solution at the start of irradiation.…”

Section: Resultsmentioning

confidence: 99%

Effect of calcination temperature on the morphology and catalytic properties of ZnO nanostructures fabricated from a chiral precursor for photodegradation of both cationic and anionic dyes

et al. 2022

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Comparative study on the adsorption, kinetics, and thermodynamics of the photocatalytic degradation of six different synthetic dyes on TiO2 nanoparticles

Cited by 37 publications

References 52 publications

Utilization of Dammar-Gum as a Soft Template in Titania Synthesis for Photocatalyst

Utilization of Dammar-Gum as a Soft Template in Titania Synthesis for Photocatalyst

Microwave-assisted Synthesis of Functionalized Multiwalled Carbon Nanotube–Titanium Dioxide Hybrid Structure and Photodegradation

Effect of calcination temperature on the morphology and catalytic properties of ZnO nanostructures fabricated from a chiral precursor for photodegradation of both cationic and anionic dyes

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