Influence of calcination temperature on the structural, adsorption and photocatalytic properties of TiO2 nanoparticles supported on natural zeolite

Sun, Qing; Hu, Xiaolong; Zheng, Shuilin; Sun, Zhiming; Liu, Shushu; Li, Hui

doi:10.1016/j.powtec.2014.12.052

Cited by 103 publications

(37 citation statements)

References 52 publications

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“…We also showed that there was a decrease in the intensity of the peaks of the composite material which is due to the calcination procedure. Similar results have been obtained using zeolitic supports when increasing the calcination temperature in the 300-500°C range [37]. This decrease in intensity also may be due to interactions between the precursor of TiO 2 and SAPO-34 support.…”

Section: Photocatalytic Degradation Of Mbsupporting

confidence: 84%

“…The disorder of the zeolite framework also causes a decrease in the crystallinity of zeolite, this phenomenon has already been observed on different types of zeolites [40]. The works of Sun et al have demonstrated that the increase of temperature of calcination does not only affect the zeolite framework but also affects the adsorption behavior and photocatalytic [37].…”

Section: Introductionmentioning

confidence: 86%

“…In order to improve these properties, several attempts have been proposed for the immobilization of TiO 2 on different supports such as clay [27], silica's [28], polymer [29], activated carbon [30], zeolite [31]… Zeolites are interesting support materials due to their high surface area, uniform pores, unique structures, an excellent adsorption and high thermal stability [32]. To date several zeolites have been used as supports for TiO 2 particles such as ZSM-11 [32], Beta [33], Y and X zeolite [34,35], and natural zeolites [36,37]. In general the increase of the calcination temperature leads to the transformation of amorphous TiO 2 to the anatase or rutile phase [36], but for the preparation of composite TiO 2 /zeolite it is possible to destroy the original framework of the support [37], due to the thermal dehydration of zeolites [37][38][39].…”

Section: Introductionmentioning

confidence: 99%

“…To date several zeolites have been used as supports for TiO 2 particles such as ZSM-11 [32], Beta [33], Y and X zeolite [34,35], and natural zeolites [36,37]. In general the increase of the calcination temperature leads to the transformation of amorphous TiO 2 to the anatase or rutile phase [36], but for the preparation of composite TiO 2 /zeolite it is possible to destroy the original framework of the support [37], due to the thermal dehydration of zeolites [37][38][39]. The disorder of the zeolite framework also causes a decrease in the crystallinity of zeolite, this phenomenon has already been observed on different types of zeolites [40].…”

Section: Introductionmentioning

confidence: 99%

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Structural and textural features of TiO2/SAPO-34 nanocomposite prepared by the sol–gel method

et al. 2016

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This paper focuses on the synthesis of nanocomposite materials TiO 2 /SAPO-34 using the sol-gel method, which involves preparing a mixture between as-synthesized or calcined SAPO-34 zeolite and TiO 2 gel under hydrothermal crystallization and then calcined at 400 °C for the formation of TiO 2 anatase phase. The structural and textural features of the obtained materials were determined by various physico-chemical techniques such as thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electronic microscopy (SEM), Nitrogen sorption at 77 K, energy dispersive X-ray analysis (EDX) and ultravioletvisible (UV-vis). The DRX results showed that calcination at 400 °C of the mixture between calcined SAPO-34 and TiO 2 gel led to the collapse of the original framework of zeolite but forms the anatase TiO 2 in a nano-spherical morphology, but the use of as-synthesized SAPO-34 supports provides a mixture phase between SAPO-34 and TiO 2 anatase after calcination. The photocatalytic properties of SAPO-34/TiO 2 andTiO 2 type materials were tested for the removal of methylene blue (MB) dye. The MB degradation proved to be increasing as a function of contact time, catalyst mass and the initial concentration of MB.

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Section: Photocatalytic Degradation Of Mbsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structural and textural features of TiO2/SAPO-34 nanocomposite prepared by the sol–gel method

et al. 2016

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“…[19] reported that the surface area decrease after high temperature (800 o C) affect that strike the surface area change due to sintering of the silica matrix but not to change the titania form. According to Sun et al [20], the improvement of the crystallinity of TiO2 was related to the high calcination temperature. TiO2 have a predominant crystal structure of anatase type crystal phase (Figure 2).…”

Section: Bulletin Of Chemical Reaction Engineering and Catalysis 11 (2mentioning

confidence: 99%

Effect of Calcination Temperature on Performance of Photocatalytic Reactor System for Seawater Pretreatment

Kan

Roslan

Isha

2016

Bull. Chem. React. Eng. Catal.

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Conservative desalination technology including distillation requires high energy and cost to operate. Hence, pretreatment process can be done prior to desalination to overcome energy demand and cost reduction. Objective of this research is to study the effect of calcination temperature of hybrid catalyst in photocatalytic reactor system in the seawater desalination, i.e. salt removal in the seawater. The catalyst was synthesized via wet impregnation method with 1:1 weight ratio of TiO2 and activated oil palm fiber ash (Ti:Ash). The catalyst was calcined at different temperature, i.e. 500 o C and 800 o C. The study was carried out in a one liter Borosilicate photoreactor equipped with mercury light of 365 nanometers for two hours with 400 rpm mixing and catalyst to seawater sample weight ratio of 1:400. The Chemical Oxygen Demand (COD), pH, dissolved oxygen (DO), turbidity and conductivity of the seawater were analyzed prior and after the testing. The fresh and spent catalysts were characterized via X-Ray Diffractogram (XRD and Nitrogen physisorption analysis. The calcination temperature significantly influenced the adsorption behaviour and photocatalytic activity. However, Ti:Ash which calcined at 800 o C has less photocatalytic activity. It might be because the surface of fiber ash was sintered after calcined at high temperature. The Ti:Ash catalyst that calcined at 500 o C was found to be the most effective catalyst in the desalination of seawater by reducing the salt concentration of more than 9 % compared to Ti:Ash calcined at 800 o C. It can be concluded that catalyst calcination at 500 °C has better character, performance and economically feasible catalyst for seawater desalination.

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Evaluation of the removal of n‐butanol vapor by the poly(lactic acid)‐zeolite‐TiO₂ composite and formation of by‐products

Miranda

Peglow

Deorristt

et al. 2020

J of Applied Polymer Sci

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The use of polymeric films incorporated with zeolite‐TiO2 composites associated with UV radiation can be an alternative in the removal of volatile organic compounds (VOCs) through the adsorption and photodegradation processes. This study produced poly(lactic acid) (PLA) films incorporated with 13× zeolite, TiO2, and 13×‐TiO2 zeolite composite to remove n‐butanol and evaluate the by‐products generated in the process. The results showed that 13× zeolite and TiO2 added individually or as a composite to PLA, gave the polymer matrix a significant increase in the removal capacity of n‐butanol. The best performance was presented by the zeolite‐TiO2, composite, confirming a synergistic effect. However, the formation of CO and CO2 exceeded the expected values, with the verification that the polymeric matrix underwent photodegradation action by TiO2. The polymeric film only containing zeolite is the most suitable for the removal of VOCs, as it did not present degradation of the PLA, generating a lower concentration of by‐products.

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Influence of calcination temperature on the structural, adsorption and photocatalytic properties of TiO2 nanoparticles supported on natural zeolite

Cited by 103 publications

References 52 publications

Structural and textural features of TiO2/SAPO-34 nanocomposite prepared by the sol–gel method

Structural and textural features of TiO2/SAPO-34 nanocomposite prepared by the sol–gel method

Effect of Calcination Temperature on Performance of Photocatalytic Reactor System for Seawater Pretreatment

Evaluation of the removal of n‐butanol vapor by the poly(lactic acid)‐zeolite‐TiO₂ composite and formation of by‐products

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Influence of calcination temperature on the structural, adsorption and photocatalytic properties of TiO2 nanoparticles supported on natural zeolite

Cited by 103 publications

References 52 publications

Structural and textural features of TiO2/SAPO-34 nanocomposite prepared by the sol–gel method

Structural and textural features of TiO2/SAPO-34 nanocomposite prepared by the sol–gel method

Effect of Calcination Temperature on Performance of Photocatalytic Reactor System for Seawater Pretreatment

Evaluation of the removal of n‐butanol vapor by the poly(lactic acid)‐zeolite‐TiO2 composite and formation of by‐products

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Evaluation of the removal of n‐butanol vapor by the poly(lactic acid)‐zeolite‐TiO₂ composite and formation of by‐products