Supersaturation-controlled growth of polyhedra-assembled anatase TiO2 hollow nanospheres

Ge, Juanjuan; Yang, Ping; Liu, Guiwu; Qiao, Guanjun; Kim, Eui Jung; Wang, Mingsong

doi:10.1016/j.matlet.2016.06.042

Cited by 18 publications

(10 citation statements)

References 19 publications

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“…From the XRD pattern of TiO 2 , the characteristic peaks at 2 θ values of 25.28°, 37.77°, 47.99°, 54.98° and 62.63° represent the crystal planes of (101), (004), (200), (211) and (204) of anatase TiO 2 , respectively, 37 which are in good agreement with the standard JCPDS Card no. 21-1272.…”

Section: Resultssupporting

confidence: 79%

Synthesis and characterization of TiO₂/graphene oxide nanocomposites for photoreduction of heavy metal ions in reverse osmosis concentrate

et al. 2018

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Section: Resultssupporting

confidence: 79%

Synthesis and characterization of TiO₂/graphene oxide nanocomposites for photoreduction of heavy metal ions in reverse osmosis concentrate

et al. 2018

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“…The XRD pattern shows that graphite was completely oxidized to graphene oxide, which indicated by a sharp peak at 10.55 and the absence of a peak at 25 [37]. In addition, TiO 2 was characterized by the presence of peaks at 62.64, 54.99, 48, 37.78, and 25.29, all well matching with the peaks of anatase TiO 2 [38]. The XRD peaks of TiO 2 /GO are similar to that of TiO 2 , however, the graphene oxide peak disappears due to the destroying of GO nanosheets by interaction with TiO 2 .…”

Section: Resultsmentioning

confidence: 90%

A novel synthesis of TiO₂/GO nanocomposite for the uptake of Pb²⁺ and Cd²⁺ from wastewater

Siddeeg

2020

Mater. Res. Express

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Ionic liquids attract attention in the last years due to its powerful solvation properties. For this reason, in current study 1-ethyl-3-methylimidazolium tetrafluoroborate [EMIM-BF 4 ] ILs was used for the synthesis of high surface TiO 2 /GO nanocomposite, as an active material for heavy metal removal from aqueous media. FT-IR, transmission electron microscopy (TEM), scanning electron microscope (SEM), and x-ray diffraction (XRD) techniques were employed for identification of the novel nanocomposite. Batch experiments were conducted for Cd +2 and Pb +2 uptake from wastewater by the synthesized nanocomposite. The effect of parameters affecting adsorption capicity, such as contact time, pH, nanocomposite dosage and the initial concentration of heavy metals were examined for Cd +2 and Pb +2 removal by the prepared nanocomposite. The removal efficiency of Cd +2 and Pb +2 was 69.36% and 89%, respectively, under optimal conditions confirming the ability to use the prepared nanocomposite for wastewater treatment from heavy metals with high efficiency.

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“…Supersaturation control and direct nucleation control are effective ways to optimize the CSD. Crystalline particles with uniform CSDs can be achieved by avoiding nucleation or generating controlled nucleation events. − Thus, process monitoring or the design of the operating curve by predicting and establishing the shape of the distribution during batch crystallization processes is critical . Model-based approaches can be successfully applied for macroscopic modeling of the dynamics of the CSD, as well as for quantitative microscopic prediction of the crystal shape. − Population balance models have been used to model crystallization processes and predict the shape of the CSD in various crystallization processes. − Nagy et al combined the method of characteristics (MOCH) and QMOM to provide an efficient technique for the prediction of the entire CSD during batch crystallization .…”

Section: Introductionmentioning

confidence: 99%

Prediction of the Crystal Size Distribution for Reactive Crystallization of Barium Carbonate under Growth and Nucleation Mechanisms

Zhang

Xiang

2019

Crystal Growth & Design

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For the complex reactive crystallization system of barium carbonate in industrial processes, the crystal size distribution (CSD) is an important factor for high-quality products and determines the efficiency of many downstream operations. Therefore, CSD prediction based on the mechanism model of the reactive crystallization process of barium carbonate is investigated in this work. The dynamic variation of the whole CSD was reconstructed during the growth and nucleation processes of barium carbonate by solving the population balance equations (PBEs) using combination of the method of characteristics (MOCH) with the quadrature method of moments (QMOM). The parameters of crystal nucleation and size-dependent growth model are identified by capturing real-time laboratory experimental data with process analytical technologies (PATs). Meanwhile, the optimal operating conditions for barium carbonate reactive crystallization processes can be determined, and an optimization approach is used to obtain the target CSD at the end of a batch crystallization process. The computational process is evaluated by experimentations and found that experimental CSDs agree with the simulated values. For complicated reactive crystallization processes with supersaturation controlled, the operating conditions influencing the dynamics of this evolution of CSD can be determined for offline crystallization design and online prediction and control.

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Supersaturation-controlled growth of polyhedra-assembled anatase TiO2 hollow nanospheres

Cited by 18 publications

References 19 publications

Synthesis and characterization of TiO₂/graphene oxide nanocomposites for photoreduction of heavy metal ions in reverse osmosis concentrate

Synthesis and characterization of TiO₂/graphene oxide nanocomposites for photoreduction of heavy metal ions in reverse osmosis concentrate

A novel synthesis of TiO₂/GO nanocomposite for the uptake of Pb²⁺ and Cd²⁺ from wastewater

Prediction of the Crystal Size Distribution for Reactive Crystallization of Barium Carbonate under Growth and Nucleation Mechanisms

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Supersaturation-controlled growth of polyhedra-assembled anatase TiO2 hollow nanospheres

Cited by 18 publications

References 19 publications

Synthesis and characterization of TiO2/graphene oxide nanocomposites for photoreduction of heavy metal ions in reverse osmosis concentrate

Synthesis and characterization of TiO2/graphene oxide nanocomposites for photoreduction of heavy metal ions in reverse osmosis concentrate

A novel synthesis of TiO2/GO nanocomposite for the uptake of Pb2+ and Cd2+ from wastewater

Prediction of the Crystal Size Distribution for Reactive Crystallization of Barium Carbonate under Growth and Nucleation Mechanisms

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Synthesis and characterization of TiO₂/graphene oxide nanocomposites for photoreduction of heavy metal ions in reverse osmosis concentrate

Synthesis and characterization of TiO₂/graphene oxide nanocomposites for photoreduction of heavy metal ions in reverse osmosis concentrate

A novel synthesis of TiO₂/GO nanocomposite for the uptake of Pb²⁺ and Cd²⁺ from wastewater