Template-assisted syntheses of two novel porous zirconium methylphosphonates

Wu, Zongbin; Liu, Zhongmin; Tian, Peng; He, Yanli; Xu, Lei; Yang, Yue; Zhang, Yangyang; Bao, Xinhe; Liu, Xiumei; Liu, Xianchun

doi:10.1016/j.micromeso.2005.01.031

Cited by 11 publications

(5 citation statements)

References 41 publications

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“…7 It has been reported that using templates to prepare TiO 2 can gain mesoporous structure. 8 In particular, the organic matrixes with fibrous or tubular structures, such as organogelators, DNA, cellulose, and tobacco mosaic virus, are most often used as templates to synthesize fibrous or tubular TiO 2 . 9 Collagen fiber, one of the most abundant biomasses in the natural world, mainly comes from the skin of domestic animals and is traditionally used as a raw material in leather manufacturing.…”

Section: Introductionmentioning

confidence: 99%

“…But it has been considered difficult to form mesoporous TiO 2 because it is hard to precisely control the strong tendency of precipitation . It has been reported that using templates to prepare TiO 2 can gain mesoporous structure . In particular, the organic matrixes with fibrous or tubular structures, such as organogelators, DNA, cellulose, and tobacco mosaic virus, are most often used as templates to synthesize fibrous or tubular TiO 2 …”

Section: Introductionmentioning

confidence: 99%

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Using Collagen Fiber as a Template to Synthesize TiO₂ and Fe_x/TiO₂ Nanofibers and Their Catalytic Behaviors on the Visible Light-Assisted Degradation of Orange II

Cai

Liao

Shi

2010

Ind. Eng. Chem. Res.

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TiO 2 and Fe x /TiO 2 nanofibers were prepared using collagen fiber as the template and Ti(SO 4 ) 2 as the titanium source, on which titanium (Ti 4+ ) or titanium (Ti 4+ )/iron (Fe 3+ ) were loaded, respectively, and then heattreated. The structure and physical properties of these nanofibers were characterized by means of scanning electron microscopy, field emission scanning electron microscopy, X-ray diffraction, specific surface analyzer, and UV-vis absorption spectra. It was found that iron ions may substitute for some lattice titanium atoms and form a Ti-O-Fe structure. The TiO 2 and Fe x /TiO 2 nanofibers were all anatase phase when sintered at 600 °C for 4 h. The N 2 adsorption-desorption isotherms of TiO 2 and Fe x /TiO 2 nanofibers were the typical type IV, which associated with the characteristics of mesoporous materials. Compared with Degussa P25, the absorbance wavelength of obtained TiO 2 and Fe x /TiO 2 nanofibers was red shift and the band gap energy was decreased. The obtained TiO 2 and Fe x /TiO 2 nanofibers exhibited excellent visible light catalytic activity for degradation of orange II.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Using Collagen Fiber as a Template to Synthesize TiO₂ and Fe_x/TiO₂ Nanofibers and Their Catalytic Behaviors on the Visible Light-Assisted Degradation of Orange II

Cai

Liao

Shi

2010

Ind. Eng. Chem. Res.

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“…Unfortunately, the “acid−base” route is not suitable for the synthesis of mesoporous organophosphonates because the organic groups in organophosphonic acid partly decomposed during the calcination step . As far as we know, only a few porous zirconium organophosphonates were synthesized through the surfactant-assisted method. ,, Therefore, the synthesis of mesoporous zirconium organophosphonates still remains a challenge.…”

Section: Introductionmentioning

confidence: 99%

Pore-Size Tunable Mesoporous Zirconium Organophosphonates with Chiral l-Proline for Enzyme Adsorption

Shi

Liu

et al. 2007

Inorg. Chem.

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Mesoporous zirconium organophosphonates with a tunable mesopore (pore diameter: from 4.8 to 16.3 nm) were synthesized through co-condensation of ZrCl4 and 1-phosphomethylproline (H3PMP) with the aid of organic additives in the presence of an anionic surfactant (sodium dodecyl sulfate) under weak acidic conditions. The organic additives, tetrahydrofuran, can effectively strengthen the assembly of ZrCl4 and H3PMP around the surfactant micelles through decreasing the hydrolysis and condensation rate of ZrCl4. The results of the N2 sorption isotherm and SEM image show that zirconium phosphate with a bimodal structure is formed by calcination of mesoporous zirconium organophosphonate. Mesoporous zirconium organophosphonates can effectively adsorb lysozyme (Lz) and papain, and the adsorption equilibrium for Lz can be reached within 30 min. The adsorption capacity for Lz and papain can reach as high as 438 and 297 mg/g, respectively. Furthermore, Lz adsorbed on mesoporous zirconium organophosphonates can retain its structural conformation as in its free state, and no leaching of Lz from the solid was observed when shaking the Lz-loaded solid in a buffer solution. Also, the existence of L-proline in the mesopore could help the adsorption of papain at a pH value lower than the pI of papain.

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“…7 Although many metal phosphonates with openframework structures have been obtained via template-assisted technique, there are only a few exceptions that the organic templates could be removed with the framework structure maintained. 8 In the third approach, multidentate building blocks are employed and thus modular structures with controlled pore size distribution are expected. 9 On the basis of N,N′-piperazinebismethylenephosphonate ligand, for instance, Serre et al prepared the corresponding aluminum and titanium compounds with Langmuir surface areas close to 500 m 2 /g and pore volumes close to 0.19 cm 3 /g.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous inorganic porous materials have been synthesized by this approach, and the incorporated organic templates can be removed easily by heat treatment or other methods . Although many metal phosphonates with open-framework structures have been obtained via template-assisted technique, there are only a few exceptions that the organic templates could be removed with the framework structure maintained …”

Section: Introductionmentioning

confidence: 99%

Zinc 4-Carboxyphenylphosphonates with Pillared Layered Framework Structures Containing Large 12-Membered Rings Built Up from Tetranuclear Zn₄ Clusters and CPO₃ Linkages

Cao

Liu

et al. 2008

Crystal Growth & Design

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Twoisostructuralzincphosphonates[Zn(H 2 O) 6 ][Zn 8 (OOCC 6 H 4 PO 3 ) 6 (4,4′-bipy)](1)and(dabcoH) 2 [Zn 8 (OOCC 6 H 4 PO 3 ) 6 ] • 6H 2 O (2) (dabco ) 1,4-diazabicyclo[2.2.2]octane) have been obtained by hydrothermal reactions of zinc sulfate and 4-carboxyphenylphosphonic acid in the presence of additional organic ligands 4,4′-bipyridine and 1,4-diazabicyclo[2.2.2]octane, respectively. Both show pillared layered open framework structures. The inorganic layers are of particular interest in which the highly symmetric tetranuclear clusters, composed of corner-sharing {ZnO 4 } and {ZnO 3 N} tetrahedra, are linked by {CPO 3 } tetrahedra through cornersharing, forming an inorganic layer containing large 12-membered windows. The [Zn(H 2 O) 6 ] 2+ cations (for 1) or lattice water (for 2) reside in the cavities generated by the 12-membered windows and the organic pillars.

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Template-assisted syntheses of two novel porous zirconium methylphosphonates

Cited by 11 publications

References 41 publications

Using Collagen Fiber as a Template to Synthesize TiO₂ and Fe_x/TiO₂ Nanofibers and Their Catalytic Behaviors on the Visible Light-Assisted Degradation of Orange II

Using Collagen Fiber as a Template to Synthesize TiO₂ and Fe_x/TiO₂ Nanofibers and Their Catalytic Behaviors on the Visible Light-Assisted Degradation of Orange II

Pore-Size Tunable Mesoporous Zirconium Organophosphonates with Chiral l-Proline for Enzyme Adsorption

Zinc 4-Carboxyphenylphosphonates with Pillared Layered Framework Structures Containing Large 12-Membered Rings Built Up from Tetranuclear Zn₄ Clusters and CPO₃ Linkages

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Template-assisted syntheses of two novel porous zirconium methylphosphonates

Cited by 11 publications

References 41 publications

Using Collagen Fiber as a Template to Synthesize TiO2 and Fex/TiO2 Nanofibers and Their Catalytic Behaviors on the Visible Light-Assisted Degradation of Orange II

Using Collagen Fiber as a Template to Synthesize TiO2 and Fex/TiO2 Nanofibers and Their Catalytic Behaviors on the Visible Light-Assisted Degradation of Orange II

Pore-Size Tunable Mesoporous Zirconium Organophosphonates with Chiral l-Proline for Enzyme Adsorption

Zinc 4-Carboxyphenylphosphonates with Pillared Layered Framework Structures Containing Large 12-Membered Rings Built Up from Tetranuclear Zn4 Clusters and CPO3 Linkages

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Using Collagen Fiber as a Template to Synthesize TiO₂ and Fe_x/TiO₂ Nanofibers and Their Catalytic Behaviors on the Visible Light-Assisted Degradation of Orange II

Using Collagen Fiber as a Template to Synthesize TiO₂ and Fe_x/TiO₂ Nanofibers and Their Catalytic Behaviors on the Visible Light-Assisted Degradation of Orange II

Zinc 4-Carboxyphenylphosphonates with Pillared Layered Framework Structures Containing Large 12-Membered Rings Built Up from Tetranuclear Zn₄ Clusters and CPO₃ Linkages