scholarly journals Coating-free TiO2@β-SiC alveolar foams as a ready-to-use composite photocatalyst with tunable adsorption properties for water treatment

RSC Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 3817-3825 ◽  
Author(s):  
Marisa Rico-Santacruz ◽  
Patricia García-Muñoz ◽  
Clément Marchal ◽  
Nelly Batail ◽  
Charlotte Pham ◽  
...  

Coating-free TiO2@β-SiC photocatalytic composite foams gathering within a ready-to-use shell/core alveolar medium the TiO2 photocatalyst and the β-SiC foam structure were prepared via a multi-step shape memory synthesis (SMS) replica method.

2005 ◽  
Vol 14 (8) ◽  
pp. 1353-1360 ◽  
Author(s):  
Nicolas Keller ◽  
Olivier Reiff ◽  
Valérie Keller ◽  
Marc J. Ledoux

Chemosphere ◽  
2019 ◽  
Vol 221 ◽  
pp. 750-757 ◽  
Author(s):  
Changhui Wang ◽  
Zheng Hao ◽  
Zhao Wei ◽  
Leilei Bai ◽  
Zongbao Yao ◽  
...  

2011 ◽  
Vol 306-307 ◽  
pp. 642-645
Author(s):  
Zhen Lv ◽  
Fu Guang Lu ◽  
Lu Lu Fan ◽  
Hua Min Qiu ◽  
Chuan Nan Luo

The synthesis chitosan modified by N,N-dimethylformamide(DMF) grafted β-CD (CTS), adsorption experiments of lanthanide ions, a new type water treatment agent, are discussed in this paper. First, the chitosan was modified by DMF, and then β-cyclodextrin (β-CD) was grafted onto chitosan skeleton by epoxy chloropropane. The effects of temperature, pH value, adsorption time on adsorption content were studied. The water treatment agent have a high lanthanide adsorption rate up to 98% compared to chitosan, b-CD and chitosan derivative bearing β-cyclodextrin.


Soft Matter ◽  
2014 ◽  
Vol 10 (40) ◽  
pp. 8066-8074 ◽  
Author(s):  
Hossein Birjandi Nejad ◽  
Richard M. Baker ◽  
Patrick T. Mather

2014 ◽  
Vol 292 ◽  
pp. 948-953 ◽  
Author(s):  
Zhijie Zhang ◽  
Wenzhong Wang ◽  
Dong Jiang ◽  
Jiayue Xu

Author(s):  
Kendal Ezell ◽  
Landon Nash ◽  
Sonya Gordon ◽  
Duncan Maitland

An estimated 6 million people in the United States have an unruptured cerebral aneurysm [1]. If left untreated, these aneurysms can rupture and to lead to severe brain function impairment or even death. Shape memory polymer (SMP) foams have been proposed for use to optimize endovascular embolization in place of current embolization devices [2,3]. SMPs are capable of actuating from a programmed secondary geometry to their expanded primary geometry in response to a stimulus, such as body temperature [4]. The expanded foam geometry provides an interface for embolization of the aneurysm to occur, however, treatment with these devices has limited visibility under fluoroscopy. Previous work by Hasan et al. increased radiopacity through the incorporation of tungsten (W) nanoparticles. These composite foams showed successful x-ray visibility, but aggregate disruption of the SMP matrix led to decreased mechanical properties [5]. This work addresses limitations of composite SMP foams, namely toughness, by chemically incorporating x-ray visible monomers, such as the triodobenzene containing monomer, 5-Amino-2,4,6-triiodoisophthalic acid (AT), into the material composition. These materials enable contrast agent loading without disrupting the polymer matrix. This polymer foam system was characterized to determine the clinical relevance of the improved radiopaque SMP foam for occlusion devices.


2001 ◽  
Vol 200 (2) ◽  
pp. 400-410 ◽  
Author(s):  
Cuong Pham-Huu ◽  
Nicolas Keller ◽  
Gaby Ehret ◽  
Marc J Ledoux

2011 ◽  
Vol 37 (8) ◽  
pp. 3281-3289 ◽  
Author(s):  
Rajnish Dhiman ◽  
Victor Petrunin ◽  
Kuldeep Rana ◽  
Per Morgen

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