Improved Plasmonic Au-Ag/TiO2/rGO Photocatalyst through Entire Visible Range Absorption, Charge Separation and High Adsorption Ability.

2021 ◽  
Author(s):  
Hicham Attout ◽  
Abdallah Bouguettoucha ◽  
Derradj Chebli ◽  
Julian Crespo ◽  
Jean-Charles Dupin ◽  
...  

Small size AuAg colloidal nanoparticles (AuAg NPs) are prepared through the mild decomposition of the organometallic precursor [Au2Ag2(C6F5)4(OEt2)2]n in THF, using polyvinylpirrolidone (PVP) as stabilizing polymer. These nanoparticles are directly...

RSC Advances ◽  
2014 ◽  
Vol 4 (85) ◽  
pp. 45244-45250 ◽  
Author(s):  
Yun Meng ◽  
Liyuan Zhang ◽  
Liyuan Chai ◽  
Wanting Yu ◽  
Ting Wang ◽  
...  

PmPD nanobelts with high adsorption performance have been synthesized by using CTAP as oxidants.


2013 ◽  
Vol 475-476 ◽  
pp. 1311-1319
Author(s):  
Ping Hua Chen ◽  
Xue Zhen Zhou ◽  
Yong Xiu Li ◽  
Dong Ping Li ◽  
Jing Li ◽  
...  

In present study, uniformed nanozirconia is obtained via precipitation, ball milling and spray drying. The characteristics of methylene blue adsorption by nanozirconia are studied in details. The morphology of nanozirconia is examined by SEM. The influence of temperature is studied to obtain the optimal adsorption conditions. The equilibrium adsorption isotherms and the kinetic properties of the adsorption process are investigated to study the mechanism. The thermodynamic properties of methylene blue adsorption is investigated, and the thermodynamic parameters of Gθ, Hθ and Sθ are calculated. The results show nanozirconia has high adsorption ability of 43.99 mg/g to methylene blue, and the adsorption reaction is a spontaneous and physic-sorption process.


2014 ◽  
Vol 43 (22) ◽  
pp. 8331-8337 ◽  
Author(s):  
Miao Xiong ◽  
Lang Chen ◽  
Qing Yuan ◽  
Jie He ◽  
Sheng-Lian Luo ◽  
...  

Flower-like Bi2O2CO3 and g-C3N4–Bi2O2CO3 microspheres with a high adsorption ability were synthesized using a facile method, and their dye-induced photosensitized degradation activity under visible light irradiation was evaluated.


2013 ◽  
Vol 5 (4) ◽  
pp. 341-345 ◽  
Author(s):  
Bing Li ◽  
Yan-Long Feng ◽  
Jian-Zhong Guo ◽  
Li-Qun Bai ◽  
Jie Chen ◽  
...  

2006 ◽  
Vol 309-311 ◽  
pp. 561-564 ◽  
Author(s):  
H. Omi ◽  
Soichiro Itoh ◽  
Toshiyuki Ikoma ◽  
Y. Asou ◽  
S. Nishikawa ◽  
...  

Hydroxyapatite/hyaluronic acid (HAp/HyA) and hydroxyapatite/chondroitin sulfate (HAp/ChS) microparticles, which show the high adsorption ability of proteins, high biocompatibility and osteoconductivity, are potential scaffolds for a time-controlled BMP release. The present study evaluated the biocompatibility and osteoconductivity of the composites after injection into bone defect. Drilled bone holes were made at tibia and femur of Japanese white rabbits, and HAp/HyA or HAp/ChS was implanted into each bone hole using an injection syringe. After 2 and 4 weeks of implantation, rabbits were sacrificed and histological observations were conducted with HE, TRAP, and ALP staining. Histological observations revealed that HAp/ChS has superior biocompatibility compared with HAp/HyA, and 20% HAp/ChS promotes bone formation as well as osteoblast activities compared with lower ratios of HAp/ChS.


2021 ◽  
Vol 9 ◽  
Author(s):  
Xiaojing Zhou ◽  
Lili Liu ◽  
Hang Kou ◽  
Shimei Zheng ◽  
Mingjun Song ◽  
...  

A 3D supermolecular structure [Co3(L)2 (2,2′-bipy)2](DMF)3(H2O)3 1) (H3L = 4,4′,4″-nitrilotribenzoic acid) has been constructed based on H3L, and 2,2′-bipy ligands under solvothermal conditions. Compound 1 can be described as a (3, 6)-connected kgd topology with a Schläfli symbol (43)2(46.66.83) formed by [Co3(CO2)6] secondary building units. The adsorption properties of the activated sample 1a has been studied; the result shows that 1a has a high adsorption ability: the CO2 uptakes were 74 cm3·g−1 at 273 K, 50 cm3·g−1 at 298 K, the isosteric heat of adsorption (Qst) is 25.5 kJ mol−1 at zero loading, and the N2 adsorption at 77 K, 1 bar is 307 cm3 g−1. Magnetic measurements showed the existence of an antiferromagnetic exchange interaction in compound 1, besides compound 1 exhibits effective luminescent performance for Fe3+/Cr3+ and TNP.


Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4212 ◽  
Author(s):  
Sergey Reshetnikov ◽  
Irina Kurzina ◽  
Alesia Livanova ◽  
Eugene Meshcheryakov ◽  
Lyubov Isupova

The effect of alkali metal (Li, Na, K) incorporation on the morphology and water vapor uptake properties of mesoporous Al2O3 has been studied. The modification of the raw material, pseudoboehmite, represented a mixture of low-temperature phases (γ + η + χ)-Al2O3, and has been done at low-temperature that does not change the phase ratio. A decrease in specific surface values and an average pores size increase were observed as a result of the introduction of metal cations by impregnation and subsequent thermal treatment. The influence of the content of the modifying metal on the adsorption ability of the obtained samples in relation to water vapours has been studied. It has been established that alkaline modification Al2O3 with the lithium cations did not result in adsorption ability improvement, whereas samples that were modified with sodium or potassium in the amount of 1.2 weight % and 2.6 weight %, respectively, possess a higher equilibrium capacity (by ~40%), as compared to that of the initial sample (Al2O3), and a sufficiently high adsorption rate.


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