Nature and catalytic performance of PtSAPO-5 molecular sieve catalyst synthesized by one step

1998 ◽  
Vol 15 (5) ◽  
pp. 505-509
Author(s):  
Tian-Cun Xiao ◽  
Hai-Tao Wang ◽  
Yu-Li Lu ◽  
Li-Dun An ◽  
Hong-Li Wang
Keyword(s):  
Molecular Sieve ◽  
Catalytic Performance ◽  
One Step

MeAPO4 Berlinite as an Effective Catalyst for Mild Oxidation of Cyclohexane

2013 ◽  
Vol 709 ◽  
pp. 102-105 ◽  
Author(s):  
Da Lei Sun ◽  
Zi Sheng Chao
Keyword(s):  
Molecular Oxygen ◽  
Atmospheric Pressure ◽  
Molecular Sieve ◽  
Catalytic Performance ◽  
Synergic Effect ◽  
Mild Oxidation ◽  
Effective Catalyst ◽  
Ft Ir

Cobalt and/or manganese incorporated berlinites (CoMnAPO4) and aluminophosphate molecule sieve (CoMnAPO-5) were hydrothermally synthesized, characterized by XRD, FT-IR, XPS and SEM, and employed as catalysts in the oxidation of cyclohexane with molecular oxygen at 348 K under atmospheric pressure. It was found that the berlinite-based catalysts were more selective for the production of KA oil, stable during the reaction, but slightly less active for the conversion of cyclohexane, when compared to their molecular sieve counterparts. The CoMnAPO4exhibited a better catalytic performance, due to a synergic effect, than the CoAPO4or MnAPO4.

Preparation of Fe/activated carbon directly from rice husk pyrolytic carbon and its application in catalytic hydroxylation of phenol

RSC Advances ◽  
2015 ◽  
Vol 5 (7) ◽  
pp. 4984-4992 ◽  
Author(s):  
Xian Zhang ◽  
Yaxin Li ◽  
Guiying Li ◽  
Changwei Hu
Keyword(s):  
Activated Carbon ◽  
Rice Husk ◽  
Pyrolytic Carbon ◽  
Catalytic Performance ◽  
Phenol Hydroxylation ◽  
Hydroxylation Of Phenol ◽  
One Step

The loading of iron and the formation of activated carbon were combined to one step and the thus-obtained Fe/activated carbon showed good catalytic performance for phenol hydroxylation.

Hierarchical flower-like Bi2WO6 hollow microspheres: facile synthesis and excellent catalytic performance

RSC Advances ◽  
2015 ◽  
Vol 5 (29) ◽  
pp. 23080-23085 ◽  
Author(s):  
Peigen Zhang ◽  
Jian Zhang ◽  
Anjian Xie ◽  
Shikuo Li ◽  
Jiming Song ◽  
...  
Keyword(s):  
Hollow Spheres ◽  
Catalytic Performance ◽  
Hollow Microspheres ◽  
Solvothermal Process ◽  
Facile Synthesis ◽  
Step Method ◽  
Bismuth Tungstate ◽  
One Step ◽  
Excellent Catalytic Performance

A one step method has been developed for the fabrication of hierarchical flower-like bismuth tungstate (Bi2WO6) hollow spheres via a solvothermal process.

Facile One-Step Dialysis Strategy for Preparation of Porous Silica Nanoparticles with Rough Surface

NANO ◽  
2020 ◽  
Vol 15 (03) ◽  
pp. 2050038
Author(s):  
Zhe Chen ◽  
Jiaqiong Xu ◽  
Xuechen Xiang ◽  
Dongfang Ren ◽  
Ning Chen ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Rough Surface ◽  
Mesoporous Silica Nanoparticles ◽  
Porous Silica ◽  
Catalytic Performance ◽  
Ammonia Solution ◽  
Type Iv ◽  
Organic Surfactant ◽  
One Step ◽  
Adsorption Desorption

In this study, porous silica nanoparticles were fabricated in the absence of organic surfactant template at room temperature by a facile one-step dialysis method. By using a dialysis system comprising an ammonia solution as the dialysate, a series of porous silica nanoparticles with a rough surface (e.g., raspberry-like) were obtained by the initiation of a homogeneous ternary tetraethylsilicate-water-ethanol system with different ammonia solution concentrations. The specific surface area and pore volume of porous nanoparticles were regulated by changing the dialysate concentrations. N2 adsorption–desorption measurements revealed that the porous silica nanoparticles owned both mesopores and micropores and exhibited a type IV isotherm, hence, these nanoparticles can be used as mesoporous silica nanoparticles (MSNs). The Au@MSN nanocomposite can be used as a catalyst for the typical reduction of 4-nitrophenol to 4-aminophenol by NaBH4 and exhibited excellent catalytic performance.

Effect of Ionothermal Synthesis on the Acidity and Catalytic Performance of a SAPO‐5 Molecular Sieve

2019 ◽  
Vol 4 (35) ◽  
pp. 10520-10524
Author(s):  
Jie Feng ◽  
Lulu Guo ◽  
Zheng Wang ◽  
Baishun Wang ◽  
Jianfeng Wang ◽  
...  
Keyword(s):  
Molecular Sieve ◽  
Catalytic Performance ◽  
Ionothermal Synthesis

scholarly journals A facile method to fabricate AC/CuO for efficient removal of organic pollutants by adsorption and persulfate-based advanced oxidation processes

2020 ◽  
Author(s):  
Youlin Li ◽  
Yu Hu ◽  
Wenqiao You ◽  
Guangming Zhou ◽  
Guilong Peng
Keyword(s):  
Catalytic Performance ◽  
Catalytic Degradation ◽  
Maximum Adsorption Capacity ◽  
Efficient Removal ◽  
X Ray ◽  
One Step ◽  
Ft Ir ◽  
Degradation Reaction ◽  
The Relationship ◽  
Insight Into

Abstract Activated carbon/CuO (AC/CuO) composites was prepared through a facile one-step hydrothermal method and used as a bifunctional material for adsorption and catalysis degradation of bisphenol A (BPA). The composite was characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and X-ray powder diffraction (XRD). The obtained AC/CuO exhibited excellent adsorption and catalytic performance. The maximum adsorption capacity of BPA on the AC/CuO was 319.03 mg/g according to the Langmuir fitting. At an initial BPA concentration of 20 mg/L, the BPA degradation efficiencies were maintained above 96% for 15 min by using 20 mg/L AC/CuO and 2 mM peroxymonosulfate (PMS). Moreover, the relationship between adsorption and catalytic degradation was also investigated. The results indicated that the pre-adsorption disfavored the degradation reaction. This work not only provides a novel preparation method for AC/CuO catalyst, but also gives a deeper insight into the mechanisms between adsorption and catalytic degradation.

Synthesis and catalytic performance of ZSM-5/MCM-41 composite molecular sieve from palygorskite

2017 ◽  
Vol 91 (10) ◽  
pp. 1883-1889
Author(s):  
Jinlong Jiang ◽  
Mei Wu ◽  
Yong Yang ◽  
Chuansong Duanmu ◽  
Jing Chen ◽  
...  
Keyword(s):  
Molecular Sieve ◽  
Catalytic Performance ◽  
Composite Molecular Sieve ◽  
Mcm 41

One-step melamine-assisted synthesis of graphene-supported AuPt@Au nanocrystals for enhanced catalytic reduction of p-nitrophenol

RSC Advances ◽  
2015 ◽  
Vol 5 (116) ◽  
pp. 96028-96033 ◽  
Author(s):  
Qi Liu ◽  
Yan-Ru Xu ◽  
Ai-Jun Wang ◽  
Jiu-Ju Feng
Keyword(s):  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Core Shell ◽  
Nitrophenol Reduction ◽  
One Step

Core–shell AuPt@Au NCs/rGO was facilely prepared by a one-step melamine-assisted method, which exhibited enhanced catalytic performance for p-nitrophenol reduction.

CoAPO-5-type molecular sieve membrane: synthesis, characterization and catalytic performance

2011 ◽  
Vol 1 (2) ◽  
pp. 255 ◽  
Author(s):  
Manickam Sasidharan ◽  
Yoshimichi Kiyozumi ◽  
Asim Bhaumik
Keyword(s):  
Molecular Sieve ◽  
Catalytic Performance ◽  
Membrane Synthesis
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