نتایج جستجو برای: nanocomposite catalyst

تعداد نتایج: 57241  

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2015
Neerugatti KrishnaRao Eswar Praveen Chandrashekarapura Ramamurthy Giridhar Madras

This study demonstrates the synthesis of TiO2 nanobelts using solution combustion derived TiO2 with enhanced photocatalytic activity for dye degradation and bacterial inactivation. Hydrothermal treatment of combustion synthesized TiO2 resulted in unique partially etched TiO2 nanobelts and Ag3PO4 was decorated using the co-precipitation method. The catalyst particles were characterized using X-r...

Journal: :Nanoscale 2014
Tao Wang Jing Tang Xiaoli Fan Jianhua Zhou Hairong Xue Hu Guo Jianping He

Electrocatalysts for hydrogen oxidation and methanol oxidation are the heart of the proton exchange membrane fuel cell. In spite of tremendous efforts, developing low-cost anodic electrocatalysts with high catalytic activity and corrosion resistance is still a great challenge. Here, we report a nanocomposite consisting of oriented WO3 nanorods grown in ordered mesoporous carbon as a high-perfor...

2017
Jingqi Guan Chunmei Ding Ruotian Chen Baokun Huang Xianwen Zhang Fengtao Fan Fuxiang Zhang Can Li

Development of efficient, robust and earth-abundant water oxidation catalysts (WOCs) is extremely desirable for water splitting by electrolysis or photocatalysis. Herein, we report cobalt oxide nanoparticles anchored on the surface of sulfonated graphite (denoted as “CoOx@G-Ph-SN”) to exhibit unexpectedly efficient water oxidation activity with a turnover frequency (TOF) of 1.2 s ; two or three...

Journal: :Biosensors & bioelectronics 2010
Dan Wen Liu Deng Ming Zhou Shaojun Guo Li Shang Guobao Xu Shaojun Dong

Single-walled carbon nanohorns (SWNHs), a new type of carbon nanomaterials, possess excellent catalytic properties, high-purity, and low toxicities, which make them suitable for bioelectrochemical application. Here a biofuel cell anode has been developed by using SWNHs as the support for redox mediator and biocatalyst for the first time. Cyclic voltammetric results show SWNHs promotes the elect...

Journal: :E3S web of conferences 2023

In this study, the retention substance bentonite was used in preparation of a mesoporous silica nanocatalyst. The analysis sorbents from sorption isotherm study and results obtained were summarized. Also discussed are chemical composition Navbahor deposit, types sorbent isotherms by adsorption various gases on sorbents, descriptions phase samples synthesized textures, physic-chemical characteri...

Journal: :Coatings 2021

This work intended to enhance the unique and outstanding properties of lanthanum by synthesizing its nanocomposite. A lanthanum-based nanocomposite was prepared a simple cost-effective “co-precipitation” method. Lanthanum nitrate (La (NO3)3) zinc (Zn (NO3)2) were used as precursors. The lanthanum/zinc oxide nano composite formed then calcined at 450 °C for 4 h in order obtain fine powder with s...

Journal: :Journal of Taibah University for Science 2022

This manuscript describes the preparation and characterization of silica-nickel oxide (SiO2-NiO) xerogel nanocomposite its catalytic application in hydrogenation p-nitrophenol. Hydrochloric acid ammonium hydroxide were used as base catalyst, respectively during synthesis SiO2-NiO. The Fourier Transformation Infra-Red spectroscopic results supported formation silica skeleton structure with corre...

2015
Mehdi Mehdikhani-Nahrkhalaji Mohammad Hossein Fathi Vajihesadat Mortazavi Sayed Behrouz Mousavi Ali Akhavan Abbas Haghighat Batool Hashemi-Beni Sayed Mohammad Razavi Fatemeh Mashhadiabbas

BACKGROUND The aim of this study was to evaluate the interaction of bioactive and biodegradable poly (lactide-co-glycolide)/bioactive glass/hydroxyapatite (PBGHA) and poly (lactide-co-glycolide)/bioactive glass (PBG) nanocomposite coatings with bone. MATERIALS AND METHODS Sol-gel derived 58S bioactive glass nanoparticles, 50/50 wt% poly (lactic acid)/poly (glycolic acid) and hydroxyapatite na...

Journal: Journal of Nanoanalysis 2017
Amir Homayoun Keihan Hadis Javaheri Hamed Veisi,

In the present study, we carried out chemical synthesis and characterization of Fe3O4@PEG-Au as a magnetic nanocomposite in aqueous solution by chemical co-precipitation of Fe3+ and Fe2+ ions and encapsulated by poly (ethylene glycol) (PEG) in order to enhancing hydrophilicity, biocompatibility and immobilizing gold ions in the presence of NaBH4 as a reducing agent. Nanostructures were characte...

2012
S. Govindan E. A. K. Nivethaa R. Saravanan V. Narayanan A. Stephen

Chitosan–silver (CS–Ag) nanocomposite materials were synthesized by a simple chemical method. The synthesized CS–Ag nanocomposite contains 20 wt% silver. Silver nanoparticles were synthesized by chemical reduction method as well. The CS–Ag nanocomposite was characterized using Field emission scanning electronic microscope (FESEM), X-ray diffraction (XRD) and Fourier transform infrared spectrosc...

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