scholarly journals Synthesis of Novel ZnO Having Cauliflower Morphology for Photocatalytic Degradation Study

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Dipak Nipane ◽  
S. R. Thakare ◽  
N. T. Khati
Keyword(s):  
Photocatalytic Degradation ◽  
Material Properties ◽  
Low Cost ◽  
Environmental Applications ◽  
Zno Nanowire ◽  
Excellent Performance ◽  
Degradation Study ◽  
Unique Material ◽  
Photocatalytic Applications

ZnO nanowire morphology has been widely studied due to its unique material properties and excellent performance in electronics, optics, and photonic. Recently, photocatalytic applications of ZnO nanowire are creating an increasing interest in the environmental applications. This paper presents a low-cost and ecofriendly synthesis of ZnO with cauliflower morphology and its effectiveness in photocatalysis.

scholarly journals Synthesis, Characterization, and Applications of ZnO Nanowires

2012 ◽  
Vol 2012 ◽  
pp. 1-22 ◽  
Author(s):  
Yangyang Zhang ◽  
Manoj K. Ram ◽  
Elias K. Stefanakos ◽  
D. Yogi Goswami
Keyword(s):  
Environmental Protection ◽  
Material Properties ◽  
Zno Nanowires ◽  
Synthesis Methods ◽  
Special Focus ◽  
Wide Range ◽  
Unique Material ◽  
Photocatalytic Applications

ZnO nanowires (or nanorods) have been widely studied due to their unique material properties and remarkable performance in electronics, optics, and photonics. Recently, photocatalytic applications of ZnO nanowires are of increased interest in environmental protection applications. This paper presents a review of the current research of ZnO nanowires (or nanorods) with special focus on photocatalysis. We have reviewed the semiconducting photocatalysts and discussed a variety of synthesis methods of ZnO nanowires and their corresponding effectiveness in photocatalysis. We have also presented the characterization of ZnO nanowires from the literature and from our own measurements. Finally, a wide range of uses of ZnO nanowires in various applications is highlighted in this paper.

Ti3C2-MXene/Bismuth Ferrite Nanohybrids for Efficient Degradation of Organic Dye and Colorless Pollutant

2019 ◽  
Author(s):  
Ayesha Tariq ◽  
M. Abdullah Iqbal ◽  
S. Irfan Ali ◽  
Muhammad Z. Iqbal ◽  
Deji Akinwande ◽  
...  
Keyword(s):  
Surface Area ◽  
Low Cost ◽  
Bismuth Ferrite ◽  
Organic Dye ◽  
Two Dimensional ◽  
Electron Hole ◽  
Photocatalytic Application ◽  
Electron Hole Pair ◽  
Pair Generation ◽  
Photocatalytic Applications

<p>Nanohybrids, made up of Bismuth ferrites/Carbon allotropes, are extensively used in photocatalytic applications nowadays. Our work proposes a nanohybrid system composed of Bismuth ferrite nanoparticles with two-dimensional (2D) MXene sheets namely, the BiFeO<sub>3</sub> (BFO)/Ti<sub>3</sub>C<sub>2</sub> (MXene) nanohybrid for enhanced photocatalytic activity. We have fabricated the BFO/MXene nanohybrid using simple and low cost double solvent solvothermal method. The SEM and TEM images show that the BFO nanoparticles were attached onto the MXene surface and in the inter-layers of two-dimensional (2D) MXene sheets. The photocatalytic application is tested for the visible light irradiation which showed the highest efficiency among all pure-BFO based photocatalysts, i.e. 100% degradation in 42 min for organic dye (Congo Red) and colorless aqueous pollutant (acetophenone) in 150 min, respectively. The present BFO-based hybrid system exhibited the large surface area of 147 m<sup>2</sup>g<sup>-1</sup>measured via Brunauer-Emmett-Teller (BET) sorption-desorption technique, and is found to be largest among BFO and its derivatives. Also, the photoluminescence (PL) spectra indicate large electron-hole pair generation. Fast and efficient degradation of organic molecules is supported by both factors; larger surface area and lower electron-hole recombination rate. The BFO/MXene nanohybrid presented here is a highly efficient photocatalyst compared to other nanostructures based on pure BiFeO<sub>3</sub> which makes it a promising candidate for many future applications.</p>

Recent progress on strategies for the preparation of 2D/2D MXene/g-C3N4 nanocomposites for photocatalytic energy and environmental applications

2021 ◽  
Author(s):  
Lijarani Biswal ◽  
Susanginee Nayak ◽  
Kulamani Parida
Keyword(s):  
Recent Progress ◽  
Morphological Features ◽  
Environmental Applications ◽  
Synthetic Routes ◽  
Photocatalytic Applications

This review summarizes the possible synthetic routes, optical and morphological features to explore the 2D/2D interface and mechanism path in 2D/2D MXene/g-C3N4 nanocomposites for photocatalytic applications.

scholarly journals Low-Cost, Large-Area, Facile, and Rapid Fabrication of Aligned ZnO Nanowire Device Arrays

2016 ◽  
Vol 8 (21) ◽  
pp. 13466-13471 ◽  
Author(s):  
Gerard Cadafalch Gazquez ◽  
Sidong Lei ◽  
Antony George ◽  
Hemtej Gullapalli ◽  
Bernard A. Boukamp ◽  
...  
Keyword(s):  
Low Cost ◽  
Zno Nanowire ◽  
Large Area ◽  
Rapid Fabrication ◽  
Nanowire Device

scholarly journals Photocatalytic Degradation Study of Rhodamine-B by Green Synthesized Nano TiO2

2017 ◽  
Vol 29 (1) ◽  
pp. 221-225 ◽  
Author(s):  
S. Hiremath ◽  
C. Vidya ◽  
M.A.L. Antonyraj ◽  
M.N. Chandraprabha ◽  
S. Seemashri ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Nano Tio2 ◽  
Degradation Study

Photocatalytic Degradation of Synthetic Sulfur Pollutants in Petroleum Fractions under Different pH and Photocatalyst

2021 ◽  
Vol 02 (01) ◽  
Author(s):  
Mohamad Alif Hakimi Hamdan ◽  
◽  
Nur Hanis Hayati Hairom ◽  
Nurhafisza Zaiton ◽  
Zawati Harun ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Zno Nanoparticles ◽  
Low Cost ◽  
Industrial Effluents ◽  
Degradation Process ◽  
Vital Role ◽  
Petroleum Fraction ◽  
Precipitation Method ◽  
Synthesis Process ◽  
Petroleum Fractions

Thiophene is one of the sulfur compounds in the petroleum fraction that can be harmful to living things and lead to a critical effect on the ecosystem. Photocatalytic degradation is one of the promising methods in treating wastewater as it can mineralization of pollutants into carbon dioxide and water. Other than that, this method is non-toxic and relatively low cost. The production of hydroxyl radicals playing a vital role in the degradation of organic pollutants. It has been claimed that the usage of zinc oxide (ZnO) nanoparticles could give an excellent degradation process as this photocatalyst have high photosensitivity, low cost and chemically stable. However, the preparation method of ZnO nanoparticles will affect the agglomeration, particle size, shape and morphology of particles and lead to influence the photocatalytic activity in degrading thiophene. Therefore, this study focused on the effectiveness of ZnO nanoparticles in the presence of fibrous nanosilica (KCC-1) and polyethylene glycol (PEG) as the capping agent to degrade synthetic thiophene. ZnO/KCC-1 had been synthesized via the precipitation method and characterized by using Fourier Transform Infrared (FTIR). The chemical bond and nature of the photocatalyst from the FTIR results proved that the synthesis process to produce the ZnO/KCC-1 was succeed. The large surface area of KCC-1 increases the effectiveness of ZnO which is supported by the experimental data. Accordingly, the optimum condition for photocatalytic degradation of thiophene is under pH 7 by using ZnO/KCC-1 as photocatalyst. Hence, it is believed that this research could be implemented to remove the thiophene in petroleum fraction from the actual industrial effluents and this can preserve nature in the future.

scholarly journals Development of oil-in-water microemulsion encapsulating Vitamin E for thermal and hydrolysis degradation study

2020 ◽  
Vol 16 (3) ◽  
pp. 277-280
Author(s):  
Khairun Nisa Abdul Rahman ◽  
Vicit Rizal Eh Suk ◽  
Khalisanni Khalid ◽  
Nurhazirah Mohd Ihsan ◽  
Zainurin Md Dom ◽  
...  
Keyword(s):  
Particle Size ◽  
Vitamin E ◽  
Encapsulation Efficiency ◽  
Low Cost ◽  
Bioactive Compound ◽  
Small Particle Size ◽  
Degradation Study ◽  
Oil In Water ◽  
The Mean ◽  
Vitamin E Homologs

Vitamin E is widely used for medicinal and cosmeceuticals purposes. However, it is easy to degrade by the environment. In this study, the degradation of Gold Tri.E™ was studied and determined. Gold Tri.E™ is a mixture of Vitamin E homologs (tocotrienol and tocopherol) extracted from palm oil (Elais Guineensis). A nanocarrier system has been optimized to encapsulate Gold Tri.E™ from degrading and increasing its stability as a bioactive compound. An oil-in-water (o/w) microemulsion was formulated and optimized as the best carrier to encapsulate Gold Tri.E™ with the mean particle size of 32.60±3.60 nm and 99.99±0.01% encapsulation efficiency (EE). Degradation of the Gold Tri.E™ in o/w microemulsion was significantly reduced as compared to the bare Gold Tri.ETM. This suggested that the system could protect Gold Tri.E™ from thermal and hydrolysis degradation. Thus, the ease of preparation, low-cost production, and small particle size obtained when Gold Tri.E™ encapsulated in this system give promising drug delivery system to encapsulate, protect, and increase the shelf life of Gold Tri.E™.

scholarly journals Photocatalytic Degradation of Organic, Inorganic and Microbial Pollutants Present in Water by Novel Materials: A Critical Review and Present Update

2021 ◽  
Vol 33 (10) ◽  
pp. 2251-2259
Author(s):  
Elizabeth Kuruvilla ◽  
C. Freeda Christy ◽  
A. Samson Nesaraj
Keyword(s):  
Water Pollution ◽  
Photocatalytic Degradation ◽  
Low Cost ◽  
Good Method ◽  
Capacitive Deionization ◽  
Aquatic Life ◽  
Environmental Friendliness ◽  
Living Things ◽  
The World ◽  
The One

Presently water pollution is the one of the major threats faced by living things all over the world. The main cause of water pollution is its effect on the life of aquatic animals. Organic, inorganic, microbial and other pollutants often mix with water bodies mainly due to human activities. Because of the presence of pollutants in water, the amount of dissolved oxygen level can be decreased which in turn affect the survival of aquatic life. The pollutant water may enter the agriculture fields and damage the plants extensively. The methods, such as, coagulation, adsorption, foam floating, electrodialysis, capacitive deionization, etc. are presently employed to treat the waste water. Among these methods, heterogeneous photocatalytic degradation is considered to be a good method because of its low cost and environmental friendliness. In this review, the decontamination of different kinds of organic, inorganic and microbial contaminants in water with different photocatalysts process is presented.

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