Multifunctional magnetic oleic acid-coated MnFe2O4/polystyrene Janus particles for water treatment

2016 ◽  
Vol 4 (30) ◽  
pp. 11768-11774 ◽  
Author(s):  
Deng Pan ◽  
Fangzhi Mou ◽  
Xiaofeng Li ◽  
Zhuoyi Deng ◽  
Jing Sun ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Water Treatment ◽  
Organic Dyes ◽  
Janus Particles ◽  
Catalytic Activities

Multifunctional MnFe2O4@OA/PS Janus particles (JPs) for water treatment are demonstrated in this work. They can not only encapsulate and separate oil from water, but also degrade organic dyes in water due to their amphiphilic properties, magnetic responses and high catalytic activities.

Rapid photocatalytic degradation of cationic organic dyes using Li-doped Ni/NiO nanocomposites and their electrochemical performance

2021 ◽  
Author(s):  
R. Ranjitha ◽  
K. N. Meghana ◽  
V. G. Dileep Kumar ◽  
Aarti S. Bhatt ◽  
B. K. Jayanna ◽  
...  
Keyword(s):  
Energy Storage ◽  
Water Treatment ◽  
Electrochemical Performance ◽  
Photocatalytic Degradation ◽  
Organic Dyes

This work reports novel bi-functional Li-doped Ni/NiO nanocomposites as potential candidates for energy storage and water treatment applications.

Sonocatalytic degradation of organic dyes and comparison of catalytic activities of CeO2/TiO2, SnO2/TiO2 and ZrO2/TiO2 composites under ultrasonic irradiation

2010 ◽  
Vol 17 (4) ◽  
pp. 642-648 ◽  
Author(s):  
Jun Wang ◽  
Yanhui Lv ◽  
Liqun Zhang ◽  
Bin Liu ◽  
Renzheng Jiang ◽  
...  
Keyword(s):  
Ultrasonic Irradiation ◽  
Organic Dyes ◽  
Catalytic Activities

scholarly journals MANUFACTURING OF ACTIVATED CARBON USING DISPOSABLE COCONUT SHELLS FOR CATALYTIC ACTIVITIES AND WATER TREATMENT UTILIZATIONS

2020 ◽  
Vol 4 ◽  
pp. 6-9
Author(s):  
Suresh Aluvihara ◽  
C.S. Kalpage ◽  
P.W.S.K. Bandaranayake
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Cost Effective ◽  
Optical Microscope ◽  
High Porosity ◽  
Catalytic Activities ◽  
Different Temperatures ◽  
Microscopic Studies ◽  
Coconut Shells ◽  
Black Color

Activated carbon is a black color solid compound which is fabricated using naturally occurring materials such as woods and species of coal that composed of the majority in carbon. The activated carbon is highly remarkable compound in the catalytic activities in most of chemical industries and water treatment activities because of the significant performances of such activated carbon due to the sufficiency of the surface property which is called as the adsorption with the couple of high porosity. The manufacturing of activated carbon from disposable coconut shells and the investigations of the physic-chemical characteristics of such activated carbon were the expectances of the existing research. Domestically collected coconut shells were burnt in the range of different temperatures 390°C–300°C after removing unnecessary constituents. The chemical composition of the powdered activated carbon was inspected using an X-ray fluorescence (XRF) spectrophotometer and the surfaces of prepared activated carbon were examined using an optical microscope. As the outcomes of the above experiments, it seems that the most adequate burning temperature for the manufacturing of that batch of coconut shells was in the range of 330°C–350°C, 68.85% of ferrous and 31.15% of potassium as the composed metallic element apart from the non metallic carbon and the pure black color non- composite surfaces were observed under the microscopic studies. It is encouraged to develop this production using cost effective materials such as the shells of fesults which are belonging to the palm cast while utilizing the productions through the various applications in chemical industries

scholarly journals Porous metalloporphyrinic nanospheres constructed from metal 5,10,15,20-tetraksi(4′-ethynylphenyl)porphyrin for efficient catalytic degradation of organic dyes

RSC Advances ◽  
2018 ◽  
Vol 8 (14) ◽  
pp. 7330-7339 ◽  
Author(s):  
Yongjin Li ◽  
Liming Wang ◽  
Yong Gao ◽  
Weijun Yang ◽  
Yingying Li ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Organic Dyes ◽  
Coupling Reaction ◽  
Catalytic Degradation ◽  
Sonogashira Coupling ◽  
Catalytic Activities ◽  
Sonogashira Coupling Reaction

A kind of novel conjugated metalloporphyrin polymers were synthesized by the Sonogashira coupling reaction. They were microporous nanospherical polymers and showed excellent catalytic activities and reusability in degradation of methylene blue.

scholarly journals Prospects of using photocatalysts for wastewater treatment at automotive repair plants

2021 ◽  
Vol 895 (1) ◽  
pp. 012043
Author(s):  
A V Zaitsev ◽  
K S Makarevich ◽  
O I Kaminsky
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Ethylene Glycol ◽  
Organic Dyes ◽  
Treatment Method ◽  
Total Efficiency ◽  
Overall Efficiency ◽  
Automotive Repair ◽  
Functional Components

Abstract The paper shows the possibility of application of photocatalytic water treatment method as applied to model effluents of car repair plants containing ethylene glycol. The influence of functional components of automobile coolants on total efficiency of photooxidation was considered. It has been revealed that the presence of organic dyes in automobile coolants with absorption areas coinciding with the absorption areas of photocatalysts reduces the overall efficiency of photooxidation processes.

Green synthesis of plant supported Cu Ag and Cu Ni bimetallic nanoparticles in the reduction of nitrophenols and organic dyes for water treatment

2018 ◽  
Vol 260 ◽  
pp. 78-91 ◽  
Author(s):  
Muhammad Ismail ◽  
M.I. Khan ◽  
Sher Bahadar Khan ◽  
Murad Ali Khan ◽  
Kalsoom Akhtar ◽  
...  
Keyword(s):  
Water Treatment ◽  
Green Synthesis ◽  
Bimetallic Nanoparticles ◽  
Organic Dyes

scholarly journals A tripeptide-based self-shrinking hydrogel for waste-water treatment: removal of toxic organic dyes and lead (Pb2+) ions

2017 ◽  
Vol 53 (43) ◽  
pp. 5910-5913 ◽  
Author(s):  
Shibaji Basak ◽  
Nibedita Nandi ◽  
Subir Paul ◽  
Ian W. Hamley ◽  
Arindam Banerjee
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Organic Dyes ◽  
Waste Water Treatment ◽  
Efficient Removal

A tripeptide-based supramolecular automatically self-shrinking superhydrogel has been discovered for the efficient removal of toxic organic dyes and Pb2+ ions from waste-water.

Bioenergy II: Acid Diphosphates as Catalysts for the Production of Methyl and Ethyl Esters from Vegetable Oils

2009 ◽  
Vol 7 (1) ◽  
Author(s):  
Letícia Ledo Marciniuk ◽  
Camila Martins Garcia ◽  
Roberto Bineli Muterle ◽  
Ulf Schuchardt
Keyword(s):  
Oleic Acid ◽  
Soybean Oil ◽  
Surface Area ◽  
Vegetable Oils ◽  
31P Nmr ◽  
Ethyl Esters ◽  
27Al Nmr ◽  
Catalytic Activities ◽  
Ft Ir ◽  
Optimized Conditions

Acidic lanthanum and aluminum diphosphates were prepared and characterized (surface area, XRD, FT-IR, 31P-NMR and 27Al-NMR). These materials were used as catalyst for the esterification of oleic acid and transesterification of soybean oil. Under optimized conditions the methyl and ethyl ester yields were above 95%. Although the catalysts are recyclable, they slowly lost their catalytic activities, due to leaching of the phosphate.

scholarly journals Nanocellulose-Based Materials for Water Treatment: Adsorption, Photocatalytic Degradation, Disinfection, Antifouling, and Nanofiltration

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3008
Author(s):  
Ahmed Salama ◽  
Ragab Abouzeid ◽  
Wei Sun Leong ◽  
Jaison Jeevanandam ◽  
Pieter Samyn ◽  
...  
Keyword(s):  
Water Treatment ◽  
Surface Chemistry ◽  
Photocatalytic Degradation ◽  
Organic Dyes ◽  
Synthesis Methods ◽  
Nano Materials ◽  
Produce Water ◽  
Treatment Processes ◽  
Effective Removal ◽  
Wastewater Pollutants

Nanocelluloses are promising bio-nano-materials for use as water treatment materials in environmental protection and remediation. Over the past decades, they have been integrated via novel nanoengineering approaches for water treatment processes. This review aims at giving an overview of nanocellulose requirements concerning emerging nanotechnologies of waster treatments and purification, i.e., adsorption, absorption, flocculation, photocatalytic degradation, disinfection, antifouling, ultrafiltration, nanofiltration, and reverse osmosis. Firstly, the nanocellulose synthesis methods (mechanical, physical, chemical, and biological), unique properties (sizes, geometries, and surface chemistry) were presented and their use for capturing and removal of wastewater pollutants was explained. Secondly, different chemical modification approaches surface functionalization (with functional groups, polymers, and nanoparticles) for enhancing the surface chemistry of the nanocellulose for enabling the effective removal of specific pollutants (suspended particles, microorganisms, hazardous metals ions, organic dyes, drugs, pesticides fertilizers, and oils) were highlighted. Thirdly, new fabrication approaches (solution casting, thermal treatment, electrospinning, 3D printing) that integrated nanocelluloses (spherical nanoparticles, nanowhiskers, nanofibers) to produce water treatment materials (individual composite nanoparticles, hydrogels, aerogels, sponges, membranes, and nanopapers) were covered. Finally, the major challenges and future perspectives concerning the applications of nanocellulose based materials in water treatment and purification were highlighted.

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