The Simultaneous Removal of Zinc and Cadmium from Multicomponent Aqueous Solutions by Their Sorption onto Selected Natural and Synthetic Zeolites

Natural and synthetic aluminosilicate minerals, in particular zeolites, are considered to be very useful in remediation processes, such as purification of waters polluted with heavy metals. That is due to their unique and outstanding physico-chemical properties, rendering them highly efficient, low-cost, and environmentally friendly sorbents of various environmental pollutants. The aim of this study was to examine the sorption capacity of four selected zeolites: A natural zeolite and three synthetic zeolites (3A, 10A, and 13X), towards zinc and cadmium present in multicomponent aqueous solutions, in relation to identified sorption mechanisms. It was stated that synthetic zeolites 3A and 10A were the most efficient in simultaneous removal of zinc and cadmium from aqueous solutions. Additionally, zeolite 10A was demonstrated to be the mineral best coping with prolonged pollution of water with those elements. The mechanism of sorption identified for tested minerals was physisorption.

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Permanent physico-chemical properties of extremely diluted aqueous solutions of homeopathic medicines

Homeopathy ◽

10.1016/j.homp.2004.04.004 ◽

2004 ◽

Vol 93 (3) ◽

pp. 144-150 ◽

Cited By ~ 33

Author(s):

V. Elia ◽

S. Baiano ◽

I. Duro ◽

E. Napoli ◽

M. Niccoli ◽

...

Keyword(s):

Aqueous Solutions ◽

Chemical Properties ◽

Physico Chemical ◽

Extremely Diluted Aqueous Solutions

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The Retrospects and Prospects of Pure Water Hydraulic Technology

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.201-202.979 ◽

2012 ◽

Vol 201-202 ◽

pp. 979-982 ◽

Cited By ~ 1

Author(s):

Feng Xu ◽

Li Xiang Zhang

Keyword(s):

Hydraulic System ◽

Low Cost ◽

Pure Water ◽

Chemical Properties ◽

Simple System ◽

Hydraulic Oil ◽

Physico Chemical ◽

Water Hydraulic ◽

Research Situation ◽

The Ideal

Pure water hydraulic technology attracts more and more attention of people due to no pollution, low cost, simple system, and many other advantages. This paper compares physico-chemical properties between pure water and hydraulic oil, concludes that pure water is the ideal medium for hydraulic system. Then it discusses the development of pure water hydraulic technology, introduces the present research situation and development of pure water hydraulic components from home to abroad in the future.

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New Activated Carbon from Mine Coal for Adsorption of Dye in Simulated Water or Multiple Heavy Metals in Real Wastewater

Materials ◽

10.3390/ma13112498 ◽

2020 ◽

Vol 13 (11) ◽

pp. 2498 ◽

Cited By ~ 2

Author(s):

Marwa Elkady ◽

Hassan Shokry ◽

Hesham Hamad

Keyword(s):

Activated Carbon ◽

Nitric Acid ◽

Metal Ions ◽

Low Cost ◽

Dye Adsorption ◽

Chemical Properties ◽

Batch Adsorption ◽

Maximum Adsorption Capacity ◽

Physico Chemical ◽

Multiple Heavy Metals

Nano-activated carbon (NAC) prepared from El-Maghara mine coal were modified with nitric acid solution. Their physico-chemical properties were investigated in terms of methylene blue (MB) adsorption, FTIR, and metal adsorption. Upon oxidation of the ACS with nitric acid, surface oxide groups were observed in the FTIR spectra by absorption peaks at 1750–1250 cm−1. The optimum processes parameters include HNO3/AC ratio (wt./wt.) of 20, oxidation time of 2 h, and the concentration of HNO3 of 10% reaching the maximum adsorption capacity of MB dye. Also, the prepared NAC was characterized by SEM, EDX, TEM, Raman Spectroscopy, and BET analyses. The batch adsorption of MB dye from solution was used for monitoring the behavior of the most proper produced NAC. Equilibrium isotherms of MB dye adsorption on NAC materials were acquired and the results discussed in relation to their surface chemistry. Langmuir model recorded the best interpretation of the dye adsorption data. Also, NAC was evaluated for simultaneous adsorption of six different metal ions (Fe2+, Ni2+, Mn2+, Pb2+, Cu2+, and Zn2+) that represented contaminates in petrochemical industrial wastewater. The results indicated that the extracted NAC from El-Maghara mine coal is considered as an efficient low-cost adsorbent material for remediation in both basic dyes and metal ions from the polluted solutions.

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Physico-Chemical Properties of Aqueous Solutions of Cn−1H2n−1OCH2COONa

Bulletin of the Chemical Society of Japan ◽

10.1246/bcsj.49.1257 ◽

1976 ◽

Vol 49 (5) ◽

pp. 1257-1259 ◽

Cited By ~ 8

Author(s):

Masakatsu Hato ◽

K\={o}z\={o} Shinoda ◽

T\={o}ru Miyagawa

Keyword(s):

Aqueous Solutions ◽

Chemical Properties ◽

Physico Chemical

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Synthesis and Physico-Chemical Properties of Homoleptic Copper(I) Complexes with Asymmetric Ligands as a DSSC Dye

Molecules ◽

10.3390/molecules26226835 ◽

2021 ◽

Vol 26 (22) ◽

pp. 6835

Author(s):

Tomohiko Inomata ◽

Mayuka Hatano ◽

Yuya Kawai ◽

Ayaka Matsunaga ◽

Takuma Kitagawa ◽

...

Keyword(s):

Dft Calculations ◽

Low Cost ◽

Dye Sensitized Solar Cells ◽

Chemical Properties ◽

Dye Sensitized ◽

Physico Chemical ◽

Td Dft ◽

Conversion Efficiencies ◽

Symmetric Ligands ◽

Sensitized Solar Cells

To develop low-cost and efficient dye-sensitized solar cells (DSSCs), we designed and prepared three homoleptic Cu(I) complexes with asymmetric ligands, M1, M2, and Y3, which have the advantages of heteroleptic-type complexes and compensate for their synthetic challenges. The three copper(I) complexes were characterized by elemental analysis, UV-vis absorption spectroscopy, and electrochemical measurements. Their absorption spectra and orbital energies were evaluated and are discussed in the context of TD-DFT calculations. The complexes have high VOC values (0.48, 0.60, and 0.66 V for M1, M2, and Y3, respectively) which are similar to previously reported copper(I) dyes with symmetric ligands, although their energy conversion efficiencies are relatively low (0.17, 0.64, and 2.66%, respectively).

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Zoning of a Newly-Planted Vineyard: Spatial Variability of Physico-Chemical Soil Properties

Soil Systems ◽

10.3390/soilsystems4040062 ◽

2020 ◽

Vol 4 (4) ◽

pp. 62 ◽

Cited By ~ 1

Author(s):

José Manuel Mirás-Avalos ◽

María Fandiño ◽

Benjamín J. Rey ◽

Jorge Dafonte ◽

Javier J. Cancela

Keyword(s):

Spatial Variability ◽

Soil Properties ◽

Low Cost ◽

Irrigation Management ◽

Chemical Properties ◽

Exchange Capacity ◽

Physico Chemical ◽

Spatio Temporal ◽

Different Origins ◽

Two Sectors

Soil properties show a high spatio-temporal variability, affecting productivity and crop quality within a given field. In new vineyard plantations, with changes in the initial topographic profile, this variability is exacerbated due to the incorporation of soil from different origins and qualities. The aim of the current study was to characterize the variability of soil properties in a newly established vineyard, and delineating zones for site-specific management of fertilization. For this purpose, the soil apparent electrical conductivity (ECa) in the first 150 cm was measured with an electromagnetic induction sensor. A soil sampling was performed following a regular grid (35 × 35 m, 149 samples), collecting samples down to 40 cm depth for determining soil chemical properties. Spatial variability was assessed through semivariogram calculation and ordinary kriging. The soil properties that better represent the variability in this newly established vineyard were pH, effective cation exchange capacity (ECEC), carbon content, clay and ECa. The ECa was homogeneous all over the vineyard, except for the area closer to the river where a greater human intervention had occurred, with contributions of external soil at a greater depth. Soil properties showed a great spatial variability. Interpolated maps allowed for detecting areas with a lack of nutrients in which a differential fertilization could be performed in search of a sustainable and balanced production. The information provided by the maps of pH, ECEC and carbon and potassium contents allow for performing a differential management of the vineyard in terms of fertilization. In addition, the results obtained suggest that the vineyard should be divided into two sectors for a differential irrigation management. The ECa was not significantly correlated to most of the soil properties determined in the current study; however, it allowed for a low-cost mapping of the vineyard soil and established large areas of management within the vineyard.

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Development of mango flavored Soy Dahi

Bangladesh Journal of Animal Science ◽

10.3329/bjas.v42i1.15779 ◽

2013 ◽

Vol 42 (1) ◽

pp. 44-48 ◽

Cited By ~ 2

Author(s):

TA Rakhi ◽

MN Islam ◽

SAM Hoque ◽

MM Rahman

Keyword(s):

Low Cost ◽

Chemical Properties ◽

Cow Milk ◽

High Price ◽

Soy Milk ◽

Chemical Parameters ◽

Physico Chemical ◽

Mango Juice ◽

Beany Flavour ◽

Physical And Chemical

The experiment was aimed to prepare mango flavored soy milk based dahi (whole cow milk : soy milk=1:1). To remove the beany flavour of soybean as well as to add the mango flavour, mango juice were added at the rate of 0, 5, 10 and 15%. Data on physical and chemical parameters were recorded and analyzed. It was observed that smell and taste, body and consistency, color and appearance as well as total score were significantly increased (p<0.01) when 5% mango juice added to soy milk based dahi. These properties could further be increased significantly (p<0.01) by increasing the level up to 10% but increasing the level of mango juice up to 15% were significantly decreased (p<0.01) the physical properties. After chemical analysis, a significant increasing (p<0.05) in acidity, total solids and carbohydrate content but a significantly decresing (p<0.05) in fat and ash content of dahi were observed due to the addition of mango juice. Compilation of physico-chemical properties it was observed that addition of 10% mango juice prepared a high quality low cost mango flavored soy milk based dahi. Considering the shortage along with high price of milk we could transfer the techniques to the manufacturer to produce and market the mango flavored soy milk based dahi. DOI: http://dx.doi.org/10.3329/bjas.v42i1.15779 Bang. J. Anim. Sci. 2013. 42 (1): 44-48

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Physico-chemical properties of C70-l-threonine bisadduct (C70(C4H9NO2)2) aqueous solutions

Journal of Molecular Liquids ◽

10.1016/j.molliq.2019.02.013 ◽

2019 ◽

Vol 279 ◽

pp. 687-699 ◽

Cited By ~ 6

Author(s):

Evgeny B. Serebryakov ◽

Dmitry N. Zakusilo ◽

Konstantin N. Semenov ◽

Nikolay A. Charykov ◽

Aleksandr V. Akentiev ◽

...

Keyword(s):

Aqueous Solutions ◽

Chemical Properties ◽

Physico Chemical

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Recovery of Cellulose Nanofiber from Lignocellulosic Biomass: Recent Trends and Applications

Current Analytical Chemistry ◽

10.2174/1573411016666200116094005 ◽

2020 ◽

Vol 16 ◽

Author(s):

Ria Majumdar ◽

Umesh Mishra ◽

Muthusivaramapandian Muthuraj ◽

Biswanath Bhunia

Keyword(s):

Lignocellulosic Biomass ◽

Low Cost ◽

Cellulose Nanofibers ◽

Environmental Pollutants ◽

Extraction Procedure ◽

Environmental Issues ◽

Cellulose Nanofiber ◽

Physico Chemical ◽

Recent Trends ◽

Tuning Strategy

Background: Plant is considered as an important feedstock for cellulose, although, algae can be used as reservoir for extraction of cellulose in its pure form. Cellulose nanofiber extracted from plant and algae gains more attention among researchers, due to their size in nano range, low cost for preparation, higher surface area available for tuning, outstanding mechanical properties and eco-friendly nature. However, the quality of nanofiber depends on extraction procedure and feedstock used for the extraction of them. Furthermore, the extracted nanofiber from lignocellulosic biomass is not compatible with liquid and polymeric matrices due to less amount of functional groups available on the surface of them. Therefore, it is urged to comprehend the explicit protocol required for extraction of highly resourceful nanofiber from specific lignocellulosic biomass and surface tuning strategy, which can augment their application in various fields. The present review targets to understand the various polysaccharides, lignin and production of cellulose nanofibers in an economical & efficient way with special attention on its implementation in environmental applications to mitigate the toxic pollutants from our surroundings. Methods: Research articles related to the cellulose types, feedstocks, physico-chemical features, various extraction and conversion techniques, functionalization methods, and applications on mitigating environmental pollution were collected and reviewed. This review article comprises sections which details various cellulose and nanocellulose types, feedtsocks, followed by their extraction, characterization and applications in mitigation of environmental issues such as heavy metal contaminations. Results: Studies highlighted in the article detailed types of extraction protocols, so far developed and strategies applied to improve the salient properties of nanofiber for specific applications are enlighten. Conclusion: The functionalized or modified cellulose and nanocellulose have gained significant interest attributed to their unique attributes, physico-chemical characteristics and efficiency in recovery of environmental pollutants. Thus, further exploitation of such natural resources in mitigation of various environmental issues and other realted applications are to be maximized.

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