Pub Date : 2018-12-03DOI: 10.18311/JSST/2018/17949
D. Sathya, V. Sivashankar, M. Rajkumar, R. Murugesan, D. P. Anand
Organic single crystal of Guanidine Acrylate (GuAcr) was grown by simple inexpensive slow evaporation technique. The grown crystal was subjected into various characterizations like single crystal XRD, UV-Vis, FTIR studies, electrical, mechanical properties and SHG technique. The XRD data shows that the crystal belongs to orthorhombic structure. The UV-Vis spectral studies observed that the cutoff wavelength of the grown crystal is 320nm. Optical band gap of the grown crystal was also calculated, and it was found to be 3.99 eV. Vibrational frequencies of GuAcr crystal were confirmed by FTIR spectra. Electrical properties of the GuAcr single crystals were studied using impedance spectroscopy. Decreasing impedance with increasing temperature is indicated that the negative temperature co-efficient of resistance behavior like an insulator. Dielectric response of the crystal with varying frequencies was also studied. Second harmonic generation of the title compound was studied using Kurtz Perry- powder SHG technique. It reveals that as grown crystal is suitable for Nonlinear Optical (NLO) device fabrications.
{"title":"Structural, Optical and Dielectric Characterization of Guanidine Acrylate (GuAcr) NLO Single Crystals","authors":"D. Sathya, V. Sivashankar, M. Rajkumar, R. Murugesan, D. P. Anand","doi":"10.18311/JSST/2018/17949","DOIUrl":"https://doi.org/10.18311/JSST/2018/17949","url":null,"abstract":"Organic single crystal of Guanidine Acrylate (GuAcr) was grown by simple inexpensive slow evaporation technique. The grown crystal was subjected into various characterizations like single crystal XRD, UV-Vis, FTIR studies, electrical, mechanical properties and SHG technique. The XRD data shows that the crystal belongs to orthorhombic structure. The UV-Vis spectral studies observed that the cutoff wavelength of the grown crystal is 320nm. Optical band gap of the grown crystal was also calculated, and it was found to be 3.99 eV. Vibrational frequencies of GuAcr crystal were confirmed by FTIR spectra. Electrical properties of the GuAcr single crystals were studied using impedance spectroscopy. Decreasing impedance with increasing temperature is indicated that the negative temperature co-efficient of resistance behavior like an insulator. Dielectric response of the crystal with varying frequencies was also studied. Second harmonic generation of the title compound was studied using Kurtz Perry- powder SHG technique. It reveals that as grown crystal is suitable for Nonlinear Optical (NLO) device fabrications.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44304251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-03DOI: 10.18311/JSST/2018/20074
J. A. Kumar, D. Amarnath, D. Venkatesan, K. V. Anand
Polycyclic Aromatic Hydrocarbons (PAHs), group of structurally related chemicals consisting of aromatic rings with no substitutions form a potent class of environmental pollutants. Removal of PAHs is necessary because it causes carcinogenic and mutagenic effects. Adsorption and Fenton’s process is chosen among all the other methods. Among the various adsorbents, palm shell activated carbon gave the best adsorption. But comparatively the efficiency of Fenton’s process is better than adsorption. Optimization of parameters such as temperature, time and dosage, concentration, pH are reported.
{"title":"Anthracene Removal by Adsorption and Fenton’s Process – A Comparative Study","authors":"J. A. Kumar, D. Amarnath, D. Venkatesan, K. V. Anand","doi":"10.18311/JSST/2018/20074","DOIUrl":"https://doi.org/10.18311/JSST/2018/20074","url":null,"abstract":"Polycyclic Aromatic Hydrocarbons (PAHs), group of structurally related chemicals consisting of aromatic rings with no substitutions form a potent class of environmental pollutants. Removal of PAHs is necessary because it causes carcinogenic and mutagenic effects. Adsorption and Fenton’s process is chosen among all the other methods. Among the various adsorbents, palm shell activated carbon gave the best adsorption. But comparatively the efficiency of Fenton’s process is better than adsorption. Optimization of parameters such as temperature, time and dosage, concentration, pH are reported.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49189660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-21DOI: 10.18311/JSST/2018/11055
M. Napitupulu, D. K. Walanda, Yoga Natakusuma, M. Basir, Mahfudz
The study examined the adsorption capacity of definite amount of biocharcoal of Durian barks (Durio zibethinus Murr) to adsorb Cadmium ions at various pH. Biocharcoal was made by using pyrolysis method. The adsorption was monitored by measuring the Atomic Absorption of Cd (II) at 228.8 nm. Result shows that the optimum adsorption of Cadmium ion is 93.46% and the weight is 16.62 mg/g with 80 mg biocharcoal. The optimum pH is 7.0 with the percentage uptake of the cadmium ion 97.94%, and the weight is 17.42 mg/g. The optimum concentration is 20 ppm which can adsorb Cadmium ion 91.97%, or 11.42 mg/g. By using Langmuir isotherm equation, the highest adsorption of biocharcoal of Durian’s barks measured is 33.33 mg/g, which is potential as commercial activated carbon.
{"title":"Capacity of Adsorption of Cadmium (II) Ion by Bio-charcoal from Durian Barks","authors":"M. Napitupulu, D. K. Walanda, Yoga Natakusuma, M. Basir, Mahfudz","doi":"10.18311/JSST/2018/11055","DOIUrl":"https://doi.org/10.18311/JSST/2018/11055","url":null,"abstract":"The study examined the adsorption capacity of definite amount of biocharcoal of Durian barks (Durio zibethinus Murr) to adsorb Cadmium ions at various pH. Biocharcoal was made by using pyrolysis method. The adsorption was monitored by measuring the Atomic Absorption of Cd (II) at 228.8 nm. Result shows that the optimum adsorption of Cadmium ion is 93.46% and the weight is 16.62 mg/g with 80 mg biocharcoal. The optimum pH is 7.0 with the percentage uptake of the cadmium ion 97.94%, and the weight is 17.42 mg/g. The optimum concentration is 20 ppm which can adsorb Cadmium ion 91.97%, or 11.42 mg/g. By using Langmuir isotherm equation, the highest adsorption of biocharcoal of Durian’s barks measured is 33.33 mg/g, which is potential as commercial activated carbon.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42164973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-21DOI: 10.18311/JSST/2018/15838
J. G. Manjunatha
A carbon paste electrode modified with electropolymerization of glycine exhibited an attractive performance for the detection and determination of a anticancer drug, Mitoxantrone (MTX). Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV) were used in a combined way to identify the electrochemical characteristics and to optimize the conditions for detection of MTX. The electrochemical behaviour of MTX was investigated and a well-defined oxidation peak with high sensitivity was observed at the film electrode. Poly (Glycine) Modified Carbon Paste Electrode (PGMCPE) greatly enhanced the oxidation peak current of MTX owing to the extraordinary properties of glycine film. Based on this, a sensitive and simple voltammetric method was developed for measurement of MTX. A sensitive linear voltammetric response for MTX was obtained in the concentration range of 4×10 −8 -1×10 -5 mol/L, detection limit was 3.2×10 −7 M and quantification limit was 10×10 −7 M using CV. The proposed method possessed advantages such as low detection limit, fast response, low cost and simplicity.
{"title":"Highly Sensitive Polymer based Sensor for Determination of the Drug Mitoxantrone","authors":"J. G. Manjunatha","doi":"10.18311/JSST/2018/15838","DOIUrl":"https://doi.org/10.18311/JSST/2018/15838","url":null,"abstract":"A carbon paste electrode modified with electropolymerization of glycine exhibited an attractive performance for the detection and determination of a anticancer drug, Mitoxantrone (MTX). Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV) were used in a combined way to identify the electrochemical characteristics and to optimize the conditions for detection of MTX. The electrochemical behaviour of MTX was investigated and a well-defined oxidation peak with high sensitivity was observed at the film electrode. Poly (Glycine) Modified Carbon Paste Electrode (PGMCPE) greatly enhanced the oxidation peak current of MTX owing to the extraordinary properties of glycine film. Based on this, a sensitive and simple voltammetric method was developed for measurement of MTX. A sensitive linear voltammetric response for MTX was obtained in the concentration range of 4×10 −8 -1×10 -5 mol/L, detection limit was 3.2×10 −7 M and quantification limit was 10×10 −7 M using CV. The proposed method possessed advantages such as low detection limit, fast response, low cost and simplicity.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48711627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-21DOI: 10.18311/JSST/2018/16325
V. Ram, P. Dave, S. Sadhu, Mital K. Aadesariya, E. Khosla
The contamination of heavy metals to the environment, i.e., soil, water, plant and air is of great concern due to their potential impact on human and animal health. Lead causes pollution and affects all the systems of the human body. The present study highlights experimental data on low cost adsorbent like leaf powder of plant Abutilon pannosum (APL) for removal of heavy metal (Pb 2+ ) ions. The adsorbent material opted was found to be an efficient material for removal of Lead (II). The present study aimed to identify efficient medium for the removal of heavy metal with various parameters like adsorbent dosages, concentration, agitation time, temperature and pH. This report also identified the adsorption capacity of APL leaf powder. The experiments were done using Atomic absorption spectrometer. Different isotherm models like Freundlich isotherm, Langmuir Isotherm, Temkin isotherm, Dubinin-Radushkevich isotherm, Redlich-Peterson isotherm, Sips or Langmuir-Freundlich isotherm, Halsey adsorption Isotherm, Khan isotherm for understanding the mechanism of the process. Thermodynamic parameters were studied at different temperatures 295 to 312 K to evaluate the nature of adsorption of Pb 2+ by APL powder. The two parameter isotherm coefficients (R2>0.99) for kinetics of the process were studied using Pseudo first order, Pseudo second order, Elovich equation, Intra-particle diffusion and Bangham equations. This study has demonstrated that the plant materials of Abutilon pannosum can be used as an effective bio absorbent for removal of lead from aqueous solutions.
{"title":"Batch Experiment of Removal of Heavy Metal (Pb) (II) by use of Inexpensive Bio Absorbent Leaf of Abutilon pannosum (APL)","authors":"V. Ram, P. Dave, S. Sadhu, Mital K. Aadesariya, E. Khosla","doi":"10.18311/JSST/2018/16325","DOIUrl":"https://doi.org/10.18311/JSST/2018/16325","url":null,"abstract":"The contamination of heavy metals to the environment, i.e., soil, water, plant and air is of great concern due to their potential impact on human and animal health. Lead causes pollution and affects all the systems of the human body. The present study highlights experimental data on low cost adsorbent like leaf powder of plant Abutilon pannosum (APL) for removal of heavy metal (Pb 2+ ) ions. The adsorbent material opted was found to be an efficient material for removal of Lead (II). The present study aimed to identify efficient medium for the removal of heavy metal with various parameters like adsorbent dosages, concentration, agitation time, temperature and pH. This report also identified the adsorption capacity of APL leaf powder. The experiments were done using Atomic absorption spectrometer. Different isotherm models like Freundlich isotherm, Langmuir Isotherm, Temkin isotherm, Dubinin-Radushkevich isotherm, Redlich-Peterson isotherm, Sips or Langmuir-Freundlich isotherm, Halsey adsorption Isotherm, Khan isotherm for understanding the mechanism of the process. Thermodynamic parameters were studied at different temperatures 295 to 312 K to evaluate the nature of adsorption of Pb 2+ by APL powder. The two parameter isotherm coefficients (R2>0.99) for kinetics of the process were studied using Pseudo first order, Pseudo second order, Elovich equation, Intra-particle diffusion and Bangham equations. This study has demonstrated that the plant materials of Abutilon pannosum can be used as an effective bio absorbent for removal of lead from aqueous solutions.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41910891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-21DOI: 10.18311/JSST/2018/14738
Abdallah Ouerdane, M. Ghaffour, Z. Hachoun, M. Abdelkrim, M. Bedrouni, Y. Caudano
We used Transmission Electron Microscopy TEM, Energy Dispersive X-ray (EDX), X-ray Diffraction (XRD) and impedance spectroscopy to study SnO 2 doped by sputtered Ag atoms on its surface. The morphology of the surface texture showed large Ag islands in SnO 2 bulk when the system was submitted to heating. These results were well confirmed by EDX spectrum, TEM scanning micrograph and impedance spectroscopy. Furthermore, TRIM software was used to show the effects of nuclear and electron stopping range on optical properties of the crystal Ag-SnO 2 and the depth reached by Ag into SnO 2 bulk.
{"title":"Characterization of Ag Doped SnO2 for Gas Sensing Application","authors":"Abdallah Ouerdane, M. Ghaffour, Z. Hachoun, M. Abdelkrim, M. Bedrouni, Y. Caudano","doi":"10.18311/JSST/2018/14738","DOIUrl":"https://doi.org/10.18311/JSST/2018/14738","url":null,"abstract":"We used Transmission Electron Microscopy TEM, Energy Dispersive X-ray (EDX), X-ray Diffraction (XRD) and impedance spectroscopy to study SnO 2 doped by sputtered Ag atoms on its surface. The morphology of the surface texture showed large Ag islands in SnO 2 bulk when the system was submitted to heating. These results were well confirmed by EDX spectrum, TEM scanning micrograph and impedance spectroscopy. Furthermore, TRIM software was used to show the effects of nuclear and electron stopping range on optical properties of the crystal Ag-SnO 2 and the depth reached by Ag into SnO 2 bulk.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45895006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-21DOI: 10.18311/JSST/2018/18036
Uplabdhi Tyagi, V. Khandegar
This research aims to investigate the bio-sorption potential of V. zizanioides as a bio-adsorbent for removal of Cr (VI) from aqueous solution. Batch experiments were carried out with grass and roots of V. zizanioides in order to analyze biosorptive potential. The performance parameters of the biosorbents covered contact time, adsorbent dosage, initial concentration, temperature and pH of the aqueous solution. It was observed that the solution pH significantly affects the Cr (VI) removal efficiency using raw (grass and roots of V. zizanioides ). Therefore, the grass and roots were treated by acid and base solution to get higher sorption behavior. The higher removal efficiency (98% and 92%) has been achieved using acid treated grass and roots at 1 (mg/L) of Cr (VI) concentration respectively. Biosorbent and chromium interaction was investigated by Langmuir and Freundlich isotherms for the proposed bio-adsorption process. The maximum adsorption capacity was observed (0.42 mg/g and 0.199 mg/g) using grass and roots respectively. The data best fitted the Langmuir model indicating monolayer adsorption. Kinetic aspects were examined to achieve thermodynamic equilibrium and found that the rate of adsorption has good correlation with pseudo-second-order kinetics. In addition, diffusion models demonstrate that intraparticle diffusion is the sole rate-limiting step in this particular bio-sorption. An evaluation of thermodynamic parameters, namely ΔH°, ΔS° and ΔG°, indicate that the adsorption was feasible, spontaneous and endothermic in nature. The low values of ΔH° and ΔG° correspond to physical adsorption. The results reveal that V. zizanioides can be successfully used to remove Cr (VI) from aqueous solution.
{"title":"Bio-Sorption Potential of V. zizanioides Grass and Roots for the Removal of Cr (VI)","authors":"Uplabdhi Tyagi, V. Khandegar","doi":"10.18311/JSST/2018/18036","DOIUrl":"https://doi.org/10.18311/JSST/2018/18036","url":null,"abstract":"This research aims to investigate the bio-sorption potential of V. zizanioides as a bio-adsorbent for removal of Cr (VI) from aqueous solution. Batch experiments were carried out with grass and roots of V. zizanioides in order to analyze biosorptive potential. The performance parameters of the biosorbents covered contact time, adsorbent dosage, initial concentration, temperature and pH of the aqueous solution. It was observed that the solution pH significantly affects the Cr (VI) removal efficiency using raw (grass and roots of V. zizanioides ). Therefore, the grass and roots were treated by acid and base solution to get higher sorption behavior. The higher removal efficiency (98% and 92%) has been achieved using acid treated grass and roots at 1 (mg/L) of Cr (VI) concentration respectively. Biosorbent and chromium interaction was investigated by Langmuir and Freundlich isotherms for the proposed bio-adsorption process. The maximum adsorption capacity was observed (0.42 mg/g and 0.199 mg/g) using grass and roots respectively. The data best fitted the Langmuir model indicating monolayer adsorption. Kinetic aspects were examined to achieve thermodynamic equilibrium and found that the rate of adsorption has good correlation with pseudo-second-order kinetics. In addition, diffusion models demonstrate that intraparticle diffusion is the sole rate-limiting step in this particular bio-sorption. An evaluation of thermodynamic parameters, namely ΔH°, ΔS° and ΔG°, indicate that the adsorption was feasible, spontaneous and endothermic in nature. The low values of ΔH° and ΔG° correspond to physical adsorption. The results reveal that V. zizanioides can be successfully used to remove Cr (VI) from aqueous solution.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47238104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-21DOI: 10.18311/JSST/2018/21321
A. Rakshit, S. P. Moulik
Abnormal behaviour of strong electrolytes was a hot research topic around the turn of twentieth century. In 1918, J. C. Ghosh published a series of articles dealing with this abnormal behaviour and suggested a cube root law for data correlation. The publications were both praised and criticised. Debye and Huckel published in 1923 their well-known theory of strong electrolytes, the square root law, which completely overshadowed Ghosh’s theory. By the middle of twentieth century, however, Ghosh’s theory became prominent again, particularly for concentrated electrolyte solutions, in the light of pseudo-lattice theory of strong electrolytes. In this article, we discuss some features and historical developments of Ghosh’s theory to commemorate its centenary year.
{"title":"One Hundred Years of Ghosh’s Strong Electrolyte Theory","authors":"A. Rakshit, S. P. Moulik","doi":"10.18311/JSST/2018/21321","DOIUrl":"https://doi.org/10.18311/JSST/2018/21321","url":null,"abstract":"Abnormal behaviour of strong electrolytes was a hot research topic around the turn of twentieth century. In 1918, J. C. Ghosh published a series of articles dealing with this abnormal behaviour and suggested a cube root law for data correlation. The publications were both praised and criticised. Debye and Huckel published in 1923 their well-known theory of strong electrolytes, the square root law, which completely overshadowed Ghosh’s theory. By the middle of twentieth century, however, Ghosh’s theory became prominent again, particularly for concentrated electrolyte solutions, in the light of pseudo-lattice theory of strong electrolytes. In this article, we discuss some features and historical developments of Ghosh’s theory to commemorate its centenary year.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":"34 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42359879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-21DOI: 10.18311/JSST/2018/18112
U. Raju, Atul Varshney, Ashok Kumar
In this work we have established excellent adsorption properties of Multi-metal citrate complexes for the capture of Organic dyes. These complexes exhibit mesoporous character with pore diameter ≈ 40A and narrow pore size distribution in their structure as demonstrated by fitting experimental adsorption data into Barrett, Joyner and Halenda (BJH) and Density Functional Theory (DFT) models. Thus these materials have the potential of being used as scavengers for dye stuff removal from industrial waste discharge in the water stream and may replace the high cost carbon adsorbents to capture dye molecules and curb water pollution with resultant toxic, carcinogenic and mutagenic effects of dye stuff on living beings. The mesoporous Zinc, Nickel, Iron, Copper multi-metal citrate complexes with different combinations of these metal ions and citric acid linker have been synthesized under mild hydrothermal conditions through green synthetic pathways. Because of their biocompatibility and non toxicity, these low cost mesoporous materials may prove boon for transport of dyes used as contrast agents during diagnostics applications due to their increased image contrast and chemical stability.
{"title":"Mesoporous Multi-Metal Citrates as Scavengers for Organic Dyes","authors":"U. Raju, Atul Varshney, Ashok Kumar","doi":"10.18311/JSST/2018/18112","DOIUrl":"https://doi.org/10.18311/JSST/2018/18112","url":null,"abstract":"In this work we have established excellent adsorption properties of Multi-metal citrate complexes for the capture of Organic dyes. These complexes exhibit mesoporous character with pore diameter ≈ 40A and narrow pore size distribution in their structure as demonstrated by fitting experimental adsorption data into Barrett, Joyner and Halenda (BJH) and Density Functional Theory (DFT) models. Thus these materials have the potential of being used as scavengers for dye stuff removal from industrial waste discharge in the water stream and may replace the high cost carbon adsorbents to capture dye molecules and curb water pollution with resultant toxic, carcinogenic and mutagenic effects of dye stuff on living beings. The mesoporous Zinc, Nickel, Iron, Copper multi-metal citrate complexes with different combinations of these metal ions and citric acid linker have been synthesized under mild hydrothermal conditions through green synthetic pathways. Because of their biocompatibility and non toxicity, these low cost mesoporous materials may prove boon for transport of dyes used as contrast agents during diagnostics applications due to their increased image contrast and chemical stability.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41921235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-21DOI: 10.18311/JSST/2018/18083
Kumudini Aher, S. Bhagwat
Lauramidopropyl dimethylamine was quaternised using Lauryl Bromide to synthesize a double chain cationic surfactant. The surfactant was obtained in good yield without the use of any solvent. Amidoamine cationic surfactant chemical structure was analyzed using mass spectroscopic technique. The physicochemical properties of the amidoamine surfactant were calculated from surface tension and conductance measurements giving a critical micelle concentration of 8.04 × 10 -3 mM which is quite lower than conventional surfactants. The amidoamine also exhibits a good foaming ability and wettability. The amidoamine cationic surfactant was evaluated for efficacy against different microorganisms and the results show that it has good antimicrobial activity against both Gram positive and Gram negative bacteria.
{"title":"Solvent Free Synthesis, Characterization and Evaluation of Dimethylaminopropylamine based Double Tailed Amidoamine Cationic Surfactant","authors":"Kumudini Aher, S. Bhagwat","doi":"10.18311/JSST/2018/18083","DOIUrl":"https://doi.org/10.18311/JSST/2018/18083","url":null,"abstract":"Lauramidopropyl dimethylamine was quaternised using Lauryl Bromide to synthesize a double chain cationic surfactant. The surfactant was obtained in good yield without the use of any solvent. Amidoamine cationic surfactant chemical structure was analyzed using mass spectroscopic technique. The physicochemical properties of the amidoamine surfactant were calculated from surface tension and conductance measurements giving a critical micelle concentration of 8.04 × 10 -3 mM which is quite lower than conventional surfactants. The amidoamine also exhibits a good foaming ability and wettability. The amidoamine cationic surfactant was evaluated for efficacy against different microorganisms and the results show that it has good antimicrobial activity against both Gram positive and Gram negative bacteria.","PeriodicalId":17031,"journal":{"name":"Journal of Surface Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49482652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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