Pub Date : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609391
M. Agarwal, U. Singh, R. Dusane, Ankur Soam
In photovoltaic technology, texturing of base wafer has great importance since it reduces the reflectance of incident light that leads to improvement in the conversion efficiency. Due to different orientations present in polycrystalline silicon wafer an isotropic etching and the texturing without grain boundary delineation is great challenge. In this study, an attempt has been made to get isotropic etching by acidic solution. The volume ratios of HF/HNO3/ CH3COOH have been chosen in such a way that it fell in lower part of iso-etch curve where the solution is HNO3 rich. The presence of high concentration of HNO3 leads to the rapid oxidation of silicon surface and hence makes the etching rate limited through the diffusion of HF into the SiO2. This study shows the isotropic etching of poly-Si wafer which is confirmed by scanning electron microscopy. Moreover, the reflectance measurements show that the average reflectance reduces from 20.5 to 8.5 % over 350 to 800 nm range.
{"title":"Isotropic etching of polycrystalline silicon wafer by acidic solution","authors":"M. Agarwal, U. Singh, R. Dusane, Ankur Soam","doi":"10.1109/ICANMEET.2013.6609391","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609391","url":null,"abstract":"In photovoltaic technology, texturing of base wafer has great importance since it reduces the reflectance of incident light that leads to improvement in the conversion efficiency. Due to different orientations present in polycrystalline silicon wafer an isotropic etching and the texturing without grain boundary delineation is great challenge. In this study, an attempt has been made to get isotropic etching by acidic solution. The volume ratios of HF/HNO3/ CH3COOH have been chosen in such a way that it fell in lower part of iso-etch curve where the solution is HNO3 rich. The presence of high concentration of HNO3 leads to the rapid oxidation of silicon surface and hence makes the etching rate limited through the diffusion of HF into the SiO2. This study shows the isotropic etching of poly-Si wafer which is confirmed by scanning electron microscopy. Moreover, the reflectance measurements show that the average reflectance reduces from 20.5 to 8.5 % over 350 to 800 nm range.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"36 1","pages":"689-691"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83528681","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609366
D. Ramachandran, J. Brijitta, N. Raj, V. Jayanthi, A. M. Rabel
In this paper we report a simple and versatile wet chemical route to synthesize bulk amounts of high quality Zinc Oxide nanorods. The purified nanorods have been characterized for its size and shape using FESEM, optical properties using UV-Visible spectrophotometer and crystal structure using XRD. The length and width of the nanorods are 311 ± 68 nm, 39 ± 10 nm respectively. The UV-Visible absorption spectrum shows an absorption peak at 370 nm due to Zinc Oxide nanorods. XRD analysis revealed hexagonal Wurtzite structure of the Zinc Oxide nanorods with crystallite size being 29.3 nm.
{"title":"Synthesis and characterization of Zinc Oxide nanorods","authors":"D. Ramachandran, J. Brijitta, N. Raj, V. Jayanthi, A. M. Rabel","doi":"10.1109/ICANMEET.2013.6609366","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609366","url":null,"abstract":"In this paper we report a simple and versatile wet chemical route to synthesize bulk amounts of high quality Zinc Oxide nanorods. The purified nanorods have been characterized for its size and shape using FESEM, optical properties using UV-Visible spectrophotometer and crystal structure using XRD. The length and width of the nanorods are 311 ± 68 nm, 39 ± 10 nm respectively. The UV-Visible absorption spectrum shows an absorption peak at 370 nm due to Zinc Oxide nanorods. XRD analysis revealed hexagonal Wurtzite structure of the Zinc Oxide nanorods with crystallite size being 29.3 nm.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"44 1","pages":"566-568"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77065181","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609350
B. D. Diwan, S. Murugan
In this paper we have analyzed the effect of size and number of atom-pairs in normalized per atom pair binding (cohesive) energy and melting temperature of the Indium nitride ( InN ) nano-particle using simple model approach. It is observed that the per-atom-pair binding (cohesive) energy and melting temperature are a quadratic function of the inverse of the particle size for InN nano-particle. The per atom-pair binding (cohesive) energy and melting temperature comes near that of their bulk value with increasing the particle size and same as the bulk material when the particle size is above than 100 nm.
{"title":"Role of surface bonding in thermo physical properties of Indium nitride nano-semiconductor","authors":"B. D. Diwan, S. Murugan","doi":"10.1109/ICANMEET.2013.6609350","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609350","url":null,"abstract":"In this paper we have analyzed the effect of size and number of atom-pairs in normalized per atom pair binding (cohesive) energy and melting temperature of the Indium nitride ( InN ) nano-particle using simple model approach. It is observed that the per-atom-pair binding (cohesive) energy and melting temperature are a quadratic function of the inverse of the particle size for InN nano-particle. The per atom-pair binding (cohesive) energy and melting temperature comes near that of their bulk value with increasing the particle size and same as the bulk material when the particle size is above than 100 nm.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"1 1","pages":"509-512"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85936137","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609361
P. Dhivya, M. Sridharan
Titanium dioxide (TiO2) films were deposited by reactive dc-magnetron sputtering technique on to non-conducting glass substrates are deposited at different bias voltage ranging from floating potential to - 200 V. We reported the growth of the rutile phase on to glass substrates at relatively low deposition temperature. XRD shows the growth of the anatase and small fraction of rutile phase at floating potential and the rutile fraction increased with increasing bias voltage. On increasing the bias voltage from floating potential to - 200 V the cluster size of the films were increases from 20 to 30 nm. The root mean square roughness (Rrms) of the films increased from 5.89 to 16.02 nm on increasing the substrate bias. The optical bandgap values are found to decrease whereas the optical constant (refractive index and extinction coefficient) increased with increasing bias voltage. The contact angle studies showed increasing surface energy with increasing substrate bias from floating potential to - 200 V.
{"title":"Low temperature formation of rutile TiO2 films","authors":"P. Dhivya, M. Sridharan","doi":"10.1109/ICANMEET.2013.6609361","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609361","url":null,"abstract":"Titanium dioxide (TiO2) films were deposited by reactive dc-magnetron sputtering technique on to non-conducting glass substrates are deposited at different bias voltage ranging from floating potential to - 200 V. We reported the growth of the rutile phase on to glass substrates at relatively low deposition temperature. XRD shows the growth of the anatase and small fraction of rutile phase at floating potential and the rutile fraction increased with increasing bias voltage. On increasing the bias voltage from floating potential to - 200 V the cluster size of the films were increases from 20 to 30 nm. The root mean square roughness (Rrms) of the films increased from 5.89 to 16.02 nm on increasing the substrate bias. The optical bandgap values are found to decrease whereas the optical constant (refractive index and extinction coefficient) increased with increasing bias voltage. The contact angle studies showed increasing surface energy with increasing substrate bias from floating potential to - 200 V.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"132 1","pages":"547-553"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84918564","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609360
Ramanjyot Kaur, R. Sawhney, R. Kaur
In this research paper, we scrutinised the impact of variations in the bondlength of a Cadmium sulphide nanowire on the electron transport properties. We contemplated that if the bond length of the nanowirewas either elongatedor shortened, there was a definite impact on the electrical transport characteristics. The effect of changing bond length was observed on the values of current and conductance of the nanowire and the relative stress induced on the system under consideration. We elucidated that the bond length plays an important role in Nano meter-scale electron transport characteristics through nanowire stringed to macroscopic gold electrodes. The observed results from our findings have been plotted in terms of percentage variations in conductance as well as current for the changes brought towards elongation or shortening of the nanowire. The vital information collected through this simulation work can be significantly beneficial in molecular electronics especially as potential candidates for sensor, solar cells and bio-medical applications.
{"title":"Bond length dependent transport properties of inorganic nanowire","authors":"Ramanjyot Kaur, R. Sawhney, R. Kaur","doi":"10.1109/ICANMEET.2013.6609360","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609360","url":null,"abstract":"In this research paper, we scrutinised the impact of variations in the bondlength of a Cadmium sulphide nanowire on the electron transport properties. We contemplated that if the bond length of the nanowirewas either elongatedor shortened, there was a definite impact on the electrical transport characteristics. The effect of changing bond length was observed on the values of current and conductance of the nanowire and the relative stress induced on the system under consideration. We elucidated that the bond length plays an important role in Nano meter-scale electron transport characteristics through nanowire stringed to macroscopic gold electrodes. The observed results from our findings have been plotted in terms of percentage variations in conductance as well as current for the changes brought towards elongation or shortening of the nanowire. The vital information collected through this simulation work can be significantly beneficial in molecular electronics especially as potential candidates for sensor, solar cells and bio-medical applications.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"25 1","pages":"536-539"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87053811","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609242
K. Sri Sindhura, T. Prasad, O. M. Hussain
Synthesis of phytogenic metallic nanoparticles is currently under exploitation. Application of plant materials for the synthesis of metal nanoparticles is considered to be one of the fastest emerging research branches of nanobiotechnology. In the present study we have synthesized zinc nanoparticles by treating the leaf extract of Hibiscus rosasinensis with different concentrations of zinc nitrate. UV-Vis absorption peak at 269nm wavelength confirmed the formation of zinc nanoparticles at an elevated temperature. The formed zinc nanoparticles were observed to be triangular in shape with size range of 32.7 - 89.8 nm. The measured zeta potentials 22.8 mV and 30.8 mV respectively indicate high dispersion of nanoparticles. The synthesized zinc nanoparticles exhibited good antimicrobial activity.
{"title":"Synthesis and characterization of phytogenic zinc nanoparticles and their antimicrobial activity","authors":"K. Sri Sindhura, T. Prasad, O. M. Hussain","doi":"10.1109/ICANMEET.2013.6609242","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609242","url":null,"abstract":"Synthesis of phytogenic metallic nanoparticles is currently under exploitation. Application of plant materials for the synthesis of metal nanoparticles is considered to be one of the fastest emerging research branches of nanobiotechnology. In the present study we have synthesized zinc nanoparticles by treating the leaf extract of Hibiscus rosasinensis with different concentrations of zinc nitrate. UV-Vis absorption peak at 269nm wavelength confirmed the formation of zinc nanoparticles at an elevated temperature. The formed zinc nanoparticles were observed to be triangular in shape with size range of 32.7 - 89.8 nm. The measured zeta potentials 22.8 mV and 30.8 mV respectively indicate high dispersion of nanoparticles. The synthesized zinc nanoparticles exhibited good antimicrobial activity.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"1 1","pages":"87-90"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91023725","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609382
P. A. G. Sankar, K. Kumar
Carbon Nanotube Field-Effect Transistor (CNFET) is a promising candidate for future electronic devices for low-power low-voltage digital or analog circuit application. In this paper, we presented a low-power low-voltage two stage operational amplifiers (OPAMPs) based on emerging CNFET technology. The proposed CNFET based operational amplifier (OPAMP) performance characteristic are studied and compared with existing CMOS sub-32nm technology. The operational amplifier performance characteristics are obtained by using HSPICE software for circuit simulation at 0.9V input supply voltage. Simulation results show that the proposed CNFET OPAMP circuit achieve high dc gain more than 45dB, high Gain Bandwidth up to 198MHz, phase margin is 48 degrees, the output swing is ±0.9V, settling time is 0.754ns, CMRR is 52.45dB, power supply rejection ratio is 54.35dB and low static power dissipation of 13μW. The results obtained suggest that the carbon nanotube (CNT) OPAMP has a promising potential for low-power, highs-peed applications in both analog and mixed-signal nanoelectronic circuits.
{"title":"Design and analysis of two stage operational amplifier based on emerging sub-32nm technology","authors":"P. A. G. Sankar, K. Kumar","doi":"10.1109/ICANMEET.2013.6609382","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609382","url":null,"abstract":"Carbon Nanotube Field-Effect Transistor (CNFET) is a promising candidate for future electronic devices for low-power low-voltage digital or analog circuit application. In this paper, we presented a low-power low-voltage two stage operational amplifiers (OPAMPs) based on emerging CNFET technology. The proposed CNFET based operational amplifier (OPAMP) performance characteristic are studied and compared with existing CMOS sub-32nm technology. The operational amplifier performance characteristics are obtained by using HSPICE software for circuit simulation at 0.9V input supply voltage. Simulation results show that the proposed CNFET OPAMP circuit achieve high dc gain more than 45dB, high Gain Bandwidth up to 198MHz, phase margin is 48 degrees, the output swing is ±0.9V, settling time is 0.754ns, CMRR is 52.45dB, power supply rejection ratio is 54.35dB and low static power dissipation of 13μW. The results obtained suggest that the carbon nanotube (CNT) OPAMP has a promising potential for low-power, highs-peed applications in both analog and mixed-signal nanoelectronic circuits.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"67 1","pages":"587-591"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91068606","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609400
V. Ravi Teja Reddy, K. Krupakar Reddy, S. Ravindra
Electrospinning is a versatile method to produce fibers to obtain sub-micron range structures. In this present work, we fabricated PVP fibers by electrospinning technique. Various experimental parameters such as distance between the tip and collector, voltage applied, flow rate have been optimized and the effect of these experimental parameters on the diameter of the fibers is studied using a high resolution optical microscope. For a flow rate of 0.5 ml/h, voltage of 25 kV, tip to collector distance of 12 cm and 10% polymer concentration, the fibers obtained were uniform with a diameter of 520 nm.
{"title":"Effect of optimization parameters on the diameter of PVP fibers fabricated by electrospinning technique","authors":"V. Ravi Teja Reddy, K. Krupakar Reddy, S. Ravindra","doi":"10.1109/ICANMEET.2013.6609400","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609400","url":null,"abstract":"Electrospinning is a versatile method to produce fibers to obtain sub-micron range structures. In this present work, we fabricated PVP fibers by electrospinning technique. Various experimental parameters such as distance between the tip and collector, voltage applied, flow rate have been optimized and the effect of these experimental parameters on the diameter of the fibers is studied using a high resolution optical microscope. For a flow rate of 0.5 ml/h, voltage of 25 kV, tip to collector distance of 12 cm and 10% polymer concentration, the fibers obtained were uniform with a diameter of 520 nm.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"142 1","pages":"733-736"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81535837","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609236
Y. Suresh, S. Annapurna, G. Bhikshamaiah, A. Singh
Green synthesis of metal nanoparticles is considered to be a cost effective and eco-friendly approach. In the present study copper nanoparticles were synthesized successfully through chemical reduction of different copper salts stabilized by potato starch. The resulting copper nanoparticles were characterized by X-Ray Diffraction (XRD) spectrum, Fourier Transform Infrared (FTIR) Spectroscopy, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) to study the size and shape of the particles and functional group of the stabilizing agent. The particle sizes are found to be in the range of 5 to 40 nm with FCC structure of copper nanoparticles. The rate of formation of copper nanoparticles was studied by using UV Visible Absorption Spectroscopy by measuring the absorbance at around 554 nm. The Surface Enhanced Raman Spectroscopy (SERS) results showed the formation of copper nanoparticles.
{"title":"Characterization of green synthesized copper nanoparticles: A novel approach","authors":"Y. Suresh, S. Annapurna, G. Bhikshamaiah, A. Singh","doi":"10.1109/ICANMEET.2013.6609236","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609236","url":null,"abstract":"Green synthesis of metal nanoparticles is considered to be a cost effective and eco-friendly approach. In the present study copper nanoparticles were synthesized successfully through chemical reduction of different copper salts stabilized by potato starch. The resulting copper nanoparticles were characterized by X-Ray Diffraction (XRD) spectrum, Fourier Transform Infrared (FTIR) Spectroscopy, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) to study the size and shape of the particles and functional group of the stabilizing agent. The particle sizes are found to be in the range of 5 to 40 nm with FCC structure of copper nanoparticles. The rate of formation of copper nanoparticles was studied by using UV Visible Absorption Spectroscopy by measuring the absorbance at around 554 nm. The Surface Enhanced Raman Spectroscopy (SERS) results showed the formation of copper nanoparticles.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"185 1","pages":"63-67"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79801212","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 : 2013-07-24DOI: 10.1109/ICANMEET.2013.6609397
T. Hajeeth, T. Gomathi, P. Sudha
This study mainly concerns with the removal of heavy metal ions such as copper and nickel from aqueous solution with the prepared cellulose graft acrylonitrile as an adsorbent using adsorption process. The effect of pH, contact time, and initial adsorbent dosage on the metal ion adsorption capacity was investigated. The obtained results indicate that the adsorption amount of heavy metal ions increased with the increase of shaking time, adsorbent dose and pH of the media which revealed that the optimum pH and adsorbent dosage for both Cu(II) and Ni(II) was found to be pH 5 and 4 gm. The optimum contact time for copper and nickel metal ion was observed to be around 200 minutes and 240 minutes. The experimental results were examined using the Langmuir and Freundlich isotherms to obtain the appropriate model. The observed results indicate that the Freundlich equation was the best model for both Cu(II) ion and Ni(II). From the above results it was concluded that the cellulose graft acrylonitrile copolymer was found to be the efficient adsorbent for copper(II) and nickel (II) under optimum conditions.
{"title":"Adsorption of copper (Ii) and nickel (Ii) ions from metal solution using graft copolymer of cellulose extracted from the sisal fiber with acrylonitrile monomer","authors":"T. Hajeeth, T. Gomathi, P. Sudha","doi":"10.1109/ICANMEET.2013.6609397","DOIUrl":"https://doi.org/10.1109/ICANMEET.2013.6609397","url":null,"abstract":"This study mainly concerns with the removal of heavy metal ions such as copper and nickel from aqueous solution with the prepared cellulose graft acrylonitrile as an adsorbent using adsorption process. The effect of pH, contact time, and initial adsorbent dosage on the metal ion adsorption capacity was investigated. The obtained results indicate that the adsorption amount of heavy metal ions increased with the increase of shaking time, adsorbent dose and pH of the media which revealed that the optimum pH and adsorbent dosage for both Cu(II) and Ni(II) was found to be pH 5 and 4 gm. The optimum contact time for copper and nickel metal ion was observed to be around 200 minutes and 240 minutes. The experimental results were examined using the Langmuir and Freundlich isotherms to obtain the appropriate model. The observed results indicate that the Freundlich equation was the best model for both Cu(II) ion and Ni(II). From the above results it was concluded that the cellulose graft acrylonitrile copolymer was found to be the efficient adsorbent for copper(II) and nickel (II) under optimum conditions.","PeriodicalId":13708,"journal":{"name":"International Conference on Advanced Nanomaterials & Emerging Engineering Technologies","volume":"76 1","pages":"718-724"},"PeriodicalIF":0.0,"publicationDate":"2013-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89253160","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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