Removal of methylene blue using biochar from cassava peel (Manihot utilissima) modified by sodium dodecyl sulphate (SDS) surfactant

2020 ◽  
Author(s):  
Argo Khoirul Anas ◽  
Aqidatul Izzah ◽  
Sandy Yudha Pratama ◽  
Febi Indah Fajarwati
Keyword(s):  
Methylene Blue ◽  
Sodium Dodecyl Sulphate ◽  
Sodium Dodecyl ◽  
Sds Surfactant ◽  
Cassava Peel

scholarly journals Synthesis of Micro/nano Urchin-like VO2 Particles and Its Decolorization of Methylene Blue

2019 ◽  
Vol 35 (3) ◽  
Author(s):  
Nguyen The Manh ◽  
Duong Hong Quan ◽  
Vu Thi Ngoc Minh ◽  
Vuong Pham Hung
Keyword(s):  
Methylene Blue ◽  
Sodium Dodecyl ◽  
Adsorption Properties ◽  
Contaminated Water ◽  
Potential Applications ◽  
Synthesis Procedure ◽  
Water Treatments ◽  
Sds Surfactant ◽  
Mb Adsorption

Micro/nano urchin-like VO2 particles were synthesized successfully by hydrothermal method. Vanadium pentoxide (V2O5), oxalic acid (C2H2O4) and sodium dodecyl sulfate (SDS) surfactant were used as reagents for the synthesis of VO2. In this article, we have reported the synthesis procedure of VO2 nanorods and micro/nano urchin-like VO2 structure and evaluating the methylene blue (MB) adsorption properties. Morphology and particle size of VO2 were observed by FE-SEM. The phase formation of VO2 was studied by XRD. Raman spectroscopy was also used for characterization of VO2. Micro/nano urchin-like VO2 structure was showed good MB adsorption properties that have potential applications in dye-contaminated water treatments.

scholarly journals Development of low pressure reverse osmosis membrane for desalination process

2019 ◽  
Vol 4 (3) ◽  
Author(s):  
Abdul Rahman Hassan ◽  
Al Dabbaas Khuzama Mansoor A ◽  
Nor Azirah Sulaiman ◽  
Nurul Hannan Mohd Safari ◽  
Sabariah Rozali
Keyword(s):  
Reverse Osmosis ◽  
Sodium Dodecyl Sulphate ◽  
Brackish Water ◽  
Pure Water ◽  
Sodium Dodecyl ◽  
Low Pressure ◽  
Real Problem ◽  
Sustainable Solutions ◽  
Water Permeation ◽  
Sds Surfactant

Water shortage has become a real problem at global level and therefore, new and innovative technologies were established to provide sustainable solutions to water crisis. One of the effective approaches to resolve the global challenges is introducing the membrane-based desalination. Reverse Osmosis (RO) is a pressure driven membrane process which becoming increasingly popular and widely used for water purification applications that require high salt rejection such as brackish and seawater desalination. In this study, the influence of Sodium dodecyl sulphate (SDS) surfactant in producing the finest membrane for desalination were investigated in terms of performance, morphological structure and molecular orientation. From a polymer blending of polysulfone (PSF)/N-Methyl-2-Pyrrolidone (NMP)/polyvinylpyrrolidone (PVP)/sodium dodecyl sulphate (SDS) were formulated for making of low pressure reverse osmosis (LPRO) membrane. In order to examine the influence of SDS surfactant, different concentration from 0 wt% to 3 wt% were employed for desalination application of 10,000ppm (brackish water) and 50 000ppm (seawater). Experimental data showed that the increasing of 0.5wt% in surfactant produced higher pure water permeation (PWP) and flux. At 2.5wt% of SDS, the LPRO membranes showed the highest PWP of about 44.8L/m2h and brackish water flux at 45.58L/m2h. Meanwhile, at 3.0wt%, the highest flux of seawater at 39.37L/m2h was obtained. Moreover, the optimized LPRO (2wt% of SDS) membrane performed high rejection ratio of 90.9% for brackish water and 90.4% for seawater concentration of 10,000ppm and 50,000ppm, respectively. Therefore, the findings revealed that the fabricated LPRO membrane having a good potential to be used as eco-efficient desalination process of brackish water and seawater technology.

Separation of Organophosphorus Pesticides Using Micellar Electrokinetic Chromatography

2012 ◽  
Author(s):  
W. Aini W. Ibrahim ◽  
S. M. Monjurul Alam ◽  
Azli Sulaiman
Keyword(s):  
Key Words ◽  
Sodium Dodecyl Sulphate ◽  
Micellar Electrokinetic Chromatography ◽  
Organophosphorus Pesticides ◽  
Sodium Dodecyl ◽  
Borate Buffer ◽  
Electrokinetic Chromatography ◽  
Organic Modifier ◽  
Strong Peak ◽  
Sds Surfactant

Pemisahan enam pestisid organofosforus (mevinfos, metidation, diazinon, prefenofos, kuinalfos dan klorpirifos) telah dikaji menggunakan teknik kromatografi elektrokinetik misel (MEKC) dengan pengesan Ultralembayung–Nampak. Proses pemisahan dilakukan dengan menggunakan surfaktan anionik natrium dodesil sulfat (SDS) dan larutan penimbal borat atau fosfat sebagai elektrolit pembawa. Pemisahan yang dilakukan didapati tidak lengkap walaupun telah dilakukan perubahan terhadap pelbagai faktor seperti jenis larutan penimbal, kepekatan surfaktan dan larutan penimbal, penambahan pengubahsuai metanol dan juga pengubahsuaian pH larutan penimbal yang digunakan. Tanpa penggunaan dan pengubahsuaian faktor di atas, pestisid mevinfos sahaja selalu muncul sebagai puncak yang tajam diikuti oleh diazinon dan metidation. Walaupun tanpa kehadiran surfaktan SDS dalam matrik larutan penimbal, mevinfos dan diazinon dapat dikesan manakala pestisid OPPs yang lainnya tidak dapat dikesan. Penggunaan β–siklodekstrin (β–CD) 6 mM, penimbal borat 20 mM dengan SDS 40 mM dan pH penimbal 9.5 memberikan keputusan terbaik bagi pemisahan pestisid mevinfos, diazinon dan metidation. Keputusan dalam kajian ini mencerminkan kaitan antara keterlarutan dan sifat hidrofobik pestisid. Kata kunci: Pestisid organofosforus; kromatografi elektrokinetik misel; natrium dodesil sulfat; siklodekstrin; ultralembayung-Nampak Separation of six organophosphorus pesticides (mevinphos, methidathion, diazinon, profenofos, quinalphos and chlorpyrifos) has been investigated using micellar electrokinetic chromatography (MEKC) with on–column UV–Vis detection. Separations involved using anionic sodium dodecyl sulphate (SDS) surfactant and phosphate or borate buffer as carrier electrolytes. Separations have been found incomplete regardless of changing all sort of possible factors such as buffer types, buffer and surfactant concentrations, addition of organic modifier, methanol and pH of the running buffer. Irrespective of the combinations of levels of factors, mevinphos alone appeared always as a distinguishable strong peak followed by diazinon and methidathion. Even in the absence of any surfactant in buffer matrices, mevinphos and diazinon were detected but methidathion, profenofos, quinalphos and chlorpyrifos were undetected. The use of 6 mM β–cyclodextrin (β–CD), 20 mM borate buffer with 40 mM SDS and buffer pH of 9.5 resulted in the best separation of mevinphos, diazinon and methidathion. The results found in this study might reflect the solubility and hydrophobicity properties of the pesticides. Key words: Organophosphorus Pesticides (OPPs); Micellar electrokinetic chromatography; Sodium dodecy sulphate; cyclodextrin; UV-Vis

scholarly journals Synthesis of Magnetic Activated Carbon Treated with Sodium Dodecyl Sulphate

2021 ◽  
Vol 29 (1) ◽  
Author(s):  
Palsan Sannasi Abdullah ◽  
Huda Awang ◽  
Jayanthi Barasarathi
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Iron Powder ◽  
Sodium Dodecyl Sulphate ◽  
Magnetic Particles ◽  
Sodium Dodecyl ◽  
Chemical Properties ◽  
Performance Study ◽  
Methylene Blue Adsorption ◽  
Magnetic Activated Carbon

Magnetic activated carbon (MAC) is found to be effective for the adsorption of methylene blue due to its physico-chemical properties such as strong adsorption of magnetization. The use of activated carbon (AC) for methylene blue adsorption was ineffective compared to MAC. MAC was prepared by incorporating different types of iron powder and chemicals [sodium dodecyl sulphate (SDS), citric acid (CA), dimethicone (D350), and epichlorohydrin (C3H5ClO)] to strengthen the magnetism and stabilize the MAC. The methylene blue test and iodine test were tested on different samples. Characterization test on physical and chemical properties was carried out using Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD). The yield of MAC was higher because of the addition of magnetic particles. The incorporation of magnetic particles had been proven by the SEM and XRD analysis that showed the presence of iron compound. The performance study of the adsorbent sample showed that MAC_A3II presented better qualities with highest removal percentage (98.81 % of removal) in methylene blue adsorption and low magnetic contact time that showed strong magnetism. MAC_A3II was prepared by incorporating iron powder and treated by using sodium dodecyl sulphate (SDS). Among all the adsorbent sample, MAC_B2III performed the weakest quality because the dye removal percentage was low, and the preparation process was complicated compared with others.

Identifikasi Daging Tikus Pada Produk Baso Dengan Metode Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis (SDS-PAGE)

2018 ◽  
Vol 26 (2) ◽  
pp. 058
Author(s):  
Anna P. Roswiem ◽  
Triayu Septiani
Keyword(s):  
Sodium Dodecyl Sulphate ◽  
Gel Electrophoresis ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Polyacrylamide Gel ◽  
Sds Page

<em>Bahan<strong> </strong>baku untuk membuat baso adalah daging hewan, pada umumnya dari daging sapi, ayam, ikan dan babi. Di beberapa daerah di Indonesia terjadi kasus baso tikus. Tujuan penelitian ini adalah menguji ada tidaknya kandungan daging tikus pada produk baso yang dijual di pasar Cempaka Putih-Kecamatan Kramat Jakarta Pusat dan di pedagang baso atau mie baso di sekitar kampus Universitas YARSI Jakarta. Daging adalah protein salah satu metode untuk mengidentifikasi protein adalah metode Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis (SDS-PAGE).<strong> </strong>Hasil penelitian menunjukkan bahwa dari 6 sampel baso terindikasi ada 2 sampel baso dengan nomor 1 dan 5 yang dibuat dari campuran daging sapi dan tikus; ada 1 sampel baso dengan nomor 6 yang terbuat dari daging tikus; dan 2 sampel baso dengan nomor 2 dan 3 yang terbuat dari campuran sapi  dan babi, dan hanya 1 sampel baso dengan nomor sampel 4 yang benar-benar terbuat dari daging sapi.</em>

Ultrasound Effect on Molecules of Sodium Dodecyl Sulphate as Systems of Nanoparticles

2018 ◽  
Vol 10 (6) ◽  
pp. 06013-1-06013-5 ◽  
Author(s):  
I. G. Vorobiova ◽  
◽  
Yu. A. Mirgorod ◽  
A. S. Chekadanov ◽  
◽  
...  
Keyword(s):  
Sodium Dodecyl Sulphate ◽  
Sodium Dodecyl ◽  
Ultrasound Effect

scholarly journals Effect of Deposition Parameters on Electrochemical Properties of Polypyrrole-Graphene Oxide Films

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 624 ◽  
Author(s):  
Alina Iuliana Pruna ◽  
Nelly Ma. Rosas-Laverde ◽  
David Busquets Mataix
Keyword(s):  
Cyclic Voltammetry ◽  
Graphene Oxide ◽  
Electrochemical Properties ◽  
Sodium Dodecyl ◽  
Hybrid Coatings ◽  
Deposition Parameters ◽  
Structure Morphology ◽  
Energy Storage Applications ◽  
Improved Performance ◽  
Sds Surfactant

Graphene oxide (GO)-modified polypyrrole (PPy) coatings were obtained by electrochemical methods in the presence of the anionic surfactant, sodium dodecyl sulfate (SDS). The structure, morphology, and electrochemical properties of the coatings were assessed by Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM) and cyclic voltammetry at varying scan rates, respectively. The properties of the obtained coatings were analyzed with the GO and PPy loadings and electrodeposition mode. The hybrid coatings obtained galvanostatically showed a coarser appearance than those deposited by cyclic voltammetry CV mode and improved performance, respectively, which was further enhanced by GO and PPy loading. The capacitance enhancement can be attributed to the SDS surfactant that well dispersed the GO sheets, thus allowing the use of lower GO content for improved contribution, while the choice of suitable electrodeposition parameters is highly important for improving the applicability of GO-modified PPy coatings in energy storage applications.

Sign in / Sign up

Export Citation Format

Share Document