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Online since: January 2022
Authors: Miftakhul Fakhrurozi, Muhammad Harris Hafidhuddin, Umi Rofiqah
Antioxidant Flavonoids : Structure , Function and Clinical Usage. 2002
Food Chemistry, 2012. 135(3): p. 976-984
Online since: April 2021
Authors: Wahyu Fajar Winata, Ika Yanti, Rinaldi Rinaldi, Tiara Yulianti, Febri Juita Anggraini, Yasdi Yasdi
Bentonite-Biochar Combination for Manganese Ion Removal from Water YASDI Yasdi1*, RINALDI Rinaldi1, WAHYU Fajar Winata2,*, FEBRI Juita Anggraini1, IKA Yanti3* and TIARA Yulianti1 1Environmental Engineering Study Program, Faculty of Engineering, Jambi University, Indonesia. 2Teknologi Pengolahan Kulit, Politeknik ATK Yogyakarta, Indonesia. 3Department of Chemistry, Universitas Islam Indonesia, Yogyakarta, Indonesia.
The presence of this group enriches the content of the carbon structure on the surface of the biochars.
Online since: March 2017
Authors: Saptono Hadi, Müfit Bahadir
Development of Brominated Flame Retardants (BFRs) Analysis with Liquid Chromatography-Tandem Mass Spectrometry (LC/MS/MS) in Sewage Sludge Matrix Saptono Hadi1,a and Müfit Bahadir2 1Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Indonesia 2Institute of Environmental and Sustainable Chemistry, TU Braunschweig, Germany asaptono.hadi@staff.uns.ac.id Keywords: Brominated flame retardants (BFRs), sewage sludge, liquid chromatography tandem mass spectrometry (LC-MS/MS) Abstract.
Structure and physicochemical properties of the selected BFRs Chemical name Acronyms MW [g/mol] MP [°C] Sw [mg/L] Tetrabromobisphenol A TBBPA 543.91 181-182 4160 Hexabromocyclododecane HBCD 641.73 ~190 66 Decabromodiphenyl ether BDE-209 959.17 300-310 30 Decabromodiphenyl ethane deBDethane 971.27 348-353 0.72 MW = molecular weight; MP = melting point; Sw = solubility in water (25°C) Sample preparation.
Online since: March 2017
Authors: Junaidah Jai, Fazlena Hamzah, Noorsuhana Mohd Yusof, M.H. Ahmad
Edible films and coatings: Structures, active functions and trends in their use.
In: Advances in Chemistry Series.
Online since: April 2013
Authors: Ai Hua Tian, Dong Hui Shen
The FTIR spectra of SDS, SDS/Pt composites and SDS/Pd composites were measured using a Nicolet IR 860 spectrometer (Thermo Nicolet, Madison, WI, USA) operating in the wavenumber range from 4000 to 500cm-1 to characterize the chemical structure of catalytic materials.
,Journal of Electroanalytical Chemistry, 2002, vol.532(1-2), p. 75
Online since: January 2016
Authors: N.A.M. Nor, Mohd Hafiz Dzarfan Othman, Juhana Jaafar, Woei Jye Lau, Norhaniza Yusof, W.N.W. Salleh, Mukhlis Abdul Rahman
Salam, Influence of calcination temperature on the structure and porosity of nanocrystalline SnO2 synthesized by a conventional precipitation method, Int.
Vaquez, Thermal stability and structural deformation of rutile SnO2 nanoparticles, Journal of Solid state chemistry, 174 (2003) 241-248
Online since: August 2015
Authors: Paweena Prapainainar, Napha Sudachom, Chompunuch Warakulwit
The Effect of Ternary Catalyst Atomic Ratios (PtRuSn/C and PtRuNi/C) on Ethanol Electrooxidation for Direct Ethanol Fuel Cell Napha Sudachom1, 2, a, Chompunuch Warakulwit3, 4, b and Paweena Parpainainar1, 2, 3, c * 1Department of Chemical Engineering, Faculty of Engineering, 2National Center of Excellence for Petroleum, Petrochemicals and Advance Material, 3Center for Advanced Studies in Nanotechnology, Applications in Chemical Food and Agricultural Industries, 4Physical chemistry Department, Kasetsart University, 50 Ngawongwan Road, Ladyao, Jatujak, Bangkok, 10900 Thailand ag5514500675@ku.ac.th, bfscicpn@ku.ac.th, c*fengpwn@ku.ac.th Keywords: Ternary catalyst, Electrooxidation reaction, Atomic ratios, Direct ethanol fuel cell.
Measurement of physical properties The crystalline structure of the catalysts were characterized by BRUKER Advance A25 X-ray diffraction (XRD), using the Cu-Kα radiation source at 40 kV and 40 mA.
Online since: October 2022
Authors: Radomír Sokolař, Martin Nguyen, Tomáš Opravil, Martin Sedlačík
Foam Glass Preparation from Waste Diatomite: Assessment of High Temperature Behaviour and Foaming Ability SEDLAČÍK Martin1,a*, NGUYEN Martin2,b, OPRAVIL Tomáš1,c, SOKOLÁŘ Radomír1,d 1Brno University of Technology, Faculty of Chemistry, Institute of material science Purkyňova 118, 612 00 Brno, Czech Republic 2Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 331/95, 602 00 Brno, Czech Republic axcsedlacik@vutbr.cz, bnguyen.m@fce.vutbr.cz, csokolar.r@fce.vutbr.cz, dopravil@fch.vut.cz Keywords: Diatomaceous earth, Foam glass, heating microscopy, thermal analysis.
Small peak 619 °C is most likely related to the dehydroxylation of silanol groups in the opal structure of diatomite.
Online since: August 2023
Authors: Abdulkareem Dahash Affat, Luay Badr Hamad, Marwa F. Abdul Jabbar
The SEM image clearly demonstrates that the catalyst particles have fibrous morphology, where CaO has an agglomerate of rod-like regular structure and the sawdust has fibrous morphology with lengths ranging from a few hundred nanometers to a few micrometers.
Chemistry Research 8(2) (2019) 170-178
Online since: March 2012
Authors: Polphat Ruamcharoen, Chor Wayakron Phetphaisit, Jareerat Ruamcharoen, Ratree Bumee, Bussara Niyomdecha, Supattra Nillawat
The Chemical Modification of Waste PET and its Application for a Wood-polymer Composite Binder Polphat Ruamcharoen1,a, Chor Wayakron Phetphaisit2,b, Ratree Bumee2 Jareerat Ruamcharoen3,c, Bussara Niyomdecha1, Supattra Nillawat1 1Rubber and Polymer Technology Program, Faculty of Science and Technology, Songkhla Rajabhat University, Songkhla, 90000, Thailand 2Department of Chemistry, Faculty of Science, Naresuan University, Pitsnulok, 65000, Thailand 3Department of Science, Faculty of Science and Technology, Prince of Songkla University, Pattani, 94000, Thailand apolphat@scimail.skru.ac.th, bchorwayakronp@nu.ac.th, csjareera@bunga.pn.psu.ac.th Keywords: glycolysis, hydroxyl terminated PET, binder, wood-polymer composites Abstract The application of hydroxyl terminated polyethylene terephthalate (PET-OH) as a starting pre-polymer to react with polymeric methylene di-isocyanate (p-MDI) for synthesis of polyurethane as a wood-composite binder was studied.
It is well known that the main structure of wood is cellulose which comprises a lot of hydroxyl groups and they are particularly interesting in polyurethane synthesis, as the hydroxyl groups of the cellulose can react with isocyanate group.