121-65-3Relevant articles and documents
Petroleum waste as raw materials for production of electricity by Photogalvanic solar cell
Bendary, Samar H.,El-Tabei, A. S.,Mahmoud, Sawsan A.
, (2021)
Petroleum industry produces a bulky rate of harmful environmental wastes. Recycling of these wastes to produce added value products is of prim importance. In this work, Synthesis of sodium 4-dodecyl benzene sulfonate (SDBS) anionic surfactant from petroleum waste was done through two steps method. The composition of the produced anionic surfactant was investigated by using FTIR, 1HNMR, and 13CNMR spectra techniques. Anionic surfactant was applied in photogalvanic cell (PGC) for production of electricity. PGC can be described as an electrochemical cell where the change in both voltage and current arises from the generated photochemical changes in the reactants during the oxidation–reduction reaction in the cell. the recorded electrical cell performance are; maximum power (PPP) 39.8μW, short circuit current (iSC)145.2 μA, open circuit potential (VOC) 490 mV, fill factor (FF) 0.65, conversion efficiency (η) 0.77%, and storage capacity t0.565 min for system containing Tris (2,2′-bipyrdyl) Ruthenium (II) chloride hexahydrate (TBRC) as photosensitize, Oxalic acid (OX) as reductant, and (SDBS) as anionic surfactant under artificial illumination. The cell performance is optimized and the preliminary mechanism for the solar energy conversion in PGC is also proposed.
PROPRIETES PHYSICI-CHIMIQUES DE N-ALKYL P-BENZENE SULFONATES ALCALINS: TEMPERATURE DE KRAFFT ET CONCENTRATION CRITIQUE MICELLAIRE
Rouviere, Jacques,Faucompre, Bernard,Lindheimer, Marc,Partyka, Stanislas,Brun, Bernard
, p. 309 - 314 (2007/10/02)
The Krafft points (Tk) and the critical micellar concentrations (c.m.c.) on the alkali salts of n-alkyl-p-benzene sulfonates have been measured by solubility and conductivity experiments.For the sodium compounds, we observe a linear relationship between log10cmc and n the number of carbon atoms in the alkyl chain of the surfactant, a linear relationship between the Tk of the homologous surfactants studied and n.The substitution of sodium counter-ion by another alkali, decreases the Krafft point which seems to be correlated to the hydratation of the counter-ion.These data permit us to know the Tk and c.m.c. of homologous series of various amphiphiles.By treating the formation of micelles as analogous to phase separation, the determination of the variation of c.m.c. with temperature has been studied, these results have been converted into, enthalpy and free energy of micellization and these have been compared with corresponding values obtained from literature data.
