SORPTION BEHAVIOR AND MECHANISM OF THORIUM (IV) FROM NITRIC ACID SOLUTIONS BY RICE BRAN AND WHEAT BRAN

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BOVEIRI MONJI AKBAR; TAGHIZADEH MOHAMMAD; TORAB MOSTAEDI MISAM; SHAHMORADI GHASEM; MALLAH MOHAMMAD HASSAN; GHOULIPOUR VANIK

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Seminar Paper

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Seminar: SEMINAR OF CHEMISTRY AND ENVIRONMENT
Year:2015 | Issue:7

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Title

SORPTION BEHAVIOR AND MECHANISM OF THORIUM (IV) FROM NITRIC ACID SOLUTIONS BY RICE BRAN AND WHEAT BRAN

Author(s)

Keywords

FUNCTIONAL GROUPS

MECHANISM

SORPTION

THORIUM

Abstract

CURRENTLY IN THE INDUSTRY FOR PROCESSING AND REPROCESSING OF RADIONUCLIDES, DIFFERENT ACIDS WITH HIGH CONCENTRATION ARE REPEATEDLY APPLIED FOR DIGESTION OF RADIONUCLIDE-BEARING PRECIPITATION OBTAINED FROM LEACHING PROCESS. RADIONUCLIDES SEPARATION IS A CHALLENGING TASK BECAUSE OF HIGH ACIDIC MEDIA ASSOCIATED WITH IT (RAJU, AND SUBRAMANIAN, 2007). GIVEN THE INDUSTRIAL IMPORTANCE OF THORIUM SEPARATION FROM HIGHLY ACIDIC MEDIA, THE PRESENT WORK WAS UNDERTAKEN TO DECIPHER THE POSSIBLE MECHANISM AND CHEMICAL NATURE OF THORIUM ACCUMULATION FROM ACIDIC SOLUTIONS BY THE RICE BRAN AND WHEAT BRAN BIOMASS. THE MECHANISM OF RADIONUCLIDE–BIOMASS INTERACTION WAS ELUCIDATED BY EMPLOYING SEVERAL ANALYTICAL TECHNIQUES SUCH AS ATTENUATED TOTAL REFLECTANCE FOURIER TRANSFORM INFRARED SPECTROSCOPY (ATR-FTIR), SCANNING ELECTRON MICROSCOPE ANALYSIS (SEM) AND ENERGY DISPERSIVE X-RAY SPECTROSCOPY (EDS). THE PRESENCE OF TH4+IONS ON THE BIOMASS SURFACE WAS OBVIOUSLY REVEALED IN SEM IMAGES AND EDS ELEMENTAL ANALYSIS. MOREOVER, THE LINKAGE OF C=O, O-H AND N-H FUNCTIONAL GROUPS ON THE BIOMASS SURFACE WITH TH4+IONS BECAME CLEAR WITH ATR-FTIR SPECTROSCOPY. FROM ALL THE RESULTS OBTAINED, IT CAN BE DEDUCED THAT THE ELECTROSTATIC COMPLEXATION MECHANISM IS PREDOMINANT BETWEEN RB FUNCTIONAL GROUPS AND TH4+IONS. IT SEEMS THAT BIOMOLECULES SUCH AS AMINO ACIDS, B-VITAMINS, PHOSPHOLIPIDS AND ORYZANOLS CONTAINING HARD FUNCTIONAL GROUPS PLAY A SIGNIFICANT ROLE IN BIOSORPTION OF TH4+ IONS.

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APA: Copy

BOVEIRI MONJI, AKBAR, TAGHIZADEH, MOHAMMAD, TORAB MOSTAEDI, MISAM, SHAHMORADI, GHASEM, MALLAH, MOHAMMAD HASSAN, & GHOULIPOUR, VANIK. (2015). SORPTION BEHAVIOR AND MECHANISM OF THORIUM (IV) FROM NITRIC ACID SOLUTIONS BY RICE BRAN AND WHEAT BRAN. SEMINAR OF CHEMISTRY AND ENVIRONMENT. SID. https://sid.ir/paper/912855/en

Vancouver: Copy

BOVEIRI MONJI AKBAR, TAGHIZADEH MOHAMMAD, TORAB MOSTAEDI MISAM, SHAHMORADI GHASEM, MALLAH MOHAMMAD HASSAN, GHOULIPOUR VANIK. SORPTION BEHAVIOR AND MECHANISM OF THORIUM (IV) FROM NITRIC ACID SOLUTIONS BY RICE BRAN AND WHEAT BRAN. 2015. Available from: https://sid.ir/paper/912855/en

IEEE: Copy

AKBAR BOVEIRI MONJI, MOHAMMAD TAGHIZADEH, MISAM TORAB MOSTAEDI, GHASEM SHAHMORADI, MOHAMMAD HASSAN MALLAH, and VANIK GHOULIPOUR, “SORPTION BEHAVIOR AND MECHANISM OF THORIUM (IV) FROM NITRIC ACID SOLUTIONS BY RICE BRAN AND WHEAT BRAN,” presented at the SEMINAR OF CHEMISTRY AND ENVIRONMENT. 2015, [Online]. Available: https://sid.ir/paper/912855/en

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