Synthesis of nanocomposites from cationic polyacrylamide and modified carbon black: Application as flocculants for oily sludge suspension

In this paper, 1 ‐CB was synthesized by the sulfuric acid/potassium permanganate method, 1‐CB/CPAM was synthesized using a hydrothermal method. 1‐CB/CPAM flocculated oil sludge particles at different pH values, which exhibited excellent flocculation performance. Carbon black was modified using various liquid ‐phase oxidation methods (modified carbon black = m‐CB,m = (1, 2, 3): 1, sulfuric acid/potassium permanganate method; 2, nitric acid method; 3, hydrogen peroxide method). With acetone–ethylene glycol as initiator, dimethyldiallylammonium chloride (DMDAAC) and acrylamide (AM) as monomer, cationic polyacrylamide (CPAM) was prepared by UV excitation of the monomer. Them‐CB/CPAM nanocomposites were synthesized using a hydrothermal method. The factors that affected the molecular weight of CPAM were investigated, including the total monomer concentration, the dosage of the complex initiator, the mass ratio ofmAM:mDMDAAC and the UV irradiation time. The chemical structures and morphologies of the samples were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, elemental composition, X ‐ray diffraction and scanning electron microscopy. 1‐CB/CPAM was utilized to flocculate oil sludge suspension, and the effects of 1‐CB quality, 1‐CB/CPAM dosage, temperature and pH value on the flocculation performance of 1‐CB/CPAM were investigated. The flocculation mechanism of 1‐CB/CP AM was also analyzed. The results show that 1...
Source: Applied Organometallic Chemistry - Category: Chemistry Authors: Tags: FULL PAPER Source Type: research