负载氢氧化铈超大孔阳离子交换树脂的吸附性能OA

Lipophilically modified inorganic powders were utilized as inorganic porogens and n-heptane as organic porogens to prepare supermacroporous cation exchange resins.Ce(OH)4 was subsequently loaded into the resin matrix through the functional groups and supermacroporous structure of the resins,and then a cation exchange resin loaded with Ce(OH)4 was prepared.The experimental results demonstrate that by using hydrogenated silicone oil as the modifier to modify the aluminum hydroxide powders,the hydrophilicity of the powders can be enhanced from 1.36%to 96.08%.After adding the modified aluminum hydroxide powders,the pore volume of the resin can reach 0.210 mL/g.The cation exchange resin loaded with Ce(OH)4 has a good adsorption effect on both anions and cations in wastewater and can achieve the simultaneous removal of nickel ions and vanadate ions from the wastewater.Under the conditions of a resin addition of 10 g/L,a solution pH of 7,and an adsorption time of 5 h,the removal rates of nickel ions and vanadate ions can both approach 100%.After five cycles of adsorption and recovery,the adsorption performance shows no significant decline.