锌铝系盐处理剂对钛白表面性质的影响研究  

Study on the effect of zinc or aluminium salt treatments on the surface properties of TiO_(2)

作　　者：尚雨婷 刘婵 路瑞芳[2] 杨芳 冯玉军[1] 殷鸿尧 SHANG Yuting;LIU Chan;LU Ruifang;YANG Fang;FENG Yujun;YIN Hongyao(Polymer Research Institute,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610000,Sichuan,China;State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Research Institute Co.,Ltd.,Panzhihua 617000,Sichuan,China)

机构地区：[1]四川大学高分子研究所,高分子材料工程国家重点实验室,四川成都610000 [2]攀钢集团研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花617000

出　　处：《钢铁钒钛》2025年第1期34-39,共6页Iron Steel Vanadium Titanium

摘　　要：硫酸法钛白生产工艺中,盐处理剂的选择对金红石二氧化钛晶体的表面性质有着重大影响,有必要对不同盐处理剂造成的钛白粉表面性质差异进行深入研究,揭示不同盐处理剂所引发的表面性质差异。采用SEM、XPS、BET等仪器分别研究了锌系盐处理和铝系盐处理的金红石样品的表面形貌、晶体表面缺陷、表面羟基的差异。结果表明:铝系盐处理的金红石样品呈现长条形,在沉降过程中受更大的沉降阻力,且铝系盐处理金红石样品表面存在更多的晶体缺陷、表面羟基,同时对水分子的解离作用更明显,在水分散体系有更高的表面电位,更容易形成更稳定的分散体系。In the production process of titanium dioxide by sulfuric acid method,the selection of salt treatment agents has a significant impact on the surface properties of rutile titanium dioxide crystals.Thus it is necessary to carry out an in-depth study to reveal the differences in the surface properties of titanium dioxide caused by different salt treating agents.In this study,the differences in surface morphology,crystal surface defects,and surface hydroxyl groups of rutile samples treated with zinc-based salt and aluminium-based salt were investigated using SEM,XPS,and BET instruments,respectively.The results show that the aluminium salt-treated rutile samples present elongated shape and suffer from greater sedimentation resistance during the sedimentation process.Meanwhile,the aluminium salttreated rutile samples have more crystal defects and surface hydroxyls on the surface than the zinc salttreated samples,and also have more pronounced dissociative effects on water molecules,higher surface potential in the water-dispersed system,and are more capable of forming more stable dispersed systems.

关 键 词：二氧化钛 锌铝系盐处理剂 氧空位 表面羟基 

分 类 号：TF044[冶金工程—冶金物理化学] TF823