四氯化硅液相鼓泡法制备纳米白炭黑工艺研究  

Study on preparation of silica nanoparticles by silicon tetrachloride with air blowing method

作　　者：赵云[1] 杨旭[1] 但建明[1] 乔秀文[1] 李洪玲[1] 洪成林[1] 

机构地区：[1]石河子大学化学化工学院/新疆生产建设兵团化工绿色过程重点实验室/省部共建国家重点实验室培育基地,新疆石河子832000

出　　处：《无机盐工业》2014年第8期28-32,共5页Inorganic Chemicals Industry

基　　金：兵团博士资金专项项目(2013BB009)

摘　　要：以多晶硅副产物四氯化硅为原料,氨水为中和剂,十二烷基苯磺酸钠为改性剂,在水-醇-氨体系中利用液相鼓泡法制备纳米白炭黑,并采用IR、XRD、SEM、TEM对纳米白炭黑晶体结构、形貌、分散性及粒径进行表征。研究了醇水比、氨水用量、分散剂种类及用量、双氧水加入量等因素对纳米白炭黑分散性及粒径的影响。纳米白炭黑最佳制备工艺条件:体系总体积为70 mL,V(水)∶V(醇)∶V(氨)=38∶15∶12,六偏磷酸钠加入量为1.5%(质量分数),双氧水用量为5 mL。IR、XRD表征结果表明产品为无定形二氧化硅;SEM、TEM表征结果表明纳米白炭黑粒径约100 nm且分散较好。The silica nanoparticles were prepared by air blowing method in a water-alcohol-ammonia solution with silicon tetrachloride,the by-product of polysilicon as the raw material,ammonia as neutralizer,and sodium dodecyl benzene sulfonate as modifier.The crystal structure,morphology,dispersion,and particle size of the product were characterized by Fourier transform infrared spectroscopy,X-ray diffraction,scanning electron microscopy,and transmission electron micoscope.The effects of ethanol/water ratios,ammonia dosage,dispersant species and dosage,H2O2 dosage,and other factors on the dispersion and particle size of silica nanoparticles were studied.The optimal synthesis conditions of silica nanoparticles were as follows： the total volume of mixed solution was 70 mL,the volume ratio of water/alcohol/ammonia was 38∶15∶12,the amount of SHMP was 1.5%（mass fraction）,and H2O2 dosage was 5 mL.IR and XRD spectra demonstrated that the product was amorphous silica; TEM and SEM demonstrated that the silica nanoparticle size was about 100 nm and well-dispersed.

关 键 词：四氯化硅 水-醇-氨体系 液相鼓泡 纳米白炭黑 

分 类 号：TQ127.11[化学工程—无机化工]