含磷聚苯并噁嗪树脂对水中铁(Ⅲ)和铬(Ⅵ)的吸附性能研究  

Adsorption Performance of Phosphorus-containing Polybenzoxazine Resin to Iron(Ⅲ) and Chromium(Ⅵ) in Water

作　　者：谷铭瑞 花胜权 崔振楠 李金文 谭志伟 GU Mingrui;HUA Shengquan;CUI Zhennan;LI Jinwen;TAN Zhiwei(School of Chemistry and Environmental Engineering,Hubei Minzu University,Enshi 445000,China)

机构地区：[1]湖北民族大学化学与环境工程学院,湖北恩施445000

出　　处：《化学与生物工程》2023年第2期30-36,共7页Chemistry & Bioengineering

基　　金：国家自然科学基金地区基金项目(21564003,52162013)。

摘　　要：以四羟甲基硫酸鏻(THPS)为起始原料,合成了二官能团含磷苯并噁嗪单体二(3,4-二氢-1,3-苯并噁嗪-3-亚甲基)苄基氧化膦(BBOz),再采用无溶剂直接加热开环聚合法合成了含磷聚苯并噁嗪树脂(PBBOz),通过差示扫描量热法(DSC)、热重法(TG)和BET法对树脂PBBOz的性能进行了分析,并对其吸附机制进行了探究。结果表明,树脂PBBOz具有较好的热稳定性和阻燃性;树脂PBBOz对铁(Ⅲ)、铬(Ⅵ)均有一定的吸附能力,主要源于结构中的酚羟基和叔胺基,其吸附机理主要为化学吸附;树脂PBBOz经硝酸处理再生后可重复使用。Taking tetrakis hydroxymethyl phosphonium sulfate(THPS) as a starting material, we synthesized phosphorus-containing benzoxazine monomer bis(3,4-dihydro-2H-1,3-benzoxazin-3-yl-methyl)benzyl phosphine oxide(BBOz).Then, we synthesized phosphorus-containing polybenzoxazine resin(PBBOz) by a solvent-free direct heating ring-opening polymerization method.Moreover, we analyzed the properties of PBBOz by DSC,TG,and BET,and explored the adsorption mechanism of PBBOz.The results show that the resin PBBOz has good thermal stability and flame retardancy.The resin PBBOz has certain adsorption capacity to iron(Ⅲ) and chromium(Ⅵ),mainly because of the phenolic hydroxyl group and tertiary amine group in the structure, and the adsorption mechanism is mainly chemical adsorption.The resin PBBOz can be reused after treatment with nitric acid.

关 键 词：含磷聚苯并噁嗪 吸附 铁(Ⅲ) 铬(Ⅵ) 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业] X522[环境科学与工程—环境工程]