卤氧化铋/纸浆纤维复合光催化纸的原位制备及甲醛去除效果研究  

In Situ Preparation of Bismuth Oxyhalide/Pulp Fibers Composite Photocatalytic Paper and Its Formaldehyde Removal Performance

作　　者：耿巍 钱学仁[1] 安显慧[1] GENG Wei;QIAN Xueren;AN Xianhui(Key Lab of Bio-based Materials Science and Technology of Ministry of Education,Northeast Forestry University,Harbin,Heilongjiang Province,150040)

机构地区：[1]东北林业大学生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨150040

出　　处：《中国造纸》2020年第3期1-7,共7页China Pulp & Paper

摘　　要：将卤氧化铋(BiOX,X=Cl、Br、I)原位沉积至纸浆纤维(PFs)上,制得BiOX/PFs复合光催化纸,并对其甲醛去除性能进行了评价。研究发现,在相同BiOX沉积率下,BiOI/PFs复合光催化纸的甲醛去除性能最佳,甲醛去除率为75%。与BiOCl/PFs复合光催化纸相比,BiOBr/PFs和BiOI/PFs复合光催化纸具有更优异的可见光催化性能,甲醛去除率分别为61%、74%和75%。采用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、X-射线光电子能谱仪(XPS)及电化学阻抗谱(EIS)等对BiOX/PFs复合光催化纸进行了表征,证明BiOX成功与PFs复合,最后对BiOX/PFs复合光催化纸的可见光降解甲醛机理进行了分析。Bismuth oxyhalide(BiOX,X=Cl,Br,I)was in situ deposited on pulp fibers(PFs),BiOX/PFs composite photocatalytic paper was prepared,and its formaldehyde removal performance was evaluated. The study found that BiOI/PFs composite paper had the best formaldehyde removal performance under the same BiOX deposition rate,and the formaldehyde removal rate reached 75%. Compared with BiOCl/PFs composite paper,BiOBr/PFs and BiOI/PFs composite papers had superior visible light photocatalytic performance,their formaldehyde removal rates were 61%,74% and 75% respectively. BiOX/PFs composite photocatalytic paper was characterized by means of scanning electron microscope(SEM),X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS)and electrochemical impedance spectroscopy(EIS). Characterization test results had proven that BiOX successfully composited with PFs. Finally,the photocatalytic mechanism of BiOX/PFs composite paper was discussed.

关 键 词：光催化纸 原位沉积 卤氧化铋 甲醛去除 

分 类 号：TS761.2[轻工技术与工程—制浆造纸工程]