节点文献

BiVO₄光催化剂的合成及其用于模拟汽油氧化脱硫的研究

Preparation of BiVO₄ Photocatalyst and Its Performance in the Oxidative Desulfurization of Modeling Gasoline

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 Wu Yufei~1,Gao Xiaoming~(1,2),Fu Feng~1,Niu Fengxing~1,Wang Jiwu~1,Li Wenhong~2 (1.College of Chemistry and Chemical Engineering,Shanxi Key Laboratory of Chemical Reaction Engineering,Yan’an University, Yan’an 716000,China;2.College of Chemical Engineering.Northwest University,Xi’an 710069,China)

【机构】延安大学化学与化工学院陕西省化学反应工程重点实验室；西北大学化工学院；

【摘要】以Bi（NO₃）₃·5H₂O和NaVO₃·2H₂O为原料,用水热法合成了可见光催化剂BiVO₄,对其进行X射线衍射（XRD）和紫外-可见漫反射光谱（UV-visDRS）表征,并在玻璃管式反应器中用BiVO₄光催化氧化处理模拟汽油。以模拟汽油中硫含量为参考目标,研究了水热合成时间、温度、催化剂的用量、光源、光照时间等对光催化脱硫效果的影响。结果表明,当水热反应2.0h合成的BiVO₄催化剂用量1mg/mL,氧化剂（过氧化氢）的体积分数10%,反应温度为160℃,400W金卤灯光照2.0h条件下,模拟汽油的脱硫率可达到95%以上。更多还原

【Abstract】 The visible light catalyst BiVO₄ was prepared from Bi（NO₃）3·5H₂O and NaVO₃·2H₂O by hydrothermal method and was characterized by X ray diffraction（XRD）and ultraviolet-visible light diffuse reflection spectrum （UV-vis DRS）.The modeling gasoline was treated on catalyst BiVO₄ by photocatalytic oxidation.The affecting factors on photocatalytic oxidative desulfurization ratio of the modeling gasoline were investigated.The results showed that the desulfurization ratio was up to 95%when the dosage of catalyst synthesized at temperature 160℃and hydrothemal time 2.0 h was 1 mg/mL,the volume fraction of oxidant H₂O₂ was 10%and the 400 W metal halide lamp irradiation time was 120 min.更多还原