Preparation of ultrafine Bi2WO6/ATP photocatalyst and its desulfurization performance
WU Feng-qin1, LV Xin-gang1, ZUO Shi-xiang1,2, LI Xia-zhang1,2, YAO Chao1,2
1. School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; 2. Changzhou Nano-materials S & T Co., Ltd., Changzhou 213164, China
Abstract: Ultrafine Bi2WO6/ATP composite photocatalyst is successfully synthesized by loading granular Bi2WO6 onto attapulgite (ATP) through solvothermal method and is applied to the oxidative desulfurization of model oil.The structure,morphology,optical properties and specific surface area of the prepared samples are characterized by XRD,TEM,UV-Vis and BET.It is found that Bi2WO6/ATP composite photocatalysts have wider range of light response,larger specific surface area than single phase Bi2WO6.A 96.12% of desulfurization rate can be achieved in 100 min over the catalyst within which the mass fraction of Bi2WO6 is 50%[m(Bi2WO6):m(ATP)].The desulfurization effect does not decrease obviously after 4 cycles and the performance of the catalyst remains stable.
吴凤芹, 吕新刚, 左士祥, 李霞章, 姚超. 超细钨酸铋/凹凸棒石光催化剂的制备及其脱硫性能[J]. 现代化工, 2018, 38(11): 72-76.
WU Feng-qin, LV Xin-gang, ZUO Shi-xiang, LI Xia-zhang, YAO Chao. Preparation of ultrafine Bi2WO6/ATP photocatalyst and its desulfurization performance. Modern Chemical Industry, 2018, 38(11): 72-76.
[1] Khin M M,Nair A S,Babu V J,et al.A review on nanomaterials for environmental remediation[J].Energy & Environmental Science,2012,5(8):8075-8109. [2] Shah M S A S,Zhang K,P ark A R,et al.Single-step solvothermal synthesis of mesoporous Ag-TiO2-reduced graphene oxide ternary composites with enhanced photocatalytic activity[J].Nanoscale,2013,5(11):5093-5101. [3] Fenech C,Rock L,Nolan K,et al.The potential for a suite of isotope and chemical markers to differentiate sources of nitrate contamination:A review[J].Water Research,2012,46(7):2023-2041. [4] Zhang L,Wang H,Chen Z,et al.Bi2WO6 micro/nano-structures:Synthesis,modifications and visible-light-driven photocatalytic applications[J].Applied Catalysis B:Environmental,2011,106(1):1-13. [5] He G H,He G L,Li A J,et al.Synthesis and visible light photocatalytic behavior of WO3(core)/Bi2WO6 (shell)[J].Journal of Molecular Catalysis A:Chemical,2014,385:106-111. [6] Deng F,Liu Y,Luo X,et al.Enhanced photocatalytic activity of Bi2WO6/TiO2 nanotube array composite under visible light irradiation[J].Separation and Purification Technology,2013,120:156-161. [7] Sun S,Wang W,Zhang L,et al.Bi2WO6/SiO2 photonic crystal film with high photocatalytic activity under visible light irradiation[J].Applied Catalysis B:Environmental,2012,125:144-148. [8] Yue L,Wang S,Shan G,et al.Novel MWNTs-Bi2WO6 composites with enhanced simulated solar photoactivity toward adsorbed and free tetracycline in water[J].Applied Catalysis B:Environmental,2015,176:11-19. [9] Yu C,Fang W,Zhu L,et al.Preparation,characterization and photocatalytic performance of heterostructured AgCl/Bi2WO6 microspheres[J].Chinese Journal of Catalysis,2015,36(7):987-993. [10] 姚超,刘敏,李为民,等.ATP/ZnO纳米复合材料的制备及其对亚甲基蓝吸附性能的影响[J].非金属矿,2009,32(3):57-60. [11] 方志成,姚超.TiO2/ATP纳米复合材料光催化降解甲基橙的动力学研究[J].非金属矿,2009,32(2):30-32. [12] Ge L,Han C,Liu J.Novel visible light-induced g-C3N4/Bi2WO6 composite photocatalysts for efficient degradation of methyl orange[J].Applied Catalysis B:Environmental,2011,108:100-107. [13] 陆晓旺,李霞章,陈志刚.CeO2/凹凸棒石复合材料的微波均相合成及其催化性能[J].中国有色金属学报,2014,24(12):3074-3081. [14] 孟英芹,赵晓兵,李霞章.sol-gel法制备CeO2-TiO2/凹凸棒石复合材料的催化性能[J].化工学报,2013,64(7):2679-2686. [15] Wang C,Zhu W,Xu Y,et al.Preparation of TiO2/g-C3N4 composites and their application in photocatalytic oxidative desulfurization[J].Ceramics International,2014,40(8):11627-11635. [16] Wang T,Xiao G,Li C,et al.One-step synthesis of a sulfur doped Bi2WO6/Bi2O3 composite with enhanced visible-light photocatalytic activity[J].Materials Letters,2015,138:81-84.