采用EDTA对煤矸石粉进行了表面改性,然后以表面改性煤矸石粉、乙酸镉和硫代乙酰胺为原料,采用超声化学法制备了CdS/煤矸石复合粉体.采用X射线粉末衍射(XRD)、高分辨透射电子显微镜(HRTEM)、扫描电子显微镜(SEM)以及所带能谱仪(EDS)对所制得的样品进行了表征,并以紫外光为光源,甲基橙为目标降解物,对其光催化活性进行了研究.结果表明:煤矸石表面有许多直径100 nm左右絮状球形立方相CdS小颗粒包覆着;CdS/煤矸石复合粉体表现出较高的光催化降解能力,在60W紫外灯辐照下,CdS/煤矸石的复合粉体重复利用3次后,处理3h对甲基橙的降解率仍可达92.8％.
参考文献
| [1] | 曹莹,白雪峰.负载型纳米CdS制备及催化分解水制氢的研究进展[J].影像科学与光化学,2009(03):225-232. |
| [2] | 胡宝云,黄剑锋,张海,张钦峰,曹丽云,吴建鹏.微波水热法制备CdS微晶球及S/CdS核壳结构[J].硅酸盐通报,2010(05):1119-1122,1132. |
| [3] | Xuewen Wang;Gang Liu;Gao Qing Lu;Hui-Ming Cheng .Stable photocatalytic hydrogen evolution from water over ZnO-CdS core-shell nanorods[J].International journal of hydrogen energy,2010(15):8199-8205. |
| [4] | Shangguan WF.;Yoshida A. .Synthesis and photocatalytic properties of CdS-intercalated metal oxides[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2001(2):189-194. |
| [5] | Xiaoxia Zhou;Hangrong Chen;Yuanyuan Sun.Highly efficient light-induced hydrogen evolution from a stable Pt/CdS NPs-co-loaded hierarchically porous zeolite beta[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2014:271-279. |
| [6] | 段锋,马爱琼,肖国庆,尹洪峰.煤矸石在高温材料中的应用研究进展[J].硅酸盐通报,2013(09):1811-1816. |
| [7] | 李小俊,胡克良,黄允兰,周贵恩.红外光谱对碱土金属二元羧酸盐结构的研究[J].光谱学与光谱分析,2002(03):392-395. |
| [8] | Gonu Kim;Wonyong Choi .Charge-transfer surface complex of EDTA-TiO2 and its effect on photocatalysis under visible light[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2010(1/2):77-83. |
| [9] | 回瑞华,关崇新,侯冬岩.羧酸及其盐红外光谱特性的研究[J].鞍山师范学院学报,2001(01):95-98. |
| [10] | Huang, J.;Ye, M.;Qu, Y.;Chu, L.;Chen, R.;He, Q.;Xu, D..Pb (II) removal from aqueous media by EDTA-modified mesoporous silica SBA-15[J].Journal of Colloid and Interface Science,2012:137-146. |
| [11] | 朱俊杰.超声化学法合成金属硫族半导体纳米材料[J].微纳电子技术,2002(12):21-27. |
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