Reduced graphene oxide/CdS for efficiently photocatalystic degradation of methylene blue
Reduced graphene oxide/CdS for efficiently photocatalystic degradation of methylene blue
复制标题
还原氧化石墨烯/CdS可有效光催化降解亚甲基蓝
DOI：
10.1016/j.jallcom.2012.02.058
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发表时间：
2012-05
影响因子：
6.2
通讯作者：
Liu, Yichun
中科院分区：
文献类型：
--
作者：
Wang, Xinwei;Tian, Hongwei;Yang, Yan;Wang, Huan;Wang, Shumin;Zheng, Weitao;Liu, Yichun
采用一步溶剂热法合成了还原氧化石墨烯/硫化镉（RGO/CdS）杂化材料，其中氧化石墨烯（GO）为支撑材料，CdS纳米颗粒均匀分布在其上，醋酸镉（Cd(Ac)2·2H2O）为CdS前驱体。采用RGO作为载体材料，有效地提高了CdS纳米颗粒光催化降解水溶液中亚甲基蓝的活性。在可见光（VL）照射下，氧化石墨烯与CdS的最佳质量比为5.0%，具有优异的光降解效率（94%）和更好的总有机碳（TOC）去除率（57%），分别是纯CdS纳米颗粒的2.5倍和5.1倍。由于引入了二维RGO网络，提高了亚甲基蓝分子的吸附性、位于可见光区的光吸收水平、高电荷转移和分离能力，从而提高了光降解效率。
Reduced graphene oxide/cadmium sulfide (RGO/CdS) hybrid material was synthesized by a one-step solvothermal method, wherein graphene oxide (GO) was a supporting material on which CdS nanoparticles were distributed homogeneously, and cadmium acetate (Cd(Ac)2·2H2O) was used as the CdS precursor. The supporting material RGO for CdS nanoparticles effectively enhanced their photocatalytic activities for the photodegradation of methylene blue in the aqueous solution. The optimum weight ratio of the GO to CdS in the hybrid material was 5.0%, which exhibited an excellent photodegradation efficiency (94%) and a better removal efficiency of total organic carbon (TOC) (57%), about 2.5 times and 5.1 times higher than that of pure CdS nanoparticles, respectively, under visible light (VL) irradiation. This improved photodegradation efficiency could be attributed to the increased adsorbability for methylene blue molecules, light absorption levels located in visible region, high charge transfer and separation ability, due to the introduction of a two-dimensional RGO network.
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DOI：
--
发表时间：
2010
期刊：
--
影响因子：
--
作者：
L. A. Silva;S. Ryu;J. Choi;W. Choi;M. R. Hoffmann
通讯作者：
L. A. Silva;S. Ryu;J. Choi;W. Choi;M. R. Hoffmann
影响因子：
7.3
作者：
Yan, Hongjian;Yang, Jinhui;Li, Can
通讯作者：
Li, Can
影响因子：
3.7
作者：
Ji, Kyung Hwan;Jang, Dong Myung;Park, Jeunghee
通讯作者：
Park, Jeunghee
牺牲模板法合成CdS纳米海绵及其光催化性能
影响因子：
6.2
作者：
Wang, Qun;Chen, Gang;Wang, Lin
通讯作者：
Wang, Lin
多壁碳纳米管（MWCNTs）/CdS纳米复合材料的水热制备及其可见光照射下高效光催化制氢
影响因子：
5.3
作者：
Peng, Tianyou;Zeng, Peng;Zhang, Xiaohu
通讯作者：
Zhang, Xiaohu