Biomolecule-Assisted, Environmentally Friendly, One-Pot Synthesis of CuS/Reduced Graphene Oxide Nanocomposites with Enhanced Photocatalytic Performance

详细信息    查看全文

• 作者：Yingwei Zhang ; Jingqi Tian ; Haiyan Li ; Lei Wang ; Xiaoyun Qin ; Abdullah M. Asiri ; Abdulrahman O. Al-Youbi ; Xuping Sun
• 刊名：Langmuir
• 出版年：2012
• 出版时间：September 4, 2012
• 年：2012
• 卷：28
• 期：35
• 页码：12893-12900
• 全文大小：448K
• 年卷期：v.28,no.35(September 4, 2012)
• ISSN：1520-5827

文摘

In this work, we develop a novel environmentally friendly strategy toward one-pot synthesis of CuS nanoparticle-decorated reduced graphene oxide (CuS/rGO) nanocomposites with the use of l-cysteine, an amino acid, as a reducing agent, sulfur donor, and linker to anchor CuS nanoparticles onto the surface of rGO sheets. Upon visible light illumination (位 > 400 nm), the CuS/rGO nanocomposites show pronounced enhanced photocurrent response and improved photocatalytic activity in the degradation of methylene blue (MB) compared to pure CuS. This could be attributed to the efficient charge transport of rGO sheets and hence reduced recombination rate of excited carriers.