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Facile One-Step Preparation and Efficient Photocatalytic Hydrogen Production of Composite MoS2/g-C3N4 Sensitized by Erythrosin B
Nano ( IF 1.0 ) Pub Date : 2020-08-07 , DOI: 10.1142/s1793292020501271
Mingcai Yin 1 , Yixian Li 1 , Kaiyue Liang 1 , Jiangfan Sun 1 , Yaoting Fan 1 , Zhongjun Li 1
Affiliation  

MoS2/g-C3N4 (g-C3N4 [Formula: see text] graphitic carbon nitride) composite is considered as a promising photocatalyst for hydrogen production, while the preparation method still needs to be improved. Herein for the first time, nanosized MoS3 and melamine were used as starting materials and a facile one-pot calcination method was successfully applied for the synthesis of MoS2/g-C3N4. The physical and photophysical properties of the as-prepared MoS2/g-C3N4 were characterized by XRD, IR, SEM, TEM and XPS techniques. Sensitized by Erythrosin B (EB), the photocatalytic hydrogen production performance of MoS2/g-C3N4 was investigated and the amount of MoS2 was optimized. An excellent H2 production activity of 1091.2[Formula: see text][Formula: see text] was achieved for 43% MoS2/g-C3N4, which is about 330 times that of pure g-C3N4 (3.3[Formula: see text][Formula: see text]. In addition, its performance was compared with those of three other MoS2/g-C3N4 samples prepared by conventional methods and a possible mechanism of H2 production was proposed based on the photoluminescence and photoelectrochemical results.

中文翻译:

赤藓红B敏化复合MoS2/g-C3N4的简便一步制备及高效光催化制氢

二硫化钼2/GC3ñ4(GC3ñ4【分子式:见正文】石墨氮化碳)复合材料被认为是一种很有前景的制氢光催化剂,但制备方法仍有待改进。这是第一次,纳米二硫化钼3以三聚氰胺和三聚氰胺为起始原料,成功应用简便的一锅煅烧法合成二硫化钼2/GC3ñ4. 所制备的 MoS 的物理和光物理性质2/GC3ñ4采用 XRD、IR、SEM、TEM 和 XPS 技术对其进行了表征。赤藓红 B (EB) 敏化 MoS2 的光催化制氢性能2/GC3ñ4进行了调查和 MoS 的量2进行了优化。优秀的H21091.2[公式:见正文][公式:见正文]的生产活动达到 43% MoS22/GC3ñ4,约为纯 gC 的 330 倍3ñ4(3.3[公式:见正文][公式:见正文]。此外,将其性能与其他三种MoS进行了比较2/GC3ñ4常规方法制备的样品和 H 的可能机制2基于光致发光和光电化学结果提出了生产。
更新日期:2020-08-07
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