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Synthesis of MoS2/CdS Heterostructures on Carbon‐Fiber Cloth as Filter‐Membrane‐Shaped Photocatalyst for Purifying the Flowing Wastewater under Visible‐Light Illumination
ChemCatChem ( IF 3.8 ) Pub Date : 2019-05-20 , DOI: 10.1002/cctc.201900542
Yan Zhang 1, 2 , Li Luo 1 , Zhun Shi 1 , Xiaofeng Shen 1 , Cheng Peng 1, 2 , Jianshe Liu 1, 2 , Zhigang Chen 3 , Quanyuan Chen 1 , Lisha Zhang 1, 2
Affiliation  

The development of effective, visible‐light‐drivable and reusable photocatalysts has drawn great attention for purifying the flowing wastewater. Herein, we have designed and prepared MoS2/CdS heterostructures on carbon fiber (CF) cloth as a novel filter‐membrane‐shaped photocatalyst. With CF cloth as the substrate, the growth of MoS2 nanosheets (thickness: ∼20 nm) and CdS nanoparticles (∼5 nm) have been achieved by using a hydrothermal‐chemical bath deposition two‐step route. CF/MoS2/CdS cloth shows a strong and wide photoabsorption accompanied by a small peak with an edge around 700 nm. Under visible‐light irradiation, CF/MoS2/CdS cloth (area: 4×4 cm2) can expeditiously remove 97.3 % rhodamine B, 55.6 % tetracycline hydrochloride and 68.4 % hexavalent chromium after 100 min, and 97.3 % methylene blue after 70 min. In particular, when CF/MoS2/CdS cloth (diameter: ∼10 cm) is used as a filter‐membrane to photocatalytically degrade the flowing wastewater (10 mg L−1 RhB, rate: ∼1 L h−1), 92.6 % RhB can be eliminated in eight grading pools. Therefore, CF/MoS2/CdS cloth has the capacity to be a recyclable photocatalyst with high efficiency for purifying the flowing wastewater.

中文翻译:

碳纤维布上滤膜型光催化剂合成MoS2 / CdS异质结构在可见光照明下净化流动的废水

有效,可见光可驱动和可重复使用的光催化剂的开发引起了净化流动废水的极大关注。在这里,我们已经设计并制备了碳纤维(CF)布上的MoS 2 / CdS异质结构,作为一种新型的滤膜形光催化剂。以CF布为基材,通过水热化学浴沉积两步法实现了MoS 2纳米片(厚度:约20 nm)和CdS纳米颗粒(约5 nm)的生长。CF / MoS 2 / CdS布显示出强而宽的光吸收,并伴随着一个小峰,其边缘在700 nm附近。在可见光照射下,CF / MoS 2 / CdS布(面积:4×4 cm 2)在100分钟后可迅速去除97.3%罗丹明B,55.6%盐酸四环素和68.4%六价铬,在70分钟后可去除97.3%亚甲蓝。特别是,使用CF / MoS 2 / CdS布(直径:〜10 cm)作为滤膜,以光催化方式降解流动的废水(10 mg L -1 RhB,速率:〜1 L h -1)时,92.6可以在八个分级池中消除%RhB。因此,CF / MoS 2 / CdS布具有作为可回收的光催化剂的能力,能够高效地净化流动的废水。
更新日期:2019-05-20
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