期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 381, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2019.120955
关键词
BiPO4/Bi2S3 heterostructures; Photocatalyst; Cr(VI) reduction; Visible light
For the first time, a novel BiPO4/Bi2S3 heterostructures with different morphologies have been fabricated through a facile and rapid one pot precipitation route followed by anion-exchange strategy for the photoreduction of toxic Cr(VI) to harmless Cr (III). The hybrid structures systematically investigated using XRD, FESEM, EDS, TEM, HRTEM, XPS, FT-IR, UV vis DRS, and PL. Changing the solvent type has a significant role for controllable morphologies of BiPO4/Bi2S3 hybrid as well as the catalytic activity. The BiPO4/Bi2S3 hybrid synthesized in diethylene glycol (DEG) performed the highest reduction efficiency of Cr(VI) within 20 min, compared with pure hexagonal phase of BiPO4 under visible light. The rate constant for BiPO4/Bi2S3 synthesized in scavenger could enhance the Cr(VI) reduction efficiency to 97.9%. No significant decrease in the catalytic efficiency after recycling up to four cycles. This promising study could present a significant approach towards Cr (VI) phetoreduetion from water through the novel BiPO4/Bi2S3 photocatalyst.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据