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- Title
A novel biomolecule-assisted synthesis of CuS-anchored 3DOM-TiO<sub>2</sub> for stable and enhanced photocatalysis activity.
- Authors
Liang, Xuan; Xue, Suting; Wu, Wangchen; Feng, Qin; Zheng, Xudong; Zhang, Yakang; Xu, Song; Zhou, Man; Li, Zhongyu
- Abstract
Herein, a series of CuS particles anchored three-dimensional ordered macroporous TiO2 (CuS/3DOM-TiO2) composites were fabricated by a biocompatible and environmental-friendly biomolecule-assisted route. For the first time in the macroporous 3DOM-TiO2, L-cysteine acted as multiple roles including sulfur source and chelating agent for anchoring of CuS particles. During the regulation by Cu/Ti molar ratios from 0.3 to 2, the average size of CuS particle which anchored on inner surface of 3DOM-TiO2 was well-controlled from about 50 to 20 nm. The photocatalytic activities were investigated by visible-light degradation of methylene blue (MB). The highest activity of CuS/3DOM-TiO2 was emerged when Cu/Ti equaled to 1. This optimized CuS/3DOM-TiO2-1 reached 99% in 180 min, which was 60% higher than that of pure TiO2. After four cycles, the photocatalytic activity of CuS/3DOM-TiO2 retains more than 80% of its original performance. L-cysteine highly promoted the adhesion between CuS and TiO2 which provided good cycling ability.
- Subjects
PHOTOCATALYSIS; MACROPOROUS polymers; PHOTOCATALYSTS; CHELATING agents; METHYLENE blue; CYSTEINE
- Publication
Journal of Materials Science: Materials in Electronics, 2023, Vol 34, Issue 1, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-022-09430-z