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Near-infrared-dominated photothermal nanofluids for degradation and H2-producing photochemical reforming of fiber-based microplastics.
- Source :
-
Ceramics International . Aug2023, Vol. 49 Issue 15, p24730-24743. 14p. - Publication Year :
- 2023
-
Abstract
- One effective strategy to solve the existing limits of photocatalyst applications is to broaden the spectrum absorption range of catalysts for the degradation and conversion of microplastics. As a result, a brand-new composite system BN/PDA/MoS 2 (BPM) was developed in this work to form nanofluids for the degradation and reformation of fiber-based microplastics (FMPs) under the irradiation of near-infrared light (NIR) for the first time. The collaborative system BPM nanofluids/NIR could remove 94.7% and 95.2% of reactive blue KN-R (100 mg/L) and Cr (VI) (10 mg/L) within 60 min, along with the temperature of the system could reach 58°C within 30 min. The weight loss rates of FMPs like PET and PLA were 92% and 34%, respectively after undergoing molecular chain breakage to form a series of small molecules in the system. Moreover, the H 2 production maintained an improvement to 100 mmol g−1 (PET) as well as 160 mmol g−1 (PLA) compared to the past research. In conclusion, this work is an effective attempt to develop a new method for water treatment based on the photothermal degradation of microplastics by BPM nanofluids, which also bears new ideas and ways for industrial pollutant removal and waste utilization. [Display omitted] [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 49
- Issue :
- 15
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 164304258
- Full Text :
- https://doi.org/10.1016/j.ceramint.2023.04.219