Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/137850
Title: Photothermal Janus anode with photosynthesis‐shielding effect for activating low‐temperature biological wastewater treatment
Authors: Zhang, Jingjing
Wang, Wei
You, Shijie
Qi, Dianpeng
Liu, Zhiyuan
Liu, Dongmei
Ma, Ming
Cui, Fuyi
Ren, Nanqi
Chen, Xiaodong
Keywords: Engineering::Materials
Issue Date: 2020
Source: Zhang, J., Wang, W., You, S., Qi, D., Liu, Z., Liu, D., . . . Chen, X. (2020). Photothermal Janus anode with photosynthesis‐shielding effect for activating low‐temperature biological wastewater treatment. Advanced Functional Materials, 30(7), 1909432-. doi:10.1002/adfm.201909432
Journal: Advanced Functional Materials
Abstract: Biological wastewater treatment (BWT), which is used to manage global wastewater, suffers from a sharp decrease in microbial activity at low temperature (<10 °C). Photothermal technology with a high energy efficiency theoretically exceeding 80% has the potential to activate low‐temperature BWT. However, photothermal BWT is threatened by the propagation of photosynthetic algae in wastewater under irradiation, and these microorganisms can suppress the functional bacteria or even kill anaerobic species by photosynthetically releasing oxygen. Herein, taking microbial fuel cells (MFCs) as a representative biological reactor, a photothermal Janus anode (PTJA) is designed, composed of a carbon black/polydimethylsiloxane photothermal nonporous layer and a graphite felt porous layer to promote low‐temperature BWT. Unlike traditional symmetrical porous anodes, the nonporous layer of the PTJA can isolate the wastewater in the porous layer from light irradiation during photothermal conversion, thus preventing photosynthetic algae from poisoning anaerobic functional microbes. Under ≈1 sun illumination, the PTJA MFC exhibits 1.6 and 24.2 times higher organic pollutant removal rate and power density generation, respectively, than MFCs using traditional anodes for low‐temperature BWT (7.0 ± 2.0 °C). This development can allow novel utilization of solar energy and is a promising resolution for low‐temperature BWT.
URI: https://hdl.handle.net/10356/137850
ISSN: 1616-301X
DOI: 10.1002/adfm.201909432
Rights: This is the peer reviewed version of the following article: Zhang, J., Wang, W., You, S., Qi, D., Liu, Z., Liu, D., . . . Chen, X. (2020). Photothermal Janus anode with photosynthesis‐shielding effect for activating low‐temperature biological wastewater treatment. Advanced Functional Materials, 30(7), 1909432-. doi:10.1002/adfm.201909432, which has been published in final form at https://doi.org/10.1002/adfm.201909432. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

Files in This Item:
File Description SizeFormat 
17_AFM final maintext-20191201.pdf2.81 MBAdobe PDFView/Open

SCOPUSTM   
Citations 20

11
Updated on Nov 26, 2022

Web of ScienceTM
Citations 20

9
Updated on Nov 27, 2022

Page view(s)

221
Updated on Dec 1, 2022

Download(s) 50

36
Updated on Dec 1, 2022

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.