Template-directed growth of sustainable carboxymethyl cellulose-based aerogels decorated with ZIF-67 for activation peroxymonosulfate degradation of organic dyes

Mengke Zhao; Guigan Fang; Sufeng Zhang; Long Liang; Shuangquan Yao; Ting Wu

doi:10.1016/j.ijbiomac.2023.123276

Template-directed growth of sustainable carboxymethyl cellulose-based aerogels decorated with ZIF-67 for activation peroxymonosulfate degradation of organic dyes

Int J Biol Macromol. 2023 Mar 1:230:123276. doi: 10.1016/j.ijbiomac.2023.123276. Epub 2023 Jan 14.

Authors

Mengke Zhao¹, Guigan Fang², Sufeng Zhang³, Long Liang¹, Shuangquan Yao⁴, Ting Wu⁵

Affiliations

¹ Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
² Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China.
³ College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
⁴ Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
⁵ Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China. Electronic address: wuting@icifp.cn.

PMID: 36649861
DOI: 10.1016/j.ijbiomac.2023.123276

Abstract

A novel 3D advanced oxidation catalyst ZIF-67@C-CMC/rGO based on carboxymethyl cellulose (CMC) and reduced graphene oxide (rGO) was successfully synthesized by facile in-situ growth of Zeolitic imidazolate framework-67 (ZIF-67). C-CMC/rGO aerogel crosslinked by poly (methyl vinyl ether-alt-maleic acid)/polyethylene glycol system (PMVEMA/PEG) as the host material was prepared through a template-directed growth model and exhibited outstanding mechanical properties. The sustainable composite was successfully used as an efficient catalyst for activating peroxymonosulfate (PMS) to generate SO₄^-· and ·OH, then leads to the removal of organic contaminants. As a result, almost 100 % of 10 ppm MB/RhB solution can be degraded within 5 min due to the combination of catalyst aerogel and PMS. What's more, the aerogel showed a wide pH tolerance range from 4 to 9 and maintained up to 93 % of the contaminant removal rate compared to the initial value after four cycles. The ZIF-67@C-CMC/rGO aerogel with high load rate and excellent catalytic degradation performance not only solved the problem of dispersion and recovery of ZIF-67 particles, but also provided a new idea for the compound wastewater purification in sulfate radical-based advanced oxidation processes (SR-AOPs).

Keywords: Catalyst degradation performance; Template-directed growth model; ZIF-67@C-CMC/rGO aerogel.

MeSH terms

Carboxymethylcellulose Sodium*
Coloring Agents / chemistry
Zeolites*

Substances

peroxymonosulfate
graphene oxide
Carboxymethylcellulose Sodium
Zeolites
Coloring Agents