Carbohydrates-rich corncobs supported metal-organic frameworks as versatile biosorbents for dye removal and microbial inactivation

Chao Duan; Xin Meng; Chaoran Liu; Wanli Lu; Jun Liu; Lei Dai; Wenliang Wang; Wei Zhao; Chuanyin Xiong; Yonghao Ni

doi:10.1016/j.carbpol.2019.115042

Carbohydrates-rich corncobs supported metal-organic frameworks as versatile biosorbents for dye removal and microbial inactivation

Carbohydr Polym. 2019 Oct 15:222:115042. doi: 10.1016/j.carbpol.2019.115042. Epub 2019 Jul 2.

Authors

Chao Duan¹, Xin Meng², Chaoran Liu², Wanli Lu², Jun Liu², Lei Dai², Wenliang Wang², Wei Zhao², Chuanyin Xiong², Yonghao Ni³

Affiliations

¹ College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, 710021, China. Electronic address: duanchaonba@126.com.
² College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, 710021, China.
³ College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, 710021, China; Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, E3B 5A3, New Brunswick, Canada.

PMID: 31320080
DOI: 10.1016/j.carbpol.2019.115042

Abstract

In this work, biodegradable cellulose-based biosorbents (MOFs/OCBs) with dual function of dye removal and microbial inactivation were fabricated by in situ anchoring metal-organic frameworks (MOFs) on the TEMPO oxidized corncobs (OCBs). Results showed that delignification and oxidation can develop the OCBs with more cellulose content, carboxyl groups and specific surface area, thus facilitating the deposition of MOFs. The porous and carbohydrate-rich OCBs can serve as supports and stabilizers for MOFs, allowing for enhanced stability and recyclability of MOFs powders. The MOFs, namely HKUST-1 and ZIF-8, can endow the OCBs multiple functions of good adsorption capacity to methyl orange (from 8% of OCBs to 55% of HKUST-1/OCBs and 84% of ZIF-8/OCBs) and excellent antibacterial activity (from 0 of OCBs to 90.2% of HKUST-1/OCBs and 44.8% of ZIF-8/OCBs). Such a concept may offer a new pathway for preparing economical and efficient biosorbents for environmental remedy purposes.

Keywords: Biosorbent; Cellulose-rich corncob; Dye removal; MOFs; Microbial inactivation.

MeSH terms

Adsorption
Anti-Bacterial Agents / chemistry
Anti-Bacterial Agents / pharmacology*
Cellulose / chemistry*
Coloring Agents / chemistry
Coloring Agents / isolation & purification*
Equipment Reuse
Escherichia coli / drug effects
Kinetics
Metal-Organic Frameworks / chemistry
Metal-Organic Frameworks / pharmacology*
Organometallic Compounds / chemistry
Piperidines / chemistry
Plant Components, Aerial / chemistry*
Water Pollutants, Chemical / chemistry
Zea mays / chemistry

Substances

2,2,6,6-tetramethyl-1-piperidine
Anti-Bacterial Agents
Coloring Agents
Metal-Organic Frameworks
Organometallic Compounds
Piperidines
Water Pollutants, Chemical
bis(1,3,5-benzenetricarboxylate)tricopper(II)
Cellulose