Research Progress of Natural Polymer Flocculants with Antibacterial Function

doi:10.19894/j.issn.1000-0518.230299

Chinese Journal of Applied Chemistry ›› 2024, Vol. 41 ›› Issue (2): 177-189.DOI: 10.19894/j.issn.1000-0518.230299

• Review • Previous Articles

Research Progress of Natural Polymer Flocculants with Antibacterial Function

Huai-Li ZHENG(), Wei LIU, Man-Li SUN

School of Environment and Engineering，Chongqing University，Chongqing 400045，China

Received:2023-09-22 Accepted:2023-12-11 Published:2024-02-01 Online:2024-03-05
Contact: Huai-Li ZHENG
About author:532477294@qq.com
Supported by:
the National Natural Science Foundation of China(22276018)

Abstract

Abstract:

Bacteria in water will pose a certain threat to the environment and human health， and traditional fungicides may cause secondary pollution and have poor stability and other problems. Seeking more efficient， environmentally friendly and reliable bacterial inactivation methods to gradually replace traditional disinfection methods has become an important research direction in the field of water treatment. In recent years， many academic researchers have actively explored natural polymer flocculants with antibacterial function. These materials are based on natural polymer compounds such as chitosan， starch and lignin， which not only show environment-friendly， widely sourced and renewable characteristics， but also have high modification potential to meet the needs of complex practical applications. This review describes in detail the latest research progress and application status of natural polymer flocculants with antibacterial function. The contents covered include substrates， modification methods， grafted monomers， flocculation properties and flocculation mechanism， antibacterial properties and antibacterial mechanism， etc. In addition， this review looks at future research directions on how to further optimize the performance of these polymer flocculants to meet the increasingly complex water treatment needs， while providing an academic perspective on future research. This series of research work provides profound connotation and theoretical support for further exploring the academic research of natural polymer flocculants with antibacterial function.

Key words: Flocculation, Flocculant, Antibacterial, Natural polymer, Antibacterial mechanism

CLC Number:

O636

Huai-Li ZHENG, Wei LIU, Man-Li SUN. Research Progress of Natural Polymer Flocculants with Antibacterial Function[J]. Chinese Journal of Applied Chemistry, 2024, 41(2): 177-189.

Figures/Tables 3

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No.	Material	Bacterial species	The initial bacterial density/（CFU·mL^－1）	Supernatant turbidity removal/%	Supernatant OD600 removal/%	Ref.
1	CTS?g?P（AM?DMC）	Salmonella	1×10⁷	97	95.2	［56］
2	CMC?g?PDMC	E.coli	1×10⁹	92.8	99	［57］
3	HTCC?CA	E.coli	1×10⁸	98.9	99.8	［66］
4	CTS?g?AM?MAPTAC	E.coli	1×10⁷	98.9	93.9	［70］
5	CPAM?g?NCS	Salmonella	2×10⁷	96.2	88.2	［80］
6	Chitosan?based cationic polyacrylamide flocculants	E.coli	1×10⁷	95.8	92.7	［81］
7	HBCs	E.coli	1×10⁷	90	99.9	［82］

No.	Material	Bacterial species	The initial bacterial density/（CFU·mL^－1）	Supernatant turbidity removal/%	Supernatant OD600 removal/%	Ref.
1	CTS?g?P（AM?DMC）	Salmonella	1×10⁷	97	95.2	［56］
2	CMC?g?PDMC	E.coli	1×10⁹	92.8	99	［57］
3	HTCC?CA	E.coli	1×10⁸	98.9	99.8	［66］
4	CTS?g?AM?MAPTAC	E.coli	1×10⁷	98.9	93.9	［70］
5	CPAM?g?NCS	Salmonella	2×10⁷	96.2	88.2	［80］
6	Chitosan?based cationic polyacrylamide flocculants	E.coli	1×10⁷	95.8	92.7	［81］
7	HBCs	E.coli	1×10⁷	90	99.9	［82］

No.	Material	Bacterial species	The initial bacterial density/（CFU·mL^－1）	Supernatant turbidity removal/%	Supernatant OD600 removal/%	Ref.
1	CMS?g?APAM	E.coli	1×10⁸	99.2	99.3	［4］
2	St?CTA	E.coli	1×10⁸	98.8	97.8	［86］
3	Alum?modified cassava peel Starch	E.coli	1×10⁴	92.75	Almost 100	［88］
4	S?BTP	E.coli	3×10⁸	Almost 100	99.4	［92］
5	Starch?graft?poly（2?methacryloyloxyethyl） trimethyl ammonium chloride	E.coli	1×10⁸	98.7	95.5	［93］
6	Starch?GTAC	E.coli	960	97	Almost 100	［94］

No.	Material	Bacterial species	The initial bacterial density/（CFU·mL^－1）	Supernatant turbidity removal/%	Supernatant OD600 removal/%	Ref.
1	CMS?g?APAM	E.coli	1×10⁸	99.2	99.3	［4］
2	St?CTA	E.coli	1×10⁸	98.8	97.8	［86］
3	Alum?modified cassava peel Starch	E.coli	1×10⁴	92.75	Almost 100	［88］
4	S?BTP	E.coli	3×10⁸	Almost 100	99.4	［92］
5	Starch?graft?poly（2?methacryloyloxyethyl） trimethyl ammonium chloride	E.coli	1×10⁸	98.7	95.5	［93］
6	Starch?GTAC	E.coli	960	97	Almost 100	［94］

No.	Classify	Material	Bacterial species	The initial bacterial density/（CFU·mL^-1）	Supernatant turbidity removal/%	Supernatant OD600 removal/%	Ref.
1	Lignin	Dual?function lignin?based polymer with hyperbranched amphiphilic structure	E.coli	1×10⁸	97.4	99.6	［96］
2	Lignin	LF1，LF2	E.coli	1×10⁸	98.1	99.0	［97］
3	Cellulose	QCs	S.aureus/E.coli	1×10⁵~1×10⁶	99.4	MIC：0.025% ^a MIC：0.0125% ^a	［98］
4	Cellulose	MC?g?TSC	S.aureus/E.coli	1×10⁶	95.5	97.0/99.7	［100］
5	Bacillus subtilis B2	BsSNPs	E.coli	480	85.69	Almost 100	［102］
6	MO	γ?Fe₂O₃?MO （et）	E.coli	54 400	/	93	［103］
7	TMB	TMB	S.typhimurium	1×10⁸	/	99.9	［104］

Research Progress of Natural Polymer Flocculants with Antibacterial Function

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